㻌 ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ䛿䚸䠎䠌䠌䠕ᖺᗘ䛻ᩥ㒊⛉Ꮫ┬䛛䜙䛂᥋ྜ⛉Ꮫඹྠ฼⏝䞉ඹྠ◊✲ᣐ
Ⅼ䛃䛸䛧䛶ㄆᐃ䛥䜜䚸⁐᥋ᕤᏛ䞉᥋ྜ⛉Ꮫ䛻㛵䛩䜛ᡃ䛜ᅜ䛷၏୍䛾⥲ྜ◊✲ᡤ䛸䛧䛶䚸ᅜෆእ䛛䜙ᗈ䛟ඹྠ◊✲ဨ䜢ཷ䛡ධ䜜䛶䛔䜛䚹㻌 ᮏ◊✲ᡤ䛾ඹྠ◊✲ဨ䛻ಀ䜛බເㄢ㢟䛻䛿䚸䛂୍⯡බເ◊✲ㄢ㢟䛃䛸䛂ඛᑟⓗ㔜Ⅼㄢ㢟䛃䛾䠎✀㢮䛾༊ศ䜢タ䛡䛶䛔䜛䚹୍⯡බເ◊✲ㄢ㢟䛿䚸ᚑ๓䜎䛷䛾ྛ◊✲ศ㔝༢఩䛷䛾ඹྠ◊✲ㄢ㢟䛻㛵䛩䜛䜒䛾䛷䛒䜚䚸䠎䠌䠍䠌ᖺᗘ䜘䜚㛤ጞ䛧䛯ඛᑟⓗ㔜Ⅼㄢ㢟䛷䛿䚸ᙜ◊✲ᡤ䛸䛧䛶㔜Ⅼⓗ䛻ྲྀ䜚⤌䜐䜉䛝◊✲ㄢ㢟䜢㑅ᐃ䛧䚸」ᩘ䛾ඹྠ◊✲ဨ䛸◊✲ᡤᩍဨ䛜䝏䞊䝮䛸䛧䛶ཧຍ䛧䛶ᙜヱㄢ㢟䛻ྲྀ䜚⤌䜐䜒䛾䛷䛒䜛䚹≉䛻䚸ᚋ⪅䛾ඛᑟⓗ㔜Ⅼㄢ㢟䛻䛚䛔䛶䛿䚸ᅜෆእ䛷䛾ከᵝ䛺Ꮫ⾡㡿ᇦ䛸䛾㐃ᦠ◊✲䜢㏻䛨䛶䚸᥋ྜ⛉Ꮫඹྠ฼⏝䞉ඹྠ◊✲ᣐⅬ䛾Ⓨᒎ䛻㈨䛩䜛䛣䛸䜢┠ⓗ䛸䛩䜛䚹䛥䜙䛻䚸䠎䠌䠍䠑ᖺᗘ䜘䜚ᅜ㝿ඹྠ◊✲ဨไᗘ䜢᪂䛯䛻タ䛡䚸⁐᥋䞉᥋ྜศ㔝䛾ୡ⏺ᣐⅬ䛸䛧䛶㈉⊩䛩䜛䛣䛸䜢┠ᣦ䛧䛶䛔䜛䚹㻌 䠎䠌䠎䠏ᖺᗘ䛻䛚䛔䛶䛿䚸௨ୗ䛻♧䛩ඛᑟⓗ㔜Ⅼㄢ㢟䜢㑅ᐃ䛧䚸㐙⾜䛧䛶䛝䛯䚹䈄ᵓ㐀⏝ᮦᩱ⁐᥋㒊䛾Ỉ⣲๭䜜ホ౯ᡭἲ䛾㧗ᗘ໬䛻㛵䛩䜛◊✲䠄⥅⥆䠋ᙺ๭ศᢸᆺ䠅䠄௦⾲⏦ㄳ⪅䠖୕ୖ Ḡᕼ ᩍᤵ䠅䈄≉␗䛺ᵓ㐀䜢ෆໟ䛧䛯䝬䜲䜽䝻᥋ྜ㒊䛾㧗ᶵ⬟䞉㧗ಙ㢗໬䛻㛵䛩䜛◊✲䠄⥅⥆䠋ᙺ๭ศᢸᆺ䠅䠄௦⾲⏦ㄳ⪅䠖ᕴ ⿱❶ ㅮᖌ䠅䈄㟁☢⇕ὶయไᚚ䜢⏝䛔䛯㧗⢭⣽䝽䜲䝲䜰䞊䜽✚ᒙ㐀ᙧ䝅䝇䝔䝮䛾㛤Ⓨ䠄᪂つ䠋䠢䠯ᆺ䠅䠄௦⾲⏦ㄳ⪅䠖ྂච㻌 ஂᘺ ㅮᖌ䠅䠎䠌䠎䠏ᖺᗘᐇ᪋䛾୍⯡බເ◊✲ㄢ㢟䛸ඛᑟⓗ㔜Ⅼㄢ㢟䜈䛾ཧຍேᩘ䛿ୗ⾲䛾㏻䜚䛷䛒䜛䚹୍⯡බເ◊✲ㄢ㢟ඛᑟⓗ㔜Ⅼㄢ㢟ᅜෆඹྠ◊✲ဨᅜ㝿ඹྠ◊✲ဨᅜෆඹྠ◊✲ဨᅜ㝿ඹྠ◊✲ဨ

䠎䠌䠐ே

䠏䠌ே

䠍䠓ே 

䠍ே

㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 ୍⯡බເ◊✲ㄢ㢟䛸䛾㔜」⏦ㄳㄢ㢟䜢ྵ䜐䚹㻌 䛺䛚䚸䠎䠌䠎䠐ᖺᗘ䛻ᐇ᪋䛩䜛ඛᑟⓗ㔜Ⅼㄢ㢟䛸䛧䛶䚸ḟ䛾䠏䝔䞊䝬䜢㑅ᐃ䛧䛶䛔䜛䚹䈄≉␗䛺ᵓ㐀䜢ෆໟ䛧䛯䝬䜲䜽䝻᥋ྜ㒊䛾㧗ᶵ⬟䞉㧗ಙ㢗໬䛻㛵䛩䜛◊✲䠄⥅⥆䠋ᙺ๭ศᢸᆺ䠅䠄௦⾲⏦ㄳ⪅䠖ᕴ ⿱❶ ㅮᖌ䠅䈄㟁☢⇕ὶయไᚚ䜢⏝䛔䛯㧗⢭⣽䝽䜲䝲䜰䞊䜽✚ᒙ㐀ᙧ䝅䝇䝔䝮䛾㛤Ⓨ䠄⥅⥆䠋ᙺ๭ศᢸᆺ䠅䠄௦⾲⏦ㄳ⪅䠖ྂච ஂᘺ ㅮᖌ䠅䈄ḟୡ௦㌴య䛾䝷䜲䝣䝃䜲䜽䝹 '; タィ䛻ྥ䛡䛯㧗ಙ㢗ᛶ⭉㣗⑂ປண ᢏ⾡䛾᥈ồ䠄᪂つ䠋䠢䠯ᆺ䠅 䠄௦⾲⏦ㄳ⪅䠖ⱂ⃝㻌 ஂ ᩍᤵ䠅䞉䞉䞉 㻝

䞉䞉䞉 㻟

䞉䞉䞉 㻡

䞉䞉䞉 㻝㻝䞉䞉䞉 㻝㻟䞉䞉䞉 㻝㻢

−i−䞉䞉䞉 㻝㻤䞉䞉䞉 㻞㻜䞉䞉䞉 㻞㻞䞉䞉䞉 㻞㻠䞉䞉䞉 㻞㻢䞉䞉䞉 㻞㻤䞉䞉䞉 㻟㻜䞉䞉䞉 㻟㻞䞉䞉䞉 㻟㻠䞉䞉䞉 㻟㻢

− ii −

䞉䞉䞉 㻟㻤䞉䞉䞉 㻠㻜䞉䞉䞉 㻠㻞䞉䞉䞉 㻠㻠䞉䞉䞉 㻠㻢䞉䞉䞉 㻠㻤䞉䞉䞉 㻡㻜䞉䞉䞉 㻡㻞䞉䞉䞉 㻡㻠䞉䞉䞉 㻡㻢䞉䞉䞉 㻡㻤

− iii −

䞉䞉䞉 㻢㻜䞉䞉䞉 㻢㻞䞉䞉䞉 㻢㻠䞉䞉䞉 㻢㻢䞉䞉䞉 㻢㻤䞉䞉䞉 㻣㻜䞉䞉䞉 㻣㻞䞉䞉䞉 㻣㻠䞉䞉䞉 㻣㻢䞉䞉䞉 㻣㻤

− iv −

䞉䞉䞉 㻤㻜䞉䞉䞉 㻤㻞䞉䞉䞉 㻤㻠䞉䞉䞉 㻤㻢䞉䞉䞉 㻤㻤䞉䞉䞉 㻥㻜䞉䞉䞉 㻥㻞䞉䞉䞉 㻥㻠

−v−

䞉䞉䞉 㻥㻢䞉䞉䞉 㻥㻤䞉䞉䞉 㻝㻜㻜䞉䞉䞉 㻝㻜㻞䞉䞉䞉 㻝㻜㻠䞉䞉䞉 㻝㻜㻢䞉䞉䞉 㻝㻜㻤䞉䞉䞉 㻝㻝㻞䞉䞉䞉 㻝㻝㻠䞉䞉䞉 㻝㻝㻢䞉䞉䞉 㻝㻝㻤䞉䞉䞉 㻝㻞㻜䞉䞉䞉 㻝㻞㻞䞉䞉䞉 㻝㻞㻠䞉䞉䞉 㻝㻞㻢

− vi −

䞉䞉䞉 㻝㻞㻤䞉䞉䞉 㻝㻟㻜䞉䞉䞉 㻝㻟㻞䞉䞉䞉 㻝㻟㻠䞉䞉䞉 㻝㻟㻢䞉䞉䞉 㻝㻟㻤䞉䞉䞉 㻝㻠㻜䞉䞉䞉 㻝㻠㻞䞉䞉䞉 㻝㻠㻠䞉䞉䞉 㻝㻠㻢䞉䞉䞉 㻝㻠㻤

− vii −

䞉䞉䞉 㻝㻡㻜䞉䞉䞉 㻝㻡㻞䞉䞉䞉 㻝㻡㻠䞉䞉䞉 㻝㻡㻢䞉䞉䞉 㻝㻡㻤䞉䞉䞉 㻝㻢㻜䞉䞉䞉 㻝㻢㻞䞉䞉䞉 㻝㻢㻠䞉䞉䞉 㻝㻢㻢䞉䞉䞉 㻝㻢㻤䞉䞉䞉 㻝㻣㻜

− viii −䞉䞉䞉 㻝㻣㻞䞉䞉䞉 㻝㻥㻝䞉䞉䞉 㻝㻥㻟䞉䞉䞉 㻝㻥㻡䞉䞉䞉 㻝㻥㻣䞉䞉䞉 㻝㻥㻥䞉䞉䞉 㻞㻜㻝䞉䞉䞉 㻞㻜㻟䞉䞉䞉 㻞㻜㻡䞉䞉䞉 㻞㻜㻣

− ix −

䞉䞉䞉 㻞㻜㻥䞉䞉䞉 㻞㻝㻝䞉䞉䞉 㻞㻝㻟䞉䞉䞉 㻞㻝㻡䞉䞉䞉 㻞㻝㻣䞉䞉䞉 㻞㻝㻥䞉䞉䞉 㻞㻞㻝䞉䞉䞉 㻞㻞㻟䞉䞉䞉 㻞㻞㻡

−x−䞉䞉䞉 㻞㻞㻣䞉䞉䞉 㻞㻞㻥

− xi −

䞉䞉䞉 㻞㻟㻝䞉䞉䞉 㻞㻟㻟䞉䞉䞉 㻞㻟㻢䞉䞉䞉 㻞㻟㻥䞉䞉䞉 㻞㻠㻞䞉䞉䞉 㻞㻠㻠䞉䞉䞉 㻞㻠㻢䞉䞉䞉 㻞㻠㻤䞉䞉䞉 㻞㻡㻜䞉䞉䞉 㻞㻡㻟

− xii −

䞉䞉䞉 㻞㻡㻢䞉䞉䞉 㻞㻡㻤䞉䞉䞉 㻞㻢㻜䞉䞉䞉 㻞㻢㻞䞉䞉䞉 㻞㻢㻠䞉䞉䞉 㻞㻢㻢䞉䞉䞉 㻞㻢㻤䞉䞉䞉 㻞㻣㻜䞉䞉䞉 㻞㻣㻞

− xiii −䞉䞉䞉 㻞㻣㻠䞉䞉䞉 㻞㻣㻢䞉䞉䞉 㻞㻣㻤

− xiv −

ඛᑟⓗ㔜Ⅼㄢ㢟䞉◊✲ሗ࿌᭩㻌䠄ᵓ㐀⏝ᮦᩱ⁐᥋㒊䛾Ỉ⣲๭䜜ホ౯ᡭἲ䛾㧗ᗘ໬䛻㛵䛩䜛◊✲䠅ᵓ㐀⏝ᮦᩱ䛾⁐᥋㒊䛾Ỉ⣲๭䜜ホ౯䛿䚸୺䛻౑⏝ᮦᩱ䛾つᐃ䜔⁐᥋᮲௳䛾㑅ᐃ䛾䛯䜑䛾▱ぢ䜢ᚓ䜛䛣䛸䜢┠ⓗ䛸䛧䛶䚸ᕧどⓗ䛺㈇Ⲵᛂຊ䛸ᖹᆒⓗ䛺Ỉ⣲㔞䛸䛔䛳䛯ᕤᏛⓗ䛺ᣦᶆ䛻ᇶ䛵䛔䛶⾜䜟䜜䜛䛣䛸䛜ከ䛔䚹୍᪉䚸⁐᥋㒊䛻䛿ᙧ≧䛾୙㐃⥆䜔ᚤど⤌⧊䛾୙ᆒ㉁䛜䛒䜚䚸ᒁᡤⓗ䛺ᛂຊ㞟୰䜔Ỉ⣲㞟✚䛜⏕䛨䜛䚹Ỉ⣲๭䜜䛿䚸ᛂຊ㞟୰䜔Ỉ⣲㞟✚䛻䜘䛳䛶⏕䛨䜛䛯䜑䚸ᛂຊ䜔Ỉ⣲⃰ᗘ䛾୙ᆒ୍䛺ศᕸ䜢⪃៖䛧䛯ホ౯䜢ᐇ⌧䛩䜛䛣䛸䛿䚸Ỉ⣲๭䜜ホ౯䛾㧗ᗘ໬䛾䛯䜑䛾㔜せ䛺ㄢ㢟䛷䛒䜛䚹䛭䛣䛷ᮏㄢ㢟䛷䛿䚸䝬䜽䝻䠄⁐᥋⥅ᡭ䜔ヨ㦂∦䠅䚸䝭䜽䝻䠄ᮦᩱ⤌⧊䠅䛾཮᪉䛾䝺䝧䝹䛷䛾୙ᆒ୍䛺ᛂຊ䛚䜘䜃Ỉ⣲⃰ᗘศᕸ䜢⪃៖䛧䛯䚸Ỉ⣲๭䜜ホ౯ᡭἲ䛾ᵓ⠏䜢┠ⓗ䛸䛩䜛䚹ᚑ᮶䛾ᖹᆒ್䛻䜘䜛ᣦᶆ䛻᭰䛘䛶䚸ᒁᡤ䛾ᛂຊ䜔Ỉ⣲⃰ᗘ䜢ᣦᶆ䛸䛧䛯ホ౯ᡭἲ䜢ᥦ᱌䞉㐺⏝䛩䜛䛯䜑䛻䚸ᚑ᮶䛾ᡭἲ䛾ㄢ㢟䜔䚸ᒁᡤ᮲௳䜢⏝䛔䜛䛣䛸䛻䜘䛳䛶⏕䛨䜛᪂䛯䛺ㄢ㢟䛺䛹䜢ᩚ⌮䛧䚸䛭䜜䜙䜢䜅䜎䛘䛯᪂䛯䛺ᡭἲ䛾ᥦ᱌䛸㐺⏝ྍ⬟ᛶ䜢᳨ウ䛩䜛䚹䛆ᡂᯝᴫせ䛇ᮏඛᑟⓗ㔜Ⅼㄢ㢟䜢ᐇ᪋䛧䛯 㻟 ᖺ㛫䜢㏻䛨䛶䚸㻔㻝㻕㻌 ஧┦䝇䝔䞁䝺䝇㗰ẕᮦ䛚䜘䜃⁐᥋㔠ᒓ䜢ඹ㏻䛾ᮦᩱ䛸䛧䛯ᣑᩓᛶỈ⣲䛾ศᕸ≧ែ䜔ᨺฟᣲື䛾᳨ウ䚸㻔㻞㻕㻌 ᵓ㐀ᮦᩱ⁐᥋㒊䛾ホ౯䜈䛾ᒎ㛤䜢ぢᤣ䛘䛯⇕ఏᑟ䞉⇕ᛂຊ䞉Ỉ⣲ᣑᩓ䜢㐃ᡂ䛥䛫䛯Ỉ⣲จ㞟ᣲື䛾䝅䝭䝳䝺䞊䝅䝵䞁ᡭἲ䛾ᵓ⠏䞉ヲ⣽໬䜢ᐇ᪋䛧䛯䚹㻌㻔㻝㻕䛻䛴䛔䛶䛿䚸஧┦䝇䝔䞁䝺䝇㗰ẕᮦ䛚䜘䜃⁐᥋㔠ᒓ䛻ᑐ䛧䛶㟁Ẽ໬ᏛⓗỈ⣲䝏䝱䞊䝆䜢⾜䛔䚸㐺ษ䛺䝏䝱䞊䝆᮲௳䛾ᑟฟ䜢⾜䛔䚸㛗᫬㛫䛾䝏䝱䞊䝆䜢⾜䛳䛶䜒Ỉ⣲㔞䛜㣬࿴䛧䛺䛔䜒䛾䛾䚸୍ᐃ㔞䛾Ỉ⣲䛿䝏䝱䞊䝆䛥䜜䛶䛔䜛䛣䛸䜢ᢕᥱ䛧䛯䚹ᘬ䛝⥆䛔䛶䚸ษḞ௜Ỉ⣲䝏䝱䞊䝆ᮦ䜢⏝䛔䛶ᘬᙇヨ㦂୰䛻ᨺฟ䛥䜜䜛Ỉ⣲䛾ᐃ䜢ヨ䜏䛯䚹

ᐃᐇ⦼䛾䛒䜛䜰䝹䝭䝙䜴䝮ྜ㔠ᮦ䛸䛿Ỉ⣲䛾ᨺฟᣲື䛜኱䛝䛟䛣䛸䛺䜛䛣䛸䜢᫂䜙䛛䛻䛩䜛䛣䛸䛜䛷䛝䛯䚹㻔㻞㻕䛻䛴䛔䛶䛿䚸Ỉ⣲⎔ቃୗ䛷䛾⑂ປட⿣㐍ᒎホ౯䛻ྥ䛡䛯ᡭἲ䛾ᵓ⠏䜎䛷ᒎ㛤䛩䜛䛣䛸䛜䛷䛝䛯䚹䛥䜙䛻䚸ཧ⏬䛧䛯◊✲⪅㛫䛷◊✲䝥䝻䝆䜵䜽䝖䜢ඹྠ䛷ᥦ᱌䞉ᛂເ䛩䜛䛣䛸䛻䜒䛴䛺䛜䛳䛯䚹ṧᛕ䛺䛜䜙᥇ᢥ䛻䛿⮳䜙䛺䛛䛳䛯䛜௒ᚋ䜒⥅⥆䛧䛶᳨ウ䛧䛶䛔䛟䚹㻌ࢫ࣏ࢵࢺ⁐᥋ࡋࡓ㉸㧗ᙉᗘ 75,3 ᆺ࣐ࣝࢸࣥࢧ࢖ࢺ㗰ᯈࡢ༑Ꮠᘬᙇᙉࡉ࡟ཬࡰࡍỈ⣲ࡢᙳ㡪
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ࢼ࢖ࢺ Ȗ5 ࡢኚែㄏ㉳ረᛶ㸦75,3㸧࡟ࡼࡾ㸪+6 㗰࡜ẚ㍑ࡋ࡚
N1 ࡜㧗࠸༑Ꮠᘬᙇᙉࡉ &76 ࢆ♧ࡍࠋࡲࡓ㸪70 㗰ࡢỈ⣲ࢳ࣮ࣕࢪᮦ㸦ZLWK+㸧ࡶ N1 ࡜  ಸ⛬ᗘ㧗࠸ࠋ
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70ZLWK+)LJ)UDFWXUHPRGHIRU70VWHHOZLWKRXWDQGZLWKK\GURJHQ㸦ඛᑟⓗ㔜Ⅼㄢ㢟㸧Ỉ⣲ࡢྍど໬ᡭἲ࡟ࡼࡿ஧┦ࢫࢸࣥࣞࢫ㗰⁐᥋㔠ᒓ㒊ࡢỈ⣲ᣲືゎᯒ᪂ᒃ὾ᕤᴗ㧗➼ᑓ㛛Ꮫᰯ ⎔ቃᮦᩱᕤᏛ⛉┿୰ಇ᫂ࠊ᪥㔝Ꮥ⣖⫼ᬒ࠾ࡼࡧ┠ⓗ஧┦ࢫࢸࣥࣞࢫ㗰ࡣࠊࣇ࢙ࣛ࢖ࢺ┦࡜࣮࢜ࢫࢸࢼ࢖ࢺ┦ࡀྠ㔞ᙧᡂࡉࢀࡿࡼ࠺࡟ྜ㔠⤌ᡂࡀタィࡉࢀ࡚࠾ࡾࠊᶵᲔⓗᛶ㉁ࡸ⪏㣗ᛶ࡟ඃࢀࡿࡇ࡜࠿ࡽࠊ✀ࠎࡢ㐣㓞࡞⭉㣗⎔ቃ࡟ࡉࡽࡉࢀࡿᵓ㐀≀➼࡟⏝࠸ࡽࢀ࡚࠸ࡿࠋ
㔠ᒓᮦᩱࢆᵓ㐀㒊ᮦ࡟⏝࠸ࡿ㝿࡟ࡣ⁐᥋ᕤ⛬ࡀḞ࠿ࡏ࡞࠸ࡀࠊ஧┦ࢫࢸࣥࣞࢫ㗰⁐᥋㔠ᒓ࡛ࡣ┦ẚࡀᔂࢀࡓሙྜ࡟ࡣᶵᲔⓗ≉ᛶࡸ⪏㣗ᛶࡀపୗࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋࡉࡽ࡟ࠊࣇ࢙ࣛ࢖ࢺ┦ࡀⴭࡋࡃቑຍࡋࡓሙྜ
࡟ࡣࠊప๭ࢀࡀ⏕ࡌࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋప

๭ࢀࡣ⁐᥋᫬࡟౵ධࡋࡓỈ⣲࡟ࡼࡗ࡚๭ࢀࡀ⏕ࡌࡿ⌧㇟࡛࠶ࡾࠊࡇࢀࢆ㜵ࡄࡓࡵ࡟ࡣᮦᩱ୰࡛ࡢỈ⣲ᣲືࡢ⌮ゎࡀᚲせ࡛࠶ࡿࠋ ᖺᗘࡣỈ⣲ࢆ㔠ᒓ㖟࡜ࡋ࡚ྍど໬ࡍࡿỈ⣲࣐࢖ࢡࣟࣉࣜࣥࢺἲࢆỈ⣲ࢳ࣮ࣕࢪࡋࡓ஧┦ࢫࢸࣥࣞࢫ㗰⁐᥋㔠ᒓ࡟㐺⏝ࡋ࡚ࠊỈ⣲ᨺฟ఩⨨ࡢྍど໬ࢆヨࡳࡓࠋࡑࡢ⤖ᯝ࡜ࡋ࡚ࠊỈ⣲ࢳ࣮ࣕࢪ㠃࡟࠾࠸࡚ࡣࣇ࢙ࣛ࢖ࢺ┦ࠊ࣮࢜ࢫࢸࢼ࢖ࢺ┦ࠊ┦⏺㠃ࡀỈ⣲ࡢᨺฟ఩⨨࡜࡞ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊங๣ࢆ⿕そࡋ࡚࠿ࡽᐃ╔ฎ⌮ࢆ⾜࠺ࡲ࡛ࡢᐊ
ࢆኚ໬ࡉࡏࡓᐇ㦂ࢆ⾜࠸ࠊỈ⣲ᨺฟ఩⨨㸦㖟⢏Ꮚࡢ఩⨨㸧ࡢኚ໬ࢆㄪ࡭ࡿ࡜ࠊᐊ

ಖᣢ᫬㛫ಖᣢ᫬㛫ࡀ㛗࠸࡯࠺ࡀࠊ

ࣇ࢙ࣛ࢖ࢺ┦࠿ࡽࡢᨺฟ๭ྜࡀቑຍࡋࡓࠋỈ⣲ࡢඃඛⓗ࡞ᣑᩓ⤒㊰ࡸ㞟✚ሙᡤࢆㄪ࡭ࡿࡓࡵ࡟ࡣࠊỈ⣲⃰ᗘࡢ㧗࠸ࢳ࣮ࣕࢪ㠃࡛ࡢྍど໬࡛ࡣ࡞ࡃࠊࢳ࣮ࣕࢪ㠃࡜཯ᑐ㠃ഃ࡟࠾࠸࡚ᣑᩓࡋ࡚ࡁࡓỈ⣲ࢆྍど໬ࡍࡿᚲせࡀ࠶ࡿ࡜ᛮࢃࢀࡓࠋࡑࡇ࡛௒ᖺᗘࡣ㝜ᴟ㟁ゎἲ࡟ࡼࡾỈ⣲ࢆヨᩱࡢ∦㠃࠿ࡽࢳ࣮ࣕࢪࡋࠊ㏱㐣㠃࡟ᑐࡋ࡚㖟ࢹࢥ࣮ࣞࢩࣙࣥἲࢆ㐺⏝ࡍࡿࡇ࡜࡛ࠊỈ⣲ࡢ⛣ື⤒㊰ࡸ㞟✚఩⨨ࢆ᳨ウࡋࡓࠋ
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◊✲᪉ἲ

ᮏ◊✲࡛ࡣࠊᕷ㈍ࡢ஧┦ࢫࢸࣥࣞࢫ㗰⁐᥋Წ㸦᪥㕲⁐᥋ᕤᴗ♫〇 6'3: 㸧ࢆ౑⏝ࡋ࡚ࠊⅣ⣲㗰ୖ࡟  ᒙࡢ⫗┒⁐᥋ࢆ⾜ࡗࡓࠋྛᐇ㦂࡛ࡣࠊẕᮦᕼ㔘ࡢᙳ㡪ࢆ㑊ࡅࡿࡓࡵ࡟ࠊ࠸ࡎࢀࡶ᭱⤊ᒙ࠿ࡽヨ㦂∦ࢆ᥇ྲྀࡋࡓࠋ
Ỉ⣲㔞ᐃ࠾ࡼࡧ㖟ࢹࢥ࣮ࣞࢩࣙࣥἲࢆ㐺⏝ࡍࡿࡓࡵ࡟ࠊཌࡉ PP ࡢヨ㦂∦ࢆษࡾฟࡋࡓࠋỈ⣲㔞ᐃヨ㦂∦ࡣࠊ⾲㠃ࢆ ࡲ࡛ࡢᶵᲔ◊☻௙ୖࡆࢆ⾜࠸ࠊࡑࢀ࠿ࡽ㝜ᴟ㟁ゎἲ࡟ࡼࡿỈ⣲ࢳ࣮ࣕࢪࢆ᪋ࡋࡓࠋ㝧ᴟ࡟ⓑ㔠ࢆ⏝࠸࡚ࠊ1D&OJ/ 1+6&1 Ỉ⁐ᾮ୰࡛ࠊ㟁ὶᐦᗘ $P ࡜ࡋ࡚ࠊᐊ

࡛ K ࡢỈ⣲ࢳ࣮ࣕࢪࢆ⾜ࡗࡓࠋࢳ࣮ࣕࢪ⤊஢ᚋࡣ⾲㠃ᒙࢆᶵᲔ◊☻࡛㝖ཤࡋࡓᚋ࡟ࠊ༙ᑟయ࢞ࢫࢭࣥࢧࢆ᳨ฟჾ࡜ࡍࡿ࢞ࢫࢡࣟ
࣐ࢺࢢࣛࣇࢆ⏝࠸࡚ࠊ᪼⬺㞳ศᯒἲ࡟ࡼࡾỈ⣲㔞ࢆᐃࡋࡓࠋ㖟ࢹࢥ࣮ࣞࢩࣙࣥἲࢆ㐺⏝ࡍࡿヨ㦂∦ࡣࠊ⾲㠃ࢆ㟁ゎ◊☻࡟ࡼࡿ㙾㠃௙ୖࡆ࡜ࡋ࡚ࠊ࢚ࢵࢳࣥࢢࢆ᪋ࡋ࡚
⤌⧊ࢆ⌧ฟࡋࡓᚋ࡟ࠊୖグࡢ᮲௳࡛Ỉ⣲ࢳ࣮ࣕࢪࢆ⾜ࡗࡓࠋࡑࢀ࠿ࡽࠊP0 ࡢࢪࢩ࢔ࣀ㖟㓟࣒࢝ࣜ࢘Ỉ⁐ᾮ࡟ PLQ ᾐₕࡋࠊὙί࣭஝⇱ࢆ⤒࡚ࠊヨᩱ⾲㠃ࢆ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾㸦6(0㸧࡛ほᐹࡋࡓࠋヨᩱ⾲㠃࡟ほᐹࡉࢀࡿ⢏Ꮚࡣ࢚ࢿࣝࢠ࣮ศᩓᆺ ; ⥺㸦('6㸧ศᯒ⿦⨨ࢆ⏝࠸࡚ࠊ㖟⢏Ꮚ࡛࠶ࡿ࠿ࢆㄪ࡭ࡓࠋ
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

⤖ᯝ

ᅗ  ࡟ࠊỈ⣲ࢳ࣮ࣕࢪࡋࡓヨᩱ࡟ᑐࡋ࡚ 7'$ ࡟ࡼࡾᚓࡽࢀࡓỈ⣲ᨺฟ᭤⥺ࢆ♧ࡍࠋR& ࡲ࡛ࡢ⥲ᨺฟỈ⣲㔞ࡣᐊಖᣢ᫬㛫ࡀ K ࡢヨᩱ࡛ࡣ SSP ࡛࠶ࡾࠊከ㔞ࡢỈ⣲ࡀࢳ࣮ࣕࢪࡉࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋỈ⣲ࢳ࣮ࣕࢪᚋ࡟ᐊ
୍㒊ࡀᐊ࡛ K ಖᣢࡍࡿ࡜ࠊ⥲ᨺฟỈ⣲㔞ࡣ SSP ࡲ࡛ῶᑡࡋ࡚࠾ࡾࠊࢳ࣮ࣕࢪࡉࢀࡓỈ⣲ࡢಖᣢ୰࡟ᨺฟࡉࢀ࡚࠸ࡿࠋỈ⣲ᨺฟ᭤⥺࡜ࡢᑐᛂࢆぢࡿ࡜ࠊᐊಖᣢ᫬㛫ࡀ K ࡢヨᩱ࡛ࡣపഃ࡛ࡢỈ⣲ᨺฟ㏿ᗘࡀᑠࡉࡃ࡞ࡗ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋỈ⣲ࡢᣑᩓࡀ㏿࠸ࣇ࢙ࣛ࢖ࢺ┦୰ࢆ㏻ࡌ࡚ࠊỈ⣲ࡀᨺฟࡉࢀࡓࡶࡢ࡜⪃࠼ࡽࢀࡿࠋᐊ

࡛ K ಖᣢᚋ࡟࠾࠸࡚ࡶࠊỈ⣲ࡀヨᩱ୰࡟ṧࡗ࡚࠸ࡿࡢࡣࠊỈ⣲ࡢᅛ⁐㔞ࡀከࡃࠊᣑᩓࡀ㐜࠸࣮࢜ࢫࢸࢼ࢖ࢺ┦୰࡟Ꮡᅾࡋ࡚࠸ࡓࡓࡵ࡜᥎ᐹࡉࢀࡿࠋ ᅗ  ࡟ࡣࠊỈ⣲ࢳ࣮ࣕࢪᚋ࡟
㖟ࢹࢥ࣮ࣞࢩࣙࣥἲࢆ㏱㐣㠃࡟㐺⏝ࡋࡓሙྜࡢ 6(0 ീࢆ♧ࡍࠋ㖟⢏Ꮚࡢほᐹࡉࢀࡿ఩⨨ࡣࣇ࢙ࣛ࢖ࢺ┦ࠊ࢜−3−࣮ࢫࢸࢼ࢖ࢺ┦ࠊ┦⏺㠃࡛࠶ࡗࡓࠋࡲࡓࠊಖᣢ᫬㛫ࡀ㛗࠸᪉ࡀࠊほᐹࡉࢀࡿ㖟⢏Ꮚࡢᩘࡀከࡃ࡞ࡾࠊࡉࡽ࡟
࣮࢜ࢫࢸࢼ࢖ࢺ┦୰࡟⥺ୖ࡟㞟✚ࡍࡿഴྥࡀぢࡽࢀࡓࠋ」ᩘど㔝ࡢほᐹࢆ⾜࠸ࠊ㖟⢏ᏊࡢᏑᅾ఩⨨ࡢ௙ศࡅࢆ⾜࠺࡜ࠊỈ⣲ࢳ࣮ࣕࢪ࠿ࡽ㖟ࢹࢥ࣮ࣞࢩࣙࣥἲࢆ㐺⏝ࡍࡿࡲ࡛ࡢᐊ

ಖᣢ᫬㛫ࡀ K ࡢሙྜ࡛ࡣࠊࣇ࢙ࣛ

࢖ࢺ┦୰ࡀ ࠊ࣮࢜ࢫࢸࢼ࢖ࢺ┦୰ࡀ ࠊ┦⏺㠃ࡀ ࡛࠶ࡾࠊᐊ

ಖᣢ᫬㛫ࡀ K ࡢሙྜ࡟ࡣࠊ

ࣇ࢙ࣛ࢖ࢺ┦୰ࡀ ࠊ࣮࢜ࢫࢸࢼ࢖ࢺ┦୰ࡀ ࠊ┦⏺㠃ࡀ ࡜࡞ࡗࡓࠋಖᣢ᫬㛫ࡀ K ࡢሙྜ࡟ࡣ୺࡟ࣇ࢙ࣛ࢖ࢺ┦୰ࢆᣑᩓࡋ࡚཯ᑐ㠃ࡲ࡛Ỉ⣲ࡀ฿㐩ࡋࡓࡶࡢ࡜⪃࠼ࡽࢀࡿࠋ୍᪉࡛ࠊಖᣢ᫬㛫ࡀ K ࡜࡞ࡿ࡜ࠊࣇ࢙ࣛ࢖ࢺ┦୰ࡢỈ⣲ࡣ࡯࡜ࢇ࡝ࡀᨺฟࡉࢀ࡚ࡋࡲ࠸ࠊ࣮࢜ࢫࢸࢼ࢖ࢺ┦࠿ࡽᨺฟࡉࢀࡓỈ⣲ࡀ┤᥋ヨᩱ⾲㠃࡟฿㐩ࡍࡿࠊ࠶ࡿ࠸ࡣࣇ࢙ࣛ࢖ࢺ┦ࢆ௓ࡋ࡚ヨᩱ⾲㠃࡟฿㐩ࡋࡓࡇ࡜࡛ࠊᨺฟ఩⨨ࡢ๭ྜࡀኚ໬
ࡋࡓࡶࡢ࡜᥎ᐹࡉࢀࡿࠋ௒ᚋࡣᛂຊ㈇Ⲵࡋ࡞ࡀࡽỈ⣲ࡢᨺฟ఩⨨ࡢྍど໬ࢆ⾜࠸ࠊட⿣Ⓨ⏕࡜Ỉ⣲㞟✚㸦ྛ┦ࡢỈ⣲ศ㓄㸧ࡢ㛵ಀ࡟ࡘ࠸࡚ㄪᰝࡋ࡚࠸ࡃᚲせࡀ࠶ࡿࠋ
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ᅗ  Ỉ⣲ࢳ࣮ࣕࢪᚋ࡟␗࡞ࡿ᫬㛫ᐊಖᣢࡋࡓ஧┦ࢫࢸࣥࣞࢫ㗰⁐᥋㔠ᒓࡢỈ⣲ᨺฟ᭤⥺

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ᅗ  ∦㠃࠿ࡽỈ⣲ࢳ࣮ࣕࢪࡋ࡚཯ᑐ㠃࡛㖟ࢹࢥ࣮ࣞࢩࣙࣥἲࢆ㐺⏝ࡋࡓሙྜࡢ 6(0 ീ Ỉ⣲ࢳ࣮ࣕࢪ࠿ࡽ㖟ࢹࢥ࣮ࣞࢩࣙࣥࡲ࡛ࡢᐊ

ಖᣢ᫬㛫㸸 D K E K

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⤖ㄽ

ᮏ◊✲࡛ࡣࠊ஧┦ࢫࢸࣥࣞࢫ㗰⁐᥋㔠ᒓ࡟ᑐࡋ࡚ࠊ∦㠃࠿ࡽ㝜ᴟ㟁ゎἲ࡟ࡼࡾỈ⣲ࢆࢳ࣮ࣕࢪࡋࠊ཯ᑐ㠃࡛㖟ࢹࢥ࣮ࣞࢩࣙࣥἲࢆ㐺⏝ࡋࠊ㏱㐣ࡋ࡚ࡁࡓỈ⣲ࡢྍど໬ࢆヨࡳࡓࠋỈ⣲ࢳ࣮ࣕࢪࡋ࡚࠿ࡽ㖟ࢹࢥ࣮ࣞࢩ
ࣙࣥἲࢆ㐺⏝ࡍࡿࡲ࡛ࡢᐊ

࡛ࡢಖᣢ᫬㛫ࢆኚ໬ࡉࡏࡿ࡜ࠊỈ⣲ࡢᨺฟ఩⨨ࡀኚࢃࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ㸦ඛᑟⓗ㔜Ⅼㄢ㢟㸧

−4−Ỉ⣲⎔ቃୗ࡛ࡢ⑂ປࡁ⿣ᡂ㛗ࢩ࣑࣮ࣗࣞࢩࣙࣥゎᯒἲࡢᵓ⠏ᖇி኱Ꮫ ⥲ྜඛ➃◊✲ᶵᵓ ᶓᇼኖගࠊ⣆㇂ ṇࠊᑿ㛵 㒓•༡ᕤ⛉኱Ꮫ ኱ぢᩄோ㸦ᖇி኱Ꮫ ᐈဨ෸ᩍᤵ㸧㸯㸬⫼ᬒ࡜┠ⓗ௒ᖺᗘࡣࠊᶆ㢟ࡢ┠ⓗࢆ㐩ᡂࡍࡿࡓࡵ࡟ࠊᶓᇼࡢᥦ᱌ࡍࡿȘ࣐ࣝࢸ࢕ࣉࣜࢣ࣮ࢩࣙࣥἲࢆᇶ࡟ࡋ࡚ ࠊᮏ◊✲ࢢ࣮ࣝࣉ࡛㛤Ⓨࡋ࡚ࡁࡓ\ᙧ⁐᥋ᵓ㐀࡟ࡼࡿ෭༷㐣⛬࡛ࡢỈ⣲ᣑᩓゎᯒࣉࣟࢢ࣒ࣛ ࢆࠊ୺࡟ࠊቃ⏺᮲௳࡟ὀ┠ࡋ࡚⢭ᰝࡋࠊࡉࡽ࡟ࠊࡼࡾ㧗⢭ᗘࡢゎᯒ⤖ᯝࢆᚓࡿࡓࡵ࡟ᚲせ࡞᪉⟇࡟ࡘ࠸࡚ࠊ
᫂ࡽ࠿࡟ࡋࡓࠋ
ࡲࡓࠊࡁ⿣Ⓨ⏕ࡢࡳ࡞ࡽࡎࠊࡁ⿣ᡂ㛗ࢆᢅ࠺࣮ࣝࢳࣥࢆ㛤Ⓨࡍࡿࡓࡵ࡟ࠊỈ⣲⎔ቃୗ࡛⑂ປࡁ⿣ࡀ
ᡂ㛗ࡍࡿࢩ࣑࣮ࣗࣞࢩࣙࣥࣉࣟࢢ࣒ࣛࢆ㛤Ⓨࡋࠊᐇ㦂≉ᛶࢆணࡋᚓࡿ࠿࡝࠺࠿ࡢ᳨ウࡶ⾜ࡗࡓࠋ㸰㸬ᮏᖺᗘࡢ◊✲ᴫせ㸬\ ᙧ⁐᥋ᵓ㐀࡟ࡼࡿ෭༷㐣⛬࡛ࡢỈ⣲ᣑᩓゎᯒࣉࣟࢢ࣒ࣛࡢቃ⏺᮲௳ࡢ᳨ド
\ ᙧ⁐᥋ᵓ㐀࡛ࡣࠊᅗ  ࡟♧ࡍࡼ࠺࡟ࠊᩳࡵࡢ⮬⏤ቃ⏺㠃ࡀᏑᅾࡍࡿࠋࡇࢀ࡟ࡘ࠸࡚ࠊ௒ࡲ࡛ࡢゎᯒ࡛⏝࠸࡚ࡁࡓቃ⏺᮲௳ࢆᅗ D ࡟♧ࡍࠋእ⏺࠿ࡽࡢỈ⣲ὶฟධ㔞ࢆ㹶᪉ྥ࡜㹷᪉ྥ࡟ศࡅ࡚ቃ⏺᮲௳ࢆタᐃࡋࡓࠋᮏ᮶݄௫ ࠊ݄௬ ࡜ࡍ࡭ࡁ࡛࠶ࡿࡀࠊゎᯒࡢ⡆౽ࡉ࠿ࡽࠊᮏゎᯒ࡛ࡣ݄௫ ൌ ݄௬ ൌ ݄࡜ࡋ࡚ゎᯒࡋ࡚࠸ࡿࠋ ୍᪉ࠊᮏ᮶ࡢᩳࡵࡢቃ⏺᮲௳ࡣࠊᅗ㸰E ࡟♧ࡍࡼ࠺࡟ࠊ⮬⏤ቃ⏺㠃࡟ᑐࡋ࡚㖄┤᪉ྥࡢỈ⣲ࡢὶฟධ㔞ࢆ⪃៖ࡍ࡭ࡁ࡛࠶ࡿࠋ ࡇࢀ࡟ࡘ࠸࡚ࠊヲ⣽࡟᳨ドࡋࡓ⤖ᯝࠊᇶ♏ᘧ࡟㞳ᩓ໬ᘧ࡜ࡋ࡚ቃ⏺᮲௳ࢆᑟධࡍࡿ᫬࡟ࠊ݄௫ ൌ ݄௬ ൌ ݄ࡢሙྜ࡛ࡶ୧⪅࡛ࠊ࡯ࡰ㏆ఝⓗ࡟➼౯࡛࠶ࡾࠊ݄ሬԦ ൌ ൫݄௫ ǡ ݄௬ ൯࡜ࡋ࡚ࠊᩳࡵቃ⏺ࡢഴᩳゅᗘ࡟ᛂࡌ࡚ࠊ݄ሬԦࡢ
᪉ྥᡂศࠊ൫݄௫ ǡ ݄௬ ൯࡟ศ㓄ࡍࢀࡤࡼ࠸ࡇ࡜ࡀ♧ࡉࢀࡓࠋ

:HOG0HWDO$%DVH0HWDO
D ᮏゎᯒ࡛⏝࠸ࡓ⮬⏤ቃ⏺㠃࡛ࡢቃ⏺᮲௳ᮏ࡜ࡋ࡚࠸ࡿ䚹

'HWDLORI$

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:HOG0HWDO%DVH0HWDO

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E ⮬⏤ቃ⏺㠃ࡢ㖄┤᪉ྥ࡟Ỉ⣲ࡢὶฟධࢆ
⪃࠼ࡓቃ⏺᮲௳

ᅗ㸯\ ᙧ⁐᥋ᵓ㐀࡟࠾ࡅࡿᩳࡵࡢ⮬⏤ቃ⏺㠃ᅗ㸰 ᮏゎᯒ࡛⏝࠸ࡓቃ⏺᮲௳ D ࡜ᩳࡵࡢ⮬⏤ቃ⏺࡟㖄┤᪉ྥ࡟Ỉ⣲ࡀὶฟධࡉࡏࡿቃ⏺᮲௳ࠖ


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−5−

  せ⣲⣽ศ๭ࡢᚲせᛶ࡟ࡘ࠸࡚ࡢ᳨ウ    ᮏ◊✲ࢢ࣮ࣝࣉࡢゎᯒࡣࠊᅗ  ࡟♧ࡍࡼ࠺࡟ࠊ᭷㝈ᕪศἲ㸦⇕ఏᑟゎᯒࠊỈ⣲ᣑᩓゎᯒ㸧࡜᭷   㝈せ⣲ἲ㸦⇕ᛂຊゎᯒ㸧ࡢ  㐃ᡂゎᯒࢆ⾜ࡗ࡚࠾ࡾࠊ᭷㝈せ⣲ἲ࡟ࡼࡾᚓࡽࢀࡓ⇕ᛂຊࢆ⇕ఏᑟ ゎᯒ࠾ࡼࡧỈ⣲ᣑᩓゎᯒࢆ⾜࠺ᕪศ᱁ᏊⅬ࡬ࡢ⿵㛫ࡍࡿᢏ⾡࡟ຍ࠼࡚ࠊᘧ㸦㸯㸧 ࡟♧ࡍࡼ࠺࡟ࠊ ᛂຊ໙㓄㡯ࡀỈ⣲ᣑᩓࡢ㥑ືຊࡢ୍ࡘ࡟࡞ࡗ࡚࠸ࡿࡢ࡛ࠊ᭷㝈せ⣲ゎᯒ࡟ࡼࡾᚓࡽࢀࡿᛂຊศᕸ
ࡀ⁥ࡽ࠿࡞ศᕸ࡟࡞ࡿࡇ࡜ࡀせồࡉࢀࡿࠋࡑࡢࡓࡵ࡟ࡣࠊᛂຊゎᯒ࡟࠾࠸࡚ࠊ㞄᥋ࡍࡿ  せ⣲ࡢᖹᆒ್ࡀ  せ⣲ࡢ㔜ᚰࡢ఩⨨ࡢᛂຊ࡜ࡋࠊࡑࢀࡽࢆᕪศ᱁ᏊⅬ࡟⿵㛫ࡋ࡚࠸ࡿࠋడ஼డ௧ൌ ߙଵ ‫׏ܦ‬ଶ ‫ ܥ‬െ ߙଶ ‫ܦ‬ο௏ோ்‫׏‬ሺ‫ߪ׏ܥ‬௉ ሻ ൌ ߙଵ ‫׏ܦ‬ଶ ‫ ܥ‬െ ߙଶ ‫ܦ‬ο௏ோ்‫ ܥ׏‬ή ‫ߪ׏‬௉        㸦㸯㸧ࡑࡢࡓࡵ࡟ࠊᕪศ᱁ᏊⅬࡢᩘࡣ᭷㝈せ⣲ἲࡢ⠇Ⅼᩘࡼࡾᑡ࡞ࡃ࡞ࡿࡇ࡜࠿ࡽ௒ࡲ࡛ࠊ⁁ᗏ㒊࡟࠾࠸࡚ࠊᅗ㸲 D ࡟♧ࡍࡼ࠺࡟ࠊᕪศ᱁ᏊⅬࡣᕥྑ  Ⅼ࡜ࡋ࡚࠸ࡓࠋࡋ࠿ࡋࠊࡇࡢ㡿ᇦ࡛ࡢ⇕ᛂຊࡢኚືࡣࠊ࠿࡞ࡾ኱ࡁ࠸ࡓࡵࠊᐇ㦂࡟ࡼࡾᚓࡽࢀࡿỈ⣲⬤໬๭ࢀᣲືࢆࡼࡾṇ☜࡟ᢕᥱࡍࡿ
࡟ࡣࠊᕪศ᱁ᏊⅬ࡟⿵㛫ࡉࢀࡿᛂຊศᕸ࡟ࡘ࠸࡚ࠊࡼࡾヲ⣽࡞᝟ሗࡀᚲせ࡜ࡉࢀࠊࡇࡢ㡿ᇦ࡛
ᕪศ᱁ᏊⅬࢆᅗ㸲 E ࡟♧ࡍࡼ࠺࡟ቑຍࡉࡏࡿᚲせᛶࡀ♧ࡉࢀࡓࠋ
ࡑࡢ᪉⟇࡜ࡋ࡚ࠊ
㸯㸧༢⣧࡟ࠊᕪศ᱁ᏊⅬࢆቑຍࡉࡏࠊࡑࢀ࡜㐃ືࡋ࡚ࠊ᭷㝈せ⣲ἲ࡟ࡼࡿ⠇Ⅼᩘࡶቑຍࡉࡏࡿࠋ
㸦ࡇࡢሙྜࠊ ࡘࡢᕪศ᱁ᏊⅬ࡬ࡢᛂຊ⿵㛫࡟ࡣࠊࡑࢀ࡟ᛂࡌ࡚  ࡘࡢ᭷㝈せ⣲ࡀᚲせ࡜࡞ࡿࠋ㸧㸰㸧ᅗ㸳࡟♧ࡍࡼ࠺࡟ࠊᕪศゎᯒࡔࡅ \ ᙧ⁁㒊㏆ഐ㡿ᇦ࡟⤠ࡗ࡚ヲ⣽࡞ゎᯒࢆ⾜࠺ࠋ᫖ᖺᗘࡢ᳨ウ࡛ࠊ࡝ࡕࡽࡢ᪉ἲ࡛ࡶࠊ኱ࡁ࡞ኚ᭦Ⅼࡣ࡞ࡃゎᯒ࡛ࡁࡿࡇ࡜ࡀ♧ࡉࢀࠊ㸯㸧࠾ࡼࡧ㸰㸧ࡢ㡰␒࡛ゎᯒࢆヨࡳࡿࠋ䝕䞊䝍ධຊ䠄⇕ఏᑟ䚸⇕ᛂຊゎᯒ䚸Ỉ⣲ᣑᩓ䠅⇕ఏᑟゎᯒ↓ḟඖ໬᫬㛫้䜏ᖜ䛾Ỵᐃ䛸ᕪศゎᯒỈ⣲ᣑᩓ᭷ḟඖ᫬㛫ቑศ್䛻┦ᙜ䛩䜛᫬㛫䛷䛾 ᗘ䜢⿵㛫ἲ䛷ồ䜑䜛䚹

ᕪศ᱁ᏊⅬ䛷䛾 ᗘ䜢ྛ᭷㝈せ⣲㔜ᚰⅬ䜈⿵㛫᭷㝈せ⣲ἲ䛻䜘䜛⇕ᛂຊゎᯒᗘኚ໬䛻䜘䜛䝲䞁䜾⋡䚸㝆అᛂຊ䛾ኚ໬䜢⪃៖䛧䛯ゎᯒ᭷㝈せ⣲䛻䜘䜚ᚓ䜙䜜䜛ᛂຊ್䜢ᕪศ᱁ᏊⅬ䜈⿵㛫ᕪศἲ䛻䜘䜛Ỉ⣲ᣑᩓゎᯒᗘኚ໬䛻䜘䜛ᣑᩓಀᩘ䛾ኚ໬䜢⪃៖䛧䛯ゎᯒƚсƚнȴƚᅗ㸱 ⇕ఏᑟ㸦᭷㝈ᕪศἲ㸧ࠊ⇕ᛂຊ㸦᭷㝈せ⣲ἲ㸧࠾ࡼࡧỈ⣲ᣑᩓ㸦᭷㝈ᕪศἲ㸧 㐃ᡂᩘ್ゎᯒࣇ࣮ࣟࢳ࣮ࣕࢺ



−6−

;ďͿǇᆺ⁐᥋ᵓ㐀⁁ᗏ㒊䛾Ỉ⣲⃰ᗘศᕸ䜢ồ䜑䜛
ᕪศ᱁ᏊⅬ;ĂͿ ᚑ᮶䛾Ǉᆺ⁐᥋ᵓ㐀⁁ᗏ㒊䛾ᕪศ᱁ᏊⅬᅗ㸲 \ ᙧ⁐᥋ᵓ㐀⁁ᗏ㒊ࡢỈ⣲ᣑᩓゎᯒᕪศ᱁ᏊⅬࡢ⣽ศ๭ࡢ᳨ウᕪศゎᯒ㡿ᇦ䠄⇕ఏᑟ䛚䜘䜃Ỉ⣲ᣑᩓゎᯒ䠅

⁐᥋㔠ᒓ



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᭷㝈せ⣲ᛂຊゎᯒ㡿ᇦ䠄⇕ᛂຊ䠅ᅗ㸳 ᕪศゎᯒࡔࡅ \ ᙧ⁁㒊㏆ഐ㡿ᇦ࡟⤠ࡗ࡚ヲ⣽࡞ゎᯒࢆ⾜࠺ࣔࢹࣝᅗ
㸬Șἲ࡟ᇶ࡙ࡃỈ⣲⎔ቃୗ࡛ࡢ⑂ປࡁ⿣ᡂ㛗ࢩ࣑ࣗࣞ̿ࣥゎᯒ   ᮏ⠇ࡢゎᯒࡣࠊỈ⣲⎔ቃࡢᙳ㡪ࢆධࢀ࡚ࠊࡁ⿣ࡀᡂ㛗ࡍࡿ࢔ࣝࢦࣜࢬ࣒ࡢᵓ⠏ࡢᇶ♏࡜ࡋ࡚ᮏㄢ㢟࡜ࡶ῝ࡃ㛵ಀࡋࠊࡲࡓᕤᏛⓗ࡟ࡶ㔜せ࡞ၥ㢟࡛ࡶ࠶ࡿࡇ࡜࠿ࡽ⾜ࡗࡓࠋ௨ୗ࡟⤖ᯝࡢᴫせࢆグ㍕ࡍࡿࠋᩘ್ゎᯒࣔࢹࣝࢆᅗ  ࡟♧ࡍࠋࡇࡢࣔࢹࣝࢆ⏝࠸࡚ᩘ್ゎᯒࢆ⾜࠸ࠊ኱Ẽ୰࡜Ỉ⣲⎔ቃୗ࡛ࡢᮏࢩ࣑࣮ࣗࣞࢩࣙࣥゎᯒ࠿ࡽᚓࡽࢀࡓ⑂ປࡁ⿣ᡂ㛗㏿ᗘࡢ⤖ᯝࢆᅗ  ࡟ࡋࡵࡍࠋ
ࡲࡓࠊ✀ࠎࡢ㈇Ⲵᛂຊ⧞㏉ࡋ㏿ᗘ࡛ゎᯒࢆ⾜࠸ࠊ⑂ປࡁ⿣ᡂ㛗㏿ᗘࡀ᭱⤊◚ቯ㡿ᇦ࡟⮳ࡿ๓ࡢᖹᆒ⑂ປࡁ⿣ᡂ㛗㏿ᗘ࡜㈇Ⲵ⧞㏉ࡋ㏿ᗘ࡜ࡢ㛵ಀࢆᅗ  ࡟♧ࡍ  ࠋᮏ⤖ᯝ࠿ࡽࠊỈ⣲⎔ቃୗ࡛ࡣࠊ⑂ປࡁ⿣ᡂ㛗ࡀຍ㏿ࡉࢀࠊ࠿ࡘࠊ㈇Ⲵ⧞㏉ࡋ㏿ᗘ࡜ࡁ⿣ᡂ㛗㏿ᗘ࡜ࡢ㛵ಀࡀᐇ㦂≉ᛶ࡜ࡁࢃࡵ࡚ࡼࡃ୍⮴ࡍࡿࡇ࡜ࡀ♧ࡉࢀࡓ  ࠋ௨ୖࡢ⤖ᯝ࠿ࡽࠊࡁ⿣ᡂ㛗ண ࡟ࡶᮏゎᯒࡣ㐺⏝࡛ࡁࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋ

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−7−


ᅗ㸴Ỉ⣲⎔ቃୗ࡛ࡢ⑂ປࡁ⿣ᡂ㛗ࢩ࣑࣮ࣗࣞࢩࣙࣥࣔࢹࣝ  ŵŵͬĐǇĐůĞ

ϭϬ
Ỉ⣲⎔ቃ

ϭ
Ϭ͘ϭ

኱Ẽ୰

Ϭ͘Ϭϭ
Ϭ͘ϬϬϭ
ϱϬ

ϭϬ

ϭϬϬ


ᅗ㸵ᮏࢩ࣑࣮ࣗࣞࢩࣙࣥゎᯒ࡟ࡼࡾᚓࡽࢀࡓࠊỈ⣲⎔ቃ࠾ࡼࡧ኱Ẽ୰࡛ࡢ⑂ປࡁ⿣ᡂ㛗㏿ᗘ≉ᛶࠋ   Ǽ. ࡢ࡭ࡁ஌ࡢᣦᩘࡀᐇ㦂≉ᛶ࡜ᐃ㔞ⓗ࡟୍⮴ࡋ࡚࠸ࡿ  ࠋ
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−8−

;ĚĂͬĚEͿŵĞĂŶ


GDG1 PHDQ ࡜ ⧞㏉ࡋ㏿ᗘࠊI࡜ࡢ㛵ಀ㸦ࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝ㸧ϭĂƚŵŽƐƉŚĞƌŝĐĐŽŶĚŝƚŝŽŶϬ͘ϭĨсϲyϭϬͲϱ ,ǌ^^Zdヨ㦂㡿ᇦϴ͕ϵͿపྜ㔠ƌͲDŽ㗰䠄䠯䠟䠩䠐✀䠅ͳͲͲͲ⣭㧗ᙉᗘ㗰䛾ᐇ㦂⤖ᯝͳͲሻĨсϭ͘ϲϳyϭϬͲϭ ,ǌ

Ϭ͘Ϭϭ
Ϭ͘ϬϬϭ

Ϭ͘Ϭϭ

Ϭ͘ϭ

ϭ ϴͿ኱ᮧ䚸ᐑཎ䚸௝Ἴ䚸஬༑ᔒ䚸 ᖹ⏣䚸:,W/͕ϰϲ͕;ϮϬϬϴͿ͕ƉƉ͘ϮϬϱͲϵͿ኱ᮧ䚸ᑠᯘ䚸ᐑཎ䚸ᕤ⸨䚸 ᮦᩱ䛸⎔ቃ;ϮϬϬϲͿ
㻝㻜㻕㻌ᶓᇼ㸦ኖ㸧ࠊᶓᇼ㸦Ṋ㸧㻘ᑠ⃈ࠊ㧗㡲ࠊᶵㄽࠊ㻡㻟㻘㻔㻝㻥㻤㻣㻕㼜㼜㻚㻝㻡㻠㻝㻙㻝㻡㻠㻥ᅗ㸶 Ỉ⣲⎔ቃୗ࡛ࡢ⑂ປࡁ⿣ᡂ㛗㏿ᗘ࡜㈇Ⲵᛂຊ⧞ࡾ㏉ࡋ㏿ᗘࠊI ࡜ࡢ㛵ಀࠋI ࡢ࡭ࡁ஌ࡢᣦᩘ࠾ࡼࡧ⑂ປࡁ⿣ᡂ㛗㏿ᗘࡢ I ≉ᛶࡀ㣬࿴ࡍࡿ I 㡿ᇦࡀᐇ㦂⤖ᯝ࡜ࡼࡃ୍⮴ࡍࡿ  ࠋ㸱㸬⤖ㄽ㸯㸧⮬⏤ቃ⏺᮲௳ࡢ᳨ドࢆ⾜࠸ࠊ௒ࡲ࡛ࡢᐃᘧ໬࡛㏆ఝⓗ࡟ࠊ࡯ࡰၥ㢟࡞࠸ࡀࠊ௒ᚋࠊ[ ᪉ྥࠊ\ ᪉ྥ࡟ᑐࡋ࡚ቃ⏺ࡢഴᩳゅᗘ࡟ᛂࡌ࡚ࠊ᪉ྥᡂศ࡜ࡋ࡚ K[K\ ࡞ࡿ್ࢆ⏝࠸ࡿࡇ࡜ࡀ᥎ዡࡉࢀࡓࠋ
㸰㸧\ ᙧ⁐᥋ᵓ㐀ࡢ⁁ᗏ㒊ࡢ⣽ศ๭ࡢᡭἲ࡟ࡘ࠸࡚ࠊ⪃ᐹࡋࡓࠋ
㸱㸧ᐇ㦂⤖ᯝࢆண ࡋᚓࡿࠊỈ⣲⎔ቃୗ࡛ࡢ⑂ປࡁ⿣ᡂ㛗ࢩ࣑࣮ࣗࣞࢩࣙࣥゎᯒἲ࡜ゎᯒࣉࣟࢢࣛ
࣒ࢆᵓ⠏ࡋࠊࡁ⿣ᡂ㛗ࢆྲྀࡾ㎸ࢇࡔࣉࣟࢢ࣒ࣛ㛤Ⓨࡢᇶ┙ࢆᵓ⠏࡛ࡁࡓࠋ
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㛤Ⓨ䚸䛚䜘䜃⥅ᡭ䛾ᑟ㟁ᛶホ౯䛻䜘䛳䛶䚸ᙜヱᢏ⾡䛾ඃ䜜䛯⥅ᡭಙ㢗ᛶ䜢ᐇド䛷䛝䛯䚹ḟ䛻䝥䝻䝉䝇䛾ほⅬ䛛䜙䛿䚸㻯㼡㻙㻺㼕 ྜ㔠䜑䛳䛝䛻䜘䜛୕ḟඖᵓ㐀⭷䛾๰ฟ䛸䛭䜜䜢⏝䛔䛯᥋╔䝥䝻䝉䝇䜢᳨ウ䛧䚸㔠ᒓ㻛㻯㻲㻾㼀㻼 ⥅ᡭ䛾⑂ປ≉ᛶ䛾ྥୖ䜢♧䛧䛯䚹䜎䛯ホ౯䛾ほⅬ䛛䜙䛿䚸㻿㻼㼞㼕㼚㼓㻙㻤 䛾ᨺᑕග 㼄 ⥺䜢⏝䛔䜛᪂つ୕ḟඖ 㼄㻾㻰 㢧ᚤ㙾ἲ䛻䜘䜚䚸኱㠃✚䛿䜣䛰᥋ྜ㒊䛻㛵䛩䜛㠀◚ቯ䛷䛾⤖ᬗ᪉఩䝬䝑䝢䞁䜾䛜ྍ⬟䛷䛒䜛䛣䛸䜢ᐇド䛧䛯䚹䛣䛾䜘䛖䛻䚸ᙜ◊✲ᡤ䛜୰ᚰ䛸䛺䛳䛶ᮦᩱ䞉䝥䝻䝉䝇䞉ホ౯䛾㐃ᦠ◊✲䛜኱䛔䛻㐍ᒎ䛧䛶䛔䜛䚹ḟᖺᗘ䛻ྥ䛡䛶䛣䜜䜙䛾◊✲䜢䛥䜙䛻᥎㐍䛩䜛䛣䛸䛻䜘䛳䛶䚸䝬䜲䜽䝻᥋ྜ㒊ෆ䛻≉␗䛺ᵓ㐀䜢๰ฟ䛧ᶵ⬟ྥୖ䜢ᐇ⌧䛷䛝䜛᪂つᮦᩱ䞉䝥䝻䝉䝇䞉ホ౯ᢏ⾡䛾㛤Ⓨ䜢᥎㐍䛧䛶䛔䛟䚹㻌㻌ࡵࡗࡁࢆ⏝࠸ࡓ 63&& ࡜ &)573 ࡢ᥋ྜ࡟࠾ࡅࡿ࢞ࣝࣂࢽࢵࢡ⭉㣗ᣲືࡢホ౯⩌㤿኱Ꮫ኱Ꮫ㝔⌮ᕤᏛᗓ▱⬟ᶵᲔ๰〇㒊㛛ᑠᯘ ❳ஓ㸯㸬┠ⓗᆅ⌫⎔ቃࡢಖㆤ࡟ࡣ㸪஧㓟໬Ⅳ⣲᤼ฟ㔞ࡢ๐ῶࡀḞ࠿ࡏ࡞࠸ㄢ㢟࡛࠶ࡿ㸬ࡇࡢ┠ᶆࢆ㐩ᡂࡍࡿࡓࡵ࡟ࡣ㸪㍺㏦ᶵჾࡢ⇞㈝ຠ⋡ࡢྥୖࡀᚲ㡲࡛࠶ࡾ㸪≉࡟㌴యࡢ㍍㔞໬ࡀ㔜せ࡞ྲྀࡾ⤌ࡳ࡜ࡋ࡚ㄆ㆑ࡉࢀ࡚࠸ࡿ>@㸬㌴యࡢ㔜㔞ࢆ㍍ῶࡍࡿຠᯝⓗ࡞᪉ἲࡢ୍ࡘ࡜ࡋ࡚㸪㌴య㗰ᯈࡢ୍㒊ࢆࡼࡾ㍍㔞࡞ᮦᩱ࡬⨨ࡁ᥮࠼ࡿࡇ࡜ࡀᣲࡆ
ࡽࢀࡿ㸬㏆ᖺ㸪㍍㔞໬࡟㈉⊩ࡍࡿᮦᩱ࡜ࡋ࡚㸪㧗ᙉᗘ࠿ࡘ㧗ᙎᛶ࡛㸪⏕⏘ᛶࢆවࡡഛ࠼ࡓ⇕ྍረᛶⅣ⣲⧄⥔ᙉ໬ᶞ⬡ &DUERQILEHUUHLQIRUFHGWKHUPRSODVWLF&)573 ࡢ౑⏝ࡀ᳨ウࡉࢀ࡚࠸ࡿ㸬ࡇࡢ࣐ࣝࢳ࣐ࢸࣜ࢔ࣝ໬ࡢ㐣⛬࡛㸪㔠ᒓᮦᩱ࡜ &)573 ࢆ᥋ྜࡍࡿ᪉ἲ࡜ࡋ࡚㸪ࡵࡗࡁ⭷ࡢ⾲㠃พฝࢆ฼⏝ࡋࡓ࢔࣮ࣥ࢝ຠᯝ࡟ࡼࡿ᥋ྜࢆ
᳨ウࡋࡓ>@㸬ࡵࡗࡁࢆ⏝࠸ࡿࡇ࡜࡛㸪ᮦᩱྠኈࡢ┤᥋ࡢ᥋ゐࢆ㜵ࡄࡓࡵ㸪㔠ᒓᮦᩱ࡜ &)573 ࡟ྵ᭷ࡍࡿⅣ⣲⧄⥔㛫࡛㉳ࡇࡾ࠺ࡿ࢞ࣝࣂࢽࢵࢡ⭉㣗ࢆᢚไࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪ୗᆅ 1L ࡵࡗࡁ≉Ṧ 1L&X ྜ㔠ࡵࡗࡁࢆ᪋ࡋࡓ෭㛫ᅽᘏ㗰ᯈ 63&& ࡜ &)573 㛫ࡢ࢞ࣝࣂࢽࢵ
ࢡ㟁ὶ ᐃ࠾ࡼࡧヨ㦂ᚋࡢ⭉㣗㒊ほᐹࢆᐇ᪋ࡋࡓ㸬ࡉࡽ࡟㸪ࡵࡗࡁࢆ᪋ࡋࡓ 63&& ࡀ⭉㣗ࡉࢀࡿせᅉࢆ≉ᐃࡋ㸪ࡑࡢᨵၿ⟇ࢆ᳨ウ࠾ࡼࡧホ౯ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬㸰㸬◊✲᪉ἲ ౪ヨᮦ࡜ࡋ࡚㸪&)573 ᶞ⬡3$㸪[[PP ࠾ࡼࡧ 63&& [[PP ࢆ⏝࠸ࡓ㸬ࡵࡗࡁ㠃✚ࡣ [PP ࡜ࡋ㸪&)573 ࠾ࡼࡧࡵࡗࡁ๓ࡢ 63&& ࡢ⾲㠃ࢆ ࡲ࡛⪏Ỉ◊☻⣬࡟ࡼࡗ࡚◊☻ࡋࡓ㸬ࡣࡌࡵ࡟㸪࢘ࢵࢻᾎ 1L&O㺃+2J/㸪+&OPO/ ࢆ⏝࠸࡚ 63&& ⾲㠃࡟ୗᆅ 1L ࡵࡗࡁࢆ᪋ࡋࡓ㸬ࡵࡗࡁ᮲௳ࡣ㟁ὶᐦᗘ P$FP[ ࡵࡗࡁ᫬㛫 PLQ㸪P$FP[PLQ ࡢ  ᮲௳࡜ࡋࡓ㸬ḟ࡟㸪ୗᆅ 1L ࡵࡗࡁࢆ᪋ࡋࡓ 63&& ࡟≉Ṧ 1L&X ྜ㔠ࡵࡗࡁ &X62㺃+2J/㸪 +162 1L㺃+2J/㸪+%2J/㸪&+11D26㺃+2J/ ࢆ⏕ᡂࡋࡓ㸬ࡵࡗࡁ᮲௳ࡣ P$FP[PLQ ࡜ࡋࡓ㸬ࡵࡗࡁᚋࡢヨᩱ࡟ᑐࡋ㸪&X ࣮ࣜࢻ⥺ࢆ᥋ྜࡋ㸪ࡵࡗࡁ㒊⾲㠃ࢆṧࡋ࡚ࢩࣜࢥ࣮࡛ࣥ⤯⦕⿕⭷ࢆ᪋ࡋࡓ㸬࢞ࣝࣂࢽࢵࢡ㟁ὶ ᐃ࡟ࡣ ໭ᩯ㟁ᕤ〇㟁Ẽ໬Ꮫ ᐃࢩࢫࢸ࣒ += ࢆ⏝࠸ࡓ㸬PRO/ ࡢ 1D&O Ỉ⁐ᾮ PO ࢆྵࡴࣅ࣮࣮࢝࡟ &)573 ࡜ 63&& ࢆධࢀ&)573 ࢆṇᴟ㸪63&& ࢆ㈇ᴟ࡟᥋⥆ࡋ㸪୧ᴟ㛫࡟ὶࢀࡿ࢞ࣝࣂࢽࢵࢡ㟁ὶࢆ ᐃࡋࡓ㸬 ᐃ᮲௳ࡣ㸪኱Ẽ㛤ᨺ࠾ࡼࡧᾮ㟼Ṇୗ࡜ࡋ㸪ᾐₕ᫬㛫 aK ࡛ࡣ ႏ㸪aK ࡛ࡣ ႏ㸪aK ࡛ࡣ෌ᗘ ႏ࡜࡞ࡿࡼ࠺࡟ᾮ ࢆไᚚࡋࡓ㸬ࡲࡓ㸪࢞ࣝࣂࢽࢵࢡ㟁ὶ ᐃ๓ᚋࡢヨᩱ࡟ࡘ࠸࡚㸪)(6(0 ࢆ⏝࠸࡚⾲㠃ほᐹࢆ⾜ࡗࡓ㸬ࡉࡽ࡟ᮏ◊✲࡛ࡣ㸪࢘ࢵࢻᾎࢆ⏝࠸࡚⏕ᡂࡋࡓୗᆅ 1Lࡵࡗࡁ࡟๭ࢀࡀ⏕ࡌ㸪63&& ࡀ㟢ฟࡋ࡚࠸ࡿྍ⬟ᛶࡀ♧၀ࡉࢀࡓ㸬ࡑࡢࡓࡵ㸪ࡵࡗࡁ๭ࢀࡢᑐ⟇࡜ࡋ࡚㸪ࡵࡗࡁࡢ⓶⭷ᛂຊࡀపࡃ๭ࢀࡀ⏕ࡌ࡟ࡃ࠸ࢫࣝࣇ࢓࣑ࣥ㓟 1L ᾎ +162 1L㺃+2J/㸪+%2J/㸪&+11D26㺃+2J/ ࢆ⏝࠸࡚ୗᆅ 1L ࡵࡗࡁࢆ⏕ᡂࡋ㸪ྠᵝࡢホ౯ࢆ⾜ࡗࡓ㸬࡞࠾㸪ࡵࡗࡁ᮲௳ࡣ 
P$FP[PLQ ࡢࡳ࡜ࡋࡓ㸬㸱㸬⤖ᯝ ᅗ㸯࡟࢘ࢵࢻᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1L ࡵࡗࡁ≉Ṧ 1L&X ྜ㔠ࡵࡗࡁࡢ᭷↓࡟࠾ࡅࡿ 63&& ࡜ &)573 㛫ࡢ࢞ࣝࣂࢽࢵࢡ㟁ὶࡢ⤒᫬ኚ໬ࢆ♧ࡍ㸬ࡇࢀࡼࡾ㸪ᾐₕ᫬㛫 aK㸪ᾮΥࡢ᮲௳࡟࠾࠸࡚㸪ࡵࡗࡁࢆ᪋ࡋ

ࡓ 63&& ࡣࡵࡗࡁᮍฎ⌮࡜ẚ㍑ࡋ࢞ࣝࣂࢽࢵࢡ㟁ὶࡣపୗࡋࡓࡀ㸪౫↛࡜ࡋ࡚⭉㣗ᣲືࢆ♧ࡍࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡉࡽ࡟㸪⭉㣗ヨ㦂ᚋࡢヨᩱ⾲㠃ࢆほᐹࡋࡓ⤖ᯝ㸪ࡵࡗࡁ⭷ୖ࡟Ỉ㓟໬㕲࡜ぢࡽࢀࡿ㉥〓Ⰽࡢ⭉㣗≀ࡀᙧᡂࡉࢀ࡚࠸ࡿࡇ࡜ࢆ☜ㄆࡋࡓ㸬ࡇࢀࡣ㸪63&& ࡀ㟢ฟࡋ࡚࠸ࡓࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿ㸬ᅗ  ࡟ྛ 1L ࡵࡗࡁᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1L ࡵࡗࡁ⾲㠃ࡢ )(6(0 ほᐹ⤖ᯝࢆ♧ࡍ㸬࢘ࢵࢻᾎ࠿ࡽ⏕ᡂࡋࡓ− 11 −

ୗᆅ 1L ࡵࡗࡁࡣ㸪ከᩘࡢ๭ࢀࡸ๤ࡀࢀࡀほᐹࡉࢀࡓ㸬ࡇࢀࡼࡾ㸪1L ࡵࡗࡁࡢ⏕ᡂ≧ែࡀせᅉ࡛ 63&& ࡀ㟢ฟࡋ⭉㣗ࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬୍᪉࡛㸪ࢫࣝࣇ࢓࣑ࣥ㓟 1L ᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ
1L ࡵࡗࡁࡣ㸪๭ࢀࡀᑡ࡞࠸ࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡇࡢࡇ࡜࠿ࡽ㸪ࢫࣝࣇ࢓࣑ࣥ㓟 1L ᾎ࠿ࡽୗᆅ 1L ࡵࡗࡁࢆ⏕ᡂࡍࡿࡇ࡜࡛㸪
63&& ࡢ⪏㣗ᛶࡀྥୖࡍࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡇࢀࢆ᳨ドࡍࡿࡓࡵ࡟㸪࢞ࣝࣂࢽࢵࢡ㟁ὶ ᐃࢆᐇ᪋ࡋࡓ㸬ᅗ  ࡟ྛ 1L ࡵࡗࡁᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1L ࡵࡗࡁ1L&X ྜ㔠ࡵࡗࡁࡢ᭷↓࡟࠾ࡅࡿ 63&& ࡜ &)573 㛫ࡢ࢞ࣝࣂࢽࢵࢡ㟁ὶࡢ⤒᫬ኚ໬ࢆ♧ࡍ㸬ᾐₕ᫬㛫 aK㸪ᾮΥࡢ᮲௳࡟

࠾࠸࡚㸪࢘ࢵࢻᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1L ࡵࡗࡁࡢヨᩱ&)573 ࡢ࢞ࣝࣂࢽࢵࢡ㟁ὶࡣȝ$FP ࠿ࡽȝ$FP ࡟ୖ᪼ࡋࡓࡢ࡟ᅗ  ࡵࡗࡁ᭷↓࡟࠾ࡅࡿ 63&&&)573 㛫ࡢ࢞ࣝࣂࢽࢵࢡ㟁ὶࡢẚ㍑

ᑐࡋ㸪ࢫࣝࣇ࢓࣑ࣥ㓟 1L ᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1L ࡵࡗࡁࡢヨ࣑ࣥ㓟 1L ᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1L ࡵࡗࡁࡢヨᩱࡣ࢞ࣝࣂࢽࢵ

>@ᩱ&)573 ࡣȝ$FP ㏆ഐ࡛᥎⛣ࡋࡓ㸬ࡇࢀࡼࡾ㸪ࢫࣝࣇ࢓ࢡ⭉㣗ࡀᢚไࡉࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬ࡇࢀࡣ㸪ୗᆅ 1Lࡵࡗࡁࡢ๭ࢀࡀῶᑡࡋࡓࡇ࡜࡛ 63&& ࡢ㟢ฟࢆᢚไࡋ㸪⪏㣗ᛶࡀྥୖࡋࡓ࡜⪃࠼ࡽࢀࡿ㸲㸬⤖ㄽ ᮏ◊✲࡛ࡣ㸪ୗᆅ 1L ࡵࡗࡁ≉Ṧ 1L&X ྜ㔠ࡵࡗࡁࢆ᪋ࡋࡓ
63&& ࡜ &)573 㛫ࡢ࢞ࣝࣂࢽࢵࢡ⭉㣗ᣲື࡜⭉㣗せᅉࢆ㟁Ẽ໬Ꮫ ᐃ࡜ヨᩱほᐹ࡟ࡼࡗ࡚ㄪᰝࡋࡓ㸬ࡲࡓ㸪63&& ࡢ⭉㣗ࢆᢚไࡍࡿ᪉ἲࢆ᳨ウࡋࡓ㸬௨ୗ࡟ᚓࡽࢀࡓᡂᯝࢆ♧ࡍ㸬ᅗ  ྛ 1L ࡵࡗࡁᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1Lࡵࡗࡁ⭷⾲㠃ࡢ஧ḟ㟁Ꮚീ  㟁Ẽ໬Ꮫ ᐃ⤖ᯝࡼࡾ㸪࢘ࢵࢻᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1L ࡵࡗࡁ≉Ṧ 1L&X ྜ㔠ࡵࡗࡁࢆ᪋ࡋࡓ 63&& ࡣ㸪ࡵࡗࡁᮍฎ⌮࡜ẚ㍑ࡋ࢞ࣝࣂࢽࢵࢡ㟁ὶࡣపୗࡋࡓࡀ㸪౫↛࡜ࡋ࡚⭉㣗ᣲືࢆ♧ࡋࡓ㸬  ୗᆅ 1L ࡵࡗࡁࡢ⾲㠃ほᐹࡼࡾ㸪࢘ࢵࢻᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1L ࡵࡗࡁ࡛ࡣ㸪๭ࢀ࠾ࡼࡧ๤ࡀࢀࡀほᐹࡉࢀࡓ㸬୍᪉㸪ࢫࣝࣇ࢓࣑ࣥ㓟 1L ᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1L ࡵࡗࡁࡣ๭ࢀࡀᑡ࡞
࠸ࡇ࡜ࢆ☜ㄆࡋࡓ㸬  ࢫࣝࣇ࢓࣑ࣥ㓟 1L ᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1L ࡵࡗࡁࡢヨᩱ࡛ࡣ㸪࢘ࢵࢻᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1L ࡵࡗࡁࡢヨᩱ࡜ẚ㍑ࡋ㸪࢞ࣝࣂࢽࢵࢡ㟁ὶࡀῶᑡࡋࡓ㸬ᅗ  ྛ 1L ࡵࡗࡁᾎ࠿ࡽ⏕ᡂࡋࡓୗᆅ 1Lࡵࡗࡁ࡟࠾ࡅࡿ࢞ࣝࣂࢽࢵࢡ㟁ὶࡢẚ㍑

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0HWDO0DWHULDODQG&)5733URFHHGLQJVRI0DWH  
䠄ඛᑟⓗ㔜Ⅼㄢ㢟䠅− 12 −

ᨺᑕග ; ⥺ᅇᢡ䛻䜘䜛䝟䝽䞊䝰䝆䝳䞊䝹ྥ䛡䛿䜣䛰᥋ྜ䛾኱㠃✚㠀◚ቯ᪉఩䝬䝑䝢䞁䜾⌮໬Ꮫ◊✲ᡤ㻌 ᨺᑕග⛉Ꮫ◊✲䝉䞁䝍䞊㻌 㻌 ᯘ㻌 㞝஧㑻㻌 ┠ⓗ㻌 㟁ື໬䛾䜻䞊䝁䞁䝫䞊䝛䞁䝖䛷䛒䜛䝟䝽䞊䝰䝆䝳䞊䝹䛷䛿䚸䝟䝽䞊⣲Ꮚ䛻᭱㏆᥋䛧䛶䛔䜛䝎䜲䝪䞁䝗㒊䛜኱䛝䛺ᗘኚ໬䛻⧞䜚㏉䛧䛥䜙䛥䜜䜛䚹䝟䝽䞊䝰䝆䝳䞊䝹䛾䝎䜲䝪䞁䝗㒊䛻⏝䛔䜙䜜䜛䛿䜣䛰䛾ಙ㢗ᛶホ౯䛻䛿㟁Ꮚ⥺ᚋ᪉ᩓ஘ᅇᢡ䠄(OHFWURQ EDFNVFDWWHU GLIIUDFWLRQ (%6'䠅䛻䜘䜛⤖ᬗ᪉఩㢧ᚤ㙾ἲ䠄2ULHQWDWLRQ PLFURVFRS\ 20䠅䛜᭷⏝䛷䛒䜛䛣䛸䛜ᗈ䛟▱䜙䜜䛶䛔䜛䚹䛧䛛䛧䚸(%6'20 䛷䛿䝟䝽䞊䝰䝆䝳䞊䝹䜢◚᩿䛧䛶䝎䜲䝪䞁䝗㒊䜢ほᐹ䛩䜛ᚲせ䛜䛒䜛䛯䜑䚸⧞䜚㏉䛧⇕ᛂຊ䛻䜘䜛䛿䜣䛰䛾⑂ປ䞉ຎ໬ᣲື䜢㏣㊧ほᐹ䛩䜛䛣䛸䛜䛷䛝䛺䛔䚹䝟䝽䞊䝰䝆䝳䞊䝹ෆ㒊䛻䛚䛡䜛䛿䜣䛰䛾⑂ປ䞉ຎ໬ᣲື䜢㠀◚ቯ䛷ほᐹ䛩䜛䛣䛸䛜䛷䛝䜜䜀䚸ຎ໬ရ䛾ึᮇ≧ែ䛾ᢕᥱ䚸⑂ປ䞉ຎ໬䛾㉳Ⅼ䛸䛺䜛ᙅⅬ䛾ᢳฟ䜔䚸⑂ປ䞉ຎ໬ᶵᵓ䛾ゎ᫂䛺䛹䚸ಙ㢗ᛶྥୖ䛻ᴟ䜑䛶᭷⏝䛷䛒䜛䚹ᮏ◊✲䛷䛿 ; ⥺ᅇᢡ䠄;UD\GLIIUDFWLRQ;5'䠅䜢⏝䛔䛶䛭䜜䜢ྍ⬟䛸䛩䜛㠀◚ቯ 20䠄;5'20䠅䛾ᐇ⌧䜢┠ᣦ䛧䛶䛔䜛䚹 ḟඖ ;5' 㢧ᚤ㙾ἲ䠄'LPHQVLRQDO;5'PLFURVFRS\';5'䠅䛿ᨺᑕග ; ⥺䜢⏝䛔䛶  ḟඖ㠀◚ቯ䛷ከ⤖ᬗヨᩱෆ㒊䛾⤖ᬗ᪉఩䝬䝑䝢䞁䜾䜢ྍ⬟䛻䛧䛯᪂䛧䛔ᡭἲ䛷䛒䜚 ;5'20 䛾ᐇ⌧䛻᭷ຊど䛥䜜䛶䛔䜛䚹ᡃ䚻䛿䝟䝽䞊䝰䝆䝳䞊䝹ᵓ㐀య䛾䜘䛖䛺ᖹᯈ≧ヨᩱ䜈 ;5'20 䜢㐺⏝䛩䜛䛣䛸䛜䛷䛝䜛ᡭἲ䠄ഴᩳ㉮ᰝᆺ ';5' ἲ䠅䛾㛤Ⓨ䛻ᡂຌ䛧䛯  䚹䛣䛾ᡭἲ䛷䛿⤖ᬗ⢏ᚄ䜘䜚䜒༑ศᑠ䛥䛔䝡䞊䝮䝃䜲䝈䛾ධᑕ ; ⥺䝡䞊䝮䜢⏝䛔䛶ヨᩱ䜢㐃⥆ⓗ䛻  ḟඖ䝇䜻䝱䞁䛩䜛䛣䛸䛻䜘䜚  ḟඖ⤖ᬗ᪉఩ീ䜢ᚓ䜛䚹䛧䛛䛧䚸䛿䜣䛰䛛䜙䛾 ;5' 䛾䜏䜢᳨ฟ䛩䜛䛯䜑䛻ᚲせ䛺䝁䝙䜹䝹䝇䝸䝑䝖䜢⏝䛔䜛䛸ど㔝䛜ᩘⓒ P ௨ୗ䛻㝈䜙䜜䛶䛧䜎䛔䚸䝟䝽䞊䝰䝆䝳䞊䝹䛻䜘䛟ぢ䜙䜜䜛 PP ゅ䛸䛔䛳䛯䝎䜲䝪䞁䝗㒊㠃✚඲ᇦ䛻ᑐ䛧䛶䛿䜣䛰䛾⤖ᬗ᪉఩ീ䜢ᚓ䜛䛾䛿㞴䛧䛔䚹ᮏ◊✲䛷䛿䚸䝟䝽䞊䝰䝆䝳䞊䝹䛻䛚䛡䜛䝎䜲䝪䞁䝗㒊䛿䜣䛰䛾⤖ᬗ᪉఩ศᕸ䛻ぢ䜙䜜䜛௬ᐃ䜢⏝䛔䛶䝎䜲䝪䞁䝗㒊䛿䜣䛰䛾඲యⓗ䛺⤖ᬗ᪉఩ീ䜢㠀◚ቯ䛷ྍど໬䛩䜛䛣䛸䜢┠ⓗ䛸䛩䜛䚹㻌 ᪉ἲ
ᐇ㦂䛿㧗㍤ᗘ ; ⥺䛜฼⏝ྍ⬟䛺ᅜෆ኱ᆺᨺᑕග᪋タ 63ULQJ 䛻䛚䛔䛶⌮໬Ꮫ◊✲ᡤ䛜㐠Ⴀ䛩䜛䝡䞊䝮䝷䜲䞁%/;8䠄௨ୗ䚸⌮◊䝡䞊䝮䝷䜲䞁䠅䛻䛶⾜䛳䛯䚹⌮◊䝡䞊䝮䝷䜲䞁䛻䛚䛡䜛䜰䞁䝆䝳䝺䞊䝍ᨺᑕග ; ⥺䜢 6L  ஧⤖ᬗศගჾ䛻䜘䜚 NH9 䛻༢Ⰽ໬䛧䚸㛤ཱྀᖜ DîD îȝP 䛾䝇䝸䝑䝖䜢㏻䛧䛶ヨᩱ䛻ධᑕ䛧䛯䚹㻌 ヨᩱ䛻䛿┤᥋᥋ྜ㖡䠄'%&䠅ᇶᯈ䛻ཌ䛥⣙  P 䛾㖄䝣䝸䞊䛿䜣䛰䠄6Q&X䠅䝣䜷䜲䝹䜢௓䛧䛶ཌ䛥  P 䛾
6L 䝎䝭䞊䝏䝑䝥䜢䝎䜲䝪䞁䝗᥋ྜ䛧䛯䝟䝽䞊䝰䝆䝳䞊䝹ᵓ㐀య䛾ヨ㦂∦䜢⏝ព䛧䛯䚹䛿䜣䛰᥋ྜ䛿❅⣲㞺ᅖẼ䝸䝣䝻
䞊⅔䛷᭱㧗ᗘ ႏ䚸ಖᣢ᫬㛫 VHF 䛷⾜䛳䛯䚹'%& ᇶᯈ䛾 &X䚸6L1䚸&X 䛾ཌ䛥䛿䛭䜜䛮䜜 䚸䚸P䛷䛒䜛䚹6L 䝏䝑䝥䛾䝃䜲䝈䛿 PP ゅ䛷䛒䜛䚹㻌 ヨᩱᅇ㌿㍈䜢ධᑕ ; ⥺䝡䞊䝮䛻ᑐ䛧䛶 ഴᩳ䛥䛫䛯ヨᩱᅇ㌿䝇䝔䞊䝆䛾ୖ䛻 [V ᪉ྥཬ䜃 \V ᪉ྥ䛾ヨᩱ୪㐍䝇䝔䞊䝆䜢ᦚ㍕䛧䛭䛾ୖ䛻ヨ㦂∦䜢䝬䜴䞁䝖䛧䛯䚹䛣䛣䛷䚸[V\V]V 䛿ヨᩱ┤஺ᗙᶆ⣔䛷 ]V 䛿ヨᩱᅇ㌿㍈ཬ䜃ヨᩱἲ⥺᪉ྥ䠄1'䠅䛻ᖹ⾜䛷䛒䜛䚹ヨᩱᅇ㌿㍈䛸ධᑕ ; ⥺䝡䞊䝮䛜஺ᕪ䛩䜛䜘䛖䛻䜰䝷䜲䝯䞁䝖䛧䚸䛭䜜䜙䛜஺ᕪ䛩䜛Ⅼ䜢Ⅼ 2 䛸䛩䜛䚹䛿䜣䛰᥋ྜᒙ䛜Ⅼ 2 䛻㓄⨨䛥䜜䜛䜘䛖䛻఩⨨ྜ䜟䛫䜢⾜䛖䛣䛸䛷ヨᩱᅇ㌿ゅ Ȧ䚸[V ཬ䜃 \V 䛻౫Ꮡ䛫䛪䛻䛿䜣䛰ᒙ䛜ᖖ䛻Ⅼ 2 䛻䛚䛔䛶 ; ⥺䛻↷ᑕ䛥䜜䜛䚹ヨ㦂∦୰䛾䛿䜣䛰ᒙ䛛䜙䛾ᅇᢡ ; ⥺䜢 6Q ⏝䛾䝁䝙䜹䝹䝇䝸䝑䝖䜢㏻䛧䛶 ; ⥺  ḟඖ᳨ฟჾ䛻䜘䜚᳨ฟ䛧䛯䚹䛣䛾䝁䝙䜹䝹䝇䝸䝑䝖䛿඲᪉఩ゅ䛻䜟䛯䛳䛶 ȕ6Q 䛾  ཬ䜃  ཯ᑕ䛾䜏䜢㏻㐣䛥䛫䜛䛣䛸䛾䛷䛝䜛෇㗹≧䛾䝇䝸䝑䝖䛷䛒䜛䚹䛣䜜䛻䜘䜚」ᩘ䛾ᮦᩱ䛷ᵓᡂ䛥䜜䜛ヨᩱ䛛䜙 ȕ6Q 䛾䜏䛾ᅇᢡ ; ⥺䜢᳨ฟ䛩䜛䛣䛸䛜䛷䛝䜛䚹䛣䛾㓄⨨䛷ヨ㦂∦䜢ᅇ㌿䛩䜛䛣䛸䛻䜘䜚ᅇᢡ᮲௳䜢‶䛯䛩 Ȧ 䛾䛸䛝䛻ᅇᢡ ; ⥺䛜  ḟඖ᳨ฟჾୖ䛷ᅇᢡᩬⅬ䛸− 13 −

䛧䛶グ㘓䛥䜜䜛䚹䛣䛾䛸䛝」ᩘ䛾⤖ᬗ⢏䛾ᅇᢡᩬⅬ䛜᳨ฟ䛥䜜䛶䛔䜛䛸௬ᐃ䛩䜛䚹Ȧ 䜢 VHF 䛾ᅇ㌿㏿ᗘ䛷 䛛䜙䜎䛷㐃⥆ᅇ㌿䛥䛫䛺䛜䜙 䛤䛸䛻  ḟඖ᳨ฟჾ䛾⏬ീ䜢グ㘓䛧䛯䠄Ȧ 䝇䜻䝱䞁䠅䚹  PP  [V \V   PP 䛾୪㐍 P 䛷 Ȧ 䝇䜻䝱䞁䜢⾜䛳䛯䚹䝇䜻䝱䞁⠊ᅖ䛻ᑐ䛧䛶䝇䜻䝱䞁䝇䝔䝑䝥 ԥ[ᐃ᫬㛫䛿⣙  ᫬㛫䛷䛒䜛䚹ᚓ䜙䜜䛯 ;5' ⏬ീ䛻ᑐ䛧䛶ከ⤖ᬗᣦᩘ௜䛡  䜢⾜䛔ྛⅬ䠄[V \V䠅䛻䛚䛔䛶ೃ⿵䛸䛺䜛」ᩘ䛾⤖ᬗ⢏䛸ྛ⤖ᬗ⢏䛾᪉఩ཬ䜃 &RPSOHWHQHVV 䜢ồ䜑䛯䚹&RPSOHWHQHVV 䛿  䛷䛒䜜䜀䛭䛾᪉఩䛛䜙䛾ᅇᢡᩬⅬ䛜඲䛶᳨ฟ䛥䜜䚸 䛷䛒䜜䜀඲䛟᳨ฟ䛥䜜䛺䛛䛳䛯䛣䛸䜢⾲䛧䛶䛚䜚䚸኱䛝䛔⛬䚸ྛⅬ䠄[V \V䠅䜢༨᭷䛩䜛⤖ᬗ⢏䛷䛒䜛ྍ⬟ᛶ䛜㧗䛔䛣䛸䜢ព࿡䛧䛶䛔䜛䚹䝡䞊䝮䝃䜲䝈 D ཬ䜃䝇䝔䝑䝥ԥ[ 䛜⤖ᬗ⢏ᚄ䜘䜚༑ศᑠ䛥䛔䠄ഴᩳ㉮ᰝᆺ ';5' ἲ䛾䠅ሙྜ䚸ྛⅬ䠄[V \V䠅䛻䛚䛔䛶 &RPSOHWHQHVV 䛜᭱኱䛾⤖ᬗ⢏䜢ᢳฟ䛩䜛䛣䛸䛷⤖ᬗ᪉఩ീ䛜ᚓ䜙䜜䜛  䚹䛧䛛䛧䚸ᮏᐇ㦂䛾 D ཬ䜃 ԥ[ 䛿ṧᛕ䛺䛜䜙䛣䛾᮲௳䜢‶䛯䛥䛺䛔䚸䛴䜎䜚䚸⤖ᬗ᪉఩ศᕸ䛻ᑐ䛧䛶䝃䞁䝥䝸䞁䜾䜶䝷䞊䜢㉳䛣䛩᮲௳䛷䛒䜛䚹䛣䛾ሙྜ䚸ᑠ䛥䛔⤖ᬗ⢏䛜Ⅼ 2 䛻఩⨨䛧䛯ሙྜ䚸䛭䛾⢏䛾᪉఩䛜⢒኱⢏䛸䛧䛶Ꮡᅾ䛩䜛䛛䛾䜘䛖䛺༳㇟䜢୚䛘䜛ᜍ䜜䛜䛒䜛䚹䛭䛣䛷୪㐍䝇䜻䝱䞁⠊ᅖ䛻䛚䛡䜛඲యⓗ䛺⤖ᬗ᪉఩ീ䜢ᤊ䛘䜛䛯䜑䛻䚸䝎䜲䝪䞁䝗㒊䛿䜣䛰䛿୺䛻⢏ᚄԥ[ ⛬ᗘ䛾⢒኱⢏䛷ᵓᡂ䛥䜜⢒኱⢏䛾⢏⏺䛿኱ഴゅ⢏⏺䛻ẚ䜉䛶ᑠഴゅ⢏⏺䛜ᅽಽⓗ䛻ከ䛔䛸௬ᐃ䛩䜛䚹䛣䛾௬ᐃ䛻ᇶ䛵䛝ྛⅬ䠄[V \V䠅䛻䛚䛔䛶」ᩘ䛾ೃ⿵䛾⤖ᬗ⢏䛾୰䛛䜙䠍䛴䛾⢏䜢ᢳฟ䛩䜛䛣䛸䛷኱㠃✚᪉఩ീ䛾෌ᵓᡂ䜢⾜䛳䛯䚹䛣䛾෌ᵓᡂ᪉ἲ䛷䛿Ⅼ䠄[V \V䠅䜢༨䜑䜛⤖ᬗ⢏䛾ᢳฟ䛻㞄᥋䛩䜛Ⅼ䠄[Vԥ[ \V䠅䜒䛧䛟䛿䠄[V \Vԥ[䠅䛻䛚䛡䜛ྛ⢏䛾᪉఩䛸䛾᪉఩ᕪ Į 䜢⏝䛔䛯  䚹

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ᅗ  㠀◚ቯ䛷ᚓ䜙䜜䛯䝎䜲䝪䞁䝗㒊䛿䜣䛰᥋ྜᒙ䛾 DE ⤖ᬗ᪉఩䝬䝑䝥䛸 F &RPSOHWHQHVV 䝬䝑䝥 ᪉఩䛿 D[V ㍈ཬ䜃 E ]V ㍈䠄1'䠅䛾㏫ᴟⅬᅗ⾲♧ 䝢䜽䝉䝹䝃䜲䝈䛿 㽢 P ⤖ᯝ᪉఩ᕪ Į 䛷༙ศ௨ୖ䛾Ⅼ䛷᪉఩䛜ᢳฟ䛥䜜䚸Į 䛷䜋䜌඲Ⅼ䛻䛚䛔䛶᪉఩䛜ᢳฟ䛥䜜ᚓ䛯䚹䛣䜜䛿ୖ㏙䛾௬ᐃ䛜䝸䞊䝈䝘䝤䝹䛷䛒䜛䛣䛸䜢ព࿡䛧䛶䛔䜛䚹ᚓ䜙䜜䛯᪉఩䝬䝑䝥ཬ䜃 &RPSOHWHQHVV 䝬䝑䝥䜢ᅗ  䛻♧䛩䚹⤒㦂ⓗ䛻䛿ᴫ䛽 &RPSOHWHQHVV !  䛷䛒䜜䜀䛭䛾᪉఩䛾⤖ᬗ⢏䛜䜋䜌☜ᐇ䛻Ꮡᅾ䛧䛶䛔䜛䛸ゝ䛳䛶䜘䛟䚸ᴫ䛽 &RPSOHWHQHVV  䛾Ⅼ䛻䛴䛔䛶䛿䝪䜲䝗䛜Ꮡᅾ䛧䛶䛔䜛ྍ⬟ᛶ䜢♧၀䛧䛶䛔䜛䚹䛯䛰䛧䚸䝬䝑䝥ྑୖ䛾 &RPSOHWHQHVV   䛾㡿ᇦ䛿ヨᩱ䛾ഴ䛝䛻䜘䜚 ; ⥺ᅇᢡ䛜᳨ฟ䛥䜜䛺䛛䛳䛯䛸⪃䛘䜙䜜䜛䚹ከ䛟䛾Ⅼ䛷 &RPSOHWHQHVV !  䛜ᚓ䜙䜜䛶䛚䜚䚸኱㒊ศ䛜ள⢏⏺䛷⧅䛜䛳䛯⤖ᬗ᪉఩ศᕸ䛻ᑐ䛧䛶኱㠃✚᪉఩ീ䜢㠀◚ቯ䛷ᚓ䜛䛣䛸䛻ᡂຌ䛧䛯䛸ゝ䛳䛶䜘䛔䚹− 14 −

㻌 ⤖ㄽ㻌 ᨺᑕග ; ⥺ᅇᢡ䜢⏝䛔䛶䝟䝽䞊䝰䝆䝳䞊䝹ᵓ㐀యヨ㦂∦ෆ㒊䛾䛿䜣䛰᥋ྜ䛾኱㠃✚⤖ᬗ᪉఩ീ䜢㠀◚ቯ䛷ᚓ䜛䛣䛸䛻ᡂຌ䛧䛯䚹௒ᚋ䛿ᗘ䝃䜲䜽䝹➼䛾ಙ㢗ᛶヨ㦂䜢ᐇ᪋䛧䚸ྠ䛨ヨ㦂∦䛷ヨ㦂๓ᚋ䛾኱㠃✚᪉఩ീ䜢ẚ㍑䛩

䜛䛣䛸䛷㖄䝣䝸䞊䛿䜣䛰䛾ಙ㢗ᛶホ౯䛸䛧䛶ᴟ䜑䛶᭷⏝䛷䛒䜛䛣䛸䜢ᐇド䛩䜛䚹 ཧ⪃ᩥ⊩  -.LP<+D\DVKLDQG0<DEDVKL³+LJKUHVROXWLRQ'JUDLQRULHQWDWLRQPDSSLQJE\LQFOLQHGVFDQQLQJ';5'

PLFURVFRS\´-$SSO&U\VW   <+D\DVKLDQG+.LPXUDLQSUHSDUDWLRQ 䠄ඛᑟⓗ㔜Ⅼㄢ㢟䠅− 15 −

ඛᑟⓗ㔜Ⅼㄢ㢟䞉◊✲ሗ࿌᭩㻌䠄㟁☢⇕ὶయไᚚ䜢⏝䛔䛯㧗⢭⣽䝽䜲䝲䜰䞊䜽✚ᒙ㐀ᙧ䝅䝇䝔䝮䛾㛤Ⓨ䠅䝽 䜲 䝲 䜰 䞊 䜽 䜰 䝕 䜱 䝔 䜱 䝤 䝬 䝙 䝳 䝣 䜯 䜽 䝏 䝱 䝸 䞁 䜾 䠄 :$$0 :LUH $UF $GGLWLYH
0DQXIDFWXULQJ䠅䛿㧗⬟⋡䛺✚ᒙ㐀ᙧ䛜ྍ⬟䛷䛒䜚䚸䝺䞊䝄䜔㟁Ꮚ䝡䞊䝮䜢⏝䛔䜛㔠ᒓ✚ᒙ㐀ᙧ䝥䝻䝉䝇䛻ẚ䜉䛶ᑟධ䜔䝯䞁䝔䝘䞁䝇䛻䛛䛛䜛䝁䝇䝖䛜ᑠ䛥䛔➼䛸䛔䛳䛯
฼Ⅼ䛜䛒䜛୍᪉䚸㧗⢭⣽䛺✚ᒙ䛿୙ᚓᡭ䛸䛧䛶䛔䜛䚹䛧䛛䛧䛺䛜䜙㏆ᖺ䛷䛿㔠ᒓ✚ᒙ㐀ᙧ䜈䛾㟂せ䛜㧗䜎䛳䛶䛝䛯䛣䛸䛛䜙䚸ప䝁䝇䝖䛷ᑟධ䞉㐠⏝䛷䛝䜛䛣䛾䝥䝻䝉䝇䜒㧗⢭⣽䛺✚ᒙ㐀ᙧ䛻䜒ᑐᛂ䛧䛶䛔䛟ᚲせ䛜䛒䜛䚹䛭䛣䛷ᮏ⏦ㄳㄢ㢟䛷䛿ᐇ㦂ィ䛸ᩘ್ィ⟬䛾཮᪉䛛䜙䚸㟁☢⇕ὶయไᚚ䛻䜘䜛䝽䜲䝲⁐⼥⌧㇟䛾䝁䞁䝖䝻䞊䝹ᡭἲ䜢ᥦ᱌䞉㛤Ⓨ䛧䚸㧗⢭⣽䛺✚ᒙ㐀ᙧ䛾ᐇ⌧䜢┠ᣦ䛩䚹䜎䛪䛿ᚑ᮶䛾 :$$0 䝥䝻䝉䝇䛾ᢏ⾡ㄢ㢟䜢⢭ᰝ䛧䛯ᚋ䚸㟁☢⇕ὶయไᚚ䛻䜘䜛䝽䜲䝲⁐⼥⌧㇟䛾䝁䞁䝖䝻䞊䝹ᡭἲ䜢⪃᱌䛩䜛䚹䛭䛧䛶䚸⪃᱌䛧䛯㟁☢⇕ὶయไᚚ䜢ྍ⬟䛸䛩䜛᪂ :$$0 䝅䝇䝔䝮䛾⿦⨨ヨస䜢⾜䛖䚹⿦⨨᏶ᡂᚋ䛿㛤Ⓨ䛧䛯䝥䝻䝉䝇䜔✚ᒙ≀䛾ᛶ⬟ホ౯䜢ᐇ᪋䛧䚸᪂䛯䛺◊✲ㄢ㢟䛸◊✲㡿ᇦ䜢๰ฟ䛩䜛䚹䛆ᡂᯝᴫせ䛇ᮏㄢ㢟䛾ึᖺᗘ䛿 㻲㻿 ᆺ䛸䛧䛶ᐇ᪋䛧䛯䚹௦⾲⏦ㄳ⪅䛿 㼃㻭㻭㻹 䝥䝻䝉䝇䛾⇕※䛷䛒䜛䜰䞊䜽䝥䝷䝈䝬䜢ྵ䜐㟁ᴟ䠉䜰䞊䜽䝥䝷䝈䝬䠉⁐⼥ụ䛾ྛ⌧㇟䛾ྍど໬䜢ྍ⬟䛸䛩䜛ᐇ㦂ィ

䛸ᩘ್ィ⟬ᢏ⾡䜢ಖ᭷䛧䛶䛔䜛䚹㻲㻿 ᆺ䛾άື䜢㏻䛧䛶䛣䜜䜙䜢䛥䜙䛻Ⓨᒎ䛥䛫䜛䜉䛟䚸ᮏᖺᗘ䛿 㼃㻭㻭㻹㻌 䝥䝻䝉䝇䛻ಀ䜛⌧㇟䛾ྍど໬ᢏ⾡䜢ಖ᭷䛩䜛◊✲⪅䜙䛸䛾㐃ᦠ䜢ᶍ⣴䛧䛯䚹䛭䛾⤖ᯝ䚸䝍䞁䜾䝇䝔䞁㟁ᴟ䛾ᾘ⪖⌧㇟䛾ྍど໬䜢ᑓ㛛䛸䛩䜛◊✲⪅䛾ཧ⏬䜢ᚓ䜛䛣䛸䛜䛷䛝䛯䚹䛭䛧䛶ཧ⏬䛔䛯䛰䛔䛯◊✲⪅䜔௚䛾ඹྠ◊✲⪅䛸㆟ㄽ䜢㔜䛽䚸⌧≧䛾 㼃㻭㻭㻹 䝥䝻䝉䝇䛾ᢏ⾡ㄢ㢟䜢⢭ᰝ䛧䛯䚹䜎䛯௦⾲⏦ㄳ⪅䛿⥭⦰䛧䛯䜰䞊䜽䝥䝷䝈䝬䛸┤ᚄ 㻜㻚㻟㻌 㼙㼙 䛾⣽ᚄ䝽䜲䝲䜢⏝䛔䛯 㼃㻭㻭㻹 䝥䝻䝉䝇䜢ヨ䜏䚸ḟᖺᗘ௨㝆䛾ᙺ๭ศᢸᆺ䛾άື䛻ྥ䛡䛯ึᮇ᳨ウ䜢ᐇ᪋䛧䛯䚹௒ᚋ䛿ᮏᖺᗘ䛾ᡂᯝ䜢ά䛛䛧䚸㟁☢⇕ὶయไᚚ䛻䜘䜛䝽䜲䝲⁐⼥⌧㇟䛾䝁䞁䝖䝻䞊䝹ᡭἲ䜢⪃᱌䛧䛶ᐇᶵ䜢స〇䛧䚸ᐇドᐇ㦂䜢⾜䛳䛶䛔䛟ணᐃ䛷䛒䜛䚹㻌㻌㻌ࢸ࢕ࢢ࢔࣮ࢡᨺ㟁୰ࡢ㟁ᴟ⾲㠃࡟⏕ࡌࡿ㓟໬≀⃰໬㡿ᇦࡢㄪᰝ
ᆅ᪉⊂❧⾜ᨻἲே኱㜰⏘ᴗᢏ⾡◊✲ᡤ࿴Ἠࢭࣥࢱ࣮ຍᕤᡂᙧ◊✲㒊⏣୰៞࿃⥴ゝ ࢸ࢕ࢢ࢔࣮ࢡᨺ㟁࡛ࡣᨺ㟁㟁ᴟ࡜ࡋ࡚㸪ࢱࣥࢢࢫࢸࣥ࡟ᩘ ZWࡢ㓟໬≀ࡀ⢏≧࡟ῧຍࡉࢀࡓ㟁ᴟࡀ୍⯡ⓗ࡟౑⏝ࡉࢀࡿ㸬ࡇࢀ࡟ࡼࡾ㸪㟁ᴟࡣ㛗᫬㛫Ᏻᐃࡋ࡚ᨺ㟁ࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡾ㸪⇕※ࡢᏳᐃᛶࢆ㧗ࡵࡿࡔࡅ࡛࡞ࡃ෌◊๐࣭஺᥮࡜࠸ࡗࡓ࣓ࣥࢸࢼࣥࢫ㢖ᗘࢆῶࡽࡍࡇ࡜ࡶ࡛ࡁࡿ㸬ࡇࢀࡲ࡛࡟㸪ࢸ࢕ࢢ࢔࣮ࢡᨺ㟁୰࡟࠾࠸࡚ῧຍ㓟໬≀ࡀ⁐⼥ࡋࡓ≧ែ࡛㟁ᴟ⾲㠃ࢆ༨᭷ࡋ࡚࠾ࡾ㟁ᴟࡢືస ᗘࢆపୗࡉࡏ࡚࠸ࡿࡇ࡜㸪ࡲࡓ㟁ᴟෆ㒊࠿ࡽ⾲㠃࡬ࡢ౪⤥࡟ᑐࡋ࡚⾲㠃࡛ࡢ⵨Ⓨࡀୖᅇࡿ࡜ࡁ㸪㟁ᴟືస ᗘࡀୖ᪼ࡋ࡚㟁ᴟᑑ࿨࡟㐩ࡍࡿࡇ࡜ࡀ♧၀ࡉࢀ࡚࠸ࡿ>@㸬ࡘࡲࡾ㸪㟁ᴟࡢࡉࡽ࡞ࡿ㛗ᑑ࿨໬ࢆᅗࡿࡓࡵ࡟ࡣ㓟໬≀ᣲືࡸ㟁ᴟ⾲㠃≧ែࡢ⌮ゎࢆ῝ࡵࡿᚲせࡀ࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪ᨺ㟁ᚋࡢ㟁ᴟ⾲㠃࠾ࡼࡧෆ㒊ࢆศᯒࡍࡿࡇ࡜࡛㸪㟁ᴟෆእ࡟࠾ࡅࡿ㓟໬≀ᣲື࡟ࡘ࠸࡚⪃ᐹࢆ⾜ࡗࡓ㸬



ᐇ㦂᪉ἲ

 7DEOH ࡟ᮏ◊✲࡟࠾ࡅࡿᐇ㦂᮲௳ࢆ♧ࡍ㸬㝜ᴟ࡟ࡣ┤ᚄ PP㸪ඛ

7DEOH([SHULPHQWDOFRQGLWLRQV

➃ゅ ᗘࡢ ZW㓟໬ࢺ࣒ࣜ࢘ධࡾࢱࣥࢢࢫࢸࣥ㟁ᴟ㸪㝧ᴟ࡟ࡣỈ෭:HOGLQJFXUUHQW㖡ࣈࣟࢵࢡ PPPPPPWKLFN ࢆ⏝࠸࡚㟼Ṇࢸ࢕ࢢ࢔࣮ࢡᨺ

6KLHOGLQJJDV

3XUHDUJRQ㟁ࢆ⾜ࡗࡓ㸬࢔࣮ࢡᨺ㟁ᚋ࡟ࡣ㟁ᴟඛ➃㒊ࢆษ᩿࣭᥇ྲྀࡋ㸪⇕◳໬ᛶᶞ*DVIORZUDWH/㺃PLQ⬡࡟ᇙࡵ㎸ࡳ㸪㟁ᴟࡢ㍈᪉ྥ࡟ᑐࡍࡿ୰ᚰ᩿㠃ࡀ⌧ࢀࡿࡼ࠺◊☻ࡋࡓ㸬(OHFWURGHH[WHQVLRQPPࡑࡋ࡚㙾㠃௙ୖࡆࡉࢀࡓ㟁ᴟ୰ᚰ᩿㠃࡟ᑐࡋ࡚㸪࢚ࢿࣝࢠ࣮ศᩓᆺ ; ⥺$UFOHQJWKPP

ศᯒ ('6(QHUJ\'LVSHUVLYH;UD\6SHFWURVFRS\ ࢆ⏝࠸࡚ඖ⣲࣐ࢵ:HOGLQJWLPHPLQ

$

ࣆࣥࢢࢆ⾜ࡗࡓ㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ )LJ  ࡟࢔࣮ࢡᨺ㟁๓ᚋ࡛ࡢ㟁ᴟࡢ෗┿ࢆ♧ࡍ㸬 E ࢔࣮ࢡᨺ㟁࠿ࡽ  ศᚋࡢ㟁ᴟ⾲㠃࡛ࡣ≉࡟ඛ➃㒊࡟࠾࠸࡚㸪 D ᨺ㟁๓ࡢ◊๐⑞ࡣ࡯࡜ࢇ࡝☜ㄆࡉࢀࡎ㸪⾲㠃≧ែࡀኚ໬ࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓ㸬ࡇࡢኚ໬ࡣඛ➃࠿ࡽ⣙  PP ୖ᪉ࡢ㡿ᇦࡲ࡛ほᐹࡉࢀࡓ㸬)LJ  ࡟࢔࣮ࢡᨺ㟁࠿ࡽ  ศᚋࡢ㟁ᴟ )LJ  E ᩿㠃࡟࠾ࡅࡿ : ࡜ 7K
ࡢඖ⣲࣐ࢵࣆࣥࢢࢆ♧ࡍ㸬7K ࡣ㟁ᴟඛ➃㒊࠿ࡽ⣙ PP ୖ᪉ࡲ࡛ῶᑡࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓ㸬ࡇࡢῶᑡഴྥ
ࡣඛ⾜◊✲࡛♧ࡉࢀ࡚࠸ࡿഴྥ>@࡜ࡼࡃ୍⮴ࡋ࡚࠾ࡾ㸪7K ࡣ㟁ᴟෆ㒊࠿ࡽ⾲㠃࡬ࡢᣑᩓ࡞ࡽࡧ࡟⾲㠃࡛ࡢ⵨Ⓨ࡟ࡼࡗ࡚ᚎࠎ࡟ῶᑡࡋࡓ࡜᥎ᐹࡉࢀࡓ㸬ࡇࡇ࡛㟁ᴟඛ➃㒊࠿ࡽ⣙  PP ୖ᪉ࡢ㟁ᴟ⾲㠃࡟࠾࠸࡚ 7K ࡢ⃰໬ࡀ☜ㄆ࡛ࡁࡓࡓࡵ㸪ࡉࡽ࡟㧗ಸ⋡࡛ศᯒࢆᐇ᪋ࡋࡓ㸬)LJ ࡟ 7K ࡢ⃰໬㡿ᇦࡢᣑ኱෗┿ࢆ♧ࡍ㸬㟁ᴟ⾲㠃ࡢ୍㒊࡟࠾࠸
࡚ᩘ wP ཌࡢ 7K ࡢ⃰໬ࡀㄆࡵࡽࢀࡓ㸬୍᪉㸪: ෆ㒊࡟ࡣ⢏≧ࡢ 7K ࡀ」ᩘᩓぢࡉࢀ㸪ᨺ㟁๓࡜኱ࡁࡃኚࢃࡽ࡞࠸ศ
ᕸ࡛࠶ࡗࡓ㸬ࡋࡓࡀࡗ࡚㸪7K ࡣ㟁ᴟࡢ⾲ᒙ௜㏆࡛ࡣ࡞ࡃ⾲㠃ࡢ୍㒊࡛⃰໬ࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬ࡲࡓ㸪ࡇࡢ⃰໬㡿ᇦࡣ )LJ ࡛ぢࡽࢀࡓ⾲㠃≧ែࡀኚ໬ࡋ࡚࠸ࡿ㡿ᇦ࡜఩⨨ࡀᴫࡡ୍⮴ࡋ࡚࠸ࡓ㸬ඛ⾜◊✲࡛ࡣ㸪ࢸ࢕ࢢ࢔࣮ࢡᨺ㟁ᚋࡢ ZW㓟໬ࣛࣥࢱࣥධࡾࢱࣥࢢࢫࢸࣥ㟁ᴟ⾲㠃ࡢ୍㒊࡛ /D ࡢ⃰໬㡿ᇦࡀ☜ㄆࡉࢀ࡚࠾ࡾ㸪ࡇࡢ /D ࡢ⃰໬㡿ᇦ㏆ഐ࡟࠾࠸࡚ࡣࣛࣥࢱࣥཎᏊࡸ୍౯ࣛࣥࢱࣥ࢖࢜ࣥࡢⓎගࢫ࣌ࢡࢺࣝࡀィࡉࢀ࡚࠸ࡿ>@㸬ࡲࡓࢸ࢕ࢢ࢔࣮ࢡ✵㛫࡟࠾࠸࡚㸪࢖࢜ࣥ໬ࡋࡓ㔠ᒓ⵨Ẽࡣ㟁ᴟ㏆ഐࡢᙉ࠸㟁ሙ࡟ࡼࡗ࡚㝜ᴟ࡛࠶ࡿࢱࣥࢢࢫࢸࣥ㟁ᴟ⾲㠃࡬㍺㏦ࡉࢀ㸪ሁ✚ࡍࡿࡇ࡜ࡶሗ࿌ࡉࢀ࡚࠸ࡿ>@㸬௒ᅇ㸪ほᐹ࡛ࡁࡓ 7K ࡢ⃰໬ࡣ㟁ᴟ⾲㠃ࡢ୍㒊࡟࠾࠸࡚⏕ࡌ࡚࠾ࡾ㸪ඛ⾜◊✲࡜ྠᵝ࡛࠶ࢀࡤ㸪㟁ᴟඛ➃㒊⾲㠃࠿ࡽ⵨Ⓨࡋࡓ 7K ⵨Ẽࡀࢸ࢕ࢢ࢔࣮ࢡ✵㛫࡛࢖࢜ࣥ໬ࡋ㸪ᙉ࠸㟁ሙ࡟ࡼࡗ࡚㟁ᴟ㸦㝜ᴟ㸧࡬㍺㏦ࡉࢀ㸪㟁ᴟ⾲㠃ࡢ୍㒊࡟ሁ✚ࡋࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬

− 16 −)LJ 3KRWRJUDSKVRIWXQJVWHQHOHFWURGH

)LJ &URVVVHFWLRQDO HOHPHQWDO PDSSLQJV IRU WKHWXQJVWHQHOHFWURGHDIWHUZHOGLQJIRUPLQXWHV)LJ (QODUJHGYLHZRIDSDUWLDOUHJLRQRI)LJ⤖ゝࢸ࢕ࢢ࢔࣮ࢡᨺ㟁ᚋࡢ㟁ᴟࡢ⾲ᒙ௜㏆࡛ࡣ࡞ࡃ⾲㠃࡟࠾࠸࡚㸪㓟໬≀ࡢ⃰໬㡿ᇦࡀ୍㒊ฟ⌧ࡍࡿࡇ࡜ࡀ᫂ࡽ࠿
࡜࡞ࡗࡓ㸬ඛ⾜◊✲ࡢ⤖ᯝ࠿ࡽ㸪⃰໬㡿ᇦࡣࢸ࢕ࢢ࢔࣮ࢡ✵㛫࡟࠾࠸࡚࢖࢜ࣥ໬ࡋࡓ 7K ࡀሁ✚ࡋࡓ㡿ᇦ࡜⪃࠼ࡽࢀࡿࡓࡵ㸪௒ᚋࡣ⃰໬㡿ᇦ㏆ഐ࡟࠾ࡅࡿࣉࣛࢬ࣐ศගィ ࡸࢱࣥࢢࢫࢸࣥ㟁ᴟࡢᴟᛶࢆධࢀ᭰࠼ࡓᐇ㦂ィ ࢆᐇ᪋ࡋ㸪⃰໬㡿ᇦࡢฟ⌧࣓࢝ࢽࢬ࣒ゎ᫂࡟ྲྀࡾ⤌ࡴ㸬㓟໬≀ࡢ㟁ᴟෆ㒊࠿ࡽ⾲㠃࡬ࡢ౪⤥ࡢࡳ࡛࡞ࡃ㸪㟁ᴟ⾲㠃࠿ࡽ
⵨Ⓨᚋࡢ㓟໬≀ᣲືࡲ࡛⌮ゎࡀ῝ࡲࡿࡇ࡜࡛㸪ࡉࡽ࡞ࡿ㟁ᴟᑑ࿨ࡢྥୖࡀᮇᚅࡉࢀࡿ㸬


ཧ⪃ᩥ⊩

>@ 0 7DQDNDHWDO -3K\V'$SSO3K\V   
>@ . .RQLVKLHWDO4--SQ:HOG6RF   LQ-DSDQHVH>@ .7DQDND HWDO:HOG/HWWHU   :/:/>@ .7DQDNDHWDO4--SQ:HOG 6RF   LQ-DSDQHVH>@ -;LDQJHWDO- 3K\V'$SSO3K\V   
>@ -;LDQJ HWDO$SSO0DWK0RGHO   
>@ .7DQDNDHWDO6FL7HFK:HOG-RLQ   

ඛᑟⓗ㔜Ⅼㄢ㢟− 17 −୍⯡බເ◊✲ㄢ㢟࣭◊✲ሗ࿌᭩㻌㻌‫ݽ‬ରΝ༽͏ͪΠʖέ‫ླྀݸ‬अஇգఖͶ͕͜ΖΠʖέૌ੔͹ࣰ‫ݩ‬దਬఈ໌‫ݻ‬Բ୉ָ ୉ָӅ޽ָ‫ڂݜ‬Ռၴ‫ ۆ‬௜ਕɾ஝஦ ༛ ୉ָӅਫ਼ ɾ஦ଞ ࠺ଢ ୉ָӅਫ਼   Ή͓͗͘
 '& ϐϣʖθ͹अஇ༲ྖΝ߶ΌΖͪΌͶͺɾअஇգఖͶ͕͏ͱϐϣʖθ಼෨Ͳਫ਼ͣΖ '& Πʖέ͹αϧϞఏ߇ UFRO ଁՅ͗චਤͲ͍ΖɽජंΔͺɾUFRO ଁՅΝ໪దͳ͢ͱɾ৿͢͏ '& Πʖέভ‫ނ‬ഖର͹֋൅Νߨͮͱͪ͘ɽͨ͹݃Վͳ͢ͱɾ‫߶ͳ࠯ܖ‬෾ࢢࡒΝญ༽ͤΖ
͞ͳͲɾUFRO ͹ଁՅ͗Ն೵͵͞ͳΝ‫ݡ‬ड़͢ͱ͏Ζ>@ɽ͞͹ͳ͘͹ UFRO ଁՅ‫ݳ‬ে͹੠֮͵ཀྵմ͹ͪΌͶͺɾΠʖέ͹Կָૌ੔ΏɼԿָૌ੔͹รԿ͹݃Վͳ͢ͱਫ਼
ͣΖΠʖέు‫ـ‬ఏ߇ི͹รԿΝ੠֮ͶఈྖదͶ଎ఈ
ͤΖචགྷ͍͗Ζɽ ҲൢదͶɾΠʖέ͹ૌ੔෾ੵ͹๏๑ͳ͢ͱͺҐԾ͹  ఼͍͗Ζʁ L  ൅ޭ෾ޭ؏଎Ͷ‫͚Ͱخ‬๏๑ɾLL  Πʖέਫ਼੔Ͳਫ਼ͣͪ‫ݽ‬ର෯ਫ਼੔෼͹੔෾͖ΔਬఈͤΖ๏๑ɽ͖͢͢͵͗Δɾϐϣʖθ಼෨͹Πʖέͺ‫ݽ‬ରভ‫ނ‬ഖରͲҕΉΗͪ‫ͤނ఼Ͳؔۯ‬Ζɽͨ͹ͪΌ L ͹൅ޭ෾ޭ؏଎ͶΓΖΠʖέ͹ૌ੔෾ੵ͗ೋ͢͏ɽ
LL ͹๏๑Ͷͯ͏ͱ΍ɾΠʖέ͹ভ‫ނ‬գఖͲͺɾ෯ਫ਼੔෼ͳ͢ͱ‫ݽ‬૮Ͷ໯ΖԿָ෼࣯Ґ֐Ͷ΍‫ـ‬૮ͳ͢
ͱ࢔ཻͤΖ෼࣯͍͗Ζɽͨ͹ͪΌɾ෯ਫ਼੔෼ͳ͢ͱ‫ݽ‬૮‫ـ‬૮͗෵߻దͶਫ਼੔ͤΖ‫Ͳܧ‬ͺɾΠʖέ͹ૌ੔Νਜ਼͚͢‫੷ݡ‬΍Η͵͏ɽྭ͓ͻɾ‫ ͳ࠯ܖ‬6LOLFRQH धࢹΝญ༽ͪ͢ΠʖέअஇգఖͲͺɾ6LOLFRQH &+6L2  ͹ߑ੔‫ݫ‬ો͹͑ͬɾ&[+\ ͗‫ـ‬૮ͳ͢ͱ୦཯ͤΖՆ೵੓
͗߶͏>@ɽͨ͹ͪΌɾ‫ݽ‬ର෯ਫ਼੔෼͖Δ͹Πʖέૌ੔ਬఈͲͺɾΠʖέ஦Ͷ͕͜Ζ 6LOLFRQH ৢ‫ـ‬ೳౕΝգঘ඲Ճ͢ɾ‫ ࠯ܖ‬6L2 ৢ‫ـ‬͹ೳౕΝգ୉඲ՃͤΖՆ೵
੓͍͗Ζɽ
ॊͮͱɾϐϣʖθ಼෨Πʖέ͹ૌ੔෾ੵ͹ͪΌͶͺɾॊཔ͹ޭָద͵๏๑Ώ෯ਫ਼੔෼෾ੵͶ‫͚Ͱخ‬๏๑Ґ֐͹ɾ৿ͪ͵๏๑ΝߡҌͤΖචགྷ͍͗ΖɽΉͪɾΠʖέ͹ు‫ـ‬ఏ߇ིͺԻౕ͹‫ͱ͢ͳ਼ؖ‬ཀྵ࿨దͶ‫ٽ‬ΌΖ͞ͳ͗ҲൢదͲ͍Εɾ͍ΖΠʖέుླྀ஍Ͷ͕͜Ζు‫ـ‬ఏ߇ིΝࣰ‫ݩ‬దͶ‫ٽ‬ΌΖ͞ͳͺΆ·ߨΚΗͱ͏͵͏ɽຌ‫Ͳڂݜ‬ͺɾ ‫& ͳـৢ࠯ܖ‬X Πʖέ͹ࠠ߻‫ـ‬ର
6L2&XYDSRUPL[WXUH Ͷͯ͏ͱɼు‫ـ‬ఏ߇ིΝཀྵ࿨‫ܯ‬ࢋͪ͢ɽ͠ΔͶɼ‫ ࠯ܖ‬6L2 ฆର ͲҕΉΗͪ‫Ͳؔۯ‬൅
ਫ਼ͤΖգోద͵ &X ΠʖέͶଲ͢ͱɼు‫ـ‬ఏ߇ི͹գోਬҢΝࣰ‫ݩ‬దͶਬఈՆ೵͵๏๑Ν‫ݗ‬౾ͪ͢ɽ

Ζӣಊྖร‫ু׷‬ಧ੷෾Ͷͯ͏ͱͺɼ/[&DW ͵ʹͶ‫ࡎى‬͹ుࢢুಧӣಊྖ༎ૻஇ໚੷Ν༽͏Ζ͞ͳͲ‫ٽ‬Όͪɽు‫ـ‬ఏ߇ི͹‫ࢋܯ‬Ͷ͕͏ͱɼѻྙΝ 03D ͳͪ͢ɽ ཀྵ࿨‫ࢋܯ‬͹݃Վɼ6L2&X ࠠ߻‫ـ‬ର͹ు‫ـ‬ఏ߇ིͺɼԻౕ͗ . ͹Իౕ൥ҕͶ͕͏ͱɼ6L2 ͳ &X͹ࠠ߻ർͶΓΔͥ༁ ʛ ЌʀP Ͳ͍ͮͪɽ ॊͮͱɼ
࣏ઇҐ߳Ͳफ़΄Ζ 6L2&X ࠠ߻ΠʖέͶଲͤΖࣰ‫ݩ‬ద͵ు‫ـ‬ఏ߇ི͹଎ఈ݃Վ͗ ʛ ЌʀP ఖౕͲ͍Ηͻɾ֕͸ଧ౲͵଎ఈ͗ߨ͓ͱ͏Ζͳߡ
͓ΔΗΖɽ ‫࠯ܖ‬Νভ‫ނ‬ഖରͳ͢ͱ༽͏ͪգో &X Πʖέভ‫ނ‬գఖͶ͕͜Ζు‫ـ‬ఏ߇ི͹ࣰ‫ݩ‬దਬఈ ࣰ‫ݩ‬ড়݇ ҐԾ͹  झྪ͹ࣰ‫ݩ‬Νߨͮͪɽձ ‫࠯ܖ‬ດງ‫಼ؔۯ‬Ͷ͕͜ΖΠʖέভ‫ݩࣰނ‬ຌࣰ‫Ͳݩ‬ͺɼ෱͗ PP Ͳമ͗͠ PP ͹ &X ϐϣʖθΦϪϟϱφΝήϧϓΟ΢φు‫ؔۅ‬Ͷંକͪ͢ɽ
͞͹ήϧϓΟ΢φు‫ۅ‬Νοϡϱώʖ಼Ͷઅ஖͢ɼϐϣʖθΦϪϟϱφΏήϧϓΟ΢φు‫࠯ܖ͗ۅ‬Ͷ‫׮‬સͶດງͤΖΓ͑Ͷ‫࠯ܖ‬Νैలͪ͢ɽͨ͹‫ޛ‬ɼు‫ۅ‬Ͷଲ͢ͱ $ ͹௜ླྀుླྀΝ௪ు͢ɼΠʖέভ‫ݩࣰނ‬ΝߨͮͪɽΠʖέভ‫ނ‬գఖͶ͕͜ΖుླྀʀుѻΝ‫ܯ‬଎͢ɼΠʖέఏ߇Ν಍ड़ͪ͢ɽΉͪɼΠʖέভ‫ޛނ‬
Ͷ࢔ཻͤΖ෯ਫ਼੔෼Ͷଲ͢ͱ ; ત &7 Ν༽͏ͪ଎ఈ
Νߨ͏ɼ෯ਫ਼੔෼͹಼෨ߑଆΝ඲Ճͪ͢ɽ
ղ ؏଎૯Ν۫ඍͪ͢οϡϱώʖΝ༽͏ͪΠʖέভ‫ނ‬ʀΠʖέ؏଎ࣰ‫ݩ‬ ຌࣰ‫Ͳݩ‬ͺɼΦϪϟϱφ͹बҕͶԃ౷‫ܙ‬য়͹Ϊϧη؇Νഓ஖ͪ͢ɽͨ͹‫ޛ‬ɼΪϧη؇͹಼֐͕Γ;οϡϱώʖ಼Ͷ‫࠯ܖ‬Νैలͪ͢ɽͨ͹‫ޛ‬ɾు‫ͳۅ‬ΦϪϟϱφͶଲ͢ͱ $ ͹௜ླྀుླྀΝ௪ు͢ɾգోΠʖέΝ఼‫ͪͦ͠ނ‬ɽ͞͹Πʖέ͹఼‫͖ނ‬Δভ‫ނ‬ΉͲͶࢺΖΉͲ͹ుླྀ L ͕Γ;Πʖέఏ߇ UDUF Ν‫ܯ‬଎ͪ͢ɽ͞͹ࣰ‫Ͳܧݩ‬ͺɾΪϧη؇಼Ͳ఼‫ͪ͢ނ‬Πʖέ͗Ϊϧη؇஦Ͷ෩೘͠Ηͪ‫࠯ܖ‬Νৢ൅ͤΖ͞ͳͲɾΪϧη؇ӿ͢ͶΠʖέ͹ޭָ؏଎͗Ն೵Ͷ͵Ζɽ͞͹࣎ͶΪϧη؇಼Ͳ఼‫ͤނ‬ΖΠʖέ͹༹૮Νɾ߶ଐౕϑυΨΩϟϧ 3KDQWRP9(2/ Ν༽͏ͱ؏଎
6L2&X ࠠ߻ৢ‫ـ‬͹ు‫ـ‬ఏ߇ི࣋‫ ܀‬ͪ͢ɽ؏଎‫ޛ‬Ͷɾ࣏ઇͲफ़΄Ζժ଀ॴཀྵ๏๑Ν༽͏ ‫ॶۃ‬೦ฑߩՀఈ͹ԾͲɾ6L2&X ࠠ߻ৢ‫ـ‬͹ు‫ـ‬ఏͱΠʖέ‫ܙ‬য়͹գోรԿΝ಍ड़ͪ͢ɽ
߇ིߩୖ Νཀྵ࿨‫ͪ͢ࢋܯ‬ɽཀྵ࿨‫ࢋܯ‬Ͷͺɼ&KDSPDQ Ήͪɾಋ༹͹ࣰ‫ݩ‬Ν‫࠯ܖ‬Νैల͢͵͏ড়݇ ͯΉΕɾ
(QVNRJ ๑͹୊Ҳ࣏ۛࣇΝϗʖηͳͪ͢๏๑Ν༽͏ͪɽ ‫ـۯ‬͹Ί͗Πʖέভ‫ͤ༽ࡠͱ͢ͳࡒނ‬Ζড়݇ Ͳ΍‫ࢋܯ‬Ͷචགྷ͵ 6L2&X ͹߶ԻԿָૌ੔ͺɼ*LEEV ͹ࣙΠʖέভ‫ݩࣰނ‬Νߨ͏ɾLɾUDUF ͕Γ;Πʖέ‫ܙ‬য়͹༟ΦϋϩάʖͶ‫ࢋܯ͚Ͱخ‬๏๑Ν༽͏Ζ͞ͳͲɼԻ
଎ఈΝߨͮͪɽ
ౕΏ 6L2&X ͹ࠠ߻ർ͹‫ٽͱ͢ͳ਼ؖ‬ΌͪɽΉͪɼԿָૌ੔Ͷ‫؜‬ΉΗΖ༹ʓ͵Կָझͳుࢢ͹ুಧͶଲͤ− 18 −

$UFUHVLVWDQFH UDUF>:@

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6LOLFDVDQG

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$LU

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,QVWDQWDQHRXVFXUUHQWL>$@D $UFUHVLVWDQFH(VWLPDWHGDUFUHVLVWLYLW\ UDUF>:āP@Νਬఈͪ͢ɽޭָ؏଎͹݃Վ͖ΔΠʖέ‫ܙ‬য়ΝਬఈͤΖࡏͺɾ؏଎͠Ηͪޭָ଀Ͷଲ͢ͱ ,VR'DWD ๑Ν༽͏ͱٍౕᮤ஍Ν݀ΌΖ͞ͳͲ್஍ԿॴཀྵΝߨͮͪɽ್஍Կॴཀྵ‫ޛ‬͹ժ଀͖Δɾ֦ॢ࣎ుླྀ஍ L Ͷ͕͏ͱգోదͶรԿͤΖΠʖέ͹‫ܙ‬য়Ν݀ఈͪ͢ɽ
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6LOLFDVDQG
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,QVWDQWDQHRXVFXUUHQWL>$@E $UFUHVLVWLYLW\

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ਦ  Πʖέఏ߇͹଎ఈ݃Վͳ
Πʖέ͹ు‫ـ‬ఏ߇ི͹ਬఈ݃Վ
 Πʖέ͹ు‫ـ‬ఏ߇ི ȡ5 L ͹ਬఈ๏๑ ࣰ‫ݩ‬͹݃Վ͖ΔಚΔΗΖΠʖέఏ߇ UDUF L ͳҐԾ͹ࣞΝ༽͏ͱɾ͍Ζॢ࣎ుླྀ஍ L Ͷ͕͜ΖΠʖέ͹ు‫ـ‬ఏ߇ི ȡ5 L Ν‫ٽ‬Όͪɽߩோ ሺ݅ሻ ൌ ‫ݎ‬ୟ୰ୡ ሺ݅ሻܵୟ୰ୡ ሺ݅ሻ݈௔௥௖ գోรԿͤΖΠʖέ͹ు‫ـ‬ఏ߇ི͹ਬఈ݃Վ ਦ  D ͶɾΠʖέভ‫ ࠯ܖͱ͢ͳࡒނ‬6L2 ͕Γ;‫ۯ‬‫ ـ‬$LU Ν༽͏ͪࡏ͹գోΠʖέఏ߇ UDUF Ν L Ͷଲ͢ͱϕϫρφͪ݃͢ՎΝࣖͤɽಋਦ͖Δɾ‫ͳـۯ‬ർֳ͢ͱɾ
‫࠯ܖ‬Ν࢘༽ͪ࣎͢͹๏͗ UDUF ͗৏ত͢Ώͤ͏͞ͳ͗
Κ͖Ζɽ  ਦ  E ͶɾΠʖέভ‫ ࠯ܖͱ͢ͳࡒނ‬6L2 ͕Γ;‫ۯ‬‫ ـ‬$LU Ν༽͏ͪࡏ͹գో ȡ5 Ν L Ͷଲ͢ͱϕϫρφͪ݃͢ՎΝࣖͤɽಋਦ͖Δɾ‫࠯ܖ‬ΝΠʖέভ‫ނ‬ഖରͳ͢ͱ༽͏ͪ࣎Ͷͺɾȡ5 ͗  ЌʀP ఖౕͲ͍Ζ͞ͳ͗Κ͖Ζɽ͞͹஍ͺɾ ઇͲफ़΄ͪ 6L2&X ࠠ߻‫ـ‬ରͶଲͤΖు‫ـ‬ఏ߇ི͹ཀྵ࿨‫ࢋܯ‬஍ͳಋఖౕͲ͍Ζɽॊͮͱɾ֕͸ଧ౲͵ ȡ5 ࣰ͗‫ݩ‬దͶ΍଎ఈͲͪ͘ͳߡ
͓ΔΗΖɽ
ΉͪɾΠʖέভ‫ނ‬ഖରͳ͢ͱ‫ـۯͳ࠯ܖ‬Ν࢘༽ͪ࣎͢Ͳͺɾࣰ‫݃ݩ‬Վ͖Δਬఈ͠ΗΖ֦ॢ࣎ుླྀ஍ L Ͷ
͕͜ΖΠʖέ͹ ȡ5 L Ͷ୉͘͵ࠫ͗ໃ͏͞ͳ͗Κ͖Ζɽॊͮͱɾਦ  D Ͳࣖ͠Ηͪ‫࣎༽࢘࠯ܖ‬Ͷ͕͜Ζ UDUF ͹৏তͺɾ
6L2 ͗ &X ΠʖέͶࠠ೘ͤΖ͞ͳͲً͞Ζ ȡ5
͹รԿͲͺ͵͚ɾ&X Πʖέ͗‫࠯ܖ‬ฆର͹ཽͳ෼ཀྵద
ͶંৰͤΖ͞ͳͲً͞ΖΠʖέ͹಍ుஇ໚੷͹‫ڳ‬ҮԿ͗कགྷҾͲ͍Ζ͞ͳ͗ࣖࠨ͠Ηͱ͏Ζɽ ΉͳΌ ຌ‫Ͳڂݜ‬ͺɾ‫࠯ܖ‬΍͚͢ͺ‫ـۯ‬Ν௜ླྀΠʖέভ‫ނ‬ഖରͳ͢ͱ༽͏ͪΠʖέভ‫ނ‬գఖͶ͕͜ΖɾΠʖέ͹ు‫ـ‬ఏ߇ིΝࣰ‫ݩ‬దͶਬఈՆ೵͵๏๑Ͷͯ͏ͱ‫ݗ‬౾ͪ͢ɽΠʖέভ‫ނ‬գఖͲಚΔΗͪΠʖέఏ߇ͳ‫ڠ‬Ͷɾ; ત &7 Ώޭָ؏଎͖ΔಚΔΗͪΠʖέ‫ܙ‬য়͹৚ๅΝ༽͏Ζ͞ͳͲɾΠʖέ͹ు‫ـ‬ఏ߇ིΝਬఈͪ͢ɽ
ͨ͹݃Վɾ֕͸ଧ౲͵Πʖέ͹ు‫ـ‬ఏ߇ིΝࣰ‫ݩ‬దͶਬఈͤΖ͞ͳ͗Ͳͪ͘ɽΉͪɾͨ͹݃ՎΝ༽͏ͱɾ‫࣎༽࢘࠯ܖ‬Ͷ͕͜ΖΠʖέఏ߇৏ত͹कགྷҾͶͯ͏ͱ͹ߡࡱΝߨ͑͞ͳ͗Ͳͪ͘ɽ
ࠕյ͹ࣰ‫Ͳݩ‬ਬఈ͠ΗͪΠʖέ͹ు‫ـ‬ఏ߇ིΝ࠸‫ͤݳ‬ΖΠʖέ͹Ϊηૌ੔Ν‫ࢋٱ‬దͶਬఈͤΖ͞ͳͲɾগཔదͶͺգోรԿͤΖΠʖέ͹ૌ੔΍ਬఈՆ೵Ͳ
͍Ζͳߡ͓ͱ͏Ζɽช ‫ݛ‬>@1.RGDPDHWDOɾ,((-7UDQVSS  >@:7DNHQDND1.RGDPDHWDO-3K\V'$SSO3K\V͞͞ͲɾODUF ͺΠʖέௗͲ͍Εɾຌࣰ‫ݩ‬Ͷ͕͏ͱͺు‫ͳ཯ړؔۅ‬౵͚͢͵ΖͳՀఈͪ͢ɽΉͪɼ෯ਫ਼੔෼
ͶଲͤΖ֐؏͹؏଎݃ՎΏ̯ત &7 Ν༽͏಼ͪ෨‫ܙ‬য়͹଎ఈ݃Վɼ͕Γ;ΠʖέͶଲͤΖޭָ؏଎͹݃
Վ͖Δɾ
૱߻దͶɾ
գోรԿͤΖΠʖέ͹இ໚੷6DUF L  >@1.RGDPDHWDOɾ,((-7UDQVSS  − 19 −ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁΦϋϩάʖ੏‫ָޜ‬෾໼ʥ࢔࣮ࢡ⁐᥋ࢩࢫࢸ࣒ࢆᛂ⏝ࡋࡓ⁐⼥㔠ᒓὶ⌧㇟ࡢゎ᫂ᮾ໭኱Ꮫ኱Ꮫ㝔 ᕤᏛ◊✲⛉ⱱ⏣ ṇဢ㸪ᮡᮏ ┿㸪ᐩ⏣ ៅ࿃㸪ᓊᮏ 㝧௓㸪㭯ぢ ಇ௓ ⥴ゝ⁐ᒾὶࢆక࠺ⅆᒣᄇⅆࡣྛᡤ࡛ࡋࡤࡋࡤⓎ⏕ࡋ㸪࿘㎶ࡢᆅᇦ࡟኱ࡁ࡞⿕ᐖࢆཬࡰࡋ࡚ࡁࡓ㸬⁐ᒾὶ࡟ࡼࡿ
⿕ᐖࢆ㍍ῶࡍࡿࡓࡵ࡟ࡣ㸪ࡑࡢὶື⌧㇟ࢆゎ᫂ࡍࡿࡇ࡜࡛⁐ᒾࡢὶධᆅᇦࢆṇ☜࡟ணࡋ㸪ᑐ⟇ࢆㅮࡌࡿᚲ

せࡀ࠶ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⏝࠸ࡓ᪤Ꮡࡢ⁐ᒾὶ◊✲࡛ࡣ㸪ᕧどⓗ࡞⁐ᒾࡢὶືண
ࡀከࡃ⾜ࢃࢀ࡚࠸ࡿࡀ㸪⁐ᒾෆ㒊࡟࠾ࡅࡿὶື⌧㇟ࡸヲ⣽࡞⁐ᒾ⌧㇟ࡢゎ᫂࡟ࡣ⮳ࡗ࡚࠸࡞࠸㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ᑗ᮶ⓗ࡞ヲ⣽࡞⁐ᒾ⌧㇟ࡢ෌⌧㸪࠾ࡼࡧࡑࢀ࡟ᇶ࡙ࡃὶධᆅᇦண

ࢆ┠ⓗ࡜ࡋ㸪ࡑࡢ➨୍ẁ㝵࡜ࡋ࡚≀ᛶ್ࡢᚓࡸࡍ࠸⁐⼥㕲࡛⁐ᒾࢆᶍᨃࡋ㸪ഴᩳࡋࡓᖹᯈୖࢆ┦ኚ໬ࡋ࡞ࡀࡽὶୗࡍࡿ㢮ఝ㐣⛬ࢆ⢏Ꮚἲ࡟ࡼࡗ࡚ࢩ࣑࣮ࣗࣞࢺࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿ࠿ࢆ᳨ドࡋࡓ㸬 ィ⟬ࣔࢹࣝᮏ◊✲࡛ࡣ㸪ᑗ᮶ⓗ࡟⁐ᒾὶࡢจᅛ࡟ࡼࡿⅆᒣࡢ⾲㠃ᙧ≧ࡢኚᙧࢆ⪃៖ࡋࡓࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜࠺ࡇ࡜ࢆᛕ㢌࡟⨨ࡁ㸪⛣ືቃ⏺ၥ㢟ࢆᐜ᫆࡟ᢅ࠺ࡇ࡜ࡢ࡛ࡁࡿ⢏Ꮚἲࡢ  ࡘ࡛࠶ࡿ 6PRRWKHG3DUWLFOH+\GURG\QDPLFVἲࢆ᥇⏝ࡋࡓ㸬ᮏ◊✲࡛ࡣ㸪⁐ᒾࡢ⏕ᡂ㐣⛬ࢆ㸪࢔࣮ࢡ⁐᥋ࣉࣟࢭࢫ࡟࠾࠸࡚⿕⁐᥋㔠ᒓࡀ⁐⼥ࡍࡿ㐣⛬࡜ࡋ࡚ࣔࢹࣝ໬ࡋࡓ㸬ὶయࡢᣲືࡣ 1DYLHU6WRNHV ᪉⛬ᘧ࡟ࡼࡗ࡚グ㏙ࡉࢀ㸪Ẽὶ࠿ࡽཷࡅࡿ⾲㠃ࡏࢇ᩿ຊ㸪ᾋຊ㸪/RUHQW] ຊ㸪ᗘ౫Ꮡᛶࢆ⪃៖ࡋࡓ⾲㠃ᙇຊࢆእຊ࡜ࡋ࡚୚࠼ࡓ㸬

⇕㍺㏦㐣⛬ࡣ࢚ࢿࣝࢠ࣮㍺㏦᪉⛬ᘧ࡟ࡼࡗ࡚グ㏙ࡉࢀࡿࡀ㸪๓㏙ࡢࡼ࠺࡟㸪⁐ᒾࡢ⏕ᡂ㐣⛬ࢆ࢔࣮ࢡ⁐᥋ࣉࣟࢭࢫ࡟࠾ࡅࡿࣉࣛࢬ࣐࡟ࡼࡿ⿕⁐᥋㔠ᒓࡢ⁐⼥㐣⛬࡛ࣔࢹࣝ໬ࡍࡿࡓࡵ㸪⾲㠃࡟࠶ࡿィ⟬⢏Ꮚ࡟ࡣඛ⾜◊✲>@࡟ᇶ࡙࠸࡚⇕⏕ᡂࡢຠᯝࢆ୚࠼ࡓ㸬 ィ⟬⤖ᯝᅗ  ࡟ィ⟬㡿ᇦࡢᴫ␎ᅗࢆ♧ࡍ㸬 PP ‫ ݔ‬î PP ‫ ݕ‬î PP ‫ࡢ ݖ‬
686 ࡢᖹᯈࢆ㓄⨨ࡋ㸪‫ݔ‬᪉ྥ࡜㔜ຊ᪉ྥࡢ࡞ࡍゅࢆ ࡜タᐃࡍࡿࡇ࡜࡛㸪
ഴᩳゅࢆ⾲⌧ࡋࡓ㸬ࡲࡓ ‫   ݖ ݕ ݔ‬PPPPPP ࡢ఩⨨࠿ࡽ㸪PV ࡢ࿘ᮇ࡛㸪⁐⁲ࢆെ‫ݖ‬᪉ྥ࡟ึ㏿ PV ࡛⁲ୗࡋࡓ㸬ᅗ  ࡟ྛ᫬้࡟࠾ࡅࡿィ⟬⤖ᯝࡢ㫽▔ᅗ࠾ࡼࡧ‫ ݕ‬ൌ ͳ͵Ǥ͹ͷPP ࡢ఩⨨࡛ࡢ᩿㠃ࡢࢫࢼࢵࣉࢩࣙࢵࢺࢆ♧ࡍ㸬⅊Ⰽࡢ⢏Ꮚࡣᖹᯈ㸪㉥Ⰽࡢ⢏Ꮚࡣᾮ┦㸪㯮Ⰽࡢ⢏Ꮚࡣ෌จᅛࡋࡓᅛ┦ࢆ⾲ࡍ㸬ᅛయ㔠ᒓࡀ⁐⼥ࡋࡣࡌࡵ㸪ࡑࡢᚋ‫ݔ‬᪉ྥ࡟ὶࢀ
ࡓ㸬‫ ݐ‬ൌV ௨๓࡛ࡣ㸪ᅗ  E ࡟㯤Ⰽࡢ෇࡛♧ࡍࡼ࠺࡟㸪⁐⼥㔠ᒓࡀ⁐⼥ᇦࡢእ⦕࡛ᑡࡋ┒ࡾୖࡀࡗ࡚จᅛࡍࡿࡇ࡜࡛ሐ㜵≧࡟࡞ࡾ㸪ࡑࡇ࡟⁐⼥㔠ᒓࡀࡏࡁ)LJ&RPSXWDWLRQDOGRPDLQṆࡵࡽࢀ࡚⁀ࡲࡗ࡚࠸ࡗࡓ㸬‫ ݐ‬ൌ V ࡟࡞ࡿ࡜㸪ࡏࡁṆࡵࡽࢀ࡚࠸ࡓ⁐⼥㔠ᒓࡀሐ㜵ࢆ஌ࡾ㉺࠼࡚‫ݔ‬᪉ྥ࡟኱ࡁࡃὶࢀฟࡋࡓ㸬ࡇࡢ࡜ࡁ㸪ᅗ  F ࡟㯤Ⰽࡢ෇࡛♧ࡍࡼ࠺࡟㸪ὶୗࡍࡿ⁐⼥㔠ᒓࡢእ⦕ࡀจᅛࡋ࡚ሐ㜵≧࡟࡞ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡲࡓ㸪㯮Ⰽࡢ෇࡛♧ࡍࡼ࠺࡟㸪ὶୗࡋࡓ⁐⼥㔠ᒓࡣࡑࡢඛ➃ࡀ୸ࡳࢆᖏࡧࡓᙧ≧࡟࡞ࡗࡓ㸬ࡑࡢᚋ㸪᫬㛫⤒㐣࡟క࠸㸪ὶࢀฟࡋࡓ⁐⼥㔠ᒓࡣᅛᾮ⏺㠃࡛෭ࡸࡉࢀࠊ඲యࡀจᅛࡋࡓ㸬ࡉࡽ࡟᫬㛫ࡀ⤒㐣ࡍࡿ࡜㸪෌ࡧ⁐⼥ụ࠿ࡽ⁐⼥㔠ᒓࡀ⁄ࢀฟࡋ㸪ᅗ  G ࡟♧ࡍࡼ࠺࡟จᅛࡋࡓ㔠ᒓࡢୖࢆὶࢀ࡚࠸
ࡃᵝᏊࡀ☜ㄆࡉࢀࡓ㸬− 20 −)LJ0ROWHQPHWDOIORZRQWKHWLOWHGVXUIDFH D DWW V E DWW V F DWW V G DWW V ほᐹ࠾ࡼࡧᐇ⌧㇟࡜ࡢẚ㍑
 ⁐ᒾሐ㜵 እ⦕࡛෭࠼ᅛࡲࡗࡓ⁐ᒾࡢࡇ࡜ࢆ⁐ᒾሐ㜵>@࡜࿧ࡪ㸬ᅗ D ࡟⁐ᒾሐ㜵ࡢᶍᘧᅗࢆ♧ࡍ㸬⁐ᒾሐ㜵ࡣ⁐ᒾὶࡢእ⦕ࡀ෭༷ࡉࢀจᅛࡍࡿࡢ࡟ᑐࡋ࡚㸪⁐ᒾὶࡢෆ㒊ࡣ෭࠼࡟ࡃࡃὶࢀ⥆ࡅࡿࡇ࡜࡟ࡼࡗ࡚ᙧ
ᡂࡉࢀࡿ㸬ᅗ E ࡟♧ࡍ‫ ݐ‬ൌ ͵ǤʹͷV࡟࠾ࡅࡿ‫ ݔ‬ൌ ʹʹǤͲPP࡛ࡢ\]᩿㠃ࢆぢࡿ࡜㸪ୗ㒊࡜ഃ㒊࡟ሐ㜵ᙧ≧ࡀᙧᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬ᅗ࡟㸪‫ ݐ‬ൌ ͵ǤʹͷV࡟࠾ࡅࡿศᕸࢆ♧ࡍ㸬ࡇࡇ࡛㸪⅊Ⰽࡢ⢏Ꮚࡣࡑࡢᗘᗘࡀ686

>@

ࡢ⼥Ⅼ࡛࠶ࡿͳ͹ͷͲ. ௨ୗࡢᅛ┦⢏Ꮚ࡛࠶ࡿࡇ࡜ࢆ♧ࡍ㸬ὶୗࡍࡿ⁐⼥㔠ᒓࡢእ⦕㒊࡟ࡣపᙧᡂࡉࢀࡿ୍᪉࡛㸪ࡑࡢෆ㒊ࡢࡢจᅛ㡿ᇦࡀ

ᗘࡣ⼥Ⅼࡼࡾ㧗ࡃ㸪㔠ᒓࡀᾮ┦࡜ࡋ࡚ὶୗࡍࡿᵝᏊࡀ☜ㄆ࡛ࡁ㸪ᮏィ⟬ᡭ )LJ/DYDOHYHHV D VFKHPDWLFGLDJUDP E VLPXODWLRQἲ࡟࠾࠸࡚ࡶ⁐ᒾሐ㜵ࡢᙧᡂ࡜ྠᵝࡢ࣓࢝ࢽࢬ࣒࡛ UHVXOWDWW Vሐ㜵ᙧ≧ࡢᙧᡂࢆ෌⌧࡛ࡁࡿࡇ࡜ࡀ♧ࡉࢀࡓ㸬 ඛ➃ᙧ≧ ィ⟬⤖ᯝ㸦ᅗ  F 㸧ࢆ 56FKRWW Ặ࡟ࡼࡗ࡚᧜ᙳࡉࢀࡓ࢟ࣛ
࢚࢘࢔ᒣ࡟࠾ࡅࡿࣃ࣍࢖࣍࢖ࢺ࢘ࡢ෗┿>@࡜ẚ㍑ࡍࡿ㸬ᮏࢩ࣑࣮ࣗࣞࢩࣙ
ࣥ⤖ᯝ࡛⌧ࢀࡓ㸪ὶୗ᫬࡟࠾ࡅࡿ⁐⼥㔠ᒓࡢඛ➃ᙧ≧ࡣ㸪ᐇ㝿ࡢࣃ࣍࢖࣍࢖⁐ᒾඛ➃ࡢࡘࡲඛ㸦ࢺ࢘㸧 ᙧ≧࡜ྠᵝ࡟୸ࡳࢆᖏࡧࡓᙧ≧࡛࠶ࡗࡓ㸬ࡲࡓ㸪จᅛ᫬࡟ࡣࡑࡢඛ➃ࡀ୸ࡃ┒ࡾୖࡀࡗࡓᙧ≧࡜࡞ࡗࡓࡀ㸪ࡇࢀࡣᩥ⊩ >@࡟♧ࡉࢀ࡚࠸ࡿ࢚࢟ࣛ࢘࢔ᒣ࡟࠾࠸࡚จᅛࡋࡓࣃ࣍࢖࣍࢖⁐ᒾࡢඛ➃࡛ぢࡽࢀࡿᙧ≧࡜㢮ఝࡋ࡚࠸ࡓ㸬ࡲࡓ㸪จᅛ㡿ᇦࡢୖࢆ෌ࡧᾮయࡀ
ὶࢀ㸪ࡇࡢ୸ࡃ┒ࡾୖࡀࡗࡓඛ➃ᙧ≧ࡀ㐃࡞ࡿᵝᏊࡶ㢮ఝࡋ࡚࠸ࡓ㸬

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Ⅳ㓟࢞ࢫ⎔ቃ㸧୰࡛஺ὶ*7$ࢆⓎ⏕ࡉࡏ㸪ࡑࡢ≉ᛶࢆㄪᰝࡍࡿࡓࡵ࡟ྛ✀ࡢィ࡟⾜ࡗࡓ,5ἲ ㉥እ⥺ࣉࣛࢬ࣐デ᩿ἲ ࢆ⏝࠸ࡓィࢆ⾜࠺ࠋ௒ᅇࡣࡇࢀࡲ࡛

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㏿ᗘ࣓࢝ࣛ ISV ࡛஺ὶ࢔࣮ࢡ +] ࢆ᧜ᙳࡋࡓࠋ㉥እ⥺⏬ീࡢ㍤ᗘ࡜ᨺᑕᙉᗘࡢ㛵ಀࢆᚓࡿࡓࡵ࡟
ࡣᶆ‽ග※ࢆ฼⏝ࡋࡓࠋղࣛࣥࢢ࣑ࣗ࢔ࣉ࣮ࣟࣈἲ࡛ࡣ㸪┿✵ࢳࣕࣥࣂෆ࡟㸪)LJ࡟♧ࡍࣛࣥࢢ࣑ࣗ࢔ࣉ࣮ࣟࣈ⿦⨨ࢆ⤌ࡳ㎸ࢇࡔࠋ஺ὶ࢔࣮ࢡࢆᢅ࠺ࡓࡵ㸪㐃⥆ࡍࡿ෌Ⅼᘼ࡟క࠺ࣀ࢖ࢬᑐ⟇࡜ࡋ࡚㸪せᡤ࡟ࣇ࢙ࣛ࢖ࢺࢥ࢔ࢆ⏝࠸ࡓࠋィࡋࡓࣉ࣮ࣟࣈ㟁ὶ㸪㟁ᅽࡢ⤖ᯝ࡜ࣉ࣮ࣟࣈ⌮ㄽ࡟ᇶ࡙ࡁ㸪㟁Ꮚᗘࡸ㟁Ꮚᐦᗘࢆ⟬ฟࡋࡓࠋࣉࣟ

࣮ࣈࡣPPࡢࢱࣥࢢࢫࢸࣥ⥺ࢆ࢔࣑ࣝࢼ⤯⦕⟶࡛そࡗ࡚స〇ࡋ㸪࣮ࣔࢱࢆ⏝࠸࡚࿘㏿ᗘPPV࡛ᅇ㌿ࡉࡏ࢔࣮ࢡ࡟౵ධࡉࡏࡿ㸬࣮ࣔࢱࡣ;=ࢫࢸ࣮ࢪ࡜࡜ࡶ࡟ᵓᡂࡉࢀ࡚࠸ࡿࡓࡵ௵ពࡢ㧗ࡉࡢࣉ࣮ࣟࣈ
ᐃࡀ⾜࠼ࡿ㸬Ⓨಙᶵ࡜ቑᖜჾ࡟ࡼࡾN+]ࡢ୕ゅἼࢆ༳ຍࡋࡓࣉ࣮ࣟࣈࢆ஺ὶ*7$࡟ᤄධࡍࡿࡇ࡜࡛㸪୕
ゅἼࡢ༙࿘ᮇࡈ࡜࡟ࣉࣛࢬ࣐ࡢ≉ᛶࢆ▱ࡿࡇ࡜ࡀ࡛ࡁࡿࠋ
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− 22 −

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࠿ࡗࡓࠋࡲࡓ㸪㟁Ꮚᐦᗘศᕸࡢእᙧ࠿ࡽศ࠿ࡿࡼ࠺࡟㸪Ẽᅽࡀపࡃ࡞ࡿ࡟ࡘࢀ࢔࣮ࢡࡣᣑᩓࡍࡿࡇ࡜ࡀ
ศ࠿ࡗࡓࠋ௒ᚋࡣ㸪኱Ẽࡸ⁐᥋ࣃ࣓࣮ࣛࢱࡀ࢔࣮ࢡ࡬୚࠼ࡿᙳ㡪ࢆㄪᰝࡍࡿணᐃ࡛࠶ࡿࠋ
ղࣛࣥࢢ࣑ࣗ࢔ࣉ࣮ࣟࣈἲ࡟ࡼࡾィࡋࡓᆅ⌫኱Ẽ୰ࡢࣉ࣮ࣟࣈ㟁ὶ᭤⥺ࢆ )LJ ࡟♧ࡍ㸬ᐇ㦂᮲௳ࡣ㸪࢔࣮ࢡ㟁ὶࢆ $㸪࢔࣮ࢡ㛗ࢆ PP㸪$U ࢞ࢫὶ㔞ࢆ /PLQ㸪ࣉ࣮ࣟࣈࡣẕᮦࡼࡾ PP ࡢ㧗ࡉ࡜ࡋࡓࠋᅗ
ࡼࡾ㸪஺ὶ࢔࣮ࢡ࡟ᑐࡋ࡚ࡶࣛࣥࢢ࣑ࣗ࢔
ࣉ࣮ࣟࣈ࡛ࡢィࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧ࡉࢀ㸪௒ᅇࡢ᮲௳࡛ࡣ㟁ᴟ࣐࢖ࢼࢫ㸦ᅗ୰ࡢ㟁ᅽࡢṇഃ㸧࡛ࡣ⣙  Ⅼ㸪㟁ᴟࣉࣛࢫ㸦ᅗ୰ࡢ㟁ᅽࡢ㈇ഃ㸧࡛ࡣ⣙  Ⅼࡢィ࡛࠶ࡗࡓࠋලయⓗ࡞㟁Ꮚࡀྍ⬟ᗘ㸪㟁Ꮚᐦᗘࡢ

⟬ฟ࡟ࡘ࠸࡚ࡣ௒ᚋ⾜ࡗ࡚࠸ࡃࠋ␲ఝⅆᫍ኱Ẽ୰࡟࠾࠸࡚ࡶィ)LJ3UREHFXUUHQWLQWKH(DUWKDWPRVSKHUH

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ᐃࡀᅔ㞴࡛࠶ࡗࡓࠋపᅽ୰࡛࠶ࡿࡇ࡜࠿ࡽ㸪㟁ᴟࣉࣛࢫ᫬࡟࢔࣮ࢡࡀⅬᘼࡋ࡞࠸ࡇ࡜ࡀከ࠸ࡇ࡜ࡀཎᅉ࡛࠶ࡿࠋ࢔
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ࡣྍ⬟࡛࠶ࡿࡓࡵ㸪ヨ⾜ᅇᩘࢆቑࡸࡍࡇ࡜࡛ᑐ⟇ࡋࡼ࠺࡜⪃࠼࡚࠸ࡿࠋ

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7DEOH([SHULPHQWDOFRQGLWLRQV

➃ゅ ᗘࡢ ZW㓟໬ࢺ࣒ࣜ࢘ධࡾࢱࣥࢢࢫࢸࣥ㟁ᴟ㸪㝧ᴟ࡟ࡣỈ෭:HOGLQJFXUUHQW㖡ࣈࣟࢵࢡ PPPPPPWKLFN ࢆ⏝࠸࡚㟼Ṇࢸ࢕ࢢ࢔࣮ࢡᨺ

6KLHOGLQJJDV

3XUHDUJRQ㟁ࢆ⾜ࡗࡓ㸬࢔࣮ࢡᨺ㟁ᚋ࡟ࡣ㟁ᴟඛ➃㒊ࢆษ᩿࣭᥇ྲྀࡋ㸪⇕◳໬ᛶᶞ*DVIORZUDWH/㺃PLQ⬡࡟ᇙࡵ㎸ࡳ㸪㟁ᴟࡢ㍈᪉ྥ࡟ᑐࡍࡿ୰ᚰ᩿㠃ࡀ⌧ࢀࡿࡼ࠺◊☻ࡋࡓ㸬(OHFWURGHH[WHQVLRQPPࡑࡋ࡚㙾㠃௙ୖࡆࡉࢀࡓ㟁ᴟ୰ᚰ᩿㠃࡟ᑐࡋ࡚㸪࢚ࢿࣝࢠ࣮ศᩓᆺ ; ⥺$UFOHQJWKPP

ศᯒ ('6(QHUJ\'LVSHUVLYH;UD\6SHFWURVFRS\ ࢆ⏝࠸࡚ඖ⣲࣐ࢵ:HOGLQJWLPHPLQ

$

ࣆࣥࢢࢆ⾜ࡗࡓ㸬ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ )LJ  ࡟࢔࣮ࢡᨺ㟁๓ᚋ࡛ࡢ㟁ᴟࡢ෗┿ࢆ♧ࡍ㸬 E ࢔࣮ࢡᨺ㟁࠿ࡽ  ศᚋࡢ㟁ᴟ⾲㠃࡛ࡣ≉࡟ඛ➃㒊࡟࠾࠸࡚㸪 D ᨺ㟁๓ࡢ◊๐⑞ࡣ࡯࡜ࢇ࡝☜ㄆࡉࢀࡎ㸪⾲㠃≧ែࡀኚ໬ࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓ㸬ࡇࡢኚ໬ࡣඛ➃࠿ࡽ⣙  PP ୖ᪉ࡢ㡿ᇦࡲ࡛ほᐹࡉࢀࡓ㸬)LJ  ࡟࢔࣮ࢡᨺ㟁࠿ࡽ  ศᚋࡢ㟁ᴟ )LJ  E ᩿㠃࡟࠾ࡅࡿ : ࡜ 7K
ࡢඖ⣲࣐ࢵࣆࣥࢢࢆ♧ࡍ㸬7K ࡣ㟁ᴟඛ➃㒊࠿ࡽ⣙ PP ୖ᪉ࡲ࡛ῶᑡࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓ㸬ࡇࡢῶᑡഴྥ
ࡣඛ⾜◊✲࡛♧ࡉࢀ࡚࠸ࡿഴྥ>@࡜ࡼࡃ୍⮴ࡋ࡚࠾ࡾ㸪7K ࡣ㟁ᴟෆ㒊࠿ࡽ⾲㠃࡬ࡢᣑᩓ࡞ࡽࡧ࡟⾲㠃࡛ࡢ⵨Ⓨ࡟ࡼࡗ࡚ᚎࠎ࡟ῶᑡࡋࡓ࡜᥎ᐹࡉࢀࡓ㸬ࡇࡇ࡛㟁ᴟඛ➃㒊࠿ࡽ⣙  PP ୖ᪉ࡢ㟁ᴟ⾲㠃࡟࠾࠸࡚ 7K ࡢ⃰໬ࡀ☜ㄆ࡛ࡁࡓࡓࡵ㸪ࡉࡽ࡟㧗ಸ⋡࡛ศᯒࢆᐇ᪋ࡋࡓ㸬)LJ ࡟ 7K ࡢ⃰໬㡿ᇦࡢᣑ኱෗┿ࢆ♧ࡍ㸬㟁ᴟ⾲㠃ࡢ୍㒊࡟࠾࠸
࡚ᩘ wP ཌࡢ 7K ࡢ⃰໬ࡀㄆࡵࡽࢀࡓ㸬୍᪉㸪: ෆ㒊࡟ࡣ⢏≧ࡢ 7K ࡀ」ᩘᩓぢࡉࢀ㸪ᨺ㟁๓࡜኱ࡁࡃኚࢃࡽ࡞࠸ศ
ᕸ࡛࠶ࡗࡓ㸬ࡋࡓࡀࡗ࡚㸪7K ࡣ㟁ᴟࡢ⾲ᒙ௜㏆࡛ࡣ࡞ࡃ⾲㠃ࡢ୍㒊࡛⃰໬ࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬ࡲࡓ㸪ࡇࡢ⃰໬㡿ᇦࡣ )LJ ࡛ぢࡽࢀࡓ⾲㠃≧ែࡀኚ໬ࡋ࡚࠸ࡿ㡿ᇦ࡜఩⨨ࡀᴫࡡ୍⮴ࡋ࡚࠸ࡓ㸬ඛ⾜◊✲࡛ࡣ㸪ࢸ࢕ࢢ࢔࣮ࢡᨺ㟁ᚋࡢ ZW㓟໬ࣛࣥࢱࣥධࡾࢱࣥࢢࢫࢸࣥ㟁ᴟ⾲㠃ࡢ୍㒊࡛ /D ࡢ⃰໬㡿ᇦࡀ☜ㄆࡉࢀ࡚࠾ࡾ㸪ࡇࡢ /D ࡢ⃰໬㡿ᇦ㏆ഐ࡟࠾࠸࡚ࡣࣛࣥࢱࣥཎᏊࡸ୍౯ࣛࣥࢱࣥ࢖࢜ࣥࡢⓎගࢫ࣌ࢡࢺࣝࡀィࡉࢀ࡚࠸ࡿ>@㸬ࡲࡓࢸ࢕ࢢ࢔࣮ࢡ✵㛫࡟࠾࠸࡚㸪࢖࢜ࣥ໬ࡋࡓ㔠ᒓ⵨Ẽࡣ㟁ᴟ㏆ഐࡢᙉ࠸㟁ሙ࡟ࡼࡗ࡚㝜ᴟ࡛࠶ࡿࢱࣥࢢࢫࢸࣥ㟁ᴟ⾲㠃࡬㍺㏦ࡉࢀ㸪ሁ✚ࡍࡿࡇ࡜ࡶሗ࿌ࡉࢀ࡚࠸ࡿ>@㸬௒ᅇ㸪ほᐹ࡛ࡁࡓ 7K ࡢ⃰໬ࡣ㟁ᴟ⾲㠃ࡢ୍㒊࡟࠾࠸࡚⏕ࡌ࡚࠾ࡾ㸪ඛ⾜◊✲࡜ྠᵝ࡛࠶ࢀࡤ㸪㟁ᴟඛ➃㒊⾲㠃࠿ࡽ⵨Ⓨࡋࡓ 7K ⵨Ẽࡀࢸ࢕ࢢ࢔࣮ࢡ✵㛫࡛࢖࢜ࣥ໬ࡋ㸪ᙉ࠸㟁ሙ࡟ࡼࡗ࡚㟁ᴟ㸦㝜ᴟ㸧࡬㍺㏦ࡉࢀ㸪㟁ᴟ⾲㠃ࡢ୍㒊࡟ሁ✚ࡋࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬

− 24 −)LJ 3KRWRJUDSKVRIWXQJVWHQHOHFWURGH

)LJ &URVVVHFWLRQDO HOHPHQWDO PDSSLQJV IRU WKHWXQJVWHQHOHFWURGHDIWHUZHOGLQJIRUPLQXWHV)LJ (QODUJHGYLHZRIDSDUWLDOUHJLRQRI)LJ⤖ゝࢸ࢕ࢢ࢔࣮ࢡᨺ㟁ᚋࡢ㟁ᴟࡢ⾲ᒙ௜㏆࡛ࡣ࡞ࡃ⾲㠃࡟࠾࠸࡚㸪㓟໬≀ࡢ⃰໬㡿ᇦࡀ୍㒊ฟ⌧ࡍࡿࡇ࡜ࡀ᫂ࡽ࠿
࡜࡞ࡗࡓ㸬ඛ⾜◊✲ࡢ⤖ᯝ࠿ࡽ㸪⃰໬㡿ᇦࡣࢸ࢕ࢢ࢔࣮ࢡ✵㛫࡟࠾࠸࡚࢖࢜ࣥ໬ࡋࡓ 7K ࡀሁ✚ࡋࡓ㡿ᇦ࡜⪃࠼ࡽࢀࡿࡓࡵ㸪௒ᚋࡣ⃰໬㡿ᇦ㏆ഐ࡟࠾ࡅࡿࣉࣛࢬ࣐ศගィ ࡸࢱࣥࢢࢫࢸࣥ㟁ᴟࡢᴟᛶࢆධࢀ᭰࠼ࡓᐇ㦂ィ ࢆᐇ᪋ࡋ㸪⃰໬㡿ᇦࡢฟ⌧࣓࢝ࢽࢬ࣒ゎ᫂࡟ྲྀࡾ⤌ࡴ㸬㓟໬≀ࡢ㟁ᴟෆ㒊࠿ࡽ⾲㠃࡬ࡢ౪⤥ࡢࡳ࡛࡞ࡃ㸪㟁ᴟ⾲㠃࠿ࡽ
⵨Ⓨᚋࡢ㓟໬≀ᣲືࡲ࡛⌮ゎࡀ῝ࡲࡿࡇ࡜࡛㸪ࡉࡽ࡞ࡿ㟁ᴟᑑ࿨ࡢྥୖࡀᮇᚅࡉࢀࡿ㸬


ཧ⪃ᩥ⊩

>@ 0 7DQDNDHWDO -3K\V'$SSO3K\V   
>@ . .RQLVKLHWDO4--SQ:HOG6RF   LQ-DSDQHVH>@ .7DQDND HWDO:HOG/HWWHU   :/:/>@ .7DQDNDHWDO4--SQ:HOG 6RF   LQ-DSDQHVH>@ -;LDQJHWDO- 3K\V'$SSO3K\V   
>@ -;LDQJ HWDO$SSO0DWK0RGHO   
>@ .7DQDNDHWDO6FL7HFK:HOG-RLQ   

㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 25 −

⁐᥋࢔࣮ࢡ⌧㇟㸪⁐⼥ụ⌧㇟࠾ࡼࡧ⁐᥋㍺㏦⌧㇟ゎᯒ☢ሙࢆ⏝࠸ࡓ7,*⁐᥋ࡢ⁐ࡅ㎸ࡳ࣓࢝ࢽࢬ࣒ࡢゎ᫂࡟㛵ࡍࡿ◊✲ᡤᒓ㸸⌰⌫኱Ꮫ ᕤᏛ㒊Ặྡ㸸ᯇ⏣୍᪼ ┠ⓗᮏ◊✲ࡣ㸪⁐⼥ụෆࢆὶࢀࡿ㟁ὶ࡟ᑐࡋ࡚እ㒊☢
ሙࢆ௜ຍࡍࡿࡇ࡜࡟ࡼࡾ㸪࢔࣮ࢡ࠾ࡼࡧ⁐⼥ụෆ࡟Ⓨ⏕ࡍࡿ㟁☢ຊࢆ⏝࠸࡚㸪⁐⼥㔠ᒓࡢὶࢀ࡜ࣅ࣮ࢻ
ᙧ≧ࢆไᚚࡍࡿ᪂ࡋ࠸⁐᥋ἲࡢ◊✲࡛࠶ࡿ㸬ඛ⾜◊✲࡟࡚㸪ཌᯈࡢࢸ࢕ࢢ⁐᥋࡟☢ሙࢆ௜ຍࡍࡿࡇ࡜࡟
ࡼࡾ㸪⁐⼥ụෆ࡟ୗྥࡁ㸦㔜ຊ᪉ྥ㸧ࡢ㟁☢ຊࢆⓎ⏕ࡉࡏ㸪⁐㎸ࡳቑ኱ࢆヨࡳࡓ㸬ࡑࡢ⤖ᯝ㸪㝈ࡽࢀࡓ᮲௳࡛ࡣ࠶ࡿࡀ⁐㎸ࡳࢆቑ኱ࡉࡏࡿࡇ࡜ࡀ࡛ࡁࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪☢ሙࢆ௜ຍࡍࡿ☢ᴟࡢ఩⨨࠾ࡼࡧ☢
ሙศᕸࡢഹ࠿࡞㐪࠸࡟ࡼࡾ㸪㏫࡟⁐㎸ࡳࡀὸࡃ࡞ࡿ
ሙྜࡶከࠎ⏕ࡌ㸪ලయⓗ࡟௜ຍࡋࡓ☢ሙࡀ࡝ࡢࡼ࠺
࡟⁐㎸ࡳ࡟ᙳ㡪ࢆ࠾ࡼࡰࡍ࠿ࡣ୙࡛᫂࠶ࡿ㸬ࡑࡢ࣓࢝ࢽࢬ࣒ࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟㸪ࡇࢀࡲ࡛࡟㸪࢔࣮ࢡࡸ⁐⼥ụ⾲㠃ὶࢀࡢほ 㸪3,9 ゎᯒ࡟ࡼࡿ⁐⼥ụ⾲㠃ὶࢀࡢὶືゎᯒ㸪஧Ⰽἲ࡟ࡼࡿ⁐⼥ụ⾲㠃ࡢᗘィ ࠾ࡼࡧࣅ࣮ࢻ᩿㠃ࡢほ ࢆ⾜ࡗࡓ㸬ࡇࢀࡽࡢ⤖ᯝࡼࡾ⁐⼥ụෆ࡟Ⓨ⏕ࡋࡓ㟁☢ຊ࡟ࡼࡾ㸪⁐⼥ụෆࡢὶືࢆᙉไⓗ࡟ಁ㐍ࡍࡿࡇ࡜࡟ࡼࡾ⁐㎸ࡳࡀቑຍࡋࡓ࡜⪃࠼ࡽࢀࡿࡀ㸪ලయⓗ࡞⁐㎸ࡳቑຍ࣓࢝
ࢽࢬ࣒࡟㛵ࡋ࡚ࡣ᥎ ࡢᇦࢆ⬺ࡋ࡚࠸࡞࠸㸬 ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪┤᥋⁐⼥ụෆࡢὶືࢆほ ࡍࡿࡇ࡜ࡀ࡛ࡁࡿ㸪኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤࡢࠕ㧗㍤
ᗘ ; ⥺㏱㐣ᆺ⁐᥋⌧㇟  ḟඖྍど໬ࢩࢫࢸ࣒ࠖࢆ฼
⏝ࡉࡏ࡚࠸ࡓࡔࡁ㸪ࠕ☢ሙࢆ⏝࠸ࡓࢸ࢕ࢢ⁐᥋ࡢ⁐ࡅ㎸ࡳ࣓࢝ࢽࢬ࣒ࠖࢆヲ⣽࡟ㄪ࡭ࡓ㸬ࡇࢀࡽࡢ⁐㎸ࡳቑ኱࣓࢝ࢽࢬ࣒ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜࡟ࡼࡾ㸪☢ሙࢆ⏝࠸ࡓࢸ࢕ࢢ⁐᥋ࡢ㐺⏝ᣑ኱ࢆ┠ᣦࡍ㸬 ᐇ㦂⿦⨨࠾ࡼࡧண ࡉࢀࡿ࢔࣮ࢡ࠾ࡼࡧ⁐⼥ụෆࡢ㟁ὶ࠾ࡼࡧ㟁☢ຊศᕸ㸬ࢸ࢕ࢢ⁐᥋࡟☢໬ࢥ࢖ࣝࢆタ⨨ࡋࡓᐇ㦂⿦⨨ᵓᡂᅗ࠾ࡼࡧ☢ሙࢆ௜ຍࡋࡓሙྜ࡟㸪ண ࡉࢀࡿ࢔࣮
ࢡ࠾ࡼࡧ⁐⼥ụෆࡢ㟁ὶศᕸ㸪㟁☢ຊศᕸࢆᅗ  ࡟♧ࡍ㸬ᐇ㦂⿦⨨ࡣ୺࡟ࢺ࣮ࢳ㸪 ࡘࡢᑠᆺ☢໬ࢥ࢖ࣝ࠾ࡼࡧẕᮦ࡛ᵓᡂࡉࢀ࡚࠸ࡿ㸬☢໬ࢥ࢖ࣝࡣ⁐᥋⥺ࢆ㊬ࡄࡼ࠺࡟ࢺ࣮ࢳഃ࡟タ⨨ࡋࡓ㸬ࡲࡓ  ࡘࡢ☢
໬ࢥ࢖ࣝࡣ┤ᚄ PP ࡢ⪏⇕⿕そᑟ⥺ࢆ  ᅇ㌾㗰〇㕲ᚰ࡟ᕳࡁ௜ࡅࡿࡇ࡜࡛స〇ࡋ࡚࠾ࡾ㸪⪏⇕ࢸ࣮ࣉ࡛ಖㆤࡋ࡚࠸ࡿ㸬࡞࠾ᅗ  ࡣ⣬㠃ࡢ⾲࠿ࡽ⿬᪉ྥ

,:$UFFXUUHQW>$@%;0DJQHWLFIOX[>P7@
)$(OHFWURPDJQHWLFIRUFHJHQHUDWHGLQDUF>1@
)0''RZQZDUGHOHFWURPDJQHWLFIRUFHJHQHUDWHGLQPROWHQSRRO>1@
)088SZDUGHOHFWURPDJQHWLFIRUFHJHQHUDWHGLQPROWHQSRRO>1@

)LJ([SHULPHQWDOVHWXSRI7,*ZHOGLQJDGGHG
ZLWK QHJDWLYH PDJQHWLF ILHOG DQG SUHGLFWHG
FXUUHQWDQGHOHFWURPDJQHWLFIRUFHGLVWULEXWLRQLQ
DUFDQGZHOGSRRO ࡟☢ሙࢆ௜ຍࡋࡓሙྜ㸦௨㝆㸪ࡇࡢሙྜࢆ࣐࢖ࢼࢫ
ࡢ☢ሙ࡜ࡍࡿ㸧࡛࠶ࡾ㸪⁐᥋᪉ྥࡣྑ᪉ྥ࡛࠶ࡿ㸬ࡲࡓ㟁ᴟ┤ୗࡢẕᮦ⾲㠃ࢆཎⅬ࡜ࡋ㸪⁐᥋᪉ྥࢆ <ẕᮦ࡟୪⾜࠿ࡘ⁐᥋⥺࡟ᆶ┤᪉ྥࢆ ;㸪ẕᮦ࡟ᆶ┤᪉ྥࢆ = ࡜ࡋࡓ㸬ᅗࡢࡼ࠺࡟ࢺ࣮ࢳࢆ࣐࢖ࢼࢫᴟ㸪ẕᮦࢆࣉࣛࢫᴟ࡟᥋⥆ࡍࡿ࡜㸪ࣇ࣑ࣞࣥࢢࡢᕥᡭࡢ
ἲ๎࡟ࡼࡾ㸪࢔࣮ࢡ࡟ࡣᚋ᪉㸦⁐᥋᪉ྥ࡟ᑐࡋ࡚㏫
᪉ྥ㸧࡬ࡢ㟁☢ຊࡀ⏕ࡌࡿ㸬ࡑࡢࡓࡵ࢔࣮ࢡࡣᚋ᪉
࡟೫ྥࡍࡿ㸬㟁ᴟ┤ୗࡢ⁐⼥ụ࡟ࡣୗྥࡁࡢ㟁☢ຊ㸪㟁ᴟᚋ᪉ࡢ⁐⼥ụ࡟ࡣୖྥࡁࡢ㟁☢ຊࡀ⏕ࡌࡿ㸬࡞࠾ࣉࣛࢫࡢ☢ሙࢆ௜ຍࡋࡓሙྜ㸪࢔࣮ࢡ࠾ࡼࡧ⁐⼥ụ࡟ࡣ㸪ࡑࢀࡒࢀᅗ  ࡜ࡣ㏫᪉ྥࡢ㟁☢ຊࡀ⏕ࡌࡿ㸬࡞࠾☢ሙࡢྥࡁࢆ࿘ᮇⓗ࡟ኚ࠼ࡿ஺ὶ☢ሙࢆ௜ຍࡋࡓሙྜࡣ㸪࢔࣮ࢡ࠾ࡼࡧ⁐⼥ụ࡟࿘ᮇⓗ࡟๓ᚋࡲࡓࡣୖୗ᪉ྥࡢ㟁☢ຊࡀ⏕ࡌࡿ㸬ẕᮦࡣᖜ PPî㛗ࡉ PP ᯈཌ PP ࡢ 686 ࢆ౑⏝ࡋࡓ㸬୺࡞⁐᥋᮲௳ࡣ࢔࣮ࢡ㟁ὶ ,: $㸪⁐᥋㏿ᗘ
9 PPV ࡛࠶ࡿ㸬ࡲࡓࢩ࣮ࣝࢻ࠾ࡼࡧࣂࢵࢡࢩ࣮
ࣝࢻ࢞ࢫ࡟ࡣ࢔ࣝࢦࣥ࢞ࢫࢆ⏝࠸ࡓ㸬௜ຍࡍࡿ☢᮰
ᐦᗘࡣ %; P7㸪஺ὶ☢ሙࡢሙྜࡢ☢໬࿘Ἴ− 26 −

ᩘࡣ I +] ࡜ࡋࡓ㸬⁐⼥ụෆ࡟ࡣࢺ࣮ࣞࢧ⢏Ꮚ࡜ࡋ࡚┤ᚄ PP ࡢࢱࣥࢢࢫࢸࣥ⢏Ꮚࢆΰධࡋࡓ ᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹᅗ  D ࡟⁐᥋㟁ὶ ,: $㸪☢ሙࢆ௜ຍࡋ࡚
࠸࡞࠸ %; P7 㸪㏻ᖖࡢࢸ࢕ࢢ⁐᥋ࡢ⁐⼥ụෆࡢࢺ࣮ࣞࢧ⢏Ꮚࡢ㌶㊧ࢆ♧ࡍ㸬࡞࠾ < PP ࡣ㟁ᴟ┤ୗࡢ⁐⼥㔠ᒓࡢὶࢀ࡛࠶ࡾ㸪= 㹼PP ࡢ⠊ᅖࡀẕᮦ࡛࠶ࡿ㸬ᅗࡼࡾ ,: $ ࡢሙྜ㸪ࢺ࣮ࣞࢧ⢏Ꮚࡣ㟁ᴟ㏆ഐ࡛ୖ᪼ࡋ㸪ࡑࡢᚋᛴ⃭࡟㝆ୗࡍࡿࡀ㸪= PP ⛬ᗘ࡟೵⁫ࡍࡿ㸬࡞࠾ඛ⾜◊✲  ࡟࠾࠸࡚㸪᭱⤊ⓗ࡟ࢺ࣮ࣞࢧ⢏Ꮚࡀ೵⁫ࡍࡿ఩⨨ࡣ⁐㎸ࡳ῝ࡉ࡜୍⮴ࡍࡿ஦ࡀ᫂ࡽ࠿࡟࡞ࡗ࡚࠸ࡿ㸬,: $ ࡢሙྜࡣᛴ⃭࡞ኚ໬ࡣ↓࠸ࡀ㸪ࡺࡗࡃࡾ࡜㝆ୗࡋ᭱⤊ⓗ࡟ࡣ = PP ࡟೵⁫ࡍࡿ㸬%; P7 ࡢ☢ሙࢆ௜ຍࡋࡓᅗ  E ࡣ㸪,: $ ඹ࡟㟁ᴟ㏻㐣ᚋ㸪ࡺࡗࡃࡾ࡜㝆ୗࡋ᭱⤊ⓗ࡟㸪= PP ⛬ᗘ࡛೵⁫ࡍࡿ㸬%; P7 ࡢ☢ሙࢆ௜ຍࡋࡓᅗ  F ࡛ࡣ㸪≉࡟,: $ ࡢሙྜ㸪㟁ᴟ㏻㐣ᚋ㸪ᛴ⃭࡟㝆ୗࡋ᭱⤊ⓗ࡟ = PP ⛬ᗘ࡟೵⁫ࡍࡿ㸬%; 㹼P7I +] ࡢ஺ὶ☢ሙࢆ௜ຍࡋࡓᅗ  G ࡛ࡣ㸪≉࡟ ,: 
$ ࡢሙྜ࡟ὀ┠ࡍࡿ࡜㸪ୖୗ᪉ྥ࡟኱ࡁࡃ᣺ືࡋ࡞
ࡀࡽᚎࠎ࡟㝆ୗࡋ࡚࠸ࡿ㸬ࡇࢀࡣ⁐⼥ụෆ࡟⏕ࡌࡿ࿘ᮇⓗ࡞ୖୗ᪉ྥࡢ㟁☢ຊࡢᙳ㡪ࡔ࡜⪃࠼ࡽࢀࡿ㸬%;  㹼 P7  I  +] ࡢ஺ὶ☢ሙࢆ௜ຍࡋࡓᅗ
 H ࡛ࡣ㸪ࢺ࣮ࣞࢧ⢏Ꮚࡣ㸪ୖୗ࡟᣺ືࡋ࡞ࡀࡽᚎࠎ
࡟㝆ୗࡋ࡚࠸ࡿᵝᏊࡀぢࡽࢀࡿ㸬  ⤖ㄽ
ࡇࢀࡽࡢ⤖ᯝࡼࡾ㸪࣐࢖ࢼࢫࡢ☢ሙࢆ௜ຍࡋࡓሙ
ྜ㸪⁐㎸ࡳࡀ῝ࡃ࡞ࡿഴྥࢆ♧ࡋࡓ㸬ࡇࢀࡣඛ⾜◊✲࡜ྠࡌഴྥ࡛᭷ࡾ㸪㟁ᴟ┤ୗࡢ⁐⼥ụ࡟⏕ࡌࡿᙉ࠸ୗྥࡁࡢ㟁☢ຊࡢᙳ㡪ࡔ࡜⪃࠼ࡽࢀࡿ㸬࡞࠾⁐㎸ࡳࡢ኱ࡁࡉࡣ࣐࢖ࢼࢫࡢ┤ὶ☢ሙࢆ௜ຍࡋࡓሙྜ
ࡀ኱ࡁ࠸㸬࡞࠾ྠࡌ࣐࢖ࢼࢫ☢ሙ࡛ࡶ㸪┤ὶ☢ሙࢆ௜ຍࡋࡓᅗ  F ࡢሙྜࡢ᪉ࡀ஺ὶ☢ሙࢆ௜ຍࡋࡓᅗ
 H ࡜ẚ㍑ࡋ࡚ഹ࠿࡟኱ࡁ࠸ࡀ㸪┤ὶ☢ሙࡢሙྜࡣ
࢔࣮ࢡࡢ೫ྥ࡟ࡼࡾ⁐᥋ࡀ୙Ᏻᐃ࡟࡞ࡿሙྜࡶ⏕ࡌࡓ㸬ࡇࢀࡲ࡛ࡢ⤖ᯝࡼࡾ㸪୍㒊ࡢ᮲௳࡛ࡣ࠶ࡿࡀ
☢ሙࡢ௜ຍ࡟ࡼࡿ⁐⼥㔠ᒓࡢὶືࡀ᫂ࡽ࠿࡟࡞ࡗ
ࡓࡀ㸪ࡲࡔ୙᫂࡞Ⅼࡶከࡃ㸪☢ሙ࡟ࡼࡿ⁐㎸ࡳቑຍ࣓࢝ࢽࢬ࣒ࡢゎ᫂࡟ࡣࡉࡽ࡞ࡿ᳨ドࡀᚲせ࡛࠶ࡿ㸬ཧ⪃ᩥ⊩  ᯇ⏣௚㸸⁐᥋Ꮫ఍඲ᅜ኱఍ㅮ₇ᴫ㸪
9RO   D %; P7

 E %; P7 

 F %; P7 

 G %; 㹼P7I +]

 H %; 㹼P7I +]

  ⏣୰㸸⁐᥋࢔࣮ࢡ≀⌮㸪⁐᥋Ꮫ఍ㄅ  㸪 㸪㸬

)LJ(IIHFWRIPDJQHWLFILHOGRQPROWHQPHWDOIORZ㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ไᚚᏛศ㔝㸧− 27 −᪂つ䜰䝰䝹䝣䜯䝇㓟໬≀༙ᑟయⷧ⭷ᙧᡂᢏ⾡䛾㛤Ⓨᡤ㻌 ᒓ㻌 㻌 ᮾிᕤᴗ኱Ꮫඖ⣲ᡓ␎ 0'; ◊✲䝉䞁䝍䞊Ặ㻌 ྡ㻌 㻌 ஭ᡭ㻌 ၨ௓̏ɿ 䛿䛨䜑䛻υΡηϕϪ΢ۨಊ༽മຜφϧϱζην 7)7  ͹οϡϋϩࡒྋͳ͢ͱɼΠϠϩϓΟη ,Q*D=Q2 D,*=2  Ͷେන͠ΗΖ࢐Կ෼ൔ಍ର͗༽͏ΔΗͱ͏Ζ>@ɽ͖͢͢ɼ࣏੊େυΡηϕϪ΢υώ΢ηͶͺɼ
SRO\6L7)7 Ͷ඘తͤΖ FP9V Ͷ‫߶΁ٶ‬Ңಊౕൔ಍ର͗‫ٽ‬ΌΔΗͱ͕ΕɼҢಊౕ͗ FP9V ఖౕ͹ D,*=2 Ͳͺͨ͹གྷ‫ٽ‬ͶԢ͓ΔΗ͵͏ɽ߶͏Ңಊౕ fFP9V  Νࣖͤ D,Q6Q=Q2 D,7=2 ͗஭໪͠Ηͱ͏Ζ͗ɼ߶҈ఈ͵ 7)7 ͹ࡠ੣ΤΡϱχΤ͗‫@> ͏ڳ‬ɽ߶Ңಊౕ͹໚͖ΔͺɼఁԻࡠ੣Ն೵
͵ଡ݃ধ࢐Կ෼ൔ಍ର΍ޫึͳ͢ͱ‫ݗ‬౾͠Ηͱ͏Ζɽͨ͞Ͳըʓͺɼືౕ൜‫਼ؖ‬๑ ')7  ‫ࢋܯ‬Ν༽͏
ͱɼ,*=2 ‫ܧ‬ϙϠϫΪη࢐Կ෼Ͷ͕͜ΖΫϡϨΠ༎ૻಝ੓ͳ૮҈ఈ੓͹Ҳൢదܑ޴Ν௒΄Ζ͞ͳͲɼ߶
Ңಊౕ͖ͯ߶҈ఈ͵৿͢͏࢐Կ෼ൔ಍ର͹અ‫ࢨܯ‬ਓΝಚΖ͞ͳΝ໪ࢨͪ͢ɽ
̐ɿ ‫಼ڂݜ‬༲ຌ‫Ͳڂݜ‬ͺɼ݃ধ ,*=2 ߑଆΝ‫خ‬Ͷ͢ͱ‫ݫ‬ો஖‫׷‬ϠυϩΝࡠ੔͢ɼుࢢߑଆ‫ࢋܯ‬Νߨͮͪɽ*D γ΢φ͹ 6Q ஖‫͚͵Ͳͫ͜׷‬ɼ*DΏ 6QͳՃ਼Ώ΢Ψϱൔ‫ݫ͏ۛ͗ܚ‬ોͲ͹஖‫׷‬΍ߨ͑͞ͳͲ෱߁͏ૌ੔Ν௒΄ͪɽ͠ΔͶɼक੔෾෾ੵΏωϣʖϧϩϋρφϭʖέͶΓΖմੵΝཤ༽͢ɼ,*=2 ‫ܧ‬Ͷ͕͜Ζ༙ް࣯ྖ PH  ͳਫ਼੔Φϱνϩϒʖ ϸ+DWRP ͹ࢩഓҾࢢΝ௒΄ͪɽ Ήͥɼ)LJ D ͶࣖͤΓ͑Ͷɼώϱχάϡρϕ (J ͳ PH  ͹ؔͶඉ৙Ͷྒྷ͏ୱ௒ત‫ଁܙ‬Յ͹૮‫͗ؖ‬೟ΌΔΗͪɽͯΉΕɼ(J ͗ঘ͠͏ΆʹҢಊౕ͗߶͚͵Ζ͞ͳ͗Κ͖ͮͪɽକ͏ͱɼक੔෾෾ੵͶΓΕಝ௅ྖபड़Νߨͮͪͳ͞Θɼฑ‫ۋ‬΢Ψϱൔ‫࠹͗ܚ‬΍॑གྷ͵ࢨඬͲ͍Ζ͞ͳ͗Κ͖ͮͪɽͨ͞Ͳɼฑ‫ۋ‬΢Ψϱൔ‫ܚ‬Ͷଲ͢ͱϸ+DWRP ͹‫ܐؖ‬Ν௒΄ͪͳ͞Θɼ9 ࣊͹ܑ޴͗ಚΔΗɼ૮҈ఈ੓͗ฑ‫ۋ‬΢Ψϱൔ‫͖ܚ‬Δઈ໎Ͳ͘Ζ͞ͳ͗Κ͖ͮͪ )LJ E ɽ͠ΔͶɼฑ‫ۋ‬΢Ψϱൔ‫ ͳܚ‬PH  ͹‫ܐؖ‬Ν௒΄ͪͳ͞ΘɼҲ

D

E

F

)LJ  D  (OHFWURQ HIIHFWLYH PDVV LQ&%0 DV D IXQFWLRQ RI EDQG JDS HQHUJ\ E  IRUPDWLRQ HQWKDOS\ DQG F 
HIIHFWLYHPDVVDVDIXQFWLRQRIDYHUDJHRILRQLFUDGLXV− 28 −෨ྭ֐ͺ͍Ζ͗ɼฑ‫ۋ‬΢Ψϱൔ‫ ͳܚ‬PH  Ͷୱ௒ત‫ݰܙ‬ঙ͹૮‫͗ؖ‬೟ΌΔΗͪ )LJ F ɽཧ⪃ᩥ⊩>@.1RPXUDHWDO1DWXUH    >@<66KLDKHWDO1DW(OHFWURQ   ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁΦϋϩάʖร‫ָߑؽ׷‬෾໼ʥ− 29 −

㧗ᐦᗘ 5) ࣉࣛࢬ࣐ࢪ࢙ࢵࢺࢆ⏝࠸ࡓ㧗ᙉᗘ㔠ᒓᶞ⬡᥋ྜᢏ⾡ࡢ㛤Ⓨෆ⏣൤୍㑻㸦ྡᇛ኱Ꮫ㸧ࠊ㒔⏥ᑗࠊ➉୰ᘯ♸ࠊ⠇ཎ⿱୍㸦኱㜰኱Ꮫ㸧࠙◊✲┠ⓗࠚ ㏆ᖺࠊ⮬ື㌴ࡸ⯟✵ᶵ➼࡟ࡣࠊ㍍㔞໬ࡢ┠ⓗࡢࡓࡵ࡟ &)53 ࡞࡝ࡢ㧗ᙉᗘᶞ⬡ᮦᩱࡀ౑⏝ࡉࢀ࡚࠾ࡾࠊᶞ⬡㒊ศ࡜㔠ᒓ㒊ศࡢ␗ᮦ᥋ྜࡀᚲせ࡜࡞ࡗ࡚࠸ࡿࠋᚑ᮶᥋ྜἲ࡜ࡋ࡚ࠊ᥋
╔๣ࡸࠊ␃ࡵලࢆ⏝࠸ࡿ᪉ἲࠊࡲࡓ⇕ᅽ╔ἲࡀᥦ᱌ࡉࢀ࡚࠸ࡿࡀࠊࡉࡽ࡟㧗ᙉᗘࢆᐇ⌧࡛ࡁࡿ᪂つ᥋ྜἲࡢ㛤Ⓨࡀồࡵࡽࢀࡿࠋᮏ◊✲࡛ࡣࠊ኱Ẽᅽࣉࣛࢬ࣐ฎ⌮ࢆ⏝࠸ࡓ㧗ᙉᗘ㔠ᒓᶞ⬡᥋ྜἲ ࣉࣛࢬ࣐⇕ᅽ╔ἲ ࢆ㛤Ⓨࡋࡓࠋ≉࡟ࣉࣛࢬ࣐⇕ᅽ╔ἲ࡟ᑐࡍࡿ‵ᗘࡢຠᯝ࡟╔┠ࡋᐇ㦂ࢆ⾜ࡗࡓࠋ᭱⤊ⓗ࡟㔠ᒓᶞ⬡᥋ྜᙉᗘ 03D ࡢ㐩ᡂࢆ◊✲┠ᶆ࡜ࡋࡓࠋ

࠙ᐇ㦂⤖ᯝࠚ ᮏ᥋ྜᐇ㦂࡛ࡣ┤ᚄ  PP ࡢ࢞ࣛࢫ⟶࡟㖡ᯈ㟁ᴟࢆྠᚰ෇≧࡟஧ᯛᕳࡁ௜ࡅࠊୖഃࢆ㧗࿘Ἴ㟁ᅽ㟁※ࠊୗഃࢆ࢔࣮ࢫ࡟᥋⥆ࡋࡓࠋ࢞ࢫὶ㔞  VOP ࡢ᮲௳࡛ $U ࢞ࢫࢆ࢞ࣛࢫ⟶ෆ࡟ὶࡋࠊ㧗࿘Ἴ㟁ᅽ㟁※࠿ࡽ࿘Ἴᩘ 0+]ࠊධᑕ㟁ຊ : ཯ᑕ㟁ຊ : ࡢ᮲௳࡛㟁ᴟ࡟㟁ᅽࢆ༳ຍࡋࡓࠋᮦᩱ࡬ࡢࣉࣛࢬ࣐↷ᑕࡣࠊ㞺ᅖẼࡢ‵ᗘࢆ ࡲ࡛ࡢ㛫࡛ኚ໬ࡋࠊ
㔠ᒓ⾲㠃࡜ᶞ⬡⾲㠃࡟㡰␒࡟ᩘศ㛫↷ᑕࡋࡓࠋᚑ᮶ࡢ⇕ᅽ╔ἲ࡜ࡋ࡚ࠊ᢬ᢠຍ⇕ࣄ࣮ࢱ࣮࡛ࠊ
ᶞ⬡ࡢ㌾໬ ᗘ௨ୖࡲ࡛㔠ᒓࢆຍ⇕ࡋࠊࡑࡢᚋ἞ල࡛⣙ 03D ࡢຊ࡛㔠ᒓ࡜ᶞ⬡ࢆᅽ╔ࡋࡓࠋ᥋ྜᙉᗘࡣࠊᘬࡗᙇࡾヨ㦂ᶵࢆ⏝࠸࡚ࠊPPPLQ ࡛ࢧࣥࣉࣝࢆ୧ഃ࠿ࡽᘬࡗᙇࡾࠊ◚᩿ࡍࡿᙉᗘࢆ

ᐃࡍࡿࡇ࡜࡛ホ౯ࡋࡓࠋ᥋ྜࡢ㔠ᒓࢧࣥࣉࣝ࡜ࡋ࡚ 686 ࡜㗰ᯈ

63& ࢆ⏝࠸࡚ࠊᶞ⬡ࢧࣥࣉࣝ࡜ࡋ࡚࣏࣮ࣜ࢝࣎ࢿ࣮ࢺ 3& ࢆ⏝࠸ࡓࠋࣉࣛࢬ࣐࡜⁐ᾮ࡜ࡢ┦஫స⏝ࢆ฼⏝ࡋࡓ᥋ྜ࡟࠾࠸࡚ࠊ᥋ྜ᫬ࡢ‵ᗘ Ỉ⵨Ẽ ࡢᙳ㡪ࡣ㔜せ࡞ᅉᏊ࡜࡞ࡿࠋࡑࡇ࡛ࠊࣉࣛࢬ࣐⇕ᅽ╔᫬ࡢ㞺ᅖẼࡢ‵ᗘࢆไᚚࡋ࡚ D ࢫࢸࣥࣞࢫ࣏ࣜ
࣮࢝࣎ࢿ࣮ࢺ࡜ E 㗰ᯈ࣏࣮ࣜ࢝࣎ࢿ࣮ࢺ࡟㛵ࡍࡿ᥋ྜᐇ㦂ࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝࠊᅗ  ࡟♧ࡍࡼ࠺࡟୧᥋ྜࢧࣥࣉࣝ࡟࠾࠸࡚‵ᗘࡢୖ᪼࡟࡜ࡶ࡞࠸᥋ྜᙉᗘࡣ኱ᖜ࡟ୖ᪼ࡋࠊ‵ᗘ࡛᭱኱ᙉᗘ࡜࡞ࡗࡓࠋྠ᫬࡟ࡇࡢ᫬ࡢ㧗࿘Ἴࣉࣛࢬ࣐ࢪ࢙ࢵࢺࡢⓎගࢫ࣌ࢡࢺࣝࢆศග
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ࡢ⤖ᯝࠊᅗ  ࡟♧ࡍࡼ࠺࡟‵ᗘࡢୖ᪼࡟࡜ࡶ࡞࠸ 2+ ࣛࢪ࢝ࣝ࡟㉳ᅉࡍࡿ  QP ㏆㎶ࡢ
Ⓨගࣆ࣮ࢡᙉᗘẚࡢୖ᪼ࡀほࡉࢀࠊ᥋ྜᙉᗘࡢቑ኱ࡣᶞ⬡⾲㠃ࡢᨵ㉁࡟᭷ຠ࡞άᛶ㓟⣲✀ࡢቑຍ࡟㉳ᅉࡍࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋࡲࡓࠊᐇ㝿࡟ࣉࣛࢬ࣐↷ᑕ๓࡜↷ᑕᚋ࡛ᶞ⬡⾲㠃ࡢ໬Ꮫ⤖ྜࡢኚ໬ࢆ )7,5 ศගἲ࡛ ᐃࡋࡓ࡜ࡇࢁࠊᅗ  ࡟♧ࡍࡼ࠺࡟ࣉࣛࢬ࣐↷ᑕᚋࡢ⾲− 30 −

㠃࠿ࡽ㓟⣲࡟㉳ᅉࡍࡿࣆ࣮ࢡࡀ᪂ࡓ࡟ほࡉࢀࡓࠋࡇࢀࡼࡾ㧗ᐦᗘ࡛࠶ࡿ㧗࿘Ἴࣉࣛࢬ࣐

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㸦ඹྠ◊✲ศ㔝㸸࢚ࢿࣝࢠ࣮ኚ᥮ᶵᵓᏛศ㔝㸧− 31 −

኱㟁ຊ䝟䝹䝇䝇䝟䝑䝍䜢⏝䛔䛯㓟໬≀༙ᑟయᮦᩱ䛾ᡂ⭷ྡ㻌 ᇛ㻌 ኱㻌 Ꮫኴ⏣㻌 ㈗அ䚸㛗ᶫ㻌 ඞ඾䚸㰻⸨㻌 ♸ኴ䠍䠊㻌 ┠ⓗ䜰䝰䝹䝣䜯䝇㓟໬≀༙ᑟయ䛿䚸䜻䝱䝸䜰⛣ືᗘ䛜㧗䛟䚸ప䛷ᡂ⭷䛜ྍ⬟䛺䛯䜑䚸ⷧ⭷䝖䝷䞁䝆䝇䝍 7)7 䛾䝏䝱䝛䝹ᒙ䛻౑⏝䛥䜜䛶䛔䜛䚹䜰䝰䝹䝣䜯䝇 ,*=2 䛿䚸FP9V ⛬ᗘ䛾㟁Ꮚ⛣ືᗘ䜢ᣢ䛱䚸኱㠃✚䛷䜒ᆒ୍䛺ཌ䛥䛻ᡂ⭷䛜䛷䛝䜛䛾䛷䚸䝇䝬䞊䝖䝣䜷䞁䜔䝔䝺䝡䛺䛹䛾䝕䜱䝇䝥䝺䜲䛻ᐇ⏝໬䛥䜜䛶䛝䛯䚹㏆ᖺ䚸F ㍈㓄ྥ䜢ᣢ䛴⤖ᬗᛶ&$$& &$[LV$OLJQHG &U\VWDO ,*=2 䛜䚸⭷ཌᆒ୍ᛶ䜢⥔ᣢ䛧䛺䛜䜙䚸ඃ䜜䛯ືసᏳᐃᛶ䛸䚸ᴟ䜑䛶ప䛔䝸䞊䜽㟁ὶ䜢♧䛩䛣䛸䛜ሗ࿌䛥䜜䛶䛚䜚䚸పᾘ㈝㟁ຊ䝕䜱䝇䝥䝺䜲䚸୙᥹Ⓨᛶ 5$0 䛺䛹䛾ᛂ⏝⠊ᅖ䛾ᣑ኱䛜᳨ウ䛥䜜䛶䛔䜛䚹䛩䛺䜟䛱䚸㧗㟁Ꮚ⛣ືᗘ䜢᭷䛩䜛⤖ᬗ㓟໬≀༙ᑟయᮦᩱ䛾ᐇ⌧䛜ồ䜑䜙䜜䛶䛔䜛䚹኱㟁ຊ䝟䝹䝇䝬䜾䝛䝖䝻䞁䝇䝟䝑䝍 +L3,06 䛿䚸ᩘ༑䝬䜲䜽䝻⛊䛾䝟䝹䝇㧗㟁ᅽ䜢ᅛయᮦᩱ䛻༳ຍ䛩䜛䝇䝟䝑䝍䝸䞁䜾ἲ䛷䛒䜛䚹䝥䝷䝈䝬ᐦᗘ䛜㧗䛟㧗䜶䝛䝹䜼䞊䛾䜲䜸䞁䜢ከ㔞䛻⏕ᡂ䛷䛝䜛䛸䛔䛖≉ᚩ䜢䜒䛴䛣䛸䛛䜙䚸ⷧ⭷䜈䛾䜲䜸䞁䝪䞁䝞䞊䝗ຠᯝ䜢✚ᴟⓗ䛻ά⏝䛩䜛䛣䛸䛻䜘䜚䚸⤖ᬗ໬⋡䛾ྥୖ䛻ᐤ୚䛩䜛⾲㠃䝬䜲䜾䝺䞊䝅䝵䞁䛾ಁ㐍䛜ᮇᚅ䛷䛝䜛䚹䛩䛺䜟䛱䚸⤖ᬗᛶ䛾㧗䛔 ,*=2 䜢ప䛷ᡂ⭷䛩䜛䛣䛸䜢ྍ⬟䛻䛧䚸ᮏ䝥䝻䝉䝇䜢䝣䝺䜻䝅䝤䝹䝕䝞䜲䝇䜈㐺⏝䛩䜛䛣䛸䛜ᮇᚅ䛷䛝䜛䚹ᮏ◊✲䛷䛿䚸+L3,06 䜢⏝䛔䛯⤖ᬗᛶ ,*=2 ⷧ⭷䛾ᡂ⭷䜢┠ⓗ䛻䚸ᨺ㟁≉ᛶ䛸⤖ᬗᵓ㐀䜢ホ౯䛧䛯䚹䠎䠊㻌 ◊✲᪉ἲ䝟䝹䝇ᖜ V䚸࿘Ἴᩘ +] 䛾኱㟁ຊ䝟䝹䝇䜢䚸┤ᚄ  䜲䞁䝏䛾 ,*=2 䝍䞊䝀䝑䝖䛻༳ຍ䛧䛯䚹䜰䝹䝂䞁䛸㓟⣲䛾ΰྜ䜺䝇䜢䝏䝱䞁䝞ෆ䛻ᑟධ䛧䚸⥲䜺䝇ὶ㔞 VFFP䚸㓟⣲䜺䝇ὶ㔞ẚ 䚸ᡂ⭷ᅽຊ䜢 3D䚸ᇶᯈ䛿↓ຍ⇕䞉↓෭༷䛷ᡂ⭷䜢⾜䛳䛯䚹䝍䞊䝀䝑䝖䜈䛾༳ຍ㟁ᅽ䜢  䛛䜙 9 䜎䛷ኚ໬䛥䛫䛯䚹䠏䠊㻌 ◊✲⤖ᯝᅗ  䛻䝍䞊䝀䝑䝖㟁ᅽἼᙧ䚸ᅗ  䛻䝍䞊䝀䝑䝖㟁ὶἼᙧ䚸ᅗ䠏䛻㟁ຊἼᙧ䜢♧䛩䚹㟁ຊᐦᗘ䛿䚸ྛ᫬㛫䛻䛚䛡䜛㟁ᅽ䛸㟁ὶᐦᗘ䛛䜙⟬ฟ䛥䜜䛯䚹䜎䛯䝢䞊䜽㟁ຊᐦᗘ䛿䚸᭱኱㟁ὶ್䜢♧䛩᫬㛫䛻䛚䛡䜛㟁ὶ䛸㟁ᅽ䛛䜙ィ⟬䛧䛯䚹䝍䞊䝀䝑䝖༳ຍ㟁ᅽ䜢 9 䛛䜙 9 䜎䛷ቑຍ䛥䛫䜛䛸䚸㟁ὶᐦᗘ䛿 $FP 䛛䜙 $FP 䜎䛷ቑຍ䛧䚸䝢䞊䜽㟁ຊᐦᗘ᥮⟬䛷䛿 N:FP 䛛䜙 N:FP 䛻ቑຍ䛧䛯䚹୍⯡ⓗ䛻 +L3,06 㡿ᇦ䛿 N:FP ௨ୖ䛸䛥䜜䛶䛚䜚䚸ᮏᐇ㦂䛷䛿䚸䝍䞊䝀䝑䝖༳ຍ㟁ᅽ䛜 9 䛸 9 䛾䛸䛝䚸+L3,06 䛾䝥䝷䝈䝬≧ែ䜢ά⏝䛧䛯ᡂ⭷᮲௳䛷䛒䛳䛯䛸ゝ䛘
䜛䚹Ⓨගศගἲ䜢⏝䛔䛶䝥䝷䝈䝬≧ែ䜢ゎᯒ䛧䛯䛸䛣䜝䚸䜰䝹䝂䞁୰ᛶཎᏊ䛾Ⓨගᙉᗘ䛻ᑐ䛩䜛䜰䝹䝂䞁ṇ䜲䜸䞁䛾Ⓨගᙉᗘẚ䛜䝍䞊䝀䝑䝖༳ຍ㟁ᅽ䛾ቑຍ䚸䛩䛺䜟䛱䝢䞊䜽㟁ຊᐦᗘ䛜ቑຍ䛧䚸ⷧ⭷䛻ධᑕ䛩䜛䜲䜸䞁䛾䝣䝷䝑䜽䝇䛜ቑຍ䛧䛯䛣䛸䛜♧၀䛥䜜䜛䚹ᅗ  䛻 ;5' 䝇䝨䜽䝖䝹䜢♧䛩䚹ș Û䛻 ,*=2  䛾䝢䞊䜽䛜䚸9 䛸 9 䛾ᡂ⭷᮲௳䛷ほ䛥䜜䛯䚹䛩䛺䜟

䛱䚸㧗䛔䜲䜸䞁䝣䝷䝑䜽䝇䛜ᚓ䜙䜜䜛 +L3,06 㡿ᇦ䛾᮲௳䛻䛚䛔䛶䚸䜲䜸䞁⾪ᧁຠᯝ䛻䜘䜚⾲㠃䝬䜲䜾䝺䞊䝅䝵䞁䛜ಁ㐍䛧䚸ᇶᯈ䛾↓ຍ⇕᮲௳ୗ䛷䜒⤖ᬗ໬䛜ಁ㐍䛧䛯䛣䛸䛜᫂䜙䛛䛻䛺䛳䛯䚹䜎䛯䚸ග㏱㐣⋡ᐃ䜢⾜䛳䛯䛸䛣䜝䚸඲䛶䛾ᡂ⭷᮲௳䛻䛚䛔䛶䚸ྍどග㡿ᇦ QP 䛷䛾ග㏱㐣⋡䛜 ௨ୖ䛷䛒䛳䛯䚹 − 32 −

䠐䠊㻌 ⤖ㄽ
ᮏ◊✲䛷䛿䚸+L3,06 䛜䜒䛯䜙䛩ᇶᯈ䜈䛾䜲䜸䞁⾪✺ຠᯝ䜢ᮇᚅ䛧䚸ᇶᯈ䛾↓ຍ⇕䞉↓෭༷᮲௳ୗ䛷⤖ᬗᛶ ,*=2䛾ᡂ⭷䜢ヨ䜏䛯䚹䝢䞊䜽㟁ຊᐦᗘ  N:FP ௨ୖ䛾 +L3,06 ᮲௳ୗ䛷䚸⤖ᬗᛶ ,*=2 ⷧ⭷䛾ᙧᡂ䛜ㄆ䜑䜙䜜䛯䚹ᚑ᮶䛷䛿༙ᑟయ䛻䝎䝯䞊䝆䜢୚䛘䜛ᅉᏊ䛸䛥䜜䜛䜲䜸䞁䜢✚ᴟⓗ䛻ά⏝䛩䜛䛣䛸䛻䜘䜚䚸㧗䛔⤖ᬗᛶ䜢䜒䛴㓟໬≀༙ᑟయᮦᩱ䜢ప

ᡂ⭷䛩䜛䛣䛸䛜䛷䛝䜛ྍ⬟ᛶ䜢♧䛧䛯䚹

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ᅗ 㻌 㟁ຊἼᙧ䠊 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 ᅗ 㻌 ;5' 䝇䝨䜽䝖䝹䠊䠄ඹྠ◊✲ศ㔝䠖䜶䝛䝹䜼䞊ኚ᥮ᶵᵓᏛศ㔝䠅− 33 −

ΰྜ⢊య䝍䞊䝀䝑䝖䜢⏝䛔䛯㏱᫂ᑟ㟁⭷䛾ヨసᡤ㻌 ᒓ㻌 㻌 బୡಖᕤᴗ㧗➼ᑓ㛛ᏛᰯẶ㻌 ྡ㻌 㻌 ᕝᓮ㻌 ோᬕ䚸ᰗ⏕㻌 ⩏ே̏ɿ ໪ద
ηϏρνϨϱή๑ͺ҈ՃͲ҈સ͵੔ຜ๑ͳ͢ͱஎΔΗͱ͕ΕɼύʖχαʖτΡϱήΝߨ͑৖߻͵ʹͶཤ༽͠Ηͱ͏Ζɽ͞͹๏๑Ͳമຜࡠ੣Νߨ͑৖߻ɼҲൢదͶືౕ͗ർֳద߶͏ώϩέ ‫ݽ‬ର νʖΰρφ
͗༽͏ΔΗΖ͗ɼଡ͚͹੔෾Νࠠ߻ͦ͠ͱ‫ؽ‬೵Ν൅‫ͦ͠ݳ‬Ζ৖߻Ͷͺɼଡνʖΰρφ͹੔ຜ๑Ν༽͏Ζ͖ɼνʖΰρφΝพ͹๏๑Ͳࡠ੔ͤΖචགྷ͍͗Εαηφ߶Ͷ͵Ζɽ΍͢ɼฆରΝͨ͹ΉΉνʖΰρφͶ
༽͏Ζ͞ͳ͗Ͳ͘Ηͻɼ߶‫ؽ‬೵മຜ͹ࡠ੣͗༲ҝͶࡠ੣Ͳ͘ΖՆ೵੓͍͗ΖɽΉͪɼฆର͹ૌΊ߻ΚͦͶΓͮͱɼ৿͢͏‫ؽ‬೵Ν࣍ͯമຜ͹ࡠ੣΍‫غ‬ଶͲ͘Ζɽຌ‫Ͳڂݜ‬ͺɼࡤ೧ͶӀ͘କ͘ฆରνʖΰρφΝ༽͏ͪϕϧθϜϕϫιηգఖͳ߶඾࣯മຜΝࡠ੣ͤΖͪΌ͹࠹నড়݇Ν௒΄Ζͳͳ΍Ͷɼຜ஦͹ࠠ߻ർͳࡠ੣ͪ͢മຜ͹ૌ੔Ͷ‫͢ͱؖ͢‬Δ΄ͪɽࠕյͺɼಃ໎಍ు੓Ͷ΍ཤ༽͠Ηͱ͏Ζ $=2 മຜ͹ࡠ੣Νߨ
ͮͪɽ$=2 മຜͺɼ$O⒬2⒭ͳ =Q2 ͹ࠠ߻ฆ຦νʖΰρφΝ༽͏ͱɼηϏρνϨϱή੔ຜ๑ͶΓΕࡠ੣ͪ͢ɽಝͶ੔ຜ஦ͶνʖΰρφΝఈ‫غ‬దͶި‫ͪ͢׷‬৖߻ͳɼ͢͵͖ͮͪ৖߻͹੔ຜ݃Վ͹ർֳͶ‫ͱؖ͢‬ๅࠄΝߨ͑ɽ̐ɿ ‫ڂݜ‬๏๑ࣰ‫ૹݩ‬஖Νਦ̏ͶࣖͤɽฆରΝࠠ߻ͦͪ͠νʖΰρφΝϙϩξͶઅ஖͢ɼ௪৙͹ηϏρνϨϱή
๑ͲമຜΝࡠ੣ͪ͢ɽ‫خ‬ఊਇ‫ۯ‬ͺνʖϚ෾ࢢϛϱϕͳηέϫʖϩϛϱϕΝญ༽͢  ʹ  3D ͳͪ͢ɽͨ͹য়ସͲΠϩβϱΪηΝ VFFP ಍೘͢ɼ 
ʛ3D Ͳ੔ຜͪ͢ɽ0+] ͹ 5) ుྙΝ ʛ : ౦೘͢ɼϕϧθϜΝ൅ਫ਼ͦͪ͠ɽ‫خ‬൚ͺΠιφϱͳ९ਰͲજ৞ͪ͢ 6L ͕Γ;Ϊϧη‫خ‬൚Ν༽͏ͪɽ‫خ‬൚Իౕͺ࣪Իɼ੔ຜ࣎ؔͺ f ෾ͳͪ͢ɽϕϧθϜ஦͹ుࢢԻౕɼుࢢືౕ͹‫ܯ‬଎ͶͺϧϱήϝϣΠϕϫʖϔ๑Ν༽͏ͪɽຜ޲ͺৰਓஊࠫຜ޲‫ ܯ‬.RVDND/DERUDWRU\6XUIFRUGHU(7$ ɼන ໚ ‫ ܙ‬য় ͺ ‫ ݨ ྙ ؔ ࢢ ݬ‬ඏ ‫ ں‬$)0 -(2/-630 ͕Γ;ૺࠬ‫ܗ‬ుࢢ‫ݨ‬ඏ‫ں‬ʤ6(0ʁ(OLRQL[)LJ6FKHPDWLFRIWKHH[SHULPHQWDOVHWXS

(5$ʥɼ݃ধ੓ͺ ; તյ઄ૹ஖ ;5'5LJDNX
5,179 ɼૌ੔ͺ ; તޭుࢢ෾ޭૹ஖ʤ;36ʁ-(2/-36ʥͶΓΕմੵͪ͢ɽ ̑ɿ ‫݃ڂݜ‬Վ=Q2$O2 ZW͹ࠠ߻ฆ຦νʖΰρφΝ༽͏ͱɼ࣪ԻͲ $=2 മຜΝࡠ੣ͪ͢ɽৢ஥࣎ؔͺรԿͦ͠ɼ‫خ‬൚ͺՅ೦͢͵͖ͮͪʤͤ͵Κͬ࣪ԻͲ࢘༽ͪ͢ʥɽࠕյͺ  ฆ຦νʖΰρφΝ  ෾͟ͳͶ৿͢͏΍͹Ͷި‫ͪ͢׷‬৖߻ʤҐԾɼʰި‫׷‬ฆରνʖΰρφʱʥͳɼ  νʖΰρφΝި‫͏͵͢׷‬৖߻ʤҐԾɼʰඉި‫׷‬ฆରνʖΰρφʱʥ͹  ͯ͹ড়݇Ͳ੔ຜͪ͢ɽਦ  ͺɼި‫׷‬ฆରνʖΰρφͳඉި‫׷‬ฆରνʖ

− 34 −

ΰρφΝ༽͏ͱࡠ੣ͪ͢ $=2 മຜ͹੔ຜଐౕΝࣖ͢ͱ
͏Ζɽި‫׷‬ฆରνʖΰρφΝ༽͏ͪ৖߻͹੔ຜଐౕͺɼ ෾‫ޛ‬Ͷ ΉͲঅʓͶఁԾͪ͢ɽҲ๏ɼඉި‫׷‬ฆର͹νʖΰρφΝ༽͏ͪ৖߻͹੔ຜଐౕͺ  ෾‫ޛ‬Ͷ ΉͲఁԾ͢ɼ๠࿪Ͷୣͪ͢ɽਦ  ͳਦ  ͺɼͨΗͩΗި‫׷‬ฆରνʖΰρφͳඉި‫׷‬ฆର͹νʖΰρφΝ༽͏ͱࡠ੣ͪ͢മຜ͹݃ধ੓Νࣖ
͢ͱ͏Ζɽ$=2 മຜͲͺ =Q2 ͹յ઄ϒʖέ͗؏ࡱ͠Ηͪɽৢ஥࣎ؔ  ෾͹ $=2 മຜͲͺɼ=Q2 ͳࢧΚΗΖ‫͏ک‬յ઄ϒʖέ͗؏ࡱ͠Ηͪɽࡠ੔઴͹νʖΰρφන໚͹ ;5' ηϘέφϩͳർֳͤΖͳɼ=Q2 ͹ϒʖέͺఁֱ)LJ   'HSRVLWLRQ UDWH RI$=2 WKLQ ILOPV SUHSDUHGXVLQJERWKWKHQHZSRZGHUDQGXVHGSRZGHU

ౕଈͶεϓφ͢ͱ͏ͪɽ͞͹‫ݳ‬েͺɼৢ஥ຜ͗ѻक़ԢྙΝण͜ͱ͏Ζ͞ͳΝࣖ͢ͱ͏Ζɽඉި‫׷‬ฆର͹νʖΰρφͲͺɼৢ஥  ෾‫ޛ‬Ͷϒʖέ͗ఁֱଈͶεϓφ͢ɼϒʖέ‫ౕک‬͹ఁԾͳϒʖέ෱͹߁͗Ε΍؏ࡱ͠Ηͪɽ͞͹͞ͳ͖Δɼνʖΰρφࣙର͹݃ধ੓͹ఁԾͶՅ͓ɼΠϩϝωΤϞ
Ώ࢐ો͹ࠠ೘ͶΓΕ֪ࢢఈ਼͗รԿ͖ͪ͢ɼ࢘༽ฆ຦Ͷѻक़ԢྙͶΓΖ݃ধ࿬Ί͗ਫ਼ͣͪͳߡ͓ΔΗΖɽި‫׷‬ฆରνʖΰρφ͹৖߻ͺɼຘյ৿͢͏ฆ຦͹νʖΰρφΝ࢘༽͢ͱ͏ΖͪΌɼͤ΄ͱ͹ৢ஥࣎ؔͲ  ͯҐ৏͹ϒʖέ͗؏ࡱ͠Ηͪɽνʖΰρφන໚͗ϨϓϪρεϣ͠Ηͪ݃Վɼର੷
஦͹ຜ͹݃ধ੓͗߶͚ฯͪΗͪ΍͹ͳߡ͓ΔΗΖɽ)LJ   &U\VWDOOLQLW\ RI WKH WKLQ ILOPV IDEULFDWHG

̒ɿ ݃࿨
$O⒬2⒭ͳ =Q2 ͹ࠠ߻ฆ຦νʖΰρφΝ༽͏ͱɼ$=2 മຜΝηϏρνϨϱή੔ຜ๑ͶΓΕࡠ੣ͪ͢ɽಝͶ੔ຜ஦ͶνZLWKWKHXVHGSRZGHUʖΰρφΝఈ‫غ‬దͶި‫ͪ͢׷‬৖߻ͳɼ͢͵͖ͮͪ৖߻͹੔ຜ݃ՎΝർֳͪ͢ɽͨ͹݃Վɼνʖΰρφ͗৙Ͷ৿͢͏ฆ
ରͲ͍Ζ๏͗ྒྷ޹͵ಝ੓Νࣖͤ͞ͳ͗൓ͮͪɽ
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)LJ   &U\VWDOOLQLW\ RI WKH WKLQ ILOPV IDEULFDWHG
ZLWKWKHQHZSRZGHUʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁΦϋϩάʖร‫ָߑؽ׷‬෾໼ʥ− 35 −

&[+\$U 䝥䝷䝈䝬 &9' 䜢⏝䛔䛯Ỉ⣲໬䜰䝰䝹䝣䜯䝇䜹䞊䝪䞁⭷䛾ሁ✚≉ᛶ䛻ᑐ䛩䜛䜺䝇ᅽຊ䛾ຠᯝ஑㻌 ᕞ㻌 ኱㻌 Ꮫⓑ㇂ṇ἞䚸ྂ㛩୍᠇䚸ᯈᇉዉ✑䚸㙊⁪᫴♩䠍䠊㻌 䛿䛨䜑䛻ேᕤ▱⬟䜔 ,R7 䛾Ⓨᒎ䜢⫼ᬒ䛻䚸༙ᑟయ䝕䝞䜲䝇䝥䝻䝉䝇䛾㧗ᗘ໬䛜ồ䜑䜙䜜䛶䛔䜛䚹Ỉ⣲໬䜰䝰䝹䝣䜯䝇䜹䞊䝪䞁䠄D&+䠅⭷䛿䜶䝑䝏䞁䜾䝥䝻䝉䝇䛾䛯䜑䛾䝝䞊䝗䝬䝇䜽䛸䛧䛶⏝䛔䜙䜜䚸㧗䜰䝇䝨䜽䝖ẚ䝥䝻䝉䝇䛾䛯䜑䚸㧗ᐦᗘ䛛䛴ཌ䛔⭷䜢ሁ✚䛩䜛ᚲせ䛜䛒䜛>@䚹༙ᑟయ䝥䝻䝉䝇䛻䛚䛡䜛䝝䞊䝗䝬䝇䜽䛺䛹ಖㆤ⭷䛸䛧䛶㔜せ䛺ᙺ๭䜢ᢸ䛖Ỉ⣲໬䜰䝰䝹䝣䜯䝇䜹䞊䝪䞁 D&+ ⭷䛾ᛂຊపῶ䛿㔜せㄢ㢟䛷䛒䜛䚹䛧䛛䛧䛺䛜䜙䚸ಖㆤ⭷䛾ᛶ⬟䛻㛵ಀ䛩䜛⭷ᐦᗘ䛸⭷ཌ䛻䛿䝖䝺䞊䝗䜸䝣䛜Ꮡᅾ䛧䚸㧗ᐦᗘ D&+ 䜢ཌ⭷〇⭷䛧䛯ሙྜ䚸ෆ㒊ᛂຊ䛜ቑຍ䛧䛶⭷๤䛜䜜䛺䛹䛜Ⓨ⏕䛩䜛䛯䜑㧗⭷ᐦᗘ䛾䜎䜎⭷ᛂຊ䜢పῶ䛩䜛䛣䛸䛜ồ䜑䜙䜜䛶䛔䜛䚹ᚑ᮶ἲ䛷䛿䚸ሁ✚ᚋ䛾䝫䝇䝖䜰䝙䞊䝸䞁䜾䜔䚸␗✀ඖ⣲䛾ΰධ䛻䜘䜛ᛂຊపῶ䛜᳨ウ䛥䜜䛶䛔䜛䛜䚸䝫䝇䝖䜰䝙䞊䝸䞁䜾䛷䛿䝃䞁䝥䝹䜢㧗䛻䛥䜙䛩ᚲせ䛜䛒䜛䛣䛸䚸␗✀ඖ⣲䛾ΰධ䛿୙⣧≀※䛸䛺䜛䛯䜑䚸༙ᑟయ䝕䝞䜲䝇䝥䝻䝉䝇䛺䛹䛷䛿୙ྥ䛝䛺
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䠎䠊㻌 ◊✲᪉ἲᐇ㦂䛷䛿䚸ᖹ⾜ᖹᯈ䝥䝷䝈䝬 &9' ⿦⨨䜢⏝䛔䛯䚹┤ᚄ PP 䛾䝇䝔䞁䝺䝇〇䝯䝑䝅䝳䜢⿦⨨䛾୰ኸ䛻䚸┤ᚄ
 PP 䛾䝇䝔䞁䝺䝇〇㟁ᴟ䜢  PP ୗ䛻㓄⨨䛧䚸ୗ㒊㟁ᴟ䛻  PP 㽢  PP 䛾 Q6L ᇶᯈ䠄䠅䜢㓄⨨䛧䛯䚹⿦⨨ୖ㒊䛛䜙ᮦᩱศᏊ䛸 $U 䜢䛭䜜䛮䜜 
VFFP  VFFP 䛷ᑟධ䛧䛯䚹ᅽຊ䛿 䚸䚸
7RUU 䛸䛧䛯䚹ୗ㒊㟁ᴟ䛻࿘Ἴᩘ 0+] 䛾㧗࿘Ἴ㟁ᅽ䠄9SS䠅䜢ୗ㒊㟁ᴟ䛻༳ຍ䛧䛶䝥䝷䝈䝬䜢⏕ᡂ䛧䛯䚹䠏䠊㻌 ◊✲⤖ᯝ䛸⪃ᐹ⮬ᕫ䝞䜲䜰䝇㟁ᅽ_9GF_䛸〇⭷㏿ᗘ䛾ᅽຊ౫Ꮡᛶ䜢 )LJ 䛻♧䛩䚹⮬ᕫ䝞䜲䜰䝇㟁ᅽ䛿䛹䛾ᮦᩱ䛻䛚䛔䛶䜒ᅽຊ䛾ቑຍ䛻క䛔ῶᑡഴྥ䛷䛒䛳䛯䚹䛣䜜䛿䝥䝷䝈䝬䛾䝞䝹䜽㒊ศ䛾⦰ᑠ䠄ᨺ㟁෗┿䠅䛻䜘䜛ᨺ㟁䛾ᑐ⛠ᛶ䛾ྥୖ䛾䛯䜑䛸⪃䛘䜙䜜䜛䚹䜎䛯〇⭷㏿ᗘ䛿䛹䛾ᮦᩱ䛻䛚䛔䛶䜒ᅽຊ䛾ቑຍ䛻క䛔ቑຍഴྥ䛷䛒䛳䛯䚹≉䛻䜽䝯䞁䛻䛚䛔䛶䛿  7RUU 䛾䛸䛝− 36 −

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/L ࢖࢜ࣥ㟁ụᛂ⏝ࢆ┠ᣦࡋࡓࢼࣀᮦᩱ᥈⣴◊✲ෆ⏣൤୍㑻㸦ྡᇛ኱Ꮫ㸧ࠊᑠ⃝㝯ᘯ㸦኱㜰኱Ꮫ㸧࠙◊✲⫼ᬒࠚ
9 ௨ୖࡢ㧗࠸㉳㟁ຊࢆ᭷ࡍࡿࣜࢳ࣒࢘࢖࢜ࣥ㟁ụࡣࠊࣔࣂ࢖ࣝᶵჾ࡬ࡢ฼⏝࡟࡜࡝ࡲࡽࡎ㟁Ẽ⮬ື㌴࡬ࡢᦚ㍕ࡀໃຊⓗ࡟ᒎ㛤ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽ⌧⾜ࡢ㟁Ẽ⮬ື㌴ࡢ  ಸ௨ୖࡢ⯟⥆㊥㞳ࢆྍ⬟࡜ࡍࡿࡓࡵ࡟ࡣࠊ㟁ụࡢ㧗ᐜ㔞໬ࡀᚲせ୙ྍḞ࡛࠶ࡿࠋࡇࡢࡼ࠺࡞◊✲⫼ᬒࡢࡶ࡜ࠊᮏ◊✲࡛ࡣࣜࢳ࣒࢘ࢆ኱㔞࡟྾⮚࡛ࡁࡿ᪂つ㈇ᴟࢼࣀ༙ᑟయᮦᩱࢆ㛤Ⓨࡍࡿࡇ࡜࡟ࡼࡾࠊࣜࢳ࣒࢘࢖࢜ࣥ㟁ụࡢ㧗ᐜ㔞໬ࢆᐇ⌧ࡍࡿࡇ࡜ࢆ┠ᶆ࡜ࡍࡿࠋ⌧ᅾࣜࢳ࣒࢘࢖࢜ࣥ㟁ụ࡟฼⏝ࡉࢀ࡚࠸ࡿ࣮࢝࣎ࣥ⣔ᮦᩱ㸦⌮ㄽᐜ㔞  P$KJ㸧࡟ẚ࡭  ಸ௨ୖࡢ㧗࠸⌮ㄽᐜ㔞ࢆ᭷ࡍࡿ 6L ᮦᩱ㸦⌮ㄽᐜ㔞P$KJ㸧࡟╔┠ࡋࠊ୧⪅ࢆΰྜࡋࡓࢼࣀ
6L& 」ྜ⭷ࡢ㛤Ⓨࢆ⾜ࡗࡓࠋ6L ᮦᩱࡣࠊ㧗࠸㟁Ẽᐜ㔞ࡀᮇᚅ࡛ࡁࡿ୍᪉ࠊ/L ྾⮚᫬ ඘㟁᫬ ࡢయ✚⭾ᙇ⋡ࡀ ࡜࣮࢝࣎ࣥ࡟ẚ࡭ᴟࡵ࡚኱ࡁࡃࠊᮦᩱ⭾ᙇ᫬ࡢட⿣ࡸ㞟㟁య࠿ࡽࡢ๤㞳࡞࡝ᶵᲔⓗຎ໬ࡀᣦ᦬ࡉࢀ࡚࠸ࡿࠋࡇࡢㄢ㢟ࢆゎỴࡍࡿࡓࡵᮏ◊✲࡛ࡣ㈇ᴟᮦ࡟࣮࢝࣎ࣥ⢏Ꮚ࡜ 6L ⢏Ꮚࡢ  ࡘࡢ⢏Ꮚࢆΰྜࡋ࡚⏝࠸ࠊࡑࢀࡒࢀࡢ㉁㔞ẚ࡜㟁ụᛶ⬟ࡢ㛵ಀࢆㄪᰝࡋࡓࠋࡉࡽ࡟㈇ᴟ⾲㠃ࢆ /L321⭷࡛࢝ࣂ࣮ࡋࡓ㈇ᴟࢆ᪂ࡓ࡟㛤Ⓨࡋࡓࠋ࠙ᐇ㦂⤖ᯝࠚ㈇ᴟ⭷ࡢస〇ᡭ㡰ࢆ௨ୗ࡟♧ࡍࠋ/L ࡜཯ᛂࡍࡿ 6L ࡲࡓࡣ & ά≀㉁ ZW ࠊ࢔ࢭࢳࣞࣥࣈࣛࢵࢡᑟ㟁ᮦ ZW ࠊ࣏ࣜ࢖࣑ࢻࣂ࢖ࣥࢲ࣮ ZW ࡜⁐๣ࢆΰྜࡍࡿࡇ࡜࡛ࢫ࣮ࣛࣜࢆస〇ࡋࠊ㞟㟁య࡜࡞ࡿ㖡⟩ࡢୖ࡟ࢻࢡࢱ࣮ࣈ࣮ࣞࢻἲ
࡛ሬᕸࡋࡓࠋࡑࡢᚋࠊ༟ୖ⇕࣮ࣟࣝࣉࣞࢫᶵ࡛ᅽ⦰ࡋ⭷ᐦᗘࢆ㧗ࡵࡓᚋࠊ┿✵ୗࡢ Υ࡛↝ᡂࡋࡓࠋ᭱ᚋ࡟෇ᙧࡢI ࡟ᡴࡕᢤࡁࠊ㟁ụࡢ㈇ᴟ࡜ࡋࡓࠋά≀㉁࡜ࡋ࡚ࡣࠊ⌫ᬗ࣮࢝࣎ࣥ & ⢏ᚄP ࡜ 6L ࢼࣀ⢏Ꮚ ⢏ᚄaQP ࢆ⏝࠸ࡓࠋΰྜ㈇ᴟ⭷ࡣ 6L& ࡢ㉁㔞ẚࢆ ࠊ ࡢ๭ྜ࡜ࡋࡓ>ᐇ㦂 @ࠋ✚ᒙ㈇ᴟ⭷ࡣ & ᒙࡢ⭷ཌࢆ P ࡜ࡋࠊࡑࡢୖ࡟⭷ཌ P ࡢΰྜᒙࢆస〇ࡋࡓ>ᐇ㦂 @ࠋ㈇ᴟࡢ᭱⾲㠃ࡢ /L321 ࢝ࣂ࣮ᒙࡣࢫࣃࢵࢱࣜࣥࢢࣉࣟࢭࢫࢆ⏝࠸࡚ $U 
VFFP 1 VFFP ΰྜ࢞ࢫࢆ 3Dࠊ5) 㟁ຊࢆ : :FP ࡢ᮲௳࡛ࠊ㈇ᴟ
⭷⾲㠃࡟ /L321 ᒙࢆ QP ࡢཌࡉ࡛ሁ✚ࡉࡏࡓ>ᐇ㦂 @ࠋᨺ㟁࢝ࢯ࣮ࢻᇶᯈ
㛫㊥㞳ࢆ  PP ࡜ࡋࡓࠋࡑࡢᚋ㺂඘ᨺ㟁⿦⨨ࢆ⏝࠸࡚ᐃ㟁ὶヨ㦂ࢆ⾜࠸㺂/L ࢖࢜ࣥ㟁ụࡢ඘ᨺ㟁ᐜ㔞ࡢࢧ࢖ࢡࣝ≉ᛶࢆホ౯ࡋࡓࠋᅗ  ࡟ 6L ࠾ࡼࡧ & ༢┦⭷࡜ 6L& ΰྜ⭷ࠊ6L&& ✚ᒙ⭷ࢆ㈇ᴟ࡜ࡍࡿ /L ࢖࢜ࣥ㟁ụࡢᨺ㟁ᐜ㔞ࢧ࢖ࢡࣝ≉ᛶࢆ♧ࡍ>ᐇ㦂 @ࠋ6L& ΰྜ⭷ࡣ 6L ࡜ & ࡢ㉁− 38 −

&࣮ࣞࢺF\FOH&F\FOH&F\FOH&F\FOH&&༢య⭷ȣP&KDUJH
&༢య⭷ȣP'LVFKDUJH
6L༢య⭷㹼QP&KDUJH
6L༢య⭷㹼QP'LVFKDUJH
6L&ΰྜ⭷ 6L&  &KDUJH
6L&ΰྜ⭷ 6L&  'LVFKDUJH
6L&ΰྜ⭷ 6L&  &KDUJH
6L&ΰྜ⭷ 6L&  'LVFKDUJH
6L&&✚ᒙ⭷&KDUJH
6L&&✚ᒙ⭷'LVFKDUJH&DSDFLW\>P$KJ@

















&\FOH1XPEHU








ᅗ 6L ࢼࣀ⢏Ꮚ༢ᒙ⭷㈇ᴟࡢᨺ㟁ᐜ㔞㸫ࢧ࢖ࢡࣝ≉ᛶࠋ&࣮ࣞࢺF\FOH&F\FOH&F\FOH&F\FOH&

6L༢య⭷㹼QP
/L321࢝ࣂ࣮6L⭷
6L&ΰྜ⭷ 6L& 
/L321࢝ࣂ࣮ΰྜ⭷ 6L&  
6L&ΰྜ⭷ 6L& 
/L321࢝ࣂ࣮6L&ΰྜ⭷ 6L&  
6L&&✚ᒙ⭷
/L321࢝ࣂ࣮6L&&✚ᒙ⭷&DSDFLW\>P$KJ@



















&\FOH1XPEHUᅗ /L321 ࢝ࣂ࣮6L& ㈇ᴟࡢࢧ࢖ࢡࣝ≉ᛶࠋ㔞ẚࡀ  ㉥ ࡢ㟁ụࡀ  ࢧ࢖ࢡࣝᚋ࡟࠾࠸࡚ࡶ P$KJ ࡢᐜ㔞ࢆ♧ࡋࠊ
㏻ᖖࡢ & ㈇ᴟ /L ࢖࢜ࣥ㟁ụ 㯮 ࡢᐜ㔞ࢆୖᅇࡿ⤖ᯝࢆᚓࡓࠋࡲࡓ 6L&& ✚ᒙ⭷ ᶳ ࡛ࡣࠊᐜ㔞ࡣ  P$KJ ࡛࠶ࡿࡶࡢࡢᐜ㔞⥔ᣢ⋡ ࡜ 6L ༢య㈇ᴟ㟷 ࡢ ࡟ẚ࡭ᐜ㔞⥔ᣢ⋡ࢆ኱ᖜ࡟ᨵၿࡋࡓࠋᅗ  ࡟㈇ᴟ⾲㠃ࢆ /L321 ᒙ࡛࢝ࣂ࣮ࡋࡓ㈇ᴟ⭷ࡢᨺ㟁ᐜ㔞ࢧ࢖ࢡࣝ≉ᛶࢆ♧ࡍ>ᐇ㦂 @ࠋ6L ༢య⭷ࡣ /L321࢝ࣂ࣮㟁ụ ỈⰍ ࡛ࡣࠊ࢝ࣂ࣮࡞ࡋ㟁ụ 㟷 ࡢ  P$KJ ࡜ẚ࡭ࠊᐜ㔞 P$KJ ࡜࡞ࡾࠊᐜ㔞ࡣ኱ᖜ࡟ྥୖࡋࡓࠋ
ᮏ◊✲࡛ࡣ 6L ⢏Ꮚ࡜ & ⢏Ꮚࢆ  ࡢ㉁㔞ẚ࡛ΰྜࡍࡿࡇ࡜࡛ᚑ᮶ࡢ & ㈇ᴟࢆୖᅇࡿᐜ㔞  P$KJ ࢆᐇ⌧ࡋࡓࠋࡲࡓ㈇ᴟ⾲㠃࡟ /L321 ࢝ࣂ࣮ᒙࢆタࡅࡿࡇ࡜࡛ᐜ㔞ࡀ኱ࡁࡃྥୖࡍࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋ
㸦ඹྠ◊✲ศ㔝㸸ᚤ⣽᥋ྜᏛศ㔝㸧− 39 −

! AEI GI4I$'_xwloloÏ®c§ªÈ
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 GI4IØÍ  $)  $ÚLÍ  $ !  $ÙÚm¿15 !

¹ÛÚÃzÚ ' ! 15ÂVËuSÖÕ&Ú! 15)P¢  GI4IÎ£ !('ÛÚGI4I?F5{ GI4I@IC{[~b± ! AEI GI4I

)Î£Û§ª¥¤Ú # Ú ²A+FC_x 'GI4I?F5{ GI4
I@IC{ Rn'_x¼ÛieÚ»ÒÉcKÚa $   A+FC© _x 'GI4I@IC{ RnÅ'ÛÝÛ§ª
#" Úa $   © _xP¢  GI4IGI4I?F5{ GI4I@IC{ )¨ÛdJGI4I?F5{ ÚGI4I@IC{¼(ÚAD8;;8B@IC<I=9@IC Y^ÛGI4I?F5{ :IFM ¦?F5&ÚvÔ?F5y %& &Ú:IFÍ  & &ÚvÔ?F5r':IF->F2I ÛAD8;;8B@ICÚ@IC}  $$ &Ú  qT   Û<I=9@ICÚ@IC}  $$ &Ú  q
T   ÛGI4I@ICÁÑ  $$ GH6$&ÐU(ÚAD8;;8B@IC   &Ú<I=9@IC    Û¯&Äf ( Úa $   A+FC¶ÒGI4I@IC s(Û#"  GI4IGI4I?F5{ GI4I@IC{ ÛØÙvÔ?F5lhÛ
ØÙ?F5WOhÛØÙAD8;;8B@ICÛØ Ù<I=9@ICÛÞÛ­
:IFM ¦?F5  GI4I$'a $   A+FC_xÚAD8;;8B@ICs®sAF-H5
Ø ?F5&AF-H5 ' s?F5Ù«  $ NK¾Ç© {(Ú<I=9@ICs®sAF-H5«  $ NK¾Ç© {(Û#" Ú®sAF-H
5« $ $'_xQ)¨Û_x¶Ò`¡Ú³´$ ©f&¡Û

#" Ú :IFM ¦?F5  GI4I$'a $   A+FC_x)¨ÛØÙØÙ®sAF-H5Rn'·Ò©}r'¶Ò©}]cÚ!&©Z\{ )¨Û:I?IºX Z\{ )¨Ú$&l TXÌ Z\{ )¨Ú$&tTÆXÌ { Z\)¨Û3HBF¶Ò/A78; $$  'sÚZ\{ AD8;;8B− 40 −

#" a $   A+FC« $ s$'_xQÛ

#" a $   A+FC_xÛ×ÀÚÚ¬/A78; $$ØÙ $$Ú $$Ú $$ )¨ÛØÙAD8;;8B$'¶Ò©}·Ò©}ÛØÙ<I=9@IC$'¶Ò©}·Ò©}ÛØÙAD8;;8B@IC$'¶Ò  }¶Ò©}ÛØ Ù<I=9@IC$'¶Ò  }¶Ò©}Û@IC"<I=9@IC"XÌ ÛÚ*,;A.I05sÚAD8;;8B@IC$']c«  &Ú<I=9@IC$']c« &ÚZ\{  X Û!Ú*,;A.I05sÚs?F5)j_"Z\{ k`¡ÛØÙØ ÙÚ®sA
F-H5Rn'¶Ò©}r'¶Ò  }]c)¨ÛW

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8B@IC$']c«  &Ú<I=9@IC$']c«  &Ú<I=9@IC$' ]c ut Û (Ú@IC¸|Ó$'"°%('Û!Ús?F5)j_"  l k`¡ÛßÛ­½AD8;;8B@IC<I=9@IC):IFM ¦?F5  GI4I$'a $   A+FC_x ¼(Û :IFM ¦?F5 _x ¡Ú3HBF¶Ò 

GI4

I@IC{ Rn'ÚGI4I@IC{ $&_x k`'°%(ÛAD8;;8B@I
C<I=9@ICÚÒ 'u?F5sÚ_x­¡Û*,;A.I05

sÚZ\{  d Ú l <I=9@ICs$&Û Ú%
!!GI4I?F5{ GI4I@IC{ $'!!¿_x¼'ÛØd§ªÊGI4IB75oÊÙ− 41 −

࣮ࣞࢨ↷ᑕ᮲௳ࢆᥦ᱌ࡍࡿ AI ࡢ㛤Ⓨᮾிᕤ⛉኱Ꮫ ᕤᏛ㒊 ኱ஂಖ཭㞞ᕤᏛ◊✲⛉ 㔠஭⚽ኴ

1. ࡣࡌࡵ࡟
ࡶࡢ࡙ࡃࡾ❧ᅜࢆ┠ᣦࡍᡃࡀᅜࡣ㸪ṧᛕ࡞ࡀࡽ᭱᪂ࡢຍᕤᢏ⾡࡛࠶ࡿ࣮ࣞࢨຍᕤ࡟㛵ࡋ࡚㸪≉࡟ࢥࣥࣆࣗ
࣮ࢱࢆ᥼⏝ࡋࡓᢏ⾡ࡢ᭱㐺໬ࡸ⌧㇟⌮ゎ࡟ࡘ࠸࡚㸪Ḣ⡿࡟኱ࡁࡃᚋࢀࢆྲྀࡗ࡚࠸ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ィ⟬㈇Ⲵࡢ㍍࠸⡆᫆ィ⟬ࣔࢹࣝ࡜ᶵᲔᏛ⩦ࢆ⤌ࡳྜࢃࡏࡿࡇ࡜࡟ࡼࡾ㸪ᐃᛶⓗ࡟࣮ࣞࢨຍᕤ࡛⏕ࡌࡿ」㞧࡞⌧㇟ࢆᏛ⩦ࡍࡿࢧ࢖ࣂ࣮ࣇ࢕ࢪ࢝ࣝࢩࢫࢸ࣒(CPS)ࡢᵓ⠏ࢆ┠ᣦࡍ㸬ᮏ◊✲࡛ࡣ㸪࣮ࣞࢨຍᕤ࡛⏕ࡌࡿ」㞧࡞⌧㇟ࢆᐃᛶⓗ࡟ᶍᨃฟ᮶ࡿ⡆᫆ⓗ࡞ィ⟬ࣔࢹࣝ࡟ࡼࡾ࣮ࣞࢨຍᕤ࡟㛵ࡍࡿ㇏ᐩ࡞ࢹ࣮ࢱࢆ⏕ᡂࡋ㸪ࡑࢀࡽࢆ⏝࠸࡚ᶵᲔᏛ⩦ࢆ⾜࠸㸪⌧㇟ࡢᐃᛶⓗ࡞⌮ゎཬࡧ᭱㐺໬ࡀྍ⬟࡜࡞ࡿࢩࢫࢸ࣒ࡢ㛤Ⓨࢆ┠ᣦࡍ㸬᫖ᖺᗘࡣ㸪ᐃⅬ↷ᑕ᫬࡟࠶ࡿ

ᗘศᕸࢆᐇ⌧ࡍࡿࡓࡵࡢ࣮ࣞࢨ↷ᑕᗙᶆࢆ᥎ᐃࡍࡿ AI ࢆ㸪඲⤖ྜࢽ࣮ࣗࣛࣝࢿࢵࢺ࣮࣡ࢡ㸦FCNN: Fully connected neural network㸧ࢆ⏝࠸࡚㛤Ⓨࡍࡿྲྀࡾ⤌ࡳ࡟ࡘ࠸࡚ሗ࿌ࡋࡓ㸬௒ᖺᗘࡣ㸪࣮ࣞࢨ↷ᑕ㠃ࡢ ᗘศᕸࡀ 2 ḟඖࢹ࣮ࢱ࡛࠶ࡿࡇ࡜࠿ࡽ㸪⏬ീㄆ㆑➼࡟Ⰻࡃ⏝࠸ࡽࢀ࡚࠾ࡾ 2 ḟඖࢹ࣮ࢱࡢண ࡟᭷ຠ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ␚ࡳ㎸ࡳࢽ࣮ࣗࣛࣝࢿࢵࢺ࣮࣡ࢡ㸦CNN: Convolutional Neural
Network㸧ࢆ⏝࠸ࡓ↷ᑕᗙᶆࢆ᥎ᐃࡍࡿ AI ࡢ㛤Ⓨ࡟ࡘ࠸࡚ሗ࿌ࡍࡿ㸬

2. 㛤Ⓨࡋࡓࢽ࣮ࣗࣛࣝࢿࢵࢺ࣮࣡ࢡ࡟ࡘ࠸࡚

ࢹ࣮ࢱࢭࢵࢺࡢసᡂ࡟ࡘ࠸࡚ࡣ᫖ᖺᗘ࡜࡯ࡰྠᵝ࡛࠶ࡿࡢ࡛ㄝ᫂ࢆ┬␎ࡍࡿ㸬ᮏ◊✲࡛ࡣ㸪ධຊᒙࢆ 41

411 ࡢ 2 ḟඖࢹ࣮ࢱ࡜ࡋ㸪ࡑࡢᚋ␚ࡳ㎸ࡳᒙ࡜ࣉ࣮ࣜࣥࢢᒙࢆ 2 ᒙタࡅ㸪ࡑࡢᚋ࡟ 1 ḟඖ໬ࢆࡋ࡚ฟຊࡍ
ࡿࣔࢹࣝࢆ㛤Ⓨࡋࡓ㸬ฟຊᒙࡢࣀ࣮ࢻࡢᩘࡀ 1 ࡞ࡢࡣ FCNN ࡜ྠᵝ࡟㸪↷ᑕᗙᶆ ‫↷ࡣࡓࡲݔ‬ᑕᗙᶆ ‫ࡢݕ‬࠸ࡎࢀ࠿୍᪉ࡢࡳࢆண ࡍࡿࡓࡵ࡛࠶ࡿ㸬ࡇࡢࢽ࣮ࣗࣛࣝࢿࢵࢺ࣮࣡ࢡࢆ࣮࣋ࢫ࡜ࡋ࡚㸪ྛࣁ࢖ࣃ࣮ࣃ࣓ࣛ
࣮ࢱࢆኚ໬ࡉࡏࡓ㝿ࡢண ⢭ᗘࢆẚ㍑᳨ウࡋࡓ㸬࣮࣋ࢫ࡜ࡋࡓࢿࢵࢺ࣮࣡ࢡᵓᡂࢆ⾲㸯࡟㸪࣮࣋ࢫࡢࣁ࢖ࣃ࣮ࣃ࣓࣮ࣛࢱ➼ࢆኚ᭦ࡋ࡚⤖ᯝࢆẚ㍑ࡋࡓ㸪ྛࢿࢵࢺ࣮࣡ࢡࡢኚ᭦Ⅼࢆ⾲ 2 ࡟♧ࡍ㸬⾲㸯 ᇶᮏᵓᡂ          ⾲㸰 ẚ㍑ࡋࡓࢿࢵࢺ࣮࣡ࢡࡢኚ᭦Ⅼ− 42 −

3. ⤖ᯝ࡜⪃ᐹᮏ◊✲࡟࠾ࡅࡿホ౯࡟ࡣ MAPE (Mean Absolute Percentage Error) ࢆ⏝࠸ࡓ㸬݊ࢆࢹ࣮ࢱᩘ㸪‫ݐ‬௞ ࢆ݇␒┠ࡢṇゎ್㸪‫ݕ‬௞ ࢆ݇␒┠ࡢண ್㸪‫ݕ‬ҧࢆண ್ࡢᖹᆒ್࡜ࡋࡓ㝿࡟㸪MAPE ࡣ௨ୗࡢᘧ࡛ồࡵࡿࡇ࡜ࡀ࡛ࡁࡿ㸬
MAPE ࡢ༢఩ࡣ%࡛࠶ࡾ㸪್ࡀᑠࡉ࠸࡯࡝ண ࡢㄗᕪࡀᑠࡉ࠸࡜࠸࠼ࡿ㸬௡ͳͲͲ‫ݕ‬ത െ ‫ݐ‬௞ ൌ
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௞ୀଵ

ࢸࢫࢺࢹ࣮ࢱࢆ⏝࠸࡚㸪ྛࢿࢵࢺ࣮࣡ࢡࢆホ౯ࡋࡓ⤖ᯝࢆᅗ 1 ࡟♧ࡍ㸬඲࡚ࡢࢿࢵࢺ࣮࣡ࢡ࡟࠾࠸࡚㸪
MAPE ࡀ 3%௨ୗ࡛ண ࡍࡿࡇ࡜࡟ᡂຌࡋࡓ㸬ࡲࡓ㸪࣮࣋ࢫ࡜ࡋࡓࢿࢵࢺ࣮࣡ࢡࡢ MAPE ࡣ௚ࡢࢿࢵࢺ࣡
࣮ࢡ࡜ẚ㍑ࡋ࡚᭱ࡶ኱ࡁࡃ㸪⾲ 2 ࡟♧ࡋࡓኚ᭦Ⅼࡣ㸪࡝ࢀࡶண ⢭ᗘࡢྥୖ࡟ᐤ୚ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࢽ࣮ࣗࣛࣝࢿࢵࢺ࣮࣡ࢡࡢᵓᡂࢆỴᐃࡍࡿࡓࡵࡢྛࣁ࢖ࣃ࣮ࣃ࣓࣮ࣛࢱࡢỴᐃࡢ௙᪉࡟Ỵᐃᡴࡣ௒ࡢ࡜ࡇࢁ
↓࠸ࡀ㸪ᮏ◊✲࡟࠾࠸࡚ࡣ࣮࢝ࢿࣝࢧ࢖ࢬࢆ 4 ࠿ࡽ 5 ࡟ቑࡸࡋ࡚ࡶ࠶ࡲࡾຠᯝࡀ↓࠿ࡗࡓࡢ࡟ᑐࡋ㸪࣮࢝ࢿࣝࡢᯛᩘ࡟ࡘ࠸࡚ࡣ㸪8, 16, 32 ࡜ቑࡸࡍ⛬ຠᯝࡀ࠶ࡿࡶࡢࡢ 64 ࡛ࡣຠᯝࡀ↓࠸ࡇ࡜ࡀศ࠿ࡗࡓ㸬ᅗ 1 ྛࢿࢵࢺ࣮࣡ࢡ࡛Ꮫ⩦ࡋࡓ㝿ࡢ MAPE ࡢẚ㍑ࡋ࠿ࡋ㸪᫖ᖺᗘሗ࿌ࡋࡓ FCNN ࡛ྠᵝࡢホ౯ࢆ⾜ࡗࡓ࡜ࡇࢁ MAPE ࡣ↷ᑕᗙᶆࡢ‫ݔ‬ᗙᶆ㸪‫ݕ‬ᗙᶆඹ࡟ 0.1%⛬ᗘ࡛࠶ࡗࡓ㸬௒ᖺᗘ⏝࠸ࡓ CNN ࡢィ⟬㈇Ⲵࡀ㧗࠸ࡇ࡜ࢆ⪃࠼ࡿ࡜㸪ࣁ࢖ࣃ࣮ࣃ࣓࣮ࣛࢱࡢኚ᭦࡟ࡼࡾண
⢭ᗘࡀྥୖࡍࡿ࡜ࡣゝ࠼㸪CNN ࡢຠᯝࡣప࠸࡜ゝࢃࡊࡿࢆᚓ࡞࠸㸬ࡇࡢཎᅉ࡜ࡋ࡚㸪ᮏ◊✲࡛ࡢ࣮ࣞࢨ↷ᑕ᮲௳ࡣ 1 Ⅼ࡛ࡢᐃⅬ↷ᑕ࡛࠶ࡾ㸪2 ḟඖࡢᗘศᕸࢆ 1 ḟඖ࡟ᒎ㛤ࡋ࡚ࡶ࠶ࡿ⛬ᗘつ๎ṇࡋ࠸ᙧ≧ࢆࡋ࡚࠸ࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬↷ᑕᗙᶆࡢ᥎ᐃࡣ㸪ᐃⅬ↷ᑕ࡟࠾࠸࡚ࡣ஦
ᐇୖ᭱ࡶ ᗘࡢ㧗࠸Ⅼࢆ᥈ࡍసᴗ࡛ࡋ࠿࡞࠸㸬ࡑࡢࡓࡵ㸪2 ḟඖࢹ࣮ࢱ࡟ᮏ᮶᭷ຠ࡛࠶ࡿࡣࡎࡢ CNN ࡢࡼ࠺࡞」㞧࡞ィ⟬ࢆࡏࡎ࡜ࡶ༢⣧࡞ FCNN ࡛༑ศண ࡀฟ᮶ࡓࡢ࡛ࡣ࡞࠸࠿࡜⪃࠼ࡽࢀࡿ㸬௒ᚋࡣ㸪ࡼࡾከࡃࡢ࣮ࣞࢨ↷ᑕࣃ࣓࣮ࣛࢱࢆ᥎ᐃࡍࡿ AI ࡢ㛤Ⓨ࡟ྲྀࡾ⤌ࡴணᐃ࡛࠶ࡿ㸬㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧− 43 −

䝺䞊䝄ຍᕤ䛻䛚䛡䜛䝡䞊䝮䛸ᮦᩱ䛾┦஫స⏝䛺䜙䜃䛻䝺䞊䝄ຍᕤ⌧㇟䛾ゎ᫂䠄䛭䛾䐡䠅㻌㻌⚟ᒸ┴ᕤᴗᢏ⾡䝉䞁䝍䞊ᶵᲔ㟁Ꮚ◊✲ᡤ㻌ᓥᓮⰋ䚸ᓥ⏣㞞༤䚸ᑠᕝಇᩥ㻌
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㻌 䝺䞊䝄ᢏ⾡䜢ά⏝䛧䛯㔠ᒓᮦᩱ⾲㠃ฎ⌮ᢏ⾡䛾㛤Ⓨ䛜ᵝ䚻䛺ศ㔝䛷ᮇᚅ䛥䜜䛶䛔䜛䚹ᮏ◊✲䛷䛿䚸䝤䝹䞊䝺䞊䝄䛻䜘䜛ᶵᲔᵓ㐀⏝Ⅳ⣲㗰ᮦ䜈䛾㖡⫗┒ᢏ⾡☜❧䜢┠ⓗ䛻䚸㖡⫗┒䛻ཬ䜌䛩ຍᕤ᮲௳䛾ᙳ㡪䛻䛴䛔䛶᳨ウ䛧䛯䚹㻌㻌䠎䠊◊✲᪉ἲ㻌ヨ㦂∦స〇䛻䛿䚸ᇶᮦ䛻ᶵᲔᵓ㐀⏝Ⅳ⣲㗰ᮦ 㻿㻡㻜㻯䠄㻡㻜㽢㻡㻜㽢㼠㻝㻜㼙㼙䚸⾲㠃䛿䝣䝷䜲䝇ຍᕤ௙ୖ䛢䠅䚸⫗┒ᮦ䛻㻯㼡 ⢊ᮎ䠄⢏ᚄ 㻞㻜䡚㻟㻤䃛㼙䠅䜢⏝䛔䛯䚹䝤䝹䞊䝺䞊䝄ຍᕤ⿦⨨䠄㻠㻡㻜㼚㼙䚸䝬䝹䝏䝡䞊䝮 㻞 ᮏ䠅䛷⫗┒ヨ㦂∦䜢స〇䛧䛯䚹ຍᕤ᮲௳䛿䚸䝺䞊䝄ฟຊ䠄㼃䠅䜢ኚᩘ䛸䛧䛯䚹ヨ㦂∦సᡂᚋ䚸䝺䞊䝄㢧ᚤ㙾䛷⫗┒㒊እほ䜢ほᐹᚋ䚸⫗┒ຍᕤ᪉ྥ䛻ᑐ䛧┤஺᪉ྥ䛻ヨ㦂∦䜢ษ᩿䛧䚸⫗┒㒊᩿㠃⤌⧊ほᐹ䜢⾜䛳䛯䚹᩿㠃⤌⧊ほᐹ䛿䚸䝁䝻䜲䝎䝹䝅䝸䜹䛷㙾㠃◊☻௙ୖ䛢䛧䚸䝘䜲䝍䞊䝹ᾮ䛷䜶䝑䝏䞁䜾䜢⾜䛳䛯䚹㻌䠏䠊⤖ᯝ㻌㻌 ⫗┒ᒙᙧᡂ≧ែ䛸䝺䞊䝄ฟຊ䛸䛾㛵ಀ䛻䛴䛔䛶᳨ウ䛩䜛䛯䜑ᇶᮦ 㻿㻡㻜㻯 䛻㛗䛥 㻝㻡㼙㼙 䛾 㻝 䝟䝇⫗┒䜚䜢⾜䛳䛯䚹ຍᕤ㏿ᗘ㻔㻝㻜㼙㼙㻛㼟㻕䜢୍ᐃ䛸䛧䚸䝺䞊䝄ฟຊ䛿 㻞㻜䡚㻞㻜㻜㼃 䛷ኚ໬䛥䛫䛯䚹⢊ᮎ㏦⤥㔞䛿䚸㻝㻜㻘㻌 㻞㻡㼙㼓㻛㼟 䛸䛧䛯䚹ᅗ 㻝 䛻⫗┒䝡䞊䝗䛾୰ᚰ௜㏆እほ䜢♧䛩䚹䝺䞊䝄ฟຊ 㻞㻜㻘㻌 㻟㻜㼃 䛷䛿䚸⫗┒䝡䞊䝗䛜ᙧᡂ䛥䜜䛺䛛䛳䛯䚹䝺䞊䝄ฟຊቑຍ䛻క䛔⫗┒䝡䞊䝗䛾ᖜ䛜ᗈ䛟䛺䛳䛯䚹⢊ᮎ㏦⤥㔞 㻞㻡㼙㼓㻛㼟 䛾᪉䛜䚸⫗┒ᒙ⾲㠃䛜⁥䜙䛛䛷䛒䛳䛯䚹㻌
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ᅗ 㻝㻌 䝺䞊䝄ฟຊ䛸⫗┒ᒙእほ䛾㛵ಀ䠄⢊ᮎ౪⤥㔞䚸ୖ 㻞 ิ䠖㻝㻜㼙㼓㻛㼟䚸ୗ 㻞 ิ䠖㻞㻡㼙㼓㻛㼟䠅㻌㻌㻌 ᅗ 㻞 䛻⫗┒䝡䞊䝗䛾᩿㠃⤌⧊䜢♧䛩䚹䝺䞊䝄ฟຊ䛾ቑຍ䛻క䛔䚸⫗┒䝡䞊䝗䛾ᖜ䛸㧗䛥ཬ䜃ᇶᯈഃ⇕ᙳ㡪㒊䛾ᖜ䚸῝䛥䛿ቑຍ䛧䛯䚹⢊ᮎ㏦⤥㔞 㻝㻜㼙㼓㻛㼟 䛾ሙྜ䛿䝺䞊䝄ฟຊ 㻝㻝㻜㼃 ௨ୖ䛷䚸㻞㻡㼙㼓㻛㼟 䛾ሙྜ䛿䝺䞊䝄ฟຊ 㻝㻞㻜㼃 ௨ୖ䛷䚸⫗┒䝡䞊䝗䛾ᇶᯈ䜈䛾⁐䛡㎸䜏䛜ほᐹ䛥䜜䛯䚹䜎䛯䚸⫗┒䝡䞊䝗୰䛻䝪䜲䝗䛜ほᐹ䛥䜜䚸ட⿣䛜䚸㻝㻜㼙㼓㻛㼟 䛾ሙྜ䛿䚸⫗┒䝡䞊䝗㻛⇕ᙳ㡪㒊ቃ⏺௜㏆䚸⫗┒䝡䞊䝗ෆ䛷䚸㻞㻡㼙㼓㻛㼟 䛾ሙྜ䛿䚸⇕ᙳ㡪㒊䛷䝷䞁䝎䝮䛻ほᐹ䛥䜜䛯䚹⇕ᙳ㡪㒊䛿䚸䝬䝹䝔䞁䝃䜲䝖⤌⧊䛻䛺䛳䛶䛚䜚⫗┒䝡䞊䝗䛾จᅛ཰⦰䛾ᙳ㡪䜢ཷ䛡䛶ட⿣䛜⏕䛨䛯䛸⪃䛘䜙䜜䜛䚹㻌− 44 −

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ᅗ 㻞㻌 䠍䝟䝇⫗┒䝡䞊䝗᩿㠃⤌⧊䛾ẚ㍑䠄⢊ᮎ౪⤥㔞䚸ୖ 㻞 ิ䠖㻝㻜㼙㼓㻛㼟䚸ୗ 㻞 ิ䠖㻞㻡㼙㼓㻛㼟䠅㻌᩿㠃⤌⧊䜘䜚䚸⫗┒䝡䞊䝗䜈䛾ᇶᮦඖ⣲䛾⁐䛡㎸䜏䛜⪃䛘䜙䜜䛯䛾䛷䚸⫗┒䝡䞊䝗እほ䛜᭱䜒Ⰻዲ䛰䛳䛯䝺䞊䝄ฟຊ 㻝㻟㻜㼃 䛾⫗┒䝡䞊䝗᩿㠃䛻䛚䛔䛶 㻱㻼㻹㻭 㠃ศᯒ䜢⾜䛳䛯䚹䛭䛾⤖ᯝ䜢ᅗ 㻟 䛻♧䛩䚹⫗┒䝡䞊䝗䛾୰䛻 㻲㼑 䛜⁐䛡㎸䜣䛷䛚䜚䚸ᇶᮦ䛾᪉䛻 㻯㼡 䛿⁐䛡㎸䜣䛷䛔䛺䛔䛣䛸䛜ศ䛛䛳䛯䚹㻌
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ࢪࡢ୍ࡘ࡛࠶ࡿ 4XDQWXP(VSUHVVR 4( >@ࢆ⏝࠸࡚Ỵᐃࡋࡓ㸬ᅗ  ࡟㸪⼥Ⅼ࠿ࡽἛⅬ㏆ഐࡲ࡛ࡢ ᗘ . ᕥ 㸪. ୰ᅗ. ᕥ 㸪. ୰ኸ 㸪. ྑ ࡟ᑐࡍࡿྂ඾ศᏊືຊᏛ࡟ࡼࡿཎᏊᩘࡀ ಶࡢ✵㛫㓄⨨࡜ ಶ࡜[ ಶࡢືᚄศ
ᕸ㛵ᩘJ U ୖ 㸪➨୍ཎ⌮㟁Ꮚ≧ែィ⟬࡟ࡼࡿ㟁Ꮚ≧ែᐦᗘ '26 ୰ 㸪」⣲ㄏ㟁⋡Ȝࡢ⹫㒊 ୗ 㸬

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ࡲࢀࡿ ($0 HPEHGGHGDWRPPHWKRG ࣏ࢸࣥࢩࣕࣝ>@ࢆ⏝࠸ࡓ㸬ཎᏊᩘࡀ  ಶࡢ✵㛫ᵓ㐀࡜  ಶ࡜ [ ಶࡢືᚄศᕸ
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㟷Ⰽ༙ᑟయ࣮ࣞࢨ࣮ࢆ⏝࠸ࡓ /0' ἲ࡟ࡼࡿ 1L ྜ㔠ࡢ㐀ᙧ኱㜰⏘ᴗ኱Ꮫ኱Ꮫ㝔 ᕤᏛ◊✲⛉ⲡሙග༤࣭ᯇ⏣㝯ᖹ ┠ⓗࢽࢵࢣࣝྜ㔠ࡣ㧗ᙉᗘࠊ⪏ೃᛶࠊ⪏⭉㣗ᛶ࡞࡝ࡢ≉ᛶ࡟ඃࢀ࡚࠾ࡾࠊࢪ࢙ࢵࢺ࢚ࣥࢪࣥࡸⓎ㟁ᶵࡢࢱ࣮ࣅࣥࣈࣞ
࣮ࢻ➼࡟ᗈࡃᛂ⏝ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊࢽࢵࢣࣝྜ㔠ࡣ㞴๐ᮦࡢࡓࡵษ๐ຍᕤࡀ㞴ࡋ࠸ࠋࡑࡇ࡛ࠊ㔠ᒓࡢ ' ࣉࣜࣥࢸ࢕ࣥࢢᢏ⾡ࡢ୍ࡘ࡛࠶ࡿ࣮ࣞࢨ࣮㔠ᒓሁ✚ἲ /DVHU0HWDO'HSRVLWLRQ㸸/0' ἲ ࡟╔┠ࡋࡓࠋ/0' ἲࡣࠊຍᕤ
Ⅼ࡟㔠ᒓ⢊ᮎࢆ౪⤥ࡋ࡞ࡀࡽ࣮ࣞࢨ࣮ࢆ↷ᑕࡍࡿࡇ࡜࡟ࡼࡾࠊ⢊ᮎࢆ⁐⼥࣭จᅛࡉࡏ୍࡚ᒙࡢ⓶⭷ࢆᙧᡂࡋࠊࡇࢀ
ࢆ⧞ࡾ㏉ࡍࡇ࡜࡛❧యⓗ࡞㐀ᙧࢆ⾜࠺ᡭἲ࡛࠶ࡿࠋ/0' ἲ୍࡛⯡ⓗ࡟⏝࠸ࡽࢀࡿ࣮ࣞࢨ࣮ࡣἼ㛗 aQP ࡢ㏆㉥እ⥺࣮ࣞࢨ࣮࡛࠶ࡿࠋࡇࡢ࣮ࣞࢨ࣮ࡣࢽࢵࢣࣝ࡟ᑐࡍࡿග྾཰⋡ࡀ⣙ 㸣࡜పࡃࠊࡇࢀ࡟ᑐࡋ࡚ࠊἼ㛗 QP
ࡢ㟷Ⰽ༙ᑟయ࣮ࣞࢨ࣮ࡢග྾཰⋡ࡣ⣙ 㸣࡜㧗࠸ࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ㟷Ⰽ༙ᑟయ࣮ࣞࢨ࣮ࢆ⏝࠸࡚ࠊࢽࢵࢣࣝ
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࣮ࢨ࣮ࢆ  ྎ⏝࠸ࠊࢥ࢔ᚄ P ࡢගࣇ࢓࢖ࣂ࣮࡛ຍᕤ࣊ࢵࢻෆ㒊࡬ఏ㏦ࡋࡓࠋගࣇ࢓࢖ࣂ࣮࠿ࡽฟᑕࡉࢀࡓࣞ
࣮ࢨ࣮ࣅ࣮࣒ࡣ㞟ගࣞࣥࢬ࡟ࡼࡾ 686 ᇶᯈୖࡢຍᕤⅬ࡛㔜␚ࡋࡓࠋࢫ࣏ࢵࢺᚄࡣ್༙඲ᖜ࡛ P ࡜ࡋࡓ )LJ E ࠋᮦᩱ⢊ᮎ࡜ࡋ࡚ᖹᆒ⢏ᚄ P ࡢ࢖ࣥࢥࢿࣝ  ⢊ᮎࢆ⏝࠸ࠊຍᕤ࣊ࢵࢻ୰ኸ࡟㓄ࡋࡓ⢊ᮎ౪⤥ࣀࢬࣝ࡟ࡼࡗ࡚ຍᕤⅬ࡟౪⤥ࡋࡓࠋPPPPPP ࢧ࢖ࢬࡢ 686 ᇶᯈࢆ㟁ືࢫࢸ࣮ࢪୖ࡟㓄ࡋࠊ[\]㟁ືࢫࢸ࣮ࢪ࡟ࡼࡾ[ ᪉ྥ࡬⛣ືࡉࡏ࡞ࡀࡽ࣮ࣞࢨ࣮↷ᑕ࡜⢊ᮎ౪⤥ࢆྠ᫬࡟⾜࠺ࡇ࡜࡛ࠊ㛗ࡉ PP ࡢࢩࣥࢢࣝࣅ࣮
ࢻࢆᙧᡂࡋࡓࠋᐇ㦂᮲௳ࡣ࣮ࣞࢨ࣮ฟຊ :ࠊᤲᘬ㏿ᗘ PPV ࢆࣃ࣓࣮ࣛࢱ
࣮࡜ࡋࡓࠋ࣮ࣞࢨ࣮↷ᑕᚋࠊࢧࣥࣉࣝࢆษ᩿࣭ᶞ⬡ᇙࡵ࣭◊☻ࡋ࣐࢖ࢡࣟࢫࢥ࣮ࣉࢆ⏝࠸࡚᩿㠃ほᐹࢆ⾜࡞ࡗࡓࠋḟ࡟ࠊࣅ࣮ࢻࡢ᩿㠃✚ࢆ ᐃࡋ㐀ᙧຠ⋡ཬࡧᕼ㔘⋡ࢆᑟฟࡋࡓࠋ㐀ᙧຠ⋡ ߟா ࡣ )LJ ࡜ᘧ  ࡛♧ࡍࡼ࠺࡟ࠊᤲᘬ
㏿ᗘ 9ࠊᕼ㔘᩿㠃✚ $Gࠊ࣮ࣞࢨ࣮ฟຊ 3 ࠿ࡽᑟฟࡋࠊ༢఩࢚ࢿࣝࢠ࣮ᙜࡾࡢ㐀ᙧయ✚ࢆ㐀ᙧຠ⋡࡜ᐃ⩏ࡋࡓࠋᕼ㔘⋡ ߟௗ ࡣ )LJ  ࡜ᘧ  ࡛♧ࡍࡼ࠺࡟ࠊࣅ࣮ࢻ᩿㠃✚ $Vࠊ⁐ࡅ㎸ࡳ᩿㠃✚ $G ࠿ࡽᑟฟࡋࠊࣅ࣮ࢻࡢ⥲㠃✚࡟ᑐࡍࡿᇶᯈ࡬⁐ࡅ㎸ࢇࡔࣅ࣮ࢻࡢ㠃✚ࡢ๭ྜࢆᕼ㔘⋡࡜ᐃ⩏ࡋࡓࠋ
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ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝 − 51 −

ࣃࣝࢫ࣮ࣞࢨ⢊ᮎᗋ⁐⼥⤖ྜἲ࡟ࡼࡾస〇ࡋࡓ Ti-6Al-4V ྜ㔠ࡢᚤ⣽⤌⧊࡜ᶵᲔⓗᛶ㉁㔠ἑ኱Ꮫ ኱Ꮫ㝔⮬↛⛉Ꮫ◊✲⛉ ᶵᲔ⛉Ꮫᑓᨷすᕝ ┤ஓ㔠ἑ኱Ꮫ ⌮ᕤ◊✲ᇦ ᶵᲔᕤᏛ⣔
ᅧᓟ ᓫ⿱
1. ┠ⓗ
✚ᒙ㐀ᙧ㸦Additive Manufacturing: AM㸧ᢏ⾡ࡢ୍✀࡛࠶ࡿ࣮ࣞࢨ⢊ᮎᗋ⁐⼥⤖ྜἲ㸦Laser Powder Bed Fusion: LPBF㸧ࡣ㸪㐀ᙧྍ⬟࡞ᙧ≧ࡢ⮬⏤ᗘࡀ㧗࠸ࡇ࡜࠿ࡽ㸪✀ࠎࡢ」㞧ᙧ≧ࢆ᭷ࡍࡿ㒊ᮦࡢస〇࡟㐺⏝ࡉࢀࡿ㸬L-PBF ࡛ࡣ㐃⥆ⓗ࡞࣮ࣞࢨ↷ᑕ㸦CW ࣮ࣞࢨ㸧࡟ࡼࡿຍᕤ࡟ࡼࡾ㸪ᮦᩱ࡟ࡼࡗ࡚ࡣ
౛࠼ࡤ Fig. 1 ࡟♧ࡍࡼ࠺࡞㐀ᙧ≀࡬ࡢ㐣ᗘ࡞ධ⇕࡟క࠺⇕ᛂຊ
ࡀⓎ⏕ࡋ㸪⇕ኚᙧࢆᘬࡁ㉳ࡇࡍࡇ࡜ࡀ࠶ࡿ㸬ࡇࡢㄢ㢟ࢆゎỴࡍࡿࡓࡵ࡟㸪ᮏ◊✲࡛ࡣࣃࣝࢫ࣮ࣞࢨຍᕤࢆ㐺⏝ࡋࡓࣃࣝࢫ࣮ࣞ
ࢨ⢊ᮎᗋ⁐⼥⤖ྜἲ㸦Pulsed Laser Powder Bed Fusion: PL-PBF㸧࡟ࡼࡗ࡚ຍᕤ⇕ࡢపῶ࡟ࡼࡿ⇕ኚᙧࡢᢚไࢆヨࡳ㸦Fig. 1㸧㸪ࡲ

Fig. 1. CW ࣮ࣞࢨ࡜ࣃࣝࢫ࣮ࣞࢨ࡛ᇶᮦୖ࡟

ࡓ Ti-6Al-4V ྜ㔠ࡢ✚ᒙ㐀ᙧᮦ࡟࠾ࡅࡿᚤ⣽⤌⧊ไᚚࡢྍ⬟ᛶ

PBF ࡟ࡼࡗ࡚స〇ࡋࡓヨᩱࡢᴫほࡢẚ㍑.

ࢆㄪᰝࡋࡓ㸬
2. ◊✲᪉ἲ
ᖹᆒ⢏Ꮚᚄ 22 m ࡢ Ti-6Al-4V ྜ㔠⢊ᮎࢆཌࡉ 100 m ࡛ᩜࡁ

Table 1. ࣮ࣞࢨຍᕤ᮲௳㸬1ワࡵ㸪࣮ࣞࢨ↷ᑕ࡟ࡼࡿ⁐⼥࣭จᅛࢆ⾜ࡗࡓ㸬࣮ࣞࢨ㉮ᰝ᪉ྥࡣ㸯ᒙࡈ࡜࡟ 90rᅇ㌿ࡉࡏ࡚㸪ࡇࢀࡽࢆ 20 ᒙ⧞ࡾ㏉ࡋ࡚ヨᩱࢆస〇ࡋࡓ㸬Table 1 ࡟グ㍕ࡢ᮲௳࡜㸪ୗグ᮲௳࡛✚ᒙ㐀ᙧࢆ⾜ࡗࡓ㸬ࡍ࡞ࢃࡕ㸪࣮ࣞࢨ㉮ᰝ㏿ᗘ 10 mm/s㸪ࣅ࣮࣒ࢫ࣏ࢵࢺᚄ 100 m㸪

䝺䞊䝄
ฟຊ[W]
࿘Ἴᩘ[Hz]Dutyẚ[%]

2

3

4

5

䝟䝹䝇 䝟䝹䝇 䝟䝹䝇 䝟䝹䝇 䝟䝹䝇
300
300
300
500
216
100
500
1000
100
100
50
50
50
30
70

ࣁࢵࢳࣥࢢ㊥㞳 50 m ࡛࠶ࡿ㸬ᇶᮦ࡟ࡣ⢊ᮎᮦᩱ࡜ྠᵝ࡟㸪Ti6Al-4V ྜ㔠ࢆ⏝࠸ࡓ㸬ヨᩱ␒ྕ 4㸪5㸪6 ࡛ࡣ࣮ࣞࢨฟຊ࡜ Dutyẚࡢ✚ࡀᴫࡡ୍ᐃ࡜࡞ࡿࡼ࠺࡟ࡋ࡚ᢞධ࢚ࢿࣝࢠ࣮ࢆㄪᩚࡋ
ࡓ㸬

6
CW
150
100

Upper

200m

Middle2000mLower

ࢆ࣮ࣞࢨ㉮ᰝ᪉ྥ࡜ࡋࡓᘬᙇヨ㦂㸪ヨᩱ᩿㠃࡛ࡢࣅࢵ࣮࢝ࢫᚤ

Observation
directionᑠ◳ᗘヨ㦂ࢆ⾜ࡗࡓ㸬ࡲࡓヨᩱ᩿㠃ࢆ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾㸦SEM㸧

Fig. 2. ◳ᗘヨ㦂㸪᩿㠃ほᐹ⏝ヨᩱࡢษࡾฟ

࡟ࡼࡿ཯ᑕ㟁Ꮚ㸦BSE㸧ീ࡜㟁Ꮚᚋ᪉ᩓ஘ᅇᢡ㸦EBSD㸧ീ࡟ࡼࡋ࡜ヨᩱ᩿㠃ࡢ༊ศࡅ㸬స〇ࡋࡓヨᩱࢆ⏝࠸࡚㸪ᶵᲔⓗᛶ㉁ࡢㄪᰝࡢࡓࡵ࡟ᘬᙇ᪉ྥ

Substrat eࡗ࡚ほᐹࡋࡓ㸬◳ᗘヨ㦂࡜⤌⧊ほᐹࡢ㝿࡟ࡣ㸪ヨᩱ᩿㠃ࢆୖ㒊㸪୰㒊㸪ୗ㒊࡜༊ศࡅࢆ⾜ࡗࡓ㸦Fig. 2㸧㸬
3. ◊✲⤖ᯝ
3.1. ࣮ࣞࢨ࿘Ἴᩘࡢኚ໬ࡀ Ti-6Al-4V ྜ㔠ࡢᶵᲔⓗᛶ㉁࡜ᚤ⣽⤌⧊࡟ཬࡰࡍᙳ㡪
Fig. 3 ࡟࣮ࣞࢨ࿘Ἴᩘࢆ 100㸪500㸪1000 Hz ࡜ኚ໬ࡉࡏ࡚స〇ࡋࡓヨᩱࡢබ⛠ᛂຊ-බ⛠ࡦࡎࡳ᭤⥺ࢆ♧ࡍ㸬100
Hz ࡛స〇ࡋࡓヨᩱ࡛ࡣ㸪ᙉᗘ࡜ᘏᛶࡢ࡝ࡕࡽࡶⴭࡋࡃపࡃ㸪ࡲࡓ 500 Hz ࡢ࡜ࡁ࡟᭱ࡶᶵᲔⓗᛶ㉁ࡀⰋࡃ࡞ࡿࡇ࡜
ࡀศ࠿ࡗࡓ㸬ヨᩱ᩿㠃ࢆ BSE ീ࡟ࡼࡗ࡚ほᐹࡋࡓ⤖ᯝ㸪100 Hz ࡛స〇ࡋࡓヨᩱ࡛ࡣ⢊ᮎࡢ⁐ࡅṧࡾࡸ✵㝽ࡀከᩘ− 52 −

✵㝽ࡢ⏕ᡂࡀ☜ㄆࡉࢀ㸪500 Hz ࡛స〇ࡋࡓヨᩱࡀ᭱ࡶ✵㝽ࡀᑡ࡞ࡃⰋዲ࡞㐀ᙧ᩿㠃࡛࠶ࡗࡓ࡜࠸࠼ࡿ㸬ࡇࢀࡽࡢ⤖ᯝࡼࡾ㸪ప࿘Ἴ
ᩘ࡛ࡣ 1 ᅇࡢ࣮ࣞࢨ↷ᑕᚋࡢ෭༷᫬㛫ࡀ㛗࠸ࡇ࡜ࡸ㸪㧗࿘Ἴᩘ࡛ࡣ 1 ᅇࡢ࣮ࣞࢨ↷ᑕ᫬㛫ࡀ▷࠸ࡇ࡜࡟ࡼࡾ㸪࣮ࣞࢨ↷ᑕ㡿ᇦࡢᗘୖ᪼ࡀ┦ᑐⓗ࡟୙༑ศ࡛࠶ࢁ࠺ࡇ࡜ࡀ♧၀ࡉࢀࡿ㸬1 ᅇࡢ࣮ࣞࢨ↷ᑕ᫬㛫࡜෭༷᫬㛫ࡢࣂࣛࣥࢫࡀ௒ᅇࡢ᮲௳࡛ࡣ୰㛫ࡢ 500
Hz ࡛᭱ࡶⰋࡃ㸪㐀ᙧ᩿㠃ࡀⰋዲ࡟࡞ࡗࡓ࡜᥎ ࡉࢀࡿ㸬ࡉࡽ࡟ࡇࢀࡽࡢ᩿㠃࡟ᑐࡋ࡚ EBSD ほᐹࢆᐇ᪋ࡋࡓ⤖ᯝ㸪100 Hz ࡛స

n /MPaࡿ㸬1000 Hz ࡟࣮ࣞࢨ࿘Ἴᩘࢆୖ᪼ࡉࡏࡓ࡜ࡇࢁ㸪ྠᵝ࡟ᒙ㛫࡟

1200
1000

Nominal stress,ほᐹࡉࢀࡓ㸬ࡇࢀࡀᶵᲔⓗᛶ㉁ࡢపୗࡢཎᅉ࡛࠶ࡿ࡜⪃࠼ࡽࢀ

800
600
Laser power: 300 W

4001000 Hz
500 Hz100 Hz

200
0
0

0.05

0.1

Nominal strain,

0.15

/-

0.2

〇ࡋࡓヨᩱࡢୖ㒊࡛ࡣ኱ࡁ࡞⤖ᬗ⢏ࡀほᐹࡉࢀࡓࡢ࡟ᑐࡋ㸪500㸪

Fig. 3. ࣮ࣞࢨ࿘Ἴᩘࢆኚ໬ࡉࡏ࡚స〇ࡋ

1000 Hz ࡛స〇ࡋࡓヨᩱࡢୖ㒊࡛ࡣ㔪≧ࡢᚤ⣽࡞⤌⧊ࡀほᐹࡉࢀࡓ Ti-6Al-4V ྜ㔠ࡢᘬᙇヨ㦂࡛ᚓࡓබ⛠ᛂࡓ㸬ࡑࡋ࡚ୗ㒊࡛ࡣ࡝ࡢヨᩱ࡟࠾࠸࡚ࡶ㔪≧⤌⧊ࡀᡂ㛗ࡋࡓࡼ࠺ຊ-බ⛠ࡦࡎࡳ᭤⥺㸬࡞ᙧ≧ࢆ࿊ࡋ࡚࠸ࡓ㸬100 Hz㸪1000 Hz ࡛స〇ࡋࡓヨᩱࡢୗ㒊࡛
ࡣ 500 Hz ࡟ẚ࡭࡚ᚤ⣽࡞⤌⧊ࡀほᐹࡉࢀࡓࡀ㸪ࡇࡽࡣ✵㝽ࡸᒙ㛫๤㞳࡟ࡼࡗ࡚ୗ㒊ᒙ࡬ࡢఏ⇕ࡀጉࡆࡽࢀࡓࡇ࡜
࡟ࡼࡿᙳ㡪࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬

3.2. ࣮ࣞࢨฟຊ࠾ࡼࡧ Duty ẚࡢኚ໬ࡀ Ti-6Al-4V ྜ㔠ࡢᶵᲔⓗᛶ㉁࡜ᚤ⣽⤌⧊࡟ཬࡰࡍᙳ㡪ᢞධ࢚ࢿࣝࢠ࣮ࢆ୍ᐃ࡟ࡋ࡚࣮ࣞࢨฟຊ࠾ࡼࡧ Duty ẚࢆኚ໬ࡉࡏ࡚స〇ࡋࡓヨᩱࡢᶵᲔⓗᛶ㉁ࢆㄪ࡭ࡓ⤖ᯝ㸪ረᛶࡦࡎࡳࡣ 500 W࣭30 %࡛స〇ࡋࡓヨᩱࡀ᭱ࡶ኱ࡁࡃ㸪216 W࣭70 %࡛స〇ࡋࡓヨᩱࡀ᭱ࡶᑠࡉ࠸⤖ᯝ࡜࡞ࡗࡓ㸬ࡲࡓᘬᙇᙉᗘ࡟㛵ࡋ࡚ࡣ 216 W࣭70 %ࡀ᭱ࡶ㧗ࡃ㸪500 W࣭30 %㸪150 W࣭100 %ࡢ㡰࡛పୗࡋࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪
3.1 ⠇࡯࡝ࡢ㢧ⴭ࡞㐪࠸ࡣぢࡽࢀࡎ㸪ᘬᙇᙉᗘࡣ 900-950 MPa ⛬ᗘ࡛࠶ࡗࡓ㸬◳ᗘヨ㦂ࡢ⤖ᯝ࡛ࡣ㸪CW ࣮ࣞࢨࢆ౑⏝ࡋࡓヨᩱࡀୖ㒊㸪୰㒊࡛ࡤࡽࡘࡁࡀᴟ➃࡟኱ࡁ࠿ࡗࡓ㸬㐀ᙧ᩿㠃ࡢほᐹࡢ⤖ᯝ㸪࡝ࡢ᮲௳࡛స〇ࡋࡓヨᩱ࡟࠾࠸࡚ࡶ᩿㠃࡟ᮍ⁐⼥⢊ᮎ࡜✵㝽ࡀᒙ㛫࡟ほᐹࡉࢀࡓࡀ㸪≉࡟ CW ࣮ࣞࢨ࡛ࡑࢀࡽࡢ㐀ᙧḞ㝗ࡢᏑᅾࡀ㢧ⴭ࡛࠶ࡾ㸪ࡇࢀࡽࡢ㐀ᙧḞ㝗ࡢᏑᅾࡀ◳ᗘ࡟ᙳ㡪ࢆཬࡰࡋ࡚࠸ࡓ㸬EBSD ほᐹࡢ⤖ᯝ࡛ࡣ㸪ࡍ࡭࡚ࡢ᮲௳࡛ୖ㒊࡟㔪≧ࡢ⤌⧊㸪ୗ㒊࡟ࡑࢀࡀᡂ㛗ࡋࡓࡼ࠺࡞ᙧ≧ࡀ☜ㄆ࡛ࡁ㸪CW ࣮ࣞࢨࢆ౑⏝ࡋࡓヨᩱࡢୗ㒊⤌⧊ࡀ᭱ࡶ኱ࡁ࡞⤌⧊࡜࡞ࡗ࡚࠸
ࡓ㸬ᮏ◊✲࡛ࡣᢞධ࢚ࢿࣝࢠ࣮ࢆ 150 W100%࡜ྠᵝ࡟࡞ࡿࡼ࠺࡟୍ᐃ࡜ࡋࡓࡀ㸪㧗ฟຊ࣭ప Duty ẚࡢ᫬࡟ࡣ෭
༷ࡢᙳ㡪ࡀ኱ࡁࡃ㸪ࡲࡓపฟຊ࣭㧗 Duty ẚࡢ᫬࡟ࡣ⢊ᮎࢆ⁐⼥ࡍࡿࡓࡵ࡟ࡣ༑ศ࡛ࡣ࡞࠸ฟຊ್࡛࠶ࡗࡓ࡜⪃࠼ࡽࢀࡿ㸦ࡓࡔࡋ⤌⧊ほᐹ⤖ᯝ࠿ࡽ㸪⤖ᬗ⢏ᡂ㛗ࢆᘬࡁ㉳ࡇࡍ࡟ࡣ༑ศ࡞⇕㔞࡛࠶ࡗࡓࡇ࡜ࡀุ᩿࡛ࡁࡿ㸧㸬ࡑࡢࡓࡵ㸪࣮ࣞࢨฟຊ࡜ Duty ẚࡢࣂࣛࣥࢫࡀ୰㛫ࡢ 216 W࣭70 %࡛㐀ᙧ᩿㠃ࡢ㐀ユḞ㝗ࡀ᭱ࡶᑡ࡞ࡃⰋዲ࡟࡞ࡾ㸪ࡑࡢࡓࡵᘬᙇᙉᗘࡀ᭱ࡶ㧗ࡃ࡞ࡗࡓ࡜᥎ ࡉࢀࡿ㸬
4. ⤖ㄽࣃࣝࢫ࣮ࣞࢨ⢊ᮎᗋ⁐⼥⤖ྜἲ㸦PL-PBF㸧࡟ࡼࡾస〇ࡋࡓ Ti-6Al-4V ྜ㔠ࡢᶵᲔⓗᛶ㉁࡜ᚤ⣽⤌⧊࡟ཬࡰࡍ࣮ࣞ
ࢨຍᕤ᮲௳ࡢᙳ㡪ࢆㄪᰝࡋ㸪௨ୗࡢ⤖ᯝࢆᚓࡓ㸬
㸦1㸧࣮ࣞࢨ࿘Ἴᩘኚ໬ࡢ⤖ᯝ࠿ࡽ㸪࣮ࣞࢨ࿘Ἴᩘ࡟ࡣ᭱㐺್ࡀ࠶ࡾ㸪㧗ࡍࡂ࡚ࡶపࡍࡂ࡚ࡶᮍ⁐⼥⢊ᮎࡸ✵㝽࡟ࡼࡿᒙ㛫๤㞳ࡀⓎ⏕ࡋᶵᲔⓗᛶ㉁࡟ᙳ㡪ࢆཬࡰࡍ㸬
㸦2㸧ᢞධ࢚ࢿࣝࢠ࣮ࢆ୍ᐃ࡜ࡋ㸪࣮ࣞࢨฟຊ࡜ Duty ẚࡢࣂࣛࣥࢫࢆኚ໬ࡉࡏࡓ㝿࡟ࡶྠᵝ࡞⤖ᯝࡀほᐹࡉࢀ㸪୰㛫ⓗ࡞್ࡢ⤌ࡳྜࢃࡏ࡟᭱㐺್ࡀ࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧− 53 −

࣮ࣞࢨຍᕤ࡟࠾ࡅࡿࣅ࣮࣒࡜ᮦᩱࡢ┦஫స⏝࡞ࡽࡧ࡟࣮ࣞࢨຍᕤ⌧㇟ࡢゎ᫂㸸⛣ື⇕※࡟ࡼࡿᮦᩱ⇕ศᕸ࡜ᛂຊศᕸ࡟㛵ࡍࡿ᭷㝈せ⣲ゎᯒṊⶶ㔝኱Ꮫ ᕤᏛ㒊 ᩘ⌮ᕤᏛ⛉㧗▼ Ṋྐ
 ┠ⓗ࣮ࣞࢨࢡࣛࢵࢹ࢕ࣥࢢࡣࠊ࣮ࣞࢨ࡟ࡼࡾ㔠ᒓࢆ▐᫬࡟ຍ⇕ࡋ⁐⼥ࡍࡿ⫗┒ࡾຍᕤ࡛࠶ࡾࠊ⇕ᙳ㡪ࢆཷࡅࡸࡍ࠸ẕᮦࡢ⾲㠃ຍᕤ࡞࡝ከࡃࡢศ㔝࡛ᛂ⏝ࡉࢀጞࡵ࡚࠸ࡿࠋࡋ࠿ࡋࠊ⫗┒ࡾࡉࢀࡓ㔠ᒓࡢ෭༷᫬࡟๭ࢀࡀⓎ⏕ࡍࡿࡇ࡜࡟ࡼࡾᙉᗘࢆⴭ
ࡋࡃపୗࡉࡏࡿሙྜࡀ࠶ࡾࠊࡑࡢཎᅉࡢ✲᫂࡜ᨵၿࡢࡓࡵ࡟⛣ື⇕※࡟ࡼࡿᮦᩱࡢ⇕ศᕸࡢゎ᫂ࡀᚲせ࡛࠶ࡿࠋ࣮ࣞࢨࢡ
ࣛࢵࢹ࢕ࣥࢢࡢ㝿࡟࠾ࡅࡿᮦᩱࡢ⇕ศᕸࡢ᫬㛫ኚ໬࡟㛵ࡋ࡚ࠊ⛣ື⇕※࡟ࡼࡿᮦᩱ࡬ࡢ⇕ὶ᮰ὶධ࡟ᑐࡋ࡚᭷㝈せ⣲ἲࢆ⏝࠸࡚ࣔࢹࣝ໬ࡋࠊゎᯒࡍࡿࡇ࡜࡛ࠊࡑࡢᶵᵓࢆ᳨ウࡍࡿࠋࡲࡓࠊ⇕ศᕸ࡟ࡼࡾ⏕ࡌࡿᮦᩱෆ㒊ࡢᛂຊศᕸ࡟ࡘ࠸࡚ࡶㄪ
࡭ࡿࡇ࡜࡛ࠊᮦᩱࡢኚᙧ࡟ᑐࡍࡿ▱ぢࢆᚓࡿࡇ࡜ࡀ࡛ࡁ࡞࠸࠿᳨ウࡍࡿࠋ ◊✲᪉ἲ⛣ື⇕※࡟ࡼࡿᮦᩱࡢ⇕ศᕸࡢゎ᫂ࡢࡓࡵ࡟ࠊḟࡢ◊✲ࢆ㐍ࡵ࡚࠸ࡃࠋ  ᐇ㦂࡟࠾ࡅࡿ≀ᛶࣃ࣓࣮ࣛࢱࢆ⢭ᰝࡋࠊ⛣ືࡍࡿ⇕ὶ᮰࡟ࡼࡿቃ⏺᮲௳࡛ࡢ᭷㝈せ⣲ἲࢆ⏝࠸ࡓࣔࢹࣝ໬ࢆ⾜࠺ࠋ)UHH)(0 ࢆ⏝࠸࡚ࣔࢹࣝ࡟ᑐࡍࡿᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜࠸ࠊࡑࡢ⤖ᯝ࡜⾲㠃⇕ศᕸࢆẚ㍑ࡍࡿࡇ࡜࡛෌⌧ᛶࢆホ౯ࡍࡿࠋ   ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡾ⇕࡟ࡼࡿෆ㒊ᛂຊศᕸࢆㄪ࡭ࡿࡇ࡜࡛ࠊ࣮ࣞࢨຍᕤ࡟ࡼࡿᮦᩱ㈇Ⲵ࡜ࠊࡑࡇ࠿ࡽኚᙧࡀ
࡝ࡢࡼ࠺࡟⏕ࡌࡿ࠿ࢆ᳨ウࡍࡿࠋ ຍ⇕࡟ࡼࡿᮦᩱ≀ᛶኚ໬࡞࡝ࡢࣔࢹࣝ໬ࢆヨࡳࠊࡼࡾ⌧ᐇ࡟㏆࠸ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜࠼࡞࠸࠿᳨ウࡍࡿࠋ ᖺᗘࡣࠊ⛣ືࡍࡿ⇕ὶ᮰ࡢὶධࢆࣔࢹࣝ໬ࡋࡓ  ḟඖཬࡧ  ḟඖࢩ࣑࣮ࣗࣞࢩࣙࣥࢥ࣮ࢻࡢసᡂ࡟╔ᡭࡋࠊ኱つᶍ࡞ィ⟬ࡢࡓࡵࡢ୪ิィ⟬࡬ࡢᣑᙇࢆ⾜ࡗࡓࠋᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡣつ᱁໬ࡋࡓ᪉⛬ᘧࢆ⏝࠸ࠊ)UHH)(0 ࢆ⏝࠸࡚᭷㝈せ⣲ἲ࡛ィ⟬ࢆ⾜ࡗࡓࠋᇶᮦࡢ⾲㠃ࢆ⇕※ࡀ⛣ືࡍࡿࡇ࡜࡛ὶධࡋࡓ⇕ὶ᮰ࡀࠊᶵᮦෆ㒊࡛࡝ࡢࡼ࠺࡞ศᕸࢆᣢࡘ࠿ㄪ࡭
ࡓࠋᮦᩱ࡟ᑐࡋ࡚⾲㠃࡟ᆶ┤࡛⇕※ࡢ⛣ື᪉ྥ࡟ᖹ⾜࡞᩿㠃࡛ࡢ  ḟඖࣔࢹࣝࡢゎᯒ࡜ࠊ ḟඖࣔࢹ࡛ࣝࡢゎᯒࢆ⾜ࡗࡓࠋᮦᩱෆࡢ⇕ఏᑟᗘࡣ୍ᵝ࡜ࡋࠊᮦᩱഃ㠃ࡣࣀ࢖࣐ࣥቃ⏺᮲௳ࢆタᐃࡋࠊᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓࠋ ḟඖᩘ್ࢩ࣑
࣮ࣗࣞࢩࣙࣥ࡟⏝࠸ࡓィ⟬㡿ᇦ࡜ቃ⏺᮲௳ࢆ )LJ࡟♧ࡍࠋ
)LJ ḟඖࣔࢹࣝ࡜ィ⟬㡿ᇦࠋᩘ್ィ⟬⤖ᯝ
ᇶᮦୖ㒊⾲㠃ࡀ࣮ࣞࢨ↷ᑕ࡟ࡼࡾຍ⇕ࡉࢀ࡚࠸ࡿ࡜௬ᐃࡋࠊࢡࣛࢵࢹ࢕ࣥࢢ㐣⛬࡜ྠᵝ࡟ศᕸࢆᣢࡗࡓ࣮ࣞࢨࢫ࣏ࢵࢺ

− 54 −

ࡀ➼㏿࡛⛣ືࡋ࡚࠸ࡿሙྜ࡟ࡘ࠸࡚ࠊᇶᮦෆࡢ ᗘศᕸࡢኚ໬ࢆㄪ࡭ࡓࠋᇶᮦෆ㒊ࡢ ᗘ‫ݑ‬ሺ‫ݐ‬ǡ ‫ݔ‬ሻ࡟ᑐࡋ࡚ࠊ࣮ࣞࢨࢫ࣏
ࢵࢺ࡟ࡼࡾୖ㒊ቃ⏺࠿ࡽὶධࡍࡿ⇕ὶ᮰ࢆ‫ݍ‬ሺ‫ݐ‬ǡ ‫ݔ‬ሻ࡜ࡋࠊィ⟬㡿ᇦࡢᗏ㠃ࡣᐊ 㸦ࡇࡇ࡛ࡣ‫ ݑ‬ൌ Ͳ㸧࡟ᅛᐃࡉࢀ࡚࠸ࡿࡶ
ࡢ࡜ࡋࠊഃ᪉ࡣ⮬⏤ቃ⏺࡜ࡋ࡚ ḟඖࣔࢹࣝࢆసᡂࡋࡓࠋࡲࡓࠊ᫬้‫ึࠊ࡚࠸࠾࡟ ݐ‬ᮇࡢ ᗘศᕸࡣᐊ ࡜➼ࡋࡃ୍ᵝ࡛࠶ࡿ࡜ࡋࡓࠋ㡿ᇦୖ㠃ሺ‫ ݕ‬ൌ ͳሻ࡟࠾ࡅࡿࢫ࣏ࢵࢺ⇕ὶ᮰ࡣḟࡢࡼ࠺࡟௬ᐃࡋࠊቃ⏺᮲௳࡜ࡋࡓࠋ


߲‫ݑ‬
మ మ
ሺ‫ݐ‬ǡ ‫ݔ‬ǡ ‫ ݕ‬ൌ ͳሻ ൌ ‫ݍ‬ሺ‫ݐ‬ǡ ‫ݔ‬ሻ ൌ ‫ݍ‬଴ ݁ ିሺ௫ି௩௧ሻ Ȁ௥     
߲‫ݕ‬

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ࡇࡇ࡛ࠊ‫ݎ‬ǡ ‫ݒ‬ǡ ‫ݍ‬଴ ࡣࡑࢀࡒࢀࢫ࣏ࢵࢺࡢᚄࠊ㏿ᗘࠊ⇕ὶ᮰ࡢ᭱኱್࡛࠶ࡿࠋ‫ ݎ‬ൌ ͳǡ ‫ ݒ‬ൌ ͳǡ ‫ݍ‬଴ ൌ ͲǤͳ࡜ࡋ࡚  ḟඖࣔࢹࣝࢆ⏝࠸࡚ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓ⤖ᯝࢆ )LJ ࡟♧ࡍࠋ᫬㛫࡜࡜ࡶ࡟࣮ࣞࢨࢫ࣏ࢵࢺᚋ᪉࡟ ᗘศᕸࡀᗈࡀࡿᵝᏊࡀ☜ㄆ࡛ࡁࡿ )LJ ᕥ ࠋࡲࡓࠊࢫ࣏ࢵࢺὶ㏿ࡢ⛣ື㏿ᗘࢆ‫ ݒ‬ൌ ͲǤͷǡͳǡʹǡ͵࡜ኚ໬ࡉࡏࡓሙྜ࡟࠾ࡅࡿୖ㒊୰ኸ௜㏆ ሺ‫ݔ‬ǡ ‫ݕ‬ሻ ൌ ሺͷǡͳ ࡢ ᗘࡢ᫬㛫ኚ໬࠿ࡽࠊ⛣ື㏿ᗘࡀ㐜࠸࡯࡝ࣆ࣮ࢡࡢ ᗘࡀ㧗ࡃ࡞ࡾࠊࡲࡓ㧗 ≧ែࢆ㛗᫬㛫⥔ᣢࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡿ )LJ ྑ ࠋྠᵝ࡟  ḟඖࣔࢹࣝࢆసᡂࡋ࡚ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ
⾜ࡗࡓ )LJ ࠋ)UHH)(0 ࡛ࡣᙅᙧᘧࡢ᪉⛬ᘧࢆグ㏙ࡍࡿࡇ࡜࡛᭷㝈せ⣲ἲ࡛ࡢᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆᐇ⾜࡛ࡁࡿࡀࠊࡉࡽ࡟ࠊせ⣲⾜ิࢆព㆑ࡋࡓ PDWUL[ ࢆ౑ࡗࡓ⾲グ࡟᭩ࡁ┤ࡍࡇ࡜࡛୪ิࢯࣝࣂ࣮ࡸ㡿ᇦศ๭࡟ࡼࡿ୪ิ໬ࡀྍ⬟࡜࡞ࡿࡼ࠺
࡟ࡋࡓࠋ
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)LJ ḟඖࣔࢹࣝ࡟ࡼࡿ⇕ศᕸࡢ᫬㛫ኚ໬ ᕥ ࡜ୖ㒊୰ኸ௜㏆࡛ࡢ ᗘኚ໬    )LJ ḟඖࣔࢹࣝ࡟ࡼࡿ⇕ศᕸ ⤖ㄽ࠾ࡼࡧ௒ᚋࡢᒎ㛤ᮏ◊✲࡛ࡣࠊ࣮ࣞࢨຍᕤࡢ㝿࡟Ⓨ⏕ࡍࡿᮦᩱࡢ⇕ศᕸࡢ᫬㛫ኚ໬࡟㛵ࡋ࡚ࠊ⛣ື⇕※࡟ࡼࡿᮦᩱ࡬ࡢ⇕ὶ᮰ὶධ࡟ᑐࡋ࡚᭷㝈せ⣲ἲࢆ⏝࠸࡚ࣔࢹࣝ໬ࡋࠊゎᯒࡍࡿࡇ࡜࡛ࠊ⇕ᛂຊ࡟ࡼࡿኚᙧ࡞࡝ࡢᶵᵓࢆ᳨ウࡋ࡚࠸ࡃࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ
 ᖺᗘࡣࠊ୍ᐃ㏿ᗘ࡛⛣ືࡍࡿ࣮ࣞࢨࢫ࣏ࢵࢺ࡟ࡼࡿᇶᮦ⾲㠃࠿ࡽࡢ⇕ὶ᮰ࡢὶධࢆᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࡍࡿࣔࢹࣝࢆ  ḟඖ᩿㠃࠾ࡼࡧ  ḟඖ࡟ࡘ࠸࡚సᡂࡋࠊ)UHH)(0ࢆ⏝࠸ࡓࢩ࣑࣮ࣗࣞࢩࣙࣥ࠿ࡽᇶᮦෆࡢ⇕ศᕸࡢ᫬㛫ኚ໬ࡀィ⟬࡛ࡁࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋࡲࡓࠊ௒ᚋ኱つᶍ࡞ᩘ್ィ⟬࡟ᣑᙇࡍࡿࡇ࡜ࢆ᝿ᐃࡋࠊ୪ิ໬ྍ⬟࡞ࢥ࣮ࢻࢆసᡂࡋࡓࠋ
௒ᚋࠊᐇ㝿ࡢᐇ㦂⤖ᯝ࡜ẚ㍑ࡋ࡚࠸ࡃࡓࡵ࡟ࡣࠊ⇕ὶ᮰ࡢධᑕ㔞ࡢぢ✚ࡶࡾࠊ┦ኚ໬ࡢᙳ㡪㸦₯⇕ࡢぢ✚ࡶࡾ࡜ࡑࡢᙳ
㡪ࠊ཯ᑕ⋡ࡢኚ໬ࠊ⇕ఏᑟ⋡ࡢኚ໬㸧ࠊ࣡࢖࣮ࣖ 㖡 ࠿ࡽᇶᮦ 686 ࡬ࡢ⇕ఏᑟࢆࣔࢹࣝ࡟཯ᫎࡉࡏࡿᚲせࡀ࠶ࡿࠋ≉࡟ࠊ࣮ࣞࢨࢡࣛࢵࢹ࢕ࣥࢢ࡟࠾࠸࡚ࡣࠊຍ⇕࡟ࡼࡾ⾲㠃࡟⁐⼥ᒙࡀ⏕ࡌࡿࡓࡵࠊ㧗 ࡢ⁐⼥ᒙࡢ✵㛫ศᕸ࡜ࡑࡢ ᗘࡀᇶᮦᒙࡢ ᗘศᕸࡢቃ⏺᮲௳࡜࡞ࡿࠋࡇࡢ⌧㇟ࢆㄪ࡭ࡿࡓࡵ࡟ࠊ⇕ὶ᮰ὶධ㠃࡟ⷧ࠸ࢡࣛࢵࢹ࢕ࣥࢢᒙࢆタࡅࠊ⾲㠃ᒙࡢ┦≧ែኚᩘࢆᑟධࡋࣔࢹࣝ໬ࡍࡿࡇ࡜࡛ࠊᅛయ࣭ᾮయ┦㌿⛣࡟ࡼࡿ྾཰⋡࣭⇕ఏᑟ⋡ࡢኚ໬ࢆ཯ᫎࡉࡏࡿࣔࢹࣝࢆ᳨ウࡋ࡚࠸ࡿࠋ ࡇࢀࡽࡢ ᗘศᕸࢆṇ☜࡟ᢕᥱࡍࡿࡇ࡜࡛ࠊᮦᩱ⾲㠃㏆ഐ࡛ࡢṧ␃ᛂຊࡢศᕸࢆぢ✚ࡶࡿࡇ࡜ࡀ࡛ࡁࠊᇶᮦࡢኚᙧ࡜◚ቯ࡟㛵ࡍࡿ▱ぢࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡿࠋ௒ᚋࠊᐇ㦂࡛ࢥࣥࢺ࣮࡛ࣟࣝࡁࡿࣃ࣓࣮ࣛࢱ࡜ࣔࢹࣝࡢࡍࡾྜࢃࡏࠊ⾲㠃 ᗘศᕸࡢᐇ㦂࡜ᑐẚࡍࡿࡇ࡜࡛ࠊᐇ㦂࡟࠾ࡅࡿᇶᮦࡢ ᗘୖ᪼࡜ኚᙧ◚ቯ࡟㛵ࡍࡿ࣓࢝ࢽࢬ࣒ࡢゎ᫂ࡀᮇᚅࡉࢀࡿࠋඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝 − 55 −

㟷Ⰽ༙ᑟయ࣮ࣞࢨ࣐ࣝࢳࣅ࣮࣒㔠ᒓሁ✚ἲ࡟ࡼࡿᢠ⳦ᛶࢆ௜୚ࡉࢀࡿ⣧㖡ࢥ࣮ࢸ࢕ࣥࢢ⓶⭷ࡢ㛤Ⓨᮾ໭኱Ꮫ ኱Ꮫ㝔ṑᏛ◊✲⛉ ṑᏛ࢖ࣀ࣮࣋ࢩ࢚ࣙࣥࣜࢰࣥࢭࣥࢱ࣮␗ศ㔝ඹ๰㒊㛛
㝞 㭉

㸯㸬┠ⓗ
࢖ࣥࣉࣛࣥࢺࢹࣂ࢖ࢫࡣయෆ࡟㛗ᮇ㛫␃⨨ࡉࢀࡿࡇ࡜ࡀከ࠸ࡓࡵࠊᖖ࡟ឤᰁࡢࣜࢫࢡࡀక࠸ࡲࡍࠋ≉࡟ᡭ⾡ᚋࡢឤᰁࡣ῝้࡞ྜే⑕ࢆᘬࡁ㉳ࡇࡋࠊᝈ⪅ࡢ೺ᗣ࡟㔜኱࡞ᙳ㡪ࢆཬࡰࡍྍ⬟ᛶࡀ࠶ࡾࡲࡍࠋឤᰁࣜࢫࢡࡢపῶࠊࢹࣂ࢖ࢫࡢᏳ
ᐃᛶྥୖࠊᝈ⪅ࡢ 42/㸦⏕άࡢ㉁㸧ྥୖࠊ་⒪ࢥࢫࢺࡢ๐ῶ࡞࡝ࡢࡓࡵࠊᢠ⳦ᛶࡢ࠶ࡿ࢖ࣥࣉࣛࣥࢺࢹࣂ࢖ࢫࡢ㛤Ⓨࡣ་⒪ศ㔝࡟࠾࠸࡚㠀ᖖ࡟㔜せ࡞ㄢ㢟࡜࡞ࡗ࡚࠸ࡲࡍࠋ࢖ࣥࣉࣛࣥࢺࢹࣂ࢖ࢫࡢ⾲㠃࡟ᢠ⳦ຠᯝࡢ࠶ࡿࢥ࣮ࢸ࢕ࣥࢢࢆ
᪋ࡍࡇ࡜ࡣࠊ᭱ࡶ୍⯡ⓗ࡞ᢠ⳦ຠᯝࡢᐇ⌧᪉ἲࡢ୍ࡘ࡛ࡍࠋࡑࡢ୰࡛ࡶࠊ㖡ࡣᢠ⳦ᛶࡀ㧗ࡃࠊయෆᇙࡵ㎸ࡳᆺࢹࣂ࢖ࢫ
ࡢ⾲㠃࡟ࢥ࣮ࢸ࢕ࣥࢢࡍࡿࡇ࡜࡛⣽⳦ࡢቑṪࢆᢚไ࡛ࡁࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࡓࡵࠊ㖡ࡢ⾲㠃ࢥ࣮ࢸ࢕ࣥࢢ࡟㛵ࡍࡿ◊✲ࡀ┒ࢇ࡟⾜ࢃࢀ࡚࠸ࡲࡍࠋ୍᪉ࠊ㏆ᖺࡢ་⒪ศ㔝࡛ࡣࠊྛᝈ⪅ࡢ㌟యࡸ⏕ά⎔ቃ࡟ྜࢃࡏࡓ་⒪ࢆᥦ౪ࡍࡿࢸ࣮࣮ࣛ
࣓࢖ࢻ་⒪࡟ὀ┠ࡀ㞟ࡲࡗ࡚࠸ࡲࡍࠋ౛࠼ࡤࠊேᕤ㛵⠇࡛ࡣࠊ᪤ᐃࡢࢧ࢖ࢬࣂ࢚࣮ࣜࢩࣙࣥ࠿ࡽ㐺ྜࡍࡿࡶࡢࢆ㑅ᢥࡋ࡚࠸ࡲࡍࠋṑ⛉࢖ࣥࣉࣛࣥࢺࡢࢸ࣮࣮࣓ࣛ࢖ࢻ໬࡛ࡣࠊྛᝈ⪅ࡢ㦵᱁࡟ྜࢃࡏࡓ࢖ࣥࣉࣛࣥࢺࢆᥦ౪ࡍࡿࡇ࡜ࡀ⌮᝿ⓗ࡛ࡍࠋࡑࡇ࡛ࠊ㔠ᒓ ' ✚ᒙ㐀ᙧᢏ⾡࡟ࡼࡿ་⒪⏝㔠ᒓᮦᩱࡢ㐀ᙧࡀᮇᚅࡉࢀ࡚࠸ࡲࡍࠋࡋ࠿ࡋࠊ㖡ࡢ࣮ࣞࢨග྾཰⋡ࡣἼ㛗࡟ࡼࡗ࡚␗࡞ࡾࠊ୍⯡ⓗ࡟ྍどගࡸ㉥እ⥺ࡢ࣮ࣞࢨග࡟ᑐࡋ࡚ࡣప࠸ࡓ
ࡵࠊ༑ศ࡞࢚ࢿࣝࢠ࣮ࡀᮦᩱ࡟྾཰ࡉࢀࡎࠊຠ⋡ⓗ࡞⁐⼥ࡀᅔ㞴࡟࡞ࡿࡇ࡜ࡀ
࠶ࡾࡲࡍࠋᮏඹྠ◊✲ㄢ㢟࡛ࡣࠊ࢜ࣜࢪࢼࣜࢸ࢕ࡢ㧗࠸㟷Ⰽ༙ᑟయ࣮ࣞࢨ࣐ࣝ
ࢳࣅ࣮࣒㔠ᒓሁ✚ἲ࡟ࡼࡗ࡚ࠊḟୡ௦ྥࡅ࢖ࣥࣉࣛࣥࢺ⾲㠃ฎ⌮ࡢ㛤Ⓨࠊཬࡧឤᰁண㜵ࡀྍ⬟࡞ຠᯝⓗ࡞⾲㠃ฎ⌮ࡢ㛤Ⓨࢆ┠ⓗ࡜ࡋ࡚࠸ࡲࡍࠋ
㸬◊✲᪉ἲ
ā 㟷Ⰽ༙ᑟయ࣮ࣞࢨ↷ᑕຍᕤ࡟ࡼࡿ 686 ⾲㠃࡬ࡢ⣧㖡ࢥ࣮ࢸ࢕ࣥࢢ⓶⭷ࡢస〇་⒪ศ㔝ࡸ⏕యᮦᩱ࡜ࡋ࡚ᗈࡃ౑⏝ࡉࢀ࡚࠸ࡿ࣮࢜ࢫࢸࢼ࢖ࢺ⣔ࢫࢸࣥࣞࢫ
㗰 686 ࢆᇶᯈᮦᩱ࡜ࡋ࡚౑⏝ࡋࡲࡋࡓࠋ686 ⾲㠃࡬ࡢ⣧㖡ࢥ࣮ࢸ࢕ࣥࢢ
⓶⭷ᙧᡂࡢࡓࡵ࡟౑⏝ࡋࡓ㟷Ⰽ༙ᑟయ࣮ࣞࢨࡢฟຊࠊࢫ࣏ࢵࢺᚄ㸦):+0㸧࠾ࡼࡧ࣮ࣞࢨࣃ࣮࣡ᐦᗘࡣࠊࡑࢀࡒࢀ :ࠊȣPࠊ࠾ࡼࡧ :FPt࡛ࡍࠋ౑⏝ࡉࢀࡓ㖡⢊ᮎࡢᖹᆒ⢏ᚄ࠾ࡼࡧ౪⤥㔞ࡣ⣙ P ࡜ PJV ࡛ࡍࠋ⾲㠃ฎ⌮ࡋ࡚࠸࡞࠸ࢫࢸࣥࣞࢫ㗰 686㸦686㸧࡜㖡ᯈ㸦&X㸧࡜⣧ࢳࢱࣥᯈ㸦&37L㸧ࡣࢥࣥࢺ࣮ࣟࣝヨᩱ࡜ࡋ࡚ホ౯ࡋࡲࡋࡓࠋ
āࢧࣥࣉࣝࡢᢠ⳦ホ౯㟷Ⰽ༙ᑟయ࣮ࣞࢨ↷ᑕ࡟ࡼࡿ⣧㖡ࢥ࣮ࢸ࢕ࣥࢢ⓶⭷ࢆᙧᡂࡋࡓ 686 ヨᩱ
㸦/&&X㸧࡜ࢥࣥࢺ࣮ࣟࣝヨᩱ㸦686ࠊ&Xࠊ&37L㸧ࢆ⏝࠸࡚ᢠ⳦ヨ㦂ࢆ⾜࠸ࡲᅗ㸯 ⳦᳨ฟ㸸 ᫬㛫ᇵ㣴ᚋࠊࢩ࣮ࣕࣞ
ࡢ෗┿ࠋࡋࡓࠋ-,6= ࡟‽ᣐࡋࠊ኱⭠⳦㸦(VFKHULFKLDFROLࢢ࣒ࣛ㝜ᛶᱰ⳦㸧࡜㯤Ⰽࣈࢻ࢘⌫⳦㸦6WDSK\ORFRFFXVDXUHXVࢢࣛ− 56 −

࣒㝧ᛶ⌫⳦㸧ࡢ  ᫬㛫ᚋࡢቑṪࢆࣇ࢕࣒ࣝᐦ╔ἲ࡟ࡼࡾホ౯ࡋࡲࡋࡓࠋᐮኳᇵᆅ࡛  ᫬㛫ᇵ㣴ࡋࡓᚋࠊ⳦ࡢࢥࣟࢽ࣮
ᩘࢆ࢝࢘ࣥࢺࡋࠊྛヨᩱࡢᢠ⳦ホ౯ࢆ⾜࠸ࡲࡋࡓࠋ
㸱㸬◊✲⤖ᯝ ᫬㛫ᇵ㣴ᚋࡢᐮኳᇵᆅ⾲㠃࡟ᙧᡂࡉࢀࡓ⳦ࢥࣟࢽ࣮ࡢほᐹ⤖ᯝࡀ♧ࡉࢀࡲࡋࡓ㸦ᅗ㸯㸧ࠋ686 ࡜ &37L ࡜ẚ㍑ࡍࡿ
࡜ࠊ⣧㖡ࢥ࣮ࢸ࢕ࣥࢢ⓶⭷㸦&/&X㸧࡜ &X ⾲㠃࡛ᇵ㣴ࡋࡓ⳦ࡢࢥࣟࢽ࣮ᩘࡣᑡ࡞࠸ࡇ࡜ࡀ☜ㄆࡉࢀࡲࡋࡓࠋࡇࡢ⤖ᯝ࠿ࡽࠊ㟷Ⰽ༙ᑟయ࣮ࣞࢨ࣐ࣝࢳࣅ࣮࣒㔠ᒓሁ✚ἲ࡟ࡼࡗ࡚స〇ࡉࢀࡓ⣧㖡ࢥ࣮ࢸ࢕ࣥࢢࡀẅ⳦ຠᯝࢆᣢࡘࡇ࡜ࡀ᫂ࡽ࠿
࡟࡞ࡾࡲࡋࡓࠋᅗ 㸬⳦ࡢࢥࣟࢽ࣮ィᩘࡲࡓࠊᅗ㸰࠿ࡽᚓࡽࢀࡓᐃ㔞ศᯒ⤖ᯝ࡟ࡼࡾࠊ⣧㖡ࢥ࣮ࢸ࢕ࣥࢢ⓶⭷㸦&/&X㸧࡜⣧㖡ᯈ㸦&X㸧⾲㠃ୖ࡛ࡢ⳦ࢥࣟࢽ
࣮ᩘ࡟ࡣ᭷ព࡞ᕪࡀぢࡽࢀࡎࠊ686 ࠾ࡼࡧ &37L ࡜ẚ㍑ࡋ࡚ࡶᑡ࡞࠸⤖ᯝࡀ♧ࡉࢀࡲࡋࡓࠋࡇࡢ⤖ᯝ࠿ࡽࠊ㟷Ⰽ༙ᑟయ࣮ࣞࢨ↷ᑕ࡟ࡼࡗ࡚స〇ࡉࢀࡓ⣧㖡ࢥ࣮ࢸ࢕ࣥࢢ⓶⭷ࡀࠊ⣧㖡㸦&X㸧࡜ྠ➼࡟㧗࠸ᢠ⳦ຠᯝࢆ♧ࡍࡇ࡜ࡀ᫂ࡽ࠿࡟࡞
ࡾࡲࡋࡓࠋ㸲㸬⤖ㄽᮏ◊✲࡛ࡣࠊ㟷Ⰽ༙ᑟయ࣮ࣞࢨ࣐ࣝࢳࣅ࣮࣒㔠ᒓሁ✚ἲࢆ⏝࠸࡚ࠊᇶᯈᮦᩱࡢ⾲㠃ฎ⌮ᢏ⾡ࢆ㛤Ⓨࡋࡲࡋࡓࠋࡇࡢᢏ
⾡ࡣ㧗ຠ⋡࠿ࡘ㧗⢭ᗘ࡛ឤᰁண㜵ࡀ࡛ࡁࡿ⾲㠃ࢥ࣮ࢸ࢕ࣥࢢࡢ๰ᡂࢆ┠ᣦࡋ࡚࠸ࡲࡍࠋලయⓗ࡟ࡣࠊ㟷Ⰽ༙ᑟయ࣮ࣞࢨ
ࢆ౑⏝ࡋ࡚ࢫࢸࣥࣞࢫ㗰 686 ࡢ⾲㠃࡟⣧㖡ࢥ࣮ࢸ࢕ࣥࢢ⓶⭷ࢆ㛤Ⓨࡋࡲࡋࡓࠋᐇ㦂⤖ᯝ࠿ࡽࠊ㖡ࢥ࣮ࢸ࢕ࣥࢢࡀ኱
⭠⳦࡜㯤Ⰽࣈࢻ࢘⌫⳦ࡢẅ⳦ຠᯝࢆ᭷ࡍࡿࡇ࡜ࡀ☜ㄆࡉࢀࡲࡋࡓࠋ௒ᚋࡣࠊࡉࡽ࡟ࣉࣟࢭࢫࡢ᭱㐺໬ࢆ⾜࠸ࠊᝈ⪅ࡀᏳᚰࡋ࡚౑⏝࡛ࡁࡿḟୡ௦ࡢ࢖ࣥࣉࣛࣥࢺᮦࡢ⾲㠃ฎ⌮࡟㈉⊩ࡍࡿࡇ࡜ࡀᮇᚅࡉࢀࡲࡍࠋ
㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧− 57 −

㟷Ⰽ༙ᑟయ࣮ࣞࢨࢆ⏝࠸ࡓ⢊ᮎᗋ⁐⼥⤖ྜἲ࡟ࡼࡿ
 7L ࡢ ' 㐀ᙧ࡟㛵ࡍࡿᇶ♏ⓗ◊✲㏆␥኱Ꮫ ⌮ᕤᏛ㒊 㟁Ẽ㟁ᏊᕤᏛ⛉ ࢚ࣞࢡࢺࣟࢽࢡࢫ᝟ሗ࣭㏻ಙࢥ࣮ࢫ ୰㔝ேᚿ࣭๓⏣ ᜏ㍤
 ┠ⓗ࣮ࣞࢨ⢊ᮎᗋ⁐⼥⤖ྜἲ㸦/3%)/DVHU3RZGHU%HG)XVLRQ㸧ࡣ┬࢚ࢿࣝࢠ࣮࠿ࡘ┬㈨※࡞ࣉࣟࢭࢫ࡟᭷⏝࡞ᢏ⾡࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿ㸬/3%) ἲࡣ࣮ࣞࢨࢆ↷ᑕࡋ㔠ᒓ⢊ᮎࢆ⁐⼥࣭จᅛࡋ୍࡚ᒙẖ࡟  ḟඖᙧ≧ࢆసࡾࡇࢀࢆ⧞ࡾ㏉ࡋ✚ࡳୖࡆ࡚  ḟඖᙧ≧ࢆ㐀ᙧࡍࡿࡑࡢࡓࡵᚑ᮶ࡢษ๐ຍᕤረᛶຍᕤ㗪㐀ຍᕤ࡛ࡣ〇㐀
࡛ࡁ࡞࠸」㞧ᙧ≧ࢆ㐀ᙧ࡛ࡁࡿࡋ࠿ࡋ࡞ࡀࡽ/3%) ࡛㐀ᙧࡋࡓࢧࣥࣉࣝࡣ㗪㐀ࡸษ๐ຍᕤࢆ⾜࡞ࡗࡓ〇ရ࡜ẚ㍑ࡋ࡚㐀ᙧ≀ࡢ⢭ᗘࡸᐦᗘࡀపࡃᶵᲔⓗ≉ᛶࡀຎࡿࡋ࠿ࡶ㔠ᒓࡢ⁐᥋࣭จᅛᒙࢆ✚ᒙࡋ࡚࠸ࡃࡓࡵ⇕ṍࡳࡀ኱ࡁ࠸ࡇࡢṍࡳࡣᑍἲ⢭ᗘࡸ㐀ᙧ≀ࡢရ㉁࡟┤᥋ᙳ㡪ࡀ⏕ࡌ౛࠼ࡤ㔠ᆺ࡞࡝ࢆ㐀ᙧࡋࡓሙྜ࡟ࡣࡇ
ࢀࡀ⮴࿨ⓗ࡜࡞ࡿᚑ᮶ /3%) ἲ࡟ࡣ㏆㉥እ⥺ࣇ࢓࢖ࣂ ,5 ࣮ࣞࢨࡀ⏝࠸ࡽࢀ࡚ࡁࡓࡀ㏆㉥እ⥺Ἴ㛗࡛ࡣ㔠ᒓࡢග྾཰⋡ࡀప࠸ࡓࡵ㐀ᙧຠ⋡ࡀప࠿ࡗࡓ㔠ᒓࡢග྾཰⋡ࡣἼ㛗ࡀ㛗ࡃ࡞ࡿ࡟ᚑࡗ࡚㧗ࡃ࡞ࡿࡑࡇ࡛Ἴ㛗ࡀ QP ࡢ㟷Ⰽ༙ᑟయ࣮ࣞࢨ࡟╔┠ࡋࡓ㟷Ⰽ༙ᑟయ࣮ࣞࢨࡣ㔠ᒓ࡟ᑐࡋ࡚ග྾཰⋡ࡀ㧗ࡃග㟁Ẽኚ᥮ຠ⋡ࡶ㧗࠸ࡑࡢࡓࡵ㟷Ⰽ༙ᑟయ࣮ࣞࢨࢆ⏝࠸ࡓ /3%) ࡀᐇ⿦ࡉࢀࢀࡤ㧗ຠ⋡࠿ࡘ┬㈨※࡞ࡶࡢ࡙ࡃࡾࡀᮇᚅ
࡛ࡁࡿࡑࡇ࡛ᮏ◊✲࡛ࡣ་⒪⏝࢖ࣥࣉࣛࣥࢺࡸࢱ࣮ࣅࣥ࡟⏝࠸ࡽࢀ࡚࠸ࡿ 7L$O9 7L ࡟ᑐࡋ㟷Ⰽ༙ᑟయࣞ
࣮ࢨࢆ⏝࠸࡚✚ᒙ㐀ᙧࢆヨࡳᶵᲔⓗ≉ᛶࢆホ౯ࡋࡓ
 ᐇ㦂᪉ἲ㟷Ⰽ༙ᑟయ࣮ࣞࢨᦚ㍕ /3%) ⿦⨨ࡢᐇ㦂⿦⨨ࡢᴫ␎ᅗࢆ )LJ  ࡟♧ࡍ ࣮ࣞࢨࡣ᭱኱ฟຊ  :Ἴ㛗 QP ࡢ㟷Ⰽ༙ᑟయ࣮ࣞࢨࢆ⏝࠸࣮ࣞࢨගࢆ࢞ࣝࣂࣀࢫ࢟ࣕࢼ࡟ගࣇ࢓࢖ࣂ࡟ࡼࡗ࡚ᑟගࡋࢫ࣏ࢵࢺᚄ P ࡟࡞ࡿࡼ࠺࡟ㄪ⠇ࡋࡓᐇ㦂ᮦᩱ࡟ ⢏ᚄ aP ࡢ 7L ⢊ᮎ࡜PP ཌࡢࢫࢸࣥࣞࢫ㗰 686 ᇶᯈࢆ⏝࠸)LJ ࡟♧ࡍࡼ࠺࡟/3%) ⿦⨨ෆࡢࣜࢥ࣮ࢱ࣮ࢆ౑⏝ࡋ࡚⢊ᮎࢫࢸ࣮ࢪ࠿ࡽ 7L ⢊ᮎࢆᘬࡁヨᩱࢫࢸ࣮ࢪ࡟タ⨨ࡋࡓ 686 ᇶᯈୖ࡟  P  ᒙศ ࡢ㧗ࡉ࡟ᩜࡁワࡵࣁࢵࢳࣥࢢᖜ  P ࡛࣮ࣞࢨගࢆ↷ᑕࡋࡓࡇࡢࣉࣟࢭࢫࢆ୍ᒙẖ࡟⧞ࡾ㏉ࡋᶓ PP ⦪ PP 㧗ࡉ PP ࡢ 7L ࡢ  ᒙ ' 㐀ᙧ≀ࢆస〇ࡋࡓᐇ㦂᮲௳࡜ࡋ࡚࣮ࣞࢨࡢฟຊࢆ : ࡛ᅛᐃࡋᤲᘬ㏿ᗘࢆ PPV ࡟ኚ໬ࡉࡏ࡚㐀ᙧࢆ⾜࡞ࡗࡓ㓟໬㜵Ṇࡢࡓࡵ⿦⨨ෆࡢ㓟⣲⃰ᗘࡀ  ᮍ‶࡜࡞ࡿࡲ࡛࢔ࣝࢦࣥ $U ࢞ࢫ࡛඘‶ࡉࡏࢩ࣮ࣝࢻ⏝࡟ࡶ $U
࢞ࢫࢆヨᩱࢫࢸ࣮ࢪୖ࡟  /PLQ ࡛ࣇ࣮ࣟࡉࡏࡓ㐀ᙧ≀ࢆస〇ࡋࡓᚋ࡟ᶵᲔⓗ≉ᛶホ౯࡜ࡋ࡚ࢧࣥࣉࣝࡢ
⾲㠃⢒ࡉ࠾ࡼࡧ┦ᑐᐦᗘࢆ ᐃࡋࡓࡲࡓ㐀ᙧຠ⋡ࡢᣦᶆ࡜ࡋ࡚༢఩య✚ᙜࡓࡾࡢ㐀ᙧ࡟ᚲせ࡞ᢞධ⇕㔞ࢆ♧ࡍయ✚࢚ࢿࣝࢠ࣮ᐦᗘ ( -PP ࢆ⏝࠸ࡓయ✚࢚ࢿࣝࢠ࣮ᐦᗘ ( -PP ࡣᘧ  ࡟♧ࡍࡼ࠺࡟࣮ࣞࢨࡢฟ
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− 58 − ᐇ㦂⤖ᯝ࣮ࣞࢨࡢᤲᘬ㏿ᗘࢆ PPV ࡟ኚ࠼࡚స〇ࡋࡓࢧࣥࣉࣝࡢయ✚࢚ࢿࣝࢠ࣮ᐦᗘ࡜ࠊࡇࢀ࡟ᑐࡍࡿ
⾲㠃⢒ࡉ࡜┦ᑐᐦᗘࡢኚ໬ࢆࡑࢀࡒࢀ )LJ)LJ ࡟♧ࡍ⾲㠃⢒ࡉ࡟ࡘ࠸࡚)LJ ࡼࡾ࣮ࣞࢨࡢᤲᘬ㏿ᗘࡀ  PPV ࡛య✚࢚ࢿࣝࢠ࣮ᐦᗘࡀ  -PP ࡢ࡜ࡁ᭱ᑠ
ࡢ⾲㠃⢒ࡉ  P ࢆᚓࡓ୍᪉ᤲᘬ㏿ᗘࡀ  PPV ࡛య✚࢚ࢿࣝࢠ࣮ᐦᗘࡀ  PPV ࡢ࡜ࡁ᭱኱ࡢ⾲㠃⢒ࡉ  P ࢆᚓࡓࡋࡓࡀࡗ࡚࣮ࣞࢨࡢᤲᘬ㏿ᗘࡀῶᑡࡍࡿࡇ࡜࡛య✚࢚ࢿࣝࢠ࣮ᐦᗘࡀቑ኱ࡍࡿ࡜⾲㠃⢒ࡉࡀ኱ࡁࡃ࡞ࡿഴྥ࡟࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓ
)LJ ࡢ┦ᑐᐦᗘ࡟㛵ࡋ࡚ࡣ࣮ࣞࢨࡢᤲᘬ㏿ᗘࡀ  PPV ࡛య✚࢚ࢿࣝࢠ࣮ᐦᗘࡀ  -PP ࡢ࡜ࡁ᭱኱
ࡢ┦ᑐᐦᗘ  ࢆᚓࡓᤲᘬ㏿ᗘࡀ  PPV ࡛య✚࢚ࢿࣝࢠ࣮ᐦᗘࡀ  PPV ࡢ࡜ࡁ࡟࠾࠸࡚ࡣ᭱ᑠࡢ
┦ᑐᐦᗘ ࢆᚓࡓࡇࡢࡇ࡜࠿ࡽయ✚࢚ࢿࣝࢠ࣮ᐦᗘࡀቑ኱ࡍࡿ࡜┦ᑐᐦᗘࡀῶᑡࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓ
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(QHUJ\GHQVLW\ -PP)LJ6XUIDFHURXJKQHVVRIIDEULFDWLRQ)LJ5HODWLYHGHQVLW\RIIDEULFDWLRQࡲࡓඛ⾜◊✲  ࡛ࡣ㏆㉥እ⥺ࣇ࢓࢖ࣂ ,5 ࣮ࣞࢨࢆ⏝࠸࡚స〇ࡉࢀࡓ┦ᑐᐦᗘ ࡢヨᩱࡀయ✚࢚ࢿࣝࢠ࣮ᐦᗘ  -PP ࡛㐀ᙧࡉࢀ࡚࠸ࡿࡇࢀ࡟ᑐࡋᮏ◊✲࡟࠾࠸࡚ࡣ㟷Ⰽ༙ᑟయ࣮ࣞࢨࢆ⏝࠸࡚స〇ࡉࢀࡓ┦ᑐᐦᗘ  ࡢヨᩱࡣయ✚࢚ࢿࣝࢠ࣮ᐦᗘ  -PP ࡛㐀ᙧࡉࢀ࡚࠾ࡾ⣙  ప࠸య✚࢚ࢿࣝࢠ࣮ᐦᗘ࡛㐀ᙧࡀ⾜࠼ࡓ
 ⤖ㄽ
ᮏ◊✲࡛ࡣ7L ⢊ᮎࢆᮦᩱ࡜ࡋ࡚㟷Ⰽ༙ᑟయ࣮ࣞࢨࢆ⏝࠸ࡓ ' 㐀ᙧࢆ⾜࡞࠸య✚࢚ࢿࣝࢠ࣮ᐦᗘ࡜⾲㠃⢒ࡉ࠾ࡼࡧ┦ᑐᐦᗘࡢ㛵ಀࢆㄪ࡭ࡓࡑࡢ⤖ᯝయ✚࢚ࢿࣝࢠ࣮ᐦᗘࡀቑ኱ࡍࡿ࡜⾲㠃⢒ࡉࡣ኱ࡁࡃ࡞ࡾ┦ᑐᐦᗘࡣపୗࡋࡓࡲࡓࠊ㟷Ⰽ༙ᑟయ࣮ࣞࢨࢆ⏝࠸ࡓ 6/0 ࡟ࡼࡿ 7L ࡢ ' 㐀ᙧࡣ,5 ࣮ࣞࢨ࡟ࡼࡿ ' 㐀ᙧ
࡜ẚ㍑ࡋ࡚య✚࢚ࢿࣝࢠ࣮ᐦᗘࡀࡼࡾప࠸≧ែ࡛㐀ᙧࡀ࡛ࡁࠊࡼࡾ㧗ຠ⋡࡞㐀ᙧࡀ࡛ࡁࡿྍ⬟ᛶࡀ♧၀ࡉࢀࡓ ཧ⪃ᩥ⊩   3DO6*XEHOMDN1+XGDN5/RMHQ*5DMWXNRYD93UHGDQ-.RNRO9 'UVWYHQVHN,³7HQVLOH
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ඹྠ◊✲ศ㔝㸸࣮ࣞࢨ࣮ࣉࣟࢭࢫᏛศ㔝 − 59 −

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ᶫ⏣ᫀᶞ

ࡣࡌࡵ࡟
▷ࣃࣝࢫ࣮ࣞࢨ↷ᑕࢆᮦᩱ⾲㠃࡟ᅇᢡ㝈⏺௨ୗࡢ኱ࡁࡉࡢᚤ⣽ᵓ㐀ࡀᙧᡂࡉࢀ࡚ヰ㢟ࢆ࿧ࢇ࡛࠸
ࡿࠋሗ࿌࡛ࡣࠊ࿘ᮇⓗ࡞ᚤ⣽ᵓ㐀ࡢ኱ࡁࡉࡣ࣮ࣞࢨἼ㛗ࡢ   㹼  ࢩࣜࢥࣥࡢཧ⪃ᩥ⊩ ࡲ࡛ᚤᑠ໬ࡋ࡚࠸ࡿࠋᚤ⣽ᵓ㐀ࡢ୰࡛ࡶᡃࠎࡣࠊࢻࢵࢺ≧ࡢᙧ≧࡟╔┠ࡋ࡚࠸ࡿࠋ࣮ࣞࢨㄏ㉳ࢼࣀࢻࢵࢺᵓ㐀ᙧᡂ࡟ࡘ࠸࡚ࡣࠊࢼࣀ⛊࣮ࣞࢨࢆ⏝࠸࡚ࢤ࣐ࣝࢽ࣒࢘  ࡸࢩࣜࢥࣥ  ࡜࠸ࡗࡓ༙ᑟయᮦ
ᩱ࡟ᑐࡋ࡚◊✲ሗ࿌ࡀࡉࢀ࡚࠸ࡿࠋࡇࢀࡽࡢሗ࿌࡟ࡼࡿ࡜ࠊࢤ࣐ࣝࢽ࣒࡛࢘ࡣ࠾ࡼࡑ  QP ࡢ኱ࡁࡉࠊࢩࣜࢥ࡛ࣥࡣ 㹼 QP ࡢ኱ࡁࡉࡢࢼࣀࢻࢵࢺᵓ㐀ࡀᙧᡂࡉࢀ࡚࠸ࡓࠋࡋ࠿ࡋࠊ㔠ᒓࡢࢼࣀ⛊࣮ࣞࢨ↷ᑕ࡟ࡼࡿࢼࣀࢻࢵࢺᵓ㐀ᙧᡂࡢሗ࿌౛ࡣࠊࢃࡎ࠿  ࡛࠶ࡾ༑ศ࡞◊✲ࡀ࡞ࡉࢀ࡚࠸࡞
࠸ࠋࡇࢀࡽࢆ⫼ᬒ࡟ᡃࠎࡣࠊࢳࢱࣥ⾲㠃࡟ࢼࣀ⛊࣮ࣞࢨ↷ᑕ࡟ࡼࡾࢼࣀࢻࢵࢺᵓ㐀ࢆᙧᡂࡍࡿᇶ♏
◊✲ࢆ⾜ࡗ࡚ࡁࡓࠋࡇࢀࡲ࡛࡟ࠊ✵Ẽ୰ཬࡧỈ୰࡟࠾ࡅࡿࢳࢱࣥࡢ⼥ゎ㜈್㸦✵Ẽ㸸)WK -FPࠊỈ୰㸸)WK   -FP㸧ࢆồࡵࠊ୍ḟඖ⇕ᣑᩓࣔࢹࣝ  ࡟ࡼࡾຍᕤῶᑡ㐣⛬ࢆ᫂ࡽ࠿  ࡟ࡋ࡚ࡁࡓࠋᮏ◊✲࡛ࡣ⼥ゎ㜈್௨ୗࡢ࣮ࣞࢨࣇ࢚ࣝࣥࢫ᮲௳ୗ࡛ࠊࢳࢱࣥ⾲㠃࡟ᙧᡂࡉࢀࡿࢼࣀࢻࢵࢺᵓ
㐀ࡢᩘᐦᗘ࡜㧗ࡉࢆ᥎ᐹࡋࡓࡢ࡛ヲ⣽ࢆሗ࿌ࡍࡿࠋ
ᐇ㦂ᐇ㦂࡛ࡣ 1G<$* ࣮ࣞࢨ࠿ࡽⓎ᣺ࡋࡓࢼࣀ⛊ࣃࣝࢫ㸦➨஧㧗ㄪἼQPࠊࣃࣝࢫᖜQVࠊ⧞ࡾ㏉
ࡋ࿘Ἴᩘ+]㸧ࢆࠊࢩࣜࣥࢻࣜ࢝ࣝࣞࣥࢬ㸦I PP㸧ࢆ⏝࠸࡚ࢳࢱࣥ⾲㠃࡟ධᑕゅᗘ r࡛㞟ග↷ᑕࡋࡓࠋ↷ᑕ఩⨨࡛ࡢࣅ࣮࣒ᚄ ):H0 ࡣỈᖹ᪉ྥ  PPࠊᆶ┤᪉ྥ s PP ࡢ▴ᙧ࡛࠶ࡗࡓࠋ࣮ࣞࢨ࢚ࢿࣝࢠ࣮ࡣ P-࠿ࡽ  P- ࡟ኚ໬ࡉࡏࠊ࣮ࣞࢨࣇ࢚ࣝࣥࢫࡣ )  -FP࠿ࡽ-FP ࡟ไᚚࡋࡓࠋࡓࡔࡋࠊᐇ㦂࡛ࡣ⼥ゎ㜈್௨ୗࡢࣇ࢚ࣝࣥࢫࡢ⠊ᅖࢆ୰ᚰ࡟↷ᑕࢆ⾜ࡗࡓࠋ↷ᑕࣃࣝࢫᩘ 1 ࡣࠊ1㸻 ࣃࣝࢫ࡜࡞ࡿࡼ࠺࡟ࢳࢱࣥࢆỈᖹ᪉ྥ࡟㏿ᗘ 
PPV ࡛ᤲᘬࡋࡓࠋ࣮ࣞࢨ↷ᑕࡋࡓࢳࢱࣥ⾲㠃ࡣࠊ)(6(0 -(2/-60 ࡟ࡼࡾほᐹࡋࡓࠋᅗ  D  E ࡣࡑࢀࡒࢀᮍ↷ᑕ࠾ࡼࡧỈ୰࡟࠾ࡅࡿ⼥ゎ㜈್௨ୗࡢ࣮ࣞࢨࣇ࢚ࣝࣥࢫ Ỉ୰㸸 ) )WK ࡛↷ᑕࡋࡓሙྜࡢࢳࢱࣥࡢ )(6(0 ほᐹീࢆ♧ࡍࠋᙧᡂࡉࢀࡓࢼࣀࢻࢵࢺᩘࡣࠊ ಶࠊᩘᐦᗘࡣ  ಶPP ࡛࠶ࡗࡓࠋࢼࣀࢻࢵࢺࡢ኱ࡁࡉࡣࠊ㛗㍈⣙ QPࠊ▷㍈⣙ QP ࡛࠶ࡗࡓࠋㅮ₇࡛ヲ⣽ࢆ♧ࡍࡀࠊ཯ᑕ⋡ィ ࡢ⤖ᯝ࠿ࡽࠊ⣙ QP ࡢ㧗ࡉࡢᵓ㐀ࡀ࡛ࡁ࡚࠸ࡿ࡜᥎ᐹࡋࡓࠋ
− 60 −

DEᅗ 㸸ࢳࢱࣥ⾲㠃ࡢ 6(0 ほᐹീ㸦D㸧ᮍ↷ᑕ E ⼥ゎ㜈್ࣇ࢚ࣝࣥࢫ௨ୗࡢ࣮ࣞࢨ↷ᑕ࡛ᙧᡂࡉ
ࢀࡓࢼࣀࢻࢵࢺᵓ㐀 Ỉ୰㸸) )WK1㸻 ࣃࣝࢫ 




࠾ࢃࡾ࡟
✵Ẽ୰࠾ࡼࡧỈ୰ࡢࢳࢱࣥ࡟ࡘ࠸࡚⼥ゎ㜈್௨ୗࡢ࣮ࣞࢨࣇ࢚ࣝࣥࢫ࡛↷ᑕࡉࢀࡓ⾲㠃ᙧែࡢ㐪࠸ࢆ )(6(0 ほᐹ࡟ࡼࡾㄪ࡭ࡓࠋ⼥ゎ㜈್௨ୗࡢࣇ࢚ࣝࣥࢫ࡟࠾࠸࡚ᙧᡂࡉࢀࡿࢻࢵࢺᵓ㐀ࡀࠊỈ୰ࡢ᪉ࡀ኱ࡁࡃࠊࡇࢀࡣ෭༷ዲᝏ໬࡟ࡼࡿࡶࡢ࡜⪃࠼࡚࠸ࡿࠋࡉࡽ࡟Ỉ୰ࡢ PP ᙜࡓࡾࡢࢻࢵ
ࢺᩘࡣ✵Ẽ࡜ẚ࡭࡚⣙  ಸከࡃࠊࡇࢀࡣ࣮ࣞࢨἼ㛗ࡢ㐪࠸࡟ࡼࡿࡶࡢ࡜⪃࠼ࡽࢀࡿࠋ
ㅰ㎡ᮏ◊✲ࡢ୍㒊ࡣࠊ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲ࠊ⛉Ꮫ◊✲㈝⿵ຓ㔠㸦ᇶ┙◊✲㸦&㸧ㄢ㢟␒ྕ
-3.㸧ࠊཬࡧ㸦ᅜ㸧᪂࢚ࢿࣝࢠ࣮࣭⏘ᴗᢏ⾡⥲ྜ㛤Ⓨᶵᵓ㸦1('2㸧ࡢࠕ࢚ࢿࣝࢠ࣮࣭⎔ቃ᪂ᢏ⾡ඛᑟࣉࣟࢢ࣒ࣛ㸭᪂ᶵ⬟ᮦᩱ๰ᡂࡢࡓࡵࡢ㧗ရ఩࣮ࣞࢨຍᕤᢏ⾡ࡢ㛤Ⓨࠖࠊ+5 ᖺᗘᩥ㒊⛉Ꮫ┬ග࣭㔞Ꮚ㣕㌍ࣇࣛࢵࢢࢩࢵࣉࣉࣟࢢ࣒ࣛ㸦4/($3㸧-30;6ࠊኳ⏣㈈ᅋ㔜Ⅼ◊✲㛤Ⓨຓᡂ㸦ㄢ㢟␒ྕ $)$ࠊ$)%㸧ࡢᨭ᥼ࢆཷࡅ࡚⾜ࢃࢀࡓࠋࡇࡇ࡟ឤㅰ⏦ࡋୖࡆࡲࡍࠋཧ⪃ᩥ⊩  0+DVKLGDHWDO-/DVHU0LFUR1DQR(QJ  
  $,UL]DZDHWDO$SSO3K\V/HWW    -)<RXQJHWDO3K\V5HY%    <)*XDQ  HWDO-9DF6FL7HFKQRO%  
  $)3DQ:-:DQJ;60HL%;=KHQJ=;<DQ$SSO6XUI6FL  
  06SDUNV³7KHRU\RIKHDWLQJRIVROLGV0HWDOV´-$SSO3K\V  
  .6HNLHWDO³/DVHUDEODWLRQRIWLWDQLXPLQZDWHUZLWKQDQRVHFRQGSXOVHV´7KHWK$VLD3DFLILF
/DVHU6\PSRVLXP $3/6 +DNRGDWH-DSDQ6HSW  37)X
㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧− 61 −

࣮ࣞࢨࢆ⏝࠸ࡓ᪂ᶵ⬟๰〇ᢏ⾡ࡢ㛤Ⓨʊప⎔ቃ㈇Ⲵ࢙࢘ࢵࢺࣉࣟࢭࢫ࡛స〇ࡋࡓ⭷࡬ࡢ࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡿᶵ⬟Ⓨ⌧ʊᮾிᕤᴗ኱Ꮫ ≀㉁⌮ᕤᏛ㝔ྠ኱ࣇࣟࣥࢸ࢕࢔ᮦᩱ◊✲ᡤවົ ᯇ ୗ ఙ ᗈ㸯㸬┠ⓗᮾᕤ኱ ᯇୗఙᗈ◊✲ᐊࡀࠊప⎔ቃ㈇Ⲵ࣭ప࢚ࢿࣝࢠ࣮ᾘ㈝࡞࢙࢘ࢵࢺࣉࣟࢭࢫ࡛࠶ࡿ࣑ࢫࢺࢫ

ࣆࣥࢫࣉ࣮ࣞ⿦⨨ࢆ⏝࠸࡚࢞ࣛࢫᇶᯈୖ࡟స〇ࡋࡓ㓟໬ࢫࢬ 6Q2 ⭷ࡢ⾲㠃࡬㜰኱᥋ྜ◊✲ᡤࡢሯᮏ㺃బ⸨◊ᡤⶶࡢࣈ࣮࣮ࣝࣞࢨ࣮ࢆ↷ᑕࡋࠊ⤖ᬗᛶࡢྥୖ࡞࡝ࡢ⾲㠃ᨵ㉁ࢆ┠ⓗ࡜ࡋࡓࠋ㸰㸬◊✲᪉ἲ
 ᖺ  ᭶  ᪥  ᫬㐣ࡂ࠿ࡽ㏆ἣ࡟࠾ࡅࡿ࠾஫࠸ࡢ◊✲ᡂᯝሗ࿌ࡸ௒ᅇࡢ◊✲┠ⓗࠊᐇ㦂᪉㔪➼ࡢ☜ㄆࢆྵࡴᡴࡕྜࢃࡏࢆ⾜ࡗࡓᚋ࡟ࠊྠ᪥ࡢ 㹼㸸 ࡜⩣  ᪥ 㸸㹼 ࡟ᐇ㦂ࢆ⾜ࡗࡓࠋᅗ  ࡟♧ࡍࡼ࠺࡟ࣈ࣮࣮ࣝࣞࢨ࣮⿦⨨ୗ࡟ 6Q2 ⭷ヨᩱࢆタ⨨ࡋࡓୖ࡛ࠊ࣮ࣞࢨ࣮ฟຊࢆ
: ࡟ᅛᐃࡢୖ࡛ࠋ᫬㛫ࢆ  ⛊㛫࡜ኚ໬ࡉࡏ࡚↷ᑕࡋࡓ ᅗ  ࠋ࣮ࣞࢨ࣮↷ᑕᚋࡢ⭷ヨᩱࡢ⤖ᬗᛶホ౯ࢆ ;5'ࠊ⾲㠃ᙧែほᐹࡣ 6(0 ࡟ࡼࡾ⾜ࡗࡓࠋ㸱㸬⤖ᯝ ᅗ  ࡟  ⛊㛫ࡢ↷ᑕ๓ᚋ࡛ࡢ 6Q2 ⭷ࡢ ;5' ࣃࢱ࣮ࣥࠊᅗ  ࡟  ⛊㛫ࡢ࣮ࣞࢨ࣮↷ᑕࢆࡋࡓヨᩱࡢ ;5' ࣃࢱ࣮ࣥࢆ♧ࡍࠋࡇࢀࡼࡾ  ⛊↷ᑕ࡛ࢃࡎ࠿࡟ࣆ࣮ࢡᙉᗘࡀྥ
ୖࡋࠊ ⛊࡛᭦࡟ྥୖࡍࡿࡶࡢࡢࠊ ⛊↷ᑕ࡛ࡣࣆ࣮ࢡࡢ኱ᖜ࡞ῶᑡࡀ☜ㄆ࡛ࡁࡿࠋࡇࢀࡣ  ⛊㛫࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡿග࢚ࢿࣝࢠ࣮࡜᪼

ຠᯝࡣ⤖ᬗ໬࡟ᐤ୚ࡍࡿࡶࡢࡢࠊ ⛊࡜↷ᑕ᫬㛫ࡀ㛗ࡃ࡞ࡿ࡜ࠊ↷ᑕ୰ࡢ⇕࡟ࡼࡗ࡚࢞ࣛࢫᇶᯈ⮬యࡢ⁐⼥ࡀ㢧ⴭ࡜࡞
ࡾࠊ6Q2 ࡜ࡢΰྜࡀ㉳ࡇࡗࡓࡓࡵ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡓࠋᐇ㝿࡟㐃⥆ࡋࡓ࣮ࣞࢨ࣮↷ᑕ࡟ࡼਦ̏ ຜࢾྋ͹ഓ஖ਦ  ϔϩʖϪʖδʖলࣻ͹༹ࢢ− 62 −

ࡾ⿦⨨ࡢ࿘㎶ᶵჾࡶ⇕ࢆᣢࡘᵝᏊࡀឤࡌࡽࢀࠊ࢞ࣛࢫᇶᯈࡀ༑ศ࡟⁐⼥ࡍࡿྍ⬟ᛶࡀ♧၀ࡉࢀ࡚࠸ࡓࠋᅗ  ࡜ᅗ  ࡟  ⛊㛫ࡢ࣮ࣞࢨ࣮↷ᑕ๓ᚋࡢ 6(0 ീࢆ♧ࡍࠋ࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡗ࡚⭷ࡢᖹ⁥ᛶࡀ㐍ࢇ࡛࠸ࡿࡇ࡜ࡀぢ࡚ྲྀࢀࡿࠋ᥋ྜ◊ࡢࣈ࣮࣮ࣝࣞࢨ࣮ࡣฟຊࡀ኱

ኚ኱ࡁࡃࠊ: ࡜ẚ㍑ⓗప࠸ฟຊ࡟タᐃࡋ࡚ࡶࠊ ⛊㛫࡜ẚ㍑ⓗ▷᫬㛫࡛ࡶ࢞ࣛࢫ
ᇶᯈࡀ⼥ゎࡋ⭷ヨᩱࡀቯࢀࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࢫࣆࣥࢫࣉ࣮ࣞἲ࡛స〇ࡋࡓࣇ࢙ࣛ࢖ࢺ )H2 ⭷࡟ࡶྠᵝ࡟࣮ࣞࢨ࣮↷ᑕࡋࡓࡀࠊ㯮Ⰽࢆࡋ࡚࠸ࡿヨᩱ࡛࠶ࡿࡓࡵ࠿㏱᫂࡞
6Q2 ⭷ࡼࡾࡶ⇕྾཰ࡀ኱ࡁ࠸ࡼ࠺࡛ࠊ㹕ࡢ࣮ࣞࢨ࣮↷ᑕ࡛ࡣࢃࡎ࠿  ⛊࡛⭷ヨᩱࡀ◚᩿ࡋࡓࡢ࡛≀ᛶホ౯ࡣฟ᮶࡚࠸࡞࠸ࡀࠊ)H2 ⭷࡛ࡣ )H ࢖࢜ࣥࡢ౯ᩘኚ໬࡛☢Ẽ≉ᛶ➼ࡀኚ໬ࡍࡿࡇ࡜࠿ࡽࠊ௒ᚋࡢᐇ㦂࡛࣮ࣞࢨ࣮↷ᑕຠᯝࡢ☜ㄆࡀᮇᚅࡉࢀࡿࠋ
㸲㸬⤖ㄽ
6Q2 ⭷࡛ࡣࣈ࣮࣮ࣝࣞࢨ࣮↷ᑕ࡟ࡼࡾ⤖ᬗᛶࡢྥୖࡢࡳ࡞ࡽࡎࠊ⭷ࡢ኱ᖜ࡞ᖹ⁥໬࡞࡝⯆࿡῝࠸⤖ᯝࡶᚓࡽࢀࡓࠋ௒ᚋࡣ▼ⱥ࡞࡝ࠊࡼࡾ㧗⪏⇕ᛶᇶᯈୖ࡟స〇ࡋࡓ 6Q2⭷ࠊ)H2 ⭷ࠊ=Q2 ⭷ヨᩱ࡟࣮ࣞࢨ࣮↷ᑕࢆ⾜࠺ᐇ㦂ࡀᚲせ࡛࠶ࡿ࡜⪃࠼࡚࠸ࡿࠋ
ਦ  লࣻ઴‫ޛ‬͹ ;5' Ϗνʖϱਦ  লࣻ࣎ؔ  භͲ͹ ;5'Ϗνʖϱਦ  লࣻ઴͹ 6(0 ଀ਦ   භলࣻ‫ޛ‬͹ 6(0 ଀㸦ඹྠ◊✲ศ㔝㸸 ࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧− 63 −

㖡⣔⾨⏕ᶵ⬟㒊ᮦࡢ♫఍ᐇ⿦᥎㐍ࢆᚿྥࡋࡓឤᰁࣜࢫࢡ᪂ホ౯య⣔ࡢᵓ⠏⛅⏣኱Ꮫ኱Ꮫ㝔⌮ᕤᏛ◊✲⛉     ᐑ㔝 Ὀᚁ
 ㅖ ゝ 㻌ᢠ ⳦ ⣲ ᮦ ࡜ ࡋ ࡚ 㢮 ᆺ ࡉ ࢀ ࡿ 㖡 ࡢ ⾨ ⏕ ຠ ᯝ ࡣ ࠊ&29,' ࡞ ࡝ ࡢ ࢘ ࢖ ࣝ ࢫ ࡟ ᑐ ࡋ ࡚ ࡶ ᭷ ຠ ࡜ ࡉ ࢀ ࡿ ࠋ㖡 ⣔ ᮦ ᩱ ࢆ ⾨ ⏕ ᶵ ⬟ 㒊 ᮦ ࡜ ࡋ ࡚ ά ⏝ ࡋ ࠊᮍ ▱ ࡢ ⑓ ཎ య ࡟ ᑐ ࡍ ࡿ ᪂ ࡋ ࠸ ண 㜵 ⥺ ࡜ ࡋ ࡚ ఩ ⨨ ௜ ࡅ ࡿ ࡇ ࡜ࡣ ࠊࢃ ࡀ ᅜ ࡢ ♫ ఍࣭⚟ ♴ ᡓ ␎ ࠊ⤒ ῭࣭࢚ ࢿ ࣝ ࢠ ࣮ ࣜ ࢫ ࢡ ⟶ ⌮ ࡟ ࡶ 㔜 せ ࡞ ࢔ ࣉ ࣟ ࣮ ࢳ ࡜ ᛮ ࢃ ࢀ ࡿ ࠋࡋ࠿ ࡋ ࠊࡑ ࡢ ᵓ ᝿ ࡢ ᐇ ⌧ ࡟ ࡣ ࠊ⥅ ⥆ ⓗ ࡞ ♫ ఍ ᐇ ⿦ ࢆ ᥎ 㐍 ࡍ ࡿ ࡓ ࡵ ࡢ ୡ ㄽ ᙧ ᡂ ࡶ ୙ ྍ Ḟ ࡛ ࠶ ࡿ ࠋࡑ ࡢ ࡓࡵ ࡟ ࡣ ᚑ ᮶ ホ ౯ ᪉ ἲ ࡟ ᤕ ࡽ ࢃ ࢀ ࡞ ࠸ ࠊ ࢃ ࠿ ࡾ ࡸ ࡍ ࠸ ホ ౯ య ⣔ ࢆ ᚿ ྥ ࡋ ࡓ ᡓ ␎ ࡶ ᚲ せ ࡜ ⪃ ࠼ ࡽ ࢀ ࡓ ࠋࡑ ࡇ ࡛ ࠊձ ከ ᵝ ࡞ ឤ ᰁ ※ ࡸ ᐇ ⎔ ቃ ࡟ ࡶ 㐺 ⏝ ࡛ ࡁ ࡿ ᐇ ド ⓗ ࡞ ホ ౯ ࠊղ ᶵ Ეᐃࡸ㑇ఏᏊゎᯒࡢᑟධ࡟ ࡼ ࡾ ࠊᇵ 㣴 ᧯ స ࡞ ࡝ ࡢ ࣐ ࣥ ࣃ ࣡ ࣮ ࡟ 㢗 ࡿ ᐇ 㦂 ᡭ ἲ ࢆ ྍ ⬟ ࡞ 㝈 ࡾ ௦ ࣭᭰᤼ 㝖 ྍ ⬟ ࡞ ホ ౯ ࠊճ ᚑ ᮶ ἲࡀ ⬤ ᙅ ࡜ ࡉ ࢀ ࡓ ᐃ 㔞 ホ ౯ ⤒ ᫬ ゎ ᯒ ࡞ ࡝ ࢆ ௦ ࣭᭰⿵ ᏶ ྍ ⬟ ࡞ ホ ౯  ࡢ ྍ ⬟ ᛶ 㸭 ಙ 㢗 ᛶ ࢆ 㛤 ᣅ ࡋ ࡍ ࡿ ࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋᮏ ሗ ࡛ ࡣ ࠊࢫ ࢸ ࣥ ࣞ ࢫ 㗰 ࡢ ␗ ᖖ ㈗ ໬ ࡟ ࡼ ࡾ ᚤ ⏕ ≀ ⭉ 㣗 Ⓨ ⏕ ࡢ ⵹ ↛ ᛶ ࡀ 㧗 ࠸ ࡇ ࡜ ࡀ ண ぢ ࡉ ࢀ ࡿ ῐ Ỉ⣔ ᐇ ᶵ ࣉ ࣛ ࣥ ࢺ ⎔ ቃ ࡛ ࠊ 㖡 ⣔ ᮦ ᩱ ࡀ ♧ ࡍ ᑐ ᚤ ⏕ ≀ ᣲ ື ࢆ ࠊ T3&5 TXDQWLWDWLYH SRO\PHUDVH FKDLQUHDFWLRQ ࠊ  1*6 1H[W JHQHUDWLRQ VHTXHQFLQJV  ࡞ ࡝ ࡢ 㑇 ఏ Ꮚ ゎ ᯒ ⓗ ᡭ ἲ ࡛ ㄪ ᰝ ࡋ ࡓ ⤖ ᯝ ࡟ ࡘ ࠸ ࡚ ሗ࿌ࡋࠊ⾨⏕ᶵ⬟ᮦᩱࡢ᪂ホ౯య⣔ࡢᵓ⠏࡟ࡴࡅࡓྍ⬟ᛶࢆᒎᮃࡍࡿࠋ ᐇ 㦂 ᪉ ἲ  ౪ ヨ ᮦ ࠾ ࡼ ࡧ ᾐ ₕ ヨ 㦂 ౪ ヨ ᮦ ࡟ ࡣ ⣧ 㖡 㸦 2)+&㸧 ࢆ 㑅 ᐃ ࡋ ࠊ ẚ ㍑ ᮦ ࡜ ࡋ ࡚ Ⅳ ⣲ 㗰 63&&6% ࠊ 686 ࡞ ࡝ ࢆ ⏝ ព ࡋ ࡓ ࠋྛ ᮦ ᩱ ࠿ ࡽ ᑍ ἲ ࢆ PPPP ࡟ ษ ฟ ࡋ ࡓ ヨ 㦂 ∦ ࢆ స 〇 ࡋ ࠊ ⾲ 㠃 ࡣ ࢚ ࣓ ࣜ ࣮ ⣬ 㸡  ௙ ୖ ࡆ ࡜ ࡋࡓ ࠋࢫ ࢸ ࣥ ࣞ ࢫ 㗰 ࡢ 㟁 ఩ ㈗ ໬ ࢆ ᑟ ࡃ 㧗 ࠸ ᚤ ⏕ ≀ ά ᛶ ࡀ ሗ ࿌ ࡉ ࢀ ࡿ ࢚ ࢿ ࣝ ࢠ ࣮ ࣉ ࣛ ࣥ ࢺ ࡟ ౑ ⏝ ࡍ ࡿ ෭༷Ỉࢆ㈓Ỉࡍࡿ᪋タ࡛ᾐₕヨ㦂ࢆ⾜ࡗࡓࠋ'1$ ᢳ ฟ 
ᾐ ₕ ⎔ ቃ ࡢ ⎔ ቃ Ỉ ࢆ / ᥇ ྲྀ ࡋ ࠊ Ꮝ ᚄ PP ࡢ ࣓ ࣥ ࣈ ࣞ ࣥ ࣇ ࢕ ࣝ ࢱ ࣮ ࡛ ࢁ 㐣 ࡋ ࠊ ᠱ ⃮ ≀ ࢆ ᤕ 㞟ᚋ ࠊ =\PR%,20,&6'1$51$0LQLSUHS.LW ࢆ ⏝ ࠸ ࡚ ᚤ ⏕ ≀ ⏤ ᮶ ࡢ '1$ ࢆ ᢳ ฟ ࡋ ࡓ ࠋ ྛ ヨ 㦂 ∦ ⾲ 㠃࡟ ௜ ╔ ࡋ ࡓ ᚤ ⏕ ≀ ࡣ ࠊ࣏ ࣜ ࢚ ࢳ ࣞ ࣥ 〇 ࣂ ࢵ ࢡ ࡟ P/ ࡢ '1$51$6KLHOG ⁐ ᾮ㸦 =\PR5HVHDUFK ♫ 㸧ࢆ ῧ ຍ ࡋ ࡚ ࣂ ࢵ ࢡ ୰ ࡛ ࡇ ࡍ ࡾ ⴠ ࡜ ࡋ ࠊP/ ᐜ ࣐ ࢖ ࢡ ࣟ ࢳ ࣗ ࣮ ࣈ ࡟ ᅇ ཰ ᚋ ࠊJ ࡛  ศ 㛫 ࡢ㐲 ᚰ ศ 㞳 ࡋ ࠊ =\PR%,20,&6'1$51$0LQLSUHS.LW ࢆ ⏝ ࠸ ࡚ '1$ ࢆ ᢳ ฟ ࡋ ࡓ ࠋ T3&5 ᐃ 㔞 3&5 ྛ ヨ ᩱ ⾲ 㠃 ࡟ ௜ ╔ ࡋ ࡓ ᚤ ⏕ ≀ 㔞 ࡟ ࡘ ࠸ ࡚ ࠊ ୖ ㏙ ࡢ ᪉ ἲ ࡛ ᢳ ฟ ࡋ ࡓ ࢤ ࣀ ࣒ '1$ ࢆ 㗪 ᆺ ࡜ ࡋ ࡓ 6
U51$ 㑇 ఏ Ꮚ ࡢ ࢥ ࣆ ࣮ ᩘ ࢆ T3&5 ࡛ᐃࡋࡓࠋ1*6 ḟ ୡ ௦ ࢩ ࣮ ࢣ ࣥ ࢫ  ゎ ᯒ ᢳ ฟ ࡋ ࡓ '1$ ࢆ 㗪 ᆺ ࡟ ࡋ ࡚ ࠊ ⣽ ⳦ ࡜ ࢔ ࣮ ࢟ ࢔ ࡢ 6U51$ 㑇 ఏ Ꮚ ࢆ ᶆ ⓗ ࡜ ࡋ ࡓ 8)85 ࣉࣛ ࢖ ࣐ ࣮ ࢆ ⏝ ࠸ ࡓ 3&5 ࡟ ࡼ ࡾ 㑇 ఏ Ꮚ ᩿ ∦ ࢆ ቑ ᖜ ࡋ ࡓ ࠋ ྛ 278 ࡢ ௦ ⾲ 㓄 ิ ᝟ ሗ ࡟ ᇶ ࡙ ࡁ ࠊ 6LOYD
 278V IXOOOHQJWK VHTXHQFHV ࡢ ࢹ ࣮ ࢱ ࣋ ࣮ ࢫ ࢆ ⏝ ࠸ ࡚ 7D[RQRP\ DQDO\VLV ࢆ ᐇ ᪋ ࡍ ࡿ ࡇ ࡜ ࡛ ࠊ ศᏊ⣔⤫Ꮫⓗ࡞㏆⦕✀ࢆྠᐃࡋࡓࠋ ⤖ ᯝ ࡜ ⪃ ᐹ  ヨ ᩱ ⾲ 㠃 ࡢ ௜ ╔ ᚤ ⏕ ≀ 㔞 ࡢ ᐃ 㔞 ᅗ 㸯 ࡟ ྛ ヨ 㦂 ∦ ⾲ 㠃 ࡢ ௜ ╔ ᚤ ⏕ ≀ 㔞 ࢆ T3&5 ࡛ ホ ౯ ࡋ ࡓ ⤖ ᯝ ࢆ ♧ ࡍ ࠋ ⦪ ㍈ ࡀ ♧ ࡍ ᚤ ⏕ ≀ 㔞 ࡣ 6

− 64 −

U51$ 㑇 ఏ Ꮚ ࡢ ࢥ ࣆ ࣮ ᩘ ࡜ ࡋ ࡚ ࠾ ࡾ ࠊ ⤒ ᫬ ኚ ື ࡀ ᢕ ᥱ࡛ࡁࡿࡼ࠺࡟ྛᮦᩱࡢ  ࠿᭶࡜  ࠿᭶ࢆ୪⨨ࡋࡓࠋࢾ࣓ ࣜ ࡀ ㍍ ᚤ ࡜ ุ ᩿ ࡉ ࢀ ࡓ 2)+& ⾲ 㠃 ࡟ ௜ ╔ ࡋ ࡓ ᚤ ⏕ ≀㔞 ࡣ    FRSLHVFP  ࢆ ୗ ᅇ ࡿ ᭱ ࡶ ᑡ ࡞ ࠸ ್ ࡜ ࡋ ࡚ ☜ ㄆࡉ ࢀ ࡓ ࠋ ⤒ ᫬ ኚ ື ⓗ ࡞ ほ Ⅼ ࡟ ࠾ ࠸ ࡚ ࡶ 2)+& ࡛ ࡣ   
FRSLHVFP  ⛬ ᗘ ࡲ ࡛ ⣙  ᱆ ῶ ᑡ ࡍ ࡿ ഴ ྥ ࡀ ♧ ࡉ ࢀ ࡓ ࠋ6 U51$ 㑇 ఏ Ꮚ ࡣ ඲ ࡚ ࡢ ཎ ᰾ ⏕ ≀ ࡀ ᭷ ࡋ ࡚ ࠸ ࡿ ࡶ ࡢࡢ ࠊ୍ ⣽ ⬊ ୰ ࡢ ࢥ ࣆ ࣮ ᩘ ࡣ 㹼  ⛬ ᗘ ᖹ ᆒ ⣙  ࡢ ศ ᕸࡀ࠶ࡾࠊᚤ⏕≀✀࡟ࡼࡗ࡚␗࡞ࡿࠋࡑࡢࡓࡵࠊࢥࣆ࣮
ᩘ⮬యࡣ⣽⬊ᩘ࡜ࡣ୍⮴ࡋ࡞࠸ࡀࠊᮏ᳨ウࡢ⤖ᯝࡣ඲࡚ྠ୍⎔ቃࡢᚤ⏕≀⩌ࢆᑐ㇟࡜ࡋ࡚࠸ࡿࡇ࡜ࢆ๓ᥦᅗ  ྛ ヨ 㦂 ∦ ࡟ ௜ ╔ ࡋ ࡓ ᚤ ⏕ ≀ 㔞 ࡟ ࠊᚤ ⏕ ≀ 㔞 ࡢ ┦ ᑐ ⓗ ホ ౯ ࡢ ᣦ ᶆ ࡟ ࡞ ࡿ ࡜ ุ ᩿ ࡋ ࡚ ࠸ ࡿ ࠋᮏ ᳨ ウ ࡛ ࡣ 2)+& ࡟ ࠾ ࠸ ࡚ ࠊ௚ ࡢ ヨ 㦂 ∦ࡼ ࡾ ࡶ ᚤ ⏕ ≀ ௜ ╔ 㔞㸦 㑇 ఏ Ꮚ ࢥ ࣆ ࣮ ᩘ 㸧ࡀ ᑡ ࡞ ࡃ ࠊ᫬ 㛫 ⤒ 㐣 ࡟ ࠾ ࠸ ࡚ ࡶ ῶ ᑡ ഴ ྥ ࡶ ࡳ ࡽ ࢀ ࠊ⎔ ቃ ୰࡛ ࡢ 㖡 ࡢ ᢠ ⳦ ຠ ᯝ ࡀ స ⏝ ࡋ ࡓ ྍ ⬟ ᛶ ࡀ ♧ ၀ ࡉ ࢀ ࡿ ࠋ⮬ ↛ ⎔ ቃ ୰ ࡟ ࡣ ᇵ 㣴 ୙ ྍ ⬟ ࡶ ࡋ ࡃ ࡣ ᇵ 㣴 ᅔ 㞴 ࡞ᚤ ⏕ ≀ ࡶ Ꮡ ᅾ ࡍ ࡿ ࡓ ࡵ ࠊᇵ 㣴 ἲ ࡟ ౫ Ꮡ ࡏ ࡎ ࡟ ࠊ⮬ ↛ ⎔ ቃ ୰ ࡢ ⣽ ⳦ ࡟ ᑐ ࡍ ࡿ ᢠ ⳦ ຠ ᯝ ࡢ ᳨ ド ࡍ ࡿ ᡭ ἲ࡜ ࡋ ࡚ ࠊ T3&5 ࡢ ά ⏝ ࡀ ᮇ ᚅ ࡛ ࡁ ࡿ ࡜ ⪃ ࠼ ࡿ ࠋ  ᚤ ⏕ ≀ ⩌ 㞟 ࡟ ᑐ ࡍ ࡿ ౪ ヨ ᮦ ࡢ ᙳ 㡪   ᅗ  ࡟⎔ቃỈ࠾ࡼࡧྛ✀ヨᩱ⾲㠃ࡢᚤ⏕≀⩌㞟ࢆ
1*6 ࡛ ㄪ ᰝ ࡋ ࡓ ⤖ ᯝ ࢆ ♧ ࡍ ࠋᅗ ୰ ࡟ ♧ ࡍ ᚤ ⏕ ≀ ✀ ࡣඃ ༨ ⋡ ࡢ ୖ ఩  ✀ ࢆ ᢳ ฟ ࡋ ࡓ ⤖ ᯝ ࡛ ᵓ ᡂ ࡋ ࡚ ࠸ࡿ ࠋ ⎔ ቃ Ỉ ࡛ ࡣ &RPDPRQDGDFHDH ⛉ ᮍ ྠ ᐃ ⣽ ⳦
6LGHUR[\GDQV ᒓ ㏆ ⦕ ✀ ࠊ1RYRVSKLQJRELXP ᒓ ㏆ ⦕ ✀ ࡞࡝ࡢᚑᒓᰤ㣴ᛶࡢᚤ⏕≀ࡀ୺せ࡞ᵓᡂ✀࡜ࡋ᳨࡚ฟ ࡉ ࢀ ࡿ ࠊ 2)+& ࡛ ࡣ %HJJLDWRDFHDH ⛉ ᮍ ྠ ᐃ ✀ ࡀ㞟 ✚ 㸦  ࠿ ᭶ ࡛ ࠊ  ࠿ ᭶ ࡛ 㸧 ࡋ ࡚ ࠾ ࡾ ࠊ
63&&6% ࡛ ࡣ 'HFKORURPRQDV ᒓ ㏆ ⦕ ✀ ࡀ 㞟 ✚㸦  ࠿᭶ ࡛ ࠊ  ࠿ ᭶ ࡛ 㸧 ࡋ ࡚ ࠸ ࡓ ࠋ ୍ ᪉ ࡛ ࠊ686 ࡛ ࡣ ࠊ ≉ ᐃ ࡢ ᚤ ⏕ ≀ ࡢ 㞟 ✚ ࡣ ぢ ࡽ ࢀ ࡎ ࠊ ᭱ࡶ ᵓ ᡂ ẚ ࡢ ኱ ࡁ ࠸ &\DQREDFWHULD ⥘ ᮍ ྠ ᐃ ✀ ࡛ ᅗ ྛ ヨ 㦂 ∦ ࡛ ඃ ༨ ✀ ࡜ ࡞ ࡗ ࡓ ᚤ ⏕ ≀ ࡛ ࠶ ࡗ ࡓ ࠋ1*6 ࢆ ฼ ⏝ ࡍ ࡿ ࡇ ࡜ ࡛ ࠊྠ ୍ ⎔ ቃ ୰ ࡛ ࠶ ࡗ ࡚ ࡶ ࣂ ࢖ ࢜ ࣇ ࢕ ࣝ ࣒ ࢆ ᵓ ᡂ ࡍ ࡿ ᚤ ⏕ ≀ ⩌ 㞟 ࡢᵓ ᡂ ࡣ ኱ ࡁ ࡃ ␗ ࡞ ࡿ ࡇ ࡜ ࡀ 㩭 ᫂ ࡟ ☜ ࠿ ࡵ ࡽ ࢀ ࡓ ࠋࡇ ࡇ ࡟ ♧ ࡋ ࡓ ࢹ ࣮ ࢱ ࡣ ᮦ ᩱ ࡢ ᢠ ⳦ ᛶ ࡟ ᑐ ࡍ ࡿ ᚤ ⏕≀ ࡢ ឤ ཷ ᛶ ࡸ ࠊ⎔ ቃ ୰ ࡛ ࡢ ⏕ ≀ Ꮫ ⓗ ࡞ ở ࢀ ࡢ ᐇ ែ㸦 ᚤ ⏕ ≀ ⩌ ⾗ ᵓ 㐀 㸧ࢆ ♧ ࡋ ࡚ ࠾ ࡾ ࠊᮦ ᩱ ࡀ ᢚ ไ ࡍࡿᚤ⏕≀ࡢ✀㢮ࠊࡍ࡞ࢃࡕᢠ⳦ࢫ࣌ࢡࢺࣝࢆྍど໬ࡍࡿ᪉ἲ࡜ࡋ࡚ࡢά⏝ࡀᮇᚅ࡛ࡁࡿࠋ ࡲ ࡜ ࡵ   T3&5 ࢆ 㐺 ⏝ ࡋ ࡓ ヨ ᩱ ࡢ ᚤ ⏕ ≀ 㔞 ㄪ ᰝ ࡟ ࠾ ࠸ ࡚ ࠊ ᢠ ⳦ ᛶ ࢆ ᭷ ࡍ ࡿ 2)+& ࡢ ⾲ 㠃 ࡬ ࡢ ௜ ╔ ᚤ ⏕ ≀㔞ࡀࠊᢠ⳦ᛶࢆ᭷ࡋ࡞࠸௚ࡢヨᩱࡼࡾࡶᑠࡉࡃ࡞ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ
 1*6 ゎ ᯒ ࡟ ࡼ ࡾ ࠊ 㖡 ⾲ 㠃 ࡟ ᙧ ᡂ ࡉ ࢀ ࡿ ᚤ ⏕ ≀ ⩌ 㞟 ᵓ 㐀 ࡜ ࠊ ⎔ ቃ Ỉ ࠶ ࡿ ࠸ ࡣ 㕲 㗰 ᮦ ᩱ ⾲ 㠃 ࡢ ⩌ 㞟ᵓ㐀࡟㐪࠸ࡀ࠶ࡿࡇ࡜ࢆ☜ㄆࡋࠊ㖡ࡢᢠ⳦ຠᯝ࡟ᑐࡍࡿᚤ⏕≀ഃࡢឤཷᛶࡢ㐪࠸ࢆ♧ࡋࡓࠋㅰ㎡ᮏ ◊ ✲ ࡣ ࠊ-$067(& ⱝ ஭ ᬡ  ༤ ኈ ࠊᮾ ி ᕤ ᴗ ኱ Ꮫ㸦 ⌧㸸⮬ ἞ ་ ⛉ ኱ Ꮫ 㸧 ᐑ Ọ ୍ ᙪ  ༤ ኈ 㸪㸦 ᰴ 㸧,13(;◁ሙᩄ⾜༤ኈࠊỈୖ⿱㈗Ặ࡜ࡢඹྠ◊✲࡟ࡼࡾᐇ᪋ࡋࡓࡶࡢ࡛࠶ࡿࠋ

− 65 −

㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧ϪʖδέϧρυΡϱή͕Γ;੷૜ଆ‫ٗܙ‬ढ़͹֋൅ਫ਼ରన߻ࡒྋ͹ඏࡋ  ࣏‫ݫ‬Ϫʖδଆ‫ܙ‬घ๑͹‫ݗ‬౾ۛ‫ق‬୉ָਫ਼෼ཀྵ޽ָ෨ࢀ৏ঋ୉ ͺͣΌͶ Ϊϧηࡒྋͺώ΢ΨϜτϨΠϩ >@ ͳ͢ͱɼΉͪɼԿָ҈ఈ੓Ώࢤ৖΃͹҈ఈͪ͢੣඾‫ڇڛ‬ͶΓΕ‫֋ڂݜ‬൅Ͷ͖ܿͦ͵͏ཀྵՌ‫حؽ‬͹‫ݬ‬ྋͳ͢ͱ‫͠༽׈‬Ηͱ͏Ζɽਫ਼ର਎࿪੓ຜࡒྋͺɼࠐ͹क੔෾Ͳ͍Ζύ΢χϫΫεΠϏν
΢φ +\GUR[\DSDWLWHʁҐԾɼ+$  ͗େනదͲ͍Ε >@ɼ੖‫֐ܙ‬ՌΏࣅՌ྘Ү͵ʹࠐͶઅ஖ͤΖ΢ϱϕϧϱφࡒྋ͹න໚Ͷࢬ͠ΗΖɽ͞͹ +$ ͺਫ਼ର಼Ͳ͹༻մΝཊ੏ͤΖͪΌɼ݃ধ੓͗߶͏͞ͳ͗‫ٽ‬ΌΔΗΖɽ+$ ੔ຜͺҲൢͶϕϧθϜ༻ࣻ๑ͲߨΚΗɼ਼ PP ͹න໚૊͖͠Δಃޭ੓ͺ༙͢ͱ͏͵͏ɽҲ๏ͲɼϏϩηϪʖδ଱੷
3XOVH/DVHU'HSRVLWLRQ ҐԾɼ3/'  ๑Ν༽͏Ζͳන໚૊਼͗͠ QP ͹ಃޭ੓Ν༙ͤΖ +$ ຜΝ੔ຜͤΖ͞ͳ͗
Ͳ͘Ζɽ3/' ๑Ͳͺ੔ຜ‫ݬ‬ཀྵΏ݃ধԿଇ਒͹ͪΌࡒྋΝ߶ԻౕͶՅ೦ͤΖචགྷ͍͗ΕɼΪϧηන໚Ͷ੔ຜͤΖ͞ͳΝߡྂͤΖͳࣨಃ͹Ӫ‫ڻ‬Νඈ͜Ζ͞ͳ͗ࠖೋͲ͍Εಃޭ੓͗ଝ͵ΚΗͱ͢Ή͑ɽΉͪɼ‫خ‬൚સରΝՅ೦ͦ͡ΖΝಚ͵͏ͪΌɼ೜қ͹‫྘ؔۯ‬ҮΝ݃ধԿͦ͠Ζ͞ͳ͗Ͳͥ͘ɼྭ͓ͻϏΤξʖϗρφ๑ͶΓΖ ' ϕϨϱφघ๑͵ʹΝ༽͏ͪॶ๮͹ཱིରߑଆΝࡠ੣ͤΖ͞ͳ͗ࠖೋͲ͍Ζɽಃޭ੓Ν༙ͪ͢߁͚༽͏ΔΗΖཀྵՌ‫͍Ͳحؽ‬ΖΪϧηͶɼ৏‫ى‬͹՟ୌΝࠂෲͤΖ͞ͳ͗Ͳ͘ΗͻɼཱིରߑଆΝ༙ͤΖ +$ ࡒྋͶࡋ๖ക཈͗Ն೵ͳ͵Εɼಋ࣎Ͷഐ໚লࣻΝ൒͑ޭָ΢ϟʖζϱήΏࡒྋʷࡋ๖ֆ໚͹؏ࡱ΍Ն೵ͳ͵Ζɽ͠ΔͶɼਕରࠐͶۛ͏‫ؽ‬փ‫ౕک‬Ν༙͢ͱ͏
Ζ͞ͳ͖Δ΢ϱϕϧϱφࡒྋͳ͢ͱ‫غ‬ଶ͠ΗΖ 3((. 3RO\(WKHU(WKHU.HWRQH  धࢹන໚΃͹੔ຜ΍Ն೵Ͷ͵
Ζɽຌ‫Ͳڂݜ‬ͺɼϪʖδέϧρυΡϱήٗढ़Ν಍೘ͤΖ͞ͳͲɼ+$ ࡒྋΝɼϒϱϛ΢ϱφͶՅ೦ཱིରଆ‫ܙ‬Νߨ͑ٗढ़Ͷͯ͏ͱ‫ݗ‬౾Νߨ͑ɽ Ϫʖδলࣻ࣎͹ +$ ༻༧ಝ੓͹඲ՃͳశՅ෼ͶΓΖ੏‫ޜ‬ Ϫʖδলࣻ࣎͹ +$ ༻༧ಝ੓ͺɼϏΤξʖϗρχ๑ͶΓΖ੷૜ߑଆ‫ܙ‬੔Ͷ͕͏ͱ॑གྷͲ͍Ζɽͨ͞Ͳɼ+$ ΃࿊କ൅৾ &:  Ϫʖδলࣻ͢༻༧
ಝ੓Ν඲Ճ͢ɼశՅ෼ΝՅ͓Ζ͞ͳͲಝ੓੏‫ޜ‬͹Ն೵੓Ν‫ݗ‬౾ͪ͢ɽ ਦ  ͶϪʖδলࣻ‫ܧ‬Νࣖͤɽ1G ϓΟ΢ώʖϪʖδ ഀௗ QP  Ν ਦ   Ϫʖδলࣻ‫ܧ‬࣢ࣙಊητʖζ΃಍ޭ͢ɼॄޭϪϱθΝ༽͏ͱॄޭলࣻΝߨͮͪɽলࣻࢾྋͺɼ+$ ฆରͶ೬੓Ν߶ΌΖώ΢ϱ
ξʖͳ͢ͱ 6L2ɼޭ͹‫ٷ‬फΝ߶ΌΖ 6L& ΝశՅ෼ͳ͢ͱ૱ྖ J Ͷ೜қ͹ׄ߻ͲՅ͓ɼύϱχϕϪηͶΓΕν
ϔϪρφ੔‫ܗ‬Νߨͮͪ‫ޛ‬Ͷు‫ـ‬࿏Ν༽͏ͱ ˈ  ࣎ؔ͹Հর݃ͤΖ͞ͳͲࡠ੔ͪ͢ɽ ݃Վͳ͢ͱɼࣰ‫ͪ͢༽࢘Ͳݩ‬Ϫʖδ͹࠹୉ड़ྙ : Ν +$ Ͷলࣻͪ͢ࡏɼࡒྋ͹༻༧ͺ೟ΌΔΗ͵͖ͮͪɽ



ਦ 

D  າశՅ࣎͹Ϫʖδলࣻ࣎͹ ;5' ηϘέφϩ ੼৯ʁϪʖδলࣻ઴ɼ੪৯ʁϪʖδলࣻ‫ ޛ‬
E  ҡ͵ΖశՅ෼ೳౕͶ͕͜ΖϪʖδলࣻ࣎͹ +$ ༻༧ಝ੓ 
− 66 −

Ϫʖδলࣻ઴‫ ; Ͳޛ‬તյ઄ ;5'  ͶΓΕ݃ধ੓Ν඲Ճͪ݃͢ՎΝਦ  D ͶࣖͤɽϪʖδলࣻ઴ ੼ત  ͳϪʖδলࣻ‫ ޛ‬੪ત  ΝർֳͤΖͳ +$ ༟པ͹ϒʖέ‫ౕک‬Ν‫؜‬ΌɼηϘέφϩͶ໎֮͵รԿͺ೟ΌΔ͵͖ͮͪɽͨ͞
ͲɼశՅ෼ΝรԿͦͪ͠ࡏ͹݃ՎΝਦ  E Ͷࣖͤɽޭ‫ٷ‬फࡐͳ͢ͱ‫غ‬ଶͤΖ 6L& ͗ໃశՅ͹৖߻ɼώ΢ϱξʖͲ
͍Ζ 6L2 ͹ׄ߻Ͷ‫ر‬Δͥන໚‫ܙ‬য়ͺસ͚รԿͤΖ͞ͳ͵͚༻մͤΖ͞ͳͺ͵͖ͮͪɽҲ๏Ͳɼ6L& ΝశՅͪ͢৖
߻ɼޭ‫ٷ‬फͶΓΖতԻ͗ଇ਒͠Ηώ΢ϱξʖͲ͍Ζ 6L2 ͗ໃశՅͲ΍༻մ֮͗೟͠Ηͪ͗ɼ‫ٺ‬তԻͶΓΖԢྙ൅ਫ਼ͶࡒྋׄΗ౵֮͗೟͠Ηͪɽͨ͞Ͳɼώ΢ϱξʖͳ͢ͱ 6L2 ͗శՅ͠ΗΖ͞ͳͲɼ༻༧෼͹೬੓͗ଁՅ͢ɼׄ
Η͗ཊ੏͠ΗΖͳͳ΍Ͷׄ߻͗ॉ෾Ͷଡ͏৖߻ͺ಼෨͗‫ۯ‬ಐͲ͍ΖχʖϞয়͹๴௃ߑଆͳ͵Ζ͞ͳ֮͗೟͠Ηͪɽ  ϪʖδૡӀলࣻͶΓΖඏࡋ༻༧ߑଆࡠ੔͹‫ݗ‬౾ శՅ෼ͶΓΖ +$ ༻մಝ੓͹‫݃ৄݗ‬ՎΓΕɼϪʖδޭ͹‫ٷ‬फΝଁՅͦ͠Ζ͞ͳͲ༻մΝ൅ਫ਼
ͦ͠Ζ͞ͳ͗Ͳ͘ɼͨ͹༻༧෼೬੓Ν૤ࡠͤΖ͞ͳ͗ࣖࠨ͠Ηͪɽ͞͹எ‫ݡ‬Ν‫خ‬ͶɼϪʖδ͹ૡӀলࣻͶΓΖ༻༧ড়݇Ν‫ݗ‬౾ͪ͢ɽҲ๏Ͳɼ+$ ΃͹శՅ෼ͺɼٗढ़Ԣ༽઎͹‫ڂݜ‬ড়݇ͶӪ‫ڻ‬Ν‫ͤ·ٶ‬Ն೵੓͗‫ݔ‬೨͠ΗΖͪΌɼड़པΖ‫ݸ‬Εͨ͹శՅ෼ͺঙ͵͏Ά͑͗๮Ή͢͏ɽͨ͞
Ͳɼຌߴ໪Ͷ͕͜ΖૡӀলࣻΝߨ͑Ϫʖδͺɼޭ‫ٷ‬फࡐ͹ 6L& ΝໃశՅͳ͢ɼ+$ ͹‫ٷ‬फི͗߶͏ഀௗ QP ͹ &: ϪʖδΝ༽͏ͪɽਦ   ҡ͵Ζड़ྙ6L2 శՅྖͶ͕͜ΖϪʖδૡӀ݃Վ ࣙಊ  ࣢ητʖζΝ PPV ͹ଐౕͲҡ͵ΖϪʖδड़ྙͲૡӀͪ͢ɼҡ͵Ζ 6L2 శՅྖ͹ +$ লࣻ݃ՎΝਦ  Ͷࣖͤɽన઀͵ड़ྙɼ6L2 శՅྖͳͤΖ͞ͳͲՅ޽ત෱ PP ҐԾ͹ +$ ༻༧ϧ΢ϱΝࡠ੔ͤΖ͞ͳΝୣ੔ͪ͢ɽ
 ݃࿨ ຌ‫Ͳڂݜ‬ͺɼҡ͵ΖశՅ෼ྖ͹ +$ Ͷ &: ϪʖδΝলࣻͤΖ͞ͳͲɼϪʖδέϧρυΡϱήΝ໪ࢨͪ͢ +$ Ϫʖδ༻༧ಝ੓Ͷͯ͏ͱ‫ৄݗ‬Νߨͮͪɽన઀͵ޭ‫ٷ‬फϏϭʖ͕Γ;ώ΢ϱξʖశՅ෼ͶΓΕɼત෱ PP ҐԾ͹ඏࡋ༻༧ϧ΢ϱ͹ਫ਼੔͗ୣ੔ͤΖ͞ͳΝ໎Δ͖Ͷͪ͢ɽࠕ‫ޛ‬ɼΓΕࡋ͖͵Ϗϧϟʖν͹ড়݇ड़͢Ν௪ͣͱ߶඾ҒԿΝߨ͏ɽ੷૜ߑଆ͹ࣰৄͶ޴͜ͱ‫ݗ‬౾Ν਒Όͱ͏͚ɽःࣛ ຌ‫ڠ‬ಋ‫ڂݜ‬͹ࣰࢬͤΖͶ͍ͪΕɼण͜೘Ηɼ͟ࢩԋࣂͮͪ௫ຌ‫࣪ڂݜ‬͹௫ຌ‫گ‬दɼࠦ౽०‫گ‬दͶ޲͚͕ླਅ͢
৏͝Ήͤɽ
ࢂߡช‫ݛ‬>@//+HQFKOHWDO-%LRPHG0DWHU5HV     >@ ‫ ਁٳ‬୉௫-6RF0DWHU6FL    
>@+1LVKLNDZD68PDWDQL0DWHU/HWW  
‫ڠ‬ಋ‫ڂݜ‬෾໼ʁϪʖδϕϫιηָ෾໼  − 67 −

࣮ࣞࢨ࡟ࡼࡿᇶᮦຍ⇕ࡢ࣮ࣞࢨ⢊య⫗┒ᒙࡢࡁ⿣ᢚไຠᯝ
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ࡎࡘ⛣ືࡉࡏࡓ఩⨨࡟↷ᑕࡋࡓࠋࡇࡢ᫬ࠊ࣮ࣞࢨගฟຊࡣ㹼:࡜ࡋࡓࠋྛ᮲௳࡟࠾࠸࡚ࠊ⫗┒ࣅ࣮ࢻࢆ㸱ᮏᙧᡂࡋࡓࠋ
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ᮏ◊✲䛷䛿㏆㉥እ⥺䝺䞊䝄䞊䛸㟷Ⰽ༙ᑟయ䝺䞊䝄䞊䜢㔜␚䛧䛯㟷Ⰽ䞉㏆㉥እ⥺䝝䜲䝤䝸䝑䝗䝺䞊䝄䞊䜢⏝䛔䛶⣧㖡䛾㔜䛽⁐᥋䜢⾜䛔䠈䝺䞊䝄䞊䛾䝟䝽䞊ᐦᗘ䛜⁐䛡㎸䜏῝䛥䛻୚䛘䜛ᙳ㡪䜢ㄪᰝ䛧䛯䠊䛭䛾⤖ᯝ䠈㏆㉥እ⥺䝺䞊䝄䞊䞉㟷Ⰽ༙ᑟయ䝺䞊䝄䞊䛾䝟䝽䞊ᐦᗘ䜢ቑຍ䛥䛫䜛䛸῝䛔⁐䛡㎸䜏䛜ᚓ䜙䜜䜛䛣䛸䛻ຍ䛘䠈㟷Ⰽ༙ᑟయ䝺䞊䝄䞊䛾䝟䝽䞊ᐦᗘ䜢ቑຍ䛥䛫䜛䛣䛸䛷䜘䜚ຠ⋡ⓗ䛻῝䛔⁐䛡㎸䜏䛾ᙧᡂ䛜ྍ⬟䛷䛒䜛䛣䛸䛜䜟䛛䛳䛯䠊ඹྠ◊✲ศ㔝䠖䝺䞊䝄䝥䝻䝉䝇Ꮫศ㔝 − 71 −

㑅ᢥⓗ࣮ࣞࢨ⁐⼥ἲࢆ⏝࠸ࡓࢳࢱࣥྜ㔠ࡢ✚ᒙ㐀ᙧ࡟࠾ࡅࡿ
ࣅ࣮࣒ࣉࣟࣇ࢓࢖ࣝࡢຠᯝ
㏆␥኱Ꮫ ⥲ྜ⌮ᕤᏛ◊✲⛉ ࢚ࣞࢡࢺࣟࢽࢡࢫ⣔ᕤᏛᑓᨷ ྜྷ⏣ᐇ࣭ୖ⏣ᾴ㞞 ┠ⓗ
7L$O9 7L ࡣ㍍㔞࠿ࡘඃࢀࡓ⪏㣗ᛶཬࡧ⏕య㐺ྜᛶࢆ᭷ࡋ࡚࠸ࡿࡓࡵࠊ⯟✵Ᏹᐂࡸ⏕య࢖ࣥࣉࣛࣥࢺ➼࡟⏝࠸ࡽࢀ࡚࠸ࡿࠋࡋ࠿ࡋࠊ㞴๐ᮦ࡛࠶ࡿࡓࡵࠊ」㞧ᙧ≧ࡢษ๐ຍᕤࡀᅔ㞴࡛࠶ࡿࠋࡑࡇ࡛ࠊษ๐ຍᕤࡀ୙せ࡞㔠ᒓࡢ' ࣉࣜࣥࢸ࢕ࣥࢢᢏ⾡ࡢ୍ࡘ࡛࠶ࡿࠊ㑅ᢥⓗ࣮ࣞࢨ⁐⼥ἲ 6HOHFWLYH/DVHU0HOWLQJ6/0 ࡟╔┠ࡋࡓࠋ6/0 ࡜ࡣࠊᇶᯈ࡟ᩜࡁᆒࡋࡓ㔠ᒓᮦᩱ⢊ᮎ࡟࣮ࣞࢨࢆ↷ᑕࡍࡿࡇ࡜࡟ࡼࡗ࡚⢊ᮎࢆ⁐⼥࣭จᅛࡉࡏ୍࡚ᒙࡢ⓶⭷ࢆᙧᡂࡋࠊࡇ
ࢀࢆ✚ᒙࡋ࡚❧యᙧ≧ࡢ㐀ᙧࢆ⾜࠺ᡭἲ࡛࠶ࡿࠋ6/0 ࡟ࡣᚑ᮶ࡢษ๐ຍᕤẚ࡭࡚ᚤ⣽࡞㐀ᙧࡀ࡛ࡁࡿ௚ࠊタィࡢ⮬⏤ᗘࡀ㧗࠸➼ࡢ≉㛗ࡀ࠶ࡿࠋ୍᪉ࠊ㐀ᙧ᫬࡟ࡣࢫࣃࢵࢱ࡜ࡼࡤࢀࡿ㔠ᒓ⢊ᮎࡢ㣕ᩓࡀⓎ⏕ࡋࠊ㐀ᙧ≀ࡢᐦᗘ➼ࡸ⾲㠃⢭ᗘ➼ࡢᶵᲔ≉ᛶࡀపୗࡍࡿせᅉ࡜࡞ࡿࡓࡵࠊࢫࣃࢵࢱࣞࢫ࡞㐀ᙧᢏ⾡ࡢ㛤Ⓨࡀせồࡉࢀ࡚࠸ࡿࠋ⌧ᅾࡢ 6/0࡛ࡣ୺࡟࢞࢘ࢩ࢔ࣥࣅ࣮࣒ࡀ⏝࠸ࡽࢀ࡚࠸ࡿࠋ࢞࢘ࢩ࢔ࣥࣅ࣮࣒ࡣ୰ᚰࡢࣅ࣮࣒ᙉᗘࡀ㧗࠸ࠋࡑࡢࡓࡵࠊ࣮ࣞࢨ↷ᑕ㒊ࡢ ᗘࡀ୙ᆒ୍࡜࡞ࡾࠊࡇࢀࡀࢫࣃࢵࢱࡢⓎ⏕せᅉ࡜࡞ࡗ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣ࣮ࣞࢨࡢ
ࣅ࣮࣒ࣉࣟࣇ࢓࢖ࣝไᚚ࡜ࡋ࡚ࣇࣛࢵࢺࢺࢵࣉ࣮ࣔࢻࢆᩚᙧࡋࠊࡇࢀࢆ⏝࠸࡚ 7L ࡢ㐀ᙧ࡟࠾࠸࡚ࣅ࣮࣒ࣉࣟࣇ
࢓࢖ࣝࡀࢫࣃࢵࢱ࡟ཬࡰࡍᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࠋ
 ᐇ㦂᪉ἲᮏ◊✲࡛ࡣ࢞࢘ࢩ࢔ࣥࣅ࣮࣒࡜ࣇࣛࢵࢺࢺࢵࣉࣅ࣮࣒ࡢ  ✀㢮ࡢࣉࣟࣇ࢓࢖ࣝࢆ⏝࠸࡚ࣅ࣮ࢻ㐀ᙧࢆᐇ᪋ࡋࡓࠋ
)LJ ࡟ᵓ⠏ࡋࡓ 7L ࡢࣅ࣮ࢻ㐀ᙧࡢᐇ㦂ᴫ␎ᅗࢆ♧ࡍࠋ⇕※࡟ࡣἼ㛗 QPࠊࢥ࢔ᚄ ȝP ࡢ㏆㉥እ⥺ࣇ࢓࢖ࣂ࣮ࣞࢨࢆ⏝࠸ࡓࠋࣇ࢓࢖ࣂ➃࠿ࡽᑕฟࡉࢀࡓ࣮ࣞࢨගࢆ I ࡢࢥ࣓࣮ࣜࢺࣞࣥࢬ࡟୪⾜ග࡟ࡋࡓᚋࠊ࢞࢘ࢩ࢔ࣥ
ࣅ࣮࣒࡛ࡣ IPP ࡢ㞟ගࣞࣥࢬࢆ⏝࠸࡚࢖ࣥࣇ࢛࣮࢝ࢫ࡛ )LJ D ࡟♧ࡍࡼ࠺࡟ࢫ࣏ࢵࢺᚄ  ȣP ࡟㞟ගࡋࡓࠋࡲࡓࠊࣇࣛࢵࢺࢺࢵࣉࣅ࣮࣒࡛ࡣ I ࡢࢥ࣓࣮ࣜࢺࣞࣥࢬ࡛ᖹ⾜ග࡟ࡋࡓ࢞࢘ࢩ࢔ࣥࣅ࣮࣒ࢆࠊࣅ࣮࣒ࣞࢹࣗ
࣮ࢧ࣮ཬࡧࣅ࣮࣒ࢩ࢙࢖ࣃ࣮ࢆ⏝࠸࡚࣮ࣞࢨගࢆไᚚࡋࡓᚋࠊI ࡢ㞟ගࣞࣥࢬࢆ⏝࠸࡚ )LJ E ࡟♧ࡍࡼ࠺࡟ࢫ
࣏ࢵࢺᚄ ȝP ࡟㞟ගࡋࡓࠋ࣮ࣞࢨࡢฟຊࡣ : ࡜ࡋࠊ㟁ືࢫࢸ࣮ࢪୖ࡟㓄⨨ࡋࡓ PP ཌࡢ 686 ᇶᯈୖ࡟ 7L ⢊ᮎࢆཌࡉ  ȝP ࡟ᩜࡁᆒࡋࠊࡑࡇ࡬㞟ගࡋࡓ࣮ࣞࢨගࢆ↷ᑕࡋࠊ㛗ࡉ PP ࡢࣅ࣮ࢻࢆ㐀ᙧࡋࡓࠋࡲ
ࡓࠊ㟁ືࢫࢸ࣮ࢪࡢᤲᘬ㏿ᗘࡣ PPV ࡜ࡋࡓࠋ
ᐇ㦂࡛ࡣࠊ࣮ࣞࢨ↷ᑕ୰ࡢࢫࣃࢵࢱࢆࣁ࢖ࢫࣆ࣮ࢻ࣓࡛࢝ࣛ᧜ᙳ࠾ࡼࡧ  ್໬ࡋࠊ࣮ࣞࢨ↷ᑕ୰ࡢࣇ࣮࣒ࣞࢆྜ
ᡂࠊⓑⰍ㡿ᇦࡢ๭ྜࢆ⟬ฟࡍࡿࡇ࡜࡟ࡼࡗ࡚ࢫࣃࢵࢱࡢⓎ⏕㔞ࢆホ౯ࡋࡓࠋ
)LEHUODVHU+LJK)RFXVLQJ$U
+DORJHQODPS+LJKVSHHG 
0HWDOYLGHRFDPHUD

7$052

D

/DVHULQWHQVLW\

6XEVWUDWH

EȝP
/RZ

(OHFWULF6WDJH
)LJ6FKHPDWLFGLDJUDPRIH[SHULPHQWDOVHWXS )LJ,PDJHVRIODVHUEHDPSURILOHZLWK,5ODVHUIRU7LIDEULFDWLRQD *DXVVLDQ E )ODWWRS

− 72 −



ᐇ㦂⤖ᯝ

 )LJ ࡟ᤲᘬ㏿ᗘ࡟ᑐࡍࡿࢫࣃࢵࢱࡢⓎ⏕㔞ࢆ♧ࡍࠋ࠸ࡎࢀࡢ᮲௳࡟࠾࠸࡚ࡶ࢞࢘ࢩ࢔ࣥࣅ࣮࣒࡜ẚ㍑ࡋ࡚ࣇࣛࢵࢺࢺࢵࣉࣅ࣮࣒࡛ࡣࢫࣃࢵࢱࡢⓎ⏕㔞ࡣᑡ࡞ࡃࠊᤲᘬ㏿ᗘࡢቑຍ࡟క࠸࢞࢘ࢩ࢔ࣥࣅ࣮࣒࡜ࣇࣛࢵࢺࢺࢵࣉࣅ
࣮࣒ࡢࢫࣃࢵࢱⓎ⏕㔞ࡢᕪࡣ኱ࡁࡃ࡞ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ)LJ ࡟ᤲᘬ㏿ᗘ PPV ࡟࠾࠸࡚࢞࢘ࢩ࢔ࣥࣅ࣮࣒࡜
ࣇࣛࢵࢺࢺࢵࣉࣅ࣮࣒ࢆࡑࢀࡒࢀ⏝࠸࡚ࣁ࢖ࢫࣆ࣮ࢻ࣓࡛࢝ࣛ᧜ᙳࡋࡓ㝿ࡢྜᡂ⏬ീࢆ♧ࡍࠋ࢞࢘ࢩ࢔ࣥࣅ࣮࣒
࡛ࡣⓑⰍ㡿ᇦࡣ⣙ 㸣࡛࠶ࡗࡓࡀࠊࣇࣛࢵࢺࢺࢵࣉ࡛ࡣ⣙ ࡜ࠊࣇࣛࢵࢺࢺࢵࣉࣅ࣮࣒ࡣ࢞࢘ࢩ࢔ࣥࣅ࣮࣒࡟
ẚ࡭࡚ࢫࣃࢵࢱࡢⓎ⏕㔞ࡀ⣙ ῶᑡࡋࡓࠋ
:KLWHDUHD 






*DXVVLDQ)ODWWRS






6FDQQLQJVSHHG PPV

)LJ5HVXOWVLQDUHDVRIZKLWHDUHDVRIVSDWWHU
D

E


)LJ:KLWHDUHDRIVSDWWHUDWVFDQVSHHGRIPPV D *DXVVLDQ E )ODWWRS



⤖ㄽ

 ᮏ◊✲࡛ࡣࠊ㑅ᢥⓗ࣮ࣞࢨ⁐⼥ἲ࡟ࡼࡿ 7L ࡢ㐀ᙧ࡟࠾࠸࡚ࣅ࣮࣒ࣉࣟࣇ࢓࢖ࣝࡢไᚚ࡟ࡼࡿࢫࣃࢵࢱࡢᢚไ
ࢆヨࡳࡓࠋࡑࡢ⤖ᯝࠊࣅ࣮࣒ࣉࣟࣇ࢓࢖ࣝࡀࣇࣛࢵࢺࢺࢵࣉ࡟࠾࠸࡚ࠊ࢞࢘ࢩ࢔ࣥ࡜ẚ㍑ࡋ࡚ࢫࣃࢵࢱࡢⓎ⏕㔞ࢆ᭱኱⣙ పῶྍ⬟࡞஦ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ
ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝 − 73 −

࣮ࣞࢨຍᕤ࡟ࡼࡿࢱࣥࢢࢫࢸࣥ⾲㠃ᖹ⁥໬ᢏ⾡ࡢᇶ♏᳨ウᅜ❧◊✲㛤Ⓨἲே ≀㉁࣭ᮦᩱ◊✲ᶵᵓ ᵓ㐀ᮦᩱ◊✲ࢭࣥࢱ࣮
Ώ㑔ㄔࠊⲡ㔝ṇ኱⥴ゝ
᰾⼥ྜ⅔ࢲ࢖ࣂ࣮ࢱࡢࣉࣛࢬ࣐ᑐྥᮦ࡜ࡋ࡚᭱⾲ ࣮ࣞࢨ᮲௳
᭷ຊೃ⿵࡛࠶ࡿࢱࣥࢢࢫࢸࣥ㸦:㸧࡟࠾࠸࡚ࡣࠊࢲ
࢖ࣂ࣮ࢱ⇕㈇Ⲵ㸦(/0㸧ࡸࣉࣛࢬ࣐ࢹ࢕ࢫࣛࣉࢩࣙ
ࣥ➼࡟࠾ࡅࡿ⇕ὶ᮰ࡢ✺Ⓨⓗቑ኱ࡸࠊࣉࣛࢬ࣐ࡢ᥋ゐ࡟ࡼࡿᒁᡤ⾲㠃⁐⼥ࠊ࠶ࡿ࠸ࡣ෌⤖ᬗ➼࡟ࡼࡿ๭ࢀࡸᒁᡤⓗ࡞ᑍἲኚ໬➼ࡢᦆ⪖ࡀ⏕ࡌᚓࡿࠋࡇࡢࡼ࠺࡞ᦆ⪖ࡣ㍍ᚤ࡞࡛ࣞ࣋ࣝ࠶ࡗ࡚ࡶᒁᡤⓗ࡞࣮ࣜࢹ࢕ࣥࢢ࢚ࢵࢪ࡜࡞ࡿྍ⬟ᛶࡀ࠶ࡾࠊᦆ⪖ຍ㏿࡜ࣉࣛࢬ࣐㐠㌿࡟ᑐࡍࡿᙳ㡪ࡢᣑ኱ࡀᠱᛕࡉ
ࢀࡿࠋࡇࡢࡓࡵࠊ᪩࠸ẁ㝵࡛⿵ಟࢆྍ⬟࡜ࡍࡿᢏ⾡ࡢ㛤Ⓨࡀࠊཎᆺ⅔ࡢ✌ാ⋡࠾ࡼࡧ⤒῭ᛶ࡟ぢ㏻ࡋࢆ❧࡚ࡿୖ࡛㔜せ࡜࡞ࡿࠋࡑࡇ࡛ᮏࣉࣟࢪ࢙ࢡ
ࢺ࡛ࡣࠊձ኱Ẽࣉࣛࢬ࣐⁐ᑕἲ㸦$36㸧࡟ࡼࡿ⫗┒ࠊղᦶ᧿ᨩᢾฎ⌮㸦)63㸧ࠊ࠾ࡼࡧճ࣮ࣞࢨຍ
ᕤ࡟ࡼࡿ⾲㠃௙ୖࡆ࡜࠸࠺ྛࣉࣟࢭࢫࢆ⤌ࡳྜࢃࡏࠊࢱࣥࢢࢫࢸࣥ⾲㠃ࡢ⿵ಟࢆྍ⬟࡜ࡍࡿせ⣲ᢏ⾡ࡢ㛤Ⓨࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋࡇࡇ࡛ࡣࠊ࣮ࣞࢨ࡟
ࡼࡿࢱࣥࢢࢫࢸࣥຍᕤ࠾ࡼࡧ⾲㠃ᖹ⁥໬࡟ࡘ࠸࡚
ࡢᇶ♏᳨ウࢆ⾜ࡗࡓࠋ㸰ᐇ㦂᪉ἲਦ লࣰࣻ‫ܧָޭݩ‬ໝࣞਦࢱࣥࢢࢫࢸࣥᖹᯈ㸦⟬⾡ᖹᆒ㧗ࡉ6D PP㸧ࢆᑐ㇟࡟ࠊ㉸▷ࣃࣝࢫ࣮ࣞࢨ㸦7Lࢧࣇ࢓࢖࢔࣮ࣞ
D 
ࢨ㸦&\EHU/DVHU ♫〇,)5,7㸧㸧࠾ࡼࡧ㐃⥆Ⓨ᣺࣮ࣞࢨ㸦ࢹ࢕ࢫࢡ࣮ࣞࢨ㸧ࢆ⏝࠸࡚ࠊ࣮ࣞࢨ↷ᑕ᮲௳࡜ຍᕤ῝ࡉࡢ┦㛵࡟ࡘ࠸࡚ㄪᰝࡋࡓࠋᐇ㦂࡛ࡣࠊ኱㜰኱Ꮫ᥋ྜ◊ሯᮏ࣭బ⸨◊✲ᐊ࡟࡚ᵓ⠏ࡋࡓ↷ᑕᐇ㦂ගᏛ⣔ࢆ⏝࠸ࡓ㸦ᅗ 㸧ࠋ㉸▷ࣃࣝࢫ࣮ࣞࢨࡢᇶᮏἼ㛗ࠊࣃࣝࢫᖜཬࡧ⧞ࡾ㏉ࡋ࿘Ἴᩘࡣࠊ
ࡑࢀࡒࢀ QPࠊIV ཬࡧ N+] ࡛࠶ࡗࡓࠋຍ
ᕤⅬ࡟࠾࠸࡚  wP (L ࡢࣅ࣮࣒ᚄࢆ᭷ࡍࡿࣞ
࣮ࢨࣃࣝࢫ࡛࠶ࡾࠊࣅ࣮࣒ᚄࡣࣞࣥࢬࡢ↔Ⅼ㊥㞳E ࢆኚ࠼ࡿࡇ࡜࡛  wP ࠿ࡽ  wP ࡲ࡛ㄪᩚྍ⬟࡛࠶ࡗࡓࠋ㉸▷ࣃࣝࢫ࣮ࣞࢨ࡛ࡢᐃⅬ↷ᑕ࠾ࡼࡧᤲᘬヨ㦂ࡢᐇ㦂᮲௳ࢆ⾲  ࡟♧ࡍࠋᐇ㦂⤖ᯝ ᅗ  ࡟㉸▷ࣃࣝࢫ࣮ࣞࢨ࡛ࡢᐃⅬ↷ᑕヨ㦂࡟࠾ࡅࡿࠊ↷ᑕࣃࣝࢫ D ࠾ࡼࡧ࣮ࣞࢨ࣮ࣇ࣮࢚ࣝࣥࢫ
E ࡜ࠊຍᕤ῝ࡉࡢ┦㛵ࢆ♧ࡍࠋ↷ᑕࣃࣝࢫᩘ࡜ຍᕤ῝ࡉࡣ⥺ᙧ࡞㛵ಀ࡟࠶ࡗࡓࠋࣇ࣮࢚ࣝࣥࢫࢆኚ
໬ࡉࡏࡿࡇ࡜࡛ࠊ༢఩ࣃࣝࢫᙜࡓࡾࡢຍᕤ⋡ࢆไ ᅗ ᐃⅬ↷ᑕヨ㦂࡛ࡢ D ↷ᑕࣃࣝࢫ࠾ࡼࡧ
ᚚࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡾࠊࣇ࣮࢚ࣝࣥࢫ࡜↷ᑕࣃ
E ࣮ࣞࢨ࣮ࣇ࣮࢚ࣝࣥࢫ࡜ຍᕤ῝ࡉࡢ┦㛵

− 74 −

D 

E 



ᅗ  ᐃⅬ↷ᑕヨ㦂࡟࠾ࡅࡿࠊ↷ᑕࣃࣝࢫ㸦D㸧࠾ࡼࡧ࣮ࣞࢨ࣮ࣇ࣮࢚ࣝࣥࢫ㸦E㸧࡜ຍᕤ῝ࡉࡢ┦㛵ࣝࢫᩘ࡟ࡼࡾࠊ࣮ࣞࢨຍᕤ῝ࡉࢆ௵ព࡟ไᚚ࡛
ࡁࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋᅗ  ࡟ᤲᘬ↷ᑕヨ㦂๓ᚋ࡛ࡢࢱࣥࢢࢫࢸࣥᯈ⾲㠃෗┿ࠊ࠾ࡼࡧᤲ
ᘬ㏿ᗘ࡜ࣇ࣮࢚ࣝࣥࢫ࡟ᑐࡍࡿ㠃⢒ࡉࡢኚ໬ࢆ
♧ࡍࠋࢱࣥࢢࢫࢸࣥᖹᯈࡢึᮇ⢒ࡉ࡜ྠ⛬ᗘࡢ㠃⢒ࡉࢆ⥔ᣢࡋࡓຍᕤࡀྍ⬟࡛࠶ࡾࠊࡲࡓࠊࣇ
࣮࢚ࣝࣥࢫ࡟ࡼࡿ⢒ࡉࡢኚ໬ࡣᑠࡉ࠸ࡇ࡜ࡀ♧ࡉࢀࡓࠋࣇ࣮࢚ࣝࣥࢫࡢไᚚ࡟ࡼࡗ࡚ࠊ⢒ࡉࢆ⥔ᣢࡋࡓࡲࡲ㝖ཤ㔞ࡢไᚚࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ
᫂ࡽ࠿࡜࡞ࡗࡓࠋᅗ ࡟ࡣࠊ㉸▷ࣃࣝࢫ࣮ࣞࢨ࡜㐃⥆Ⓨ᣺࣮ࣞࢨ࡛ࡢࠊ༢఩࢚ࢿࣝࢠ࣮㎶ࡾࡢຍᕤ㔞࡟ࡘ࠸࡚ࡲ࡜ࡵࡿࠋ༢఩࢚ࢿࣝࢠ࣮ᙜࡓࡾࡢ㝖ཤຍᕤ㔞࡟ࡘ࠸࡚ࡣࠊ㉸▷ࣃࣝࢫ࣮ࣞࢨ࡟ඃ఩ᛶࡀㄆࡵ
ࡽࢀࡓࡀࠊ᫬㛫ຠ⋡ࡢほⅬ࡛ࡣ㐃⥆Ⓨ᣺࣮ࣞࢨࡢ᪉ࡀ㧗ຠ⋡࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡲࡓࠊᅗ ࡟ࡣࠊ஧ࡘࡢගᏛ⣔࡟ࡘ࠸࡚ࠊᵝࠎ࡞࣮ࣞࢨ᮲௳࡜㠃⢒ࡉࡢ┦㛵࡟ࡘ࠸࡚ࣉࣟࢵࢺࡋ
࡚࠸ࡿࠋ㉸▷ࣃࣝࢫ࣮ࣞࢨࡣ⾲㠃⢒ࡉࢆ⥔ᣢࡋࡓࡲࡲ㝖ཤຍᕤࢆ㐍ࡵࡿࡇ࡜ࡀྍ⬟࡛࠶ࡗࡓࡀࠊ㐃⥆Ⓨ᣺࣮ࣞࢨ࡛ࡣ㠃⢒ࡉࡀᝏ໬ࡍࡿ⤖ᯝ࡜࡞ࡗࡓࠋࡇࡢࡇ࡜࠿ࡽࠊ㐃⥆Ⓨ᣺࣮ࣞࢨࡣ┦ᑐⓗ࡟㧗㏿࡞ຍᕤࡀྍ⬟࡛࠶ࡿࡀࠊᖹ⁥໬ࡢほⅬ࡛ࡣ㉸▷ࣃࣝࢫ࣮ࣞࢨࡢ᪉ࡀࠊప࠸㠃⢒ࡉࢆ⥔ᣢࡍࡿࡇ࡜ࡀ࡛ࡁࠊࡑࢀࡒࢀ୍㛗୍▷࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡲࡓࠊ⌧≧࡛ࡣ : ᮦࡢຍᕤ࡟ࡣ㛗᫬㛫ࡢ↷ᑕࡀᚲせ࡜࡞ࡿࡇ࡜࠿ࡽࠊ௒
ᚋࡼࡾ㐺ࡋࡓᢏ⾡ࡢ㛤Ⓨࡀᮇᚅࡉࢀࡿࠋ
ᮏ◊✲ࡣ᰾⼥ྜ◊✲ᡤ ཎᆺ⅔◊✲㛤Ⓨඹྠ◊✲㸦1,)6+'$)㸧ࡢᨭ᥼ࢆཷࡅࡓࠋࡲࡓࠊ
ᮏ◊✲ࡣ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤࠕ᥋ྜ⛉Ꮫඹྠ฼⏝࣭ඹྠ◊✲ᣐⅬࠖඹྠ◊✲ဨไᗘࢆ฼⏝ࡋ࡚ᐇ᪋ࡉࢀࡓࠋ
㸦ඹྠ◊✲ศ㔝㸸࣮ࣞࢨࣉࣟࢭࢫᏛศ㔝㸧

− 75 −ਦ Յ޽ްི͹ർֳᅗ ࣮ࣞࢨ↷ᑕ᮲௳࡜㠃⢒ࡉࡢẚ㍑

⤯⦕⭷࡬ࡢᕼᅵ㢮ඖ⣲ࡢᑟධ࡟ࡼࡿ +6L&⤯⦕⭷⏺㠃࡬ࡢ❅⣲ᑟධ㐣⛬ࡢ⪃ᐹᡤᒓ  ᮾி኱Ꮫ᪂㡿ᇦ๰ᡂ⛉Ꮫ◊✲⛉≀㉁⣔ᑓᨷẶྡ                 ዪᒇ ᓫ㸯㸬┠ⓗ+6L& ࡣ 6L ࡟௦ࢃࡿࣃ࣮࣡ࢹࣂ࢖ࢫ⏝ᮦᩱ࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࠋࡑࡢ⌮⏤ࡣ㸪+6L& ࡣࣂࣥࢻࢠࣕࢵࣉ
ࡀ኱ࡁࡃ㸪⤯⦕◚ቯ㟁⏺ࡀ኱ࡁ࠸ࡓࡵ㸪㧗⪏ᅽ࡛ప᢬ᢠ࡞ࢹࣂ࢖ࢫࡀసࢀࡿࡓࡵ࡛࠶ࡿࠋࡋ࠿ࡋ㸪ᐇ㝿ࡢࢹࣂ࢖ࢫࡢ࢜ࣥືస᫬ࡢ᢬ᢠࡣᮦᩱࡢ≀ᛶ࠿ࡽồࡵࡽࢀࡿ⌮ㄽ್ࡼࡾ㧗࠸್࡜࡞ࡗ࡚࠸ࡿ>@ࠋࡇࢀࡣ㸪+
6L&6L2 ⏺㠃࡟኱㔞ࡢ⏺㠃Ḟ㝗ࡀᏑᅾࡋ㸪⏺㠃Ḟ㝗ࡀᙧᡂࡍࡿ‽఩࡟㟁Ꮚࡀᤕ⋓ࡉࢀࡿࡓࡵ࡛࠶ࡿࠋ12 㞺ᅖẼୗ࡛ࡢ࢔ࢽ࣮ࣝ࡟ࡼࡾ +6L&6L2 ⏺㠃࡟❅⣲ཎᏊࢆᑟධࡍࡿࡇ࡜ࡀ⏺㠃‽఩ࡢపῶ࡟᭷ຠ࡛࠶ࡿࡇ࡜ࡀ
▱ࡽࢀ࡚࠾ࡾ㸪❅⣲㔞ࡀከ࠸࡯࡝⏺㠃‽఩ᐦᗘపῶ࡟ຠᯝࡀ࠶ࡿ>@ࠋࡋ࠿ࡋ㸪❅⣲ᑟධ㔞ࢆ᭱኱໬ࡍࡿ᪉⟇ࡣ࠸ࡲࡔ᫂ࡽ࠿࡟࡞ࡗ࡚࠸࡞࠸ࠋࡲࡓ㸪❅⣲ᑟධ㔞ࡣ⤯⦕⭷ࡢ✀㢮࡟ᙳ㡪ࢆཷࡅࡿྍ⬟ᛶࡀ࠶ࡿࡀ㸪༑ศ࡟᳨ウࡉࢀ࡚࠸࡞࠸ࠋࡑࡇ࡛ᙜ◊✲ᐊ࡛ࡣ㸪୍⯡࡟⤯⦕⭷ᮦᩱ࡜ࡋ࡚⏝࠸ࡽࢀ࡚࠸ࡿ 6L2 ࢆᕼᅵ㢮㓟໬≀࡛࠶ࡿ <2 ࡸ &H2[ ࡟⨨ࡁ᥮࠼ࡿࡇ࡜࡛㸪+6L&⤯⦕⭷⏺㠃࡬ࡢ❅⣲ᑟධ㔞ࡀ࡝ࡢࡼ࠺࡟ኚ໬ࡍࡿࡢ࠿ࢆ᳨ウࡋ
࡚࠸ࡿ>@ࠋ<2 ࡸ &H2[ ࢆ +6L& ୖ࡟ሁ✚ᚋ࡟ 12 ࢔ࢽ࣮ࣝࢆᐇ᪋ࡍࡿ࡜㸪+6L& ⾲㠃ࡀ㓟໬ࡋ࡚ 6L2 ࡀᡂ㛗ࡋ㸪6L2 ࡜ < ࡸ &H ࡀΰྜࡋࡓ⤯⦕⭷ࢆᙧᡂࡍࡿࠋࡇࡢ࡜ࡁ㸪; ⥺ග㟁Ꮚศග ;36 ࡟ࡼࡿᐃ⤖ᯝ࠿ࡽ㸪

⤯⦕⭷୰ࡢ < ࡸ &H ࡢ⃰ᗘศᕸࡣ⭷ཌ᪉ྥ࡟ᑐࡋ࡚ᆒ୍࡛ࡣ࡞࠸ࡇ࡜ࡀ♧၀ࡉࢀ࡚࠸ࡿࠋࡑࡇ࡛ᮏඹྠ◊✲ㄢ㢟࡛ࡣ㸪⤯⦕⭷ࢆኚ᭦ࡋࡓ㝿ࡢ❅⣲ᑟධ㐣⛬ࢆ⌮ゎࡍࡿࡓࡵ࡟㸪㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾 7(0 ཬࡧ࢚ࢿࣝࢠ࣮ศ
ᩓᆺ ; ⥺ศගἲ ('6 ࢆ⏝࠸࡚⤯⦕⭷୰ࡢ < ࡸ &H ศᕸࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆヨࡳࡓࠋ㸰㸬◊✲᪉ἲ
࢚ࣆࢱ࢟ࢩࣕࣝᒙ Q ᆺ㸪ࢻ࣮ࣉ⃰ᗘࠥîFP ࢆ᭷ࡍࡿ +6L&  ᇶᯈࢆ +) Ὑίࡋࡓᚋ㸪 ✀㢮ࡢヨᩱࢆ௨ୗࡢᡭ㡰࡛స〇ࡋࡓࠋࡲࡓࠊ12 ࢔ࢽ࣮ࣝࡣ㸪121  ࡢẚ⋡ࡢ 12 ΰྜ࢞ࢫ㞺ᅖẼୗ࡟࠾࠸࡚ &࡛  ᫬㛫ᐇ᪋ࡋࡓࠋ
ヨᩱ  +6L& ᇶᯈୖ࡟㟁Ꮚ⥺⵨╔ἲ (% ࡛ <2 ࢆ⭷ཌ QP ሁ✚ࡋࡓࠋヨᩱ  +6L& ᇶᯈୖ࡟ 5) ࢫࣃࢵࢱࣜࣥࢢ࡛ &H2[ ࢆ⭷ཌ QP ሁ✚ࡋࡓࠋヨᩱ  +6L& ᇶᯈୖ࡟ (% ࡛ <2 ࢆ⭷ཌ QP ሁ✚ᚋ㸪12 ࢔ࢽ࣮ࣝࢆᐇ᪋ࡋࡓࠋ
ヨᩱ  +6L& ᇶᯈୖ࡟ 5) ࢫࣃࢵࢱࣜࣥࢢ࡛ &H2[ ࢆ⭷ཌ QP ሁ✚ᚋ㸪12 ࢔ࢽ࣮ࣝࢆᐇ᪋ࡋࡓࠋ㸱㸬⤖ᯝࡲࡎ㸪)LJ ࡟ヨᩱ  ࡜ヨᩱ  ࡢ᩿㠃 7(0 ീࢆ♧ࡍࠋ

E

D

<2㸪&H2[ ࡜ࡶ࡟ 6L& ᇶᯈୖ࡟ᆒ୍࡟ᡂ⭷ࡉࢀ࡚࠸ࡿ
ࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ)LJ ࡟㸪ヨᩱ  ࡢ᩿㠃 7(0 ീ࡜㸪
('6 ศᯒ࡟ࡼࡾᚓࡽࢀࡓ < ศᕸࢆ♧ࡍࠋ6L& ᇶᯈୖ࡟ᙧᡂࡉࢀࡓ⤯⦕⭷ࡢ୰࡟ⓑ࡜ࢢ࣮ࣞࡢ㡿ᇦࡀ☜ㄆࡉࢀ< 2  

&H2[

6L&

6L&

ࡓࠋࡲࡓࠊⓑ࠸㡿ᇦࡣ 6L2㸪ࢢ࣮ࣞࡢ㡿ᇦࡣ < ࡜ 6L ࢆ࡜ࡶ࡟ྵࡴ < ࢩࣜࢣ࣮ࢺ࡛ᵓᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿
ࡗࡓࠋࡇࡢࡇ࡜࠿ࡽ㸪12 ࢔ࢽ࣮ࣝ㐣⛬࡛㸪6L& ࡢ㓟໬࡟ࡼࡾᙧᡂࡉࢀࡓ 6L2 ࡜ሁ✚ࡋࡓ <2 ࡀΰྜࡋࡓ <− 76 −)LJ D  ヨᩱ  ࡜ E  ヨᩱ  ࡢ᩿㠃 7(0 ീࢩࣜࢣ࣮ࢺ࡜㸪< ࢆྵࡲ࡞࠸ 6L2 ࡢ  ࡘࡢ㡿ᇦ࡟ศ㞳ࡋ࡚࠸ࡿᵝᏊࡀほED< ␪Ў␘ඊʠ

ࡉࢀࡓࠋࡲࡓ㸪< ࡣ୺࡟⤯⦕⭷ࡢୖ㒊࡟ศᕸࡋ࡚࠸ࡿࡇ࡜࠿ࡽ㸪12 ࢔ࢽ࣮ࣝࡢึᮇ
㐣⛬࡛ < ࢩࣜࢣ࣮ࢺࡀᙧᡂࡉࢀ㸪ࡑࡢᚋ 6L2 ࡀᡂ㛗ࡋ࡚ࡶ㸪< ࡣ⭷඲య࡟ᣑᩓࡏࡎ㸪< ࢩࣜࢣ࣮ࢺࡣ⤯⦕⭷ࡢୖ㒊࡛ࡑࡢᵓ㐀ࢆಖࡗ࡚࠸ࡿ࡜᥎
ࡓ㸪< ࡣ 6L&⤯⦕⭷⏺㠃௜㏆࡛ࡣほ

6L&

ࡉࢀࡿࠋࡲ

ࡉࢀ࡞࠿ࡗࡓࡓ

ࡵ㸪< ࡣ 6L&⤯⦕⭷⏺㠃௜㏆࡟Ꮡᅾࡋ࡚࠸ࡿ࡜ࡋ࡚ࡶ
௨ୗࡢᑡ㔞࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ)LJ ࡟㸪ヨᩱ QP%)

QP<.

)LJ ヨᩱ  ࡢ D  ᩿㠃 7(0 ീ࡜ E < ศᕸࡢ᩿㠃 7(0 ീ࡜㸪('6 ศᯒ࡟ࡼࡾᚓࡽࢀࡓ &H ศᕸࢆ♧ࡍࠋ6L2 ࡢ㡿ᇦ࡟ຍ࠼࡚㸪⤯⦕⭷ࡢ୍㒊ศ࡟㯮࠸㡿ᇦࡀ☜ㄆࡉࢀ㸪('6 ศᯒࡢ⤖ᯝࡼࡾࡇࡢ㡿ᇦࡣ &HE

D

࡜ 6L ࢆ࡜ࡶ࡟ྵࡴ &H ࢩࣜࢣ࣮ࢺ࡛࠶ࡿࡇ࡜ࡀศ࠿
ࡗࡓࠋᚑࡗ࡚㸪)LJ ࡟♧ࡋࡓヨᩱ  ࡜ྠᵝ࡟㸪12 ࢔ࢽ࣮ࣝ㐣⛬࡛ &H2[ ࡜ 6L2 ࡀΰྜࡋࡓ &H ࢩࣜࢣ࣮ࢺ
࡜㸪&H ࢆྵࡲ࡞࠸ 6L2 ࡢ  ࡘࡢ㡿ᇦ࡟ศ㞳ࡋ࡚࠸ࡿᵝᏊࡀほࡉࢀࡓࠋ୍᪉㸪ヨᩱ  ࡛ࡣ < ࡀ⤯⦕⭷ࡢ

6L&ୖ㒊࡟ᗈࡃศᕸࡋ࡚࠸ࡓࡢ࡟ᑐࡋ࡚㸪ヨᩱ  ࡛ࡣ &HQP

ࡀᒁᡤⓗ࡟ศᕸࡋ࡚࠸ࡓࠋࡇࡢ < ࡜ &H ࡢศᕸࡢ㐪࠸ࡣ㸪⤯⦕⭷ࢆኚ࠼ࡓ㝿ࡢ❅⣲ᑟධᣲືࡢ㐪࠸ࢆㄝ᫂ࡍ

%QP&)LJ ヨᩱ  ࡢ D  ᩿㠃 7(0 ീ࡜ E &H ศᕸࡿ  ࡘࡢせᅉ࡜࡞ࡿ࡜⪃࠼ࡽࢀࡿࠋࡲࡓ㸪ヨᩱ  ࡜ヨᩱ  ࡟ඹ㏻ࡍࡿⅬ࡜ࡋ࡚㸪12 ࢔ࢽ࣮ࣝ࡟ࡼࡗ࡚⏺㠃ࡢ⢒ࡉࡀቑ኱ࡍࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡇࢀࡣ㸪⤯⦕⭷࡟ %D ࡞࡝ᵝࠎ࡞␗✀ඖ⣲ࢆᑟධࡋࡓሙྜ࡛ࡶඹ㏻ࡋ࡚
ほࡉࢀࡿ⌧㇟>@࡛࠶ࡾ㸪< ࡸ &H ࢆᑟධࡋࡓሙྜ࡛ࡶほࡉࢀࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ

㸲㸬⤖ㄽ+6L&⤯⦕⭷ᵓ㐀ࡢ᩿㠃 7(0 ほᐹ࡜ ('6 ศᯒ࡟ࡼࡗ࡚㸪12 ࢔ࢽ࣮ࣝ๓ᚋ࡛ࡢ⤯⦕⭷୰ࡢ < ཬࡧ &H ࡢศᕸࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋ12 ࢔ࢽ࣮ࣝ๓ࡣ㸪< &H ࡜ࡶ࡟ 6L& ᇶᯈୖ࡟ᆒ୍࡟ศᕸࡋ࡚࠸ࡓࠋ12 ࢔ࢽ࣮ࣝᚋ࡛
ࡣ㸪< ࡣ⤯⦕⭷ࡢୖ㒊࡛ < ࢩࣜࢣ࣮ࢺ⤯⦕⭷ࢆᙧᡂࡋ㸪6L&⤯⦕⭷⏺㠃ཬࡧ 6L2 ୰࡟ࡣ࡯࡜ࢇ࡝ศᕸࡋ࡚࠸
࡞࠸ࡇ࡜ࡀศ࠿ࡗࡓࠋ୍᪉㸪&H ࢆ㐺⏝ࡋࡓሙྜ࡛ࡶ 12 ࢔ࢽ࣮ࣝᚋ࡟ &H ࢩࣜࢣ࣮ࢺ࡜ 6L2 ࡢ㡿ᇦ࡟ศ㞳ࡍࡿᵝᏊࡀほࡉࢀࡓࡀ㸪< ࡢሙྜ࡜ẚ࡭࡚ࡼࡾ &H ࡀ೫ࡗ࡚Ꮡᅾࡋ࡚࠸ࡓࠋᮏ◊✲࡟ࡼࡾᚓࡽࢀࡓᡂᯝࡣ㸪

6L& ࢆ⏝࠸ࡓࣃ࣮࣡ࢹࣂ࢖ࢫ⏝⤯⦕⭷ᮦᩱࢆ 6L2 ࠿ࡽ <2 ཬࡧ &H2[ ࡟⨨ࡁ᥮࠼ࡓ᫬ࡢ +6L&⤯⦕⭷⏺㠃࡬ࡢ❅⣲ᑟධ㐣⛬ࢆ⌮ゎࡍࡿୖ࡛㔜せ࡞⤖ᯝ࡛࠶ࡾ㸪➨  ᅇᛂ⏝≀⌮Ꮫ఍᫓ᏘᏛ⾡ㅮ₇఍࡟࡚Ⓨ⾲ࡋࡓ>@ࠋ㸳㸬ཧ⪃ᩥ⊩>@7.LPRWRDQG+:DWDQDEH$SSO3K\V([SUHVV  >@-5R]HQHWDO,(((7UDQV(OHFWURQ'HYLFHV  >@ ୰ᓥ ዪᒇ ႐ከ ➨  ᅇᛂ⏝≀⌮Ꮫ఍᫓ᏘᏛ⾡ㅮ₇఍S$  >@$&KDQWKDSKDQHWDO-SQ-$SSO3K\V  㸦ඹྠ◊✲ศ㔝㸸⁐᥋ᶵᵓᏛศ㔝㸧

− 77 −

ҡࡒֆ໚͹ඏࡋߑଆ͹؏ࡱɼ඲Ճ‫;ٶ‬੏‫ޜ‬࢐Կ෼ൔ಍ରοϡϋϩ࢐Կ෼ઊԓຜۜ଒ຜͶ͕͜Ζҡझં߻ֆ໚͹ൕԢ੓‫;ٶ‬ඏࡋߑଆ͹մੵࠅཱི‫֋ڂݜ‬൅๑ਕ ෼࣯ʀࡒྋ‫ߑؽڂݜ‬ਫ਼ీ໪ य़ऴɼ௫ӿ Ҳਖ ໪ద
'\QDPLF UDQGRP DFFHVVPHPRU\ '5$0 ͲͺɼඏࡋԿͶ൒͑ΫϡϏεν༲ྖ͹ఁԾΝཊ੏ͤΖͪΌͶɼ ͯ͹ΫϡϏεν͹໚੷Ν୉͚͘Ͳ͘Ζ  ࣏‫ߑݫ‬ଆ͹ &XS&\OLQGHU ‫ ;ٶܗ‬3LOODU ‫͏༽͗ܗ‬ΔΗͱ͏ΖɽΫϡϏενߑଆͺ 7L1 Ծ෨ు‫ۅ‬ΫϡϏενઊԓຜ7L1 ৏෨ు‫ۅ‬͹ PHWDOLQVXODWRUPHWDO 0,0 ͗༽͏ΔΗɼͨ͹ߖߑଆ͹਄͠෱͹ΠηϘέφർ͗f ͶΉͲ౺ୣ͢ͱ͏Ζɽͨ͹ͪΌͶɼ7L1 ు‫ۅ‬ຜ‫;ٶ‬ΫϡϏενઊԓຜΝߖ͹ଈปɼఊΉͲ‫࣯ۋ‬Ͷࡠ੣Ͳ͘Ζ੔ຜٗढ़͗චਤͲ͍Εɼͨ͹ٗढ़ͳ͢ͱ‫ࢢݬ‬૜଱੷๑ $WRPLFOD\HUGHSRVLWLRQ$/' ͗༽͏ΔΗͱ͏ΖɽҲൢͶɼ'5$0 ࡠ੣ϕϫιηͶ‫ڒ‬༲͠ΗΖ࠹୉Իౕͺ ˈͲ͍Ζɽ͞ΗΉͲɼΫϡϏενઊԓຜͳ͢ͱͺɼΠϠϩϓΟη͵ $O2 ૜Ͳ͹Ϩʖέుླྀ͹ఁ‫݃;ٶݰ‬ধԿ =U2 ૜͹߶༢ుིԿΝૄͮͪ
=U2$O2=U2 ͹  ૜ߑଆ͗‫ݗ‬౾͠Ηͱ͏Ζɽ‫ࡑݳ‬ɼ=U2 ૜͹ߍ͵Ζ߶༢ుིԿ͗๮ΉΗɼझʓ͹‫ݫ‬ોΝ =U2૜΃χʖϒϱήͤΖٗढ़͗੟ΞͶ‫͠ڂݜ‬Ηͱ͏Ζɽ$/' ͶΓΖχʖϒϱή๏๑ͳ͢ͱͺɼ=U2 ૜ͳχʖϒϱή૜Ν੷૜ͪ͢ϧϝϋʖφߑଆ͹‫ܙ‬੔͗‫ݗ‬౾͠Ηͱ͏Ζɽͨ͞Ͳɼຌ‫Ͳڂݜ‬ͺɼχʖϒϱή૜ͳ͢ͱ +I2 ૜Ͷ஥໪͢ͱɼ$/' Ͳ =U2 P +I2 Q ͹ϧϝϋʖφߑଆຜΝ੔ຜ͢ͱɼPQ ർͳ݃ধ੓ɼు‫ـ‬ಝ੓͹‫ܐؖ‬Ͷͯ͏ͱɼ7L1 =U2 P +I2 Q7L1 ͹ 0,0 ΫϡϏενΝࡠ੣͢ͱ௒΄ͪɽ =U2 P +I2 Q ຜ͹݃ধ੓ɼPQ ർΝร͓ͪ৖߻͹ =U+I ૌ੔ർ‫= ;ٶ‬U2 P +I2 Q ຜͳ 7L1 ৏Ծు‫ۅ‬͹ֆ໚Ͷͯ͏ͱɼ୉ࡗ୉ָં߻‫༙ॶݜ‬͹ಃգ‫ܗ‬ుࢢ‫ݨ‬ඏ‫ں‬ʤೖຌుࢢ੣ -(0ʥͲ 7(0 7UDQVPLVVLRQ(OHFWURQ 0LFURVFRSH  ؏ࡱ‫;ٶ‬Φϋϩάʖ෾ࢆ‫ ; ܗ‬ત෾ޭ๑ʤ('6ʥͶΓΖ =Uɼ+Iɼ2ɼ7L ‫ ;ٶ‬1 ‫ݫ‬ો͹໚෾ੵ݃ՎΝ‫خ‬Ͷ٠࿨ͪ͢ɽ
̐ɿ‫ڂݜ‬๏๑ύ΢χʖϕ͵ S6L ‫خ‬൚৏΃ɼηϏρνϨϱή๑Ͳ 7L1 Ծ෨ు‫ۅ‬Ν੔ຜͪ͢ɽକ͏ͱɼ=U&S ‫ݬ‬ྋͳ +2 ࢐ԿࡐΪηΝ༽͏ͪ $/' ๑Ͳ =U2 ૜‫ ;ٶ‬+I&S ‫ݬ‬ྋͳ +2 ࢐ԿࡐΪηΝ༽͏ͪ $/' ๑Ͳ +I2 ૜Ν੔ຜͪ͢ɽ
͞͞Ͳɼ =U2 P +I2 Q ϧϝϋʖφຜ͹ PQ ർͺɼ֦ʓ͹ $/' γ΢έϩΝร͓ͱ௒੖ͪ͢ɽPQ ɼ ‫ٶ‬;  ͳ =U Ϩρο͵ૌ੔ർͲɼຜ޲  QP Ν 7L1 Ծ෨ు‫ۅ‬৏΃੔ຜͪ͢ɽ$/' ͹੔ௗԻౕͺ ˈͳͪ͢ɽ࠹
‫ޛ‬ͶɼηϏρνϨϱή๑Ͳ 7L1 ৏෨ు‫ۅ‬Ν੔ຜ͢ͱɼ0,0 ΫϡϏενΝࡠ੣ͪ͢ɽ
̑ɿ݃ՎͳΉͳΌ
઎ͥɼ$VJURZQ ຜ͹݃ধߑଆͶͯ͏ͱɼമຜ ;5' ෾ੵΝ༽͏ͱ௒΄ͪɽPQ ɼ ‫  ;ٶ‬͹͏ͥΗ͹ຜͶ͕͏ͱ΍ɼД͗༁ ˅෉ۛͶϔϫʖχ͵ϒʖέ͗೟ΌΔΗɼ=U2 ͹߶༢ుི͵ 7HWUDJRQDO ૮ɼ
2UWKRUKRPELF ૮‫& ;ٶ‬XELF ૮͹͏ͥΗ͖͹૮Ͳ͍Ζ͞ͳ͗෾͖ͮͪɽఁ༢ుི͵ 0RQRFOLQLF ૮ͺ೟ΌΔΗ͵͖ͮͪɽ͞ΗΓΕɼ‫غ‬ଶ௪ΕͶɼˈ͹ $/' ๑Ͳɼ߶༢ుི૮͖Δ੔ຜΝ‫ܙ‬੔Ͳͪ͘ɽକ͏ͱɼ͞͹ $VJURZQ ຜ͹න໚ϧϓϋηͶͯ͏ͱɼ$)0 ؏ࡱͪ͢ɽPQ ɼ ‫  ;ٶ‬ຜ͹ 506 ஍ͺɼ֦ʓ͹༁ ɼ ‫;ٶ‬ Νࣖͪ͢ɽ͞ΗΔ͹ຜ͹න໚ͺηϞʖθͲ͍Εɼ݃ধԿͶ൒͑ຜ͹ԞದͺಝͶͺ೟ΌΔΗ͵͖ͮͪɽ
PQ ɼ ‫  ;ٶ‬͹ $VJURZQ ຜ͹இ໚଀ΓΕɼ͏ͥΗ͹ຜ΍֪ࢢϏνʖϱ͗೟ΌΔΗඏ݃ধͲߑ੔͠
Ηͱ͏Ζࣆ͗෾͖ͮͪɽ͞͹݃Վͺɼമຜ ;5' ͹݃ՎΝྒྷ͚ൕӫ͢ͱ͏ΖɽS6L7L1$VJURZQ =U2  +I2 ϧϝϋʖφຜ͹ D 7(0ɼ E =Uɼ F +Iɼ G 2ɼ H 7L ‫ ;ٶ‬1 ‫ݫ‬ો͹ ('6 ໚෾ੵ͹݃ՎΝਦ̏Ͷࣖͤɽ7L1 Ծ෨− 78 −

D 7(0  QP

E =U

%)

  QP

F +I

=U /

  QP

G 2

+I /

  QP

H 7L

I 1

  QP

2 .

7L .

  QP1 .

ਦ 7L1 =U2  +I2  ϧϝϋʖφຜ͹ D 7(0ɼ E =Uɼ F +Iɼ G 2ɼ H 7L ‫ ;ٶ‬I 1 ‫ݫ‬ો͹ ('6 ໚෾ੵు‫= ͳۅ‬U2  +I2  ϧϝϋʖφຜ͹֦ߑ੔‫ݫ‬ોͺ͘Η͏Ͷ෾཯͠Ηͱ͕Εɼ7L1 Ծ෨ు‫= ͳۅ‬U2  +I2  ϧϝϋʖφຜ͹ֆ໚Ͳ͹૮‫ࢆ֨ޕ‬ͺ೟ΌΔΗ͵͖ͮͪɽ࣏ͶɼS6L7L1$VJURZQ =U2  +I2  ϧϝϋʖφຜ͹
D 7(0ɼ E =Uɼ F +Iɼ G 2ɼ H 7L ‫ ;ٶ‬1 ‫ݫ‬ો͹ ('6 ໚෾ੵ͹݃ՎΝਦ  Ͷࣖͤɽ͞͹ PQ  ͹ຜ΍ಋ༹Ͷɼ7L1 Ծ෨ు‫= ͳۅ‬U2  +I2  ϧϝϋʖφຜ͹֦ߑ੔‫ݫ‬ોͺ͘Η͏Ͷ෾཯͠Ηͱ͕Εɼ7L1 Ծ෨ు‫ͳۅ‬=U2  +I2  ϧϝϋʖφຜ͹ֆ໚Ͳ͹૮‫ࢆ֨ޕ‬ͺ೟ΌΔΗ͵͖ͮͪɽ

D 7(0  QP

E =U

%)

  QP

F +I

=U /

  QP

G 2

+I /

 QP

H 7L

2 .

  QP

I 1

7L .

  QP1 .

ਦ 7L1 =U2  +I2  ϧϝϋʖφຜ͹ D 7(0ɼ E =Uɼ F +Iɼ G 2ɼ H 7L ‫ ;ٶ‬I 1 ‫ݫ‬ો͹ ('6 ໚෾ੵ͞͞Ͳɼ֦ࢾྋͲɼ =U2 P +I2 Q ϧϝϋʖφຜ͹ঙ͵͚ͳ΍ ͖ॶҐ৏Ν ('6 ໚෾ੵ͢ͱɼ=U =U+I ർΝ‫ٽ‬Όͪɽਦ̑ͺɼ$/'͹ PQ ർͳ ('6 ໚෾ੵ͖Δ‫ٽ‬ΌΔΗͪ =U2  +I2  ϧϝϋʖφຜ͹=U =U+I ർ͹‫ܐؖ‬Νࣖͤɽࣰ‫ݩ‬υʖνͺ௜ત‫ܐؖ‬ΝຮଏͤΖࣆΓΕɼ$/' Ͳ =U2 ૜‫ ;ٶ‬+I2 ૜͹ $/' γ΢έϩർΝร͓ΖࣆͲɼ=U2 P +I2 Q ϧϝϋʖφຜ͹ =U =U+I ർΝ௒੖Ͳ͘Ζࣆ͗෾͖ͮ
ͪɽ
7L1 =U2 P +I2 Q7L1 ͹ 0,0 ΫϡϏενΝ༽͏ͱɼ͞͹ $V
JURZQ ຜ͹༢ుི‫;ٶ‬ઊԓഃշుѻΝ௒΄ͪɽI N+] Ͳ͹༲ྖుѻ=U =U+I UDWLRRIILOP DW଎ఈΓΕɼుѻ 9 Ͳ‫ٽ‬ΌΔΗͪ PQ ɼ ‫  ;ٶ‬ຜ͹༢ుིͺɼ֦ʓɼ༁ ɼ ‫͍Ͳ  ;ٶ‬Εɼ+I ૌ੔ർ͗ଁՅͤΖͶॊͮͱ༢ుིͺఁԾͪ͢ɽΉͪɼుླྀుѻ଎ఈΓΕɼుླྀ $FP Ͷ͕͜ΖPQ ɼ ‫  ;ٶ‬ຜ͹ઊԓഃշుֆͺɼ֦ʓɼɼ ‫ ;ٶ‬$/'PQUDWLR  








$VJURZQ    =U =U+I UDWLR DWਦ $/'PQγ΢έϩർͳ=U2 P +I2 Qϧϝϋʖφຜ͹=U =U+I ർ

09FP ͳ +I ૌ੔ർ͗ଁՅͤΖͶॊͮͱଁ୉ͪ͢ɽ͞ΗΓΕɼ+I χʖϕͶΓͮͱ༢ుིͺఁԾͪ͗͢ɼҲ๏ɼଳѻͺ޴৏ͪ͢ཀྵ༟ͳ͢ͱɼ=U2 ͹݃ধ੓͗‫͚ؖک‬༫͢ͱ͏Ζͳߡ͓ͱ͏Ζɽʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁ༻ં‫ָߑؽ‬෾໼ʥ− 79 −

۞Θ͑ͶశՅͪ͢ 1L ͗Θ͑෉੓Ͷ‫ͤ·ٶ‬Ӫ‫ڻ‬౨ք୉ָ޽ָ‫ڂݜ‬ՌԢ༽ཀྵԿָ઒ߊ
‫ྀీי‬ղɼీ౤ߌɼෳᆻ৶ਕɼ஧‫ݡ‬༓༐ɼՅ౽५໷ɼ‫ୖٸ‬༅߀ ໪ద۞Θ͑ͺ‫ؽ‬փద੓࣯Ͷ༑Ηͱ͏ΖͪΌɼητϱϪη߱͹Θ͑෉Ͷ༽͏ΔΗͱ͏ΖɽҲ๏ɼητϱϪη߱ͶଲͤΖͷΗ͗ྒྷ޹Ͳͺ͵͏͞ͳ͗໲ୌ఼ͳࢨఢ͠Ηͱ͏Ζɽͨ͞Ͳɼ1L Ν $J&X Θ͑ࡒͶశՅͤΖ͞ͳͲͷΗ੓Νրવ࢘͢༽͠ΗΖ৖߻͗ଡ͏ɽ͖͢͢͵͗Δɼ1L ΝశՅͤΖ͞ͳͲͷΗ੓͗޴৏ͤΖϟΩωθϞͺາմ໎Ͳ͍Ζɽͨ͞Ͳɼຌ‫Ͳڂݜ‬ͺɼ686/%$JD Θ͑ࡒΝ‫ݽ‬ӹ‫ڠ‬ଚ྘Ү஦ͲΘ͑෉ͪ͢ࢾ‫ݩ‬ฤ͹இ໚ૌ৭Ν৆ࡋͶմੵ͢ɼΘ͑෉Իౕ͗Θ͑ࡒ஦͹ 1L ͹‫ڏ‬ಊͶ‫ͤ·ٶ‬Ӫ‫ڻ‬ͶߡࡱΝՅ͓Ζɽ̐ɿ‫ڂݜ‬๏๑฾ࡒͺΨʖητψ΢φ‫ܧ‬ητϱϪη߱Ͳ͍Ζ 686/ɼΘ͑ࡒͺ %$JD Ν༽͏ͪɽ
 ࢾ‫ݩ‬ฤͳΘ͑෉ড়݇  Θ͑෉෨ં߻෨͹இ໚ૌ৭Ν؏ࡱͤΖͪΌͶɼ‫ ٱ‬7 ࣊‫ݩࢾܗ‬ฤΝ༽͏ͪɽࢾ‫ݩ‬ฤໝࣞਦΝਦ  ͶࣖͤɽΘ͑෉ͺਇ‫ۯ‬࿏Ν༽͏ͱਇ‫ۯ‬ฉҕ‫ـ‬ԾͲߨͮͪɽΘ͑෉Իౕͺ ˈɼˈɼˈɼ
ˈͳઅఈͪ͢ɽΘ͑෉࣎ؔͺસͱ  ෾ɼতԻଐౕͺ .PLQͳͪ͢ɽΘ͑ࡒ͹‫ܙ‬ସͺഫয়Θ͑ࡒͲ͍Ζɽਦ  ͹Γ͑ͶΘ͑ࡒΝઅ஖ͪ͢ɽϓϧρέηͺ࢘༽͢ͱ͏͵͏ɽਦ  ࢾ‫ݩ‬ฤໝࣞਦ

ɿ(30$ ෾ੵ  Θ͑෉͜෨இ໚ϝέϫૌ৭Ν؏ࡱ͢ɼ(30$ Ν༽͏ɼΘ͑෉෨͹ֆ໚ൕԢ૜͹‫ݫ‬ો෾ੵΝ෾ੵͪ͢ɽ؏ࡱഔིΝ  ഔͶઅఈ͢ɼֆ໚ൕԢ૜͹໚෾ੵΝߨͮͪɽಝͶɼ֦Θ͑෉ԻౕͲ͹ 1L ͹‫ڏ‬ಊΝ௒ࠬͪ͢ɽ
̑ɿ݃Վͳߡࡱ  ϓΡϪρφ෨฾ࡒֆ໚͹ൕԢͶ৆ࡋ͵‫ݗ‬౾ΝՅ͓͓ΖͪΌͶɼֆ໚Ν‫ݫ‬ો෾ੵͪ͢ɽਦ  Ͷ ˈͲΘ͑෉ͪ͢Θ͑෉෨ֆ໚͹‫ݫ‬ોϜρϒϱήɼਦ  Ͷ ˈͲΘ͑෉ͪ͢Θ͑෉෨ֆ໚͹‫ݫ‬ોϜρϒϱήΝࣖͤɽˈ͹ %6(
଀͖ΔɼϓΡϪρφ෨฾ࡒֆ໚Ͷೳօ৯૮ͳപ৯૮֮͗೟͠Ηͪɽೳօ৯૮ͺϓΡϪρφ෨͹օ৯૮ʤ&X1L ‫༻ݽ‬ର૮ʥͳͺҡ͵Ζ૮ͳ൓இͪ͢ɽֆ໚͹പ৯૮ͺɼϓΡϪρφ෨͹പ৯૮ͳͺҡ͵Εɼ$J Ϩρο૮Ͳ͍ͮͪɽօ৯૮ͺ &X1L ‫༻ݽ‬ରͲ͍Ζ͞ͳ֮͗೟͠Ηͪɽ  ˈ͹ %6( ଀͖ΔɼϓΡϪρφ෨฾ࡒֆ໚ۛ๥Ͷͺɼօ৯ॵধͳೳօ৯૮ͳപ৯૮Ͳߑ੔͠Ηͱ͏ͪɽ‫ݫ‬ો෾ੵ݃Վ͖Δɼപ৯૮ͺ $J ‫༻ݽ‬ର૮Ͳ͍Εɼօ৯૮ͺ ˈ͹৖߻ͳಋ༹Ͷɼ&X1L ‫༻ݽ‬ର૮Ͳ͍ͮͪɽೳօ৯૮
ͺ 1L)H&U ‫༻ݽ‬ର૮Ͳ͍Ζɽ&X1L ‫༻ݽ‬ର஦Ͷ 1L)H&U ‫༻ݽ‬ର͗ੵड़ͤΖ͞ͳ֮͗೟͠Ηͪɽ  ਦ  Ͷɼ‫ݫ‬ોϜρϒϱή͖ΔಚΔΗ֦ͪԻౕͲ͹ 1L)H&U ‫༻ݽ‬ର͹รԿΝࣖͤɽˈҐԾͲͺ 1L)H&U ߻ۜ૮͗‫ܙ‬੔͠Ηͱ͏Ζ͗ɼˈҐ৏Ͳͺ 1L)H&U ‫༻ݽ‬ର͗ϓΡϪρφଈ΃Ңಊ͢ͱ͏ͪɽҲ๏ɼϓΡϪρφ஦ͶΆͳΞʹ 1L ͗‫ݗ‬ड़͠Ηͱ͏͵͏͹ͲɼΘ͑෉࣎Θ͑ࡒ஦͹ 1L ͗ֆ໚ͶҢಊ͢ɼ༻༧Θ͑ࡒ͹ͷΗͳֆ໚ൕԢͶӪ‫ڻ‬ͪ͢ͳߡ͓ΔΗͪɽ− 80 −


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ᅗ  ႏ࡛ࢁ࠺௜ࡋࡓ⏺㠃ࡢᅗ  ႏ࡛ࢁ࠺௜ࡋࡓ⏺㠃ࡢඖ⣲࣐ࢵࣆࣥࢢศᯒ

ඖ⣲࣐ࢵࣆࣥࢢศᯒ

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ᅗ  ඖ⣲࣐ࢵࣆࣥࢢ࠿ࡽᚓࡽࢀࡓྛ ᗘ࡛ࡢ 1L ྜ㔠┦ࡢኚ໬ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁ༻ં‫ָߑؽ‬෾໼ʥ
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− 81 −

ⓎἻ┤ᚋࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘᥋ྜ᫬ࡢ X ⥺ࢆ⏝࠸ࡓẼᏍᣲືࡢ㠀◚ቯほᐹ⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛㕥ᮌᕴ㸪༙㇂⚞ᙪ㸪ኳ㇂㈼ඣ
1㸬┠ⓗ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡣከࡃࡢẼᏍࢆ᭷ࡍࡿከᏍ㉁ᮦᩱ࡛࠶ࡿࡓࡵ㸪㍍㔞࡛࠶ࡾ㸪⾪ᧁ྾཰ᛶ㸪᩿⇕ᛶ㸪㜵㡢ᛶ࡟ඃࢀ࡚࠸ࡿࠋ
ࡇࡢࡼ࠺࡞ᛶ㉁࠿ࡽ㸪⮬ື㌴ࡢᵓ㐀㒊ᮦ࡬ᑟධࡍࡿࡇ࡜࡛㸪㌴యࡢ㍍㔞໬࡟ࡼࡿ⇞㈝ࡢྥୖࡸ⾪ᧁ྾཰ᛶ࡟ࡼࡿᏳ඲ᛶࡢྥୖࡢ
୧❧ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋ
ࡋ࠿ࡋᐊ ࡛࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢຍᕤࢆ⾜࠺࡜ෆ㒊ࡢẼᏍࡀࡘࡪࢀ㸪ୖグࡢᛶ㉁ࡀኻࢃࢀ࡚ࡋࡲ࠺ࠋ
㐣ཤࡢ◊✲࠿ࡽⓎἻࡋࡓ┤ᚋࡢ㧗 ≧ែ࡛࠶ࡿ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡣ⁐⼥ࡋࡓ㔠ᒓࡢረᛶὶື࡟ࡼࡾ㸪࣮࣮ࣟࣛ࡟ࡼࡗ࡚ᖹ㠃ᙧ≧࡟ຍᕤࢆࡋ࡚ࡶᅽຊ࡟ࡼࡿ⦓ᐦ໬ࢆ㜵ࡂ㸪࣏࣮ࣛࢫᵓ㐀ࡀ⥔ᣢ࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗ࡚࠸ࡿࠋࡲࡓ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ
๓㥑య࡛࠶ࡿࣉ࣮ࣜ࢝ࢧࢆⓎἻࡉࡏࡿࡇ࡜࡛࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆస〇ࡍࡿࣉ࣮ࣜ࢝ࢧἲ࡛ࡣ኱ࡁ࡞ヨᩱࢆసࡿࡢࡣᅔ㞴࡛࠶ࡾ㸪኱ࡁ࡞ヨᩱࡢస〇᪉ἲ࡜ࡋ࡚ᑠࡉ࡞࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ྠኈࡢ᥋ྜࡀᣲࡆࡽࢀࡿࠋᙧ≧௜୚࡜ྠᵝ࡟᥋ྜࡶⓎἻ┤ᚋࡢ㧗≧ែ࡛࠶ࢀࡤᐜ᫆࡟⾜࠺ࡇ࡜ࡀ࡛ࡁࡿ࡜⪃࠼ࡽࢀࡿࠋࡉࡽ࡟㸪ᙉᗘ࡞࡝ࡢ≉ᛶࡀ␗࡞ࡿ 2 ✀㢮ࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆྠ᫬
࡟ⓎἻࡉࡏ㸪᥋ྜࡍࡿࡇ࡜࡛㸪⏝㏵࡟ྜࢃࡏ࡚ᙉᗘࡸ⾪ᧁ྾཰ᛶ࡟ඃࢀࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢస〇ࡀྍ⬟࡟࡞ࡿࡇ࡜ࡀᮇᚅ
ࡉࢀࡿࠋࡇࢀࡽࡢࡇ࡜࠿ࡽ㸪ᮏ◊✲࡛ࡣ 2 ✀㢮ࡢⓎἻ┤ᚋࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆ 2 ࡘࡢࣟ࣎ࢵࢺ࢔࣮࣒࡛୧ഃ࠿ࡽᣳࡳ㎸ࡴࡼ࠺࡟ᅽ⦰ࡍࡿࡇ࡜࡛࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢᛶ㉁ࢆᦆ࡞ࢃࡎ࡟ᒣᆺࡢᙧ≧ࢆ௜୚ࡋ㸪ྠ᫬࡟࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ᥋ྜࡶヨࡳࡓࠋࡲࡓ㸪ᚓࡽࢀࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢෆ㒊ࡸ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ྠኈࡢቃ⏺㠃࡟ᑐࡋ࡚ X ⥺ࢆ⏝࠸࡚㏱㐣ື⏬ࡢ᧜ᙳࢆ⾜࠸㸪ⓎἻ᫬ࡢẼᏍᣲືࢆほᐹࡋ㸪ྠ✀ࡢ᥋ྜ࡜␗✀ࡢ᥋ྜ࡟࠾࠸࡚࡝ࡢࡼ࠺࡞㐪࠸ࡀ࠶ࡿࡢ࠿☜ㄆࡋࡓࠋ
2㸬◊✲᪉ἲ
ᐇ㦂࡟౑⏝ࡍࡿ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡣᦶ᧿ᨩᢾ᥋ྜ࡟ࡼࡗ࡚స〇ࡋࡓࣉ࣮ࣜ࢝ࢧࢆຍ⇕ࡍࡿࡇ࡜࡛స〇ࡋࡓࠋẕᮦࡢ㔠ᒓᯈ࡟ࡣ ADC12㸦Al-Si-Cu⣔㸧ྜ㔠ࢲ࢖࢝ࢫࢺᯈᮦ࡜ A1050㸦ᕤᴗ⏝⣧࢔࣑ࣝࢽ࣒࢘㸧ᅽᘏᮦ㸪ⓎἻ๣࡟ࡣỈ⣲໬ࢳࢱࣥ㸦TiH2㸧㸪ẼᏍᙧែᏳᐃ๣࡟ࡣ࢔࣑ࣝࢼ㸦Al2O3㸧ࢆ⏝࠸㸪ᩓᕸ㔞ࡣࡑࢀࡒࢀᨩᢾ㡿ᇦ㉁㔞࡟ᑐࡋ࡚ 1 mass%㸪5 mass%࡜ࡋࡓࠋࣉࣜ࢝
࣮ࢧࡢᑍἲࡣ 2 ✀㢮࡜ࡶ 15 mm  15 mm  6 mm ࡢ┤᪉య࡜ࡋ㸪ࢭ࣑ࣛࢵࢡࢫࡢୖ࡟୪࡭࡚タ⨨ࡋࡓࠋ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡀࡼࡾୖ᪉࡟ⓎἻࡍࡿࡼ࠺ࣉ࣮ࣜ࢝ࢧࡢ୧⬥࡟ࡣ┤᪉యࡢ࣮ࣞࣝࢆ⨨࠸ࡓࠋග※࡜ࣉ࣮ࣜ࢝ࢧ⾲㠃ࡢ㊥㞳ࡣ 80 mm ࡜ࡋࡓࠋᮏᐇ㦂࡛ࡣẚ㍑ⓗ▷᫬㛫࡛࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘
ࢆⓎἻࡉࡏࡽࢀࡿࡇ࡜࠿ࡽࣁࣟࢤࣥࣛࣥࣉ࡟ࡼࡿගຍ⇕ࢆ᥇⏝ࡋࡓࠋගຍ⇕⿦⨨ࡢᴫ␎ᅗࢆ Fig.1 ࡟♧ࡍࠋᙧ≧௜୚ࢆ⾜࠺⿦⨨ࡢᴫ␎ᅗࢆ Fig.2 ࡟♧ࡍࠋᐇ㦂ࡣ ADC12 ྠኈࡢ᥋ྜ㸦Sample Ϩ㸧࡜ ADC12 ࡜ A1050 ࡢ᥋ྜ㸦Sample
ϩ㸧ࡢ 2 ㏻ࡾࢆ⾜ࡗࡓࠋDobot 〇ࡢ Dobot Magician ࢆࣟ࣎ࢵࢺ࢔࣒̿࡜ࡋ࡚౑⏝ࡋ㸪ⓎἻ┤ᚋࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆ
2 ྎࡢࣟ࣎ࢵࢺ࢔࣮࣒ࡢ㛫࡟タ⨨ࡋ㸪Fig.2 ࡢࡼ࠺࡟ඛ➃࡟㖡Წࢆಖᣢࡉࡏࡓࣟ࣎ࢵࢺ࢔࣮࣒ࢆື࠿ࡍࡇ࡜࡛ᙧ≧௜୚࡜᥋ྜࢆ⾜ࡗࡓࠋA1050 ࡣ ADC12 ࡜ẚ࡭࡚ᅛ┦⥺ ᗘ㸪ᾮ┦⥺ ᗘࡀ㧗࠸ࡓࡵ㸪୧ࣉ࣮ࣜ࢝ࢧࢆྠ᫬࡟ຍ⇕ࡍࡿ࡜㸪A1050
ࡀ ADC12 ࡼࡾࡶ㐜ࢀ࡚ⓎἻࡍࡿࠋࡑࡇ࡛ A1050 ࡢࣉ࣮ࣜ࢝

− 82 −

ࢧ࡟ࡣࣈࣛࢵࢡࢺࢼ࣮ࢆሬᕸࡍࡿࡇ࡜࡛㸪ࡼࡾගࢆ྾཰ࡍࡿࡼ࠺
࡟ࡋ㸪ⓎἻࢆ᪩ࡵࡉࡏ࡚ᐇ㦂ࢆ⾜ࡗࡓࠋࡇࡢ᫬ࡢ࣏࣮ࣛࢫ࢔࣑ࣝ
ࢽ࣒࢘ෆ㒊ࡢẼᏍᣲືࢆ X ⥺࡟ࡼࡿ㏱㐣ື⏬ࢆ᧜ᙳࡋ㸪㠀◚ቯほᐹࡋࡓࠋࡲࡓ㸪ᐇ㦂ᚋ㸪X ⥺ CT ࢆ⏝࠸࡚ᚓࡽࢀࡓヨᩱࡢ᩿㠃ࡢほᐹࡶ⾜ࡗࡓ㸬3㸬ᐇ㦂⤖ᯝ
Fig.3 ࡟ᚓࡽࢀࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢእほ(Fig.3 (a), (b))࡜ X⥺ CT ⏬ീ (Fig.3(c), (d))ࢆ♧ࡍࠋ(b), (d)ࡢṇ㠃࠿ࡽྑഃࡢ࣏࣮ࣛࢫ
࢔࣑ࣝࢽ࣒࢘ࡀ A1050 ࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࡛࢘࠶ࡿࠋ࣏࣮ࣛࢫ
࢔࣑ࣝࢽ࣒࢘ࡢ୧ഃ࠿ࡽ㖡Წࢆᢲࡋᙜ࡚ࡿࡇ࡜࡟ࡼࡗ࡚ᒣᆺࡢᙧ
≧ࢆ௜୚ࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋSample Ϩࡢእほࢆぢࡿ࡜ᒣᆺࡢᙧ≧ࡀ௜୚࡛ࡁ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋࡲࡓ㸪X ⥺ CT ⏬ീࢆぢࡿ࡜ୗ㠃࡟ቃ⏺⥺ࡀぢࡽࢀࡿࡀ㸪ࡑࡢ௚ࡢሙᡤ࡛ࡣ᥋ྜ࡛ࡁ࡚࠸ࡿࡇ࡜
ࡀศ࠿ࡿࠋ୍᪉㸪Sample ϩ࡛ࡣ A1050 ࡢࣉ࣮ࣜ࢝ࢧࡣ ADC12 ࡢࣉ࣮ࣜ࢝ࢧ࡟ẚ࡭㸪༑ศ࡞኱ࡁࡉࡲ࡛ⓎἻࡋࡁࡗ࡚࠾ࡽࡎ㸪㖡Წ࡟ࡼࡿ᥋ྜࡣ୙༑ศ࡛࠶ࡿࡇ࡜ࡀศ࠿ࡿࠋእほࡶෆ㒊ࡶቃ⏺㠃ࡀ᫂☜࡟⌧ࢀ࡚࠾ࡾ㸪ẼᏍࡀ⦓ᐦ໬ࡋ࡚࠸ࡿ㒊ศࡶከࡃࡳࡽࢀࡿࠋ
ࡇࢀࡣ㸪ࣈࣛࢵࢡࢺࢼ࣮ࢆ⏝࠸࡚ⓎἻࢆ᪩ࡵࡓ⤖ᯝ㸪ADC12 ࡼࡾࡶ A1050 ࡀඛ࡟ⓎἻࡋࡓࡇ࡜࡟ࡼࡾຍ⇕㐣ከ࡜࡞ࡾ࢞ࢫᢤࡅࡀⓎ⏕ࡋ㸪཰⦰ࡀぢࡽࢀࡓࡓࡵ ADC12 ࡜᥋ྜࡍࡿࡇ࡜࡞ࡃෆ㒊࡟ࡢࡵࡾࡇࡴࡼ࠺࡞ᙧ࡟࡞ࡗࡓࡇ࡜ࡀཎᅉ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋFig.4
࡟ᙧ≧௜୚᫬ࡢẼᏍᣲືࢆ♧ࡍࠋ⏬ീ୧➃࡟ぢ࠼ࡿ㯮࠸෇ᰕ≧ࡢࡶࡢࡀ㖡Წ࡛࠶ࡿࠋSample Ϩࢆぢࡿ࡜㯮୸࡛♧ࡋࡓቃ⏺⥺ࡀᅽ⦰ࡍࡿ࡟ࡘࢀ࡚㓟໬⿕⭷ࡀ◚ࢀ㸪᥋ྜࡉࢀ࡚࠸ࡃᵝᏊࡀศ࠿ࡿࠋࡑ
ࢀ࡟ᑐࡋ Sample ϩࡣᅽ⦰ᚋࡶቃ⏺⥺ࡀ᫂☜࡟ほᐹ࡛ࡁ㸪A1050
ࡣᅽ⦰ࡀ㐍ࡴ࡟ࡘࢀ࡚⦓ᐦ࡟࡞ࡗ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋADC12 ࡣẼᏍᙧែࢆಖࡗࡓࡲࡲᅽ⦰࡛ࡁ࡚࠸ࡿࡇ࡜࠿ࡽ㸪ᮏᐇ㦂࡛ࡣ
A1050 ࡢᡂᙧ࡟㐺ࡋࡓ ᗘ࡛ࡣ࡞࠿ࡗࡓࡇ࡜ࡀ⪃࠼ࡽࢀࡿࡓࡵ㸪௒ᚋࡢ◊✲࡛ࡣ A1050 ࡢᡂᙧ࡟㐺ࡋࡓ ᗘࢆᶍ⣴ࡋ࡚࠸ࡃࡇ࡜ࡀᚲせ࡛࠶ࡿࠋ4. ⤖ゝ
ᮏᐇ㦂࡛ࡣⓎἻ┤ᚋࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘᥋ྜ᫬ࡢ X ⥺ࢆ⏝࠸ࡓẼᏍᣲືࡢ㠀◚ቯほᐹ࡟ࡼࡗ࡚,௨ୗࡢ⤖ゝࢆᚓࡓࠋ(1) 2 ࡘࡢ ADC12 ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ୧ഃ࠿ࡽ㖡Წࢆᢲࡋᙜ࡚ࡿࡇ࡜࡛ᙧ≧௜୚࡜᥋ྜࢆྠ᫬࡟⾜࠼ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
(2) ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ᥋ྜ᫬㸪ෆ㒊ࡢẼᏍࡣᔂࢀࡎ㸪㓟໬⿕⭷ࡀᚎࠎ࡟◚ࢀ࡚࠸ࡁ㸪᥋ྜࡉࢀ࡚࠸ࡃࡇ࡜ࡀศ࠿ࡗࡓࠋ

ㅰ㎡
ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 83 −

ᦶ᧿ᅽ᥋࡟ࡼࡿⓎἻ࢔࣑ࣝࢽ࣒࢘࡜⇕ྍረᛶᶞ⬡ࡢ␗✀ᮦᩱ᥋ྜ⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛ᒣᮏ㞝ኴ㸪༙㇂⚞ᙪ㸪ኳ㇂㈼ඣ
1㸬┠ⓗⓎἻ࢔࣑ࣝࢽ࣒࢘㸦࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘㸧ࡣෆ㒊࡟ከᩘࡢẼᏍࢆ᭷ࡍࡿ࢔࣑ࣝࢽ࣒࡛࢘࠶ࡾ㸪ከᏍ㉁ᵓ㐀࡟ࡼࡾ㍍㔞ᛶ㸪⾪ᧁ྾཰ᛶ㸪㜵㡢ᛶ㸪᩿⇕ᛶ➼࡟ඃࢀ࡚࠸ࡿࠋ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆᕤᴗⓗ࡟฼⏝ࡍࡿࡓࡵ࡟㸪ࡇࢀࡽࡢ≉ᚩࢆ⏕࠿ࡋ࡞ࡀࡽ௚
ࡢᮦᩱ࡜ࡢే⏝ࢆ⪃࠼ࡿࡇ࡜ࡀᚲせ୙ྍḞ࡛࠶ࡿࠋ㐣ཤࡢ◊✲࡟࠾࠸࡚㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡜⇕ྍረᛶᶞ⬡ࡢ࣏࣮ࣜ࢝࣎ࢿ
࣮ࢺ㸦PCTA㸧ࡢᦶ᧿ᅽ᥋ࡀヨࡳࡽࢀ࡚࠸ࡿࠋࡇࢀࡣᦶ᧿ᅽ᥋᫬ࡢᦶ᧿⇕࡛ PCTA ࢆ㌾໬ࡉࡏ㸪ࡑࢀࡀ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢẼᏍෆ㒊࡟ධࡾ㎸ࡴࡇ࡜࡛㸪࢔࣮ࣥ࢝ຠᯝ࡟ࡼࡾ୧⪅ࢆ᥋ྜࡍࡿࡶࡢ࡛࠶ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ᦶ᧿ᨩᢾἲ࡛స〇ࡋࡓ࣏࣮ࣛࢫ
࢔࣑ࣝࢽ࣒࢘࡜ PCTA ࡢ␗✀ᮦᩱ᥋ྜࢆヨࡳࡿ࡜ඹ࡟㸪᥋ྜᚋࡢヨ㦂∦࡟ࡘ࠸࡚ X ⥺ CT ⿦⨨࡟ࡼࡿほᐹ࡜ᘬᙇヨ㦂ࢆ⾜࠺ࡇ࡜࡛㸪᥋ྜἲ࡜ࡋ࡚ࡢጇᙜᛶࢆホ౯ࡋࡓࠋ2㸬◊✲᪉ἲ
ࡲࡎ ADC12 ᯈᮦࢆ 2 ᯛ⏝ពࡋ㸪ᯈᮦࡢ㛫࡟ⓎἻ๣
㸦TiH2㸧
࡜ẼᏍᙧែᏳᐃ๣㸦Al2O3㸧ࢆᩓᕸࡋ㸪FSW ⿦⨨࡟ࡼࡾ⢊ᮎᩓᕸ㡿ᇦࡢᦶ᧿ᨩᢾࢆ⾜ࡗࡓࠋࡑࡢᚋ㸪⢊ᮎᩓᕸ㡿ᇦ࠿ࡽ㐺ᙜ࡞኱ࡁࡉ࡟ษࡾฟࡋࡓࣉ࣮ࣜ࢝ࢧࢆࣁࣟࢤࣥࣛࣥ
ࣉ࡟ࡼࡿගຍ⇕࡛ⓎἻࡉࡏ㸪㧗ࡉࡀ 10 mm ࡜࡞ࡿࡼ࠺࡟
ࣉࣞࢫᡂᙧࢆ⾜ࡗࡓࠋᚓࡽࢀࡓヨ㦂∦ࢆ Fig.1(a)࡟♧ࡍࠋ
ⓎἻᚋࡢヨ㦂∦ࡢ⾲㠃ࡣ⦓ᐦ࡛࠶ࡿࡓࡵ㸪ࣇࣛ࢖ࢫ┙࡟ࡼࡿษ๐࡛ෆ㒊ࡢẼᏍࢆ⾲㠃໬ࡉࡏࡿࡇ࡜࡛ Fig.1(b)ࡢࡼ࠺
࡞࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࢆᚓࡓࠋ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࢆ ‫׋‬16 mm㸪㛗ࡉ 100 mm
ࡢ㗰〇ࢶ࣮ࣝ࡟ᵓ㐀⏝᥋╔๣ࢆ⏝࠸࡚᥋╔ࡋ㸪ࣇࣛ࢖ࢫ┙ࡢ୺㍈࡟ᅛᐃࡋࡓࠋPCTA ࡣࣇࣛ࢖ࢫ┙ࡢࢸ࣮ࣈࣝ࡟୧㠃ࢸ࣮ࣉ࡜⢓╔ࢸ࣮ࣉ࡛ᅛᐃࡋࡓࠋ
ࡇࡢ࡜ࡁࡢᴫ␎ᅗࢆ Fig.2
࡟♧ࡍࠋ௨ୖࡢ‽ഛࡀ᏶஢ࡋࡓࡽ᥋ྜᐇ㦂ࢆ⾜ࡗࡓࠋࡇࡢ
㝿ࣇࣛ࢖ࢫ┙ࡢᅇ㌿ᩘࡣ 2000 rpm ࡜ࡋ㸪ᅇ㌿ࡋࡓ࣏࣮ࣛ
ࢫ࢔࣑ࣝࢽ࣒࢘ࡀ PCTA ࡟ゐࢀ࡚࠿ࡽ 50 ⛊࠿ࡽ 80 ⛊࠿ࡅᡭື࡛ 1 mm ᢲ㎸ࢇࡔࠋᢲ㎸ࡳ㔞ࡀ 1 mm ࡜࡞ࡗࡓ࡜ࡇࢁ
࡛ࣇࣛ࢖ࢫ┙ࡢᅇ㌿ࢆṆࡵᐇ㦂ࢆ⤊஢ࡋࡓࠋ࢖ࣥࢫࢺࣟࣥ 5582 ୓⬟ヨ㦂ᶵࢆ⏝࠸࡚᥋ྜᚋࡢヨ㦂∦ࡢᘬᙇヨ㦂ࢆ⾜ࡗࡓࠋᘬᙇ㏿ᗘࡣ 1 mm/min ࡜ࡋ㸪ヨ㦂∦ࡀ◚᩿ࡍࡿࡲ࡛⾜࠸㸪᭱኱ᘬᙇⲴ㔜ࢆᚓࡓࠋ3㸬ᐇ㦂⤖ᯝ
ᮏ◊✲࡛ᐇ㝿࡟᥋ྜࡋࡓヨ㦂∦ࢆ Fig.3 ࡟♧ࡍࠋFig.3(a)ࡣࢶ࣮ࣝഃ࠿ࡽぢࡓᅗ㸪Fig.3(b)ࡣ┿ᶓ࠿ࡽぢࡓᅗ㸪Fig.3(c)ࡣ PCTA ഃ
࠿ࡽぢࡓᅗ࡛࠶ࡿࠋᮏ◊✲࡛ࡣྠᵝࡢ᮲௳࡛ྜィ 7 ಶࡢヨ㦂∦ࢆస〇ࡋࡓࡀ㸪࠸ࡎࢀࡶྠᵝࡢ⤖ᯝࡀᚓࡽࢀࡓࠋ᥋ྜ㠃௜㏆ࡢ X− 84 −

⥺ CT ⏬ീࢆ Fig.4 ࡟♧ࡍࠋFig.4(a)ࡣ┿ᶓ࠿ࡽぢࡓᅗ㸪Fig.4(b)ࡣ PCTA ഃ࠿ࡽぢࡓᅗ࡛࠶ࡿࠋẼᏍෆ㒊ࡀ⅊Ⰽ࡟ᫎࡗ࡚࠸ࡿ
ࡇ࡜࡟ࡼࡾ㸪ẼᏍෆ㒊࡟㌾໬ࡋࡓ PCTA ࡀධࡾ㎸ࢇࡔࡇ࡜ࡀศ࠿ࡿࠋ
ᘬᙇヨ㦂ᚋࡢ◚᩿㠃ࢆ Fig.5 ࡟♧ࡍࠋFig.5(a)ࡣ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ഃ㸪Fig.5(b)ࡣ PCTA ഃ࡛࠶ࡿࠋ◚᩿ᙧែࡣ඲࡚ࡢ
ヨ㦂∦࡛ẕᮦ◚᩿ࡶࡋࡃࡣ୍㒊ẕᮦ◚᩿࡛࠶ࡗࡓࠋ◚᩿ᚋࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡜ PCTA ࡢቃ⏺㠃௜㏆ࢆࢹࢪࢱࣝ㢧ᚤ㙾࡛ほᐹࡋࡓ⤖ᯝࢆ Fig.6 ࡟♧ࡍࠋ▮༳ࡢ㒊ศ࡟ὀ┠ࡍࡿ࡜ẼᏍෆ㒊࡟ PCTA ࡀධࡾ㎸ࢇࡔᵝᏊ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡀẕᮦ◚᩿ࡋ࡚࠸ࡿᵝᏊࡀศ࠿ࡿࠋᘬᙇヨ㦂࡛ᚓࡽࢀࡓ᭱኱ᘬᙇⲴ㔜ࢆ㸪X ⥺ CT ⏬ീ࠿ࡽồࡵࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࡢ᥋ྜ㠃ࡢ㠃✚࡛㝖ࡍࡿࡇ࡜࡛ᚓࡓ᭱኱ᘬᙇᙉᗘ࡜ᢲ㎸ࡳ᫬㛫ࡢ㛵ಀࢆ Fig.7 ࡟♧ࡍࠋᶓ⥺࡛♧ࡋࡓࡶࡢࡣ㸪ᮏ◊✲࡛⏝࠸ࡓ࣏࣮ࣛࢫ࢔࣑ࣝ
ࢽ࣒࢘ヨ㦂∦ࢆ 5 ࡘ⏝ពࡋ࡚ྠᵝࡢ᮲௳࡛ᘬᙇヨ㦂ࢆ⾜࠸㸪ᚓࡽࢀࡓ᭱኱ᘬᙇᙉᗘࡢ᭱㧗್࡜᭱ప್ࢆ♧ࡋ࡚࠸ࡿࠋ
ࡇࢀ࡟ࡼࡾ㸪
඲࡚ࡢヨ㦂∦࡛ẕᮦᙉᗘ࡜ྠ➼ࡢ᥋ྜᙉᗘࡀᚓࡽࢀࡓ࡜⪃࠼ࡽࢀࡿࠋ
4. ⤖ゝᮏ◊✲࡛ࡣᦶ᧿ᅽ᥋࡟ࡼࡿⓎἻ࢔࣑ࣝࢽ࣒࢘࡜⇕ྍረᛶᶞ⬡ࡢ␗✀ᮦᩱ᥋ྜࢆヨࡳࡿ࡜ඹ࡟㸪᥋ྜᚋࡢヨ㦂∦࡟ࡘ࠸࡚ X ⥺CT ⿦⨨࡟ࡼࡿほᐹ࡜ᘬᙇヨ㦂ࢆ⾜࠺ࡇ࡜࡛௨ୗࡢ⤖ゝࢆᚓࡓࠋ1) ᦶ᧿ᅽ᥋࡟ࡼࡿⓎἻ࢔࣑ࣝࢽ࣒࢘࡜⇕ྍረᛶᶞ⬡ࡢ␗✀ᮦᩱ᥋ྜࡀྍ⬟࡛࠶ࡗࡓࠋ
2) ẼᏍෆ㒊࡟㌾໬ࡋࡓ PCTA ࡀධࡾ㎸ࡴࡇ࡜࡛᥋ྜࡀྍ⬟࡜࡞ࡗ࡚࠸ࡓࠋ3) ◚᩿ᙧែࡣẕᮦ◚᩿ཬࡧ୍㒊ẕᮦ◚᩿࡛࠶ࡾ㸪ẕᮦᙉᗘ࡜ྠ➼ࡢ᥋ྜᙉᗘࡀᚓࡽࢀࡓࠋ

ㅰ㎡
ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 85 −

ᦶ᧿ᨩᢾᢏ⾡ࢆά⏝ࡋࡓỈ⣲྾ⶶྜ㔠ࡢ㔞⏘໬ᆅ᪉⊂❧⾜ᨻἲே኱㜰⏘ᴗᢏ⾡◊✲ᡤ
ᮌඖ៞ஂ
1. ┠ⓗ
Ỉ⣲ࡣ㸪࣮࢝࣎ࣥࢽ࣮ࣗࢺࣛࣝ࠾ࡼࡧᣢ⥆ྍ⬟࡞㛤Ⓨ┠ᶆ㸦Sustainable development goals; SDGs㸧ࡢ㐩ᡂ࡟ྥࡅ࡚㸪ᡓ␎ⓗ࡟㔜せ࡞࢚ࢿࣝࢠ࣮࢟ࣕࣜ࢔࡛࠶ࡿ㸬Ỉ⣲྾ⶶྜ㔠ࡢ࢚ࢿࣝࢠ࣮ᐜ㔞ࡣ⌧⾜ࡢࣂࢵࢸ࣮ࣜࢆ෽ࡄ 1)㸬Ỉ⣲྾ⶶྜ㔠⢊ᮎࡢ୍⯡ⓗ࡞〇ἲ࡛࠶ࡿ࣮࣑࣎ࣝࣜࣥࢢࡣ㸪㛗᫬㛫ࢆせࡋ㧗ࢥࢫࢺ࡛࠶ࡾ㸪ởᰁ࠾ࡼࡧ㓟໬ࡢࣜࢫࢡࡀ㧗࠸࣎ࢺ࣒࢔ࢵࣉࣉࣟࢭࢫ࡛࠶ࡿ㸬୍᪉㸪Ỉ⣲྾ⶶྜ㔠ࡢࡼࡾᐇ⏝ⓗ࡞௦᭰〇ἲ࡜ࡋ࡚㸪ᙉࡦࡎࡳຍᕤ࡟ࡼࡿỈ⣲྾ⶶྜ㔠ࡢ⤖ᬗ⢏㉸ᚤ⣽໬࣭ࢼࣀ⤌⧊໬ࡀ㸪㏆ᖺὀ┠ࡉࢀጞࡵ࡚࠸ࡿ 2)㸬
ᮏ◊✲࡛ࡣ㸪⣧ Mg ཌᯈ࡟㑄⛣㔠ᒓࢆῧຍࡍࡿᦶ᧿ᨩᢾࣉࣟࢭࢫ㸦Friction Stir Processing: FSP㸧3) ࢆά⏝ࡋ㸪Ỉ⣲྾ⶶྜ㔠ࡢ㔞⏘໬࡟ྲྀࡾ⤌ࢇࡔ㸬ᐇ࠾ࡼࡧ⌮ㄽィ⟬࡟ࡼࡾྜ㔠⏕⏘㏿ᗘ࠾ࡼࡧ㟁ຊࢥࢫࢺࡢ

࣮࢜ࢲ࣮࢚ࢫࢸ࢕࣓࣮ࢩࣙࣥࢆ⾜࠸㸪ᚑ᮶ἲ㸦࣮࣑࣎ࣝࣜࣥࢢ: BM㸧࡜ẚ㍑ࡋࡓ㸬
2. ◊✲᪉ἲ
2.1 FSP ࡟࠾ࡅࡿ⏕⏘㏿ᗘ࠾ࡼࡧᾘ㈝㟁ຊ㔞

⾲ 1 FSP ᐇ㦂᮲௳ᐇ㦂᮲௳Case 1
ᮦᩱ
Mg/X1
Mg ᯈཌ (mm)10ࢶ࣮ࣝᑍἲ (mm)I25-I 8×8
ᨩᢾ㒊㉁㔞 (g)10.0ฎ⌮᫬㛫 (s)
288
┦ᙜࡦࡎࡳ
22

Case 2
FSP ࡢ⏕⏘㏿ᗘ࠾ࡼࡧ㟁ຊࢥࢫࢺࡣᐇ㦂ⓗ࡟ホ
Mg/X2౯ࡋࡓ㸬኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ FSW3 ྕᶵࢆ౑⏝40
ࡋ㸪⾲ 1 ࡢ FSP ᮲௳࡟࡚ᯈཌ 10 mm ࠾ࡼࡧ 40 mm
I 60-I 19×36
ࡢ⣧ Mg ࡟⣙ 6 at.%ࡢ㑄⛣ඖ⣲㸦X1 ࡲࡓࡣ X2㸧ࢆ
165」ྜ໬㸭ྜ㔠໬ࡍࡿᐇ㦂ࢆ⾜ࡗࡓ㸬FSP ࡟ࡼࡿྜ㔠
432⏕⏘㏿ᗘࡣ㸪FSP ᚋࡢࣇࣛ࢖ࢫ┙࡟ࡼࡿᨩᢾ㒊ࡢษ23๐ᕤ⛬᫬㛫ࡶຍ࿡ࡋ࡚㸪௨ୗࡢᘧ࡟ࡼࡾホ౯ࡋࡓ㸬ྜ㔠⏕⏘㏿ᗘ㸻ᨩᢾ㒊㉁㔞(kg)㸭{FSP ᫬㛫㸩ᨩᢾ㒊ษ๐᫬㛫}(᪥)ᨩᢾ㒊㉁㔞(kg) 㸻ྜ㔠ᐦᗘ(g/cm3)ᨩᢾ㒊(ࣆࣥ)᩿㠃✚(mm2)FSP ㊥㞳(mm)㸭106
FSP ᫬㛫(min)㸻FSP ㊥㞳(mm)㸭ࢶ࣮ࣝ㏦ࡾ㏿ᗘ(mm/min)ᨩᢾ㒊ษ๐᫬㛫(min)㸻FSP ㊥㞳(mm)㸭ࣇࣛ࢖ࢫ┙㏦ࡾ㏿ᗘ (mm/min)
FSP ࡟࠾ࡅࡿᾘ㈝㟁ຊ㔞ࡣᾘ㈝㟁ຊ =:㸦:㸸ࢫࣆࣥࢻࣝ㏿ᗘ S㸪 ࡣ FSW ⿦⨨࠿ࡽฟຊࡉࢀ
ࡿࢶ࣮ࣝࢺࣝࢡ㸧ࢆࢶ࣮ࣝᤄධ᫬㛫㸦ͳ㹼ʹ㸧࡛✚⟬ࡋồࡵࡓ 4)㸬௧మ௧మʹߨܹ‫ܯ‬݀‫ݐ‬ܲ௘ ൌ න ܲ ݀‫ ݐ‬ൌ න͸Ͳ௧భ௧భ
2.2 BM ࡟࠾ࡅࡿ⏕⏘㏿ᗘ࠾ࡼࡧᾘ㈝㟁ຊ㔞

⾲ 2 BM ᥎⟬᮲௳᥎⟬᮲௳Case 3ᮦᩱ
Mg-Ni࣮࣎ࣝ┤ᚄ݀௕ (mm)10
࣮࣎ࣝ/○ᩱ ㉁㔞ẚ
10
බ㌿ᩘ Wp (rpm)230⮬㌿ᩘ Wv (rpm)-288○ᩱࡢ㉁㔞 PW (g)40࣑ࣝ᫬㛫 t (h)200Case 4BM ࡟ᑐࡋ࡚ࡣ㸪㐣ཤࡢᩥ⊩ 5-8) ࡟ᇶ࡙ࡁ⏕⏘㏿
Li-Mg-N-H
ᗘ࠾ࡼࡧ㟁ຊࢥࢫࢺࡢ࣮࢜ࢲ࣮࢚ࢫࢸ࢕࣓࣮ࢩࣙ
10ࣥࢆヨࡳࡓ㸬 Fritsch ♫〇 Pulverisette P5 ࢆ⏝࠸185࡚㸪⾲ 2 ࡟♧ࡍ᮲௳࡟࡚ Mg-Ni ྜ㔠 40 g 5) ࠾ࡼࡧ250
㘒యỈ⣲໬≀ Li-Mg-N-H 1.3 g 6) ࢆ〇㐀ࡍࡿ 2 ࡘࡢ
-313ࢣ࣮ࢫ࡟ࡘ࠸࡚㸪⏕⏘㏿ᗘࢆホ౯ࡋࡓ㸬ྛࢣ࣮ࢫࡢ
1.3
ᾘ㈝㟁ຊࡣୗグࡢ⾪✺⌮ㄽᘧ 7, 8) ࢆ⏝࠸࡚᥎⟬ࡋ2ࡓ㸬ଵଵܲ௘ ൌ ܲ௘ᇱ െ ܲ௘଴ ǡܲ௘ ൌ ߮௕ ȟ‫ܧ‬௕ ܰ௕ ߰ǡܲ௘‫ כ‬ൌ ܲ௘ ‫ݐ‬Τሺ‫ܹܲܭ‬ሻ ǡ ȟ‫ܧ‬௕ ൌ ݉௕ ܸ௕ଶ െ ݉௕ ܸ௦ଶ 
ଶ
ଶ
ଵΤଶ
ଶ ሺܴ
ଶ
ܸ௕ ൌ ቂ൫ܹ௣ ܴ௣ ൯ ൅ ܹ௏ ௏ െ ݀௕ Τʹሻ ൫ͳ െ ʹܹ௏ Τܹ௣ ൯ቃ ଵΤଶଶܸ௦ ൌ ቂ൫ܹ௣ ܴ௣ ൯ ൅ ܹ௏ଶ ሺܴ௏ െ ݀௕ Τʹሻଶ ൅ ʹܹ௣ ܹ௏ ܴ௣ ሺܴ௏ െ ݀௕ Τʹሻቃ ଶ− 86 −

3. ⤖ᯝ
⾲ 3 ࡟᪂〇ἲ㸦FSP㸧࡜ᚑ᮶ἲ㸦BM㸧࡟ࡼࡿỈ⣲྾ⶶྜ㔠ࡢ⏕⏘㏿ᗘ࠾ࡼࡧ㟁ຊࢥࢫࢺࡢẚ㍑ࢆ♧ࡍ㸬BM ࡢ⏕⏘㏿ᗘࡀᩘ㹼ᩘ 10g/᪥࡛࠶ࡿࡢ࡟ᑐࡋ㸪FSP ࡢ⏕⏘㏿ᗘࡣᩘ kg㹼⣙ 10 kg/᪥࡜࡞ࡾ㸪FSP ࡢ⏕⏘㏿ᗘࡣ BM ࡜ẚ㍑ࡋ࡚ 1㹼4 ᱆㏿࠸㸬ࡲࡓ㸪2.1 ࠾ࡼࡧ 2.2 ࡟ᚑࡗ࡚ホ౯ࡋࡓᾘ㈝㟁ຊ㔞࡟ᮾி㟁ຊࡢᴗົ⏝㟁ຊᩱ㔠㸦ኟᏘ, ¥17.54/kWh㸧ࢆ᥃ࡅ࡚⟬ฟࡋࡓ㟁ຊ㔞ᩱ㔠ࡣ㸪FSP ࡛ࡣᩘ༑㹼ᩘⓒ෇㸪BM ࡛ࡣᩘ༓෇㹼⣙ 1 ୓෇࡜࡞ࡾ㸪FSP ࡢ㟁ຊࢥࢫࢺࡣ BM ࡜ẚ㍑ࡋ࡚ 1㹼3 ᱆Ᏻࡃ࡞ࡿヨ⟬⤖ᯝࡀᚓࡽࢀࡓ㸬௨ୖࡼࡾ㸪
FSP ࡟ࡣỈ⣲྾ⶶྜ㔠ࡢ┬࢚ࢿ࣭పࢥࢫࢺ〇㐀ࣉࣟࢭࢫ࡜ࡋ࡚㐺⏝࡛ࡁࡿ࣏ࢸࣥࢩࣕࣝࡀ࠶ࡿ㸬
⾲3

FSP ࡜ BM ࡟ࡼࡿỈ⣲྾ⶶྜ㔠ࡢ⏕⏘㏿ᗘ࣭㟁ຊࢥࢫࢺẚ㍑
ᦶ᧿ᨩᢾࣉࣟࢭࢫ (FSP)〇ἲ࣮࣑࣎ࣝࣜࣥࢢ (BM)ᐇ㦂㸭᥎⟬᮲௳

Case 1Case 2

Case 3

Case 4

ᮦᩱ⣔

Mg/X1

Mg/X2

Mg-Ni

Li-Mg-N-H

ྜ㔠ࡢ㉁㔞

10.0 g

165 g

40 g

1.3 g

ࣉࣟࢭࢫ᫬㛫

288 s

432 s

200 h

2h

᭱኱ᾘ㈝㟁ຊ (kW)

9.03

8.76

0.179

0.181

ᾘ㈝㟁ຊ㔞 (kWh)

0.386

0.405

35.9

0.362

0.88

12

0.0048

0.016

¥ 679

¥ 43

¥ 10,500¥ 3,260ྜ㔠⏕⏘㏿ᗘ

(kg/᪥)

㟁ຊ㔞ᩱ㔠 (¥ /kg)㸲㸬⤖ㄽỈ⣲྾ⶶྜ㔠ࡢ᪂〇ἲ࡜ࡋ࡚ᦶ᧿ᨩᢾࣉࣟࢭࢫ(FSP)ࢆ᳨ウࡋ㸪௨ୗࡢ⤖ㄽࢆᚓࡓ㸬
FSP ࠾ࡼࡧ࣮࣑࣎ࣝࣜࣥࢢ(BM)࡟ࡼࡿỈ⣲྾ⶶྜ㔠ࡢ⏕⏘㏿ᗘ࠾ࡼࡧ㟁ຊࢥࢫࢺࡢ࣮࢜ࢲ࣮࢚ࢫࢸ࢕࣓
࣮ࢩࣙࣥࢆ⾜ࡗࡓ㸬FSP ࡢ⏕⏘㏿ᗘࡣ BM ࡼࡾ 1㹼4 ᱆㏿ࡃ㸪㟁ຊࢥࢫࢺࡣ BM ࡼࡾ 1㹼3 ᱆Ᏻ࠸࡜࠸࠺ヨ⟬⤖ᯝࡀᚓࡽࢀࡓ㸬FSP ࡣỈ⣲྾ⶶྜ㔠ࡢ┬࢚ࢿ࣭పࢥࢫࢺ㔞⏘ࣉࣟࢭࢫ࡜ࡋ࡚᭷ᮃ࡛࠶ࡿ㸬5.

ㅰ㎡
ᮏ◊✲ࡣ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲ဨไᗘ㸪ࢺࣚࢱࣔࣅࣜࢸ࢕ᇶ㔠ࠕỈ⣲♫఍ᵓ⠏࡟ྥࡅࡓ㠉᪂◊✲ຓᡂࠖ㸪࠾ࡼࡧኳ⏣㈈ᅋ 㔜Ⅼ◊✲㛤Ⓨຓᡂ㸦ረᛶຍᕤ㸧ࡢᨭ᥼ࢆཷࡅࡓ㸬ࡇࡇ࡟῝ㅰࡍࡿ㸬
6.

ཧ⪃ᩥ⊩

1)

M. Fichtner, in: Nanostructured Materials, G. Wilde Ed., Elsevier Ltd., (Oxford, UK, 2009), p. 270.

2)

D.R. Leiva, et. al., Mater.Trans. 60 (2019) 1561-1570.

3)

R.S. Mishra and Z.Y. Ma, Mater. Sci. Eng. R 50 (2005) 1-78.

4)

J. W.Pew et al., Sci. Technol. Weld. Join. 12 (2007) 341-347.

5)

T. Klassen et al., US Pat. No. US 6,387,152 B1 (2002)

6)

K. Okamoto et al., J. Alloys. Compd. 432 (2007) 289-292.

7)

N. Burio et al., Il Nuovo Cimento 13 (1991) 459-476.

8)

M. Magini and A. Iasonna, Mater. Trans. JIM 36 (1995) 123-133.
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 87 −

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㸱㸬⤖ᯝ

ᅗ 㸧&6 ࡛㖡ࢆᇙࡵࡓ⁁ࡢ )6: ๓ࡢ≧ἣ

 &6 ࡟ࡼࡿ⁁ᇙ㎸࡟ཬࡰࡍ &6 ᮲௳✰ᇙࡵࡢヨ⾜ࡢ⤖ᯝ㸪࢞ࢫᅽࡣపᅽࡢ 03D㸦ࡢ࡝ᚄ G㹲 ੈ㸪ࣀࢬࣝෆᚄ GH ੈ㸪෇⟄㒊㛗ࡉ OEDU ੈ㸪࢞ࢫ ᗘ⣙ Υ㸧ࡼࡾ㧗ᅽࡢ 03D㸦ࡢ࡝ᚄ G㹲 ੈ㸪ࣀࢬ− 88 −

ࣝෆᚄ GH ੈ㸪෇⟄㒊㛗ࡉ OEDU ੈ㸪࢞ࢫ ᗘ⣙ Υ㸧ࡢ᪉ࡀ⁁࡬ࡢᇙ㎸ࡀ࠺ࡲࡃ࡛ࡁࡓ㸬࡞࠾㸪୍⯡ⓗ࡟ &6 ࡟ࡼࡿ⁁ᇙࡵࡣࣁࣥࢹ࢕ࢱ࢖ࣉࡢ࢞ࣥ࡟࡚ᡭື࡛⾜࠸㸪ࢫࣉ࣮ࣞゅᗘ㸦ᅗ  ࡢȟ㸧ࢆ r௨እ࡟ኚ໬
ࡉࡏ࡞ࡀࡽ⾜࠺ࡀ㸪௒ᅇࡣ ;< ࣟ࣎ࢵࢺࢆ฼⏝ࡋ࡚ࢫࣉ࣮ࣞゅᗘࡣ r࡜୍ᐃ࡜ࡋࡓࡓࡵᅗ  ࡢࡼ࠺࡟⁁ࡢ࿘ࡾ࡟㖡⢏Ꮚࡀሁ✚ࡋࡸࡍ࠸ഴྥ࡜࡞ࡗࡓ㸬ࢫࣉ࣮ࣞゅᗘࡢ᳨ウࡶ⾜࠺ᚲせࡀ࠶ࡿ㸬&6 ࡟ࡼࡾ㖡ࢆᇙࡵ㎸ࢇࡔ )6: ᮲௳ࡢᙳ㡪ᅗ  ࡟ )6: ᚋࡢ⾲㠃ࡀẚ㍑ⓗพฝࡢᑡ࡞࠸⁥ࡽ࠿࡞ )6:᮲௳ࡢ୍㒊ࢆ♧ࡍ㸬⾲㠃࡟ࡣ㖡⓶⭷ࡀ┠ど࡛ࡣほᐹࡉࢀ࡞࠸㸬ᅗ  ࡟ᅗ 㸦D㸧ࡢ᩿㠃⤌⧊ࢆ♧ࡍ㸬㖡⿕⭷ࡀ 56 ഃ࡟⛣ືࡋ࡚࠸ࡿࡀ㸪⁁ࡣ࢔࣑ࣝࢽ࣒࢘࡜
㖡࡛⢒኱࡞Ḟ㝗ࡀ࡞ࡃᇙࡲࡗᅗ 㸧ࢥ࣮ࣝࢻࢫࣉ࣮࡛ࣞ㖡⢊ᮎࢆᇙࡵ㎸ࢇࡔ⁁ࡢ )6: ࢆ⾜ࡗࡓ⾲㠃ࢶ࣮ࣝᚄ  ੋ㸪
㸪㏦ࡾ PPPLQ㸪ᅇ㌿ᩘ D USP㸪 㹠 USP

࡚࠸ࡿ㸬&6 ⓶⭷≉᭷ࡢ⢏Ꮚࡀ೫ᖹࡋ࡚ሁ✚ࡍࡿ⤌⧊ࡀぢࡽࢀࡎ㸪)6: ࡟ࡼࡿረᛶὶືࡋࡓ⤌⧊࡜࡞ࡗ࡚࠸ࡿ㸬ᅗ F 㸪 G ࡟㖡ࡢ⤌⧊୰࡟Ⰽࡢ⃰࠸࢔࣑ࣝࢽ࣒࡜ᛮࢃࢀࡿᒙࡀ࠶ࡾ㸪㖡࡬ࡢ࢔࣑ࣝࢽ
࣒࢘ࡢᅛ⁐࣭ᯒฟࡶ⪃࠼ࡽࢀࡿ㸬࡞࠾㸪ᅗ♧ࡋ࡞࠸ࡀ㖡⢊ᮎࢆ⁁࡟඘ሸࡋࡓࡲࡲ࡛ࡢ )6:㸦)33㸧ࡣ㸪㖡⢊ᮎࡀ⁁࠿ࡽࡣࡳฟࡋ࡚ࡋࡲࡗࡓࡀ㸪)33 ฎ⌮ࢆࡋࡗ࠿ࡾ⌮ゎࡋ࡚⾜࠺ᚲせࡀ࠶ࡗࡓ㸬㸲㸬⤖ㄽᦶ᧿ᨩᢾ᥋ྜ㸦)6:㸧࡛ㄢ㢟࡜࡞ࡗ࡚࠸ᅗ 㸧)6: ࡢ᩿㠃⤌⧊㸦ගᏛ㢧ᚤ㙾㸸ࢶ࣮ࣝᚄ  ੋ㸪ᅇ㌿ᩘ USP㸪㏦ࡾ PPPLQ㸧ࡿ஧ࡘࡢᮦᩱ㛫ࡢࡍࡁ㛫ࢆࢥ࣮ࣝࢻࢫࣉ࣮࡛ࣞࢠࣕࢵࣉ㛫࡬ࡢ⢊ᮎࢆᇙ㎸ࡳ㸪)6: ࢆ⾜࠺ࡇ࡜᭱⤊┠ᶆ࡜ࡋ㸪ࡑࡢࡓࡵࡢᇶ♏ⓗ᳨ウ࡜ࡋ࡚㸪&6 ࡛㖡ࢆᇙࡵࡇࢇࡔ )6: ࢆ⾜࠸㸪⁁ࡣ࢔࣑ࣝࢽ࣒࢘࡜㖡࡛⢒኱࡞Ḟ㝗ࡀ࡞ࡃᇙࡲࡗࡓ㸬௒ᚋ㸪&6 ࡛ࡢᡭື࡛࢞ࣥࡢ⁁ࡢᇙࡵ㎸ࡳࡸ㸪ࡑࡢ⁁ᖜ࡞࡝ࡶ⣔⤫ⓗ࡟ኚ໬ࡉࡏ࡚㸪)6: ࡛ࡢ᳨ウ
ࢆ⾜࠺ᚲせࡀ࠶ࡿ㸬࡞࠾㸪ᮏ◊✲ࡢᡂᯝࡣ㸪᪥ᮏᶵᲔᏛ఍ 0 0 ᮦᩱຊᏛ࢝ࣥࣇ࢓ࣞࣥࢫ ࠝ㸪ࡘࡃࡤ኱ࠞ࡟
Ⓨ⾲ࢆ⾜ࡗࡓ㸬㸳㸬ཧ⪃ᩥ⊩
 .,QDGD+)XMLLHWDO(IIHFWRIJDSRQ)6:MRLQWIRUPDWLRQDQGGHYHORSPHQWRIIULFWLRQSRZGHUSURFHVVLQJ6FLHQFHDQG7HFKQRORJ\RI:HOGLQJDQG-RLQLQJ  92/  SS
 ᴬ࿴ᙪ࡯࠿㸪ࢥ࣮ࣝࢻࢫࣉ࣮ࣞ࡟ࡼࡿ࢔࣑ࣝࢽ࣒࢘㒊ᮦࡢ✰ᇙࡵᛶ࡟ཬࡰࡍ✰ᗈࡆᙧ≧࡟㛵ࡍࡿ &)'ゎᯒ㸪᪥ᮏᶵᲔᏛ఍໭㝣ಙ㉺ᨭ㒊 ➨ ᮇ⥲఍࣭ㅮ₇఍㸪㸦㸧6㸬 ᑎᆏගྐ㸪ᴬ࿴ᙪ㸪୰⏣୍༤㸪ὠᮧ༟ஓ࡯࠿㸪ࢥ࣮ࣝࢻࢫࣉ࣮ࣞ㔠ᒓ⓶⭷ࡢᦶ᧿ᨩᢾࣉࣟࢭࢫ࡟ࡼࡿᨵ㉁㸪᪥ᮏᶵᲔᏛ఍➨  ᅇᶵᲔᮦᩱ࣭ᮦᩱຍᕤᢏ⾡ㅮ₇఍㸪㸦㸧SѸ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 89 −

㠀㕲ᮦᩱࡢᦶ᧿ᨩᢾ᥋ྜ㸦FSW㸧࣭⥺ᙧᦶ᧿᥋ྜ㸦LFW㸧࡜⥅ᡭࡢᶵ⬟ホ౯㸦᱌㸧⌫㠃ࢶ࣮ࣝࢆ⏝࠸ࡓⅬ᥋ྜᢏ⾡ࡢ㛤Ⓨᗈᓥ┴❧⥲ྜᢏ⾡◊✲ᡤ ᮾ㒊ᕤᴗᢏ⾡ࢭࣥࢱ࣮኱▼ 㑳㸪ᆏᮧ຾㸪ᯇⴥᮁ㸪኱⏣⪔ᖹ㸪ᒣᙧுኴ㸪ᕷᕝⓡᇶ㸯㸬⥴ゝ㏆ᖺ㸪⮬ື㌴㌴యࡢ࣐ࣝࢳ࣐ࢸࣜ࢔ࣝ᥎㐍ࡢࡓࡵ࡟࢔࣑ࣝࢽ࣒࢘
ྜ㔠࡜㗰ᯈࡢ␗✀㔠ᒓ᥋ྜࡀồࡵࡽࢀ࡚࠾ࡾ㸪ࡑࡢゎỴ⟇࡜ࡋ࡚ⴭ⪅ࡽࡣ㸪ୗᯈࡢ㗰ᯈ࠿ࡽ࡞ࡿ✺㉳㒊ࢆୖᯈࡢ࢔࣑ࣝࢽ࣒࢘ྜ㔠ෆ࡟ᙧᡂࡍࡿࡇ࡜࡛㸪ࡑࡢ࢔࣮ࣥ࢝ຠᯝ࡟ࡼࡾ␗✀㔠ᒓࢆ᥋ྜࡍࡿᦶ᧿
࢔࣮ࣥ࢝᥋ྜ㸦ᅗ 1㸧ࢆ⪃᱌ࡋࡓ 1)㸬
୍᪉࡛ᵝࠎ࡞ᴗ⏺࡟࡚⏕⏘ᕤ⛬ࡢ IoT ໬ࡀ㐍ࡵࡽࢀ࡚࠸ࡿࡇ࡜࠿
ࡽ㸪IoT ࡟ࡼࡗ࡚ᚓࡽࢀࡓ᝟ሗࢆ᭷ຠά⏝ࡍࡿ◊✲ࡢ୍⎔࡜ࡋ࡚㸪
ᦶ᧿ᨩᢾⅬ᥋ྜ᫬࡟Ⓨ⏕ࡍࡿ⿕᥋ྜᮦࡢᗘኚ໬ࡸᅇ㌿ࡍࡿ᥋ྜࢶ࣮ࣝࡢࢺࣝࢡኚ໬࡞࡝ࡢᣲືࢆィ ࡋ㸪ࡑࢀࡽᣲື࡟ࡼࡗ࡚᥋ྜ

ᅗ 1 ᦶ᧿࢔࣮ࣥ࢝᥋ྜࢶ࣮ࣝ
࡜᥋ྜ㒊᩿㠃ࡢ✺㉳㒊ᙉᗘࢆண ࡍࡿᢏ⾡ࢆ㛤Ⓨࡋ࡚ࡁࡓ 2)㸬
ᮏ◊✲࡛ࡣ㛤Ⓨࡋࡓணᢏ⾡ࢆᦶ᧿࢔࣮ࣥ࢝᥋ྜ࡬ᒎ㛤ࡋ㸪ᦶ᧿࢔࣮ࣥ࢝᥋ྜ᫬࡟࠾࠸࡚࢖ࣥࣉࣟࢭ

ࢫ࡛᥋ྜᙉᗘࢆண ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿ㸬㸰㸬ᐇ㦂᪉ἲ
ᐇ㦂࡟ࡣᅗ 2 ࡟♧ࡍ࡜࠾ࡾᮾ㒊ᕤᴗᢏ⾡ࢭࣥࢱ࣮ࡀಖ᭷ࡍࡿỗ⏝ࣇࣛ࢖ࢫ┙ࡢࢸ࣮ࣈࣝୖ࡟࢚࢔ࢩࣜ
ࣥࢲ࣮ࢆࢭࢵࢺࡋ㸪ࡑࡢୖ࡟⿕᥋ྜᮦࢆࢭࢵࢺࡋࡓᐃ┙㸦⿬ᙜ㔠㸧ࢆ㓄⨨ࡋ㸪࢚࢔ࢩࣜࣥࢲ࣮ࢆୖୗࡉ
ࡏࡿࡇ࡜࡛ᅇ㌿ࡍࡿ᥋ྜࢶ࣮ࣝ࡟⿕᥋ྜᮦࢆᢲ㎸ࡳ㸪✀ࠎࡢ᮲௳ୗ࡛␗✀㔠ᒓ᥋ྜࢆᐇ᪋ࡋࡓ㸬ࡑࡢ㝿㸪ᵝࠎ࡞ࢭࣥࢧࢆྲྀࡾ௜ࡅ
ࡿࡇ࡜࡟ࡼࡗ࡚ᦶ᧿࢔࣮ࣥ࢝᥋ྜ
᫬ࡢᗘኚ໬➼ࡢᣲືࢹ࣮ࢱࢆྲྀ

ᚓࡋࡓ㸬ᑦ㸪᥋ྜᐇ㦂࡟ࡣ┤ᚄ
ȭ10mm ࡢ❅໬ࢣ࢖⣲⌫ࢆ↝ࡁᔐࡵࡓ᥋ྜࢶ࣮ࣝࢆ⏝࠸㸪⿕᥋ྜᮦ࡟ࡣཌࡉ 1.0mm ࡢ࢔࣑ࣝࢽ࣒࢘ྜ㔠
A5052 ᮦ࡜㗰ᯈ SPCC ࢆ⏝࠸ࡓ㸬

ᅗ 2 ᦶ᧿࢔࣮ࣥ࢝᥋ྜ⿦⨨㸦ᕥ㸧࡜ᴫ␎ᅗ㸦ྑ㸧㸱㸬ᐇ㦂⤖ᯝ
୍౛࡜ࡋ࡚㸪࠶ࡿ᮲௳ୗ࡛᥋ྜࡋࡓ㝿ࡢ⿕᥋ྜᮦࡢᗘኚ໬ࢆᅗ 3 ࡟♧ࡍ㸬ᑦ㸪᥋ྜ㛤ጞ 1.0sec ๓࡟ィ ࢆ㛤ጞࡋ㸪᥋ྜ⤊஢ 2.0sec ᚋ࡟ィ ࢆ⤊஢ࡋࡓ㸬ᅗ 3 ࡟♧ࡍ࡜࠾ࡾ㸪⌫㠃ࡢ᥋ྜࢶ࣮ࣝࡀ⿕᥋ྜᮦ࡟ᢲ㎸ࡲࢀࡿ࡜ྠ᫬࡟⿕᥋ྜᮦࡢ ᗘࡀୖࡀࡾ㸪ࡑࡋ୍࡚᪦ ᗘࡀᖹ⾮࡜࡞ࡿ㸬ࡇࡇ࡛ࡣ᥋ྜࢶ࣮ࣝࡀ
࢔࣑ࣝࢽ࣒࢘ྜ㔠ࢆ㈏㏻ࡋୗᯈࡢ㗰ᯈ⾲㠃࡟ཬࢇ࡛࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡑࡋ࡚㗰ᯈࡀ࠶ࡿ୍ᐃ ᗘ௨ୖ࡜࡞ࡿ࡜᥋ྜࢶ࣮ࣝࡀ෌ࡧᢲ㎸ࡲࢀ㸪㗰ᯈࡢᨩᢾ࡟కࡗ࡚ ᗘࡶୖ᪼ࡋࡓ࡜⪃࠼ࡽࢀࡿ㸬⥆࠸࡚ᅗ 3 ࡟♧ࡍ ᗘኚ໬࠿ࡽ᭱㧗 ᗘࢆㄞࡳྲྀࡗࡓ㸬ḟ࡟ᵝࠎ࡞᮲௳ୗ࡛᥋ྜࡋࡓ㝿ࡢ᭱㧗 ᗘ࡜᥋ྜᙉᗘ࡜ࡢ㛵ಀࢆᅗ 4 ࡟♧ࡍ㸬ᅗ 4 ࡟♧ࡍ࡜࠾ࡾ㸪᥋ྜ᫬ࡢ⿕᥋ྜᮦࡢ᭱㧗 ᗘ࡜᥋ྜᙉᗘࡣ୍ᐃࡢ
┦㛵㛵ಀ࡟࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡓࡔࡋ┦㛵㛵ಀࢆ♧ࡍỴᐃಀᩘࡣ R2=0.68 ࡛࠶ࡾ㸪⢭ᗘⰋࡃ᥋ྜᙉᗘࢆண ࡛ࡁࡿ࡜ࡣゝ࠼࡞࠸್࡛࠶ࡗࡓ㸬− 90 −

᥋ྜᙉᗘ⿕᥋ྜᮦࡢ ᗘ᥋ྜ᫬ࡢ᭱㧗 ᗘ᥋ྜ᫬㛫ᅗ 3 ᦶ᧿࢔࣮ࣥ࢝᥋ྜ᫬ࡢ⿕ᅗ 4 ⿕᥋ྜᮦࡢ᭱㧗 ᗘ᥋ྜᮦࡢ ᗘኚ໬
୍᪉㸪⿕᥋ྜᮦࡢ

࡜᥋ྜᙉᗘ࡜ࡢ㛵ಀᗘኚ໬ࡔࡅ࡛࡞ࡃ᥋ྜࢶ࣮ࣝࡢࣈࣞࡸᢲ㎸ࡳᅽຊኚ໬࡞࡝ࡢᣲື࠿ࡽ≉ᚩⓗ࡞ᅉᏊ㸦ㄝ᫂ኚᩘ㸧ࢆసᡂࡋ㸪ࡇࢀࡽᅉᏊ࡜᥋ྜᙉᗘ࡜ࡢ┦㛵ࢆㄪᰝࡋࡓ⤖ᯝ㸦ࣄ࣮ࢺ࣐ࢵࣉ㸧ࢆᅗ 5 ࡟♧ࡍ㸬ࡑࡋ࡚ᅗ 5 ࠿ࡽ᥋ྜᙉᗘ࡜┦㛵ࡢ㧗࠸ 3 ࡘࡢㄝ᫂ኚᩘࢆ㑅ᐃࡋ㸪᥋ྜᙉᗘࢆண ࡋࡓ㸬ண ࡋࡓ᥋ྜᙉᗘ࡜ᐇ㝿ࡢ᥋ྜᙉᗘ࡜ࡢ㛵ಀࢆᅗ 6 ࡟♧ࡍ㸬ᅗ 6 ࡟♧ࡍ࡜࠾ࡾ㸪ண ࡋࡓ᥋ྜᙉᗘ࡜ᐇ㝿ࡢ᥋ྜᙉᗘࡢ┦㛵㛵ಀ㸦Ỵᐃಀᩘ㸧ࡣ R2=0.80 ࡜㧗࠸್ࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓ㸬ࡇࡢ⤖ᯝࡼࡾ㸪᥋ྜ᫬࡟Ⓨ⏕ࡍࡿࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬ணࡋࡓ᥋ྜᙉᗘ

ᗘኚ໬࡞࡝ࡢᣲືࢆᤊ࠼ࡿࡇ࡜࡛㸪᥋ྜᙉᗘࢆண

ᅗ 5 ྛᅉᏊ࡜᥋ྜᙉᗘ࡜ࡢ㛵ಀ㸦ࣄ࣮ࢺ࣐ࢵࣉ㸧ᐇ㝿ࡢ᥋ྜᙉᗘ

ᅗ 6 ண ್࡜ᐇ ್࡜ࡢ㛵ಀ㸲㸬⤖ゝᮏ◊✲࡟ࡼࡾᦶ᧿࢔࣮ࣥ࢝᥋ྜ᫬࡟ᚓࡽࢀࡿᣲື࡜᥋ྜᙉᗘ࡜ࡢ㛵ಀᛶࢆศᯒࡍࡿࡇ࡜࡛㸪୍㒊ࡢᣲື㸦ㄝ᫂ኚᩘ㸧࡟࠾࠸࡚᥋ྜᙉᗘ࡜㧗࠸㛵ಀᛶࢆぢฟࡍࡇ࡜ࡀ࡛ࡁࡓ㸬ࡲࡓ 3 ࡘࡢㄝ᫂ኚᩘࡼࡾ᥋ྜᙉᗘࢆண ࡋ㸪ᐇ㝿ࡢ᥋ྜᙉᗘ࡜Ⰻዲ࡞┦㛵㛵ಀࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓ㸬ࡉࡽ࡟ᮏ◊✲࡟ࡼࡗ࡚㸪᥋ྜᙉᗘࢆண

ࡍࡿࡓࡵࡢࢭࣥࢧࡢ✀㢮㸪ᚓࡽࢀࡓᣲື࡟ᑐࡍࡿࢹ࣮ࢱฎ⌮ࡢ᪉ἲࢆྥୖࡉࡏࡿࡇ࡜ࡀ࡛ࡁ㸪࢖ࣥࣉࣟࢭࢫ࡛ࡢᙉᗘண

㸦ရ㉁⟶⌮ᡭἲࡢ☜❧㸧࡟୍Ṍ㏆࡙ࡅࡓ㸬௒ᚋࡣ RaspberryPi ࡞࡝ࡢ⡆᫆࡞ࢥࣥࣆ࣮ࣗࢱ࣮ࢩࢫࢸ࣒ࡢ ᐃุ࣭ᐃᶵჾࢆస〇ࡋ㸪ᕤ⛬ෆ࡟࡚᥋ྜ
ᙉᗘࡀ༶᫬ุᐃ࡛ࡁࡿࢩࢫࢸ࣒ࡢᵓ⠏ࢆ᳨ウࡋ࡚࠸ࡃணᐃ࡛࠶ࡿ㸬ཧ⪃ᩥ⊩1) ኱▼㑳㸪ᆏᮧ຾㸪➉ಖ⩏༤㸸␗✀㔠ᒓᯈࡢ᥋ྜ᪉ἲ㸪᪥ᮏᅜ≉チ➨ 5854451 ྕ2) ኱▼㑳㸪኱⏣⪔ᖹ㸪ᆏᮧ຾㸸ᗈᓥ┴⥲ྜᢏ⾡◊✲ᡤᮾ㒊ᕤᴗᢏ⾡ࢭࣥࢱ࣮◊✲ሗ࿌ No.36㸦2023㸧
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 91 −

ගຍ⇕ࢆ⏝࠸ࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢⓎἻ⿵ಟ࡜ࡑࡢᚋࡢᙉᗘホ౯⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛
㕥ᮌⰋ♸
㻝㻚 ⥴ㄽ
ከᏍ㉁㔠ᒓ࡛࠶ࡿ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡣ㸪㍍㔞ᛶ࡟ຍ࠼㸪⾪ᧁ྾཰ᛶ࠾ࡼࡧ㐽㡢ᛶ࡟ඃࢀ࡚࠾ࡾ㸪㍺㏦ᶵჾ
࡬ࡢᐇ⏝໬ࡀᮇᚅ࡛ࡁࡿ㸬እຊࡀຍࢃࡾࢭࣝᵓ㐀ࡀ◚ቯࡉࢀࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡣ஺᥮ࡀᚲせ࡜࡞ࡿࡀ㸪஺᥮ࡍࡿ࡜୍࠿ࡽ〇సࡍࡿᚲせࡀ࠶ࡾ㸪኱ࡁ࡞ࢥࢫࢺࡀ⏕ࡌࡿ㸬⿵ಟࡀྍ⬟࡜࡞ࢀࡤ㸪୍㒊ࡀᦆയࡋ࡚ࡶ෌౑⏝ࡍࡿࡇ࡜ࡀ࡛ࡁ㸪ࢥࢫࢺ๐ῶ࡟ࡘ࡞ࡀࡿ㸬㧗 Si ⃰ᗘࡢప⼥Ⅼ࢔࣑ࣝࢽ࣒࢘ࣉ࣮ࣜ࢝ࢧ(⿵ಟ⏝ࣉ࣮ࣜ࢝ࢧ)ࢆ⏝࠸ࡓⓎἻ᥋ྜ 1)ࡀᥦ᱌ࡉࢀࡓ㸬ࡇࡢ᪉ἲࢆᛂ⏝ࡋ㸪㟁Ẽ⅔ࢆ⏝࠸ࡓ⿵ಟ᪉ἲࡀ࠶ࡿ㸬㟁Ẽ⅔࡛ࡣ㸪ẕᮦࢆຍ⇕ࡍࡿⅬࡸ⅔
ෆࢆ ࡵࡿࡲ࡛࡟᫬㛫ࢆ᭷ࡍࡿⅬࡀḞⅬ࡜ࡋ࡚ᣲࡆࡽࢀࡿ㸬ගຍ⇕ࡢ฼Ⅼ࡜ࡋ࡚㸪ࢫࣜࢵࢺࢆ⏝࠸ࡿࡇ࡜࡛ᒁᡤ
ຍ⇕ࡍࡿࡇ࡜ࡀ࡛ࡁ㸪ຍ⇕ ᗘ㸪᫬㛫࠾ࡼࡧ᪉ྥࢆ⮬⏤࡟タᐃ࡛ࡁࡿࡇ࡜ࡀᣲࡆࡽࢀࡿ㸬㉥እ⥺ᨺᑕຍ⇕⿦⨨ࢆ⏝࠸ࡓගຍ⇕࡟ࡼࡿⓎἻ⿵ಟࡢ᭷⏝ᛶࢆㄪ࡭ࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ㸪᩿㠃ほᐹ࡜ᅄⅬ᭤ࡆヨ㦂ࢆ⾜࠺㸬㻞㻚 ᐇ㦂᪉ἲ㻞䞉㻝 䝥䝸䜹䞊䝃䛾〇స2 ✀㢮䛾䝥䝸䜹䞊䝃䜢〇స䛩䜛䚹䛭䛾〇స᮲௳䜢 Table 1 䛻♧䛩䠊⣧䜰䝹

Table 1 Compositions of precursors.

䝭䝙䜴䝮⢊ᮎ(⢏ᚄ 300 m)䠈ቑ⢓๣䛸䛧䛶䜰䝹䝭䝘(Al2O3)⢊ᮎ(⢏ᚄ⣙ 1 m)
䛚䜘䜃ⓎἻ๣䛸䛧䛶Ỉ⣲໬䝏䝍䞁(TiH2)⢊ᮎ(⢏ᚄ 45 m௨ୗ)䜢ΰྜ䛩䜛䠊㔠ᆺ䛻඘ሸ䛧䛯ᚋ䠈798 K 䛻ຍ⇕䛧 150 MPa 䛷ᅽ⢊䛧䛴䛴 3 h ಖᣢ䛧┤ᚄ
25 mm 䛾෇ᰕ≧ẕᮦ䝥䝸䜹䞊䝃䜢ᚓ䜛䠊⿵ಟ⏝䝥䝸䜹䞊䝃䛿䠈〇స᫬䛻䛣䜜䜙䛾⢊ᮎ䛸 Al-Si ྜ㔠䛸䛧䛶 ADC12 䜰䝹䝭䝙䜴䝮ྜ㔠⢊ᮎ(⢏ᚄ 20 m)䜒⏝䛔䜛䠊㻞䞉㻞 ⓎἻ⿵ಟ
〇సࡋࡓẕᮦࣉ࣮ࣜ࢝ࢧࢆ 15×15×15 mm3 ࡟ษࡾฟࡋ㸪ゅ⟶(ෆ㒊ᑍἲ 16×16×50 mm3)࡟ධࢀ㸪㟁Ẽ⅔ෆ࡛ 983 K㸪
8 min ຍ⇕ಖᣢࡋ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆᚓࡿ㸬ࡇࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡟ ĳ7 ࡢ✰(⿵ಟᏍ)ࢆ㛤ࡅ㸪ࡑࡢෆ㒊࡟ࣇࣛࢵࢡࢫࢆሬᕸࡋ㸪➃㒊࡟ࣈࣛࢵࢡࢺࢼ࣮ࢆሬᕸࡋࡓ⿵ಟ⏝ࣉ࣮ࣜ࢝ࢧ ĳ6×16 mm3 ࢆᤄධࡍࡿ㸬㉥እ⥺ᨺᑕຍ⇕⿦⨨࡛⿵ಟ⏝ࣉ࣮ࣜ࢝ࢧ➃㒊ࢆຍ⇕ࡋ㸪⣙ 2.5 K/s ࡛ 903 K ࡲ࡛᪼ ࡋ 5 min ಖᣢࡍࡿⓎἻ⿵ಟࢆ⾜࠺㸬↔Ⅼ㊥㞳
ࡣ 70 mm ࡛࠶ࡿ㸬ࡇࡇ࡛㸪ⓎἻࡋࡓ⿵ಟ⏝ࣉ࣮ࣜ࢝ࢧࢆⓎἻࣇ࢕࣮ࣛ࡜ࡍࡿ㸬ⓎἻ⿵ಟࢆ⾜ࡗࡓヨ㦂∦࡟ᑐࡋ࡚㸪᥋෗࠾ࡼࡧ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾(SEM)࡟ࡼࡿ᩿㠃ほᐹ㸪࠾ࡼࡧᅄⅬ᭤ࡆヨ㦂ࢆ⾜࠺ࡇ࡜࡛㸪⿵ಟ≧ែ࠾ࡼࡧᙉᗘࢆㄪ࡭ࡿ㸬㻟㻚 ⤖ᯝ䛚䜘䜃⪃ᐹ㻟䞉㻝 ⓎἻ⿵ಟ
⿵ಟᚋ䛾ヨ㦂∦䛾⏬ീ䜢 Fig. 1 䛻♧䛩䠊ⓎἻ䝣䜱䝷䞊䛿⿵ಟᏍ䜢䜋䜌඘ሸ䛷䛝䛶䛔䛶䠈ẕᮦ䛸᥋ྜ䛧䛶䛔䜛䠊䛧䛛䛧䛺䛜䜙䠈⿵ಟᏍ䜢᏶඲䛻ሰ䛢䛶䛔䛺䛔䛣䛸䛛䜙䠈㉥እ⥺ග䛾↷ᑕ䜢䛖䛡䜛ⓎἻ䝣䜱䝷䞊➃㒊䛿ⓎἻ䛜୙༑ศ䛷䛒䜛䠊

Fig. 1 Repaired specimens㻟䞉㻞 ᩿㠃ほᐹ⿵ಟ䛧䛯ヨ㦂∦䛾᩿㠃෗┿䜢 Fig. 2 䛻䠈Fig. 2 䛻䛚䛡䜛⥺䛷ᅖ䜣䛰㒊ศ䛾 SEM 䛻䜘䜛஧ḟ㟁Ꮚീ䜢 Fig. 3 䛻♧䛩䠊
Fig. 2 䛾⥺䛷ᅖ䜣䛰㒊ศ䛜⿵ಟᏍ䛚䜘䜃ⓎἻ䝣䜱䝷䞊୰ኸ㒊䛷䛒䜛䠊ⓎἻ䝣䜱䝷䞊୰ኸ㒊䛿䠈ẼᏍ䛾ᩘ䛜ᑡ䛺䛟䠈⿵ಟᏍ䜢᏶඲䛻ሰ䛢䛶䛔䛺䛔䠊䛣䜜䛿䠈ⓎἻ୙༑ศ䛷䛒䜛䛸⪃䛘䜙䜜䜛䠊䜘䛳䛶䠈ຍ⇕᫬㛫䛸 ᗘ䜢ቑຍ䛥䛫䜛ᚲせ䛜䛒䜛䠊Fig. 3 䛾⥺䛷ᅖ䜣䛰㒊ศ䛿᥋ྜ⟠ᡤ䛷䛒䜛䠊䝣䜱䝷䞊䛸䝫䞊䝷䝇䜰䝹䝭䝙䜴䝮䛾ቃ⏺䛜↓䛔䛣䛸䛛䜙䠈෬㔠ⓗ䛻⤖ྜ䛧䛯䛸⪃䛘䜙䜜䜛䠊− 92 −

Fig. 2 Cross-section of repaired specimen.

Fig. 3 SEM micrograph of repaired specimen.

㻟䞉㻟 ᅄⅬ᭤䛢ヨ㦂
ᅄⅬ᭤䛢ヨ㦂ᚋ䛾ヨ㦂∦䜢 Fig. 4 䛻♧䛩䠊✰䜢㛤䛡䜛๓䛾ヨ㦂∦䜢ẕᮦ䠈✰䜢㛤䛡䛯ヨ㦂∦䜢✸Ꮝ䠈⿵ಟᚋ䛾ヨ㦂∦䜢⿵ಟᚋ䛸䛩䜛䠊䝫䞊䝷䝇䜰䝹䝭䝙䜴䝮䛿ᘬᙇୗ䛷䛿䠈ᩘ%䛾ᘬᙇ䜂䛪䜏䛷◚᩿䛩䜛⬤ᙅ䛥䛜䛒䜛䛯䜑 2)䠈඲䛶䛾ヨ㦂∦䛷ᘬᙇഃ䛛䜙◚᩿䛧䛶䛔䜛䠊Fig. 4 䜘䜚䠈✸Ꮝ䛸⿵ಟᚋ䛷䛿ྠᵝ䛾ሙᡤ䛛䜙◚᩿䛧䛶䛔䜛䠊✰䜢㛤䛡䛯㒊ศ䛿䠈㛤䛡䛶䛺䛔㒊ศ䛸ẚ䜉ẕᮦ䛾ཌ䜏䛜ⷧ䛟䛺䛳䛶䛔䜛䛯䜑䠈䛭䛣䛛䜙◚᩿䛧䛯䛸⪃䛘䜙䜜䜛䠊䜎䛯䠈ᘬᙇഃ䛾✸Ꮝ䛾ヨ㦂๓ᚋ䛾✰䛾ᗈ䛜䜚ලྜ䛸䠈⿵ಟᚋ䛾ヨ㦂๓ᚋ䛾✰䛾ᗈ䛜䜚ලྜ䜢ẚ㍑䛩䜛䛸䠈⿵ಟᚋ䛾ᗈ䛜䜚ලྜ䛾䜋䛖䛜ᑠ䛥䛔䠊䛣䜜䛿䠈⿵ಟ䛻䜘䛳䛶ẕᮦ䛸䝣䜱䝷䞊䛜᥋ྜ䛧䛶䛔䜛䛯䜑䛰䛸⪃䛘䜙䜜䜛䠊
ᅄⅬ᭤䛢ヨ㦂䛛䜙ᚓ䛯᭤䛢Ⲵ㔜䛸ኚ఩䛾㛵ಀ䜢 Fig. 5 䛻♧䛩䠊Ⲵ㔜䛾኱䛝䛔㡰䛻䠈ẕᮦ䠈⿵ಟᚋ䠈✸Ꮝ䛸䛺䛳䛶䛔䜛䠊⿵ಟᚋ䛾Ⲵ㔜䛿✸Ꮝ䛾Ⲵ㔜䜘䜚䜒 48 %኱䛝䛟䛺䛳䛯䛯䜑䠈⿵ಟ䛿ྍ⬟䛷䛒䜛䠊

Fig. 4 Base metal, drilled and repaired specimens before
and after four-point bending test.

4.

Fig.5 Results of four-points bending tests.

⤖ㄽᮏ◊✲䛷䛿 Al-Si 〇⿵ಟ⏝䝥䝸䜹䞊䝃䜢⏝䛔䛶ගຍ⇕䛻䜘䜚ⓎἻ⿵ಟ䜢⾜䛔䠈⿵ಟ䛧䛯ヨ㦂∦䛾᭤䛢ᙉᗘ䛚䜘䜃⿵ಟ≧ែ䜢ㄪ䜉䠈௨ୗ䛾⤖ゝ䛜ᚓ䜙䜜䛯䠊
(1)ගຍ⇕䜢⾜䛖䛣䛸䛻䜘䜚䠈ẕᮦ䛸ⓎἻ䝣䜱䝷䞊䛜᥋ྜ䛥䜜䜛䛯䜑䠈⿵ಟ䛜ᐇ⌧ྍ⬟䛰䛸⪃䛘䜙䜜䜛䠊(2)⿵ಟ䛧䛯ヨ㦂∦䛻ᅄⅬ᭤䛢ヨ㦂䜢⾜䛳䛯⤖ᯝ䠈⿵ಟᚋ䛾ヨ㦂∦䛾ᙉᗘ䛿✸Ꮝ䛾ヨ㦂∦䜘䜚䜒ቑຍ䛧䛯䠊ẕᮦ䛾ᙉᗘ䛻⮳䜛䛯䜑䛻䠈᭦䛺䜛᥋ྜᙉᗘ䛾ྥୖ䛜ᚲせ䛷䛒䜛䠊(3)᩿㠃ほᐹ䛛䜙ẕᮦ䛸䝣䜱䝷䞊䛜⤖ྜ䛧䛶䛔䜛⟠ᡤ䛜☜ㄆ䛥䜜䛯䠊䛧䛛䛧䛺䛜䜙䠈䝣䜱䝷䞊୰ኸ㒊䛾ẼᏍ䛜ᑡ䛺䛔䛣䛸䛛䜙
ᮍⓎἻ䛷䛒䜛䛸⪃䛘䜙䜜䠈ຍ⇕᫬㛫䠈 ᗘ䜢ቑຍ䛥䛫䜛ᚲせ䛜䛒䜛䠊ㅰ㎡ᮏ◊✲䛾୍㒊䛿䠈ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝䛾䜒䛸䠈⸨஭ⱥಇᩍᤵ䛾䛤ᣦᑟ䛻䜘䜚⾜䜟䜜䜎䛧䛯䠊䛣䛣䛻グ䛧䛶ឤㅰ䛾ព䜢⾲䛧䜎䛩䠊ཧ⪃ᩥ⊩(1) Ryosuke Suzuki, Yu Sakurai and Masaaki Matsubara, J. Japan Inst. Met. Mater Vol. 80, No. 2 (2016), pp. 134-139.
(2) Hidenori Yoshimura, Materia Japan, Vol. 47, No. 4 (2008), pp. 186-190.
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 93 −

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MKXJ§R"\Øs|B$Å"QXJv #ÃÙ¢$L% 4.
Ü4)97+* 43 +(2 Ý!
ÃG$Kktw{8Ö;x~Ü#6(372/77/43 1+)8643 /)647)45+ #Ý$G¦ \Ø"!qµo<$ 
 fN MKXJ"·~B
l$  22 `> MKXJU$ÌaZ  f¡R$½fN$/- `MKXJ  (·~$v"   
 (YK 9RU  ;·~@¿|/   (YK 9RR$Ã ,U),§·~$v" |/ N6 ?MKXJ9R +V?"t6
R7I yn"!fN%  
5iV%=Y}[I yn@[" R\Ø:yZs#7  h#"/- §"MKXJ    (   (v #§·~R\Ø$` ?U  ;l − 94 −

  !#$#)$#($! $#)(  #(!%'$%')($) $#)($)#)'#)%%!%'((*'22 `>"/-  <` #"'g"'-M$½fN$¾
`5XJR\Ø7 s| #g­Ä #ªn"RPo< #MKXJYK&4R n?""fKb³R> & 'K^U¸Ò1. #"gc   32 c  32lL # -"
"
!R\Ø-14-1 a
gs| #" -M #
/-     (§"MK
XJR #·~pqÃÙfN$`ÃÙ¢,R\Ø_H jglL!MKXJYK&pqrnYK ¨yÇkL " -"/- `x!gMKXJYK&lL  % 6  pqrn
 "'$'%(#"%%##(%$)
#!,(($)+!#)'$)#)  -   (!<5v #·~0Y  -Q ±n b¦L
TRrnT!$ªD !g$l"Cm" U"·~B
Ivx!jg$lL "
RJR n$R> "Cm"U
$I  ;    ;R> R$½
MKXJ   (l  22 `"/- <5v #·~xµ¶¹$`/-   "'$'%(#(%$)
!U ;c 32g ; #!,(($)+!#)'#) $#)(;c 32 32lL " -"$)#
 -  #!$"U4R n
-  -R>" E<""'-M U  ;  ;R\Ø-1 4
-1 a gs| #/- §"UR #·~pqÃÙfN$`ÃÙ¢,R\Ø_H U ;pqrn  ($v" |/ ·~0Yc$||     ;g!lL "pqrn?" " fNU
?" Oz$"% RÐ:yZs !\Øu*xµP][ "  #(!%'$%')($) $#)($)#)'#)'&*#,fr$v #§-1·~g¨Wy6xµ¶¹$Å  RP),·~$MKXJ  (U ;l 22>@|" |/ ·~0Y$||  ÚMKXJR!4R n$?"  32$"lrgs|$bZ UR>&g2 ?" U?"R\Øu*-D
RPs| 
3hFX& ' $ .4/ +8 (1 4963(1 4, (8+6/(17 !+7+(6). (3* #+).3414-:    =

㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 95 −

0J/Lྜ㔠ࡢ⥺ᙧᦶ᧿᥋ྜ
ࢪࣗࢵ࢝ࣉ࣮ࣥࣜࣈ࣐ࣛ࢖ࠊᓲṇཎࠊ᪥㔝㝯ኴ㑻ࠊ㟷ᮌ⚈ᏹࠊ᳃㈆ዲ᫛ࠊ⸨஭ⱥಇ
ᗈᓥ኱Ꮫ ඛ㐍⌮ᕤ⣔⛉Ꮫ◊✲⛉኱㜰኱Ꮫ ᥋ྜ⛉Ꮫ◊✲ᡤ࣮࣮࢟࣡ࢻ㸸⥺ᙧᦶ᧿᥋ྜ㸹0J/L ྜ㔠㸹ᘬᙇᙉᗘ1. ┠ⓗMgྜ㔠ࡣࠊ㧗ẚᙉᗘࠊపᐦᗘࡢ≉ᚩ࡟ࡼࡾ㍺㏦ᶵศ㔝࡛ࡢ㔜㔞ࢆῶࡽࡍࡓࡵࡢᮦᩱ࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊ⁥ࡾ⣔ࡢไ㝈࡟ࡼࡾప ࡛ረᛶኚᙧࡀ㞴ࡋ࠸ࡓࡵࠊAlࠊZnࠊᕼᅵ㢮㔠ᒓࢆῧຍࡍࡿࡇ࡜࡛ᡂᆺᛶࢆྥୖࡋ࡚࠸ࡿࠋ㏆ᖺࠊMgྜ㔠ࡢHCPᵓ㐀ࢆBCCᵓ㐀࡟ኚ࠼ࡿMg-Liྜ㔠ࡢ◊✲ࡀ㐍ࡵࡽࢀ࡚࠸ࡿࠋ
Mg࡟LiࡀῧຍࡉࢀࡿሙྜࠊLi㔞ࡀ6 wt.㸣ࡲ࡛ࡣȘ㸦࣐ࢢࢿࢩ࣒࢘㸧༢┦ࡢᙧែࢆ᭷ࡍࡿࡀࠊ6 wt.㸣࠿ࡽ11 wt.㸣ࡢ⠊ᅖ࡛ࡣȘ㸩ș㸦࣐ࢢࢿࢩ࣒࢘㸩ࣜࢳ࣒࢘㸧ࡢ」ྜ┦ᵓ㐀ࢆ᭷ࡋࠊ11 wt%௨ୖ࡛ࡣș㸦ࣜࢳ࣒࢘㸧༢┦ᵓ㐀ࢆ᭷ࡍࡿࠋࡘࡲࡾࠊMg-Liྜ㔠ࡢሙྜࠊ᪤ᏑࡢMgྜ㔠࡟ẚ࡭࡚ྥୖࡋࡓ㍍
㔞໬ࡢ⛬ᗘࢆᣢࡕࠊᨵၿࡉࢀࡓᡂᙧᛶࢆ㏻ࡌࡓ㐺⏝⠊ᅖࡢᣑᙇ࠾ࡼࡧ㧗࠸⏕⏘ᛶࡶ☜ಖ࡛ࡁࡿ࡜࠸࠺
฼Ⅼࡀ࠶ࡿࠋࡇࡢࡼ࠺࡞㔠ᒓࡀ㍺㏦㒊ရ࡟౑⏝ࡉࢀࡿሙྜࠊᵓ㐀ⓗไ㝈ࡢࡓࡵ࡟᥋ྜᮦᩱࡢ〇㐀ࡀᚲせ࡜࡞ࡗ࡚࠸ࡿࠋ
ࡇࢀࡲ࡛ࠊᦶ᧿ᨩᢾ᥋ྜ࡟ࡼࡿMg-Liྜ㔠ࡢ᥋ྜࢆᐇ᪋ࡋࠊ◊✲ࡀ⾜ࢃࢀ࡚࠸ࡿ [1]ࠋࡋ࠿ࡋ࡞ࡀࡽࠊ
᥋ྜ୰࡟౑⏝ࡉࢀࡿᅇ㌿ᕤලࡢᑑ࿨࡟ไ㝈ࡀ࠶ࡾࠊ᥋ྜ᫬࡟㧗࠸ࢥࢫࢺࡀⓎ⏕ࡍࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ⥺ᙧᦶ᧿᥋ྜࢆ⏝࠸࡚Mg-Liྜ㔠ࡢ᥋ྜࢆ⾜࡞ࡗࡓࠋMg-Li⥅ᡭࡢᘬᙇ≉ᛶ࡟ཬࡰࡍ⥺ᙧᦶ᧿᥋ྜ୰ࡢ༳ຍᅽຊࡢᙳ㡪ࢆㄪᰝࡋࡓࠋ
2. ᐇ㦂᪉ἲ
ᮏ◊✲࡛ࡣࠊ3mmT×25mmW×65mmLࡢᑍἲࢆ᭷ࡍࡿMg-8Li-1Al-1Znྜ㔠㸦LAZ811ྜ㔠㸧ࢆ฼⏝ࡋࡓࠋẕᮦࡢLAZ811ྜ㔠ࡣࠊ250°C࡛ᢲฟࡋࡓࡶࡢ࡛࠶ࡿࠋFig. 1࡟LAZ811ྜ㔠ࡢᚤ⣽⤌⧊ࢆ♧ࡍࠋSEM෗┿࡛ぢࡽࢀࡿࡼ࠺࡟ࠊLAZ811ྜ㔠ࡣࠊȘ-Mg㸦ࢢ࣮ࣞ㸧࡜ș-Li㸦ࣈࣛࢵࢡ㸧ࡢ2┦ࢆᣢࡗ࡚࠸ࡿࠋ
␗࡞ࡿ༳ຍᅽຊ㸦50ࠊ100ࠊ150 MPa㸧࡛᥋ྜࢆ⾜࠸ࠊ࿘Ἴᩘࡣ25 Hz࡛࠶ࡾࠊ᣺ᖜࡣ2 mm ࡜ࡋࡓࠋྛ᮲௳ࡢ᥋ྜ࡟ࡼࡾᚓࡽࢀࡓ⥅ᡭ࡟ᑐࡋ࡚ᐊ ࡟࡚ᘬᙇヨ㦂ࢆ⾜ࡗࡓࠋᘬᙇヨ㦂∦ࡣ᪥ᮏ⏘ᴗつ᱁JI
S13B࡟ᚑࡗ࡚స〇ࡉࢀ࡚࠾ࡾࠊ⥅ᡭࢆ࣡࢖ࣖᨺ㟁ຍᕤᶵ࡟࡚ຍᕤࡋࠊ᥋ྜ㒊ࡢࣂࣜࢆࣇࣛ࢖ࢫຍᕤࠊ
ᡭ◊☻࡟ࡼࡗ࡚㝖ཤࡍࡿᕤ⛬ࢆ⤒࡚స〇ࡋࡓࠋヨ㦂∦స〇ᚋࠊᘬᙇヨ㦂ᶵ࡟࡚ࢡࣟࢫ࣊ࢵࢻ㏿ᗘ0.5mm/min࡟࡚ ᐃࢆ⾜ࡗࡓࠋFig. 1. Microstructures of Mg-8Li-1Al-1Zn alloy.
3. ᐇ㦂⤖ᯝ
3.1. LAZ811⥅ᡭࡢእほ࡜࣐ࢡ᩿ࣟ㠃⤌⧊᥋ྜ ᗘࡢᙳ㡪ࢆㄪᰝࡍࡿࡓࡵ࡟ࠊ50ࠊ100ࠊ150 MPaࡢ␗࡞ࡿ༳ຍᅽຊ࡛᥋ྜࢆ⾜࠸ࠊ⥅ᡭࡢእほ෗┿࡜࣐ࢡ᩿ࣟ㠃⤌⧊ࢆFig. 2࡟♧ࡍࠋ᥋ྜ ᗘࡢቑຍࢆᢚไࡍࡿࡓࡵ࡟ࠊ࿘Ἴᩘࢆ25 Hz࡛࠶ࡾࠊ᣺
ᖜࡣ2 mm࡜ࡋࡓࠋ඲࡚ࡢ༳ຍᅽຊ᮲௳࡛᥋ྜࡀᡂຌࡋ࡚࠾ࡾࠊᚓࡽࢀࡓ⥅ᡭࡢእほ෗┿࡜࣐ࢡ᩿ࣟ
㠃⤌⧊࡛ࡣࠊ᥋ྜḞ㝗ࡣぢࡽࢀ࡞࠿ࡗࡓࠋ

− 96 −

Fig. 2. Appearance and cross-section of linear friction welded Mg-8Li-1Al-1Zn alloy.
3.2. ⥅ᡭࡢᘬᙇ≉ᛶ␗࡞ࡿ༳ຍᅽຊ࡛ᚓࡽࢀࡓ⥅ᡭࡢᘬᙇヨ㦂ࢆ⾜࠸ࠊࡑࢀࡽࡢ⤖ᯝࢆFig. 3࡟♧ࡍࠋLAZ811ྜ㔠ࡢᘬᙇᙉᗘࡣࠊ175 MPa࡛࠶ࡿࠋ50 MPaࡢపᅽຊ࡜150 MPaࡢ㧗ᅽຊࡢ୧᪉ࠊẕᮦࡢᘬᙇᙉᗘ࡜ྠ➼࡛࠶ࡿࡇ࡜ࡀぢࡽࢀࡿࠋࡇࡢ⤖ᯝࡣࠊ࠾ࡑࡽࡃLAZ811ྜ㔠ࡢప⇕ఏᑟ⋡࡟ࡼࡾࠊ᥋ྜ୰⇕ᙳ㡪㒊ࡢᙧᡂࢆᢚไࡋࡓࡇ࡜࡟㉳ᅉࡍࡿ࡜⪃࠼ࡽࢀࡿࠋࡲࡓࠊ᥋ྜ㒊࡛㌾໬ࢆᢚไࡋ࡚࠾ࡾࠊ᥋ྜ⥅ᡭࡢࡦࡎࡳࡀ
ẕᮦࡼࡾపୗࡍࡿࡇ࡜࠿ࡽࠊ᥋ྜ㒊࡛ࡣ⤖ᬗ⢏ࡢᚤ⣽໬ຠᯝ࡟ࡼࡾᙉ໬ࡉࢀ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋࡇ
ࡢ⤖ᯝࡼࡾࠊMg-Liྜ㔠ࡢ᥋ྜ࡛ࡣࠊ⥺ᙧᦶ᧿᥋ྜἲࡀ᭷ຠ࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ

Fig. 3. Stress-strain curves of linear friction welded Mg-8Li-1Al-1Zn alloy.
4㸬⤖ㄽ⥺ᙧᦶ᧿᥋ྜ࡟ࡼࡗ࡚ᚓࡽࢀࡓLAZ811⥅ᡭࡢ࣐ࢡ᩿ࣟ㠃⤌⧊࡜ᘬᙇ≉ᛶࢆㄪᰝࡋࡓࠋ
(1) ᥋ྜḞ㝗ࡢ࡞࠸೺඲࡞⥅ᡭࢆ඲࡚ࡢ༳ຍᅽຊࡢ᮲௳࡛సᡂࡍࡿࡇ࡜࡟ᡂຌࡋࠊ⥅ᡭຠ⋡100%ࢆ㐩ᡂࡋࡓࠋ(2) 50 MPaࡢపᅽຊ࡜150 MPaࡢ㧗ᅽຊࡢ୧᪉ࠊ⥅ᡭຠ⋡100%ࢆ㐩ᡂࡋࡓࡢࡣࠊ᥋ྜ㒊࡛㌾໬ࡀᢚไࡉࢀࠊLAZ811ྜ㔠ࡢప⇕ఏᑟ⋡࡟ࡼࡾࠊ᥋ྜ୰⇕ᙳ㡪㒊ࡢᙧᡂࢆᢚไࡋࡓࡓࡵ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ
ཧ⪃ᩥ⊩[1] M. Zhou, et al: Materials Science and Engineering A 773 (2020) 138730.
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 97 −

⁐᥋Ṇ➃࡟ྜࢃࡏ࡚㈞௜ࡉࢀࡓࡦࡎࡳࢤ࣮ࢪ࡟ࡼࡿ

ᐃᛂຊ࡟ᇶ࡙ࡃ⑂ປᙉᗘ
㟼ᒸ⌮ᕤ⛉኱Ꮫ
෠Ọ ▱ᚨ㸯㸬┠ⓗ㕲㐨㌴୧⏝ྎ㌴ᯟࡣ㸪ࡑࡢタィ࡟࠾࠸࡚⁐᥋㒊➼࠿ࡽࡢ⑂ປࡁ⿣ࡢⓎ⏕ࢆ⪃៖ࡍࡿᚲせࡀ࠶ࡿ㗰ᵓ㐀ࡢ୍ࡘ࡛࠶ࡿ㸬ࡋ࠿ࡋ㕲㐨㌴୧⏝ྎ㌴ᯟ࡛ࡣ⁐᥋㒊ྠኈࡀ㏆᥋ࡍࡿࡓࡵ㸪HSS (Hot spot
stress)ࢆ㐺⏝ࡍࡿࡇ࡜ࡀ㞴ࡋ࠸㸬ࡇ࠺ࡋࡓྎ㌴ᯟࡢ⑂ປタィ࡛ࡣ㸪As-weld ࡢ⁐᥋Ṇ➃㒊ࢆྵࡴࡼ࠺࡟㸪ࡦࡎࡳࢤ࣮ࢪࢆࡑࡢ 1/2㹼1/3 ࡀ⁐᥋㔠ᒓ࡟࠿࠿ࡿࡼ࠺࡟㈞ࡾ௜ࡅ(ᅗ 1)㸪㟼ⓗ㍕Ⲵヨ㦂࡟ࡼࡗ࡚⁐᥋Ṇ➃㒊ࡢᛂຊࢆホ౯ࡍࡿ᪉ἲ㸦௨ୗ㸪JIS ᘧ࡜࿧ࡪ㸧ࡀつᐃࡉࢀ࡚࠸ࡿ㸦JIS E4208㸪2021㸧㸬
ࡋ࠿ࡋ⁐᥋Ṇ➃㒊࡟┤᥋ࡦࡎࡳࢤ࣮ࢪࢆ㈞௜ࡅ࡚ィࡍࡿ㝿ࡣ㸪Asweld ࡢ⁐᥋Ṇ➃ᙧ≧ࡀ⁐᥋᪉ἲ㸪⁐᥋᮲௳࡟ࡼࡗ࡚␗࡞ࡿࡇ࡜㸪ࡉࡽ࡟ィ ⪅ࡢᙳ㡪ࡶཷࡅࡿࡇ࡜ࢆ⪃៖ࡍࡿᚲせࡀ࠶ࡿ㸬 ࡋ࠿ࡋ㏆ᖺ㸪㕲㐨ྎ㌴ᯟ࡛ࡢࡁ⿣Ⓨ⏕ࡀ┦ḟ࠸࡛࠸ࡿࡇ࡜࠿ࡽ⑂ປ࡟ᑐࡍࡿᏳ඲ᛶࢆ㆟ㄽࡍࡿ࠺࠼࡛ᇶᮏⓗ࡞᝟ሗ࡜࡞ࡿチᐜᛂຊࢆ࠶ࡽࡓࡵ࡚☜ㄆࡍࡿࡇ࡜ࡣ㔜せ࡜⪃࠼ࡽࢀࡿ㸬ࡑࡢࡓࡵᮏ
◊✲࡛ࡣ㸪᪤ ࡢ⑂ປヨ㦂ࢹ࣮ࢱࢆά⏝ࡋ㸪ࡑࢀࡽヨ㦂࡟࠾࠸࡚ࢤ࣮ࢪ➃ᘧ࡛ᚓࡽࢀࡿᛂຊࢆ෌
⌧ゎᯒ࡟ࡼࡗ࡚᥎ᐃࡋ㸪ࢤ࣮ࢪ➃ᘧ࡟ᑐࡍࡿチᐜᛂຊࢆ࠶ࡽࡓࡵ᳨࡚ウࡍࡿ࡜࡜ࡶ࡟㸪ྠᵝ࡟HSS ࡟ᑐࡍࡿチᐜᛂຊࢆ᳨ウࡋ㸪ࢤ࣮ࢪ➃ᘧࡢࡑࢀ࡜ẚ㍑ࡍࡿ㸬           ᅗ 1) Strain gauge attachment positions㸰㸬◊✲᪉ἲ 㐣ཤࡢከᩘࡢ⑂ປヨ㦂⤖ᯝࢆά⏝ࡋ㸦ᶓ㛵௚, 2020 ࡯࠿㸧㸪⑂ປᙉᗘࢆホ౯ࡋࡓ㸬ࡑࡢ㝿㸪⤫୍ⓗ࡞ホ౯ࢆྍ⬟࡜ࡍࡿࡓࡵ࡟㸪SN 㛵ಀࡢ⦪㍈࡛࠶ࡿᛂຊ᣺ᖜࢆ᭷㝈せ⣲ゎᯒ(FEA)࡛ྛヨ㦂యࢆ෌ゎᯒࡋ࡚ồࡵࡓ㸬ࣔࢹࣝᴫせࢆᅗ 2 ࡟♧ࡍ㸬ᶓ㍈ࡣྛヨ㦂యࡢ⑂ປヨ㦂࡛ᚓࡽࢀࡓ⑂ປᑑ࿨
ࢆ౑ࡗ࡚࠸ࡿ㸬FEA ⤖ᯝ࠿ࡽࡣᛂຊࡢᣠ࠸᪉࡛㸪JIS ᘧ࡜ HSS ࡜୧᪉ࡢᛂຊࢆ⟬ฟࡍࡿࡇ࡜ࡀ࡛
ࡁࡿࡓࡵ㸪཮᪉ࢆẚ㍑ࡋ࡞ࡀࡽ᳨ウࢆ⾜ࡗࡓ㸬ᑐ㇟࡜ࡍࡿ⑂ປヨ㦂ࡣ㸪Ⲵ㔜㠀ఏ㐩༑Ꮠ⥅ᡭ㸪Ⲵ㔜ఏ㐩༑Ꮠ⥅ᡭ㸪ࡶࡋࡃࡣ㠃እ࢞ࢭࢵࢺ⥅ᡭ࡜ࡋ㸪୺ᯈཌ 9̽16 mm㸪㍈ᘬᙇⲴ㔜㍕Ⲵ㸪୍ᐃ᣺ᖜ⧞㏉ࡋⲴ㔜࡟ࡼࡿヨ㦂࡜ࡋࡓ㸬⥅ᡭᙧ≧ࡣᇶᮏⓗ࡞ᙧ≧࡜ࡋ࡚㑅ᐃࡋࡓ㸬༑Ꮠ⥅ᡭࡣⲴ㔜㠀ఏ㐩ᆺ࠾ࡼࡧ᏶඲⁐㎸ࡳⲴ㔜ఏ㐩ᆺ࡜ࡋ㸪Ⲵ㔜┤஺᪉ྥ࡟ᶓ᩿ࡍࡿᮍ⁐╔㒊ࡀ⑂ປᙉᗘ࡟ᙳ㡪ࢆཬࡰࡍ୙᏶඲⁐㎸ࡳⲴ㔜ఏ㐩ᆺࡣᑐ㇟እ࡜ࡋࡓ㸬ᯈཌࡣ㸪㕲㐨ྎ㌴ᯟ࡟౑ࢃࢀࡿ㢖ᗘࡀ㧗࠸ᯈཌࢆᑐ㇟࡟ࡍࡿࡓࡵ㸪࠾ࡼࡧ⑂ປᙉᗘࡢᯈཌ౫Ꮡᛶ
࡟ࡼࡿᙳ㡪ࢆᢚ࠼ࡿࡓࡵ㝈ᐃࡋࡓ㸬 ⤖ᯝ㸪ィ 302 యࡢ⑂ປヨ㦂⤖ᯝࢆά⏝ࡋ᳨࡚ウࢆ⾜ࡗࡓ㸬㸱㸬⤖ᯝ ᅗ 3 ࡟⦪㍈ FEM㸪ᶓ㍈⑂ປヨ㦂⤖ᯝ࡛⤫୍ホ౯ࡋࡓ SN 㛵ಀࢆ♧ࡍ㸬ᑐ㇟ࡣᐇ㝿ࡢྎ㌴ᯟࡢ⁐᥋᪉᱌࡟‽ࡌ࡚〇సࡋࡓヨ㦂యࡢࢹ࣮ࢱࢆྵࡴ㸬ᅗ୰ࡢᩳࡵ⥺ࡣ᭱ᑠ஧஌ἲ࠿ࡽィ⟬ࡋࡓ 0.1%࠾

− 98 −

ࡼࡧ 99.9%◚ቯ☜⋡࡛㸪Ỉᖹ⥺ࡣᚋ㏙ࡢ᭱ᑬἲ࡛ィ⟬ࡋࡓ 2.3%࠾ࡼࡧ 97.7%◚ቯ☜⋡ࢆ♧ࡍ㸬༑Ꮠ⥅ᡭ࡜㠃እ࢞ࢭࢵࢺ࡜࡛ S-N ࣉࣟࢵࢺࡢഴࡁࡣ 3.7㸪2.8 ࡛㸪ࡲࡓ 2106 ᅇ࡛ࡢ 0.1%◚ቯ☜⋡⑂ປᙉᗘࡣ 92.8㸪89.7 N/mm2 ࡛࠶ࡗࡓ㸬࠸ࡎࢀࡢ⥅ᡭ࡛ࡶ⑂ປᙉᗘࡀ 0.1%◚ቯ☜⋡⥺௨ୗ࡜࡞ࡗ
ࡓࢹ࣮ࢱࡣ↓࠿ࡗࡓ㸬
⾲ 1 ࡟ࢤ࣮ࢪ➃ᘧ࡟ࡼࡿ⑂ປᙉᗘ⟬ฟ⤖ᯝ࡜ HSS ࡟ࡼࡿࡑࢀ࡜ࢆẚ㍑ࡋ࡚♧ࡍ㸬࠸ࡎࢀࡢሙྜ
࡛ࡶࢤ࣮ࢪ➃ᘧ࡟ࡼࡿᛂຊࢆィ ࡋ࡚㸪HSS ࡟ᑐࡋ࡚タᐃࡉࢀ࡚࠸ࡿ᪤ ࡢタィ⥺ࢆ⏝࠸ࡿࡇ࡜࡛㸪ࡑࡢタィ⥺ࡀ᝿ᐃࡍࡿ⛬ᗘࡶࡋࡃࡣࡑࢀ௨ୖࡢᏳ඲ᛶࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡿ࡜⪃࠼ࡽࢀࡿ㸬JIS ࡟ࡼࡿタィ⑂ປᙉᗘ࡜㸪ᮏㄽ࡛⑂ປࢹ࣮ࢱ࠿ࡽ⟬ฟࡉࢀࡓ⑂ປᙉᗘ࡜ࡢẚ⋡ࢆ⟬ฟࡋ㸪୍᪉࡛ྠᵝࡢẚ⋡ࢆ IIW ⑂ປタィᣦ㔪࡟♧ࡉࢀࡿ HSS ࡟ᑐࡋ࡚ࡶ⟬ฟࡋ୧⪅ࢆẚ㍑ࡋࡓ࡜ࡇࢁ㸪JIS ࡢ್ࡢ᪉ࡀ 10̽25%኱ࡁ࠸㸪ࡍ࡞ࢃࡕ༴㝤ഃ࡜࡞ࡗࡓ㸦⾲ 1 ୰ࡢ c-iii㸧㸬      ᅗ 2  FEA ࣔࢹࣝᴫせᅗ 3 ᳨ウ⤖ᯝࡢ౛

⾲1

㸲㸬⤖ㄽ
1)ᮏㄽ࡛⏝࠸ࡓ 30 ࡢࢹ࣮ࢱࢭࢵࢺࡢ࠺ࡕ 10 ࢭࢵࢺ࡟࠾࠸࡚ࢤ࣮ࢪ➃ᘧ࡟ᑐࡍࡿ 2106 ᅇ⑂ປᙉᗘࡀ㸪JIS つᐃ࡟┦ᙜࡍࡿチᐜᛂຊࢆୗᅇࡗࡓ㸬2) JIS ࡟ࡼࡿチᐜᛂຊ࡜㸪ᮏㄽ࡛⑂ປࢹ࣮ࢱ࠿ࡽ⟬ฟࡉࢀࡓチᐜᛂຊ࡜ࡢẚ⋡ࢆ⟬ฟࡋ㸪୍᪉࡛ྠᵝࡢẚ⋡ࢆ IIW ⑂ປタィᣦ㔪࡟♧ࡉࢀࡿ HSS ࡟ᑐࡋ࡚ࡶ⟬ฟࡋ୧⪅ࢆẚ㍑ࡋࡓ࡜ࡇࢁ㸪JISࡢ್ࡢ᪉ࡀ 10̽25%኱ࡁ࠸㸪ࡍ࡞ࢃࡕ༴㝤ഃ࡜࡞ࡗࡓ㸬㸳㸬ཧ⪃ᩥ⊩JIS E 4208-1, Rolling stock – Bogie – Strength test – Part 1: Methods for static load testing, Japanesestandards association (2021) (in Japanese).
Yokozeki, K., Tominaga, T., Shimokawa, Y., Makino, T., Kato, T., A study on fatigue evaluation method
for railway bogie frames based on stress assessments, The Proceedings of the 29th Transportation andLogistics Conference, No. 1303 (2020) (in Japanese).
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 99 −ࢽ࢔ ȕ ᆺࢳࢱࣥྜ㔠⥺ᙧᦶ᧿᥋ྜ⥅ᡭࡢ᥋ྜ㒊⤌⧊࡜ຊᏛⓗ≉ᛶ㏆␥኱Ꮫ⌮ᕤᏛ㒊௰஭ṇ᫛኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ
ᮌෆ
1.

ኟᐇࠊ㟷ᮌ

⚈ᏹࠊ⸨஭

ⱥಇ

┠ⓗ
ࢳࢱࣥྜ㔠ࡣࠊ㧗ẚᙉᗘࠊ㧗⪏㣗ᛶ࠾ࡼࡧ㧗⪏⇕ᛶ࡛࠶ࡿࡇ࡜࠿ࡽࠊ⯟✵ᶵ⏝㒊ᮦ࡜ࡋ࡚౑⏝ࡉࢀ࡚࠸ࡿࠋ

⯟✵ᶵ㒊ရ࡟ࡣ㧗࠸ຊᏛⓗಙ㢗ᛶࡀồࡵࡽࢀࡿࡓࡵࠊཌᯈࡸ㘫㐀ရ࠿ࡽษ๐ຍᕤ࡟ࡼࡾ〇㐀ࡉࢀ࡚࠸ࡿࠋ㒊ရ㔜㔞ࡢᩘಸࡢ⣲ᮦࡀ౑⏝ࡉࢀ࡚࠸ࡿࡇ࡜࠿ࡽࠊ⣲ᮦ๐ῶࡀᙉࡃồࡵࡽࢀ࡚࠸ࡿࠋ᥋ྜࡣࠊ⣲ᮦ๐ῶࢆ㐩ᡂࡍࡿࡓࡵࡢ㔜せ࡞ᢏ⾡ࡢ୍ࡘ࡛࠶ࡿࡀࠊຊᏛⓗಙ㢗ᛶࡢほⅬ࠿ࡽ᥋ྜḞ㝗ࡢᙧᡂࢆᅇ㑊ࡍࡿࡇ࡜ࡀ኱ࡁ࡞ㄢ
㢟࡜࡞ࡿࠋᚑ᮶ࡢ᥋ྜἲ࡛࠶ࡿ⁐᥋ࡣࠊ⁐⼥ࣉࣟࢭࢫ࡛࠶ࡿࡓࡵࠊจᅛ᫬ࡢ᥋ྜḞ㝗ࡢᙧᡂࢆᅇ㑊ࡍࡿࡇ࡜ࡀᅔ㞴࡛࠶ࡾࠊࡲࡓࠊจᅛ᫬࡟ᙧᡂࡋࡓ᥋ྜḞ㝗ࢆ᥋ྜᚋࡢ⇕ฎ⌮࡛㝖ཤࡍࡿࡇ࡜ࡀᅔ㞴࡛࠶ࡿࡓࡵࠊ⑂ປ
ᙉᗘࡀపୗࡍࡿ➼ࡢၥ㢟ࡀ࠶ࡗࡓࠋࡇࢀ࡟ᑐࡋࠊᦶ᧿᥋ྜࡣᦶ᧿⇕ࡸຍᕤⓎ⇕ࢆ฼⏝ࡍࡿ᥋ྜἲ࡛࠶ࡾࠊᮦ
ᩱࡣ⼥Ⅼ௨ୗ࡛ረᛶὶືࡋࠊᅛ┦≧ែࡢࡲࡲ᥋ྜࡉࢀࡿࡓࡵࠊ᥋ྜḞ㝗ࡀᙧᡂࡉࢀ࡟ࡃࡃࠊ⁐᥋࡟ẚ࡭࡚Ⰻዲ࡞⑂ປ≉ᛶࡀᚓࡽࢀࡸࡍ࠸ࠋࡑࡇ࡛ࠊࡇࢀࡲ࡛࡟ࠊ᭱ࡶỗ⏝ⓗ࡞ࢳࢱࣥྜ㔠࡛࠶ࡿ Ti-6Al-4V ྜ㔠ࡸ௒ᚋࡢ⯟✵ᶵ㒊ᮦ࡬ࡢ㐺⏝ࡀᮇᚅࡉࢀࡿ Ti-4.5Al-2.5Cr-1.2Fe-0.1C㸦Ti531C㸧ྜ㔠ࢆ⏝࠸࡚ࠊᦶ᧿ᨩᢾ᥋ྜ㸦FSW㸧ࢆ᪋ࡋࡓ⥅ᡭࡢ⑂ປ≉ᛶ࡟ࡘ࠸࡚ㄪᰝ᳨࣭ウࡋ࡚ࡁࡓ[1, 2]ࠋᮏ◊✲࡛ࡣࠊFSW ࡼࡾࡶ㧗㏿࡛᥋ྜྍ⬟࡛࠶ࡾࠊ
FSW ࡢࡼ࠺࡟㧗౯࡞ࢶ࣮ࣝࢆ౑⏝ࡋ࡞࠸ᦶ᧿᥋ྜࡢ୍ࡘ࡛࠶ࡿ⥺ᙧᦶ᧿᥋ྜ㸦LFW㸧ࢆ◊✲ᑐ㇟࡜ࡋࡓࠋTi6Al-4V ྜ㔠࡬ࡢ LFW ࡢ㐺⏝࡟ࡘ࠸࡚ࡣከࡃࡢሗ࿌ࡀ࡞ࡉࢀ࡚࠾ࡾࠊᙜ◊✲ࢢ࣮ࣝࣉ࡟࠾࠸࡚ࡶ≉࡟ LFW ࡀ
Ti-6Al-4V ྜ㔠⥅ᡭࡢ⑂ປ≉ᛶ࡟ཬࡰࡍᙳ㡪࡟╔┠ࡋ࡚◊✲ࢆ㐍ࡵ࡚࠸ࡿ[3]ࠋࡋ࠿ࡋࠊTi-6Al-4V ྜ㔠ࡼࡾࡶȕ Ᏻᐃᗘࡀ㧗࠸ࢽ࢔ ȕ ᆺࢳࢱࣥྜ㔠࡬ࡢ LFW ࡢ㐺⏝࡟ࡘ࠸࡚ࡣࠊ
Ti-6Al-4V ྜ㔠࡟ࡘ࠸࡚ሗ࿌࡯࡝ከࡃ࡞ࡃࠊ
ࡉࡽ࡟ࡣࠊLFW ࡟ࡼࡾ༑ศ࡞⥅ᡭᙉᗘࡀᚓࡽࢀ࡞࠸࡜࠸࠺ሗ࿌[4] ࡶ࠶ࡾࠊಙ㢗ᛶ࡟Ḟࡅࡿࡢࡀ⌧≧࡛࠶ࡿࠋ㏆ᖺࠊLFW ࡟࠾࠸࡚㧗༳ຍᅽຊࢆ㈇Ⲵࡍࡿࡇ࡜࡛᥋ྜ

ᗘࢆୗࡆ࡚ᶵᲔⓗ≉ᛶ࡟ඃࢀࡓ⥅ᡭࢆᐇ⌧࡛ࡁࡿ࡜ሗ࿌ࡉࢀ࡚࠸ࡿ[5]ࠋࡑࡇ
࡛ᮏ◊✲࡛ࡣࠊ⯟✵ᶵ㒊ᮦ࡟⏝࠸ࡽࢀࡿࢽ࢔ ȕ ᆺࢳࢱࣥྜ㔠ࡢ୍ࡘ࡛࠶ࡿ Ti5Al-2Sn-2Zr-4Cr-4Mo 㸦 Ti17㸧ྜ㔠ࢆ⏝࠸࡚ࠊప༳ຍ
ᅽຊ࠾ࡼࡧ㧗༳ຍᅽຊ࡛
LFW ࢆ⾜࠸ࠊ⥅ᡭࡢ⤌⧊࡜ኚᙧᣲືࢆホ౯ࡍࡿࡇ
࡜࡜ࡋࡓࠋ
2.

◊✲᪉ἲ
౪ヨᮦࡣࠊᅽୗ⋡ 75 %

ࡢ Ti-17 ྜ㔠㘫㐀ᮦࢆ⏝࠸ࡓࠋཌࡉ 5mm×ᖜ 20 mm ×㛗ࡉ 64 mm ࡢヨ㦂∦ࢆ༙ᚄ᪉ྥ࠿ࡽ᥇ྲྀࡋ✺ࡁྜ

ᅗ 1 (a) ẕᮦ࠾ࡼࡧప
ᮦ࠾ࡼࡧ (c) ప

LFW ᮦࡢᛂຊ-ࡦࡎࡳ⥺ᅗࠊ(b) 㧗

LFW ᮦࡢ◚᩿๓ࡢࡦࡎࡳศᕸ

− 100 −

LFW

ࢃࡏ࡚ LFW ࢆᐇ᪋ࡋࡓࠋLFW ࡣ ȕ ࢺࣛࣥࢨࢫ㸦⣙ 890ႏ㸧௨ୖࡲࡓࡣ௨ୗ࡛᥋ྜࢆ㐩ᡂࡍࡿࡓࡵ࡟༳ຍᅽ
ຊࢆ 50 MPa㸦㧗ᡭࡣ㧗㸧࡜ 550 MPa㸦ప

LFW ᮦ࠾ࡼࡧప

㸧࡟ไᚚࡋࠊ࿘Ἴᩘ 15 Hzࠊ᣺ᖜ 2 mm ࡛ᐇ᪋ࡋࡓࠋ௨ୗࠊᚓࡽࢀࡓ⥅LFW ᮦ࡜⛠ࡍࡿࠋẕᮦ࠾ࡼࡧྛ LFW ⥅ᡭ࡟ᑐࡋ࡚⤌⧊ほᐹ࠾ࡼࡧᘬᙇヨ㦂ࢆ

ᐇ᪋ࡋࡓࠋ
3.

◊✲⤖ᯝ
ᅗ 1(a) ࡟ẕᮦ࡜ྛ LFW⥅ᡭࡢබ⛠ᛂຊ-බ⛠ࡦࡎࡳ᭤⥺ࢆ♧ࡍࠋ㧗

LFW ᮦࡢᘬᙇᙉᗘࡣẕᮦࡼࡾⱝᖸ
పࡃࠊᅗ 1(b) ࡟♧ࡍࡼ࠺࡟᥋ྜ㒊࡛◚᩿ࡋࡓࡀࠊప
LFW ᮦࡢᘬᙇᙉᗘࡣẕᮦࡼࡾࡶⱝᖸ㧗࠸್ࢆ᭷ࡋࠊᅗ 1(c) ࡟♧ࡍࡼ࠺࡟ẕᮦ◚᩿ࢆ࿊ࡋࡓࠋ
ᅗ 2 ࡟ࢹࢪࢱࣝ⏬ീ┦㛵
LFW ᮦࡢ

ἲࡼࡾᚓࡓప

ᅗ2

ᘬᙇヨ㦂୰ࡢప

LFW ᮦෆࡢࡦࡎࡳศᕸࡢኚ໬

ヨ㦂∦⾲㠃ࡢᕧどⓗ࡞ࡦࡎࡳࢆࠊ᥋ྜ㒊୰ᚰ࠿ࡽࡢ㊥㞳࡟ᑐࡋ࡚ࣉࣟࢵࢺࡋࡓࢢࣛࣇࢆ♧ࡍࠋᅗ୰ࡢྛ␒ྕࡣᅗ 1(a) ෆ࡟♧ࡋࡓ␒ྕ࡜
ᑐᛂࡋ࡚࠸ࡿࠋ㧗

LFW ᮦࡣ᥋ྜ㒊࡛ඃඛⓗ࡟ኚᙧࡋ◚᩿ࡋࡓࠋప

LFW ᮦࡣ㝆అ┤ᚋ࡛ࡣ᥋ྜ㒊࡛ඃඛⓗ࡟ኚᙧࡋࡓࡀࠊࡑࡢᚋࡣẕᮦ㒊࡟ኚᙧࡀ㞟୰ࡋࠊẕᮦ࡛◚᩿ࡋࡓࠋࡇࡢ LFW ⥅ᡭ㛫ࡢኚᙧᣲືࡢᕪ␗ࡣࠊ
᥋ྜ㒊࡟࠾ࡅࡿᚤど⤌⧊ᙧែࡸ◳ࡉࡢ㐪࠸࡟㉳ᅉࡍࡿ࡜᥎ᐹࡉࢀࡿࠋẕᮦ⤌⧊ࡣ⢒኱ ȕ ⢏ෆ࡟㔪≧ Į ⢏ࡀᏑᅾࡍࡿࠋ㧗

LFW ᮦࡢ᥋ྜ㒊ࡣ Į ࢆ୺య࡜ࡋࡓᚤど⤌⧊࠿ࡽᡂࡾࠊẕᮦࡼࡾࡶ◳ࡉࡀప࠿ࡗࡓࡓࡵ࡟᥋ྜ㒊࡟ኚᙧࡀ㞟୰ࡋࡓ࡜⪃࠼ࡽࢀࡿࠋ୍᪉࡛ࠊప
ࡽᵓᡂࡉࢀ࡚࠸ࡓࠋప

LFW ᮦࡢ᥋ྜ㒊ࡣᖹᆒ⢏ᚄࡀ 0.7 m ⛬ᗘࡢᚤ⣽࡞ Į+ȕ ┦࠿

LFW ᮦ࡛ࡣ᥋ྜ㒊ࡢ◳ࡉࡣẕᮦࡼࡾࡶⱝᖸప࠸ࡀࠊຍᕤ◳໬⬟ࡀ㧗࠿ࡃࠊ㝆అ┤ᚋ࡛ࡣኚᙧࡣ᥋ྜ㒊࡟㞟୰ࡍࡿࡀࠊኚᙧ୰࡟ຍᕤ◳໬ࡋẕᮦࡼࡾࡶ㧗ᙉᗘ໬ࡍࡿࡇ࡜࡛ࠊẕᮦ◚᩿ࢆ㐩ᡂࡋࡓ࡜᥎ᐹࡉࢀࡿࠋ
ཧ⪃ᩥ⊩[1] M. Nakai, M. Niinomi, Y. Ishida, H.H. Liu, H. Fujii and T. Ninomiya, Mater. Trans. 58 (2017) 1223-1226.
[2] M. Nakai, M. Niinomi, K. Komine, H.H. Liu, Y. Morisada and H. Fujii, Mater. Sci. Eng. A 742 (2019) 553-563.
[3] ௰஭ṇ᫛, 2022 ᖺᗘ኱㜰኱Ꮫ᥋ྜ⛉Ꮫඹྠ฼⏝࣭ඹྠ◊✲ᣐⅬඹྠ◊✲ሗ࿌᭩ (2023) 85-86.
[4] E. Dalgaard, P. Wanjara, J. Gholipour, X. Cao and J.J. Jonas, Acta Mater. 60 (2012) 770-780.
[5] J.-W. Choi, Y. Aoki, K. Ushioda and H. Fujii, Scr. Mater. 191 (2021) 12-16.

㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 101 −

⥺ᙧᦶ᧿᥋ྜࢆ㐺⏝ࡋࡓࢳࢱࣥྜ㔠⥅ᡭࡢ⑂ປ≉ᛶ࡟ཬࡰࡍ㈇ⲴἼᙧࡢᙳ㡪㏆␥኱Ꮫ኱Ꮫ㝔⥲ྜ⌮ᕤᏛ◊✲⛉
▼⚄

‪ဢࠊ௰஭

ṇ᫛

኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ
㟷ᮌ
1.

⚈ᏹࠊ⸨஭

ⱥಇ

┠ⓗ
㍍㔞࣭㧗ᙉᗘ࣭㧗⪏㣗ᛶ࡛࠶ࡿࢳࢱࣥྜ㔠ࡣࠊ⯟✵ᶵ⏝ᮦᩱ࡜ࡋ࡚ࡢ㟂せࡀቑ኱ࡋ࡚࠸ࡿࠋ⌧ᅾࠊ⯟✵ᶵ㒊ရࡣຊᏛⓗಙ㢗ᛶ㔜どࡢࡓࡵࠊཌᯈࡸ㘫㐀ရ࠿ࡽษ๐ຍᕤࡋ࡚〇㐀ࡉࢀ࡚࠾ࡾࠊ㒊ရ㔜㔞ࡢᩘಸࡢ⣲ᮦࡀ౑⏝ࡉࢀ࡚࠸ࡿࠋ᥋ྜࡣ⣲ᮦ๐ῶࢆ㐩ᡂࡍࡿࡓࡵࡢ㔜せ࡞ᢏ⾡ࡢ୍ࡘ࡛࠶ࡿࡀࠊຊᏛⓗಙ㢗ᛶ㸦≉࡟⑂ປ≉ᛶ㸧ࡢほⅬ࠿ࡽ᥋ྜḞ㝗ࡢᙧᡂࢆᅇ㑊ࡍࡿࡇ࡜ࡀ኱ࡁ࡞ㄢ㢟࡜࡞ࡿࠋࡇࡢሙྜࠊᦶ᧿⇕ࡸຍᕤⓎ⇕ࢆ฼⏝ࡋ࡚ࠊ⁐⼥ࡉࡏࡎ࡟᥋ྜࡍࡿᅛ┦᥋ྜࡢ୍✀࡛࠶ࡿ⥺ᙧᦶ᧿᥋ྜࡣࠊᚑ᮶ࡢ⁐⼥᥋ྜἲ࡜ẚ㍑ࡋ࡚ࠊ᥋ྜḞ㝗ࢆᙧᡂࡋ࡟ࡃ࠸࡜࠸࠺฼Ⅼࡀ࠶ࡿࠋ୍᪉࡛ࠊ᥋ྜ㒊࡟࠾ࡅࡿᒁᡤⓗ࡞ኚᙧ࣭ຍ⇕࡟ࡼࡾࠊ᥋ྜ㒊ෆ࠾ࡼࡧࡑ
ࡢ㏆ഐ࡟࠾ࡅࡿ⤌⧊ࡀኚ໬ࡍࡿࡓࡵࠊࡑࢀࡀ᥋ྜᮦࡢຊᏛⓗ≉ᛶ࡟ཬࡰࡍᙳ㡪ࢆᢕᥱࡍࡿᚲせࡀ࠶ࡿࠋ≉࡟ࠊ᥋ྜࡢ㐺⏝ࡀᮇᚅࡉࢀࡿ⯟✵ᶵ࢚ࣥࢪࣥ㒊ရࡢ୍ࡘ࡛࠶ࡿࣈࣜࢫࢡ࡛ࡣࠊ㞳㝣᫬࡟୍ᐃ᫬㛫㧗ᛂຊ㈇Ⲵ≧ែ࡜࡞ࡿࡓࡵࠊࡑࡢ⧞ࡾ㏉ࡋ࡟ᑐࡍࡿ⪏ஂᛶ࡛࠶ࡿ Dwell ⑂ປ≉ᛶࡀ㔜せ࡜࡞ࡿࠋࡓࡔࡋࠊࡇࡢ Dwell ⑂ປ≉ᛶࡣࠊ⑂ປ⌧㇟࡜ᐊࢡ࣮ࣜࣉ⌧㇟࡜ࡀ㛵ಀࡍࡿ࡜⪃࠼ࡽࢀࡿ」㞧࡞≀⌮⌧㇟[1, 2] ࡛࠶ࡿࡓࡵࠊࡑࢀ⮬యࡢ⌮ゎࡀ༑ศ࡟࡞ࡉࢀ࡚࠸࡞࠸ࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ᥋ྜᮦ࡜ẕᮦ࡜ࢆẚ㍑ࡍࡿ࡜࡜ࡶ࡟ࠊ᭱኱ᛂຊ୍࡛ᐃ᫬
㛫ಖᣢࡍࡿሙྜ㸦Dwell ⑂ປ㸧࡜ࡋ࡞࠸ሙྜ㸦㏻ᖖ⑂ປ㸧࡜࡛⑂ປ≉ᛶࢆẚ㍑ࡋࠊ᥋ྜࡀ Dwell ⑂ປ≉ᛶ࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ2.

◊✲᪉ἲヨᩱ࡜ࡋ࡚ࠊ⥺ᙧᦶ᧿᥋ྜἲࢆ⏝࠸࡚ Ti-6Al-4V ྜ㔠⥅ᡭࢆస〇ࡋࡓࠋᮏ◊✲࡛ࡣࠊ᥋ྜ᮲௳࡜ࡋ࡚ࠊ༳ຍ

ᅽຊ 50MPa㸦᥋ྜᮦ 50MPa㸧࠶ࡿ࠸ࡣ 550MPa㸦᥋ྜᮦ 550MPa㸧࡜ࡋ࡚᥋ྜࡋࡓࠋ⑂ປヨ㦂㸦◚᩿࣭㏵୰Ṇࡵ㸧࡟ࡘ࠸࡚ࡣࠊ㏻ᖖ⑂ປ࡛ࡣࠊ᭱኱ᛂ
ຊ 878MPaࠊ࿘Ἴᩘ 0.25Hzࠊᛂຊẚ R=0࡜ࡋ࡚ᐇ᪋ࡋࡓࠋDwell ⑂ປ࡛ࡣࠊ㏻ᖖ
⑂ປࡢᛂຊἼᙧࡢ᭱኱ᛂຊᆅⅬ࡛ 120s㛫ࡢಖᣢࢆຍ࠼ࡓࠋ㏵୰Ṇࡵ⑂ປ࡟࠾࠸
࡚ࡣࠊ೵Ṇࢧ࢖ࢡࣝᩘࢆ⑂ປᑑ࿨ࡢึ
ᮇࠊ๓ᮇࠊ୰ᮇ࡜ࡍࡿࡓࡵࠊ㏻ᖖ⑂ປ࡛
ࡣ 100 ࢧ࢖ࢡࣝࠊ1000 ࢧ࢖ࢡࣝ࠾ࡼࡧ
2400 ࢧ࢖ࢡࣝ࡜ࡋࠊDwell ⑂ປ࡛ࡣ 10 ࢧ
࢖ࢡࣝࠊ100 ࢧ࢖ࢡࣝ࠾ࡼࡧ 280 ࢧ࢖ࢡࣝ࡜ࡋࡓࠋ⑂ປヨ㦂ᚋࡣ◚᩿ᮦ࡛ࡣ◚㠃ほᐹࢆ⾜࠸ࠊ㏵୰Ṇࡵᮦ࡛ࡣࠊᖹ⾜㒊୰ኸ㸦᥋ྜ㒊㸧࡟࠾࠸࡚ࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂ࢆ⾜ࡗࡓࠋ
ᅗ13.

◊✲⤖ᯝ
ᅗ 1 ࡟㏻ᖖ⑂ປ࠾ࡼࡧ Dwell ⑂ປࡢ⑂⥺ᙧᦶ᧿᥋ྜࢆ᪋ࡋࡓ Ti-6Al-4V ྜ㔠⥅ᡭ㸦LFW50MPaࠊ

LFW550MPa㸧࠾ࡼࡧ Ti-6Al-4V ྜ㔠ẕᮦ㸦BM㸧ࡢ⑂ປヨ㦂⤖ᯝ㸦LCF: ㏻ᖖ⑂ປࠊDwell: Dwell ⑂ປ㸧− 102 −

ປヨ㦂⤖ᯝࢆ♧ࡍࠋDwell ⑂ປ࡛
ࡣࠊ㏻ᖖ⑂ປ࡜ẚ࡭࡚⑂ປᑑ࿨ࡀ
1/10 ⛬ᗘ࡟పୗࡋࡓࠋ࠸ࡎࢀࡢࢱ
࢖ࣉࡢ⑂ປヨ㦂࡟࠾࠸࡚ࡶࠊẕᮦ࡜᥋ྜᮦ࡜࡟⑂ປᑑ࿨ࡢ㢧ⴭ࡞ᕪࡣㄆࡵࡽ࡞࠸ࡓࡵࠊ⥺ᙧᦶ᧿᥋ྜ
࡟ࡼࡿ⑂ປ≉ᛶࡢຎ໬ࡣ࡯ࡰ࡞࠸
࡜⪃࠼ࡽࢀࡿࠋᅗ 2 ࡟◚㠃ほᐹࡢ⤖ᯝࢆ♧ࡍࠋ㏻ᖖ⑂ປ࡛ࡣࢫࢺࣛ
࢖࢚࣮ࢩࣙࣥࡀほᐹࡉࢀࡓࡢ࡟ᑐ
ࡋ࡚ࠊDwell ⑂ປ࡛ࡣࠊ࡯ࡰ඲㠃࡟ࢹ࢕ࣥࣉࣝࡀほᐹࡉࢀࡓࠋࡇࢀࡽࡢほᐹ⤖ᯝ࠿ࡽࠊ㏻ᖖ⑂ປ࡜
Dwell ⑂ປ࡜࡛ࡣࠊ◚ቯᙧែࡀ␗
࡞ࡿ࡜ุ᩿ࡉࢀࡿࠋᅗ 3 ࡟⑂ປヨ㦂୰ࡢྛࢧ࢖ࢡࣝ࡟࠾ࡅࡿ᭱኱ࡦ

ᅗ2⥺ᙧᦶ᧿᥋ྜࢆ᪋ࡋࡓ Ti-6Al-4V ྜ㔠⥅ᡭ㸦LFW550MPa㸧࠾ࡼࡧ Ti-6Al-4V ྜ㔠ẕᮦ㸦BM㸧ࡢ⑂ປ◚㠃ほᐹ⤖ᯝ㸦LCF: ㏻ᖖ⑂ປࠊ
CDF: Dwell ⑂ປ㸧ࡎࡳ࡜◚᩿ᑑ࿨࡟ᑐࡍࡿࢧ࢖ࢡࣝ
ᩘࡢẚ㸦N/Nf㸧ࡢ㛵ಀࢆ♧ࡍࠋ㏻ᖖ⑂ປࡢ᭱኱ࡦࡎࡳࡣࠊᑑ࿨ึᮇ
࡛ቑຍࡋࠊࡑࡢᚋ୍ᐃࡢഴࡁ࡜࡞
ࡾࠊᑑ࿨ᚋᮇ࡛෌ࡧ኱ࡁࡃቑຍࡋ
◚᩿ࡍࡿഴྥࢆ♧ࡋࡓࠋẕᮦ࡜᥋ྜᮦ㸦LFW50MPaࠊLFW550MPa㸧࡜ࢆẚ㍑ࡍࡿ࡜ࠊ᥋ྜᮦ࡛ࡣࠊẕᮦ࡟ẚ࡭࡚ࠊࡼࡾᑑ࿨ึᮇ㸦N/Nf= 0~10%㸧࡛ᛴ㏿࡟ࡦࡎࡳࡀቑຍ
ࡋࡓࡀࠊࡑࡢᚋࡣࡦࡎࡳࡢ኱ࡁࡉ
ࡀẕᮦࡢࡑࢀ࡜㏫㌿ࡋ࡚ࠊẕᮦࡢ࡯࠺ࡀ኱ࡁ࡞ࡦࡎࡳ࡛ᐃᖖ≧ែ࡜࡞ࡾࠊᑑ࿨ᚋᮇ࡛෌ᗘࡦࡎࡳࡀቑ
ຍࡋ࡚◚᩿ࡋࡓࠋDwell ⑂ປࡢ᭱

ᅗ3኱ࡦࡎࡳࡣࠊヨ㦂ึᮇ࠿ࡽ◚᩿࡟ࡿࢧ࢖ࢡࣝᩘࡢẚ࡜ࡢ㛵ಀ⑂ປヨ㦂୰ࡢྛࢧ࢖ࢡࣝ࡟࠾ࡅࡿ᭱኱ࡦࡎࡳ࡜⑂ປᑑ࿨࡟ᑐࡍ

⮳ࡿࡲ࡛ࠊ㏻ᖖ⑂ປ࡟ẚ࡭࡚኱ᖜ࡟኱ࡁ࡞್࡜࡞ࡗࡓࠋDwell ⑂ປ࡛ࡣࠊ㏻ᖖ⑂ປ࡜ẚ㍑ࡋ࡚ࠊẕᮦ࡜᥋ྜᮦ࡜࡛ࡣ᫂ࡽ࠿࡟ࡦࡎࡳࡢ኱ࡁࡉࡀ␗࡞ࡾࠊ⤊ጞࠊẕᮦࡢࡦࡎࡳࡀ
኱ࡁ࠸≧ែ࡛᥎⛣ࡋ◚᩿࡟⮳ࡿ࡜࠸࠺ഴྥࢆ♧ࡋࡓࠋཧ⪃ᩥ⊩[1] M.R. Bache, Int. J. Fatigue 25 (2003) 1079-1087.
[2] ᳃೺୍, ᓅ㎶⚽ᚨ, ᶫᮏ⩧ኴᮁ, ᪥ᮏ〇㕲ᢏሗ 418 (2021) 97-102.
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 103 −

A5052 ᯈᮦࢆ฼⏝ࡋࡓ CFRP ࡜㕲㗰ᮦᩱࡢᦶ᧿ᨩᢾ㔜ࡡ᥋ྜᆅ᪉⊂❧⾜ᨻἲே኱㜰⏘ᴗᢏ⾡◊✲ᡤ≀㉁࣭ᮦᩱ◊✲㒊㛗ᒸ ஽㸯㸬┠ⓗⅣ⣲⧄⥔ᙉ໬⇕ྍረᛶࣉࣛࢫࢳࢵࢡ㸦CFRTP㸧ࡣ㸪㍍㔞࡛ᶵᲔⓗᛶ㉁࡟ඃࢀ࡚࠸ࡿࡓࡵ㸪⮬ື㌴ࡸ⢭ᐦᶵჾ➼࡟ᖜᗈࡃ฼⏝ࡉࢀ㸪ࡑࡢ㟂せࡣᣑ኱ࡋࡘࡘ࠶ࡿ㸬CFRTP ࢆ᭦࡟ά⏝ࡍࡿࡓࡵ࡟㸪㔠ᒓ㒊ရ࡜ࡢ᥋ྜᢏ⾡ࡀồࡵࡽࢀ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪⇕ྍረᛶᶞ⬡ࡢ୍ࡘ࡛࠶
ࡿ࣏ࣜ࢔࣑ࢻ 6㸦PA6㸧ࢆẕᮦ࡜ࡍࡿ CFRTP ࡜ SPCC ࡞ࡽࡧ࡟ SUS304 ࡢ㔜ࡡ᥋ྜ࡟ᦶ
᧿ᨩᢾ᥋ྜࢆ㐺⏝ࡋ㸪᥋ྜ㒊ࡢᶵᲔⓗᛶ㉁࡟ཬࡰࡍ᥋ྜ᮲௳ࡢᙳ㡪ࢆ᳨ウࡋࡓ㸬㸰㸬◊✲᪉ἲ
᥋ྜᐇ㦂࡟ࡣ㸪Ⅳ⣲⧄⥔ࢆ 20 wt%ྵࡴ PA6 ࠿ࡽ࡞ࡿ CFRTP ᯈᮦࢆ⏝࠸ࡓ㸬CFRTP ᯈᮦࡢࢧ࢖ࢬࡣ 140 mm  75 mm  3 mm ࡛㸪SPCC ᯈᮦ࡜ SUS304 ᯈᮦࡢࢧ࢖ࢬࡣ࡜
ࡶ࡟㸪140 mm  75 mm  2 mm ࡛࠶ࡗࡓ㸬CFRTP ᯈᮦ࡟ࡣ๓ฎ⌮࡜ࡋ࡚#800 ◊☻⣬࡟ࡼࡿ◊☻ࢆ᪋ࡋࡓ㸬SPCC ᯈᮦ࡜ SUS304 ᯈᮦ࡟ࡣ㸪࿘Ἴᩘ 50 kHz㸪Ἴ㛗 1064 nm ࡢࣃࣝࢫ࣮ࣞࢨࢆ↷ᑕࡋ࡚⾲㠃ࢆ⢒㠃໬ࡉࡏࡓ㸬㟁ὶ್ࢆ 10 A㸪16 A ࡜ኚ໬ࡉࡏࡓ㸬CFRTP
ᯈᮦࡢୖ࡟ SPCC ᯈᮦࡲࡓࡣ SUS304 ᯈᮦࢆ㸪㔜ࡡ௦ 25 mm ࡛㔜ࡡࡓ㸬ࡑࡢୖ࡟᭦࡟ྠ
ࡌࢧ࢖ࢬࡢ SPCC ᯈᮦ࠾ࡼࡧ A5052 ᯈᮦࢆ㏣ຍᮦ࡜ࡋ࡚㔜ࡡ㸪ᦶ᧿ᨩᢾ㔜ࡡ᥋ྜࢆ⾜ࡗࡓ㸬ࢩࣙࣝࢲᚄ 15 mm㸪ࣉ࣮ࣟࣈᚄ 6 mm㸪ࣉ࣮ࣟࣈ㛗ࡉ 0.5 mm ࡢ SKD61 〇ࢶ࣮ࣝࢆ⏝࠸ࡓ㸬ࢶ࣮ࣝᅇ㌿ᩘࡣ 500 rpm㸪㏦ࡾ㏿ᗘࡣ 100 mm/min㸪๓㐍ゅࡣ 3r࡜ࡋࡓ㸬 SPCC
ᯈᮦ࠾ࡼࡧ SUS304 ᯈᮦࡢ᥋ྜ㒊㏆ഐ࡟⇕㟁ᑐࢆタ⨨ࡋ㸪 ᗘ ᐃࢆ⾜ࡗࡓ㸬ᘬᙇࡏࢇ᩿
ヨ㦂∦ࡣ㸪ᖜ 10 mm ࡛᥋ྜ᪉ྥ࡟ᆶ┤࡟ษࡾฟࡋࡓ㸬ᚓࡽࢀࡓ᥋ྜᮦ࡟ࡘ࠸࡚㸪ᘬᙇࡏࢇ᩿ヨ㦂࡜㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾࡟ࡼࡿ᩿㠃ほᐹ࠾ࡼࡧඖ⣲ศᯒࢆ⾜ࡗࡓ㸬㸱㸬⤖ᯝ䝟䝹䝇䝺䞊䝄ฎ⌮ᚋ䛾 SPCC ᯈᮦ䛚䜘䜃 SUS304 ᯈᮦ䛾⾲㠃䜢 Fig. 1 䛻♧䛩䠊SPCC 䛚䜘䜃 SUS304 䛾⾲㠃䛿䝟䝹䝇䝺䞊䝄ฎ⌮䛻䜘䛳䛶䠈▷᫬㛫䛷⁐⼥䛧จᅛ䛧䛯䜒䛾䛸⪃䛘䜙䜜䜛䠊㟁ὶ್ 10 A 䛾ሙྜ䛿䠈෇ᙧ䛾⁐⼥㡿ᇦ䛜 30 m 㛫㝸䛷୪䜣䛷䛔䜛ᵝᏊ䛜ほᐹ䛥䜜䛯䠊㟁ὶ್䜢
16 A 䛻䛩䜛䛸෇ᙧᙧ≧䛜୙᫂░䛸䛺䜚䠈⢏≧䛾✺㉳䛜ከᩘほᐹ䛥䜜䛯䠊 Fig. 2 䛻᥋ྜᚋ䛾
CFRTP/SPCC ᥋ྜᮦ䠈䛚䜘䜃 CFRTP/SUS304 ᥋ྜᮦ䛾እほ䜢♧䛩䠊ᅇ㌿䝒䞊䝹䛿㏣ຍᮦ䛾
A5052 ᯈᮦ䛸䛾䜏᥋ゐ䛧䛯䛯䜑䠈SPCC 䛚䜘䜃 SUS304 䛾⾲㠃䛻䝒䞊䝹⑞䛿ㄆ䜑䜙䜜䛺䛛䛳䛯䠊
CFRTP/SPCC ᥋ྜᮦ䠈䛚䜘䜃 CFRTP/SUS304 ᥋ྜᮦ䛾᥋ྜ㒊᩿㠃ほᐹ⤖ᯝ䜢 Fig. 3 䛻− 104 −

♧䛩䠊ᦶ᧿ᨩᢾ᥋ྜ䛻䜘䜛 SPCC 䛚䜘䜃 SUS304 䛾ኚᙧ䛿ᢚไ䛥䜜䛯䠊䝒䞊䝹䛸䛾㛫䛻㏣ຍᮦ䜢タ⨨䛩䜛䛣䛸䛷䠈SPCC 䛚䜘䜃 SUS304 䛜ᨩᢾ䛥䜜䛺䛛䛳䛯䛯䜑䛸⪃䛘䜙䜜䜛䠊᥋ྜ㒊㏆ഐ䛾
CFRTP ෆ䛻䛿✵㝽䛜ㄆ䜑䜙䜜䛯䠊ᅇ㌿䝒䞊䝹䛸 A5052 ㏣ຍᮦ䛾㛫䛻⏕䛨䛯ᦶ᧿⇕䛜 SPCC 䜎䛯䛿 SUS304 䜢௓䛧䛶 PA6 䛻ఏ䜟䜚䠈PA6 䛾୍㒊䛜⁐⼥䠈Ẽ໬䛧䛶✵㝽䛜⏕䛨䛯䜒䛾䛸⪃䛘䜙䜜䛯䠊ᚓ䜙䜜䛯⥅ᡭ䛾ᘬᙇ䛫䜣᩿ヨ㦂⤖ᯝ䜢 Fig. 4 䛻♧䛩䠊䛔䛪䜜䛾᮲௳䛷䜒◚᩿䛿᥋ྜ⏺㠃䛷⏕䛨䛯䠊SUS304 䜢⏝䛔䛯ሙྜ䛻䠈SPCC 䜢⏝䛔䛯ሙྜ䛸ẚ㍑䛧䛶᥋ྜᙉᗘ䛿㧗䛟䛺䛳䛯䠊䜎䛯䠈䝟䝹䝇䝺䞊䝄ฎ⌮䛾㟁ὶ್䛜 10 A 䛾ሙྜ䛸ẚ䜉䜛䛸䠈16 A 䛾᪉䛜᥋ྜᙉᗘ䛿㧗䛟䛺䛳䛯䠊㟁ὶ್䜢 16 A 䛸䛩䜛䛣䛸䛷䠈䝟䝹䝇䝺䞊䝄ฎ⌮ᚋ䛾⾲㠃ᙧ≧䛜」㞧໬䛧䠈᥋ྜ᫬䛾䜰䞁䜹䞊ຠᯝ䛜ቑຍ䛧䛯䛯䜑䛸⪃䛘䜙䜜䛯䠊㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 105 −

㧗 Mn 㗰ࡢᦶ᧿ᨩᢾ᥋ྜᢏ⾡ࡢ☜❧࡜᥋ྜᶵᵓࡢゎ᫂≀㉁࣭ᮦᩱ◊✲ᶵᵓ ᰗᵹ ▱ஓ
1. ┠ⓗᙧ≧グ᠈ྜ㔠ࢆ࣮࣋ࢫ࡜ࡋ࡚㛤Ⓨࡉࢀࡓ Fe-15Mn-10Cr-8Ni-4Si ྜ㔠(௨ୗࠊFMS ྜ㔠࡜࿧ࡪ)ࡣࠊȖ ࣮࢜ࢫࢸࢼ࢖ࢺ࡜ İ ࣐ࣝࢸࣥࢧ࢖ࢺ㛫ࡢྍ㏫ⓗ࡞ኚᙧㄏ㉳ኚែ࡟ࡼࡾࠊඃࢀࡓపࢧ࢖ࢡࣝ⑂ປᑑ࿨ࢆ᭷ࡋ࡚࠸ࡿࠋ
ࡑࡢࡓࡵࠊᆅ㟈᫬ࡢ᣺ື࢚ࢿࣝࢠ࣮ࢆ྾཰ࡍࡿ᪂ࡓ࡞ไ᣺ࢲࣥࣃ࣮⏝ࡢ㗰ᮦ࡜ࡋ࡚ᮇᚅࡉࢀ࡚࠸ࡿ[1]ࠋࡇࢀ
ࡲ࡛࡟ FMS ྜ㔠ࢆࢥ࢔ࣉ࣮ࣞࢺ࡜ࡋ࡚タィࡉࢀࡓไ᣺ࢲࣥࣃ࣮ࢆ㧗ᒙࣅࣝ࡬࡜ᐇ⿦ࡋࡓ౛ࡣ࠶ࡿࡀࠊእᯈ
࡜ࡢ᥋⥆ࡣ࣎ࣝࢺࢼࢵࢺ࡟ࡼࡿᶵᲔⓗ⥾⤖࡟㝈ᐃࡉࢀ࡚࠸ࡿࠋࡇࢀࡣࠊ⁐⼥⁐᥋ἲ࡛ࡣࠊ࣮࢜ࢫࢸࢼ࢖ࢺ(A)༢┦࡛จᅛ(A ࣮ࣔࢻจᅛ)ࡋࠊจᅛ๭ࢀࡀⓎ⏕ࡋࡸࡍ࠸ࡓࡵ࡛࠶ࡿࠋ௒ᚋࠊไ᣺ࢲࣥࣃ࣮࡜ࡋ࡚ࡢ฼⏝ࢆࡉࡽ࡟ᣑ኱ࡋ࡚࠸ࡃࡓࡵ࡟ࡣࠊ⏕⏘ᛶࡢྥୖࡸࢥࢫࢺ๐ῶࡢほⅬ࠿ࡽࠊᶵᲔⓗ⥾⤖ἲࢆ⏝࠸࡞࠸⁐᥋࣭᥋ྜᢏ
⾡ࡢ㛤Ⓨࢆ⾜࠺ࡇ࡜ࡀᚲせ࡛࠶ࡿࠋࡑࡢ୍᪉࡛ࠊᅛ┦᥋ྜἲࡢ୍✀࡛࠶ࡿᦶ᧿ᨩᢾ᥋ྜ(FSW)࡛ࡣࠊ⁐⼥⁐᥋࡛ၥ㢟࡜࡞ࡿจᅛ๭ࢀࡢⓎ⏕ࢆᢚไ࡛ࡁࡿࡇ࡜ࡸ⁐᥋㒊ࡢ⤌⧊ࡢᚤ⣽໬࡟ࡼࡗ࡚ᶵᲔⓗ≉ᛶࡢྥୖࡀᮇᚅ
࡛ࡁࡿࠋࡉࡽ࡟㏆ᖺࡢ᥋ྜᢏ⾡ࡢⓎᒎࡸࢶ࣮ࣝ㛤Ⓨ࡟ࡼࡗ࡚ࠊᯈཌ 10 mm ௨ୖࡢ Fe ⣔ᮦᩱ࡟࠾࠸࡚ࡶ᥋ྜ
ࡀྍ⬟࡜࡞ࡗ࡚࠾ࡾࠊ᭷ᮃ࡞ᵓ㐀య໬ᡭἲ࡜ࡋ࡚ᮇᚅࡉࢀ࡚࠸ࡿࠋ
ࡇࢀࡲ࡛࡟ 2 mm ཌࡢ FMS 㗰ᯈࢆᑐ㇟࡟ FSW ࡟ࡼࡿ᥋ྜࢆヨࡳࠊ᥋ྜ᮲௳ࡢ᭱㐺໬࡟ࡼࡾࠊḞ㝗ࡢ࡞࠸⥅ᡭࡢస〇ࡀྍ⬟࡛࠶ࡿࡇ࡜ࢆᐇドࡋࡓ[2]ࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊᵓ㐀య໬ࢆ᝿ᐃࡋ࡚ࠊཌࡉ 10 mm ࡢ FMS
㗰ᯈ࡟ᑐࡋ࡚ FSW ࡟ࡼࡿ⥅ᡭࡢస〇ࢆ⾜࠸ࠊ᥋ྜᛶ࠾ࡼࡧᘬᙇᙉᗘࡸపࢧ࢖ࢡࣝ⑂ປᑑ࿨࡞࡝ࡢᶵᲔⓗ≉ᛶ࡟ࡘ࠸࡚ホ౯ࡋࡓࠋ
2. ᐇ㦂᪉ἲ
Fe-15Mn-10Cr-8Ni-4Si ⤌ᡂࡢཌࡉ 10 mm ࡢ౪ヨᮦ(100 mm ᖜ×210 mm 㛗ࡉ)࡟ᑐࡋ࡚ࠊStir in plate ࡛ FSW
ࢆ⾜࠸ࠊ᥋ྜᛶ࡟ࡘ࠸࡚ㄪᰝࡋࡓࠋࢶ࣮ࣝࡢ⛣ື㏿ᗘࡣ 10 mm/min ࡜ࡋࠊࢶ࣮ࣝࡢᅇ㌿㏿ᗘࢆ 125ࠊ150ࠊ
200ࠊ500 rpm ࡢ 4 ✀㢮ࡢ᥋ྜ᮲௳࡛ᐇ㦂ࢆ⾜ࡗࡓࠋࢩࣙࣝࢲᚄ 25 mmࠊࣉ࣮ࣟࣈ㛗ࡉ 10 mm ࡢ pcBN(ከ⤖ᬗ❧᪉ᬗ❅໬࣍࢘⣲)〇ࡢ FSW ࢶ࣮ࣝࢆ⏝࠸ࡓࠋගᏛ㢧ᚤ㙾࠾ࡼࡧ FE-SEM ࡟ࡼࡾࠊFSW ⥅ᡭ᩿㠃ࡢ࣐ࢡࣟ/࣑ࢡࣟ⤌⧊ࡢほᐹࢆ⾜ࡗࡓࠋEBSD ࡟ࡼࡿ⤖ᬗ᪉఩ゎᯒ࡟ࡼࡾᵓᡂ┦ࠊ┦ศ⋡ࠊ࠾ࡼࡧ⤖ᬗ⢏Ꮚᚄࢆホ౯ࡋࡓࠋẕᮦ࠾ࡼࡧ FSW ⥅ᡭࡢᨩᢾ㒊ࢆษࡾฟࡋࠊᘬᙇヨ㦂࠾ࡼࡧపࢧ࢖ࢡࣝ⑂ປヨ㦂ࢆ⾜ࡗࡓࠋ
3. ᐇ㦂⤖ᯝཬࡧ⪃ᐹ
Fig. 1 ࡟ྛᅇ㌿ᩘ࡟࠾ࡅࡿ FSW⥅ᡭ᩿㠃ࡢගᏛ㢧ᚤ㙾෗┿ࢆ♧ࡍࠋࡍ࡭࡚ࡢ᮲௳࡟࠾࠸࡚ࠊ࣐ࢡࣟ࡞Ḟ㝗ࡣほᐹࡉࢀ࡞࠿ࡗࡓࠋࢶ࣮ࣝࡢᅇ
㌿ᩘ 500 rpm ࡢ㧗ධ⇕ࡢ᮲௳࡛ࡣࠊ
๓㐍ഃࠊᚋ㏥ഃࡢ୧᪉࡟࠾࠸࡚㢧ⴭ
࡞ࣂࣜࡀⓎ⏕ࡋ࡚࠾ࡾࠊᨩᢾ㒊ࡣ୙Ᏻᐃ࡞ᙧ≧࡛࠶ࡗࡓࠋࡲࡓࠊᨩᢾ㒊
Fig. 1 FSW ⥅ᡭ᩿㠃ࡢගᏛ㢧ᚤ㙾෗┿(a) 500 rpm, (b) 200 rpm, (c)150 rpm, and (d) 125 rpm.

− 106 −

඲య࡟Ώࡗ࡚ 1-5 ȝm ࡢ✵㝽ࡀከᩘศᕸࡋ࡚࠸ࡓࠋEDS ศᯒࡢ⤖ᯝ࠿ࡽࠊ✵㝽ෆ㒊࡟ࡣࠊࢶ࣮ࣝᦶ⪖࡟ࡼࡿ

BN ⢏Ꮚࡀෆໟࡉࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ୍᪉ࠊࢶ࣮ࣝᅇ㌿ᩘ 125㹼200 rpm ࡢపධ⇕ࡢ᮲௳࡛ࡣࠊࣂࣜ
ࡶᑡ࡞ࡃᨩᢾ㒊ࡢᙧ≧ࡶᏳᐃࡋ࡚࠸ࡓࠋࡲࡓࠊప ໬࡟ࡼࡾࢶ࣮ࣝᦶ⪖ࡣᢚไࡉࢀࠊ✵㝽ࡢศᕸࡣࠊ୺࡟๓
㐍ഃࡢᨩᢾ㒊ࡢቃ⏺ࡢࡳ࡟㝈ᐃࡋ࡚࠸ࡓࠋᅇ㌿ᩘ 125 rpm ࡢ᮲௳࡛ࡣࠊᨩᢾ㒊ࡢ୰ᚰࡢᖹᆒ⤖ᬗ⢏ᚄࡣࠊẕ
ᮦࡢ 83 ȝm ࠿ࡽ 18 ȝm ࡬࡜ⴭࡋࡃపୗࡋࡓࠋ
Fig. 2 ࡟ẕᮦ࡜ᅇ㌿ᩘ 125 rpm ࡢ᮲௳࡛స〇ࡋࡓ FSW ⥅ᡭࡢᨩᢾ㒊࡟࠾ࡅࡿపࢧ࢖ࢡࣝ⑂ປヨ㦂ࡢ⤖ᯝࢆ♧ࡍࠋẕᮦࠊFSW ⥅ᡭ࡜ࡶ࡟ᛂຊ-ࡦࡎࡳ᭤⥺ࡢࣄࢫࢸࣜࢩࢫ࣮ࣝࣉࡢᙧ≧ࡣࠊ1 ࢧ࢖ࢡࣝࠊࣁ࣮ࣇࢧ࢖
ࢡࣝ࡜ࡶ࡟࡯ࡰྠࡌᙧ≧ࢆ♧ࡋࡓࠋEBSD ࡢ⤖ᯝ࠿ࡽࠊ⑂ປヨ㦂๓ࡣࠊȖ ࣮࢜ࢫࢸࢼ࢖ࢺ༢┦࡛࠶ࡗࡓࡀࠊ
⑂ປヨ㦂ᚋࡣࠊȖ ࣮࢜ࢫࢸࢼ࢖ࢺ┦࡜ İ ࣐ࣝࢸࣥࢧ࢖ࢺ┦ࡢ 2 ┦࠿ࡽᡂࡗ࡚࠾ࡾࠊȖ ┦࡜ İ ┦㛫ࡢኚᙧㄏ㉳
ኚែࡀྍ㏫ⓗ࡟㉳ࡁ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋࢧ࢖ࢡࣝᩘ࡟ᑐࡍࡿࣆ࣮ࢡᙉᗘ(Fig. 2(b))ࡣࠊኚែ࡟ࡼࡿᙳ
㡪࡛ࡸࡸቑຍࡋࠊ◚᩿┤๓ࡲ࡛㧗࠸್ࢆ⥔ᣢࡋࡓࠋẕᮦࠊFSW ⥅ᡭࡢᨩᢾ㒊ࡢ⑂ປᑑ࿨ࡣࠊࡑࢀࡒࢀ 8908
ࢧ࢖ࢡࣝࠊ9723 ࢧ࢖ࢡ࡛ࣝ࠶ࡗࡓࠋẕᮦ࡜ẚ࡭࡚㧗࠸⑂ປᑑ࿨ࢆ♧ࡋࡓࡇ࡜࠿ࡽ⤖ᬗ⢏ࡢᚤ⣽໬ࡀᐤ୚ࡋ
࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ

Fig. 2 (a)ẕᮦ࠾ࡼࡧ FSW ⥅ᡭࡢᨩᢾ㒊࡟࠾ࡅࡿ 1 ࢧ࢖ࢡࣝ(Ⅼ⥺)࠾ࡼࡧࣁ࣮ࣇࢧ࢖ࢡࣝ(ᐇ⥺)࡛ࡢᛂຊ-ࡦࡎࡳ⥺ᅗ. (b)ࢧ࢖ࢡࣝᩘ࡟ᑐࡍࡿࣆ࣮ࢡᙉᗘࡢኚ໬
4. ⤖ㄽ
Fe-15Mn-10Cr-8Ni-4Si ⤌ᡂࡢཌࡉ 10 mm ࡢ FMS 㗰ᯈࢆᑐ㇟࡟ FSW ࡟ࡼࡿ⥅ᡭࡢస〇ࢆ⾜࠸ࠊᚤ⣽⤌⧊ࡢほᐹ࠾ࡼࡧᨩᢾ㒊࡟࠾ࡅࡿᶵᲔⓗ≉ᛶ(ᘬᙇࠊపࢧ࢖ࢡࣝ⑂ປ≉ᛶ)ࡢホ౯ࢆ⾜ࡗࡓࠋ(1) ⛣ື㏿ᗘ 10 mm/minࠊࢶ࣮ࣝᅇ㌿㏿ᗘ 125-500 rpm ࡢ᮲௳ୗ࡛࣐ࢡࣟ࡞Ḟ㝗ࡢ࡞࠸೺඲࡞⥅ᡭࡢస〇ࡀฟ᮶ࡓࠋpcBN ࢶ࣮ࣝࡢᦶ⪖࡟ࡼࡗ࡚ศᩓࡋࡓ BN ⢏Ꮚࡀ⬺ⴠࡋࡓ⤖ᯝࠊ1-5 ȝm ࡢᚤ⣽࡞Ḟ㝗ࡀᙧᡂࡋࡓࡀࠊධ⇕㔞ࡢపୗ࡟ࡼࡾࢶ࣮ࣝᦶ⪖ࡣᢚไࡉࢀࡓࠋ
(2) 125 rpm ࡛స〇ࡋࡓ FSW ⥅ᡭࡢᨩᢾ㒊ࡢ⤖ᬗ(17 ȝm)ࡣẕᮦ(87 ȝm)ࡼࡾࡶᚤ⣽໬ࡋࡓࡀࠊᢤ⇕㔞ࡢ㐪࠸࡟ࡼࡾୗ㒊࡟ྥ࠿࠺࡟ࡘࢀ࡚⤖ᬗ⢏ᚄࡣపୗࡋࡓࠋ
(3) FSW ࡢᨩᢾ㒊ࡣࠊᚤ⣽໬࡟ࡼࡾఙࡧࡣࡸࡸపୗ(66㸣)ࡋࡓࡀࠊẕᮦࡼࡾ㧗࠸ᘬᙇᙉࡉ(759Ma)ࢆ♧ࡋࡓࠋ
FSW ࡢᨩᢾ㒊ࡣࠊẕᮦࡼࡾࡶ㧗࠸ඃࢀࡓపࢧ࢖ࢡࣝ⑂ປᑑ࿨(9723 ࢧ࢖ࢡࣝ)ࢆ♧ࡋࡓࠋ⤖ᬗ⢏ᚄࡢ㐪࠸ࡀ İ ࣐ࣝࢸࣥࢧ࢖ࢺ࡬ࡢ┦ኚែ࡟㛵୚ࡋ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ
ཧ⪃ᩥ⊩[1] T. Sawaguchi et al., Mater. Trans., 57(2016)283. [2] ᰗᵹࡽࠊ⁐᥋Ꮫ఍඲ᅜ኱఍ㅮ₇ᴫせࠊ➨ 108 ᕳ(2021)60.
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 107 −ྫ࿪  ೧  ݆  ೖྫ࿪  ೧ౕ‫ڠ‬ಋ‫ڂݜ‬ๅࠄॽʰ֫༧߻ߑଆࡒྋ͹ຐࡴં߻ٗढ़న༽੓͹඲Ճʱࠅཱི‫֋ڂݜ‬൅๑ਕྖࢢՌָٗढ़‫֋ڂݜ‬൅‫ߑؽ‬࿣ϴॶϓϣʖζϥϱΦϋϩάʖ‫ॶڂݜ‬֫༧߻࿏ࡒྋ‫֋ڂݜ‬൅෨ ֫༧߻࿏ߑଆࡒྋ֋൅ήϩʖϕ໼ᖔ‫࢛ي‬ɼՅ౽ଢҲ࿗ɼ୫ઔദ߃
˖ഐ‫ܢ‬໪దఁ๎ࣻԿߑଆࡒྋΝߑଆࡒྋͳ͢ͱ༽͏ͪϔϧϱίρφࡠ੣Ͷ͕͏ͱͺ༻ંʀં߻෨඲
ՃΝ஦ৼͳͪ͢υʖνϗʖη͹֨ैɼઅ‫ܯ‬͹࠸‫ݗ‬౾Ν਒ΌΖචགྷ͍͗Ζɽ‫ࡑݳ‬͹અ‫ܯ‬ড়݇Ͳͺɼ॑লࣻΝण͜Ζ୊Ҳปۛ๥Ͳఁ๎ࣻԿϓΥϧ΢φ߱ಋ࢞͹༻ં෨͗૟ఈ͠Ηͱ͏Ζ͗ɼ௪৙͹༻ંघஊͲͺ༻մգఖͶΓΖૌ৭รԿ͗‫ݬ‬ҾͲলࣻͶΓΖ੮Կ͗฾ࡒΓΕஸ͚͢୉͚͘͵Ζ͞ͳ͖Δɼߑଆ݊સ੓Ν‫͖ͤڶ‬Ն೵੓͍͗Ζɽͨ͞Ͳຌ‫Ͳڂݜ‬ͺɼ༻մΝ൒Κ͵͏ં߻घ๑Ͳ͍Ζત‫ܙ‬ຐࡴં߻ʤ/):ʥٗढ़Ͷ஥໪͢ɼͨ͹Ԣ༽Ն೵੓Ν‫ݗ‬౾ͤΖ͞ͳΝ໪దͳͤΖɽ
ͨ͞Ͳྫ࿪  ೧ౕͺɼ୉ࡗ୉ָં߻Ռָ‫ॶڂݜ‬Ͷ಍೘͠Ηͪત‫ܙ‬ຐࡴં߻ૹ஖Ν༽͏ͱྫ࿪  ೧ౕΉͲͶࣰࢬͪ͢ఁ๎ࣻԿϓΥϧ΢φ߱ )+ ಋ࢞͹ /): ࢾߨ݃ՎΝಁΉ͓ͱɼҡ͵Ζॵ‫͠ߙغ‬͹ )+ ΝଲেͶં߻ড়݇Ν͠ΔͶ෱߁͚અఈ͢࠹నં߻ড়݇͹୵ࡩΝߨͮͪɽ˖ࣰ‫ݩ‬๏๑
‫ࡒࢾڛ‬ͺর໯͢Իౕড়݇Νร͓Ζ͞ͳͶΓΕ฾ࡒ͹ॵ‫͠ߙغ‬Νรߍͦͪ͠ )+%$
ϐʖφʤ$ ࡒʁ+9ɼ& ࡒʁ+9ɼ' ࡒʁ+9ɼ( ࡒʁ+9ɼ) ࡒʁ+9ʥΝ࢘༽ͪ͢ɽࢾ‫ݩ‬ฤ੉๑ͺ ʹʹPP Ͳ͍ΕɼʹPP ͹໚Νં߻໚ͳͪ͢ɽ/):ড়݇ͺࡤ೧ౕΉͲ͹݃ՎΝ‫خ‬६ͳ͢ɼबഀ਼ +]ɼ৾෱ʸPPɼԣ͢େ PP Ν‫ݽ‬ఈ͢ɼһՅѻྙΝ‫ͳ͟ࡒࢾڛ‬Ͷড়݇Νร͓ͱࣰࢬͪ͢ɽ֐؏ͺΫʖΦϱη੣υζνϩϜ΢έϫη
αʖϕΝ࢘༽͢ͱ ' ؏ࡱΝߨͮͪɽߙ͠ࢾ‫ݩ‬ͺϝςφϦ੣ߙ͠ࢾ‫ݩ‬Ν༽͏ͱɼ ⹛ώϓ‫ݜ‬ຑ࢕৏ͪ͢͝ં߻ରͶଲ͢ͱ՛॑ NJIɼฯ࣍࣎ؔ Vɼ ྽ʤ஦ԟɼ৏Ծ୼෨͖Δ
PPɼં߻ֆ໚͖ΔʸPPɼ ఼྽ʥͲࣰࢬͪ͢ɽ˖݃Վ ਦ  Ͷ֦झড়݇Ͷ͕͜Ζ /): ࢾ‫ݩ‬ର͹֐؏ࣺਇΝࣖͤɽં߻ର͹֐؏ͺં߻͗෈ॉ෾͵− 108 −

ં߻ରͳྒྷ޹͵ં߻ର͹ҩ͏͗໎ྐͶ೟ΌΔΗͪɽં߻͗෈ॉ෾͵ં߻ର͹֐؏ͺં߻෨͹੟Ε৏͗Ε͗෈ଏ͢ͱ͏Ζ͞ͳ͗໎Δ͖Ͳ͍ͮͪɽΉͪಋਦͶ͕͏ͱɼં߻ର͹ં߻෨͹੟Ε৏͗ΕͶͯ͏ͱ඲Ճͪ݃͢ՎΝࣖͤɽྒྷ޹͵ં߻ର͹੟Ε৏͗Εྖͺ༁ ʛPP Ͳ͍ΕɼҲ๏Ͳં߻͗෈ྒྷ͵ં߻ର͹੟Ε৏͗Εྖͺ༁ ʛPP ͳ͵ͮͱ͕Εɼ੟Ε৏͗Εྖ͗ PP າຮͳ͵Ζͳં߻෈ྒྷͶ͵Ζܑ޴Νಚͪɽ କ͏ͱɼਦ  Ͷ /): ં߻ର͹ߙ͠ࢾ‫݃ݩ‬Վ͹ҲྭΝࣖͤɽં߻ରͶΓͮͱͺં߻෨෉ۛ
ͲೊԿҮ‫ߙ;ٶ‬ԿҮ֮͗೟͠Ηɼߙ͠൥ҕʤ࠹ঘʛ࠹୉ʥͺ $ ࡒͲͨΗͩΗ ʛ+9ɼʛ+9ɼ& ࡒͲͨΗͩΗ ʛ+9ɼʛ+9ɼ' ࡒͲͨΗͩΗ ʛ+9ɼʛ+9ɼ( ࡒͲͨΗͩΗ ʛ+9ɼʛ+9ɼ) ࡒͲͨΗͩΗ ʛ+9ɼʛ+9 Ͳ͍ͮͪɽೊԿҮΏߙԿҮ͹รԿྖͶͯ͏ͱɼॵ‫͠ߙغ‬͹໎ྐ͵ғଚ੓ͺ֮೟Ͳ͘͵͖ͮͪɽ ࠹‫ޛ‬ͶɼһՅѻྙͳ‫ࡒࢾڛ‬͹ॵ‫͠ߙغ‬͹‫ܐؖ‬Νਦ  Ͷࣖͤɽ͞͹ਦͶͺ֐؏৏͹ྒྷ͢ѳ͢‫ ;ٶ‬/): ં߻‫ޛ‬͹ߙ͠৏তΝญͦͱࣖ͢ͱ͏ΖɽΉͪ͞͹ਦͶͺգ‫ڊ‬Ͷࣰࢬͪ͢ /):ં߻ର͹݃Վʤ% ࡒʁ+9ʥΝΉͳΌͱਦࣖͪ͢ɽਦ͖Δ໎Δ͖͵Γ͑Ͷɼ‫ࡒࢾڛ‬͹ॵ‫غ‬ߙ͠߶͏Άʹ֐؏৏͹‫ͪݡ‬໪͗ྒྷ͏݃ՎΝಚͪɽΉͪɼߙ͠͹৏ত͗ཊ͓ΔΗͱ͏ΖһՅѻྙ͹൥ҕͺ‫͚ڳ‬ɼಝͶॵ‫͗͠ߙغ‬ఁ͏Άʹߙ͠͹৏ত͗ॉ෾Ͷཊ͓ΔΗͱ͏ΖһՅѻྙ͹൥ҕͺ߁͚͵Ζ͞ͳΝ֮೟ͪ͢ɽ˖ΉͳΌ ֦झં߻ড়݇Ͷ͕͜Ζఁ๎ࣻԿϓΥϧ΢φ߱ )+%$ ࡒΝ༽͏ͪ /): ં߻ରͶଲ͢֐؏؏ࡱΝࣰࢬͪ͢ɽͨ͹݃Վɼં߻ড়݇ͶΓΕ֐؏৏͹ં߻͹ྒྷ͢ѳ͗͢໎ྐͶ֮೟͠Ηɼ͞Ηͺࡒྋͨ͹΍͹͹‫ౕک‬Ͷ‫͏ͱ͢ܐؖ‬Ζͳߡ͓ΔΗΖɽͪͫ͢ɼߙ͠ࢾ‫ݩ‬͹݃Վ͖ΔҲ෨͹ં߻ରͶ͕͏ͱೊԿҮ‫ߙ;ٶ‬ԿҮ͗೟ΌΔΗͪ͗ɼॵ‫͠ߙغ‬͹ғଚ੓ͺ໎ྐͲͺ͵͖ͮͪɽ֐؏৏͹ྒྷ͠‫͠ߙ;ٶ‬͹৏ত͗ཊ͓ΔΗͱ͏Ζ൥ҕͺॵ‫͏߶͗͠ߙغ‬Άʹ‫͚ڳ‬ɼఁ͏Άʹ߁͚͵ͮͱ͏Ζ͞ͳ֮͗೟Ͳͪ͘ɽ͞͹݃ՎΝ༽͏Ζ͞ͳͶΓΕߙ͠ࢾ‫ݩ‬Νࣰࢬͦͥͳ
΍ં߻෈ྒྷ͹ࢾ‫ݩ‬ର͹൓இ͗Ն೵ͳߡ͓ͱ͏Ζɽ ࠕ‫ޛ‬ͺɼӀ௃‫;ٶ‬εϡϩϒʖুܺࢾ‫ݩ‬Νߨ͏ɼ‫ؽ‬փదಝ੓ͳ͹૮‫ܐؖؖ‬Ͷͯ͏ͱ໎Δ͖ͶͤΖ͞ͳͲɼΓΕϫώηφ͵ /): ড়݇ΝߞΕࠒΞͲ͏͚ɽ
− 109 −










ਦ  /): ં߻ର͹֐؏ͳන໚ϕϫϓΟ΢ϩ͹෾ੵ݃Վ͹Ҳྭʤࠪ৏ʁ$ ࡒһՅѻྙ03Dɼӊ৏ʁ& ࡒһՅѻྙ 03DɼࠪԾʁ' ࡒһՅѻྙ 03DɼӊԾʁ( ࡒһՅѻྙ 03Dʥ− 110 −ਦ  /): ં߻ରʤં߻෨͗༁ PP ͹Ғ஖Ͷ֚౲ʥ͹ߙ͠ࢾ‫݃ݩ‬Վ͹Ҳྭʤࠪ৏ʁ$ ࡒһՅѻྙ 03Dɼӊ৏ʁ& ࡒһՅѻྙ 03DɼࠪԾʁ' ࡒһՅѻྙ 03DɼӊԾʁ(ࡒһՅѻྙ 03Dʥਦ  һՅѻྙɼॵ‫͠ߙغ‬ɼ/): ં߻‫ޛ‬͹֐؏‫͠ߙ;ٶ‬৏ত͹‫ܐؖ‬ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁં߻ֆ໚‫ָߑؽ‬෾໼ʥ− 111 −

ᦶ᧿ᨩᢾࣉࣟࢭࢫࢆ⏝࠸ࡓపⅣ⣲㗰ࡢ⿵ಟ࡟㛵ࡍࡿ◊✲㱟㇂኱Ꮫ ⌮ᕤᏛ◊✲⛉ ᶵᲔࢩࢫࢸ࣒ᕤᏛᑓᨷ㛗㇂ᕝ ⿱௓㻝㻚 ⥴ゝ㧗⤒ᖺ໬࡟ࡼࡗ࡚⑂ປࡁ⿣࡞࡝ࡢᦆയࡀⓎ⏕ࡋࡓከࡃࡢᶫᱱ࡞࡝࡟ᑐࡍࡿ⿵ಟ⿵ᙉࡀ㐍ࡵࡽࢀ࡚࠸ࡿ㸬⿵ಟ⿵ᙉ࡟ࡣ㸪࣎ࣝࢺῧ᥋ࡸ⁐⼥⁐᥋࡞࡝ࡢ㑅ᢥ⫥ࡀ࠶ࡿ  㸬ᡃࠎࡣ㸪᪂ࡋ࠸⿵ಟ⿵
ᙉᢏ⾡࡜ࡋ࡚ᦶ᧿ᨩᢾࣉࣟࢭࢫ )ULFWLRQ 6WLU 3URFHVVLQJ  )63 ࢆᥦ᱌ࡍࡿࡇ࡜ࢆ⪃࠼࡚࠸ࡿ㸬)63 ᪋ᕤ࡟ࡼࡾ㸪࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢ✺ྜࡏ㛫ࡢࢠࣕࢵࣉࢆᇙࡵࡿ࡜ྠ᫬࡟㸪ฎ⌮㒊ࡢ⤖ᬗ⢏ᚤ⣽໬ࡀྍ⬟࡛࠶ࡿ㸬ࡋ࠿ࡋ㸪㕲㗰ᮦᩱ࡟࠾ࡅࡿ㐺⏝ࡸฎ⌮ᮦࡢ⑂ປᙉᗘ࡟㛵ࡍࡿ▱ぢࡀ࡯࡜ࢇ࡝࡞࠸㸬ᮏ◊✲࡛ࡣ㸪ࡁ⿣ࢆᶍࡋࡓ⁁ࢆ௜୚ࡋࡓపⅣ⣲㗰࡟ᑐࡋ࡚ )63 ࢆ᪋ࡋ㸪⁁ࡢ⿵ಟ≧ἣࡸฎ⌮ᮦࡢ⑂ປᙉᗘࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬㻞㻚㻌 ᐇ㦂᪉ἲ౪ヨᮦࡣ㸪పⅣ⣲㗰 SM490A㸦12 mm ཌ㸧࡛࠶ࡿ㸬౪ヨᮦ୰ኸ㒊࡟ࡁ⿣ࢆᶍࡋࡓ⁁ຍᕤࢆ⾜ࡗࡓ㸬⁁ᑍἲࡣ㸪ᖜ 0.5㸪1.0 mm㸪῝ࡉ 1.0㸪1.5 mm ࢆ⤌ࡳྜࢃࡏࡓ 4 ✀㢮࡛࠶ࡿ㸬FSP ࡢ᪋ᕤ᮲௳ࡣ㸪ࢶ࣮ࣝᅇ㌿ᩘ 650 rpm㸪᥋ྜ㏿ᗘ 100 mm/min㸪ຍᅽຊ 1200 kg ࡛࠶ࡿ㸬ࢶ࣮ࣝᮦ㉁ࡣ❅໬ࢣ࢖⣲㸪ࣉ࣮ࣟࣈ㛗 1.8 mm ࡛࠶ࡿ㸬
FSP ⿵ಟᚋ㸪ヨ㦂∦㸦௨ୗ㸪⿵ಟᮦ㸧ࡢ᩿㠃ほᐹ࠾ࡼࡧࣅࢵ࣮࢝ࢫ◳ࡉᐃࢆᐇ᪋ࡋࡓ㸬ࡲࡓ㸪⑂ປヨ㦂∦ࢆ⿵ಟᮦࡼࡾษࡾฟࡋ㸪3 Ⅼ᭤ࡆ⑂ປヨ㦂࡟౪ࡋࡓ㸬㻟㻚㻌 ᐇ㦂⤖ᯝཬ䜃⪃ᐹ㻟㻚㻝 ⿵ಟᮦࡢ⾲㠃࠾ࡼࡧ᩿㠃ほᐹ⿵ಟᮦ㸦⁁ᑍἲ㸸ᖜ 1.0 mm῝ࡉ 1.5 mm㸧ࡢ⾲㠃࠾ࡼࡧ᩿㠃ほᐹ⤖ᯝࢆ Fig.1 ࡟♧ࡍ㸬Fig.1
ࡼࡾ㸪⿵ಟᮦࡢ⾲㠃࠾ࡼࡧ᩿㠃࡟࠾࠸࡚㸪⁁≧ࡶࡋࡃࡣࢺࣥࢿࣝ≧ࡢ㐃⥆ⓗ࡞Ḟ㝗ࡣぢࡽࢀ࡞࠿ࡗࡓ㸬࡞࠾㸪඲࡚ࡢ⁁ᑍἲࡢ⿵ಟᮦ࡟࠾࠸࡚ࡶྠᵝࡢ⤖ᯝ࡛࠶ࡗࡓ㸬௨ୖ࠿ࡽ FSP ᪋ᕤ࡟ࡼࡾ㸪ᖜ 1.0 mm῝ࡉ 1.5 mm ࡲ࡛ࡢࡁ⿣ࡀᏑᅾࡍࡿపⅣ⣲㗰ࡢ⿵ಟࡀྍ⬟࡛࠶ࡿ࡜࠸࠼ࡿ㸬

Fig. 1

Observation of surface and cross section of repaired specimen.

− 112 −

㻟㻚㻞 ⿵ಟຠᯝ࠾ࡼࡧ⁁ᑍἲ࡜⑂ປᙉᗘࡢ㛵ಀ⁁ᖜࡀ⿵ಟ࡟୚࠼ࡿᙳ㡪ࢆㄪᰝࡍࡿࡓࡵ㸪⁁῝ࡉࡀྠࡌ࡛࠶ࡾ㸪⁁ᖜࡢ␗࡞ࡿ㸦0.5㸪1.0 mm㸧
2 ✀㢮ࡢ⿵ಟᮦࡢ 3 Ⅼ᭤ࡆ⑂ປヨ㦂⤖ᯝࢆ Fig.2 ࡟♧ࡍ㸬Fig.2 ࡢᶓ㍈ࡣ⧞ࡾ㏉ࡋᩘ㸪⦪㍈ࡣᛂຊ᣺ᖜ࡛࠶ࡿ㸬ẚ㍑ᮦ࡜ࡋ࡚㸪ẕᮦ࠾ࡼࡧ⿵ಟ๓ࡢヨ㦂∦ࡢ⑂ປヨ㦂ࡶᐇ᪋ࡋࡓ㸬ᛂຊ᣺ᖜ 350 MPa
࡟࠾ࡅࡿ⿵ಟ๓㸪⿵ಟᚋ࠾ࡼࡧẕᮦࡢ◚᩿⧞ࡾ㏉ࡋᩘࢆẚ㍑ࡍࡿ㸬⿵ಟ๓ࡢヨ㦂∦࠾ࡼࡧẕᮦࡢ◚᩿⧞ࡾ㏉ࡋᩘࡣ㸪ࡑࢀࡒࢀ㸪⣙ 7.5103㸪1.3104 ᅇ࡛࠶ࡗࡓ㸬୍᪉㸪⿵ಟᮦࡣ࠸ࡎࢀࡶ㸪⧞
ࡾ㏉ࡋᩘ 2.0106 ᅇࡲ࡛ᮍ◚᩿࡛࠶ࡾ㸪⑂ປᑑ࿨ࡣ⿵ಟ๓ࡢヨ㦂∦ࡼࡾᨵၿࡋࡓ㸬ࡇࢀࡣ FSP ᪋ᕤ࡟ࡼࡿࡁ⿣ࡢ⿵ಟຠᯝࡀⓎ⌧ࡋࡓࡓࡵ࡜⪃࠼࡚࠸ࡿ㸬ḟ࡟ẕᮦ࠾ࡼࡧᨩᢾ㒊ࡢᚤ⣽⤌⧊ࢆ
Fig.2㸦a㸧㸪㸦b㸧࡟♧ࡍ㸬ࣇ࢙ࣛ࢖ࢺ࡜ࣃ࣮ࣛ࢖ࢺ࡛ᵓᡂࡉࢀࡿẕᮦ⤌⧊ࡣ㸪⿵ಟᕤ⛬ࢆ⤒ࡿࡇ࡜࡛┦ኚែࡀ⏕ࡌ㸪ࣇ࢙ࣛ࢖ࢺ࡜࣋࢖ࢼ࢖ࢺ࡜࡞ࡗࡓ㸬࡞࠾㸪FSP ᪋ᕤࢆ᪋ࡍࡇ࡜࡛ฎ⌮㡿ᇦࡢ⤌⧊ࡀᑠࡉࡃ࡞ࡿࡇ࡜ࡶሗ࿌ࡉࢀ࡚࠸ࡿ 2)㸬ୖ㏙ࡋࡓ┦ኚែࡸ⤌⧊ࡢᚤ⣽໬ࡀ㸪⿵ಟ㒊ࡢ⑂ປᙉᗘ
ྥୖ࡟㉳ᅉࡋ࡚࠸ࡿ࡜⪃࠼࡚࠸ࡿ㸬2 ✀㢮ࡢ⿵ಟᮦࡢ⑂ປᑑ࿨ࡣẕᮦࡸ⿵ಟ๓ࡢヨ㦂∦ࡼࡾࡶᨵၿࡉࢀࡓࡀ㸪⿵ಟ๓ࡢ⁁ᖜ࡟ࡼࡾ⑂ປᑑ࿨ࡀ␗࡞ࡗࡓ㸬㗰ᮦࡢᦶ᧿ᨩᢾ᥋ྜ࡟࠾࠸࡚㸪ࢠࣕࢵࣉᖜࡀᗈࡀࡿ࡜㐃⥆ⓗ࡞Ḟ㝗࡛ࡣ࡞ࡃ㸪୙㐃⥆࡞ᚤᑠḞ㝗ࡀ᥋ྜ㒊ෆ࡟ṧ␃ࡍࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿ 3)㸬ᮏ◊✲࡟࠾࠸࡚ࡶ㸪Fig.1
࡟♧ࡍࡼ࠺࡟඲࡚ࡢ⿵ಟᮦࡢ᩿㠃ほᐹ࡟࠾࠸࡚㐃⥆ⓗ࡞Ḟ㝗ࡣぢࡽࢀ࡞࠸ࡶࡢࡢ㸪౛࠼ࡤ⁁ᖜ
1.0 mm ࡢ⿵ಟ㒊࡟୙㐃⥆࡞ᚤᑠḞ㝗ࡀṧ␃ࡍࡿࡇ࡜࡛㸪ࡑࢀࡽࡀᛂຊ㞟୰㒊࡜࡞ࡾ㸪⑂ປᑑ࿨࡟ᙳ㡪ࢆ୚࠼ࡓྍ⬟ᛶࢆ⪃࠼࡚࠸ࡿ㸬

Fig. 2 Fatigue strength and microstructure of base metal and stir zone.

ཧ⪃ᩥ⊩㻌(1)ୖ㔝ࡽ㸪⁐᥋Ꮫ఍ㄽᩥ㞟 ➨ 29 ᕳ 4 ྕ㸪267-273(2011)
(2)໭ᮧࡽ㸪⁐᥋Ꮫ఍ㄽᩥ㞟 ➨ 33 ᕳ 1 ྕ㸪29-33(2015)
(3)᳃ࡽ㸪⁐᥋Ꮫ఍඲ᅜ኱఍ㅮ₇ᴫせ㸪328-329(2023)

㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧

− 113 −

ึᮇⓎἻᚋࡢᮍศゎⓎἻ๣ࢆά⏝ࡋࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ෌ⓎἻ⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛㧘ᮌᶞ㸪༙㇂⚞ᙪ㸪㕥ᮌⰋ♸1㸬┠ⓗ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘㸦Al㸧ࡣ㸪ෆ㒊࡟ከᩘࡢẼᏍࢆ᭷ࡍࡿከᏍ㉁㔠ᒓ࡛࠶ࡾ㸪ྠᮦ㉁ࡢ⦓ᐦᮦ࡜ẚ㍑ࡋ࡚㍍㔞࡛⾪ᧁ྾཰ᛶ࡞࡝࡟ඃࢀࡓ≉ᚩࢆᣢࡘࠋࡇࢀࡽࡢ≉ᚩ࠿ࡽ㸪࣏࣮ࣛࢫ Al ࢆ⮬ື㌴࡞࡝ࡢᵓ㐀⏝㒊ᮦ࡟฼⏝ࡍࡿࡇ࡜࡛㸪Ᏻ඲ᛶࢆಖᣢࡋࡓࡲࡲ
㍍㔞໬ࡍࡿࡇ࡜ࡀ࡛ࡁ㸪⇞㈝ࡢྥୖࡀᮇᚅ࡛ࡁࡿࠋࡓࡔࡋ㸪࣏࣮ࣛࢫ Al ࡣ୍ᗘ⾪ᧁࢆ྾཰ࡋ࡚₽ࢀ࡚ࡋࡲ࠺࡜㸪ẼᏍࢆᙧᡂࡋ࡚
࠸ࡓෆ㒊ࡢࢭࣝቨࡀ◚ቯࡉࢀ࡚ࡋࡲ࠺ࡓࡵ㸪෌฼⏝ࡀᅔ㞴࡞Ⅼࡀㄢ㢟࡜࡞ࡗ࡚࠸ࡿࠋࡑࡢࡓࡵ㸪ኚᙧࡀ⏕ࡌࡓ࣏࣮ࣛࢫ Al ࢆ෌ⓎἻࡉࡏࡿࡇ࡜ࡀ࡛ࡁࢀࡤ㸪෌฼⏝ࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡾ㸪ᮦᩱࡢపࢥࢫࢺ໬ࡸᛂ⏝ࡢᖜࡀᗈࡀࡿ࡜⪃࠼ࡽࢀࡿࠋ
㐣ཤࡢ◊✲࡛ࡣ㸪ࣉ࣮ࣜ࢝ࢧἲࢆ⏝࠸࡚స〇ࡋࡓ࣏࣮ࣛࢫ Al ෆ࡟ṧᏑࡍࡿᮍศゎࡢⓎἻ๣ࢆ฼⏝ࡋ㸪෌ⓎἻࡀྍ⬟࡛࠶ࡿࡇ࡜
ࡀ♧ࡉࢀ࡚࠸ࡿࠋࡓࡔࡋ㸪෌ⓎἻ᫬࡟ࡣⓎἻ๣࠿ࡽⓎ⏕ࡋࡓ࢞ࢫࡀヨᩱ࠿ࡽᢤࡅ࡞࠸ࡼ࠺࡟⦓ᐦ໬ࢆᅗࡿᚲせࡀ࠶ࡿࠋⴭ⪅ࡽࡢ㐣ཤࡢ◊✲࡛ࡣ㸪ᅽ⦰ኚᙧᚋ࡟ᦶ᧿ᨩᢾࣉࣟࢭࢫ㸦FSP㸧࡟ࡼࡗ࡚⦓ᐦ໬ࢆᅗࡾ㸪ຍ⇕ⓎἻࡉࡏࡿࡇ࡜࡛෌ⓎἻࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧ࡉࢀ࡚࠸ࡿࠋࡓࡔࡋ㸪ᮍศゎࡢⓎἻ๣ࢆ฼⏝ࡋ࡚ఱᅇ⧞ࡾ㏉ࡋ࡚෌ⓎἻࡀྍ⬟࠿᫂ࡽ࠿࡟࡞ࡗ࡚࠸࡞࠸ࠋ
ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ࣉ࣮ࣜ࢝ࢧἲ࡟ࡼࡾస〇ࡋࡓ࣏࣮ࣛࢫ Al ࢆᅽ⦰ࡋ㸪FSP ࢆ⏝࠸࡚⦓ᐦ໬ࡋࡓࡶࡢࢆຍ⇕ࡍࡿࡇ࡜࡛㸪෌ⓎἻࡉࡏࡓ࣏࣮ࣛࢫ Al ࡟ᑐࡋ㸪෌ᗘᅽ⦰ኚᙧ࡜ FSP ࢆ⾜ࡗ࡚⦓ᐦ໬ࡉࡏ㸪෌ⓎἻ᫬࡟ṧᏑࡋ࡚࠸ࡿⓎἻ๣ࢆ฼⏝ࡋ࡚෌ࠎⓎἻࢆヨࡳࡓࠋࡲࡓ X ⥺ᅇᢡ⿦⨨㸦XRD㸧ࢆ⏝࠸࡚ึᮇⓎἻᚋ࡟ṧᏑࡍࡿᮍศゎⓎἻ๣ࡢ☜ㄆࢆ⾜ࡗࡓࠋ2㸬◊✲᪉ἲ
ࡲࡎᮏ◊✲࡛ࡣࣉࣜ࢝̿ࢧࡢస〇࡟ FSP ἲࢆ⏝࠸ࡓࠋẕᮦAl ࡜ࡋ࡚ A1050㸦ᕤᴗ⏝⣧ Al㸧ᯈᮦࢆ 2 ᯛ⏝࠸㸪ⓎἻ๣࡜ࡋ࡚Ỉ⣲໬ࢳࢱࣥ㸦TiH2㸧⢊ᮎ㸪ẼᏍᙧែᏳᐃ๣࡜ࡋ࡚࢔ࣝ
࣑ࢼ㸦Al2O3㸧⢊ᮎࢆ⏝࠸ࡓࠋྛ⢊ᮎࡣ㸪Fig. 1 (a)࡛♧ࡍࡼ࠺࡟ TiH2 ࡜ Al2O3 ࢆᩓᕸࡋ࡚ᯈᮦ࡟ᣳࡳ㎸ࡳ㸪኱Ẽ୰࡛ FSW
ࢆ⾜ࡗࡓ㸦Fig. 1 (b)㸧ࠋᮏᐇ㦂࡛ࡣࡇࡢᯈᮦࢆࣉ࣮ࣜ࢝ࢧ࡜ࡋ
࡚㸪ࣁࣟࢤࣥࣛࣥࣉ࡟ࡼࡿගຍ⇕ࢆ⏝࠸࡚࣏࣮ࣛࢫ Al ࡢస〇ࢆ⾜ࡗࡓࠋගຍ⇕ࢆ㛤ጞᚋ㸪ࣉ࣮ࣜ࢝ࢧୖࡢᦶ᧿ᨩᢾ㒊ࡀ
ⓎἻࡋ࡚࠸ࡁ㸦Fig. 1(c)㸧
㸪ⓎἻࡀṆࡲࡗࡓࡇ࡜ࢆ┠ど࡛☜ㄆᚋ㸪ຍ⇕ࢆṆࡵ࡚࣏࣮ࣛࢫ Al ࢆᚓࡓࠋḟ࡟㸪ᚓࡽࢀࡓ࣏࣮ࣛࢫ Al ࡟ᑐࡋ࡚ Fig. 1 (d)࡛♧ࡍࡼ࠺࡟ᅽ⦰ヨ㦂⿦⨨ࢆ⏝࠸࡚ᅽ⦰ࢆ⾜ࡗࡓࠋࡇࡢ࡜ࡁ㸪ࢡࣟࢫ࣊ࢵࢻ㏿ᗘ
5 mm/min ࡢ᮲௳࡛㸪ᅽ⦰⿦⨨ࡢ᭱኱Ⲵ㔜㸦90 kN ⛬ᗘ㸧ࡲ࡛ᅽ⦰ࢆ⾜ࡗࡓ࡜ࡇࢁ㸪ཌࡉࡣ⣙ 7 mm ࡜࡞ࡗࡓࠋࡇࡢᅽ⦰࡟ࡼࡾ㸪ෆ㒊࡟࠶ࡿẼᏍ࡞࡝ࢆ₽ࡋ࡚࣏࣮ࣛࢫ Al 㒊ࡢ⦓ᐦ໬ࢆᅗࡗࡓࠋࡑࡢᚋ㸪ࡉࡽ࡟⦓ᐦ໬ࢆᅗࡿࡓࡵ㸪Fig. 1 (e)࡛♧ࡍࡼ࠺࡟ᅽ⦰ࡋ
ࡓ࣏࣮ࣛࢫ Al 㒊ࡢ㡿ᇦ࡟ᑐࡋ࡚ FSP ࢆ⾜࠸㸪ึᮇⓎἻ࡜ྠᵝࡢ᮲௳࡛ගຍ⇕࡟ࡼࡾ㸪࣏࣮ࣛࢫ Al ࡢ෌ⓎἻࢆ⾜ࡗࡓ㸦Fig. 1 (f)㸧ࠋྠᵝ࡟ࡋ࡚㸪෌ⓎἻࡉࡏࡓ࣏࣮ࣛࢫ Al ࡟ᑐࡋ࡚ࡶ෌ᗘᅽ⦰࠾ࡼࡧ FSP ࢆ⾜࠸㸪ຍ⇕ࢆ⾜࠺ࡇ࡜࡛෌ࠎⓎἻࢆヨࡳࡓࠋ3㸬ᐇ㦂⤖ᯝ
Fig. 2 (a)㹼(f)࡟ヨᩱࡢึᮇⓎἻ㸦1st foaming㸧㸪෌ⓎἻ㸦2nd foaming㸧㸪෌ࠎⓎἻ㸦3rd foaming㸧ࡢᵝᏊࢆ♧ࡋ㸪Fig. 2 (g)㹼(i)࡟
ⓎἻᚋࡢヨᩱࡢእほᅗ㸪Fig. 2 (j)㹼(o)࡟ X ⥺ CT ⏬ീࢆ♧ࡍࠋࡲࡎ Fig. 2 (a)㹼(i)ࡼࡾ㸪3 ᗘ┠ࡢⓎἻ⮬యࡣほᐹࡉࢀࡓࡀ㸪ึᮇⓎἻ㸪෌ⓎἻ࡜ẚ࡭࡚ⓎἻ㔞ࡀᑠࡉࡃ࡞ࡗ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋFig. 2 (j)㹼(o)ࡢ X ⥺ CT ⏬ീ࡛ෆ㒊ࢆࡳࡿ࡜㸪ࡲࡎึᮇⓎἻ࡛

− 114 −

ࡣ⣽࠿࠸ẼᏍࡀᆒ➼࡟ศᕸࡋ࡚࠸ࡿࡇ࡜ࡀほᐹࡉࢀࡓࠋࡑࢀ࡟
ᑐࡋ㸪෌ⓎἻ࡛ࡣⓎἻ㔞⮬య࡟኱ࡁ࡞ኚ໬ࡣ࡞࠸ࡀ㸪⢒኱໬ࡋࡓẼᏍࡸ⣽࠿࠸ẼᏍࡀΰᅾࡋ࡚ᗈࡃศᕸࡉࢀ࡚࠸ࡿࡇ࡜ࡀほᐹࡉࢀࡓࠋࡑࡋ࡚෌ࠎⓎἻ࡛ࡣ㸪෌ⓎἻ࡜ྠ⛬ᗘࡢẼᏍศᕸ࡜࡞ࡗ࡚࠸ࡿࡀ㸪ⓎἻ㔞⮬యࡀᑠࡉࡃ㸪ẼᏍ≧ែࡶᏳᐃࡋ࡚࠸࡞
࠸ࡇ࡜ࡀほᐹࡉࢀࡓࠋ෌ⓎἻ㸪෌ࠎⓎἻ᫬࡟ẼᏍࡀ⢒኱໬ࡋ࡚ࡋࡲ࠺ཎᅉ࡜ࡋ࡚ࡣ㸪ึᮇⓎἻࡢຍ⇕࡟ࡼࡗ࡚ⓎἻ๣࡛࠶ࡿ
TiH2 ࡀᙳ㡪ࢆཷࡅࡓࡇ࡜ࡀཎᅉࡔ࡜⪃࠼࡚࠾ࡾ㸪௒ᚋࡢᐇ㦂࡞࡝࡛᫂ࡽ࠿࡟ࡋ࡚࠸ࡁࡓ࠸࡜⪃࠼࡚࠸ࡿࠋ
ḟ࡟㸪ึᮇⓎἻᚋࡢᮍศゎࡢⓎἻ๣ࢆ☜ㄆࡍࡿࡓࡵ㸪ヨᩱ࡟ᑐࡋ࡚ XRD ࡟ࡼࡿྠᐃࢆ⾜ࡗࡓ㸦Cu-KȘ㸪40 kV㸪40 mA㸧
ࠋ
Fig. 3 ࡟ึᮇⓎἻ๓࡜෌ⓎἻ๓ࡢࡑࢀࡒࢀࡢヨᩱ᩿㠃࡛ࡢ X ⥺ᅇᢡࣃࢱ࣮ࣥࢆᣑ኱ࡋࡓࡶࡢࢆ♧ࡍࠋࡇࡢᅗࡼࡾ㸪ึᮇⓎἻᚋ
࡟ࡶⓎἻ๣࡛࠶ࡿ TiH2 ࡢࣆ࣮ࢡࡀ᳨ฟࡉࢀࡓࠋࡲࡓⓎἻ๓ᚋ
࡛ TiH2 ࡢࣆ࣮ࢡ࡟኱ࡁ࡞ኚ໬ࡣ࡞ࡃ㸪ึᮇⓎἻᚋ࡟ᮍศゎࡢ
TiH2 ࡀṧᏑࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡢࡓࡵ㸪୍ᗘࡢⓎἻ࡛ࡣ
ⓎἻ๣ࡀ኱ࡁࡃᾘ㈝ࡉࢀ࡚࠸࡞࠸ࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ
4. ⤖ゝᮏ◊✲࡛ࡣ㸪
ࣉ࣮ࣜ࢝ࢧἲ࡛స〇ࡋࡓ࣏࣮ࣛࢫ Al ࡟ᑐࡋ࡚㸪ᅽ⦰࠾ࡼࡧ FSP ࡟ࡼࡾ⦓ᐦ໬ࢆᅗࡾ㸪ຍ⇕ࡍࡿࡇ࡜࡛㸪ᮦᩱෆࡢᮍศゎࡢⓎἻ๣ࢆ฼⏝ࡋࡓ࣏࣮ࣛࢫ Al ࡢ෌ⓎἻ㸪෌ࠎⓎἻࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧ࡏࡓࠋࡲࡓ㸪୍ᗘࡢⓎἻ࡛ࡣⓎἻ๣ࡣ኱ࡁࡃᾘ㈝ࡉࢀࡎ㸪ᮍศゎࡢⓎἻ๣ࡀከࡃṧᏑࡍࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ

ㅰ㎡
ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 115 −

A1050 ࠾ࡼࡧ A6061 ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢᶵᲔᏛ⩦࡟ࡼࡿᙉᗘண
⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛໭ཎᝆ┿㸪ᆏཱྀ⿱ᶞ㸪༙㇂⚞ᙪ1㸬┠ⓗ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆⓎἻ࡟ࡼࡾస〇ࡍࡿሙྜ㸪ẼᏍ⋡ࡀᆒ୍࡟࡞ࡾ࡟ࡃ࠸ࡓࡵ㒊ศࡈ࡜࡟ᙉᗘࡀኚ໬ࡋ࡚ࡋࡲ࠸࣏࣮ࣛࢫ
࢔࣑ࣝࢽ࣒࢘〇ရ඲యࡢᙉᗘண ࡣᅔ㞴࡛࠶ࡿ㸬ࡲࡓẕᮦෆ㒊࡛ྜ㔠ࡢ✀㢮ࡸẼᏍᙧែࢆ㐃⥆ⓗ࡟ኚ໬ࡉࡏࡿࡇ࡜࡛ഴᩳᶵ⬟ࢆ௜୚ࡋࡓࠕഴᩳᶵ⬟࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࠖࡢሙྜ࡛ࡣ㸪ࡑࡢᙉᗘண ࡣࡼࡾᅔ㞴࡜࡞ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆ〇ရẖ㸪㒊ศẖ࡟㠀◚ቯ࡛ࡑࡢᙉᗘࢆ ᐃࡍࡿ᪉ἲ࡜ࡋ࡚㸪ᶵᲔᏛ⩦ࢆ⏝࠸ࡓᙉᗘண ἲࢆ᳨ウࡍࡿ㸬࣏࣮ࣛࢫ࢔࣑ࣝ
ࢽ࣒࢘ࡢ X ⥺ CT ⏬ീ࡜㸪ᅽ⦰ヨ㦂࡟ࡼࡾồࡵࡽࢀࡓᙉᗘࢆࢭࢵࢺ࡛Ꮫ⩦ࡉࡏࡿࡇ࡜࡛㸪ูࡢ X ⥺ CT ⏬ീࡢࡳ࠿ࡽࡑࡢᙉᗘࢆண ࡍࡿࡇ࡜ࡀᮏ◊✲ࡢ┠ⓗ࡛࠶ࡿ㸬2 ✀㢮ࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࠿ࡽ࡞ࡿ 2 ᒙᵓ㐀ࡢഴᩳᶵ⬟࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢᙉᗘண ࢆ⾜࠺ࡇ࡜ࢆ᝿ᐃࡋ㸪ࡑࡢ๓ẁ㝵࡜ࡋ࡚㸪2 ✀㢮ࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡑࢀࡒࢀ༢యࡢᙉᗘண ࢆヨࡳࡓ㸬
2㸬◊✲᪉ἲ
ࣉ࣮ࣜ࢝ࢧࡢస〇ࡣᦶ᧿ᨩᢾἲ࡟ࡼࡾ⾜ࡗࡓ㸬స〇࡟ࡣ A1050㸦ᕤᴗ⏝⣧࢔࣑ࣝࢽ࣒࢘㸧࠾ࡼࡧ A6061㸦Al-Mg-Si ⣔㸧ᅽᘏᮦ㸪
ⓎἻ๣࡜ࡋ࡚Ỉ⣲໬ࢳࢱࣥ㸪ẼᏍᙧែᏳᐃ๣࡜ࡋ࡚㓟໬࢔࣑ࣝࢽ࣒࢘ࢆ౑⏝ࡋ㸪ྛ⢊ᮎࡢῧຍ㔞ࡣᨩᢾ㡿ᇦ㉁㔞࡟ᑐࡋ࡚ࡑࢀࡒ
ࢀ 1 mass%㸪5 mass%࡜ࡋࡓ㸬ᦶ᧿ᨩᢾᚋࡢᯈࢆ 30 mm  30 mm  12 mm ࡟ษࡾฟࡋࣉ࣮ࣜ࢝ࢧ࡜ࡋࡓ㸬ࡲࡓ㸪ࣉ࣮ࣜ࢝ࢧࡢ
ⓎἻ࡟ࡣࣁࣟࢤࣥࣛࣥࣉ࡟ࡼࡿගຍ⇕ࢆ⏝࠸ࡓ㸬ᅗ㸯࡛♧ࡍࡼ࠺࡟ࣉ࣮ࣜ࢝ࢧࢆୖୗ୧㠃࠿ࡽᆒ➼࡟ຍ⇕ⓎἻࡉࡏ㸪࣏࣮ࣛࢫ࢔
࣑ࣝࢽ࣒࢘ࢆస〇ࡋࡓ㸬ගຍ⇕࡟ࡼࡾࣉ࣮ࣜ࢝ࢧࢆ௵ពࡢ኱ࡁࡉࡲ࡛ⓎἻ⭾ᙇࡉࡏࡓࡽຍ⇕ࢆࡸࡵ㸪⭾ᙇࡀṆࡲࡗࡓࡇ࡜ࢆ┠ど࡛☜ㄆᚋ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆྲྀࡾฟࡋࡓ㸬୧㠃ගຍ⇕ⓎἻ࡟ࡼࡾస〇ࡋࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡣᨺ㟁ຍᕤᶵ࡟ࡼࡾ㸯㎶
ࡀ 20 mm ࡢ❧᪉య࡟ษࡾฟࡋヨ㦂∦࡜ࡋࡓ㸬ḟ࡟ᶵᲔᏛ⩦࡟⏝࠸ࡿࡓࡵ࡟ X ⥺ CT ᧜ീ࡜ᅽ⦰ヨ㦂ࢆ⾜ࡗࡓ㸬X ⥺ CT ᧜ീ࡛ࡣ㸪⏬ീࢧ࢖ࢬࡀ 512 pixel512 pixel㸪ࣆࢡࢭࣝᙜ㔞㛗ࡣ⣙ 60 ȣm/pixel㸪ࢫࣛ࢖ࢫࣆࢵࢳࡣࣆࢡࢭࣝᙜ㔞㛗࡜➼ࡋࡃ⣙ 60 ȣm/pixel ࡜ࡋࡓ㸬ࡲࡓ㸪␚ࡳ㎸ࡳࢽ࣮ࣗࣛࣝࢿࢵ
ࢺ࣮࣡ࢡࡢᏛ⩦࡟ྜࢃࡏ࡚ X ⥺ CT ⏬ീࡢࢺ࣑ࣜࣥࢢࢆ⾜ࡗࡓ㸬౑⏝ྍ⬟࡞✚ᒙᯛᩘ 310 ᯛ࡟ྜࢃࡏ࡚㸪310 pixel310 pixel ࡛ࢺ࣑ࣜࣥࢢࢆ⾜ࡗࡓ㸬ࡲࡓᏛ⩦ࡢ㝿࡟㸪㸯ࡘࡢヨ㦂∦࡟ࡘࡁࡼࡾከࡃࡢࢹ࣮ࢱ࡛Ꮫ⩦࡛ࡁࡿࡼ࠺㸪⏬ീࢆ 90rࡎࡘᅇ㌿ࡉࡏࡓࢹ࣮ࢱࢭࢵࢺࢆసᡂࡋᏛ⩦⏝ࢹ࣮ࢱࢭࢵࢺࢆ 4 ಸ࡟ቑࡸࡋࡓ㸬ᅽ⦰ヨ㦂ࡣ㸪᪥ᮏ⏘ᴗつ᱁ JIS H 7902 ࡟ᇶ࡙࠸࡚⾜࠸㸪ᅽ⦰ࡦࡎࡳ
㏿ᗘࡣ᪥ᮏ⏘ᴗつ᱁ࡀ♧ࡍ 10-3̽10-2 ẖ⛊ࡢ⠊ᅖෆ࡟┦ᙜࡍࡿ 1.18̽1.50 mm/min ࡜ࡋࡓ㸬ࡲࡓᅽ⦰ヨ㦂ࡢ⤖ᯝ࠿ࡽ㸪࣏࣮ࣛࢫ࢔
࣑ࣝࢽ࣒࢘ࡢᙉᗘࡢᣦᶆ࡜ࡍࡿࣉࣛࢺ࣮ᛂຊࢆồࡵࡓ㸬ࣉࣛࢺ࣮ᛂຊࡣ JIS H 7009 ࡟࠾࠸࡚ 20̽30 %ࡢᅽ⦰ࡦࡎࡳ࡛ࡢᅽ⦰ᛂຊ
ࡢᖹᆒ್࡜ᐃ⩏ࡉࢀ࡚࠸ࡿ㸬ḟ࡟ᶵᲔᏛ⩦ࢆ⾜ࡗࡓ㸬X ⥺ CT ⏬ീࡸᅽ⦰ヨ㦂ࡢ⤖ᯝ࠿ࡽ㸪ᶵᲔᏛ⩦࡟㐺ࡉ࡞࠸࡜ุ᩿ࡋࡓヨ㦂∦ࢆ㝖ࡁ㸪᭱⤊ⓗ࡟ A1050
࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ 30 ಶ㸪A6061 ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ 20 ಶࢆᏛ⩦࡟⏝࠸ࡓ㸬ᶵᲔᏛ⩦࡛ࡣ㸪MATLAB Release2022a ࢆ⏝࠸࡚ᩍᖌ࠶ࡾᏛ⩦ࡢ␚ࡳ㎸ࡳࢽ࣮ࣗࣛࣝࢿࢵࢺ࣡
࣮ࢡࢆసᡂࡋࡓ㸬ࢹ࣮ࢱࢭࢵࢺࡢ⏬ീ 310 ᯛࢆࡲ࡜ࡵ࡚Ꮫ⩦࡛ࡁࡿࡼ࠺㸪ධຊᒙࢧ࢖ࢬࢆ 310310310 ࡜ࡋ㸪୰㛫ᒙࡀ
5 ᒙࡢࢽ࣮ࣗࣛࣝࢿࢵࢺ࣮࣡ࢡ࡛Ꮫ⩦ࢆ⾜࡞ࡗࡓ㸬୰㛫ᒙ࡟࠾࠸࡚㸪33 ࡢࣇ࢕ࣝࢱ࡟ࡼࡾ␚ࡳ㎸ࡳࢆ⾜࠸㸪22 ࡢࣇ࢕ࣝࢱ࡛᭱኱ࣉ࣮ࣜࣥࢢࢆ⾜ࡗࡓ㸬ࡲࡓྛࢹ࣮ࢱࢭࢵࢺ࡟࠾
࠸࡚㸪Ꮫ⩦᫬㛫ࡸ⢭ᗘ࡟ᛂࡌ࡚࣑ࢽࣂࢵࢳࢧ࢖ࢬࡸᏛ⩦⋡ࢆタᐃࡋࡓ㸬

− 116 −

3㸬ᐇ㦂⤖ᯝస〇ࡉࢀࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆᅗ 1 ࡟♧ࡍ㸬ࣉ࣮ࣜ࢝ࢧࡢ
ᗘࡀୖ᪼ࡋ㸪⁐⼥≧ែ࡜࡞ࡗࡓ࢔࣑ࣝࢽ࣒࢘ෆ࡛ⓎἻ๣࠿ࡽศ
㞳ࡋࡓỈ⣲ࡀ⭾ᙇࡍࡿࡇ࡜࡛࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡀస〇ࡉࢀࡿ㸬
A1050 ཬࡧ A6061 ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢᛂຊࡦࡎࡳ⥺ᅗࢆᅗ
2 ࡟♧ࡍ㸬ᅽ⦰ヨ㦂࡛ࡣኚᙧࡀᒙ≧࡟㉳ࡇࡾఏ᧛ࡋ࡚࠸ࡗࡓ㸬ࡦࡎࡳࡀ⣙ 3 %࡛ᛂຊࡀ❧ࡕୖࡀࡾ㸪ࡦࡎࡳࡀ⣙ 10̽50 %࡛ࡣᛂຊ
ࡀ࡯ࡰ୍ᐃ࡛⦆ࡸ࠿࡟ୖ᪼ࡍࡿࣉࣛࢺ࣮㡿ᇦࡀ⌧ࢀ㸪ࡦࡎࡳࡀ⣙60 %௨㝆࡛ࡣヨ㦂∦ࡀ⦓ᐦ໬ࡋᛂຊࡀᛴ⃭࡟ୖ᪼ࡋࡓ㸬ࡇࢀࡽࡢ≉ᚩࡣ A1050 ཬࡧ A6061 ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡟࠾࠸࡚ඹ㏻࡟ࡳࡽࢀࡓ㸬ࡲࡓᅗ 2 ࡼࡾ㸪A6061 ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ᪉ࡀ A1050
࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡼࡾᅽ⦰ᛂຊࡣୖᅇࡗ࡚࠾ࡾ㸪ࣉࣛࢺ࣮ᛂຊࡶ
㧗࠸ഴྥࡀ࠶ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ᶵᲔᏛ⩦ࡢ⤖ᯝࢆᅗ 3 ࠾ࡼࡧᅗ 4 ࡟♧ࡍ㸬ࡇࢀࡽࡢࢢࣛࣇࡣᅽ⦰ヨ㦂࡛ᚓࡽࢀࡓࣉࣛࢺ࣮ᛂຊ࡜Ꮫ⩦࡟ࡼࡿண ್ࡢ㛵ಀࢆ♧ࡋ࡚࠸ࡿ㸬ࡇࢀࡽࡢࣉࣟࢵࢺࡀⅬ⥺࡟ࡼࡗ࡚ᘬ࠿ࢀࡓᑐゅ⥺࡟㏆࠸࡯࡝ண ್ࡀṇ☜࡛࠶ࡿࡇ࡜ࢆ♧ࡍ㸬ࡲࡓࢢࣛࣇࡼࡾ㸪A6061 ࡢሙྜࡢ᪉ࡀ඲యⓗ࡟ࣉࣛࢺ࣮ᛂຊࡀ㧗࠸ࡇ࡜ࡀࢃ࠿ࡿ㸬
A1050 ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࡛࢘ࡣ㸪ࣉࣛࢺ࣮ᛂຊࡀ 4 MPa ௨ୗࡢሙྜ࡛ࡣ࠾࠾ࡼࡑṇࡋ࠸ண ࡀ࡛ࡁ࡚࠸ࡿࡀ㸪ࣉࣛࢺ࣮ᛂຊࡀ 5̽7 MPaࡢሙྜ࡛ࡣண ್ࡀ኱ࡁࡃእࢀࡿࡶࡢࡀ࠶ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ㄗᕪࡀ᭱኱࡜࡞ࡗࡓヨ㦂∦ࡢࣉࣛࢺ࣮ᛂຊࡣ 6.84 MPa ࡢ᫬࡛࠶ࡗࡓࡀ㸪ࡇࡢࣉࣛࢺ࣮ᛂຊ࡟㏆࠸ヨ㦂∦ࡢࢹ࣮ࢱࡀࡲࡔ༑ศ࡟㞟ࡲࡗ࡚࠸࡞࠸ࡓࡵண
್ࡀ኱ࡁࡃእࢀࡓ࡜⪃࠼ࡽࢀࡿ㸬⤖ᯝ㸪඲ヨ㦂∦࡟࠾ࡅࡿㄗᕪࡢᖹ
ᆒࡣ 0.47 MPa ࡜࡞ࡾ㸪ㄗᕪࡣ᭱኱࡛ 2.41 MPa㸪᭱ᑠ࡛ 0.02 MPa ࡜࡞ࡗࡓ㸬A6061 ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࡛࢘ࡣ㸪඲యⓗ࡟ࣉࣟࢵࢺࡀⅬ⥺࠿ࡽࡤࡽࡅ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡇࢀࡣᚓࡽࢀࡓࣉࣛࢺ࣮ᛂຊࡀ඲యⓗ࡟ࡤࡽࡅ࡚࠾ࡾ㸪ヨ㦂∦ࡢᩘࡶᑡ࡞࠸ࡓࡵ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬⤖ᯝ㸪඲ヨ㦂∦࡟࠾ࡅࡿㄗᕪࡢᖹᆒࡣ 0.79 MPa ࡜࡞ࡾ㸪ㄗᕪࡣ᭱኱࡛ 1.78
MPa㸪᭱ᑠ࡛ 0.01 MPa ࡜࡞ࡗࡓ㸬4. ⤖ゝ
ᮏ◊✲࡛ࡣ㸪ⓎἻ࡟ࡼࡾస〇ࡋࡓ A1050 ཬࡧ A6061 ࣏࣮ࣛࢫ࢔࣑ࣝ
ࢽ࣒࢘ヨ㦂∦ࡢࣉࣛࢺ࣮ᛂຊண ࢆ⾜࠸㸪ࡑࢀࡒࢀࡢㄗᕪᖹᆒࡀ 0.47
MPa㸪0.79 MPa ⛬ᗘࡢண ࢆ⾜࠺ࡇ࡜ࡀ࡛ࡁࡓ㸬ㅰ㎡ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 117 −

X ⥺ CT ⏬ീࢆ⏝࠸ࡓᶵᲔᏛ⩦࡟ࡼࡿ A1050 ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢᅽ⦰ᙉᗘண
⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛ᆏཱྀ⿱ᶞ㸪໭ཎᝆ┿㸪༙㇂⚞ᙪ1㸬┠ⓗ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡣ㸪ෆ㒊࡟ከᩘࡢẼᏍࢆ᭷ࡍࡿከᏍ㉁㔠ᒓ࡛࠶ࡿ㸬ࡑࡢࡓࡵ㸪పẚ㔜࡛࠶ࡾ㸪⾪ᧁ྾཰ᛶࡸ྾㡢ᛶ㸪᩿⇕ᛶ࡞࡝࡟ඃࢀࡿᛶ㉁ࢆᣢࡘ㸬࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘స〇᫬ࡢ≉ᚩ࡜ࡋ࡚㸪㗪㐀ἲࡸࣉ࣮ࣜ࢝ࢧἲࢆ⏝࠸ࡓሙྜ㸪ྠࡌᮦᩱࢆ⏝࠸࡚స〇ࡋࡓࡶࡢྠኈ࡛ࡶ㸪ẼᏍᙧែࡢไᚚࡣ㞴ࡋࡃ㸪ᆒ୍࡞ẼᏍࢆ᭷ࡍࡿ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢస〇ࡣ㞴ࡋ࠸㸬୙ᆒ୍࡞ᮦ
ᩱࡣᶵᲔⓗᛶ㉁ࡀ␗࡞ࡿࡓࡵ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆ〇ရ࡜ࡋ࡚฼⏝ࡍࡿሙྜ࡟ࡣ㸪
ရ㉁ࢆಖドࡍࡿࡇ࡜ࡀ࡛࡞࠸㸬ࡋࡓࡀࡗ࡚㸪
㠀◚ቯ࡟ࡼࡾᶵᲔⓗᛶ㉁ࢆホ౯ࡍࡿࡇ࡜ࡀᮃࡲࡋ࠸㸬ᮏ◊✲࡛ࡣ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ᩿㠃ࡢ X ⥺ CT ⏬ീ࡜ࣉࣛࢺ࣮ᛂຊ
ࢆᑐᛂ࡙ࡅ࡚ᶵᲔᏛ⩦ࢆ⾜࠺ࡇ࡜࡛㸪ࣉࣛࢺ࣮ᛂຊࢆண ࡍࡿ࢔ࣝࢦࣜࢬ࣒ࢆసᡂࡍࡿࡇ࡜ࢆヨࡳࡓ㸬
2㸬◊✲᪉ἲ
ᮏ◊✲࡛ࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢస〇࡟ࡣᦶ᧿ᨩᢾἲࢆ⏝࠸ࡓ㸬ᕤᴗ⏝⣧࢔࣑ࣝࢽ࣒࢘ A1050 ᯈᮦࢆẕᮦ࡜ࡋ㸪ⓎἻ๣࡟Ỉ⣲໬ࢳࢱࣥ㸪ẼᏍᙧែᏳᐃ๣࡟࢔࣑ࣝࢼࢆ⏝࠸㸪A1050 ᯈᮦ࡟ᣳࢇ࡛ᦶ᧿ᨩ
ᢾ᥋ྜࢆ᪋ࡋ࡚స〇ࡋࡓࣉ࣮ࣜ࢝ࢧ࡟㸪ࢫࢸࣥࣞࢫ㔠ᆺࢆࡣࡵ㎸ࢇࡔ㸬ࡑࡢᚋ㸪ຍ⇕ⓎἻࡋᚓࡽࢀࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆᨺ㟁ຍᕤᶵ࡟ࡼࡾษ᩿ࡋ㸪1 ㎶ࡀ 20 mm ࡢ❧᪉యࡢヨ㦂∦ࢆస〇ࡋࡓ㸬స〇ࡋࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࢆᅗ 1 ࡟♧ࡍ㸬ḟ࡟㸪స〇ࡋࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࡢ᩿㠃ࡢ X ⥺ CT ⏬ീࢆ࣐࢖ࢡࣟࣇ࢛࣮
࢝ࢫ X ⥺ CT ⿦⨨࡟ࡼࡾ᧜ീࡋ㸪ヨ㦂∦ 1 ࡘ࡟ࡘࡁ⣙ 320 ᯛྲྀᚓࡋࡓ㸬ࡑࡢᚋ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࡢᅽ⦰ヨ㦂ࢆ⾜ࡗࡓ㸬ࣉࣛࢺ࣮ᛂຊȪrpl ࡣᅽ⦰ヨ㦂࡟ࡼࡾᚓࡽࢀࡓࡦࡎࡳȜࡢ 20%̽30%࡟࠾
ࡅࡿᛂຊȪࡢᖹᆒ್࡜ࡋࡓ㸬ᅽ⦰ヨ㦂ࡢᛂຊ̽ࡦࡎࡳ⥺ᅗࢆᅗ 2 ࡟♧ࡍ㸬ࡇࡇ࡛ࡣȜࡀ⣙ 10%̽50%࡛ᛂຊࡀ࡯ࡰ୍ᐃ࡛⦆ࡸ࠿࡟ୖ᪼ࡍࡿ
ࣉࣛࢺ࣮㡿ᇦࡀ☜ㄆ࡛ࡁࡓ㸬ḟ࡟㸪␚ࡳ㎸ࡳࢽ࣮ࣗࣛࣝࢿࢵࢺ࣮࣡ࢡࡢࢹ࣮ࢱࢭࢵࢺࢆసᡂࡋ
ࡓ㸬X ⥺ CT ᧜ീ࡟ࡼࡾᚓࡽࢀࡓヨ㦂∦᩿㠃⏬ീ୰ࡢヨ㦂∦㒊ศࢆ
310 pixel310 pixel࡛ࢺ࣑ࣜࣥࢢࡍࡿࡇ࡜࡛20 mmࡢヨ㦂∦࡟ᑐࡋ㸪⣙ 19 mm ࡛ࢺ࣑ࣜࣥࢢ࡛ࡁࡓ㸬ࡲࡓ⏬ീࡢ✚ᒙᯛᩘࡶࢺ࣑ࣜࣥࢢࢧ࢖ࢬ࡜➼ࡋ࠸ 310 ᯛ࡜ࡋࡓ㸬Ꮫ⩦᫬࡟ࡣከࡃࡢࢹ࣮ࢱࢭࢵࢺࡀᚲせ࡞ࡓࡵ㸪⏬ീࢆྑ࡟ 0r㸪90r㸪180r㸪270rᅇ㌿ࡉࡏࡓ 4 ࡘࡢࢹ࣮ࢱࢭࢵࢺࢆసᡂࡋࡓ㸬ḟ࡟㸪ᩍᖌ࠶ࡾᏛ⩦ࡢ␚ࡳ㎸ࡳࢽ࣮ࣗࣛࣝࢿࢵࢺ࣮࣡ࢡࢆసᡂࡋࡓ㸬ධຊᒙࢧ࢖ࢬࡣࢹ࣮ࢱࢭࢵࢺࡢࢧ࢖ࢬ࡜➼ࡋࡃࡋࡓ㸬ࡲࡓ㸪୰㛫ᒙࡣ 5 ᒙ࡜ࡋ㸪␚ࡳ㎸ࡳᒙ࡛ࡣ 33 ࡢࣇ࢕ࣝࢱࢆ⏝࠸࡚ࢫࢺࣛ࢖ࢻ 1 ࡛␚ࡳ㎸ࡳࢆ⾜࠸㸪ࣉ࣮ࣜࣥࢢᒙ࡛ࡣ 22 ࡢࣇ࢕ࣝࢱࢆ⏝࠸࡚ࢫࢺࣛ࢖ࢻ 2 ࡛᭱኱ࣉ࣮ࣜࣥࢢࢆ⾜ࡗࡓ㸬ฟຊᒙࡣ඲⤖ྜᒙ࡜ᅇᖐฟຊᒙ࡜ࡋ㸪ᅇᖐᏛ⩦ࢿࢵࢺ࣮࣡ࢡࢆసᡂࡋࡓ㸬ḟ࡟㸪␚ࡳ㎸ࡳࢽ࣮ࣗࣛࣝ
ࢿࢵࢺ࣮࣡ࢡ࡬ࡢᏛ⩦ࢆ⾜ࡗࡓ㸬ᮏ◊✲࡛ࡣ㸪࡛ࡁࡿࡔࡅᏛ⩦⏝ࢹ࣮ࢱࢭࢵࢺࢆቑࡸࡍࡓࡵ࡟㸪1 ࡘࡢヨ㦂∦ࢆࢸࢫࢺ⏝ࢹ࣮ࢱࢭࢵࢺ࡜ࡋ㸪ࡑࡢ௚඲࡚ࡢヨ㦂∦ࢆᏛ⩦⏝ࢹ࣮ࢱࢭࢵࢺ࡜ࡋ࡚Ꮫ⩦ࢆ⾜ࡗࡓ㸬ࡇࡇ࡛㸪ヨ㦂∦ 1 ࡘ࡟ࡘࡁࢹ࣮ࢱࢭࢵࢺࡀ 4 ࡘ࠶ࡾ㸪ࣉࣛࢺ࣮ᛂຊண ್ࡶ 4 ࡘᚓࡽࢀࡿࡓࡵ㸪4 ࡘࡢ್ࡢᖹᆒ್ࢆᨵࡵ࡚ࡑࡢヨ㦂∦ࡢࣉࣛࢺ࣮ᛂຊண ್Ȫppl MPa ࡜ࡋࡓ㸬ࡇࡢᏛ⩦᪉ἲ࡛ࢸࢫࢺ⏝ヨ㦂∦ࢆኚ࠼࡞ࡀࡽ඲࡚ࡢヨ㦂∦࡟ᑐࡋ࡚ࢸࢫࢺࢆ⾜ࡗࡓ㸬− 118 −

3㸬ᐇ㦂⤖ᯝヨ㦂∦ࢆ 30 ಶస〇ࡋ㸪ࡇࢀࡽࡢᅽ⦰ヨ㦂࡟ࡼࡾᚓࡽࢀࡓࣉࣛࢺ
࣮ᛂຊȪrpl ࡣ㸪1.14 MPa̽6.84 MPa ࡛࠶ࡗࡓ㸬ࡲࡎ㸪ධຊࢧ࢖ࢬࡀ
310310310 ࡟࠾ࡅࡿᏛ⩦⤖ᯝࢆ♧ࡍ㸬ᅗ 3 ࡟ᅽ⦰ヨ㦂࡟ࡼࡾᚓࡽࢀࡓᐇ㝿ࡢࣉࣛࢺ࣮ᛂຊȪrpl MPa ࡜ᶵᲔᏛ⩦࡟ࡼࡿࣉࣛࢺ࣮ᛂຊண ್Ȫppl MPa ࡜ࡢ㛵ಀࢆ♧ࡍ㸬ᅗ 3 ࡢࢢࣛࣇ࡟ᘬ࠿ࢀࡓ┤⥺Ȫrpl=Ȫppl ࡟㏆ࡅࢀࡤ㏆࠸࡯࡝⢭ᗘⰋࡃண ࡛ࡁ࡚࠸ࡿࡇ࡜ࢆ
♧ࡋ࡚࠸ࡿ㸬1̽3 MPa ௜㏆ࡢࣉࣛࢺ࣮ᛂຊࢆࡶࡘヨ㦂∦࡛ࡣࡔ࠸ࡓ࠸ṇ☜࡟ண ࡛ࡁ࡚࠸ࡓࡀ㸪ࣉࣛࢺ࣮ᛂຊࡀ኱ࡁࡃ࡞ࡿ࡟ࡘࢀண ್ࡀእࢀࡿഴྥ࡟࠶ࡗࡓ㸬ࡲࡓ㸪ࣉࣛࢺ࣮ᛂຊ࠿ࡽண ್ࢆῶ⟬ࡋࡓ್ࡢ⤯ᑐ್ࢆㄗᕪȪerpli MPa ࡜ࡋィ⟬ࡋࡓ࡜ࡇࢁ㸪ㄗᕪᖹ
ᆒ್ࡣ 0.47 MPa ࡔࡗࡓ㸬ࡇࡢࡼ࠺࡞⤖ᯝ࡜࡞ࡗࡓ⌮⏤࡜ࡋ࡚ࡣ㸪
4̽7 MPa ࡢࣉࣛࢺ࣮ᛂຊࢆࡶࡘ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࢹ࣮ࢱࡀ༑ศ࡟㞟ࡲࡗ࡚࠸࡞࠿ࡗࡓࡓࡵ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡓࡔࡋ㸪᧜ീࡋࡓ X ⥺ CT ⏬ീࡢࣆࢡࢭࣝᙜ㔞㛗ࡀ⣙ 60 m/pixel ࡛࠶ࡾ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢࢭࣝቨࡀࡇࢀࡼࡾࡶⷧ࠸ሙྜࡸẼᏍࡀᚤᑠ࡞ሙྜࡣ X ⥺ CT ⏬ീ࡛ࡣ⾲⌧ฟ᮶ࡎ㸪ࢹ࣮ࢱࢭࢵࢺࡢ⾲⌧ຊࡀ༑ศ࡛࡞࠸஦ࡶ⪃࠼ࡽࢀࡿ㸬ࡑࡇ࡛㸪ࢹ࣮ࢱࢭࢵࢺࡢゎീᗘࢆ
310 pixel310 pixel ࠿ࡽ 39 pixel39 pixel ࡲ࡛༙ศࡎࡘῶᑡࡉࡏ
ୣ୰തതതത࡞ࡀࡽᏛ⩦ࢆ⾜ࡗࡓ㸬ࡑࢀࡒࢀࡢᏛ⩦࡟࠾ࡅࡿㄗᕪᖹᆒ್ߪ
୮୪MPa ࡢኚ໬ࢆᅗ 4 ࡟♧ࡍ㸬155 pixel×155 pixel㸪78 pixel×78 pixel࡛ࡣㄗᕪᖹᆒ್ࡀ⣙ 0.45 MPa ࡛ධຊ⏬ീࢧ࢖ࢬࢆୗࡆ࡚ࡶㄗᕪ
ࡣࡑࡇࡲ࡛኱ࡁࡃ࡞ࡗ࡚࠸࡞࠸㸪୍᪉㸪39 pixel×39 pixel ࡛ࡣㄗᕪᖹᆒ್ࡀ⣙ 0.60 MPa ࡜኱ࡁࡃ࡞ࡗࡓ㸬ࡇࡢࡇ࡜࠿ࡽࢹ࣮ࢱࢭࢵࢺ
ࡢゎീᗘࢆᴟ➃࡟ᑠࡉࡃࡋ࡞ࡅࢀࡤண ⢭ᗘࡣ኱ࡁࡃపୗࡋ࡞࠸
ࡇ࡜ࡀศ࠿ࡗࡓ㸬4. ⤖ゝ
ᮏ◊✲࡛ࡣ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ᩿㠃ࡢ X ⥺ CT ⏬ീ࡜ࣉࣛࢺ࣮ᛂຊࢆ⏝࠸࡚ᶵᲔᏛ⩦ࢆ⾜࠺ࡇ࡜࡛㸪ࣉࣛࢺ࣮ᛂຊࢆண
ࡍࡿ࢔ࣝࢦࣜࢬ࣒ࢆసᡂࡍࡿࡇ࡜ࢆヨࡳ௨ୗࡢ⤖ゝࢆᚓࡓ㸬(1) ධຊࢧ࢖ࢬࡀ 310310310㸪Ꮫ⩦⏝ࢹ࣮ࢱࢭࢵࢺࡀ 294 ಶ㸪ࣉࣛࢺ࣮ᛂຊࡢ⠊ᅖࡀ 1.2 MPa̽6.8 MPa ࡢሙྜ㸪ㄗᕪࡀᖹᆒ࡛ 0.46 MPa ⛬ᗘࡢண ࢆ⾜࠺ࡇ࡜ࡀ࡛ࡁࡓ㸬(2) ண ್ࡣࢹ࣮ࢱᩘࡀከࡃ࡞ࡿ࡜ࡑࡢࢹ࣮ࢱࡢࣉࣛࢺ࣮ᛂຊ࡟㏆࠸ࢹ࣮ࢱࢭࢵࢺࡀ⢭ᗘⰋࡃண ࡉࢀࡿࡓࡵ㸪⢭ᗘྥୖ࡟ࡣ
୙㊊ࡋ࡚࠸ࡿࣉࣛࢺ࣮ᛂຊࡢࢹ࣮ࢱࢭࢵࢺࢆከᩘᏛ⩦ࡉࡏࡿᚲせࡀ࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬(3) ࢹ࣮ࢱࢭࢵࢺࡢゎീᗘࢆᴟ➃࡟ᑠࡉࡃࡋ࡞ࡅࢀࡤண ⢭ᗘࡣ኱ࡁࡃపୗࡋ࡞࠸ࡇ࡜ࡀศ࠿ࡗࡓ㸬ㅰ㎡ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 119 −

࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡜ CFRP ࡢࣟ࣎ࢵࢺ࢔࣮࣒ࢆ⏝࠸ࡓ⇕ᅽ╔⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛ᑠἨⲡኴ㸪༙㇂⚞ᙪ1㸬┠ⓗ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡣపᐦᗘ࡛࠶ࡿࡓࡵ㍍㔞ᛶ࡟ඃࢀ㸪᩿⇕ᛶ㸪⾪ᧁ྾཰ᛶ࡞࡝ࡀ㧗ࡃ㸪ඃࢀࡓᛶ⬟ࢆᣢࡘᮦᩱ࡛࠶ࡿ㸬ࡋ࠿ࡋ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡟ࡣపᙉᗘ࡜࠸࠺ḞⅬࡀ࠶ࡾ㸪༢య࡛౑⏝ࡍࡿࡇ࡜ࡣ㞴ࡋ࠸㸬ࡑࡇ࡛㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆ௚
ࡢ㍍㔞ᮦᩱ࡜ే⏝ࡍࡿࡇ࡜࡟ࡼࡾపᙉᗘ࡜࠸࠺ḞⅬࢆ⿵࠺ࡇ࡜ࡀ࡛ࡁࢀࡤ㸪ᕤᴗⓗ࡟౑⏝࡛ࡁࡿሙ㠃ࡀቑ࠼ࡿ࡜⪃࠼ࡽࢀࡿ㸬㐣ཤࡢ◊✲࡛࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡜⇕ྍረᛶᶞ⬡ࡢ୍✀࡛࠶ࡿ࣏࣮ࣜ࢝࣎ࢿ࣮ࢺ(PCTA)ࡢ⇕ᅽ╔ࡢᐇ㦂ࡀ⾜ࢃࢀ㸪᥋ྜྍ⬟࡛࠶ࡿࡇ࡜ࡀศ࠿ࡗ࡚࠸ࡿ㸬PCTA ࡼࡾࡶ㧗ᙉᗘ࡛࠶ࡿ⣲ᮦ࡜ࡋ࡚Ⅳ⣲⧄⥔ᙉ໬ࣉࣛࢫࢳࢵࢡ(CFRP)ࡀ࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡜ CFRP ࡢ⇕ᅽ╔࡟ࡼࡿ᥋ྜࢆ᳨ウࡍࡿ㸬࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡟ CFRP ࢆᢲࡋ㎸ࡴ㝿࡟ࡣࣟ࣎ࢵࢺ࢔࣮࣒
ࢆ౑⏝ࡋࡓ㸬⇕ᅽ╔࡟ࡼࡾ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢከᏍ㉁ᵓ㐀ࢆά࠿ࡋࡓ࢔࣮ࣥ࢝ຠᯝ࡟ࡼࡿ㧗ᙉᗘ࡞᥋ྜࡀᮇᚅ࡛ࡁࡿ㸬
2㸬◊✲᪉ἲ
࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢస〇᪉ἲ࡜ࡋ࡚㸪↝⤖ࢫ࣮࣌ࢧ࣮ἲࢆ⏝࠸ࡓ㸬↝⤖ࢫ࣮࣌ࢧ࣮ἲ࡛ࡣ㸪ࡲࡎฟⓎᮦ࡜࡞ࡿ⣧࢔࣑ࣝࢽ࣒࢘⢊ᮎ࡜ࢫ࣮࣌ࢧ࣮࡛࠶ࡿሷ໬ࢼࢺ࣒ࣜ࢘⢊ᮎࢆ⏝ពࡋ㸪స〇ࡍࡿ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢẼᏍ⋡ࡀ 70%࡜࡞ࡿࡼ࠺࡟ΰྜࡋࡓ㸬ḟ࡟↝⤖⏝ࡢࢲ࢖࡟⢊ᮎࢆධࢀ㸪ᨺ㟁ࣉࣛࢬ࣐↝⤖࡟ࡼࡾ↝⤖ࡉࡏࡓ㸬ࡑࡋ࡚↝⤖ࡋ࡚స〇ࡋࡓヨ㦂∦ࢆὶỈ࡟ᾐₕࡍࡿࡇ࡜࡛ሷ໬ࢼࢺ࣒ࣜ࢘⢊ᮎࢆྲྀࡾ㝖ࡁ㸪஝⇱ࡉࡏ, ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࢆస〇ࡋࡓ㸬స〇ࡋࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࢆᅗ 1 ࡟♧ࡍ㸬౑⏝ࡋࡓ CFRP ࡣ 3D ࣉࣜࣥࢱ(MarkTwo)ࢆ⏝࠸࡚స〇ࡋࡓ㸬ẕᮦ࡟ࡣࢼ࢖ࣟࣥࢆ౑⏝ࡋ㸪Ⅳ⣲⧄⥔ࡣ TORAY 〇 T300 ࡜ྠᛶ⬟ࡢࡶࡢࢆ౑
⏝ࡋࡓ㸬࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࡢᗏ㠃ࡢ୰ᚰ࡟┤ᚄ 1 mm㸪῝ࡉ 5mm ࡢ✰ࢆ࠶ࡅࡓ㸬ࡑࡢ✰࡟⇕㟁ᑐࢆᕪࡋ㎸ࡳ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࡢ୰ᚰࡢ ᗘࢆィ ࡋ࡞ࡀࡽຍ⇕ࡋࡓ㸬ຍ⇕࡟ࡣ㸪ࣁࣟࢤࣥࣛࣥࣉ
ࢆ 3 ᮏ౑⏝ࡋࡓගຍ⇕⿦⨨ࢆ⏝࠸ࡓ㸬ࡑࢀࡒࢀࡢࣁࣟࢤࣥࣛࣥࣉ࡟ࡣ㟁
ὶ 9 A㸪㟁ᅽ 180 V ࢆ௜ຍࡋࡓ㸬ຍ⇕ࡣ୰ᚰ ᗘࡀ 500Υ࡟࡞ࡿࡲ࡛⾜ࡗࡓ㸬ຍ⇕ࢆ⤊஢ࡋ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࡢ ᗘࡀ 400Υ࡟࡞ࡗࡓ࡜ࡁ࡟ࣟ࣎ࢵࢺ࢔࣮࣒ࢆ⏝࠸࡚ CFRP ࢆᢲࡋ㎸ࡳ㸪᥋ྜࢆ⾜ࡗࡓ㸬࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡜ CFRP ࡢ᥋ྜࢆ⾜ࡗࡓᚋ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ഃ࡟ᵓ㐀⏝᥋╔๣ࢆ⏝࠸࡚┤ᚄ 16 mm ࡢ㗰〇ࡢࢶ࣮ࣝࢆྲྀࡾ௜ࡅࡓ㸬཯ᑐഃࡢ CFRP ࢆ἞ල࡛ᅛᐃࡋ㸪ᘬᙇヨ㦂ᶵࢆ⏝࠸࡚࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࡀ◚᩿ࡍࡿࡲ࡛ᘬᙇヨ㦂ࢆ⾜ࡗࡓ㸬3㸬ᐇ㦂⤖ᯝ
⇕ᅽ╔୰ࡢᵝᏊࢆᅗ 2 ࡟♧ࡍ㸬ᅗ 2 ࡢᕥഃ࡟࠶ࡿࡶࡢࡀ㸪ࣁࣟࢤࣥࣛࣥࣉࢆ⏝࠸ࡓගຍ⇕⿦⨨࡛࠶ࡿ㸬ຍ⇕ࡀ⤊஢ࡋࡓࡽᅗ 2ࡢ୰ኸࡲ࡛࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࢆ⛣ືࡉࡏ㸪୰ᚰ ᗘࡀ 400Υ࡟࡞ࡗࡓ࡜ࡁ࡟ᅗ 2 ࡢྑഃ࡟࠶ࡿࣟ࣎ࢵࢺ࢔࣮࣒ࢆ⏝࠸࡚ඛ➃࡟ྲྀࡾ௜ࡅࡓ CFRP ࢆ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡟ᢲࡋ㎸ࡴࡇ࡜࡛㸪᥋ྜࢆ⾜ࡗࡓ㸬᥋ྜࡋࡓᚋࡢヨ㦂∦ࢆᅗ 3 ࡟♧ࡍ㸬ࡲࡓ,ᘬᙇヨ㦂ࡢࡓࡵ࡟ࢶ࣮ࣝࢆྲྀࡾ௜ࡅࡓヨ㦂∦ࢆᅗ 4 ࡟♧ࡍ㸬ḟ࡟᥋ྜࡋࡓヨ㦂∦ࡢᘬᙇᙉᗘࢆồࡵࡓ㸬ᘬᙇヨ㦂ᶵ࡟⿦╔ࡋࡓヨ㦂∦ࢆᅗ 5(ᕥ)࡟♧ࡍ㸬ᅗ 5 ࡢୖ㒊ࡀࢶ࣮ࣝ࡟᥋╔ࡋࡓヨ㦂∦㸪ୗ㒊ࡀ CFRP ࢆᅛᐃࡍࡿ἞ල࡜࡞ࡗ࡚࠸ࡿ㸬ᅗ 5(ྑ)ࡣ◚᩿ࡋࡓ
࡜ࡁࡢᵝᏊࢆ♧ࡋ࡚࠸ࡿ. ࡇࡢࡼ࠺࡟࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࡀ◚᩿ࡋ࡚࠾ࡾ, ᙉᅛ࡞᥋ྜࡀ࡞ࡉࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ.

− 120 −

ᘬᙇヨ㦂ࢆ⾜ࡗࡓᚋ㸪ᚓࡽࢀࡓࢹ࣮ࢱ࠿ࡽᘬᙇᙉᗘࢆ⟬ฟࡋࡓ㸬ᘬᙇヨ㦂࡛ᚓࡽࢀࡓᘬᙇᙉᗘࢆᅗ 6 ࡟♧ࡍ㸬ࡲࡓ㸪◚᩿㠃ࢆᅗ
7 ࡟♧ࡍ㸬ᅗ 7 ࡼࡾ㸪ࡍ࡭࡚ࡢヨ㦂∦ࡢ◚᩿㠃࡛㸪CFRP ࡟࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ୍㒊ࡀṧࡗ࡚࠾ࡾ㸪᥋ྜ㠃࡛๤㞳ࡋ࡞࠸ࡇ࡜
ࡀศ࠿ࡗࡓ㸬ࡇࢀ࡟ࡼࡾ㸪ᮏ◊✲࡛⏝࠸ࡓ᮲௳࡛ࡢ᥋ྜࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ᅗ 7 ࡢ 3 ␒ࡢヨ㦂∦ࡣ᭱኱ᛂຊࡀ 4.8 MPa࡛࠶ࡾ㸪᏶඲࡟࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢẕᮦ◚᩿࡛࠶ࡿࡇ࡜࠿ࡽ㸪༑ศ࡞ᘬᙇᙉᗘࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡓ㸬ࡇࡢ⤖ᯝ࠿ࡽ㸪3 ␒ࡢ᥋ྜ࡛ࡣ, ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢẼᏍ࡟ࡼࡿ࢔࣮ࣥ࢝ຠᯝࡀ༑ศ࡟ᚓࡿࡇ࡜ࡀ࡛ࡁࡓ࡜⪃࠼ࡽࢀࡿ㸬ࡋ࠿ࡋ㸪᭱኱ᛂຊࡀ᭱ࡶ
ᑠࡉ࠿ࡗࡓᅗ 7 ࡢ 5 ␒ࡢヨ㦂∦ࡣ 1.4 MPa ࡛࠶ࡾ㸪◚᩿㠃ࡶ୍㒊ẕᮦ◚᩿࡛࠶ࡗࡓࡓࡵ㸪5 ␒ࡢ᥋ྜ࡛ࡣ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘
ࡢẼᏍ࡟ࡼࡿ࢔࣮ࣥ࢝ຠᯝࡣ༑ศ࡟ᚓࡽࢀ࡞࠿ࡗࡓ࡜⪃࠼ࡽࢀࡿ㸬ẕᮦ◚᩿࡜࡞ࡗࡓヨ㦂∦࡜୍㒊ẕᮦ◚᩿࡜࡞ࡗࡓヨ㦂∦࡛ࡣᘬᙇᙉᗘ࡟ᕪࡀ⏕ࡌ㸪᥋ྜᙉᗘ࡟ࡤࡽࡘࡁࡀⓎ⏕ࡋ࡚ࡋࡲࡗࡓ㸬⪃࠼ࡽࢀࡿ኱ࡁ࡞ཎᅉ࡜ࡋ࡚㸪᥋ྜࡍࡿ࡜ࡁࡢ ᗘࡢࡤࡽࡘࡁ
ࡀᣲࡆࡽࢀ㸪ᙉᗘࡀప࠿ࡗࡓ᥋ྜࡣ᥋ྜ ᗘࡀపࡃ㸪༑ศ࡞࢔࣮ࣥ࢝ຠᯝࡀᚓࡽࢀ࡞࠿ࡗࡓ࡜⪃࠼ࡽࢀࡿ㸬ࣟ࣎ࢵࢺ࢔࣮࣒ࡢࣉ
ࣟࢢ࣒ࣛࡣᡭື࡛㛤ጞࡍࡿࡓࡵ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࡢ ᗘ࡟ࡣヨ㦂࡟ࡼࡾ㸪ⱝᖸㄗᕪࡀ⏕ࡌ࡚ࡋࡲ࠺㸬 ᗘ࡟ࡼࡾ⮬ືⓗ࡟ࣟ࣎ࢵࢺ࢔࣮࣒ࡢࣉࣟࢢ࣒ࣛࢆ㛤ጞࡍࡿࡇ࡜࡛㸪ࡤࡽࡘࡁࡀ㜵ࡆࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ⾲㠃ࡢẼᏍࡣస〇ࡍࡿ㝿࡟ⱝᖸࡤࡽࡘࡁࡀ⏕ࡌ࡚ࡋࡲ࠺ࡇ࡜ࡶ㸪᥋ྜᙉᗘࡢࡤࡽࡘࡁ࡜࡞ࡗ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬4. ⤖ゝ
ᮏ◊✲࡛ࡣ㸪ẼᏍ⋡ 70㸣ࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡜ CFRP ࡢ⇕ᅽ╔ࢆヨࡳ㸪ḟࡢ⤖ゝࢆᚓࡓ㸬400Υ࡟⇕ࡋࡓ࣏࣮ࣛࢫ࢔࣑ࣝ
ࢽ࣒࢘࡟ CFRP ࢆ 5 ศ㛫ᢲࡋᙜ࡚ࡿࡇ࡜࡟ࡼࡾᙉᅛ࡟᥋ྜࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ㅰ㎡ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 121 −

࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡟ᑐࡍࡿ 3D ࣉࣜࣥࢱ࣮ࢆ⏝࠸ࡓᶞ⬡ࡢ┤᥋༳ๅ᥋ྜ࡟ࡼࡿ
」ྜᮦᩱࡢస〇࡜ᅽ⦰≉ᛶࡢホ౯⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛ᒣᓮ⋹ኈ㸪༙㇂⚞ᙪ1㸬┠ⓗከẼᏍ㔠ᒓ࡛࠶ࡿ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡣ㸪㜵㡢ᛶ㸪⾪ᧁ྾཰ᛶ࡞࡝࡟ඃࢀ㸪ୟࡘపẚ㔜࡜࠸ࡗࡓᛶ㉁ࢆ᭷ࡍࡿ㸬ࡑࡢࡓࡵ㸪⌧ᅾ⮬ື㌴ࡢࣇ࣮࣒ࣞࡸ⯟✵㒊ရ࡞࡝࡟⏝࠸ࡽࢀ㸪௒ᚋࡶᵝࠎ࡞ศ㔝࡛ά⏝ࡉࢀࡿࡇ࡜ࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡣ᭤ࡆᙉᗘࡸᘬᙇᙉᗘ࡟ᙅ࠸ࡓࡵ㸪⦓ᐦ࡞㒊ᮦ࡜」ྜ໬ࡋ࡚౑ࢃࢀࡿࡇ࡜ࡀከ࠸㸬୍᪉㸪3D ࣉࣜࣥࢱ࣮ࡣ㸪
3DCAD ࢹ࣮ࢱࢆ⏝࠸ࡿࡇ࡜࡛」㞧࡞ᙧ≧ࡢ㒊ရࡸ〇ရࡢస〇ࡀྍ⬟࡛࠶ࡾ㸪ෆ㒊ࡢ඘ሸ⋡࡞࡝ࡢࣃ࣓࣮ࣛࢱ࣮ࢆ᧯సࡋ᮲௳ࡢ
␗࡞ࡿྠᙧࡢヨᩱࢆస〇ࡍࡿࡇ࡜ࡶᐜ࡛᫆࠶ࡿ㸬ࡲࡓ㸪ᚑ᮶ࡢᕤἲ࡜ẚ㍑ࡋ࡚ྛ✀ẁྲྀࡾసᴗ࡞࡝ࢆ▷⦰࡛ࡁࡿⅬࡸ㸪㔠ᆺࡀ୙
せ࡞Ⅼ࡞࡝㸪ᕤ⛬㠃࡜ᮦᩱ㠃ࡢࢥࢫࢺ࢝ࢵࢺࡶᮇᚅ࡛ࡁࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪┤᪉యࡢ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ୖ࡟ 3D ࣉࣜࣥࢱ࣮ࢆ⏝࠸࡚┤᪉యࡢᶞ⬡ࢆ༳ๅࡋ㸪ᶞ⬡ෆ㒊ࡢ඘ሸ⋡ࢆኚ᭦ࡍࡿࡇ࡜࡛㸪ᵝࠎ࡞≉ᛶࡢ」ྜᮦᩱࢆస〇ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬
2㸬◊✲᪉ἲ
࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡣ Al-Si-Cu ⣔ྜ㔠ࡢ ADC12 ࢆ౑⏝ࡋ㸪ᦶ᧿ᨩᢾ᥋ྜ࡟ࡼࡾస〇ࡋࡓ㸬ᚓࡽࢀࡓ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘࡟ᑐࡋ࡚ᨺ㟁ຍᕤࢆ⾜࠺ࡇ࡜࡟ࡼࡾ㸪253025 mm3 ࡟ᡂᙧࡋࡓ㸬3D ࣉࣜࣥࢱ࣮ࡣ Creality♫ࡢ Ender3 S1 Pro㸦Fig.1㸧ࢆ౑⏝ࡋ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ヨ㦂∦ࢆ୧㠃ࢸ࣮ࣉ࡛ᅛᐃࡋ㸪ࢩ࣮ࢺࣄ࣮ࢱ࣮࡛ 30 ศຍ⇕ࡋࡓࡢࡕ࡟ᶞ⬡ࡢ┤᥋༳ๅࢆ㛤ጞࡋࡓ㸬༳ๅࡍࡿᙧ≧ࡣヨ㦂∦࡜ྠࡌᙧ࡛࠶ࡿ 253025 mm3 ࡜ࡋࡓ㸬ᶞ⬡ෆ㒊ࡢ඘ሸ⋡ࡣ 20%㸪10%࡜ࡋࡓ㸬඘ሸ⋡ 10㸣ࡢ」ྜᮦᩱࡢ
༳ๅ᫬ࡢᵝᏊࢆ Fig. 1 ࡟♧ࡍ㸬3㸬ᐇ㦂⤖ᯝ
స〇ࡋࡓ」ྜᮦᩱ࡜ࡑࡢ X ⥺ CT ⏬ീࢆ Fig. 2 ࡟♧ࡍ㸬ୖ㒊ࡢ⅊Ⰽࡢ㒊ศࡀ༳ๅࡋࡓᶞ⬡㸪ୗ㒊ࡢⓑⰍࡢ㒊ศࡀ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࡛࢘࠶ࡿ㸬ࡇࢀࢆぢࡿ࡜㸪඘ሸ⋡ࡢ㐪࠸ࡀ☜ㄆ࡛ࡁࡿ㸬ᶞ⬡ෆ㒊ࡢ඘ሸ⋡ 20%」ྜ
ᮦᩱࡢᅽ⦰ヨ㦂ࡢ⤖ᯝ࠿ࡽᚓࡽࢀࡓᛂຊࡦࡎࡳ᭤⥺࡜ᑐᛂࡍࡿᅽ⦰ヨ㦂୰ࡢᵝᏊࢆࡑࢀࡒࢀ Fig. 3㸪Fig. 4 ࡟♧ࡍ㸬ձࡢࡦࡎࡳ 1.1%ࡢ㒊ศ࡛ඛ࡟࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢኚᙧࡀጞࡲࡾ㸪ղࡢࡦࡎࡳ 12.3%࡟࠿ࡅ࡚ࡣ࣏࣮
ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢࡳࡀኚᙧࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬ճࡢࡦࡎࡳ 14.1%࠿
ࡽ༳ๅࡋࡓᶞ⬡ࡢኚᙧࡀጞࡲࡾ㸪մࡢࡦࡎࡳ 27.2%࡟࠿ࡅ࡚ᶞ⬡ࡀኚᙧࡋ࡚࠸ࡿ㸬յࡢࡦࡎࡳ 29.3%࠿ࡽṧᏑࡋ࡚࠸ࡿẼᏍࡢ⦓ᐦ໬ࡀጞࡲࡗ࡚࠾ࡾ㸪⦓ᐦ໬୰ࡢն㸦ࡦࡎࡳ 41.8%㸧࡛ࡣ༳ๅࡋࡓᶞ⬡ࡢእẆ㒊ศࡢኚᙧࡀ࣏࣮
ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆそ࠺ࡼ࠺࡟㐍⾜ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬ᶞ⬡ෆ㒊ࡢ඘ሸ⋡ 10%ࡢᛂຊࡦࡎࡳ⥺ᅗ࡜ᑐᛂࡍࡿᅽ⦰ヨ㦂୰ࡢᵝᏊࢆࡑࢀࡒࢀ Fig. 5㸪Fig. 6 ࡟♧ࡍ㸬ձࡢࡦࡎࡳ 1.0%ࡢ㒊ศ࡛ඛ࡟࣏࣮ࣛࢫ
࢔࣑ࣝࢽ࣒࢘୰ኸ㒊ࡢኚᙧࡀጞࡲࡾ㸪ղࡢࡦࡎࡳ 6.0%ࢆ㉸࠼ࡿ࠶ࡓࡾࡢ࡜ࡇࢁࡲ࡛ኚᙧࡀ㐍⾜ࡋ࡚࠸ࡿ㸬ճࡢࡦࡎࡳ 8.0%ࡢ㒊− 122 −

ศ࠿ࡽ༳ๅࡋࡓᶞ⬡ࡢኚᙧࡀጞࡲࡾ㸪յࡢࡦࡎࡳ 25.8%ࡢ㒊ศ࡛࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢṧᏑࡋ࡚࠸ࡿẼᏍࡢ⦓ᐦ໬ࡀ㐍⾜ࡍࡿࡲ࡛ࡣ㸪༳ๅࡋࡓᶞ⬡ࡢẼᏍࡢኚᙧࡀ୺࡟㐍⾜ࡋ࡚࠸ࡿ㸬մࡢࡦࡎࡳ 16.5%ࡢ㒊ศࡣࡑࡢ㏵୰⤒㐣࡛࠶ࡿ㸬ඛ㏙ࡋࡓ㏻ࡾ㸪յ࡛ࡣṧᏑࡋ࡚࠸ࡿẼᏍࡢ⦓ᐦ໬ࡀ㐍⾜ࡋጞࡵ㸪նࡢࡦࡎࡳ 39.0%࡛ࡣ༳ๅࡋࡓᶞ⬡ࡢእẆ㒊ศࡢኚᙧࡀ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࢆそ࠺ࡼ࠺࡟㐍⾜ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬ᶞ⬡ෆ㒊ࡢ඘ሸ⋡ 20%ࡢሙྜ࡛ࡣඛ࡟࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢẼᏍࡀኚᙧࡋࡓᚋ㸪༳ๅࡋࡓᶞ⬡ࡢẼᏍࡢኚᙧࡀ㐍⾜ࡋࡓ㸬ᶞ⬡ෆ㒊ࡢ඘ሸ⋡ 10%ࡢሙྜ࡛ࡣ㸪ࡲࡎ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢẼᏍࡢኚᙧࡀ㉳ࡇࡾ㸪ࡑࡢᚋࡍࡄ࡟༳ๅࡋࡓᶞ⬡ࡢኚᙧࡀ㐍⾜ࡋ㸪᭱ᚋ࡟ṧᏑࡋࡓẼᏍࡢ⦓ᐦ໬ࡀ㐍⾜ࡋࡓ㸬ᶞ⬡ෆ㒊ࡢ඘ሸ⋡ࡢ㐪࠸࡟ࡼࡾኚᙧࡢ௙᪉࡟㐪࠸ࡀ⏕ࡌࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡲࡓ㸪ᅽ⦰ࡦࡎࡳ 20%࠿ࡽ 30%ࡢᖹᆒ್ࢆᐃ⩏࡜ࡍࡿࣉࣛࢺ࣮ᛂຊࢆࡑࢀࡒࢀồࡵࡿ࡜㸪඘ሸ⋡ 20%
ࡢሙྜ 7.9 MPa㸪඘ሸ⋡ 10%ࡢሙྜ 4.4 MPa ࡛࠶ࡗࡓ㸬ࡉࡽ࡟ࣉࣛࢺ࣮ᛂຊࡢ 1.3 ಸࢆ࡜ࡿ⦓ᐦ໬㛤ጞᛂຊࢆࡑࢀࡒࢀồࡵࡿ࡜㸪඘ሸ⋡ 20%ࡢሙྜ 10.2 MPa㸦ࡦࡎࡳ 29.2%㸧
㸪඘ሸ⋡ 10%ࡢሙྜ 5.7 MPa㸦ࡦࡎࡳ 28.4%㸧࡛࠶ࡾ㸪ᙉᗘࡢ㠃࡛ࡶᕪࡀ⏕ࡌࡿࡇ࡜ࡀࢃ࠿ࡾ㸪඘ሸ⋡ࡀప࠸᪉ࡀᙉᗘࡶపࡃ࡞ࡗࡓ㸬඘ሸ⋡ࢆኚ࠼ࡿࡔࡅ࡛ࡶ␗࡞ࡗࡓ≉ᛶࡢ」ྜᮦᩱࢆస〇࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬4. ⤖ゝ
ᮏ◊✲࡛ࡣ㸪࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ୖ࡟ 3D ࣉࣜࣥࢱ࣮ࢆ⏝࠸࡚ᶞ⬡ࢆ┤᥋༳ๅ᥋ྜࡋ」ྜᮦᩱࢆస〇ࡍࡿ㝿࡟㸪༳ๅࡍࡿᶞ
⬡ෆ㒊ࡢ඘ሸ⋡ࢆኚ᭦ࡍࡿࡇ࡜࡛㸪≉ᛶࡢ␗࡞ࡿᶞ⬡࡜࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢ」ྜᮦᩱࢆస〇࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ㅰ㎡ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪⸨஭ⱥಇᩍᤵࡢࡈᣦᑟ࡟ࡼࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 123 −

㻭㻢㻜㻢㻝 䛾ᦶ᧿ᅽ᥋䛻䛚䛡䜛᥋ྜᗘ䛾ప໬䛜⥅ᡭᙉᗘྥୖ䛻ཬ䜌䛩ᙳ㡪㱟㇂኱Ꮫ ⌮ᕤᏛ㒊 ᶵᲔࢩࢫࢸ࣒ᕤᏛ⛉
┈㔝 ᓅⓏ
㻝㻚 ⥴ゝ
ᯒฟᙉ໬ᆺࡢ࢔࣑ࣝࢽ࣒࢘ྜ㔠 A6061 ࡣ⪏㣗ᛶ࡟ඃࢀ࡚࠸ࡿࡓࡵ㞵㢼࡟ᙉࡃ㸪⯪⯧ࡸ㌴
୧㸪㝣ୖᵓ㐀≀࡞࡝࡟ከࡃ⏝࠸ࡽࢀࡿ㸬ࡋ࠿ࡋࡑࡢ୍᪉࡛㸪௚ࡢ࢔࣑ࣝྜ㔠࡟ẚ࡭࡚⁐᥋᫬ࡢᙉᗘపୗࡀ㢧ⴭ࡛࠶ࡾ㸪ࡑࡢ౑⏝⠊ᅖࡀ㝈ࡽࢀࡿ㸬ࡑࡇ࡛࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢᦶ᧿ᅽ᥋⥅ᡭࡀὀ┠ࡉࢀ࡚࠸ࡿࡀ㸪A6061 ࡢ⥅ᡭຠ⋡ࡣ 87%࡟␃ࡲࡿ[1]㸬ࡇࢀ࡟ᑐࡋ㸪᥋ྜᅽຊࡢ
ቑຍ࡟ࡼࡿ᥋ྜ ᗘࡢపୗ㸦ไᚚ㸧ࡀሗ࿌ࡉࢀ࡚࠸ࡿ[2]㸬ᮏ◊✲࡛ࡣ㸪᥋ྜ ᗘࡢไᚚ࡟ࡼ
ࡿ A6061 ࡢ 100%⥅ᡭຠ⋡ࡢᐇ⌧ࢆ┠ⓗ࡜ࡋࡓ㸬㻞㻚 ᐇ㦂᪉ἲ
᥋ྜᅽຊࢆ㸪125~350 MPa ࡢ⠊ᅖ࡛ኚ໬ࡉࡏ㸪ᦶ᧿ᅽ᥋ࢆ⾜ࡗࡓ㸬౪ヨᮦ࡜ࡋ࡚㸪A6061-T6
୸Წ㸦ȭ10㸪㛗ࡉ 100 mm㸧ࢆ⏝࠸ࡓ㸬ᦶ᧿ᅽ᥋᮲௳ࡣ㸪ᅇ㌿ᩘ 1000 rpm㸪ࡼࡾࡋࢁ 3 mm㸪࡜ࡋࡓ㸬ࡇࡢ࡜ࡁ㸪⇕⏬ീ࣓࢝ࣛࢆ⏝࠸࡚㸪᥋ྜ୰ࡢ᭱㧗 ᗘࢆ ᐃࡋࡓ. ࡑࡢᚋ㸪ᚓࡽࢀࡓ⥅ᡭ࡟ࡘ࠸࡚ᘬᙇヨ㦂ࢆ⾜࠸㸪ᘬᙇᙉᗘ࡜◚᩿ᙧែࡢホ౯ࢆ⾜ࡗࡓ㸬స〇ࡋࡓ⥅ᡭ࠿ࡽ᥋ྜ㒊ࢆษࡾฟࡋ࡚ᶞ⬡ໟᇙࡋࡓࡢࡕ㸪᥋ྜ㒊᩿㠃ࢆ㙾㠃ࡲ࡛◊☻ࡋࡓ㸬㙾㠃◊☻ᚋ㸪ගᏛ㢧ᚤ㙾
㸦BX53M㸪OLYMPUS㸧࡟ࡼࡗ࡚᥋ྜ㒊ࡢᙧែほᐹࢆ⾜ࡗࡓ㸬ࡲࡓ㸪ᜏ

ᵴ࡛ A6061 ẕᮦࢆຍ⇕ࡋ㸪㧗 ≧ែ࡛ࡢᅽ⦰ヨ㦂ࢆ⾜ࡗࡓ㸬㻟㻚 ᐇ㦂⤖ᯝ䛚䜘䜃⪃ᐹ
ᅗ 1 ࡟᥋ྜᅽຊ࡜ᘬᙇᙉᗘࡢ㛵ಀࢆ♧ࡍ㸬᥋ྜᅽຊ 175 MPa ௨ୗ࡛ࡣ㸪᥋ྜᅽຊࡢቑຍ
࡟క࠸ᘬᙇᙉᗘࡀቑຍࡋࡓ㸬ࡲࡓ⥅ᡭࡣ᥋ྜ㒊࡛◚᩿ࡋࡓ㸬᥋ྜᅽຊ 200 MPa ௨ୖ࡛ࡣ㸪᥋ྜᅽຊ࡟ࡼࡽࡎ⣙ 315 MPa ࡢᘬᙇᙉᗘࢆಖࡕ㸪ẕᮦ㒊࡛◚᩿ࡋࡓ㸬

ᅗ 1 ᥋ྜᅽຊ࡜ᘬᙇᙉᗘࡢ㛵ಀ− 124 −

ᅗ 2 ࡟᥋ྜᅽຊ࡜᥋ྜ᫬ࡢ᭱㧗 ᗘࢆ♧ࡍ㸬᥋ྜᅽຊࡢቑຍ࡟క࠸᥋ྜ᫬ࡢ᭱㧗 ᗘࡀపୗࡋࡓ㸬ẕᮦ◚᩿ࡋࡓ᥋ྜᅽຊ 200 MPa ௨ୖࡢ⥅ᡭࡢ᥋ྜ ᗘࡣ 200 Υ௨ୗ࡛࠶ࡗࡓ㸬ࡼࡗ࡚᥋ྜ ᗘ⣙ 200 Υࡀ◚᩿ᙧែࡢ㑄⛣᮲௳࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡇࡢ࡜ࡁࡢ᥋ྜᅽຊ
ࡀ 175~200 MPa ࡛࠶ࡿࡓࡵ㸪200 MPa ௨ୖࡢ᥋ྜ࡛ࡣ᥋ྜ ᗘࡀ 200 Υ௨ୗ࡟ಖࡓࢀ㸪⥅ᡭຠ⋡ 100 %ࡢ⥅ᡭࢆᚓࡿࡇ࡜ࡀྍ⬟ࡔ࡜⪃࠼ࡽࢀࡿ㸬ᅗ 2 ᥋ྜᅽຊ࡜᥋ྜ᫬ࡢ᭱㧗 ᗘࡢ㛵ಀ
ᅗ 3 ࡟㸪㧗 ≧ែ࡛ࡢᅽ⦰ヨ㦂࡟࠾ࡅࡿヨ㦂∦ ᗘ࡜ 0.2 㸣⪏ຊࡢ㛵ಀࢆ♧ࡍ㸬ࡇࢀࡼࡾ㸪A6061 ࡣప ≧ែ࡟࠾࠸࡚ࡶ㧗ᅽ࡛ࡢᅽ⦰࡟ࡼࡗ࡚ኚᙧࡍࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬⥅ᡭࡢ᩿㠃ࢆほᐹࡍࡿ࡜㸪᥋ྜ ᗘ 200 Υ௨ୗࡢ⥅ᡭ࡟ࡶ᥋ྜ⏺㠃࡟ᮍ᥋ྜ㡿ᇦࡀぢࡽࢀ࡞࠿ࡗ
ࡓ㸬ࡇࢀࡣ㸪A6061 ࡟኱ࡁ࡞᥋ྜᅽຊࡀ༳ຍࡉࢀࡓࡇ࡜࡛㸪᥋ྜ ᗘ 200 Υ௨ୗࡢప ࡛ࡶ↓Ḟ㝗⥅ᡭࡢ᥋ྜ࡟༑ศ࡞ኚᙧ㔞ࡀᚓࡽࢀࡓࡓࡵ࡜⪃࠼ࡽࢀࡿ㸬ᅗ 2 ᥋ྜᅽຊ࡜᥋ྜ᫬ࡢ᭱㧗 ᗘࡢ㛵ಀ
ཧ⪃ᩥ⊩
[1]

⠛⏣๛ࡽ㸸ᶵᲔᮦᩱ࣭ᮦᩱຍᕤᢏ⾡ㅮ₇఍ㅮ₇ㄽᩥ㞟, 2001.9(0)㸪59-60㸪2001.

[2]

Y. Morisada et al㸬㸸 Science and Technology of Welding and Joining, 25 (2020)㸪438-445.

㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 125 −

㠀㕲ᮦᩱࡢᦶ᧿ᨩᢾ᥋ྜ㸦FSW㸧࣭⥺ᙧᦶ᧿᥋ྜ㸦LFW㸧࡜⥅ᡭࡢᶵ⬟ホ౯
Ti-17 ྜ㔠࡟࠾ࡅࡿ LFW ࡜⤌⧊㤶ᕝ኱Ꮫ ๰㐀ᕤᏛ㒊 ᮦᩱ≀㉁⛉Ꮫ㡿ᇦ
ᯇᮏ ὒ᫂
㸬⥴ゝ
⥺ᙧᦶ᧿᥋ྜ(LFW)ࡣᮦᩱ㛫ࢆ✺ࡁࢃࡏ࡚ᅽ⦰࡜᥋ྜ㠃࡟࠾ࡅࡿ㧗㏿࡛ࡢࡏࢇ᩿ࢆ௜୚
ࡍࡿ஦࡛ᒁᡤᇦ࡟࡚ᅛ┦᥋ྜࡍࡿᡭἲ࡛㸪⯟✵ᶵ࢚ࣥࢪࣥ⏝࡛ࡢࣈ࣮ࣞࢻ࡜ࢹ࢕ࢫࢡࢆ୍
య໬᥋ྜຍᕤࡍࡿ࠸ࢃࡺࡿࣈࣜࢫࢡຍᕤ࡟ࡶ㐺⏝ࡉࢀ࡚࠸ࡿࠋ᥋ྜ㐣⛬࡛᥋ྜ㒊࡛ࡣᴟࡵ࡚㧗㏿࣭ከ㔞࡞ࡦࡎࡳࡀᑟධࡉࢀࡓຍᕤ࡜࡞ࡿࡓࡵ࡟㸪ᚤ⣽⤌⧊ࢆ࿊ࡋ㸪≉␗࡞⤌⧊ᙧᡂࢆ♧ࡍࠋᮏ◊✲࡛ࡣ㸪Ti-17 ྜ㔠(Ti-5Al-2Sn-2Zr-4Mo-4Cr)ࡢ LFW ᥋ྜᮦࢆᑐ㇟࡜ࡋ࡚㸪ࡇࡢ LFW ࡟⏤᮶ࡍࡿ≉␗࡞⤌⧊ᙧᡂ࡟ࡘ࠸࡚㸪ᚑ᮶ࡢረᛶຍᕤ㸦ᮏ◊✲࡛ࡣ⇕㛫ᅽᘏ࡟ࡼࡿᅽᘏ㔞ࢆኚ໬㸧࡟ࡼࡿ⤌⧊ኚ໬ࢆయ⣔ⓗ࡟ホ౯࣭ࡲ࡜ࡵ࡞ࡀࡽ㸪LFW ࡛ᙧᡂࡉࢀࡿ⤌⧊ᙧែ࡜ẚ㍑ࡋ࡚㸪ࡇࡢ LFW ᥋ྜ㐣⛬࡟࠾ࡅࡿ⤌⧊ኚ໬ࡢస⏝ᶵᵓࢆ᫂ࡽ࠿࡜ࡍࡿࠋ
㸬ᐇ㦂᪉ἲ
ຍᕤᮦ
࠙ᅽᘏຍᕤࠚ
-ᅽᘏ๓ヨᩱ㸸ཷࡅධࢀࡲࡲᮦ(࣓ࣛࣛ⤌⧊)ĺ 800ႏဨ
30min-Ἔ↝ධࢀ ĺ 600ႏ-1.5hr Ἔ↝ධࢀ㸦┠ⓗ㸸Fig.1
ࡢࡼ࠺࡞ Į+ȕ Bi-lamellar ⤌⧊ᙧᡂࢆ┠ⓗ㸧-ᅽᘏᗘ㸸 900ႏ㸪790ႏ

-ᅽᘏ᮲௳㸸ึᮇ⣲ᮦ(L30mm*W20mm*ཌࡉ 10mm) ĺ ᅽᘏ(ཌࡉ㸸5mm(ᅽୗ⋡ 50%), 3.5mm(65%), 2mm (80%))
࠙LFW ヨᩱ(Fig.1 ୗẁ)ࠚ-㧗

Fig.1 LFW ᥋ྜ⏝ヨᩱ(Ti-17 ྜ㔠)ࡢ⤌(900ႏ)࣭ప (790ႏ)LFW ᮦࢆ⸨஭◊ࡼࡾヨ౪㡬ࡃࠋ ⧊࡜㸪LFW ᥋ྜᚋࡢ᥋ྜయᴫほホ౯᪉ἲ㸸(1) ⤌⧊㸸 ᶓ᩿㠃࡛ࡢຍᕤ⤌⧊࡟ࡘ࠸࡚ SEM-཯ᑕ㟁Ꮚീ㸪EBSD ീ㸦᪉఩ࠊ⢏ᚄࠊ⢏⏺
㢖ᗘࠊLocal misorientation㸧࡟ࡼࡾほᐹࡍࡿࠋࡇࡇ࡛ࡣ㸪ຍᕤ ᗘ㸪ຍᕤ㔞࡜⤌⧊ᙧែࡢ㛵ಀᛶࢆయ⣔ⓗ࡟ࡲ࡜ࡵ࡚㸪ྛ✀⤌⧊ᅉᏊࢆᐃ㔞ⓗ࡟ゎᯒࡋ࡚㸪ຍᕤ᪉ἲࡢ⤌⧊࡟ཬࡰࡍᙳ
㡪ࢆヲ⣽࡟ẚ㍑࣭ホ౯ࡍࡿࠋ(2) ᶵᲔⓗ≉ᛶ㸸 ࢧࣈੈ࣭࣐࢖ࢡ࣮ࣟ࢜ࢲ࣮࡛ࡢ㡿ᇦ࡛ࡣࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂࡛◳ࡉࢆホ౯ࡋ㸪௚᪉࡛ࡼࡾᒁᡤ㡿ᇦ࡛ࡢྛᵓᡂ┦࣭⤌⧊ᙧែẖ࡛ࡢ◳ࡉࢆホ౯ࡍࡿࡓࡵ࣐࢖ࢡ࣭ࣟ
ࢼࣀ࢖ࣥࢹࣥࢸ࣮ࢩࣙࣥヨ㦂ࡶᐇ᪋ࡍࡿࠋ
(3) ᭷㝈せ⣲ィ⟬ゎᯒ(FEM)㸸Ti-17 ྜ㔠ࡢረᛶࢹ࣮ࢱ࠾ࡼࡧᐃ㔞ⓗ࡟ホ౯ࡉࢀࡓ⤌⧊ࢹ࣮ࢱࢆ㛵ಀ௜ࡅࡓ≀⌮❧⬮࡛⤌⧊ணࣔࢹࣝࢆసᡂ࣭ᵓ⠏ࡋ㸪ࡇࡢࣔࢹࣝࢆᑟධࡋࡓ᭷㝈せ⣲ゎᯒ࡟࡚ LFW ࡢィ⟬ゎᯒࡢᐇ᪋ࡍࡿࠋ

− 126 −

㸬ᐇ㦂⤖ᯝᅽᘏᮦ⤌⧊
Fig.2 ࡣᅽᘏຍᕤᮦࡢ SEM ཯ᑕ㟁Ꮚീ࠾ࡼࡧ EBSD ᪉఩ീ(ᅽᘏ᪉ྥ᪉఩)ࢆ♧ࡋ࡚࠸ࡿࠋ900ႏ࡛ࡢᅽᘏ࡛ࡣ
࡯ࡰ༢Ⰽ(ȕ ┦)࡛࡯ࡰ ȕ ༢┦⤌⧊ࢆ࿊ࡋ࡚࠸ࡿࠋࡇࡇ࡛
ࡣࢃࡎ࠿࡟㯮Ⰽ┦(Į ┦)ࡶほᐹࡉࢀࡿࡀ㸪ᅽᘏᚋࡢ෭༷
㐣⛬࡛ࢃࡎ࠿࡟⏕ᡂࡋࡓࡶࡢ࡜᥎ᐹࡉࢀࡿࠋᅽୗ⋡ࡀ
65㸣ࡲ࡛࡟ቑຍࡍࡿ࡟క࠸㸪⢒኱ ȕ ⢏ࡀᡥᖹ໬ࡉࢀᅽ
ᘏ᪉ྥ࡟ఙ㛗ࡋࡓ⤌⧊ࡀほᐹࡉࢀࡿ(SEM ീ࡛ࡣࡰࡸ
ࡅ࡚࠸ࡿࡶࡢࡢ㸪⢏⏺ࡣほᐹ࡛ࡁࡿ)ࠋ௚᪉࡛ 790ႏࡢ
ᅽᘏᮦ࡛ࡣ㯮Ⰽࡢ Į ┦ࡀᅽୗ⋡ࡢቑຍ࡟క࠸㸪ᅽᘏ᪉ྥ࡟㓄ྥࡋ࡚࠸ࡿᵝᏊࡀほᐹࡉࢀࡿࠋࡍ࡞ࢃࡕᅽᘏ㐣⛬ࡢ୺ࡦࡎࡳ᪉ྥ(ረᛶὶࢀ)࡟ Į ┦ࡣศ᩿(⌫≧໬)ࡍࡿ
ࡇ࡜࡞ࡃ㓄ྥࡍࡿࠋ୍᪉࡛ ȕ ┦࡛ࡣୗẁࡢ EBSD ᪉఩ീࡼࡾᅽୗ⋡ࡢቑຍ࡟క࠸ᅽᘏ᪉ྥ࡟<111>㓄ྥ࠿ࡽ<101>㓄ྥࡀࡼࡾᙉ໬ࡉࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡾ㸪ȕ ┦࡛ࡣຍᕤ㞟ྜ⤌⧊ࡀᙧᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡿࠋ
LFW ᥋ྜయ⤌⧊
Fig.3 ࡣ㧗

(900ႏ)LFW ᮦ࠾ࡼࡧప (790ႏ) LFW ᮦ

Fig.2 Ti-17 ྜ 㔠 ᅽ ᘏ ᮦ ࡢ ⤌ ⧊(SEM ീ, EBSD ᪉఩ീ(ୗẁ))ࡢ᥋ྜ㒊࠿ࡽẕᮦᇦࡲ࡛ࡢᚤ⣽⤌⧊ࢆࡲ࡜ࡵ࡚࠸ࡿࠋࡇࢀࡼࡾ㧗

LFW ᮦ࡛ࡣ᥋ྜ㒊࠿ࡽ

0.2 ੈࡢ㡿ᇦ࡛ࡣ༢┦⤌⧊ᙧែ(⌧᫬Ⅼ㸪EBSD ホ౯࠿ࡽ ȕ ༢┦⤌⧊࡜᥎ᐃ)ࢆ࿊ࡋ㸪᥋ྜ㒊࡛ࡣᅽຊ᪉ἲ࡟ᡥᖹ໬ࡋࡓ⤌⧊ࡀほᐹࡉࢀ㸪୍᪉࡛ 0.2 ੈࡢ㡿ᇦ࡛ࡣẚ㍑ⓗᚤ⣽࡞➼㍈༢┦⤌⧊ࢆ࿊ࡋ࡚࠸ࡿࠋ௚᪉࡛ప

LFW ᮦ࡛ࡣ᥋ྜ㒊࡛ࡣࡦࡎࡳࢥࣥࢺࣛࢫࢺࡀᙉ࠸ Įဨȕ ⤌⧊࡛㸪ᴟࡵ࡚ᚤ⣽࡞⤌⧊ᙧែࢆ࿊ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋ᥋ྜ㒊࠿ࡽ㞳ࢀࡿࢃࡎ࠿ 0.2 ੈࡢ㡿ᇦ࡛ࡣ౪ヨᮦࡢࣂ࢖࣓ࣛࣛ⤌⧊ࡀほᐹࡉࢀ㸪㧗

LFW ࡜ẚ㍑ࡋ࡚᥋ྜࡀᴟࡵ࡚ᒁᡤ࡞㡿ᇦ࡛⾜ࢃࢀࡓࡇ࡜ࡀ⌮ゎ࡛ࡁࡿࠋ௒ᚋࡢ◊✲ᒎ㛤࡛ࡣ㸪ྛ✀ረᛶຍᕤᮦ(ᅽᘏᮦ㸪㘫㐀ᮦ)ࡢ⤌⧊࠾ࡼࡧࡇࡢ LFW ᮦࡢ⤌⧊
ࢆࡼࡾヲ⣽࡟ホ౯࣭ゎᯒࡍࡿࡇ࡜࡛ LFW ⏤᮶ࡢ≉␗࡞⤌⧊ᙧᡂᶵᵓࢆ᫂ࡽ࠿࡜ࡍࡿࡇ࡜ࢆ
┠ⓗ࡜ࡋ࡚࠸ࡿࠋ

Fig.3 Ti-17 ྜ㔠 LFW ᥋ྜయࡢ⤌⧊ (㧗(900Υ)࠾ࡼࡧప

(790ႏ)᥋ྜయ) (SEM ീ)㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 127 −

⇿Ⓨᅽ╔ἲ࡟ࡼࡗ࡚〇㐀ࡋࡓ㖡ࢡࣛࢵࢻ㗰ᯈࢆᑐ㇟࡜ࡋࡓᦶ᧿ᨩᢾ᥋ྜᐑ㔝 Ὀᚁ 1㸪୰㐨 ⴌ 1㸪㔝ᓮ ᾏᩯ 1㸪ᑠᕝ ⿱㍜ 2㸪㕥ᮌ ぬ 2
1 ⛅⏣኱Ꮫ㸪2NUMO㸦ཎᏊຊⓎ㟁⎔ቃᩚഛᶵᵓ㸧㻝㻚⥴ゝ㻌㧗 ࣞ ࣋ ࣝ ᨺ ᑕ ᛶ ᗫ Რ ≀ ࢆ ᆅ ᒙ ฎ ศ ࡟ ౪ ࡍ ࡿ ᐜ ჾ㸦 ࢜ ࣮ ࣂ ࣮ ࣃ ࢵ ࢡ 㸧࡟ ࡘ ࠸ ࡚ ࠊ᪥ ᮏ ࡛ ࡣ Ⅳ ⣲ 㗰 ࢆᇶ ᮏ ᵓ 㐀 ᮦ ࡜ ࡋ ࡓ ᳨ ウ ࡀ 㐍 ࡵ ࡽ ࢀ ࡚ ࠸ ࡿ ࠋ୍ ᪉ ࠊ⪏ 㣗 ᛶ ࡟ ඃ ࢀ ࡿ 㖡 ࢆ ࢜ ࣮ ࣂ ࣮ ࣃ ࢵ ࢡ ᮦ ࡟ ά ⏝ ࡋ ࡼ࠺ ࡜ ࠸ ࠺ ᡓ ␎ ࡀ ໭ Ḣ ࠊ࢝ ࢼ ࢲ ࢆ ୰ ᚰ ࡟ ᒎ 㛤 ࡉ ࢀ ࡚ ࠸ ࡿ ࠋࡇ ࡢ ࡼ ࠺ ࡞ ⫼ ᬒ ࠿ ࡽ ࠊNUMO㸦 Nuclear Waste
Management Organization of Japan㸧ཎ Ꮚ ຊ Ⓨ 㟁 ⎔ ቃ ᩚ ഛ ᶵ ᵓ ࡟ ࠾ ࠸ ࡚ ࡶ ࠊ࢝ ࢼ ࢲ ࡢ NWMO㸦 Nuclear
Waste Management Organization㸧 ࡜ ඹ ྠ ࡛ ࠊ Ⅳ ⣲ 㗰 ᐜ ჾ ࡢ ⾲ ᒙ ࡟ 㖡 ࡢ 㟁 Ẽ ࣓ ࢵ ࢟ ᒙ ࢆ ᙧ ᡂ ࡉ ࡏ ࡓ 」
ྜ ࢜ ࣮ ࣂ ࣮ ࣃ ࢵ ࢡ ࡢ 〇 㐀 ໬ ᢏ ⾡ ࡟ ࡘ ࠸ ࡚ ᳨ ウ ࡀ 㐍 ࡵ ࡽ ࢀ ࡚ ࠸ ࡿ ࠋ㖡 」 ྜ ࢜ ࣮ ࣂ ࣮ ࣃ ࢵ ࢡ ࡢ ᥋ ྜ ᪋ ᕤ࡟ ࡣ ࠊ㖡 ᒙ ࡬ ࡢ ⇕ ࡦ ࡎ ࡳ ࡢ ప ῶ ࠊస ᴗ ⪅ ࡬ ࡢ ᨺ ᑕ ⥺ ⿕ ⇿ ࡢ ㍍ ῶ ࡞ ࡝ ࡀ ồ ࡵ ࡽ ࢀ ࡿ ࠋᡃ ࠎ ࡣ ࠊ᥋ ྜ ᫬ࡢ ධ ⇕ ไ ᚚ ᛶ ࠊ ࣉ ࣟ ࢭ ࢫ 㞺 ᅖ Ẽ ࡸ ⥅ ᡭ ࡢ ⮬ ⏤ ᗘ ࠊ 㐲 㝸 /↓ ே ໬ ࡬ ࡢ ᣑ ᙇ ᛶ ࡞ ࡝ ࡢ Ⅼ ࡛ ඃ ఩ ᛶ ࡀ ᮇ ᚅ࡛ ࡁ ࡿ ᦶ ᧿ ᨩ ᢾ ᥋ ྜ ᢏ ⾡ ࡟ ╔ ┠ ࡋ ࠊ࢜ ࣮ ࣂ ࣮ ࣃ ࢵ ࢡ ᪋ ᕤ ࡬ ࡢ 㐺 ⏝ ࢆ ᝿ ᐃ ࡋ ࡓ ᳨ ウ ࢆ ࠾ ࡇ ࡞ ࡗ ࡚ ࠸ ࡿ ࠋᮏ ◊ ✲ ࡛ ࡣ ࠊ NWMO 〇 㖡 ࣓ ࢵ ࢟ ᒙ ࡢ ཌ ࡉ ࢆ ␲ ఝ ࡋ ࡓ 㖡 ࢡ ࣛ ࢵ ࢻ 㗰 ᯈ ࢆ ᑐ ㇟ ࡟ ✺ ྜ ࡏ ⥅ ᡭ ࢆ స 〇ࡋ ࠊ᩿ 㠃 ࣐ ࢡ ࣟ ほ ᐹ ࠊ◳ ࡉ ヨ 㦂 ࠊ᥋ ྜ 㒊 ⤌ ⧊ ࡢ ⪏ 㣗 ᛶ ホ ౯ ࢆ ᐇ ᪋ ࡋ ࡓ ࠋᮏ ሗ ࿌ ࡛ ࡣ ࠊ800 rpm – 600
mm/minࠊ 950 rpm - 600 mim/min ࠾ ࡼ ࡧ 1100 rpm – 600 mm/min ࡢ 3 ᮲ ௳ ࡢ ⤖ ᯝ ࡟ ࡘ ࠸ ࡚ ሗ ࿌ ࡍ ࡿ ࠋ
㻞㻚

ᐇ㦂᪉ἲ㻌

㻞㻚㻝㻌 ౪ ヨ ᮦ 㻌ྜ ࡏ ᯈ ࢆ ↓ 㓟 ⣲ 㖡 JIS-H3100㸦 C1020P㸧 , ẕ ᮦ ࢆ ⁐ ᥋ ᵓ 㐀 ⏝ ᅽ ᘏ 㗰 ᯈ JIS-G3106㸦 SM490A㸧 ࡜ࡋ㸪⇿Ⓨᅽ╔ἲ࡟ࡼࡗ࡚〇㐀ࡉࢀࡓ㖡ࢡࣛࢵࢻ㗰ᯈࢆ౑⏝ࡋࡓࠋ㻞㻚㻞㻌 ᦶ ᧿ ᨩ ᢾ ᥋ ྜ ヨ 㦂 㻌
350 L × 50 W × 10.5 t mm㸦 㖡 ࢡ ࣛ ࢵ ࢻ ᒙ ࡢ ཌ ࡉ ࡣ 3.5 mm㸧 ࡢ 㖡 ࢡ ࣛ ࢵ ࢻ 㗰 ᯈ ࡟ ᑐ ࡋ ✺ ྜ ࡏ ᥋ ྜ ࢆ
⾜ ࡗ ࡓ ࠋࢩ ࣙ ࣝ ࢲ ࣮ ᚄ 15 mmࠊࣉ ࣟ ࣮ ࣈ ᚄ 6 mmࠊࣉ ࣟ ࣮ ࣈ 㛗 2.9 mm ࡢ ㉸ ◳ ྜ 㔠 〇 ࢶ ࣮ ࣝ ࢆ ౑ ⏝ ࡋࡓ ࠋ ๓ 㐍 ゅ ࢆ 3 °࡟ タ ᐃ ࡋ ࠊ ᥋ ྜ ୰ ࡣ ࠊ ᯈ ᮦ /ࢶ ࣮ ࣝ ࡢ 㓟 ໬ 㜵 Ṇ ࡢ ࡓ ࡵ ὶ 㔞 18 L/min ࡢ Ar ࢞ ࢫ ࡛ ࢩ࣮ ࣝ ࢻ ࡋ ࡓ ࠋᅇ ㌿ ㏿ ᗘ㸸200㹼 1250 rpmࠊ᥋ ྜ ㏿ ᗘ㸸100㹼 950 mm/min ࡢ ⠊ ᅖ ࡛ ᥋ ྜ ᮲ ௳ ࢆ 㑅 ᐃ ࡋ ࠊ᥋ྜ୰ࡢධ⇕㔞ࡀ␗࡞ࡿ⥅ᡭࢆྲྀᚓࡋࡓࠋ
㻞㻚㻟㻌 ᥋ ྜ 㒊 ᩿ 㠃䝬䜽䝻ほ ᐹ 䛚䜘䜃䝡䝑䜹䞊䝇◳䛥ヨ 㦂 㻌 ⥅ ᡭ ࡢ ⤊ ➃ ഃ ࠿ ࡽ 110 mm ࡢ ఩ ⨨ ࢆ ᥋ ྜ ⥺ ࡟ 10 mm ᖜ ࡛ ᆶ ┤ ࡟ ษ ᩿ ࡋ ࡓ ࡶ ࡢ ࢆ ヨ ᩱ ࡜ ࡋ ࡓ ࠋホ ౯㠃 ࢆ ࢚ ࣓ ࣜ ࣮ ⣬ 㸦 #1200 ࡲ ࡛ 㸧 ࡛ ‵ ᘧ ◊ ☻ ࡋ ࡓ ᚋ ࠊ ሷ 㓟 ࠊ ሷ ໬ 㕲 ࠊ ཬ ࡧ ࢚ ࢱ ࣀ ࣮ ࣝ (HCl㸸 FeCl 2 㸸
C 2 H 5 OH=5㸸1㸸12)ࡢ ΰ ྜ ⁐ ᾮ ࡛ ࢚ ࢵ ࢳ ࣥ ࢢ ࡋ ࠊࢹ ࢪ ࢱ ࣝ 㢧 ᚤ 㙾 ࡛ ほ ᐹ ࡋ ࡓ ࠋྠ ヨ 㦂 ∦ ࢆ ෌ ◊ ☻ ᚋ ࠊ࣐ ࢖ ࢡ ࣟ ࣅ ࢵ ࢝ ࣮ ࢫ ◳ ᗘ ィ AMT-X7FS-B㸦 ࣐ ࢶ ࢨ ࣡ 〇 㸧 ࢆ ౑ ⏝ ࡋ ࠊ ༳ ຍ Ⲵ 㔜 2.94 Nࠊ ಖ ᣢ ᫬ 㛫 20
sec ࡟ ࡚ ◳ ࡉ ヨ 㦂 ࢆ ᐇ ᪋ ࡋ ࡓ ࠋᐃ ࡣ ᥋ ྜ ⏺ 㠃 ࠿ ࡽ ୧ ➃ ࡟ 15 mm ༊ 㛫 ࠊィࡋ ࠊ ⾲ 㠃 ࠿ ࡽ ⿬ 㠃 ᪉ ྥ ࡟ 1.5 mm ࡢ ఩ ⨨ ࢆ㛫 㝸 ࡣ 0.5 mm×61 Ⅼ ࡜ᐃࡋࡓࠋ㻞㻚㻠㻌 ⭉ 㣗 ヨ 㦂 㻌 ヨ ᩱ ᴟ ࡣ ⁐ ᥋ ⥺ ࢆ ⾲ 㠃 ୰ ኸ ࡟ ྵ ࡴ ĳ24 × 3 t mm ࡢ ᵓ ᡂ ࡜ ࡋ ࠊ ⾲ 㠃 ࢆ 㙾 㠃 ௙ ୖ ࡆ 㸦 ࢲ ࢖ ࣖ ࣔ ࣥ ࢻ ࣮࣌ ࢫ ࢺ㸸3Pm㸧ᚋ ࠊ㛤 ཱྀ 㒊㸦 1 cm 2 㸧ࡢ ヨ ᩱ ࣍ ࣝ ࢲ ࣮ ࡟ タ ⨨ ࡋ ࡓ ࠋ㟁 Ẽ ໬ Ꮫ ࢭ ࣝ ࡣ ࠊ୕ 㟁 ᴟ ᪉ ᘧ ࡜ ࡋ ࠊཧ ↷ ᴟ ࡟ ࡣ Ag-AgCl㟁 ᴟ ࠊ ᑐ ᴟ ࡟ ࡣ ⓑ 㔠 㟁 ᴟ ࢆ ౑ ⏝ ࡋ ࡓ ࠋ ᆅ ୗ Ỉ ࡢ ⤌ ᡂ ࢆ ␲ ఝ ࡋ ࡓ 4✀ 㢮 ࡢ ౪ ヨ ᾮ
㸦 (a) NaHCO 3 (0.001M), (b)NaHCO 3 (0.001M)+NaCl(0.1M), (c) NaHCO 3 (0.001M)+NaCl(0.5M), (d)NaSO 4 (0.6M) 㸧ࢆ ౑ ⏝ ࡋ ࠊᨺ ᑕ ᛶ ᔂ ቯ ࡟ క ࠺ ࢜ ࣮ ࣂ ࣮ ࣃ ࢵ ࢡ ࿘ ᅖ ࡬ ࡢ ⇕ ᙳ 㡪 ࢆ ⪃ ៖ ࡋ ࡓᗘ㸸80 ႏࠊᆅ ᒙ ୰ ࡢ 㓟 ⣲ ⃰ ᗘ ࢆ ⪃ ៖ ࡍ ࡿ ࡓ ࡵ ❅ ⣲ ࣃ ࣮ ࢪ ࡟ ࡼ ࡿ ᎘ Ẽ ⎔ ቃ ࢆ ෌ ⌧ ࡋ ࡓ ࠋ -1200 mV vs. Ag-AgCl࡛࢝ ࢯ ࣮ ࢻ ฎ ⌮ ࢆ 2 min ᐇ ᪋ ᚋ ࠊ ⮬ ↛ 㟁 ఩ᐃ ࢆ 1 hr ⾜ ࠸ ࠊ ࡑ ࡢ ᚋ 10 mV/minࡢ ㏿ ᗘ ࡛ 500 mV vs. Ag-− 128 −

AgClࡲ ࡛ ࢔ ࣀ ࣮ ࢻ ศ ᴟ ࢆ ᐇ ᪋ ࡋ ࡓ ࠋ
㻟㻚

ᐇ㦂⤖ᯝ㻌

㻟㻚㻝㻌 ᩿ 㠃䝬䜽䝻ほ ᐹ 㻌ᅗ 1࡟ ほ ᐹ ⤖ ᯝ ࢆ ♧ ࡍ ࠋ ඲ ࡚ ࡢ ᮲ ௳ ࡛ Ḟ 㝗 ࡢ࡞࠸೺඲࡞᥋ྜ⤌⧊ࡀᙧᡂࡉࢀ࡚࠸ࡿࠋࡲ
ࡓࠊ࠾࠾ࡁ࡞ࣂࣜࡢⓎ⏕ࡶ࡞࠸ࡇ࡜࠿ࡽධ⇕ࡶ㐣๫࡜࡞ࡽ࡞࠸⠊ᅖ࡛ไᚚࡉࢀ࡚࠸ࡓࡇ

ᅗ 1. ᩿㠃䝬䜽䝻ほᐹ⤖ ᯝ㻌 (a) 800 rpm – 600 mm/min䚸࡜ࡀ♧၀ࡉࢀࡿࠋ

(b) 950 rpm - 600 mim/min, (c) 1100 rpm – 600 mm/min ◳ ࡉ ヨ 㦂 100 ᅗ 2࡟ ྛ ᥋ ྜ ⥅ ᡭ ᩿ 㠃 ࡢ ࣅ ࢵ ࢝ ࣮ ࢫ ◳ ࡉ ศᮦࡼࡾࡶࡸࡸ◳ࡃ࡞ࡿഴྥࡀ☜ㄆࡉࢀࡓࠋ
ࡓࡔࡋࠊᨩᢾ㒊ࡢ◳໬ࡢᗘྜ࠸ࡣࠊᅇ㌿㏿ᗘࡀ኱ࡁ࠸࡯࡝ᑠࡉࡃ࡞ࡿഴྥࡀ♧ࡉࢀࡓࠋ୍⯡࡟ࠊᅇ㌿㏿ᗘࡢ኱ࡁ࡞᮲௳࡯࡝ࠊ
ධ⇕ࡀ኱ࡁࡃ࡞ࡿࡇ࡜࠿ࡽࠊ◳໬ࡢᢚไࡉ
ࢀࡿഴྥࡣࠊ┦ᑐⓗ࡟᥋ྜ90

Vickers hardness (HV)ᕸࢆ♧ࡍࠋ඲࡚ࡢ᮲௳࡛ᨩᢾ㒊ࡢ◳ࡉࡀẕ

800-600
950-600
1100-600

ᗘࡀ㧗ࡃ࡞ࡗ

80

70

60ࡓ᮲௳࡛⤖ᬗ⢏ࡢ⢒኱໬ࡀಁ㐍ࡉࢀࡓᙳ㡪-15࡜⪃ᐹࡉࢀࡿࠋ ᅗ 3࡟ NaHCO 3 (0.001M)+NaCl(0.1M)ࢆ ⤌ ᡂ

600

1100 rpm ࡢ ᅇ ㌿ ᮲ ௳ ࡛ ࡣ 㑄 ⛣ ᆺ ࡢ ᣲ ື ࢆ ♧ࡍഴྥࡀ☜ㄆࡉࢀࡓࠋẕᮦ࡟ᑐࡋ᥋ྜ⤌⧊ࢆ᭷ࡍࡿヨᩱࡣ㟁ὶ್ࡀࡸࡸ኱ࡁࡃ࡞ࡿഴ

400

Potenrial (mV vs.Ag-AgCl)୙ ാ ែ ᇦ ࡀ ☜ ㄆ ࡉ ࢀ ࡓ ࠋ ࡋ ࠿ ࡋ ࠊ 950rpm,

0

5

10

15

800-600
950-600
1100-600
Base metal

500

࡜ࡍࡿ౪ヨᾮ୰࡛ᐇ᪋ࡋࡓ࢔ࣀ࣮ࢻศᴟヨᑠ ࡢ 800 rpmࡢ ᮲ ௳ ࡛ ࡣ ࠊ ཷ ධ ᮦ ࡜ ࡢ ᫂ ░ ࡞-5Distance from welds interface (mm)ᅗ 㻞㻚㻌 ⥅ᡭ᩿ 㠃䛾䝡䝑䜹䞊䝇◳䛥ศᕸ 㻌 ⭉ 㣗 ヨ 㦂 㦂 ࡢ ⤖ ᯝ ࢆ ♧ ࡍ ࠋ ᮲ ௳ ࡢ ୰ ࡛ ᅇ ㌿ ㏿ ᗘ ࡀ ᭱

-10

300
200
100
0

-100
-200
-300
-400

ྥ ࡀ ☜ ㄆ ࡉ ࢀ ࡿ ࡀ ࡑ ࡢ ኱ ࡁ ࡉ ࡣ ᩘ ༑ PA࡜ ᭷

10-2
0.01000

10-1
0.10000ព࡞኱ࡁࡉࡣ♧ࡉࢀ࡞࠿ࡗࡓࠋ᥋ྜ᮲௳ࡢ
㐪࠸࡟౫Ꮡࡋࡓ⭉㣗ᣲືࡢ㐪࠸ࡣࠊᨩᢾ㒊⤌⧊

100
1.00000

101
10.00000102100.00000

Current Density (PA/cm2)

103 10000.00000
1000.00000

ᅗ 㻟㻚㻌 ྛ✀౪ヨᾮ ୰䛷䛾䜰䝜䞊䝗ศᴟᣲື㻌 㻌 㻌ࡢᙳ㡪ࡀ♧၀ࡉࢀࡿࠋヲ⣽࡟ࡘ࠸࡚ࡣ⌧ᅾㄪᰝ୰࡛࠶ࡿࠋ㻠㻚⤖ゝ
NWMO 〇 㖡 ࣓ ࢵ ࢟ ᒙ ࡢ ཌ ࡉ ࢆ ␲ ఝ ࡋ ࡓ 㖡 ࢡ ࣛ ࢵ ࢻ 㗰 ᯈ ࡟ ᑐ ࡋ ᦶ ᧿ ᨩ ᢾ ᥋ ྜ ࢆ ✺ ྜ ࡏ ᮲ ௳ ࡛ ᐇ ᪋ࡋ ࡓ ࠋ 800 rpm - 600 mm/minࠊ 950 rpm - 600 mm/min ࠾ ࡼ ࡧ 1100 rpm - 600 mm/min ࡢ 3 ᮲ ௳ ࡛ స 〇ࡋࡓ⥅ᡭ࡟ᑐࡋࠊ᩿㠃࣐ࢡࣟ⤌⧊ほᐹࠊ◳ࡉヨ㦂ࠊ⪏㣗ᛶホ౯ࢆᐇ᪋ࡋ௨ୗࡢ⤖ㄽࢆᚓࡓࠋ
㸦㸯㸧඲࡚ࡢ᥋ྜ᮲௳࡛ࠊḞ㝗ࡢ࡞࠸೺඲࡞᥋ྜ⤌⧊ࡢྲྀᚓ࡟ᡂຌࡋࡓࠋ
㸦㸰㸧⥅ᡭᨩᢾ㒊ࡣࠊ࠸ࡎࢀࡢ᮲௳࡟࠾࠸࡚ࡶẕᮦ࡟ᑐࡋࡸࡸ◳ࡃ࡞ࡿഴྥࡀ☜ㄆࡉࢀࡓࠋ㸦 㸱 㸧 ᥋ ྜ ᮲ ௳ ࡢ 㐪 ࠸ ࡟ ࡼ ࡾ ࠊ ୙ ാ ែ ᆺ ࠿ ࡽ 㑄 ⛣ ᆺ ࡬ ࡜ ⭉ 㣗 ᣲ ື ࡀ ኚ ໬ ࡍ ࡿ ࡇ ࡜ ࢆ ☜ ㄆ ࡋ ࡓ ࠋ 㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 129 −

㻿㼁㻿㻟㻜㻠 ⷧ⫗㓄⟶䛾⥅ᡭ≉ᛶ䛻ཬ䜌䛩ᦶ᧿ᅽ᥋᮲௳䛾ᙳ㡪㻌㻌㱟㇂኱Ꮫ ඛ➃⌮ᕤᏛ㒊 ᶵᲔᕤᏛ࣭ࣟ࣎ࢸ࢕ࢡࢫㄢ⛬᳃ ṇ࿴㻝㻚㻌 ⥴ゝ㻌ⷧ⫗⟶ᮦࡣ㸪㓄⟶ᮦࡸ㍺㏦ᶵჾ㒊ရ࡞࡝ᵝࠎ࡞ศ㔝࡛౑⏝ࡉࢀ࡚࠸ࡿ㸬ᅛ┦᥋ྜἲࡢࡦ࡜
ࡘ࡛࠶ࡿᦶ᧿ᅽ᥋ࡣ㸪ⷧ⫗⟶ᮦࡢ᥋ྜ࡟ࡶ㐺⏝ྍ⬟࡞ᡭἲ࡛࠶ࡿࡇ࡜࠿ࡽ㸪ⷧ⫗෇⟶ࡢ᥋ྜ࡟㛵ࡍࡿ◊✲ࡀ⾜ࢃࢀ࡚ࡁࡓ 1),2)㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ᦶ᧿ᅽ᥋࡟ࡼࡾ᥋ྜࡋࡓ㓄⟶⏝ⷧ⫗⟶ᮦࡢ⥅ᡭ≉ᛶ࡟ཬࡰࡍᦶ᧿ᅽ᥋᮲௳ࡢᙳ㡪࡟ࡘ࠸࡚ࡣ༑ศ࡟ࡣ᫂ࡽ࠿࡟ࡉࢀ࡚࠸࡞࠸㸬ᮏ◊✲࡛ࡣ㸪እᚄ 25.4 mm㸪⫗ཌ 1.2 mm ࡢ SUS ⷧ⫗⟶ᮦࢆ⏝࠸ࡓᦶ᧿ᅽ᥋ࢆ⾜࠸㸪⥅ᡭ≉ᛶ࡟ཬࡰࡍ
ᦶ᧿ᅽ᥋᮲௳ࡢᙳ㡪ࢆㄪᰝࡋࡓ⤖ᯝࢆሗ࿌ࡍࡿ㸬㻌㻞㻚㻌 ᐇ㦂᪉ἲ㻌౪ヨᮦࡣ㸪እᚄ 25.4 mm㸪⫗ཌ 1.2 mm ࡢ SUS304 ⷧ⫗⟶ᮦ࡛࠶ࡿ㸬ᦶ᧿ᅽ᥋᮲௳ࡣ Table 1࡟♧ࡍ㏻ࡾ࡛࠶ࡿ㸬࢔ࢵࣉࢭࢵࢺᅽຊࡣ㸪ᦶ᧿ᅽຊࡢ 2 ಸࡢ್࡜ࡋࡓ㸬స〇ࡋࡓ⥅ᡭ࠿ࡽษࡾฟࡋࡓ᥋ྜ㒊ࢆᶞ⬡ໟᇙࡋࡓࡢࡕ㸪᥋ྜ㒊᩿㠃ࢆ㙾㠃ࡲ࡛◊☻ࡋࡓ㸬㙾㠃◊☻ᚋ㸪⋤Ỉ࡟ࡼࡿ࢚ࢵࢳࣥࢢࢆ⾜࠸㸪᥋ྜ㒊ࡢᚤ⣽⤌⧊ࢆගᏛ㢧ᚤ㙾㸦BX53M㸪OLYMPUS㸧࠾ࡼࡧ㟁Ꮚ㢧ᚤ㙾㸦JIB-4601F㸪JEOL㸧࡟࡚ほᐹࡋࡓ㸬ࡲࡓ㸪᥋ྜ㒊᩿㠃࡟࠾ࡅࡿࣅࢵ࣮࢝ࢫ◳ࡉࡶᐃࡋࡓ㸬⥅ᡭᙉᗘࡣ㸪ᘬᙇヨ㦂࡟ࡼࡾホ౯ࡋࡓ㸬ⷧ⫗⟶ᮦࡢᘬᙇヨ㦂ࢆᐇ᪋ࡍࡿࡓࡵ㸪స〇ࡋࡓ⥅ᡭࡢ୧➃࡟ᚰ㔠ࢆᤄධ࣭ᅛᐃࡋ㸪⥅ᡭࡢ୧➃ࢆᘬᙇヨ㦂἞ල࡟ᥗࡲࡏ㸪ᘬᙇヨ㦂ࢆᐇ᪋ࡋࡓ㸬Table 1 Friction welding conditions in this study
Rotation speed

Friction pressure

Friction time

Forging pressure

Forging time

(rpm)

(MPa)

(s)

(MPa)

(s)

1

7,000

20

0.5

40

10

2

7,000

30

0.5

60

10

3

7,000

40

0.5

80

10

4

7,000

40

1.0

80

10

No.

㻟㻚㻌 ᐇ㦂⤖ᯝ䛚䜘䜃⪃ᐹ㻌ᅇ㌿ᩘ࡜ᦶ᧿᫬㛫ࢆ୍ᐃ࡜ࡋ㸪ᦶ᧿ᅽຊࢆኚ໬ࡉࡏ࡚ᦶ᧿ᅽ᥋ࢆ⾜࠸㸪ᚓࡽࢀࡓ⥅ᡭࡢᙉᗘࢆホ౯ࡋࡓ⤖ᯝࢆ Table 2 ࡟♧ࡍ㸬⥅ᡭຠ⋡ࡣ㸪ࡑࢀࡒࢀ 67 㸣㸦No.1㸧
㸪91 %㸦No.2㸧
㸪100 %
㸦No.3㸧࡛࠶ࡾ㸪ᦶ᧿ᅽຊࡢቑຍ࡜࡜ࡶ࡟ྥୖࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬࡞࠾㸪No.3 ࡢᦶ᧿ᅽ᥋
᮲௳࡛ᚓࡽࢀࡓ⥅ᡭࡢ◚᩿఩⨨ࡣẕᮦ࡛࠶ࡗࡓ㸬No.3 ࡢᦶ᧿ᅽ᥋᮲௳࡛ᚓࡽࢀࡓ⥅ᡭࡢ᩿㠃⤌⧊෗┿ࢆ Fig.1 ࡟♧ࡍ㸬ࡁ⿣ࡸᮍ᥋ྜ㒊ࡣ㸪᥋ྜ㒊࡟࠾࠸࡚ほᐹࡉࢀ࡞࠿ࡗࡓ㸬᥋ྜ⏺㠃࠿

− 130 −

ࡽ⣙ 0.5 mm ࡢ㡿ᇦ࡟࠾ࡅࡿ⤖ᬗ⢏ࡢ኱ࡁࡉࡣ㸪ẕᮦ࡜ẚ㍑ࡋ࡚ᑠࡉ࠸ࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ẕᮦཬࡧ᥋ྜ⏺㠃௜㏆ࡢᚤ⣽⤌⧊ࢆ FE-SEM ࡛ほᐹࡋࡓ࡜ࡇࢁ㸪ẕᮦࡢ⤖ᬗ⢏ᚄࡀ 10 m ⛬ᗘ࡛࠶ࡿࡢ࡟ᑐࡋ࡚㸪᥋ྜ⏺㠃௜㏆ࡢ⤖ᬗ⢏ᚄࡣᩘ m ⛬ᗘ࡜࡞ࡗ࡚࠾ࡾ㸪⤖ᬗ⢏ࡢᚤ⣽໬ࡀ⏕ࡌ࡚࠸ࡓ㸬㐺ษ࡞ᦶ᧿ᅽຊ࠾ࡼࡧ࢔ࢵࣉࢭࢵࢺᅽຊࢆ⏝࠸ࡿࡇ࡜࡛㸪᥋ྜ⏺㠃࡟ᮍ᥋ྜ㡿ᇦࡀ࡞ࡃ㸪㧗࠸⥅ᡭᙉᗘࢆ♧ࡍ㓄⟶⏝ࡢⷧ⫗⟶ᮦ⥅ᡭࢆᚓࡽࢀࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸬
Table 2 Results of tensile test
Tensile strength

Joint effeciency

(MPa)

(%)

1

447

67

Weld interface

2

606

91

Weld interface

3

662

100

Base metal

4

664

100

Base metal

No.

Fractured portion 
Fig.1 Microstructure on cross-section of joint㻌ཧ⪃ᩥ⊩㻌(1) ୍ཎࡽ㸪SUS310S 㗰ⷧ⫗෇⎔ᦶ᧿ᅽ᥋࡟࠾ࡅࡿ⥅ᡭᛶ⬟ࡢᨵၿ㸪⁐᥋Ꮫ఍඲ᅜ኱఍ㅮ₇ᴫせ㸪83㸦2008㸧
㸪108-109㸬
(2) M. Kimura etal, Joint properties and their improvement of AISI 310S austenitic stainless steel thinwalled circular pipe friction welded joint, Materials & Design, 38(2012), 38-46.

㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 131 −

኱Ẽࣉࣛࢬ࣐⁐ᑕἲ࡜ᦶ᧿ᨩᢾ⾲㠃ฎ⌮࡟ࡼࡿࢱࣥࢢࢫࢸࣥ⿵ಟᢏ⾡ࡢ㛤Ⓨᅜ❧◊✲㛤Ⓨἲே ≀㉁࣭ᮦᩱ◊✲ᶵᵓ ᵓ㐀ᮦᩱ◊✲ࢭࣥࢱ࣮
Ώ㑔ㄔࠊⲡ㔝ṇ኱ ⥴ゝ᰾⼥ྜ⅔ࢲ࢖ࣂ࣮ࢱࡢࣉࣛࢬ࣐ᑐྥᮦ࡜ࡋ࡚᭱᭷ຊೃ⿵࡛࠶ࡿࢱࣥࢢࢫࢸࣥ㸦:㸧࡟࠾࠸࡚ࡣࠊࢲ࢖ࣂ࣮ࢱ⇕㈇Ⲵ㸦(/0㸧ࡸࣉࣛࢬ࣐ࢹ࢕ࢫࣛࣉࢩࣙࣥ➼࡟࠾ࡅࡿ⇕ὶ᮰ࡢ✺Ⓨⓗቑ኱ࡸࣉࣛࢬ࣐ࡢ᥋ゐ࡟ࡼࡗ࡚⏕ࡌᚓࡿᒁᡤ⾲㠃⁐⼥࠶ࡿ࠸ࡣ෌⤖ᬗ➼࡟ࡼࡿ๭ࢀࡸᒁᡤⓗ࡞ᑍἲኚ໬➼ࡢᦆ⪖ࡀ⏕ࡌ࠺ࡿࠋࡇࡢࡼ࠺
࡞ᦆ⪖ࡣ㍍ᚤ࡞࡛ࣞ࣋ࣝ࠶ࡗ࡚ࡶᒁᡤⓗ࡞࣮ࣜࢹ࢕ࣥࢢ࢚ࢵࢪ࡜࡞ࡾ࠺ࡿࡓࡵࠊᦆ⪖ຍ㏿࡜ࣉࣛࢬ࣐㐠㌿࡟ᑐࡍࡿᙳ㡪ࡢᣑ኱ࡀᠱᛕࡉࢀࡿࠋࡼࡗ࡚ึᮇẁ㝵ᦆ⪖ࡢ⡆᫆⿵ಟࢆྍ⬟࡜ࡍࡿᢏ⾡ࢆ᭷ࡍࡿࡇ࡜ࡀཎᆺ
⅔ࡢ✌ാ⋡࠾ࡼࡧ⤒῭ᛶ࡟ぢ㏻ࡋࢆᚓࡿୖ࡛㔜せ࡜࡞ࡿࠋ
ࡑࡇ࡛ᮏ◊✲࡛ࡣࠊձ ኱Ẽࣉࣛࢬ࣐⁐ᑕἲ㸦$36㸧࡟ࡼࡿ⫗┒ࠊղ ᦶ᧿ᨩᢾฎ⌮㸦)63㸧࡟ࡼࡿ⫗┒㒊ᙉ໬࡜࠸࠺஧ࡘࡢࣉࣟࢭࢫࢆ⤌ࡳྜࢃࡏࠊ: ⾲㠃ࡢ⿵ಟࢆྍ⬟࡜ࡍࡿせ⣲ᢏ⾡ࡢ㛤Ⓨࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ
⿵ಟᢏ⾡࡜ࡋ࡚ࡑࢀࡒࢀࡢࣉࣟࢭࢫ᭱㐺໬ࢆᅗࡾࡘࡘᢏ⾡ⓗ࡞ㄢ㢟࡟ࡘ࠸࡚᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟ࠊᐇ㝿࡟ࡇࢀࡽࡢࣉࣟࢭࢫࢆ⏝࠸࡚ࠊࢱࣥࢢࢫࢸࣥࡢ⿵ಟᶍᨃࢆヨࡳࡓࠋ ᐇ㦂᪉ἲᅗ  ࡟⿵ಟᶍᨃヨ㦂ࡢᡭ㡰࡟ࡘ࠸࡚ᶍᘧᅗࢆ♧ࡍࠋཎᩱ⢊ᮎ࡜ࡋ࡚ࠊࢱࣥࢢࢫࢸࣥ㸦'ࠊ࢔ࣛ࢖ࢻ࣐
ࢸࣜ࢔ࣝ♫〇㸧ࢆ⏝࠸ࠊᇶᮦ࡟ࡣ ,7(5 ࢢ࣮ࣞࢻࡢࢱࣥࢢࢫࢸࣥᯈ㸦[[PP㸧ࢆ⏝࠸ࡓࠋࡲࡎࠊ
㸦㸯㸧ᇶᮦ∦ഃ⾲㠃㸦[㸦PP㸧㠃㸧ࡢ୰ኸ㒊࡟ᑐࡋࠊ࣮ࣞࢨ↷ᑕ࡟ࡼࡾᦆയࢆᑟධࡋࡓࠋ࣮ࣞࢨ↷ᑕ࡟ࡣࠊ୕ḟඖ✚ᒙ㐀ᙧ⿦⨨㸦6/0ࠊ6/0 ࢯ࣮ࣜࣗࢩࣙࣥࢬ♫㸧ࢆ౑⏝ࡋࠊ࣮ࣞࢨฟຊ :ࠊࢫ࢟ࣕࣥ㏿ᗘPPVࠊࣁࢵࢳᖜ PPࠊࢫ࢟ࣕࣥ㡿ᇦࡣ ┤ᚄ PP ࡢ෇ෆ㒊࡜ࡋࡓࠋḟ࡟ࠊ㸦㸰㸧ᦆയ㒊ࢆᨺ㟁ຍᕤ࡟ࡼࡾࡃࡾᢤࡁຍᕤࢆ⾜ࡗࡓࠋ㝖ཤ㒊ࡢᙧ≧ࡣࠊ෇ᰕ࡛࠶ࡾࠊ┤ᚄ PPࠊ῝ࡉ⣙ PP ࡜ࡋࡓࠋ⥆࠸࡚ࠊ㸦㸱㸧ᦆയ㝖ཤ㒊࡟ᑐࡋࠊ⡆᫆ᆺ࢞ࢫࢩ࣮ࣝࢻࢆྲྀࡾ௜ࡅࡓ $36 ⁐ᑕ㸦7ULSOH[3UR ࢚ࣜࢥ࣓ࣥࢸࢥ♫㸧࡟ࡼࡾࠊࢱࣥࢢࢫࢸࣥࡢ⫗┒᪋ᕤࢆ⾜ࡗࡓࠋ⁐ᑕ᮲௳ࡣࠊࣉࣛࢬ࣐㟁ὶ $ࠊసື࢞ࢫ㸦࢞ࢫὶ㔞㸧 $U
㸦/PLQ㸧ࠊࣀࢬࣝᚄ PPࠊ⁐ᑕ㊥㞳 PPࠊ࢞ࣥ⛣ື㏿ᗘ PPVࠊࣆࢵࢳ PPࠊ⢊ᮎ౪⤥㏿ᗘJPLQ ࢆ㐺⏝ࡋࠊཌࡉ⣙  ࡢࢱࣥࢢࢫࢸࣥࢆሁ✚ࡉࡏࡓࠋࡑࡢᚋࠊࣈࣛࢫࢺฎ⌮࠾ࡼࡧᖹ㠃◊๐࡟ࡼࡾࠊ⫗┒ࡾ㒊⾲㠃ࢆ࠶ࡿ⛬ᗘᖹᆠ࡟ࡋࡓࠋ
㸦㸲㸧సᡂࡋࡓᶍᨃ⿵ಟᮦࡢ⫗┒㒊࡟ࡘ࠸࡚ࠊ)63 ฎ⌮ࢆᐇ᪋ࡋࡓࠋȭPP ࡢ :&&R ࣇࣛࢵࢺࢶ࣮ࣝ㸦ඛ➃㒊࡟ᑠ✺㉳ࡢ࡞࠸ࢶ࣮ࣝ㸧ࢆ⏝࠸࡚ࠊⲴ㔜 Wࠊࢶ࣮ࣝᅇ
㌿㏿ᗘ USPࠊࢶ࣮ࣝഴᩳゅᗘ rࠊࢶ࣮ࣝࢆ⛣ືࡉࡏࡿࡇ࡜࡞ࡃࠊಖᣢ᫬㛫  ⛊࡟࡚ᐇ᪋ࡋࡓࠋ࣮ࣞ
ࢨ࡟ࡼࡿᦆയᑟධࡲࡲᮦࠊ⁐ᑕ⫗┒ࡲࡲᮦࠊ)63 ฎ⌮ᮦ࡟ࡘ࠸࡚ࠊࡑࢀࡒࢀ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾㸦6(0㸧ࡸ⤖ᬗ᪉఩ゎᯒ㸦(%6'㸧ࢆ⏝࠸ࡓ᩿㠃⤌⧊ࡢほᐹࠊࣅࢵ࣮࢝ࢫ◳ࡉࡢ ᐃࢆᐇ᪋ࡋࡓࠋ
 ⤖ᯝ
)LJ ࡟ࡣࠊ)63 ฎ⌮๓ᚋ࡛ࡢ⫗┒ࡾ᪋ᕤ㒊ࡢ᩿㠃⤌⧊ኚ໬ࢆ♧ࡋ࡚࠸ࡿࠋ)63 ๓ࡢ᩿㠃෗┿㸦ගᏛ㢧ᚤ㙾㸧࡛ࡣࠊ⁐ᑕ⫗┒㒊ࡀⓑࡃぢ࠼࡚࠾ࡾࠊᦆയ㝖ཤ㒊࡟ᑐࡋ࡚ࠊ㐺ษ࡟⫗┒ࡾ᪋ᕤࡀ࡞ࡉࢀ࡚࠸ࡿ㸦ീ㸦D㸧㸧ࠋ
)63 ฎ⌮ᚋ࡛ࡣࠊ)63 ࡢⲴ㔜㈇Ⲵ࡟ࡼࡿኚᙧ࠾ࡼࡧຍᕤࢶ࣮ࣝࡢ௜╔ࡀㄆࡵࡽࢀࡿ㸦㸦ീ㸦E㸧㸧㸧ࡀࠊ6(0)LJ6FKHPDWLFVRIUHSDLURIGDPDJHG:SODWHVE\$36DQG)63WHFKQLTXHV− 132 −

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ࡕᐦ໬ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸦ീ FG㸧ࠋ᩿㠃ࡢ⤖ᬗ᪉఩ศᕸᅗࡼࡾࠊ)63 ฎ⌮࡟ࡼࡗ࡚⤖ᬗ⢏ࡀⴭࡋࡃᚤ
⣽໬ࡉࢀ࡚࠸ࡿࡇ࡜㸦ീ HI㸧ࠊࡲࡓ .$0 ീࡼࡾ⿵ಟ㒊ࡢᗈ⠊ᅖ࡟Ώࡗ࡚ࡦࡎࡳࡀ⵳✚ࡋ࡚࠸ࡿࡇ࡜ࡀㄆ
ࡵࡽࢀࡓ㸦ീ JK㸧ࠋ)LJ ࡟ : ᇶᮦࠊ⁐ᑕ⫗┒ࡲࡲᮦࠊ)63 ᮦࡢࣅࢵ࣮࢝ࢫ◳ࡉࢆ♧ࡍࠋ⁐ᑕ⫗┒ࡲࡲࡢ≧ែ࡛ࡣࠊᇶᮦ࡟ᑐࡋ◳ࡉࡀ༙ศ௨ୗ࡟పୗࡋ࡚࠸ࡓࡀࠊ)63 㒊࡛ࡣᇶᮦ࡟ᑐࡋ 㹼 ಸࠊ⁐ᑕ㒊࡟ᑐࡋ࡚ࡣ⣙  ಸࡢ◳ࡉྥୖࢆ♧ࡋࡓࠋ)63 ࡟ࡼࡿᦆയ㒊ᙉ໬ࡢ᭷⏝ᛶࡀ♧ࡉࢀࡓ࡜ゝ࠼ࡿࠋ ⤖ㄽ
ࢱࣥࢢࢫࢸࣥ⾲㠃ࡢ⿵ಟᢏ⾡ࡢ㛤Ⓨࢆ┠ⓗ࡜ࡋ࡚ࠊ$36 ࡟ࡼࡿ⫗┒࡜ )63 ࡟ࡼࡿᙉ໬ࢆ⤌ࡳྜࢃࡏࡓ⿵
ಟᢏ⾡ࡢ᳨ウࢆ⾜ࡗࡓࠋ⿵ಟᶍᨃ㒊ࡣඖࡢᇶᮦࢆ㉸࠼ࡿ◳ࡉࢆ♧ࡋࠊᮏᡭἲࡢ᭷ຠᛶࡀ♧ࡉࢀࡓࠋ
ᮏ◊✲ࡣ᰾⼥ྜ◊✲ᡤ ཎᆺ⅔◊✲㛤Ⓨඹྠ◊✲㸦1,)6+'$)㸧ࡢᨭ᥼ࢆཷࡅࡓࠋࡲࡓࠊᮏ◊✲ࡢ୍㒊ࡣ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤࠕ᥋ྜ⛉Ꮫඹྠ฼⏝࣭ඹྠ◊✲ᣐⅬࠖඹྠ◊✲ဨไᗘࢆ฼⏝ࡋ࡚ᐇ᪋ࡉࢀࡓࠋ
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⏺㠃ᶵᵓᏛศ㔝㸧− 133 −ȕ)H6L6L ࢥ࣏ࣥࢪࢵࢺᮦᩱࡢ⇕㟁≉ᛶ࡟ཬࡰࡍ 3 ῧຍࡢᙳ㡪⚟஭ᕤᴗ኱Ꮫ ᕤᏛ㒊 ᶵᲔᕤᏛ⛉஭⸨ ᖿኵ
㸯㸬┠ⓗ
ȕ)H6L ⣔⇕㟁ኚ᥮ᮦᩱࡣ㸪ཎᩱࡀ㇏ᐩ࡛Ᏻ౯㸪⪏㓟໬ᛶ࡟ඃࢀ኱Ẽ୰࡛ࡢ౑⏝ࡀྍ⬟㸪ẘᛶඖ⣲ࢆ⏝࠸࡞࠸㸪SQ ᥋ྜࡀᐜ᫆㸪࡞࡝ከࡃࡢᐇ⏝ୖࡢ฼Ⅼࢆ᭷ࡋ࡚࠾ࡾ㸪ࡑࡢᐇ⏝໬ࡀᙉࡃᮃࡲࢀ࡚࠸ࡿ㸬ᡃࠎࡣᚑ᮶࠿ࡽ㸪ȕ)H6L ⣔༢┦ヨᩱࢆᑐ㇟࡜ࡋࡓ◊✲ࡢ࡯࠿࡟㸪Į)H6L ┦࠿ࡽࡢඹᯒศゎࢆ฼⏝ࡋࡓ ȕ)H6L6L ࢥ࣏ࣥࢪࢵࢺᮦᩱࡢ㛤Ⓨࢆ⾜ࡗ࡚ࡁࡓ㸬㧗┦࡛࠶ࡿ Į)H6L ┦ࢆ . ࡛ࡢ⇕ฎ⌮࡟ࡼࡾ ȕ ┦࡜ 6L ┦࡟ඹᯒศゎࡉࡏࡿࡇ࡜࡟ࡼࡾ㸪ȕ ┦࣐ࢺࣜࢵࢡࢫ୰࡟ 6L ┦ࡀᚤ⣽⢏Ꮚ࡜ࡋ࡚ᯒฟࡍࡿ㸬6L ┦ࡢᚤ⣽ศᩓ໬࡟ࡼࡾ≉࡟㧗ᇦ࡛⇕ఏᑟ⋡ࡢపῶࡀྍ⬟࡜࡞ࡾ㸪ȕ)H6L ⣔༢┦ヨᩱ࡟ẚ㍑ࡋ࡚㧗ᛶ⬟໬࡛ࡁࡿࡇ࡜ࢆሗ࿌ࡋ࡚ࡁࡓ㸬୍᪉㸪ᚤ⣽ศᩓ┦࡛࠶ࡿ 6L ┦⮬యࡣ㟁Ẽ᢬ᢠ⋡ࡀẚ㍑ⓗ኱ࡁ࠸≀㉁࡛࠶ࡾ㸪ࡇࡢࡇ࡜ࡀᮏࢥ࣏ࣥࢪࢵࢺᮦᩱࡢ⇕㟁≉ᛶ࡟ࡣ୙฼࡟ാ࠸࡚࠸ࡿࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪6L ┦ࡢ㟁Ẽ᢬ᢠ⋡ࢆపῶࡉࡏࡿࡇ࡜࡟ࡼ
ࡿ㸪ࢥ࣏ࣥࢪࢵࢺᮦࡢࡉࡽ࡞ࡿ㧗ᛶ⬟໬ࢆ┠ᣦࡋ㸪6L ┦࡟ 3 ࢆࢻ࣮ࣆࣥࢢࡍࡿࡇ࡜ࢆヨࡳࡓ㸬3 ࢻ࣮ࣉ࡟ࡼ
ࡿ㸪ࢥ࣏ࣥࢪࢵࢺᮦᩱࡢ┦ᙧᡂࡸᚤ⣽⤌⧊㸪㟁Ẽ≉ᛶ࣭⇕≉ᛶ࡞࡝⇕㟁ᛶ⬟࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚ㄪᰝࡋ㸪ᮏᡭἲࡢ ȕ)H6L6L ࢥ࣏ࣥࢪࢵࢺᮦᩱ࡟࠾ࡅࡿ㧗ᛶ⬟໬ᡭἲ࡜ࡋ࡚ࡢྍ⬟ᛶ࡟ࡘ࠸᳨࡚ウࡋࡓ㸬㸰㸬◊✲᪉ἲ
ȕ)H6L ⣔⢊ᮎ࡟ࡣ㸪Q ᆺ࡜ࡋ୍࡚⯡࡟ከࡃ⏝࠸ࡽࢀࡿ &R ࢻ࣮ࣉ㸦)H&R6L㸧ࡢࡶࡢࢆ౑⏝ࡋࡓ㸬ヨᩱࡢ⤌ᡂࡣ )H6L[&R3[ ;     ࡜ࡋࡓ㸬ࡇࢀࡽ  ࡘࡢ ; ࡢ್ࡣ 3 ࡢ㓄ྜࡀศᩓ 6L ┦ࡢ 6L
㔞࡟ᑐࡋ㸪ࡑࢀࡒࢀ 㸪㸪㸪DW࡜࡞ࡿࡼ࠺࡞⤌ᡂ࡟ᑐᛂࡋ࡚࠸ࡿ㸬
ࡲࡎᕷ㈍ࡢ )H㸪6L㸪&R㸪3 ⢊ᮎࢆୖグࡢẚ࡟࡞ࡿࡼ࠺ΰྜࡋ㸪ࢫࢸࣥࣞࢫ〇ࡢ࣏ࢵࢺ࠾ࡼࡧ࣮࣎ࣝࢆ⏝࠸࡚㐟ᫍᆺ࣮࣑࣎ࣝࣝ࡟ࡼࡾ USP㸪 ᫬㛫࣓࢝ࢽ࣑࢝ࣝࣜࣥࢢฎ⌮ࡋࡓ⢊ᮎࢆ 636 ↝⤖ฎ⌮࡟౪ࡋࡓ㸬↝⤖᫬ࡢ༳ຍᅽຊࡣ 03D㸪᪼㏿ᗘࡣ ႏPLQ㸪┿✵㞺ᅖẼ࡟࡚ Υ㸪PLQ ↝⤖ฎ⌮ࢆ⾜࠸㸪Į)H6L ┦࠿ࡽ࡞ࡿ↝⤖యࢆస〇ࡋࡓ㸬ࡑࡢᚋ↝⤖యࢆ Υ࡟࡚  ᫬㛫ࡢ⇕ฎ⌮ࢆ⾜࠸㸪ඹᯒศゎ࡟ࡼࡾ ȕ)H6L6L ࢥ࣏ࣥࢪࢵࢺᮦᩱࢆᚓࡓ㸬ࡇࢀࡽᚓࡽࢀࡓ↝⤖య࡟ᑐࡋ㸪;5' ࡟ࡼࡿ┦ྠᐃ㸪6(0 ࡟ࡼࡿᚤ⣽⤌⧊ほᐹ࠾ࡼࡧࢮ࣮࣋ࢵࢡಀᩘ㸪㟁Ẽ᢬ᢠ⋡㸪⇕ఏᑟ⋡࡞࡝ࡢ⇕㟁≉ᛶࢆホ౯ࡋࡓ㸬㸱㸬⤖ᯝ
⇕ฎ⌮ᚋࡢ↝⤖య࡟ᑐࡋ ;5'ᐃࢆ⾜ࡗࡓ㸬⇕ฎ⌮ᚋࡣࡍ࡭࡚ࡢࢧࣥࣉࣝ࡟࠾࠸࡚ඹᯒ཯ᛂ࡟ࡼࡾ⏕ࡌࡓ ȕ)H6L6L ࢥ࣏ࣥࢪࢵࢺ┦࠿ࡽ࡞ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬↝⤖ᚋ࡜ࡣ␗࡞ࡾ㸪⇕ฎ⌮ᚋࡢࢥ࣏ࣥࢪࢵࢺ┦࡟ࡣ 3ῧຍ㔞ࡢ㐪࠸࡟ࡼࡿ ;5' ࣆ࣮ࢡࡢᕪ␗ࡣࡳࡽࢀࡎ㸪ῧຍࡋࡓ 3 ࡣᴫࡡ᝿ᐃ㏻ࡾ࡟ 6L ┦࡬ࢻ࣮ࣉࡉࢀࡓࡶࡢ
࡜ᛮࢃࢀࡿ㸬⇕ฎ⌮ᚋࡢྛヨᩱࡢᚤ⣽⤌⧊ࢆ 6(0 ࡟ࡼࡾほᐹࡋࡓ⤖ᯝࢆᅗ  ࡟♧ࡍ㸬3 ↓ῧຍࡢヨᩱ D ࡛ࡣ㸪ⷧ࠸⅊Ⰽࡢ ȕ)H6L ┦࣐ࢺࣜࢵࢡࢫ୰࡟⃰࠸⅊Ⰽࡢ 6L ┦ࡀᆒ୍࡟ศᩓࡋ࡚࠸ࡿᵝᏊࡀศ࠿ࡿ㸬6L ᚤ⢏Ꮚࡢ኱ࡁࡉࡣ⣙ QP ࡛࠶ࡗࡓ㸬୍᪉㸪3 ࢻ࣮ࣉ㔞ࡢቑຍ࡟క࠸㸪ᯒฟ 6L ┦ࡢࢧ࢖ࢬࡣᚎࠎ࡟⢒኱໬ࡍࡿᵝᏊࡀほᐹࡉࢀ㸪௒ᅇ᭱ࡶ 3 㔞ࡢከ࠸ E ;㸻 ࡢヨᩱ࡛ࡣ㸪ᅗ࡟♧ࡉࢀࡿࡼ࠺࡟ QP ⛬ᗘࡢ 6L ⢏Ꮚࡀᯒฟࡋ࡚࠸ࡿᵝᏊࡀศ࠿ࡿ㸬3 ῧຍ࡟ࡼࡾ 6L ᯒฟ┦ࡀ⢒኱໬ࡍࡿཎᅉ࡟ࡘ࠸࡚ࡣ 3 ࡢᅛ⁐࡟ࡼࡾ 6L ┦ȕ ࣐ࢺࣜࢵࢡࢫ┦㛫ࡢ⏺㠃࢚ࢿࣝࢠ࣮ࡢኚ໬࡞࡝ࡀ⪃࠼ࡽࢀ࡚࠸ࡿࡀヲ⣽࡟ࡘ࠸࡚ࡣ⌧ᅾࡢ࡜ࡇࢁ᫂ࡽ࠿࡟࡞ࡗ࡚

− 134 −ᅗ  D 3 ↓ῧຍ࠾ࡼࡧ E ;㸻㸦6L ┦࡟ᑐࡋ
DW3 ῧຍ㸧ヨᩱࡢ⇕ฎ⌮ᚋࡢ 6(0 ෗┿㸬࠸࡞࠸㸬('; ศᯒ࡟ࡼࡾ㸪ῧຍࡋࡓ 3 ࡣᴫࡡ ȕ ┦࣐ࢺࣜࢵࢡࢫ࡛ࡣ࡞ࡃᯒฟ 6L ┦୰࡟ศᕸࡋ࡚࠸ࡿࡇ࡜
ࡀศ࠿ࡾ㸪ࡇࢀࡣ ;5' ࡢ⤖ᯝ࡜ࡶ୍⮴ࡋ࡚࠸ࡿ㸬ᅗ  3 ࢻ࣮ࣉ ȕ)H6L6L ࢥ࣏ࣥࢪࢵࢺᮦᩱࡢ D 㟁Ẽᚓࡽࢀࡓྛヨᩱࡢ⇕㟁≉ᛶࢆホ౯ࡋࡓ㸬㟁Ẽ᢬ᢠ᢬ᢠ⋡࠾ࡼࡧ E ↓ḟඖᛶ⬟ᣦᩘࡢẚ㍑㸬⋡ࡣᅗ  D ࡟♧ࡉࢀࡿࡼ࠺࡟㸪ᙜึࡢ≺࠸㏻ࡾ 3 ࢻ࣮ࣉ࡟ࡼࡾⴭࡋࡃపῶ࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬୍᪉ࢮ࣮࣋ࢵࢡᩚᩘࡣ㟁Ẽ᢬ᢠ⋡ࡢపῶ࡟ᑐᛂࡋ࡚ῶᑡࡋࡓ㸬⇕ఏᑟ⋡࡟ࡘ࠸࡚ࡣ ;㸻 ࡲ࡛ῶᑡࡋࡓࡶࡢࡢ㸪;㸻 ࡛ࡣୖ᪼࡟㌿ࡌࡓ㸬ࡇࢀࡣ 6L ┦࡬ࡢ 3 ῧຍ࡟ࡼࡾῶᑡࡍࡿຠᯝ࡜㸪3 ῧຍ࡟ࡼࡿ 6L ┦⢒኱໬ࡢᙳ㡪ࡢࣂࣛࣥࢫ࡟ࡼࡿࡶࡢ࡜ᛮࢃࢀࡿ㸬ࡇࢀࡽࡢ⤖ᯝ࠿ࡽ⟬ฟࡋࡓ↓ḟඖᛶ⬟ᣦᩘࡣᅗ  E ࡟♧ࡉࢀࡿࡼ࠺࡟ ;㸻࡛ 3 ↓ῧຍࢆ኱ࡁࡃୖᅇࡾ㸪6L ┦࡬ࡢ 3 ࢻ࣮ࣉࡀ⇕㟁≉ᛶྥୖ࡟᭷ຠ࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬㸲㸬⤖ㄽᮏ◊✲࡛ࡣඹᯒኚែ࡟ࡼࡾస〇ࡋࡓ ȕ)H6L6L ࢥ࣏ࣥࢪࢵࢺᮦᩱࡢ⇕㟁≉ᛶ࡟ཬࡰࡍ 3 ࢻ࣮ࣉࡢຠᯝࢆㄪ
ᰝࡋࡓ㸬ῧຍࡋࡓ 3 ࡣ࡯ࡰᯒฟ 6L ┦࡬ᅛ⁐ࡋ࡚࠾ࡾ㸪ࡑࡢ⤖ᯝ࡜ࡋ࡚ࢥ࣏ࣥࢪࢵࢺᮦࡢ㟁Ẽ᢬ᢠ⋡ࢆ኱ࡁࡃపῶ࡛ࡁࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬⇕㟁ᑟ⋡࡟ࡘ࠸࡚ࡣ 3 ᅛ⁐ࡢຠᯝ࠾ࡼࡧ 6L ┦ࡢ⢒኱໬ࡢࣂࣛࣥࢫ࡟ࡼࡾ
᭱㐺⃰ᗘࡀᏑᅾࡍࡿ࡜⪃࠼ࡽࢀ㸪ᮏ◊✲࡛ࡣ 6L ┦࡟ᑐࡋ DW๓ᚋ࡛࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬௒ᅇࡢ⤖ᯝࡣ Q
ᆺࡢࢥ࣏ࣥࢪࢵࢺᮦᩱࢆᑐ㇟࡟ᚓࡽࢀࡓࡶࡢ࡛࠶ࡿࡀ㸪S ᆺ࡟ᑐࡋ࡚ࡶ % ࢻ࣮ࣉ࡞࡝࡟ࡼࡾྠᵝࡢຠᯝࡀᮇ
ᚅ࡛ࡁࡿࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧− 135 −

⣧ࢳࢱࣥ /3%) ᮦࡢ✚ᒙ᪉ྥ࡟ᑐࡍࡿෆ㒊ẼᏍࡢ࿘ᮇゎᯒ஑ᕞ኱Ꮫ኱Ꮫ㝔 ᕤᏛᗓ ᮦᩱᕤᏛᑓᨷ༤ኈㄢ⛬㔜⏣ 㞝஧  ᕤᏛ◊✲㝔ᮦᩱᕤᏛ㒊㛛 ᑿ㷂⏤⣖Ꮚ                ኱㜰኱Ꮫ ᥋ྜ⛉Ꮫ◊✲ᡤ 」ྜ໬ᶵᵓᏛศ㔝 ㏆⸨຾⩏ ┠ⓗ⢊ᮎᗋ⁐⼥✚ᒙ㐀ᙧἲ㸦3%)㸧࡛స〇ࡉࢀࡓᮦᩱࡣ⁐⼥㒊㏆ഐ࡟⏕ࡌࡿ࣐࢖ࢡࣟ࣎࢖ࢻࡸᮍ⁐⼥㒊ࡢẼᏍ➼ࡢᵓ㐀Ḟ㝗ࡀᙉᗘపୗࡢせᅉ࡜࡞ࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿ>@๓ሗ࡛ࡣ㐀ᙧ᮲௳ࡀ␗࡞ࡿ࣮ࣞࢨ࣮
ࢆ⏝࠸ࡓ /3%) ἲ࡟ࡼࡗ࡚స〇ࡋࡓ⣧ࢳࢱࣥ✚ᒙ㐀ᙧᮦ࡟ࡘ࠸࡚ᘬᙇᙉࡉࡢᨭ㓄ᅉᏊࢆゎᯒࡋ㸪᭱኱ẼᏍᚄ࡜㈇ࡢ┦㛵ࡀ࠶ࡾ㸪⢊యࢆฟⓎཎᩱ࡜ࡍࡿ࡟ࡶ࠿࠿ࢃࡽࡎ㸪ᘬᙇᙉࡉ࡜ẼᏍ⋡㈇ࡢ┦㛵ࢆ♧ࡍᚑ᮶ࡢ↝⤖ᮦᩱ࡜ࡣ␗࡞ࡿ⤖ᯝ࡛࠶ࡿࡇ࡜ࢆሗ࿌ࡋࡓ>@㸬ᮏ◊✲࡛ࡣ㸪ẼᏍ⋡ࡢᒁᡤศᕸ࡟╔┠ࡍࡿࡇ࡜࡟ࡼࡗ࡚㸪᭱኱ẼᏍᚄࡀᘬᙇᙉࡉࢆᨭ㓄ࡍࡿ࣓࢝ࢽࢬ࣒ࢆゎᯒࡋࡓ㸬 ◊✲᪉ἲ ᕷ㈍ࡢ⣧ 7L ࣉࣛࢬ࣐࢔
ࢺ࣐࢖ࢬ⢊ᮎࢆ⏝࠸ࡓ 㐀ᙧ᮲௳ࡣ7DEOH ࡟♧
ࡍ㏻ࡾ㸪ࣅ࣮࣒ࣁࢵࢳࣥࢢ
㛫㝸ࢆ  ȣP ୍ᐃ࡜ࡋ㸪⢊ᮎ✚ᒙཌ㸪࣮ࣞࢨ࣮ࣃ࣮࣡ ࢫ࢟ࣕࣥࢫࣆ࣮ࢻࢆኚ࠼ࡓ  ᮲௳࡛ヨసࡋࡓ㸬㐀ᙧᮦࡢ┦ᑐᐦᗘࡶ⾲୰࡟ేグࡋࡓ㸬┦ᑐᐦᗘ᭱኱
࡜࡞ࡿ࢚ࢿࣝࢠ࣮ᐦᗘ㡿ᇦࢆ =RQH ϩ㸪ࡑࢀࡼࡾప
࠸㡿ᇦࢆ =RQHϨ㸪㧗࠸㡿ᇦࢆ =RQHϪ࡜ࡋ࡚༊ูࡋࡓ㸬㛗ᡭ᪉ྥࡀ✚ᒙ᪉ྥ࡜࡞ࡿࡼ࠺㸪ᖹ⾜㒊㛗ࡉ PPᖜ PPཌࡉ PP඲㛗PP ࡢᖹᯈᘬᙇヨ㦂∦ᙧ≧࡟㐀ᙧᮦࢆᨺ㟁ຍᕤࡋࡓ㸬63ULQJ㸦%/%㸧࡟࠾࠸࡚ NH9 ࡢ㧗㍤ᗘ ; ⥺ࢆ⏝࠸࡚㐀ᙧᮦᖹ⾜㒊඲య࡟ࡘ࠸࡚Ḟ㝗ศᕸࡢ '&7 ീࢆ᧜ീࡋࡓ㸬ᚓࡽࢀࡓẼᏍീࢆ⏬ീゎᯒࢯࣇࢺ㸦7KHUPR
6FLHQWLILF$YL]R'3UR㸧࡟ࡼࡗ࡚ゎᯒࡋ㸪㔜ᚰᗙᶆ㸪య✚┦ᙜ⌫ᚄ㸪ẼᏍ⋡ࢆồࡵࡓ㸬ࡉࡽ࡟㸪ᖹ⾜㒊୰ኸࡢ࠾ࡼࡑ  ȣP ࡢ㡿ᇦࡢ &7 ീࢆᘬᙇ᪉ྥ࡟ᆶ┤࡟  ➼ศࡋ㸪ࢫࣛ࢖ࢫീẖࡢᒁᡤẼᏍ⋡࠾ࡼࡧẼᏍᚄศᕸࢆ ᐃࡋࡓ㸬ࡲࡓ㸪ᘬᙇヨ㦂ࡣࡦࡎࡳ㏿ᗘ V ࡛⾜ࡗࡓ㸬 ◊✲⤖ᯝ࠾ࡼࡧ⪃ᐹ࠙ᘬᙇᙉࡉࡢᨭ㓄ᅉᏊࠚヨᩱࡢẼᏍ⋡㸪ᖹᆒẼᏍᚄ࠾ࡼࡧ᭱኱ẼᏍᚄ࡜ᘬᙇᙉࡉࡢ༢┦㛵ゎᯒࢆ⾜࠸㸪᭱኱ẼᏍᚄ࡜ࡢ㛫࡟ᙉ࠸㈇ࡢ┦㛵ࢆ☜ㄆࡋࡓ㸬࠙✚ᒙ᪉ྥ࡟ἢࡗࡓᒁᡤẼᏍ⋡ศᕸࠚ)LJV D  F ࡣ㸪඘ሸཌࡉ ȣP ୍ᐃ࡛࢚ࢿࣝࢠ࣮ᐦᗘࡢ␗࡞ࡿヨᩱ  =RQHϨ 㸪 =RQHϩ࠾ࡼࡧ  =RQH Ϫ ࡢ✚ᒙ᪉ྥ࡟ἢࡗࡓᒁᡤ඘ሸᐦᗘࢆࡑࢀࡒࢀ♧ࡍ㸬࠸ࡎࢀࡶ㸪୍ᐃࡢᖜ࡛ᒁᡤẼᏍ⋡ࡀ᣺ືࡋ㸪┦ᑐᐦᗘࡀ᭱኱࡜࡞ࡗࡓ  ࡛᣺ᖜ࠾ࡼࡧࡑࡢ୰ኸ್ࡀప࠿ࡗࡓ㸬ࡇࡢ᣺ືࡣ࿘ᮇⓗ࡞⢊యࡢ✚− 136 −

ᒙǦ⁐⼥Ǧจᅛࡢ⧞ࡾ㏉ࡋ࡛ᙧᡂࡉࢀ
ࡓࡶࡢ࡜᥎

ࡉࢀ

ࡿ㸬
࠙ᒁᡤẼᏍ⋡࡜ࢫࣛ࢖ࢫᒙෆ᭱኱ẼᏍᚄࡢ㛵ಀࠚ )LJV D 
 F ࡟ࡘ࠸࡚㸪ྛࢫࣛ࢖ࢫᒙෆࡢẼᏍᚄศᕸࢆồࡵ㸪ࢫࣛ࢖ࢫᒙࡢᒁᡤ
ẼᏍ⋡࡜ᒙෆ᭱኱
ẼᏍᚄࡢ㛵ಀࢆ
)LJ ࡟♧ࡍ㸬=RQHϨ࠾ࡼࡧϩ࡛ࡢ㐀ᙧᮦࡢᒁᡤẼᏍ⋡ࡣ㸪ᚑ᮶ࡢ↝⤖ᮦᩱྠᵝ㸪ᒙෆ᭱኱ẼᏍᚄ࡜࡯ࡰẚ౛㛵ಀ࡟࠶ࡗࡓ㸬㉥࡛♧ࡋࡓࣉࣟࢵࢺࡣ㸪ヨᩱෆ඲ẼᏍࡢ୰࡛ࡢ᭱
኱ẼᏍࢆ♧ࡍ㸬ẼᏍ࿘㎶ࡀᮍ⁐⼥࡜࡞ࡿ =RQHϨ࠾ࡼࡧϩ࡛ࡣ⢊యࡢ඘ሸᵓ㐀ࡀṧᏑࡍࡿࡓࡵ㸪ᚑ᮶ࡢ↝⤖ᮦ࡟㢮ఝࡋࡓẼᏍᙧែ࡛࠶ࡿ
ࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬ࡲࡓ㸪ヨᩱෆ᭱኱ẼᏍࡣẼᏍ⋡᭱኱㸦ᐦᗘ᭱ᑠ㸧ࡢᒙෆ࡟Ꮡᅾࡍࡿࡇ࡜ࡀ
☜ㄆࡉࢀࡓ㸬୍᪉㸪⁐⼥ụෆࡢẼἻ࡟㉳ᅉࡍࡿṧ␃ẼᏍࡀᏑᅾࡍࡿ  Ϫ࡛ࡣᒙෆ᭱኱ẼᏍᚄ࡜ᒁᡤẼᏍ⋡ࡢ㛫࡟ẚ౛㛵ಀࡣぢࡽࢀࡎ㸪↝⤖య࡜ࡣ␗࡞ࡿẼᏍᙧែࢆ཯ᫎࡍࡿ⤖ᯝ࡜࡞ࡗࡓ㸬 ⤖ㄽ
7L/3%) ᮦ୰ࡢ ' ᵓ㐀㐀Ḟ㝗ࢆ ; ⥺ &7 ࡟ࡼࡗ࡚ྍど໬ࡋ㸪✚ᒙ᪉ྥ࡬ࡢᒁᡤẼᏍ⋡ศᕸࢆㄪᰝࡋ㸪ࡉࡽ࡟㸪ྛᒙෆࡢẼᏍᚄศᕸࢆ ᐃࡋࡓ㸬ࡑࡢ⤖ᯝ㸪౪ヨᮦࡢ኱ከᩘࢆ㛢ࡵࡿ =RQHϨ࠾ࡼࡧϩࡢ㐀ᙧᮦ࡛ࡣ㸪᭱኱ẼᏍࡣ᭱పᐦᗘᒙ࡟Ꮡᅾࡍࡿࡇ࡜࠿ࡽ㸪᭱኱ẼᏍᚄ࡜ᘬᙇᙉࡉࡢ㈇ࡢ┦㛵ࡣ␲┦㛵࡛࠶ࡾ㸪ᚑ᮶ࡢ↝⤖ᮦ࡜ྠᵝ㸪᭱ᑠᒁᡤᐦᗘ࡜㈇ࡢ┦㛵ࡀ࠶ࡿࡶࡢ࡜ࡳ࡞ࡉࢀࡓ㸬ཧ⪃ᩥ⊩>@(/LYHUDQL HWDO㸸-0DWHULDO3URFHVVLQJ7HFKQRORJ\  
>@+*DODUUDJDHWDO㸸$GGLWLYH0DQXIDFWXULQJ  
>@㔜⏣㞝஧㸪ᑿ㷂⏤⣖Ꮚ㸸኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ ᖹᡂ㸱ᖺᗘඹྠ◊✲ဨሗ࿌᭩㸬>@<6KLJHWDHWDO㸸,6,-,QWHUQDWLRQDO  
㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧− 137 −

ࣂ࢖࢜ࢩࣜ࢝Ⰽ⣲」ྜయࡢ๰〇࡜ṑ⛉་⒪࡬ࡢᛂ⏝໭ᾏ㐨኱Ꮫ⑓㝔ṑ࿘⑓⛉  㸪㛵す኱Ꮫ໬Ꮫ⏕࿨ᕤᏛ㒊  㸪໭ᾏ㐨኱Ꮫ኱Ꮫ㝔ṑᏛ◊✲㝔  㔠ᮏభ⏕ᐇ 㸪࣐ࣥࣖࢗ࢔࣭ࣥࢽࢳࣕࣖࢼࣥ  ᕝ㷂ⱥஓ  㸪ᐑ἞⿱ྐ  ┠ ⓗṑ࿘⑓ࡣ᪥ᮏ࡟࠾࠸࡚ᡂேࡢ  ๭௨ୖࡀ⨯ᝈࡋ࡚࠸ࡿ୍኱
⑌ᝈ࡛࠶ࡾࠊࡑࡢ㔜せ࡞ཎᅉࡢ୍ࡘ࡜ࡋ࡚ᢠ⳦⸆࡟ᑐࡍࡿ
⪏ᛶࡸ࢔ࣞࣝࢠ࣮ࡢၥ㢟ࡀ࠶ࡿࠋࡇࡢࡼ࠺࡞⫼ᬒ࠿ࡽࠊ᪂
ࡓ࡞἞⒪ἲ࡜ࡋ࡚ὀ┠ࢆ㞟ࡵ࡚࠸ࡿࡢࡀࠕග⥺ຊᏛ⒪ἲ
㸦3'7㸧࡛ࠖ࠶ࡿࠋ3'7 ࡣ≉ᐃࡢගឤ཰๣࡟ගࢆ↷ᑕࡍࡿࡇ࡜
࡛ࠊάᛶ㓟⣲ࢆⓎ⏕ࡉࡏࠊࡇࢀࡀᙉຊ࡞㓟໬స⏝࡛⣽⳦ࢆẅ⳦ࡍࡿ᪉ἲ࡛࠶ࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊᚑ᮶ࡢ᭷ᶵගឤ཰๣
ࡣගᏳᐃᛶࡀప࠿ࡗࡓࡾࠊ㧗࠸ẘᛶࢆᣢࡗ࡚࠸ࡓࡾ࡜࠸ࡗ
ࡓḞⅬࡀ࠶ࡗࡓࠋࡑࡢࡓࡵࠊࡼࡾᏳ඲࡛ຠᯝⓗ࡞௦᭰≀㉁ᅗ  ṑ࿘⑓࡟࠾ࡅࡿ 3'7 ࡢᴫᛕᅗ

ࡢ㛤Ⓨࡀồࡵࡽࢀ࡚࠸ࡿࠋࡑࡢ୍ࡘࡢゎỴ⟇࡜ࡋ࡚ࠊᡃࠎ
ࡣࠊ✄సࡢ๪⏘≀࡛࠶ࡿࡶࡳẆ࠿ࡽ⏕ᡂࡉࢀࡿࣂ࢖࢜ࢩࣜ࢝࡟╔┠ࡋ࡚࠸ࡿࠋࡇࡢࣂ࢖࢜ࢩࣜ࢝ࡣከᏍ㉁࡛࠶ࡾࠊ
⏕యᏳ඲ᛶࡀ㧗ࡃࠊ≀㉁ࡢ྾╔⬟ࡀඃࢀ࡚࠸ࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋᡃࠎࡣࠊ㣗⏝Ⰽ⣲࡜ࡋ࡚ࡶᏳ඲ᛶࡀㄆࡵࡽ
ࢀ࡚࠸ࡿ࣮ࣟࢬ࣋ࣥ࢞ࣝࢆࣂ࢖࢜ࢩࣜ࢝࡟⤌ࡳ㎸ࡴࡇ࡜࡛ࠊ5%3(,#%6 」ྜయࢆㄪ〇ࡋࡓࠋࡇࡢ」ྜయࡣࠊⓑⰍ /('ࡢྍどග↷ᑕୗ࡛࣮ࣟࢬ࣋ࣥ࢞ࣝ༢⊂ࡼࡾࡶ㧗࠸{2΃⏕ᡂ⬟ࢆ♧ࡋࠊ᭷ᶵⰍ⣲ࡢ㓟໬ศゎ⬟ࢆྥୖࡉࡏࡿࡇ࡜ࡀ☜ㄆࡋࡓࠋࡑࡋ࡚ࠊ௒ᖺᗘࡣࡇࡢ 5%3(,#%6 」ྜయࡢᢠ⳦⬟࡟↔Ⅼࢆᙜ࡚࡚ホ౯ࢆ⾜ࡗࡓ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ ᐇ㦂 ࡶࡳẆ⏤᮶ࢩࣜ࢝ ࣂ࢖࢜ࢩࣜ࢝ ࡢㄪ〇ࡶࡳẆ⣙ J ࢆ ZWࢡ࢚ࣥ㓟Ỉ⁐ᾮ P/ ࡟ Υ㸪୍᫬㛫ᾐₕࡋࡓ㸬㓟ᾐₕࡋࡓࡶࡳẆࢆὙίࡋ㸪࣐ࢵ
ࣇࣝ⅔࡛ Υ㸪୍᫬㛫஝⇱ࡉࡏࡓᚋ㸪ྠ⅔࡛ Υ ศ㛫⇞↝ࡉࡏ㸪ࣂ࢖࢜ࢩࣜ࢝ %6 ࢆᚓࡓ㸬  ࣏࢚ࣜࢳࣞࣥ࢖࣑ࣥ 3(, ಟ㣭࡟ࡼࡿࣂ࢖࢜ࢩࣜ࢝ࡢ࢝ࢳ࢜ࣥ໬
ࣂ࢖࢜ࢩࣜ࢝࡬ࡢ 5% ࡢ⤖ྜࢆಁ㐍ࡍࡿࡓࡵ㸪࣏࢚ࣜࢳࣞࣥ࢖࣑ࣥ 3(, ࢆ⏝࠸ࡓࣂ࢖࢜ࢩࣜ࢝ࡢ࢝ࢳ࢜ࣥ
໬ࢆ⾜ࡗࡓ㸬3(,J㸪࣓ࢱࣀ࣮ࣝ P/ ࢆࣅ࣮࣮࢝࡟ධࢀ㸪USP ࡛  ศ᧠ᢾࡋ㸪ࣂ࢖࢜ࢩࣜ࢝ J㸪࣓ࢱࣀ࣮ࣝ  P/ ࢆຍ࠼  USP ࡛⤊ኪ᧠ᢾࡋࡓ ⏕ᡂ≀ࢆὙί㸪ῶᅽ஝⇱ࡉࡏ 3(, ಟ㣭ࣂ࢖࢜ࢩࣜ࢝
3(,#%6 ࢆᚓࡓ
3(, ಟ㣭ࣂ࢖࢜ࢩࣜ࢝5% 」ྜయࡢྜᡂ
3(,#%6PJ ࢆ㸪3(,SRO\PHUXQLW㸦0Zࠥ㸧࡟ᑐࡍࡿ 5% ࡢࣔࣝẚ ;5%3(, ࡀ ;5%3(, ࠊࠊ࠾ࡼ
ࡧ࡜࡞ࡿࡼ࠺࡟ㄪ〇ࡋࡓᵝࠎ࡞⃰ᗘࡢ5%⁐ᾮ P/ ࡟ຍ࠼USP୍࡛᫬㛫᧠ᢾࡋࡓ㸬⏕ᡂ≀ࢆὙίࡋ㸪ῶᅽ஝⇱ࡉࡏ 3(, ಟ㣭ࣂ࢖࢜ࢩࣜ࢝5% 」ྜయ 5%3(,#%6 ࢆᚓࡓ ᢠ⳦⬟ホ౯
6WUHSWRFRFFXVPXWDQV 7&& ࡢᠱ⃮ᾮ࡟ 5%3(,#%6 PJP/ ࢆศᩓࡉࡏ㸪ZHOO ࣉ࣮ࣞࢺ࡟ศὀࡋ
ࡓ㸬ᇵ㣴๓࡟㸪ᠱ⃮ᾮࢆ /(' ࡛  ศ㛫↷ᑕࡋࡓ㸬኱Ẽ᮲௳ୗ㸪Υ࡛  ᫬㛫ᇵ㣴ᚋ㸪⃮ᗘィࢆ⏝࠸࡚ QP
࡛⳦య⃮ᗘࢆ ᐃࡋࡓ㸬 㸬⤖ᯝ࣭⪃ᐹ 5%3(,#%6 ࡢᢠ⳦⬟ホ౯ཱྀ⭍ෆ⣽⳦࡛࠶ࡿ 6WUHSWRFRFFXV PXWDQV ࡟ᑐࡍࡿ 5%3(,#%6 PJP/ ࡢ D3'7 ຠᯝࢆ⃮ᗘἲ࡟ࡼࡾㄪ࡭
ࡓࠋ⃮ᗘࡣᠱ⃮ᾮ୰ࡢ⣽⳦⩌ࡢ⤒᫬ⓗ࡞ቑṪࢆ཯ᫎࡋࠊ⃮ᗘࡀప࠸࡜࠸࠺ࡇ࡜ࡣࠊᠱ⃮ᾮ୰ࡢ⣽⳦ᩘࡀᑡ࡞

− 138 −

࠸ࡇ࡜ࢆព࿡ࡍࡿࠋ /(' ↷ᑕ࡞ࡋ /LJKW ࡟࠾࠸࡚ࠊ5%3(,#%6 Ꮡᅾୗ 5% ⃰ᗘ JP/ ࡛  ᫬㛫ᚋ࡟⃮ᗘࡢῶᑡࡀ☜ㄆࡉࡉࡽ࡟㸪5%3(,#%6 ࡢᏑᅾୗ࡛▷᫬㛫  ศ㛫 /(' ↷ᑕࡍࡿ࡜/LJKW 㸪⣽⳦ᠱ⃮ᾮࡢ⃮ᗘࡀࡉࡽ࡟పୗࡋࠊ⣽⳦ቑṪࡀᢚไࡉࢀࡿ D3'7 άᛶࡀ☜ㄆࡉࢀࡓࠋ௚᪉ࠊ 5% ༢⊂ JP/㸪5%
3(,#%6 ࡟࠾ࡅࡿ 5% ࡜ྠ㔞 ࡛ࡢ 6WUHSWRFRFFXV PXWDQV ࡟ᑐࡍ/LJK W 
6P୛ౕ

ࢀࠊ5%3(,#%6 ⮬యࡢᢠ⳦ຠᯝࡀ࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓ )LJ㸯 ࠋ/LJK W 







ࡿ D3'7 άᛶࡣࠊప࠸ࡶࡢ࡛࠶ࡗࡓࠋ

&RQWURO

5%3(,#%65%RQO\$QWLEDFWHULDODJHQW

 /,9('($' ᰁⰍほᐹ ࡢ⃮ᗘ ᐃἲ࡛ࡣࠊ⏕⳦࡜Ṛ⳦ࡣ༊ู࡛ࡁ࡞࠸ࠋࡑࡇ࡛ࠊ
⏕⳦࡜Ṛ⳦ࢆ༊ู࡛ࡁࡿ /,9( '($'

)LJ5%3(,#%6 ࠾ࡼࡧ 5% ࡢ /(' ᢠ⳦⬟ẚ㍑

DE࢟ࢵࢺࢆ౑⏝ࡋࡓࠋ/,9( '($' ࢟ࢵࢺ࡛ᶆ㆑ࡋࡓ 6WUHSWRFRFFXV PXWDQV ࢆࠊ㠀Ꮡ
ᅾୗ &RQWURO 㸪5%3(,#%6 」ྜయ ;5%3(,   PJP/ Ꮡᅾୗ࡛⺯ග᳨ᰝࡋࡓᚤ⏕≀⏕Ꮡ⋡ࢹ࣮ࢱࢆ )LJ D E ࡟♧ࡍࠋ/,9('($' ᰁⰍほᐹ࡛ࡣࠊⓑⰍ /(' ↷ᑕᚋࡢ㠀Ꮡᅾୗ &RQWURO ࢧࣥࣉࣝࡣࠊ
୍㈏ࡋ࡚⥳Ⰽࡢ⺯ග ⏕⳦ ࢆ♧ࡋ࡚࠸ࡓ)LJ D 㠀Ꮡᅾୗ &RQWURO 㸪 E 5%3(,#%6」ྜయ ;5%3(,   PJP/ Ꮡᅾୗ࡛ࡢ⺯ග᳨ᰝ

)LJ D ࠋ୍᪉ࠊⓑⰍ /(' ↷ᑕᚋࡢṚ⳦ࡣࠊ㯤Ⰽ࢜ࣞࣥࢪⰍࡢ⺯ග࡛♧ࡉࢀࡿࡼ࠺࡟ࠊ5%3(,#%6 」ྜ
యࡢᏑᅾୗ࡛ከࡃほᐹࡉࢀࡓ )LJ E ࠋࡇࢀࡼࡾࠊ5%3(,#%6 」ྜయࡢᏑᅾୗ࡛ࠊྍどග࡟ࡼࡿẅ⳦ࡀほᐹࡉࢀࡓࠋࡋࡓࡀࡗ࡚ࠊ/,9('($' ᰁⰍほᐹ࠿ࡽࠊ5%3(,#%6 」ྜయࡢ 6WUHSWRFRFFXV PXWDQV ࡟ᑐࡍࡿ D3'
7 άᛶࢆᨭᣢࡍࡿ⤖ᯝࡀᚓࡽࢀࡓࠋ

྾ගᗘࡀᣦᶆ࡜࡞ࡿࠋ5%3(,#%6」ྜయ ;5%3(,   PJP/ Ꮡᅾୗ࠾ࡼࡧ㠀Ꮡᅾୗ࡛  ศ㛫ࡢⓑⰍ /(' ↷ᑕᚋࡢ 6WUHSWRFRFFXVPXWDQV ࡟ᑐࡍࡿ :67 άᛶホ౯ ࢆ)LJ D ࡟♧ࡍ㸬ࡲࡓࠊ5%3(,#%6」ྜయ ;5%3(,   PJP/ࡢᏑᅾୗ࡛ⓑⰍ /(' ࢆ  ศ㛫↷ᑕ

:67 DFWLYLW\ RI 1,+7FHOOV$EVRUEDQFHDWQP:67 άᛶホ౯ ࡛ࡣ⏕⣽⬊ࡢᩘࡣ:67 DFWLYLW\ RI 6 PXWDQV$EVRUEDQFHDWQP

 :67 ࡟ࡼࡿ⣽⬊ẘᛶホ౯
D









&RQWURO)LJ

5%3(,#%6



E









&RQWURO

5%3(,#%6

D ศ㛫ࡢⓑⰍ /('↷ᑕᚋࡢ 6WUHSWRFRFFXVPXWDQV࡟ᑐࡍࡿ :67άᛶ
E ศ㛫ࡢⓑⰍ /('↷ᑕᚋࡢ 1,+7⣽⬊࡟ᑐࡍࡿ :67άᛶ

ࡋࡓᚋࡢ 1,+7 ⣽⬊ ࣐࢘ࢫ⫾ඣ⓶⭵࠿ࡽศ㞳ࡋࡓᇵ㣴⣽⬊ ࡢ ⣽⬊ẘᛶ ࡢ :67 άᛶホ౯ ࢆ )LJ E ࡟♧ࡍ㸬ࢥࣥࢺ࣮ࣟࣝ 5%3(,#%6」ྜయ㠀Ꮡᅾୗ ࡜ 5%3(,#%6 」ྜయ ࡢ㛫࡛ 1,+7 ⣽⬊ࡢ⏕Ꮡ⋡࡟᭷ពᕪࡀ࠶ࡿࡀ㸪1,+7 ⣽⬊ࡢ⏕Ꮡ⋡పୗࡣ 6WUHSWRFRFFXV PXWDQV ࡢ⏕Ꮡ⋡పୗࡼࡾࡶᑠࡉ࠸ࡇ࡜ࡀศ࠿ࡿࠋࡇࡢࡇ࡜࠿ࡽࠊ5%3(,#%6 」ྜ
యࡢ D3'7 స⏝ࡣ 1,+7 ⣽⬊࡟ᑐࡋ࡚పࡃࠊ6WUHSWRFRFFXV PXWDQV ⣽⳦ ࡟ᑐࡋ࡚ࡼࡾຠ⋡ⓗ࡛࠶ࡿࡇ࡜ࡀ
♧၀ࡉࢀࡓࠋᮏ◊✲ࡣࠊࣂ࢖࢜ࢩࣜ࢝ࢆගቑឤ๣ 5% ࡢᢸᣢయ࡜ࡋ࡚ D3'7 ࡬㐺⏝ࡋࡓึࡵ࡚ࡢ౛࡛࠶ࡾࠊ
ᢸᣢ࡟క࠺ 5% จ㞟ࢆᢚไࡍࡿࡇ࡜࡛ 5%3(,#%6 ࡢ㧗࠸ 2 ⏕ᡂຠ⋡࡜ཱྀ⭍ෆ⣽⳦ 6WUHSWRFRFFXV PXWDQV ࡬ࡢྍどගẅ⳦ຠᯝࢆᐇド࡛ࡁࡓࠋ௒ᚋࡢࡉࡽ࡞ࡿ◊✲ᡂᯝ࡟ࡼࡗ࡚ࠊṑ࿘⑓ࡔࡅ࡛࡞ࡃ௚ࡢ⣽⳦ឤᰁ⑕࡬ࡢ
ᛂ⏝ࡶᮇᚅࡉࢀࡿࠋ

㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧− 139 −

⢊ᮎ෬㔠ἲ࡟ࡼࡿ㧗ᶵ⬟ᛶ࣐ࢢࢿࢩ࣒࢘ࡢ๰〇࠾ࡼࡧࡑࡢ≉ᛶホ౯᪥ᮏ኱Ꮫ⏕⏘ᕤᏛ㒊       ஂಖ⏣ṇᗈ኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ      ㏆⸨຾⩏ ⥴ゝ࣐ࢢࢿࢩ࣒࢘⢊ᮎ࡟ᑐࡋ࡚㸪⢊ᮎ෬㔠ἲࢆ㐺⏝ࡋࡓ◊✲ࡀሗ࿌ࡉࢀ࡚࠸ࡿࠋ≉࡟㸪⢊ᮎࢆ᧠ᢾ࣭ΰྜ࣭⢊○ࡍࡿࡇ࡜࡛
㔠ᒓࡢᙉ໬ᶵᵓࢆྠ᫬࡟Ⓨ⌧ࡀ࡛ࡁࡿ࣓࢝ࢽ࣑࢝ࣝࣜࣥࢢ㸦0HFKDQLFDO0LOOLQJ00㸧࡜㸪ᚓࡽࢀࡓ⢊ᮎࢆప ࠿ࡘ▷᫬㛫࡛ᅛ໬ᡂᙧࡍࡿࡇ࡜ࡀྍ⬟࡞ᨺ㟁ࣉࣛࢬ࣐↝⤖㸦6SDUN3ODVPD6LQWHULQJ636㸧ࢆ⤌ࡳྜࢃࡏࡓ 00636 ࣉࣟࢭࢫࡀ㐺⏝ࡉࢀ࡚࠸ࡿࠋ
ᮏ◊✲ࡣ㸪࣐ࢢࢿࢩ࣒࢘࡟ࢳࢱࣥࢆῧຍࡍࡿࡇ࡜࡟╔┠ࡋࡓࠋ࣐ࢢࢿࢩ࣒࢘࡟ࢳࢱࣥࢆῧຍࡋ࡚ࡶ㸪ᅛ⁐యࡸ໬ྜ≀ࡢᙧᡂࡀ࡛ࡁ࡞࠸ࡇ࡜ࡀ 0J7L ⣔ᖹ⾮≧ែᅗ࠿ࡽ▱ࡽࢀ࡚࠸ࡿࠋ࣓࢝ࢽ࢝ࣝ࢔ࣟ࢖ࣥࢢ㸦0HFKDQLFDODOOR\LQJ㸸0$㸧࡟ࡼࡾ࣐ࢢࢿࢩ࣒࢘࡟ࢳࢱࣥࢆ」ྜ໬ࡋ㸪ᚓࡽࢀࡓ⢊ᮎࢆ 636 ࡛ᅛ໬ᡂᙧࡋ㸪ᮦᩱࡢ๰〇ࢆヨࡳࡓࠋࡍ࡞ࢃࡕ㸪0$636 ࣉࣟࢭࢫ࡛ 0J7L ⣔ᮦᩱࡢ๰〇࠾ࡼࡧࡑࡢ≉ᛶ࡟ࡘ࠸࡚ㄪ࡭ࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ
 ᐇ㦂᪉ἲ⣧࣐ࢢࢿࢩ࣒࢘⢊ᮎ㸦⣧ᗘ 㸧࠾ࡼࡧ⣧ࢳࢱࣥ⢊ᮎ㸦⣧ᗘ 㸧ࢆ౑⏝ࡋࡓࠋ⣧࣐ࢢࢿࢩ࣒࢘࡟ᑐࡋ࡚㸪⣧ࢳࢱࣥࢆ PDVV㸣㸪PDVV㸣㸪PDVV㸣ῧຍࡋ㸪ྛ⤌ᡂࡢ⥲㔞ࡀ J ࡟࡞ࡿࡼ࠺࡟⢭ᐦኳ⛗ࢆ⏝࠸࡚⛗㔞ࡋࡓࠋࡇࢀࡽࡢ⢊ᮎ࡜ᕤල㗰〇࣮࣎ࣝ  ಶ J ࢆᕤල㗰〇ᐜჾ࡟⿦ධࡋࡓࠋ0$ ฎ⌮࡟ࡣ᣺ືᆺ࣮࣑࣎ࣝࣝࢆ⏝࠸㸪0$ ฎ⌮᫬㛫ࡣ K ࠾ࡼࡧ K ࡜ࡋࡓࠋ636 ⿦⨨ࢆ౑⏝ࡋ㸪0$ ฎ⌮࠿ࡽᚓࡽࢀࡓྛ⢊ᮎ J ࢆ㯮㖄ᆺ PP ࡟⿦ධࡋ㸪
636 ⿦⨨ࢳࣕࣥࣂ࣮ෆࡢ┿✵ᗘࢆ 3D ⛬ᗘ࡟ಖࡕ㸪㯮㖄ࣃࣥࢳ࡛ୖୗ࠿ࡽᅽຊࢆຍ࠼࡚㸪636 ᮦࢆస〇ࡋࡓࠋ↝⤖ᗘࡣ .㸪.㸪. ࡢ  ᮲௳࡛⾜࠸㸪ຍᅽຊ 03D㸪↝⤖ಖᣢ᫬㛫 PLQ࡜ࡋࡓࠋ
⢊ᮎࡢ◳ࡉࡣ㸪ᶞ⬡࡟⢊ᮎࢆᇙࡵ㎸ࡳ㸪࢚࣓࣮ࣜ⣬࡛◊☻ᚋ㸪࣐࢖ࢡࣟࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂ᶵ㸦Ⲵ㔜 NJ㸪ಖᣢ᫬㛫 V㸧࡛  ࣏࢖ࣥࢺ ᐃࡋ㸪ࡑࡢ᭱኱᭱ᑠࡢ  Ⅼࢆ㝖࠸ࡓ  ಶࡢࢹ࣮ࢱ࠿ࡽᖹᆒ್ࢆồࡵࡓࠋ636 ᮦࡢ◳ࡉࡣ㸪࢚࣓࣮ࣜ⣬࡛ 636 ᮦࡢຍᅽ㠃ࢆ◊☻ᚋ㸪࣐࢖ࢡࣟࣅࢵ࣮࢝ࢫ◳ࡉヨ㦂ᶵ㸦Ⲵ㔜 NJ㸪ಖᣢ᫬㛫 V㸧࡛  ࣏࢖ࣥࢺ ᐃࡋ㸪ࡑࡢ᭱኱᭱ᑠࡢ  Ⅼࢆ㝖࠸ࡓ  ಶࡢࢹ࣮ࢱ࠿ࡽᖹᆒ್ࢆồࡵࡓࠋ⢊ᮎ࠾ࡼࡧ 636 ᮦࡢ໬ྜ≀ࢆྠᐃࡍࡿࡓࡵ࡟ ; ⥺ᅇᢡ⿦⨨ࢆ⏝࠸ࡓࠋᅇᢡ᮲௳ࡣ㸪⟶⌫ &X.D⥺㸪⟶㟁ὶ P$㸪⟶㟁ᅽ N9㸪ᅇᢡ㏿ᗘ  rV 㸪ᅇᢡゅᗘ ȟࡀ arࡢ⠊ᅖ࡛⾜ࡗࡓࠋᐇ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹᅗ  ࡟ 7L ࡢῧຍ㔞ࢆ PDVV࡜ኚ໬ࡉࡏ࡚ 0$K ࠾ࡼࡧ K ࠿ࡽస〇ࡋࡓ⢊ᮎࡢ◳ࡉࢆ♧ࡍࠋ0$K ࡢ

᫬㸪3XUH0J ࡜ 0JPDVV7L ࡣ࡯ࡰྠ➼ࡢ◳ࡉࢆ♧ࡋ㸪ࡑࢀࡒࢀ +9 ࡜ +9 ࡛࠶ࡗࡓࡀ㸪0JPDVV7Lࡢ◳ࡉࡣ +9 ࢆ♧ࡋ㸪3XUH0J ࡢ◳ࡉ࡜ẚ࡭࡚ +9 ୖ᪼ࡋࡓࠋ୍᪉࡛㸪0JPDVV7L ࡛ࡣ +9 ࢆ♧ࡋ◳ࡉࡣࡸࡸపୗࡋࡓࠋ0$K ࡢ᫬㸪3XUH0J ࡢ◳ࡉࡣ +9 ࢆ♧ࡋࡓࠋ0JPDVV7L ࡢ◳ࡉࡣ +9 ࢆ♧ࡋ3XUH0J
ࡢ◳ࡉࡼࡾࡶ +9 ࢆ♧ࡋࡓࠋࡋ࠿ࡋ 0JPDVV7L ࡟ቑຍࡍࡿ࡜◳ࡉࡣ +9 ࢆ♧ࡋ 3XUH0J ࡜ྠ➼ࡢ◳ࡉࢆ♧ࡋࡓࡀ㸪0JPDVV7L ࡢ◳ࡉࡣ +9 ࢆ♧ࡋ㸪3XUH0J ࡢ◳ࡉ࡜ẚ࡭࡚ +9 ୖ᪼ࡋࡓࠋᅗ  ࡟ 0$K ୍ᐃ࡜ࡋ 7L ࡢῧຍ㔞ࢆ PDVV࡜ኚ໬ࡉࡏ࡚ᚓࡽࢀࡓ⢊ᮎ࠿ࡽస〇ࡋࡓ 636 ᮦࡢ◳ࡉࢆ♧ࡍࠋ↝⤖ ᗘ . ࡢ᫬㸪3XUH0J ࡜ 0JPDVV7L ࡣ࡯ࡰྠ➼ࡢ◳ࡉࢆ♧ࡋ㸪ࡑࢀࡒࢀ +9 ࡜ +9 ࡛࠶ࡗࡓࠋ
୍᪉㸪0JPDVV7L ࡣ +9 ࢆ♧ࡋ㸪3XUH0J ࡢ◳ࡉࡼࡾࡶ +9 ῶᑡࡋࡓࠋࡲࡓ㸪0JPDVV7L ࡣ +9 ࢆ♧ࡋࡓࠋ↝⤖ ᗘ . ࡢ᫬㸪0JPDVV7L ࡛ࡣ +9 ࢆ♧ࡋ 3XUH0J ࡼࡾࡶ◳ࡉࡣ +9 ୖ᪼ࡋࡓࠋ0JPDVV7L ࠾ࡼࡧ 0JPDVV7L ࡛ࡣ㸪+9 ࠾ࡼࡧ +9 ࢆ♧ࡋ㸪0JPDVV7L ࡢ◳ࡉ࡜ẚ࡭࡚⣙ +9 ῶᑡ− 140 −

ࡋࡓࠋ↝⤖ ᗘ . ࡢ᫬㸪0JPDVV7L ࡛ࡣ +9 ࢆ♧ࡋ 3XUH0J ࡼࡾ◳ࡉࡣ +9 ୖ᪼ࡋࡓࠋࡇࡢ᮲௳ࡣ㸪ᮏ◊✲࡛స〇ࡋࡓ 636 ᮦࡢ୰࡛᭱ࡶ㧗࠸◳ࡉ࡛࠶ࡗࡓࠋ0JPDVV7L ࠾ࡼࡧ 0JPDVV7L ࡢ◳ࡉ +9 ࠾ࡼࡧ +9 ࢆ♧ࡋ㸪7L ࡢῧຍ㔞ࡀቑ࠼ࡿ࡟ࡘࢀ࡚㸪◳ࡉࡣῶᑡࡍࡿഴྥࢆ♧ࡋࡓࠋ
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    ᅗ   0J[7L [ PDVV  ⢊ᮎࡢ◳ࡉ    ᅗ   0J[7L [ PDVV 636 ᮦࡢ◳ࡉ㸬ᅗ  ࡟ 0$K ࡟ࡼࡗ࡚ᚓࡽࢀࡓ 0JPDVV7L ⢊ᮎࢆ␗࡞ࡿ↝⤖ ᗘ࡛ᅛ໬ᡂᙧࡋࡓ 636 ᮦࡢ ; ⥺ᅇᢡࣃࢱ࣮ࣥ
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ᅗ   0$K ࡢ⢊ᮎ࠿ࡽ↝⤖ ᗘࢆኚ໬ࡉࡏ࡚స〇ࡋࡓ 0JPDVV7L636 ᮦࡢ ; ⥺ᅇᢡ⤖ᯝ ⤖ゝ
0$ ࡜ 636 ࢆ⤌ࡳྜࢃࡏࡓ⢊ᮎ෬㔠ࣉࣟࢭࢫ࡟ࡼࡗ࡚ 0J7L ⣔ࡢ 636 ᮦࢆ๰〇ࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ636 ᮦࡢ◳ࡉࡣࢳࢱࣥ
ࡢῧຍ㔞ࡔࡅ࡛࡞ࡃ㸪↝⤖ ᗘ࡟ࡼࡗ࡚ࡶไᚚࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋᅛ┦཯ᛂ࡟ࡼࡗ࡚7L+ ࡢ⏕ᡂࡀㄆࡵࡽ
ࢀࡓࠋ㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧− 141 −

㼀㼕㻮 䝞䝹䜽䛾≀⌮䞉ຊᏛ≉ᛶホ౯㻌ᮾ໭኱Ꮫ㻌 ኱Ꮫ㝔⎔ቃ⛉Ꮫ◊✲⛉ᰩ⏣኱ᶞ㻝㻚 ┠ⓗ㻌䝏䝍䞁䠄7L䠅ྜ㔠䛿䠈䛭䛾㧗䛔ẚᙉᗘ䛸⪏㣗ᛶ䛛䜙⯟✵Ᏹᐂᮦᩱ䛸䛧䛶ᗈ䛟⏝䛔䜙䜜䛶䛔䜛䠊䜎䛯䠈㏆ᖺ⯟✵ᶵ䛾ᵓ㐀ᮦᩱ䛸䛧䛶౑⏝䛥䜜䜛䜘䛖䛻䛺䛳䛯Ⅳ⣲⧄⥔ᙉ໬䝫䝸䝬䞊䛸 7L ྜ㔠䛾┦⁐ᛶ䛜㢧ⴭ䛷䛒䜛䛣䛸䛛䜙䠈䛥䜙䛺䜛⇞㈝ྥ
ୖ䛾䛯䜑䛻䠈ᚑ᮶䛾 7L ྜ㔠䜘䜚䜒㧗䛔ẚᙉᗘ䜢᭷䛩䜛᪂䛧䛔 7L ᮦᩱ䛾㛤Ⓨ䛜ồ䜑䜙䜜䛶䛔䜛䠊฼⏝ྍ⬟䛺 7L ᮦᩱ䛾୰䛷䜒䠈7L ᇶྜᮦᩱ䠄70&䠅䛿䠈ᚑ᮶䛾 7L ྜ㔠䜘䜚䜒㧗䛔ẚᙉᗘ䜢᭷䛩䜛ྍ⬟ᛶ䛜䛒䜛䛯䜑䠈ὀ┠䜢㞟䜑䛶䛔䜛䠊䝩䜴໬Ⅳ⣲ 7L% 䜴䜱䝇䜹䛿 7L ྜ㔠୰䛷໬Ꮫⓗ䛻Ᏻᐃ䛷䛒䜛䛣䛸䛜䜟䛛䛳䛶䛚䜚䠈7L%䠄î .䠅䛸 7L䠄î .䠅䛾⇕⭾ᙇಀᩘ䛜䜟䛪䛛䛷䛒䜛䛣䛸䛛䜙䠈7L% 䜴䜱䝇䜹䛿 70& 䛾⿵ᙉᮦ䛸䛧䛶᭷ຊ䛺ೃ⿵䛸䛺䜚ᚓ䜛ྍ⬟ᛶ䛜㧗䛟䠈᭱䜒᭷ຊ䛺 70& ⏝ᙉ໬ᮦᩱ䛾୍䛴䛷䛒䜛䠊䛣䜜䜎䛷ከ䛟䛾◊✲⪅䛜 7L7L% 」ྜᮦᩱ䛾స〇䛸ຊᏛ≉ᛶホ౯䛻ྲྀ䜚⤌䜣䛷䛝䛯䛜䠈7L% ༢య䛾≀⌮䞉ຊᏛ≉ᛶ䛜䝕䞊䝍䛸䛧䛶Ꮡᅾ䛧䛺䛔䛯䜑䠈⌮ㄽ⪃ᐹ䛚䜘䜃᭷㝈せ⣲ゎᯒ䛜୙༑ศ䠈䜎䛯䛿䛷䛝䛺䛔䛾䛜⌧≧䛷䛒䜛䠊䛭䛣䛷䠈ᮏ◊✲䛷䛿䠈7L7L%ĺ7L% 䛾཯ᛂ䜢ไᚚ䛧䠈7L% 䝞䝹䜽䛾స〇䜢ヨ䜏䛯䠊䛭䛧䛶䠈స〇䛧䛯 7L% 䝞䝹䜽䛾ຊᏛ≉ᛶ䜢ホ౯䛧䠈7L% ᙉ໬」ྜᮦᩱ䛾⌮ㄽ⪃ᐹ䛸᭷㝈せ⣲ゎᯒ䛻୙ྍḞ䛺ᇶ♏䝕䞊䝍䜢ྲྀᚓ䛧䛯䠊㻞㻚 ◊✲᪉ἲ㻌
ฟⓎཎᩱ䛸䛧䛶䠈⢏ᚄ PP ௨ୗ䛾⌫≧䜺䝇䜰䝖䝬䜲䝈 7L ⢊ᮎ䠄7,/23䠈኱㜰䝏䝍䞁䝔䜽䝜䝻䝆䞊ᰴᘧ఍♫䠅䛸⢏ᚄ  PP 䛾⌫≧஧䝩䜴໬䝏䝍䞁䠄7L%䠅⢊ᮎ䠄7L%1)䠈᪥ᮏ᪂㔠ᒓᰴᘧ఍♫〇䠅䜢⏝ព䛧䛯䠊኱Ẽ୰䛷  ศ㛫䠈ங㖊䛸ஙᲬ䛻䜘䜛ᡭΰྜ䜎䛯䛿㐟ᫍᆺ䝪䞊䝹䝭䝹⿦⨨䠄3䠈䝣䝸䝑䝏䝳䞉䝆䝱䝟䞁ᰴᘧ఍♫䠅䛻䜘䜛䝪䞊䝹䝭䝹ΰྜ䛾ᚋ䠈ΰྜ⢊ᮎ䜢䜹䞊䝪䞁ᆺ䛻ධ䜜䠈䝇䝟䞊䜽䝥䝷䝈䝬↝⤖䠄636䠅⿦⨨䠄'U6LQWHU 636䠈ᐩኈ㟁Ἴᕤᶵᰴᘧ఍♫〇䠅䛷  03D 䛾୍㍈ຍᅽୗ䠈ႏ䛷  ศ㛫↝⤖䛧䛯䠊7L 䛸 7L% 䛾ẚ⋡䠄DW䠅䛜䠈䠈䠈 䛸䛺䜛䜘䛖䛻ไᚚ䛧䛯䠊636 ᚋ䛻䠈䜹䞊䝪䞁ᆺ䛸ᚓ䜙䜜䛯↝⤖య䛾௜╔䜢㑊䛡䜛䛯䜑䠈䜹䞊䝪䞁ᆺ䛸ΰྜ⢊ᮎ䛾㛫䛻ཌ䛥 PP 䛾䜾䝷䝣䜯䜲䝖䝅䞊䝖䜢ᤄධ䛧䛯䠊䜹䞊䝪䞁䝎䜲䝇䛾⾲㠃䛷ィᗘ䛿䠈636 ⿦⨨䛾䜺䝷䝇❆䛾๓䛻タ⨨䛧䛯ᨺᑕ

ᗘィ

䛧䛯䠊

↝⤖య䛾ᵓ㐀䛿䜶䝑䜽䝇⥺ᅇᢡ⿦⨨䠄;5' 6PDUWODE䠈䝸䜺䜽ᰴᘧ఍♫䠅䜢⏝䛔䛶ྠᐃ䛧䛯䠊;5' 䝟䝍䞊䞁䛿䝇䝔䝑䝥䝃䜲䝈 䠈&X.D⥺䠈䛷ᚓ䛯䠊㉮ᰝ⠊ᅖ䛿 䛸䛧䛯䠊䜎䛯䠈䛭䜜䛮䜜䛾↝⤖య䛾ᐦᗘ䜢䜰䝹䜻䝯䝕䝇ἲ䛻䜘䛳䛶ᐃ䛧䛯䠊୪⾜䛧䛶䠈↝⤖య䜢ᶞ⬡䛻ᇙධ䛧䠈㙾㠃◊☻䜢⾜䛳䛯䠊䛭䛧䛶䠈䝘䝜䜲䞁䝕䞁䝍䞊䠄$QWRQ 3DDU ♫䠅䛻䜘䛳䛶䠈↝⤖య䛾䝡䝑䜹䞊䝇◳䛥䛸ᢲ䛧㎸䜏ᙎᛶ⋡䜢  ᅇ䛪䛴㻟㻚 ᐇ㦂⤖ᯝ㻌ᐃ䛧䛯䠊ᅗ  䛻䠈䜶䝑䜽䝇⥺ᅇᢡ⤖ᯝ䜢♧䛩䠊ྛ↝⤖య䜘䜚ᚓ䜙䜜䛯䜶䝑䜽䝇⥺ᅇᢡ䝥䝻䝣䜯䜲䝹୰䛻䛿䠈7L% 䛸 7L% 䛻ຍ䛘䛶䠈7L 䛸ྠ䛨 ⤖ᬗᵓ㐀䛊✵㛫⩌3PPF  䛋䛷ഹ䛛䛻᱁Ꮚᐃᩘ䛾኱䛝䛔 7L2[䛊7L2 䜎䛯 䛿 7L2䛋䝢䞊䜽䛜☜ㄆ䛥䜜䛯䠊䜎䛯䠈ヱᙜ䝢䞊䜽䛾᳨ฟ≧ἣ䛜୙᫂░䛷䛒䜚䠈ྠᐃ⤖ᯝ䛾ಙ㢗ᛶ䛻Ḟ䛡䜛䛜䠈7L2 䛻㢮ఝ䛺䝢䞊䜽䜒ഹ䛛䛻ㄆ䜑䜙䜜䛯䠊᳨ฟ䛥䜜䛯 7L2[ 䝢䞊䜽䛿ヨᩱ㛫䛷䝢䞊䜽఩⨨䛜␗䛺䜚䠈ங㖊ΰྜ䛾䝢䞊䜽䛿 7L2䠈䝪䞊䝹䝭䝹ΰྜ䛾䝢䞊䜽䛿 7L2 䛻㏆䛟䛺䛳䛶䛔䜛䛣䛸䛛䜙䠈䝪䞊䝹䝭䝹䛿䜘䜚኱䛝䛺㓟໬䜢୚䛘䛶䛔䛯䠄ᅗ  ỈⰍⅬ䛸㯤Ⅼ䠅䠊䜎䛯䠈䝢䞊䜽ゎᯒ⏝䛻ᐇ᪋䛧䛯୺せ䝢䞊䜽㏆ഐ䛾䝥䝻䝣䜯䜲䝹䝣䜱䝑䝔䜱䞁䜾䛛䜙䠈ୖグ≀㉁௨እ䛻䜒ᚤ㔞䛾␗┦䛜ΰᅾ䛧䛶䛔䜛ྍ⬟ᛶ䛜䛒䛳䛯䠊୍᪉䛷䠈7L% 䛜᏶඲䛻཯ᛂ䛧䛶 7L% 䜈ኚ໬䛩䜛䛣䛸䜢ᮇᚅ䛧䛶䛔䛯䛜䠈7L 䛸
7L% 䛾ẚ⋡䠄DW䠅䛜䠈 䛾ሙྜ䛷䜒 7L% 䛜ṧᏑ䛧䛶䛔䜛䛣䛸䛜䜟䛛䛳䛯䠄ᅗ  ㉥Ⅼ䠅䠊୺せ䝢䞊䜽䛾ᅇᢡゅᗘ䛻䛿䠈୍㒊ヨᩱ㛫䛷ᕪ␗䛜☜ㄆ䛷䛝䜛䛣䛸䛛䜙䠈㠃㛫㝸䛿ᡭΰྜ䍺䝪䞊䝹䝭䝹ΰྜ䛷䛒䜛䛸⪃䛘䜙䜜䜛䠊䜎䛯䠈୺せ䝢䞊䜽䛾✚ศᖜ䛻䛿୍㒊ヨᩱ㛫䛷ᕪ␗䛜☜ㄆ䛷䛝䜛䛣䛸䛛䜙䠈7L% 䛾⤖ᬗᏊᚄ䛻䛿䠈ᡭΰྜ䠚䝪䞊䝹䝭䝹ΰྜ䛷䛒䜛䛸⪃䛘䜙䜜䜛䠊䛯䛰䛧䠈7L% 䛾⤖ᬗᏊᚄ䛿䜶䝑䜽䝇⥺ᅇᢡ䛾㐺⏝⠊ᅖ䠄 QP䠅䜢㉸䛘䜛኱䛝䛥䛸䛺䛳䛶䛔䜛䛣䛸䛛䜙䠈ィ䛷䛝䛺䛛䛳䛯䠊⾲  䛻↝⤖య䛾┦ᑐᐦᗘ䠈ᢲ䛧㎸䜏ᙎᛶ⋡䠈䝡䝑䜹䞊䝇◳䛥䜢♧䛩䠊┦ᑐᐦᗘ䛿䠈ᡭΰྜ䛸䝪䞊䝹䝭䝹ΰྜ䜢ẚ− 142 −

㍑䛩䜛䛸䠈ண᝿㏻䜚䝪䞊䝹䝭䝹ΰྜ䛾᪉䛜㧗䛟䛺䛳䛯䠊䛣䜜䛿ᙉຊ䛺ᶵᲔ䜶䝛䝹䜼䞊䛜ຍ䜟䜛䛯䜑䛷䛒䜛䛜䠈ୖ㏙䛧䛯
䜘䛖䛻䠈↝⤖య䛾㓟໬䛜㐍䜐䛣䛸䛻䛿␃ព䛜ᚲせ䛷䛒䜛䠊䜎䛯䠈7L 䛾ῧຍ㔞䛜ቑ䛘䜛䛸┦ᑐᐦᗘ䛜㧗䛟䛺䜛ഴྥ䛻䛒䛳䛯䠊䛣䜜䛿 7L 䛜⁐⼥䛧䠈7L% ໬䛩䜛㐣⛬䛷⦓ᐦ໬䛜ಁ㐍䛥䜜䜛䛯䜑䛷䛒䜛䛸⪃䛘䜙䜜䜛䠊ᢲ䛧㎸䜏ᙎᛶ⋡䠈䝡䝑䜹䞊䝇◳䛥䜒 7L 䛾ῧຍ㔞䛜ቑ䛘䜛䛸㧗䛟䛺䜛ഴྥ䛻䛒䛳䛯䠊䛯䛰䛧䠈䛣䜜䜙䛾್䛿ᐃ್䛾䜀䜙䛴䛝䛜㠀ᖖ䛻኱䛝䛟䠈ᐃ㔞ホ౯䛻䛿ᐇ㦂䛜୙༑ศ䛷䛒䜛䛣䛸䜢⿵㊊䛩䜛䠊≉䛻䠈ᡭΰྜ䛧䛯 7L% ༢య䛾↝⤖య䛿䠈┦ᑐᐦᗘ䛜ప䛔䛣䛸䛻䜒㉳ᅉ䛧䛶䠈್䛜ప䜑䛻ᐃ䛥䜜䛯䠊

ᅗ 7L&1) 䛚䜘䜃 7L&1) ↝⤖య䛾඾ᆺⓗ䛺ᛂຊ䜂䛪䜏᭤⥺⾲  ↝⤖య䛾┦ᑐᐦᗘ䠈ᢲ䛧㎸䜏ᙎᛶ⋡䠈䝡䝑䜹䞊䝇◳䛥㻠㻚 ⤖ㄽ㻌ᮏ◊✲䛷䛿䠈7L7L%ĺ7L% 䛾཯ᛂ䜢ไᚚ䛧䠈7L% 䝞䝹䜽䛾స〇䛸䠈స〇䛧䛯 7L% 䝞䝹䜽䛾ຊᏛ≉ᛶ䜢ホ౯䛧䠈7L%
ᙉ໬」ྜᮦᩱ䛾⌮ㄽ⪃ᐹ䛸᭷㝈せ⣲ゎᯒ䛻୙ྍḞ䛺ᇶ♏䝕䞊䝍ྲྀᚓ䜢ヨ䜏䛯䠊7L% 䛜᏶඲䛻཯ᛂ䛧䛶 7L% 䜈ኚ໬䛩䜛䛣䛸䜢ᮇᚅ䛧䛶䛔䛯䛜䠈7L 䛸 7L% 䛾ẚ⋡䠄DW䠅䛜䠈 䛾ሙྜ䛷䜒 7L% 䛜ṧᏑ䛧䛶䛔䜛䛣䛸䛜䜟䛛䛳䛯䠊┦ᑐᐦᗘ䠈ᢲ䛧㎸䜏ᙎᛶ⋡䠈䝡䝑䜹䞊䝇◳䛥䜒 7L 䛾ῧຍ㔞䛜ቑ䛘䜛䛸㧗䛟䛺䜛ഴྥ䛻䛒䛳䛯䠊䛯䛰䛧䠈䛣䜜䜙䛾್䛿ᐃ್䛾䜀䜙䛴䛝䛜㠀ᖖ䛻኱䛝䛟䠈ᐃ㔞ホ౯䛻䛿ᐇ㦂䛜୙༑ศ䛷䛒䜛䛣䛸䜢⿵㊊䛩䜛䠊௒ᚋ䛿 7L ๭ྜ䜢䛒䛢䠈᏶඲䛻 7L% ໬䛩䜛ΰྜẚ⋡䜢᫂䜙䛛䛻䛧䛯ୖ䛷ຊᏛ≉ᛶ䜢ホ౯䛩䜛䠊㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 ඹྠ◊✲ศ㔝䠖」ྜ໬ᶵᵓᏛศ㔝 − 143 −

ࣂ࢖ࣥࢲࢪ࢙ࢵࢸ࢕ࣥࢢ✚ᒙ㐀ᙧ࡬ࡢᛂ⏝࡟ྥࡅࡓ 7L ࣉࣜࣇ࢛࣮࣒࡬ࡢ⁐⼥ 0J ࡢ
↓ຍᅽᾐ㏱⌧㇟ྡྂᒇ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉≀㉁ࣉࣟࢭࢫᕤᏛᑓᨷᑠᶫ ┾㸪㕥ᮌ㣕㫽㸯㸬┠ⓗࣂ࢖ࣥࢲࢪ࢙ࢵࢸ࢕ࣥࢢ㸦%LQGHU-HWWLQJ%-7㸧ࡣ✚ᒙ㐀ᙧࣉࣟࢭࢫࡢ୍ࡘ࡛ࠊ⢊ᮎᒙ࡟ࣂ࢖ࣥࢲࢆ
㑅ᢥⓗ࡟ᄇᑕࡋ࡚ࣉࣜࣇ࢛࣮࣒ࢆᡂᙧࡍࡿࠋࡑࡢᚋࠊࣉࣜࣇ࢛࣮࣒ࢆຍ⇕ࡋ࡚ࣂ࢖ࣥࢲࢆ㝖ཤࡋࠊ᭱ᚋ࡟↝⤖ࡋ࡚⦓ᐦ࡞〇ရࢆᚓࡿࠋࡋ࠿ࡋࠊ↝⤖୰࡟ᡂᙧయࡀ཰⦰ࡍࡿࡓࡵࠊ㧗࠸ᑍἲ⢭ᗘࢆᚓࡿࡇ࡜ࡣ㞴ࡋ࠸ࠋᮏ◊✲࡛ࡣࠊ↓ຍᅽ⁐⼥ᾐ㏱ἲ㸦3UHVVXUHOHVV0HOW,QILOWUDWLRQ30,㸧ࢆ↝⤖ࡢ௦᭰ࣉࣟࢭࢫ࡜ࡋ࡚ %-7 ᪉ᘧ✚ᒙ㐀ᙧ࡟㐺⏝ࡍࡿࡓࡵࡢᇶ♏◊✲ࢆᐇ᪋ࡋ࡚࠸ࡿࠋ30, ࡛ࡣࠊ⁐⼥㔠ᒓࡀẟ⟶ຊ࡟ࡼࡗ࡚ከᏍ㉁ࣉࣜࣇ࢛࣮࣒࡟⮬Ⓨⓗ࡟ᾐ㏱ࡋࠊ㔠ᒓᇶ」ྜᮦᩱࢆ〇㐀ࡍࡿࡇ࡜ࡀ
࡛ࡁࡿࠋࣂ࢖ࣥࢲࢆ㝖ཤࡋࡓࣉࣜࣇ࢛࣮࣒࡟⁐⼥㔠ᒓࡀྵᾐࡍࢀࡤࠊࣉࣜࣇ࢛࣮࣒ࡣ཰⦰ࡍࡿࡇ
࡜࡞ࡃ⦓ᐦ࡞〇ရࢆ〇㐀࡛ࡁࡿࠋࡑࡢࡓࡵ࡟ࡣࠊࡍ࡭࡚ࡢẼᏍ࡟⁐⼥㔠ᒓࡀ඘ሸࡉࢀࠊṧ␃ẼᏍࢆ⏕ࡌ࡞࠸ࣉࣜࣇ࢛࣮࣒ࡢᵓ㐀ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࡀ㔜せ࡜࡞ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ7L ࣉࣜࣇ࢛࣮࣒ෆࡢ✵㝽ᵓ㐀ࡀ 30, ᕤ⛬ᚋࡢṧ␃ẼᏍ⋡࡟ཬࡰࡍᙳ㡪ࢆㄪᰝࡋࡓࠋ0J7L ⣔㸦⁐⼥ 0J ࡜
7L ࣉࣜࣇ࢛࣮࣒㸧ࢆ㑅ᢥࡋࡓࡢࡣࠊ⁐⼥ 0J ࡀ 7L ࡟ᑐࡋ࡚Ⰻዲ࡞⃿ࢀᛶࢆ♧ࡋࠊ7L ࡜㔠ᒓ㛫໬ྜ≀ࢆᙧᡂࡋ࡞࠸ࡇ࡜࡟ࡼࡿࠋ
㸰㸬◊✲᪉ἲ
ᖹᆒ⢏ᚄࡀ␗࡞ࡿ 7L ⢊ᮎ㸦ᖹᆒ⢏ᚄ PP㸧ࢆᵝࠎ࡞ᅽ⢊ᅽຊ㸦
03D㸧࡛෭㛫ᡂᙧࡋࠊ✵㝽ࡢ኱ࡁࡉ࡜┦ᑐᐦᗘࡀ␗࡞ࡿ 7L ⢊ᮎࣉࣜࣇ࢛࣮࣒ࢆస〇ࡋࡓࠋࡇࢀࡽࡢࣉࣜࣇ࢛࣮࣒ࢆ 7L ⢊ᮎ⢏ᚄ෭㛫ᡂᙧᅽຊࢆ⏝࠸࡚⾲グࡍࡿ㸦౛࠼ࡤ PP03D㸧ࠋ$U 㞺ᅖẼୗ࡟࡚ࠊ7L ࣉࣜࣇ࢛࣮࣒ࡢ୍㒊ࢆ⁐⼥ 0J ࡟ᾐₕࡋࠊ⁐⼥ 0J ࡢ 7L ࣉࣜࣇ࢛࣮࣒࡬ࡢ
ᾐ㏱ࢆಁࡋࡓࠋᾐ㏱᮲௳ࡣ Υ࡛  ศ㛫࡜ࡋࡓࠋᾐ㏱ࡢ⤖ᯝࠊ0J7L 」ྜᮦᩱࡀ〇㐀ࡉࢀࡿࠋ෭༷ᚋࡢࢧࣥࣉࣝ࡟ࡘ࠸࡚ගᏛ㢧ᚤ㙾࡜㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾㸦6(0㸧ࢆ⏝࠸࡚᩿㠃ࢆほᐹࡋࡓࠋ;⥺ࢥࣥࣆ࣮ࣗࢱࢺࣔࢢࣛࣇ࢕࣮㸦&7㸧ࢆ⏝࠸࡚  ḟඖᵓ㐀᝟ሗࢆ཰㞟ࡋࠊ ḟඖ⏬ീゎᯒࢯࣇࢺ࢙࢘࢔㸦9*678',20$;ࠊ9ROXPH*UDSKLFV㸧ࢆ⏝࠸࡚ṧ␃ẼᏍࡢᙧ≧ࢆゎᯒࡋࡓࠋ7L ࣉࣜࣇ࢛࣮࣒࡜ 0J7L 」ྜᮦᩱ࡟ࡘ࠸࡚ࠊẼᏍ⋡ࠊẼᏍᚄศᕸࠊ⌫ᙧᗘ࡞࡝ẼᏍᵓ㐀ࡢᐃ㔞ホ౯ࢆᐇ᪋
ࡋࡓࠋ

㸱㸬⤖ᯝ
ᅗ  ࡣࠊPP03D ࡢヨᩱ࡛࡯ࡰ᏶඲࡞ᾐ㏱ࡀ㐩ᡂ࡛ࡁࠊ⢊ᮎࢧ࢖ࢬࡀ኱ࡁ࠸ሙྜ࡟ࡢࡳᾐ㏱
Ḟ㝗ࡀほᐹࡉࢀࡿࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋᅗ  ࡣࠊ D PPP03D ࣉࣜࣇ࢛࣮࣒࡜ E  ↓ຍᅽᾐ㏱ᚋࡢ 0J7L 」ྜᮦᩱࡢ᩿㠃 20 ീ࡛࠶ࡿࠋẼᏍ⋡ࡣࠊ0J ࡢᾐ㏱࡟ࡼࡗ࡚ ࠿ࡽ ࡟࡞
ࡾࠊ0J ࡢᾐ㏱࡟ࡼࡾῶᑡࡋࡓࠋPP ࡢヨᩱ࡛ࡣḞ㝗ࡀ࡯࡜ࢇ࡝ほᐹࡉࢀ࡞࠿ࡗࡓࠋᾐ㏱ᚋ࡟ࡶᶵᵓࡀṧᏑࡋࡓࣉࣜࣇ࢛࣮࣒࡜」ྜᮦᩱࡢẼᏍ⋡ࢆᅗ  FG  ࡟♧ࡍࠋࣉࣜࣇ࢛࣮࣒ࡢẼᏍ⋡ࡣ෭㛫ᡂᙧᅽຊࡢቑຍ࡟ࡼࡗ࡚ῶᑡࡋࡓࡀࠊ7L ⢊ᮎࢧ࢖ࢬࡢῶᑡ࡟కࡗ࡚ࢃࡎ࠿࡞ኚ໬ࢆ♧ࡋࡓࠋᑐ− 144 −

↷ⓗ࡟ࠊ0J7L 」ྜᮦࡢẼᏍ⋡ࡣ 7L ⢊ᮎࢧ࢖ࢬࡢᙳ㡪ࢆᙉࡃཷࡅࡓࠋᅗ  ࡣࠊPP03D ヨᩱࡢ௦⾲ⓗ࡞Ḟ㝗ࡢ DE ஧ḟඖ᩿㠃ࡢ 6(0 ീ࡜ FG ୕ḟඖ ; ⥺ &7 ീ࡛࠶ࡿࠋḞ㝗ࡣࣉࣜࣇ࢛࣮
࣒ࡢ኱ࡁ࡞✵㝽࡟ṧ␃ࡋࡓ㸦ᅗ  DE 㸧ࠋࡇࡢṧ␃ẼᏍ࡛ࡣࠊࣉࣜࣇ࢛࣮࣒୰ࡢ⊃࠸ὶ㊰㸦㟷Ⰽ㸧ࡀᛴ⃭࡟ᗈࡃ࡞ࡿ㒊ศ࡛⏕ࡌࡿഴྥࡀぢࡽࢀࡓ㸦⥳Ⰽ㸧㸦ᅗ  F 㸧ࠋ↓ຍᅽᾐ㏱ᚋࠊࣉࣜࣇ࢛࣮࣒୰
ࡢ⊃࠸✵㝽ࡣ࡯࡜ࢇ࡝ 0J ࡛඘ሸࡉࢀࡓࡀࠊ
኱ࡁ࡞✵㝽ࡣ」ྜᮦᩱ୰ࡢṧ␃ẼᏍ࡜࡞ࡗࡓ㸦ᅗ  G㸧㸧ࠋᅗ  ␗࡞ࡿ 7L ⢊ᮎࢧ࢖ࢬࡢࣉࣜࣇ࢛࣮࣒࠿ࡽస〇ࡋࡓ 0J7L 」ྜᮦᩱࡢගᏛ㢧ᚤ㙾ീᅗ  PP03D D ࣉࣜࣇ࢛࣮࣒ E 」ྜᮦ
ᩱࡢ 20 ീ F ࣉࣜࣇ࢛࣮࣒ G 」ྜᮦᩱࡢẼᏍ⋡ᅗ  D 6(0 ࡜ E ;&7 ࡟ࡼࡿḞ㝗ࡢ  ḟඖホ౯
࡜ F ࣉ࣮ࣜ࢝ࢧ✵㝽 G 」ྜᮦᩱḞ㝗ࡢ  ḟඖࣞࣥࢲࣜࣥࢢ

㸲㸬ࡲ࡜ࡵ
7L ࣉࣜࣇ࢛࣮࣒ෆ࡬ࡢ⁐⼥ 0J ࡢ↓ຍᅽᾐ㏱࡟ࡼࡾ 7L0J 」ྜᮦᩱࢆ〇㐀ࡍࡿࣉࣟࢭࢫ㛤Ⓨࡢᇶ♏᳨ウࢆᐇ᪋ࡋࡓࠋ7L ࣉࣜࣇ࢛࣮࣒୰ࡢ✵㝽ᵓ㐀ࡀ⁐⼥ 0J ࡢ↓ຍᅽᾐ㏱ᚋࡢṧ␃ẼᏍ⋡࡟ཬࡰࡍᙳ㡪ࢆㄪᰝࡋࡓࠋ6(0 ࡜ ; ⥺ &7 ീ࠿ࡽࡣࠊḞ㝗ࡀ኱ࡁ࡞Ꮝ࡟␃ࡲࡿࡇ࡜ࡀほᐹࡉࢀࡓࠋ↓ຍ
ᅽᾐ㏱ᚋࠊᑠࡉ࠸✵㝽ࡣ 0J ࡛඘ሸࡉࢀࡓࡀࠊ኱ࡁ࡞✵㝽ࡣ࡯࡜ࢇ࡝඘ሸࡉࢀࡎ࡟ṧ␃ẼᏍ࡜࡞ࡗࡓࠋ」ྜᮦᩱ୰ࡢṧ␃ẼᏍ࡟ࡣࣉࣜࣇ࢛࣮࣒୰ࡢ⢊ᮎࢧ࢖ࢬࡀᙳ㡪ࡋࠊࣉࣜࣇ࢛࣮࣒୰࡟⢒኱࡞✵㝽ࡀ࠶ࡿ࡜ࠊࡑࡢ㒊ศࡣ」ྜᮦᩱ୰࡟ṧ␃ẼᏍ࡜࡞ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋ
㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧

− 145 −

इ୿Ⴈശጫ֪‫׉ׇ‬૛ถ֖֞ၟࡣ֩ ȕ ະ‫ؤ׽׸؂‬՛‫ب״׶׊ׇ֪פ‬஽ઞ֭፛ॺ৿Ⴗँ
ဪੜ་ॺӨ ቴ጖؈‫ب؜׭‬ଞ੄‫״بװ‬՛Ө Ө ଽଈ ᇌ౨㕱ӧ֮֗‫֪׀‬ᄞዿ‫ب״׶‬஽ઞ 7L$O9 7L ֪։փ֥ӣȕ ະ֭੫ँଭຍ֧֖֥৞ֽ‫׊׋‬؅‫ ؕכ׭׿‬9 ֭ฌैౌഞፘ֭㕸আ੫‫ב‬ཨே֧‫֋ח׬آ‬๒‫֥׀‬։‫׉‬ӣ౦඘֦֭ጺྫྷፘ‫֭֜׃‬अ६ᇥ၌֪৘֘‫׊‬དทॺ‫֮פ׮؟‬ઇ‫֥׀‬ஸփӧ֒‫ֽ׋‬
֦֪ 7L ஽ઞ֭࿃‫בँ׽׮ר‬ኬ౪֖֥ӣ7L ஽ઞᇈቨ֧റ 7L ᇈቨ֭௢஽໲‫ב‬ഞᄇମፍ֪ዿփ֥؅‫ؕכ׭׿‬ౚዿፘ‫ב‬ణଲ֖֞ශਊ 7L ஽ઞ֭็૱‫ב‬ଙ၀֖֥֌֞ӧସփহև‫֧׊‬ӣĮ ະ֧ ȕ ະ֭२੫ँଭຍ֦ց‫ ׊‬$O ֧ 9 ֭ვ஽ᄾጴ֭ଲ൛֪‫׉ׇ‬ఔፍ੫ဗ֭࿃ऀ֋ያ໐֔‫׊׋‬ӧ֦֜֒ӣ֒‫ֽ֦׋‬ጿ౤ඡ֪ᇀై֖֥փ֞ ȕ ະ֭‫ؤ׽׸؂‬՛‫פ‬ஓ່ँ֪ৰ֤֎ጿैஓ່็૱֪‫֭ؠ״ؖחء׉ׇ‬ౚዿፘ‫ב‬ణଲ֖֣֣ӣஸ੫ဗ֧ஸ࣊ต֋ፊጵ֖֞ᎃअ‫ب״׶‬஽ઞ֭ຕล‫ב‬ኬ౪֘ӧ֩։ӣ቎ଞ੄֪։֐‫ؤ׽׸؂׊‬՛‫פ‬ຎද‫ב‬զȕ ະࡊ࿊ँଭຍ֋Ⴕँ֖֞஛ಱະ֋ӣႌಱະ֦ց‫့׊‬ತ Į7L ଅ൩ጿै‫ב‬ᎌ໗࿨֪ᅇᆸ֖֞ຎදէ֧࿊ਟ֘‫׊‬ӧ֭֒‫ׇ‬օ֩஛ಱ ȕ ະ֊‫׈‬ถ‫ؤ׽׸؂׊‬՛‫פ‬ຎද֮ӣႨശጫथ࿘֪։փ֥ӣ਼፰थ࿘๶֪േ፰थ࿘‫ב‬ᆋइ֘‫֦֧֒׊‬፰ਯथ࿘‫ב‬ᆷ஽ँ֖֞ශ֞֩Ⴈശጫ೚ሓ֭࿪ዿ֪‫ׇ֢‬֥ಲଵ֘‫׊‬ӧ֔‫֪׈‬ӣࢂ྅ಀଫ։‫ֲׇ‬ष࿼આ֑ᅀ᎕ಀଫ֪‫׉ׇ‬อ࿨։‫ֲׇ‬၌࿨፛ॺၟต֭शื‫ב‬பփӣ‫ؤ׽׸؂‬՛‫פ‬ຎද֋፛ॺၟต୶එ֪ਸֻ֘ࢬ੽֪֣փ֥ணళ֖֞ӧ㕲ӧಀፍఢลሑሓ
ମፍᇈቨ֧֖֥റ 7L ᇈቨӡ‫بח׭ؖ‬૜ PӢӣ7L ஽ઞᇈቨӡ၍ PӢ‫ב‬മᅏ֖ӣፊೄ‫ב‬ഓፘᄾ  ֦უፘՔ௢஽֖֥ 7L$O9 ຎถ֊‫׊֩׈‬௢஽ᇈቨ‫ב‬മᅏ֖֞ӧ636 ൲ଅӡ൲ଅࣽဗ­ӣ࠽፛03Dӣಐ৖
PLQӣ෉઱ဗ3D ࡒऀӢ֪‫཮ࣅ׉ׇ‬ඡ൲ଅ໲ӡྞ૜ɖPPӣஸ֔ PPӢ‫ב‬ఢล֖ӣႨ৖࠽࣊इ୿ӡ࠽࣊ࣽဗ
­ӣ࠽ऀጴ Ӣ‫ב‬౮֖֞ӧ֭֒࠽࣊ఔ֪໴֖֥ӣኟಠ෨ )LJ ֪ಘ֘േ፰਼֧፰֭ᆷ஽थ࿘֊‫׊֩׈‬Ⴈശጫ‫ב‬౮֖֞ӧ֦֒֒ӣ෯፰ࣽဗ 7T ‫ב‬ᇥँ֘‫ ֦֧֒׊‬9 Ⴕँፚࡰ֭ Į7L ጿַ֭ᅇᆸ૛໺‫ב‬ฑ୞֖ӣኬ࿨֧֘‫׽׸؂׊‬‫ؤ‬՛‫פ‬ຎද‫ב‬૛ถ֖֞ӧ२ಀፍ֭ଅ൩ຎදशื֪֮ӣ;5'ӣ6(0('6(%6' ‫ב‬ዿփ֞ӧ‫ؤ׽׸؂‬՛‫ פ‬ȕ ະຎද֭࿊ፘँ֪֮ӣᄗಽဃ౤ຎถໂӡ&2032 ໂӢ֭बໂशื‫׼‬՛‫ב״‬ౚዿ֖֞ӧ֭֜఑ӣ‫بחט׼ؖ‬؊‫״ؠט‬։‫ןֲׇ‬՛،‫ץب؀‬ശጫ‫ב‬౮֖֥‫בׯי؃‬ൊੌ֘‫֧֒׊‬֦ຎද֭࿊ፘँ‫׼‬՛‫֭״‬ยဗ‫ב‬ஸ‫֞׀‬ӧ

)LJ7KHUPDOKLVWRU\LQVDPSOHSUHSDUDWLRQSURFHVVRIKRWUROOHG7L$O9DOOR\VYLDVLQWHULQJURXWH㕳ӧଅऐ։‫ֲׇ‬ணళӨ ๐֙ӣ२Ⴈശጫఔ֭ &2032 ໂ։‫ ֲׇ‬6(0('6 ᇀืଅऐ‫) ב‬LJ  ֪ಘ֘ӧ D 7T Ⴈശጫఔӡ:4 ෯፰ఔӢ֦֮ӣ9 Ⴕँፚࡰ֋࠽࣊ሑ୶։‫ྞֲׇ‬୪֘‫׊‬ሑ୶֭ፊሑ֪ໜఓ֖ӣP ֭ᆳ‫ב‬ಏ့֢֥ತ Į7L ጿै‫ב‬ᅇᆸ֖֞ຎද֋૛ถ֔‫֞׋‬ӧ֭֜ଢ଼ӣ7T ֭࿃ऀ֪ᄔփӣĮ7L ᇓઍଅ൩ጿ૜֋ઋ֊֪ໃ་֖ӣ9 Ⴕँፚࡰ֭ኜูጴӣᆳ֮༳ྔ֪ଲ൛֖֞ӧ֭֜ଅऐӣĮ7L ᇓઍଅ൩ጿ૜ӣ9 Ⴕँፚࡰ֭ኜูጴ֧ᆳ֮ӣ֜‫ ׋֝׋‬+77T ႨശጫఔӱPӣӣPӣ+77T ႨശጫఔӱPӣӣP ֧֢֩֞ӧ֔‫֪׈‬ӣ E 7Tӣ F 7T Ⴈശጫఔ֦֮ӣ9 Ⴕँፚࡰ֋့ತ Į7L ጿ‫ב‬ᅇᆸ֖֞ඡ໺‫ࡥב‬ಏ֖֣֣ӣ֭֜ኜูጴ֧ᆳ֭ଲ൛֪‫ ׉ׇ‬9 ถᇀ֭Ⴕँ
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಑֪ӣ‫ؤ׽׸؂‬՛‫פ‬ຎද֋ 7L ஽ઞ֭อ࿨։‫ֲׇ‬၌࿨፛ॺၟต֪ਸֻ֘ࢬ੽‫ྔב‬௮ָ֘֎ӣඛ֪֥ࣽࢂ྅ಀଫ։
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GHIRUPDWLRQRI7L$O9 +77T 㸦ඹྠ◊✲ศ㔝㸸」ྜ໬ᶵᵓᏛศ㔝㸧− 147 −

ۜ଒੷૜ଆ‫ܙ‬๑ͶΓΖονϱࡒ͹ࡠ੣ͳ‫ک‬Կ‫ߑؽ‬͹մ໎౨๼୉ָۜ଒ࡒྋ‫ॶڂݜ‬Յ޽ϕϫιη޽ָ‫ڂݜ‬෨໵ࢃ஦ ‫ݢ‬ଢ໪ద߶Φϋϩάʖ೦‫ݱ‬Ν༽͏ͱۜ଒ฆ຦Νમ୔దͶ༻༧‫͢ݽڿ‬ɼ੷૜ͤΖ͞ͳͲ  ࣏‫ߑݫ‬ଆରΝࡠ੣ͤΖ $GGLWLYH

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͹ࡠ੣Ͷૹ஖֋൅Ν‫؜‬Όͱ஭ྙ͢ͱखΕૌΞͲ͏ΖɽҲ๏ɼ෵߻Կ‫ָߑؽ‬෾໼͹ۛ౽‫گ‬दΔ͹ήϩʖϕͲͺɼฆ຦໸ۜ๑Ώ $0 Ν༽͏ͪονϱࡒͶ‫ͤؖ‬Ζ‫ڂݜ‬Ώ৷೘‫ݫܗ‬ોΝཤ༽ͪ͢߻ۜઅ‫ܯ‬Ͷͯ͏ͱଡ͚͹எ‫ݡ‬Ν༙͢ɼ༑Ηͪಝ੓Ν༙ͤΖονϱࡒྋ͹֋൅Ͷ੔ޯ͢ͱͪ͘ɽຌ‫Ͳڂݜ‬ͺɼྈ‫ڂݜ‬ήϩʖϕ͹‫ک‬ΊΝ‫͖͢׈‬ɼονϱࡒΝଲেͳͪۜ͢଒੷૜ଆ‫ܙ‬๑Ͷ‫ͱؖ͢‬ɼ৷೘‫ݫܗ‬ોΏ෈९෼‫ݫ‬ોɼฆ຦ࡠ੣๏๑ɼΦϋϩάʖ‫ݱ‬ʤుࢢϑʖϞ͕Γ;Ϫʖδʖʥ͹Ӫ‫ڻ‬Νർֳʀ௒ࠬ͢ɼ༑Ηͪྙָಝ੓Ν༙ͤΖονϱࡒ͹֋൅ͳ‫ک‬Կ‫ߑؽ‬͹մ໎Ν໪దͳͤΖɽຌ‫ڠ‬ಋ‫ݜ‬‫ڂ‬͹۫ରద͵‫ߴڂݜ‬໪ͳ͢ͱͺҐԾΝ‫ݗ‬౾ͤΖɽ  ଳ೦ονϱ߻ۜʤ7LʥͶ͕͜Ζ৷೘‫ݫ༻ݽܗ‬ો͹శՅͳ‫ک‬Կ‫ߑؽ‬  ९ 7L ‫ܧ‬Ͷ͕͜Ζ৷೘‫ݫ༻ݽ‬ોΏ )H ‫༻ݽ‬ͶΓΖ‫ک‬Կ‫ߑؽ‬  ॊཔ͹ 3UHPL[HG ฆ຦ͳ 35(3 ੣ 3UHDOOR\HG ฆ຦Ν༽͏ͪଆ‫ܙ‬ର͹ಝ੓ർֳ (%0 ͳ 6/0ʤ6HOHFWLYH/DVHU0HOWLQJʥ͹੣๑ʤ‫ౕྮٺ‬ʥ͹ࠫҡͶΓΖονϱ߻ۜ͹ಝ੓ർֳʤྭ7L2 ‫ܧ‬ʥ ೧ౕͺɼ‫ک‬Կ‫ߑؽ‬Ν໎Δ͖ͶͤΖͪΌͶਅ੧ंΔ͗खΕૌΞͲͪ͘஦੓ࢢյ઄Ν༽͏ͪૌ৭մੵΝଡ૮ૌ৭Ν༙ͤΖϠυϩ߻ۜͳ͢ͱ 1L ‫خ‬௔߻ۜ͹ҲͯͲ͍Ζ $OOR\ Ͷన༽͢ɼ݃ধ๏Ғ෾ාʤॄ߻ૌ৭ʥ
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Ȗ૮͹ੵड़Ν֮೟ͪ͢ɽਦ  Ͷɼ஦੓ࢢյ઄υʖνͶଲ͢ͱࣰࢬͪ͢ 5LHWYHOG7H[WXUH մੵͶΓΕಚΔΗͪӀ௃ร‫ܙ‬઴͹ $OOR\ ଆ‫ܙ‬ର͹ Ȗ )&& ૮͹‫఼ۅ‬ਦΝࣖͤɽଆ‫ֱౕܙ‬͹ҩ͏Ͷ‫ؖ‬ΚΔͥ Ȗ ૮͹>@๏޴͗ଆ‫ܙ‬๏޴ͳฑߨͶ‫ܙ‬੔ͪ͢‫߻ॄ͏ک‬ૌ৭֮͗೟͠Ηͪɽ͖͢͢͵͗Δɼࢾ‫ݩ‬ฤͲͺ໾һͲࣖͤΓ͑ͶҲ෨Ͷ‫͠ࡱ؏͗੷ॄ͏ک‬Ηͪ͹Ͷଲ͢ɼࢾ‫ݩ‬ฤ
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ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁ෵߻Կ‫ָߑؽ‬෾໼ʥ− 149 −

㉸㧗ᙇຊ㗰ᯈ࡜࢔࣑ࣝࢽ࣒࢘ྜ㔠ᯈࡢ᥋╔๣ే⏝ࢡࣜࣥࢳࣥࢢ᥋ྜ࡟࠾ࡅࡿ᥋ྜᛶ࡜྾཰࢚ࢿࣝࢠ࣮ࡢྥୖ
Ᏻ㒊ὒᖹ㸦㇏ᶫᢏ⛉኱㸧㸪ᒣෆ෽ே㸦㇏ᶫᢏ⛉኱࣭㝔㸧㸪㯞ᑀ⥴㸦኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ㸧
1. ࡣࡌࡵ࡟
㏆ᖺ㸪⮬ື㌴ᴗ⏺࡛ࡣ㌴య㍍㔞໬ࢆ┠ⓗ࡜ࡋࡓ㧗ᙇຊ㗰ᯈࡸ࢔࣑ࣝࢽ࣒࢘ྜ㔠ᯈࡢࡼ࠺࡞㧗ẚᙉᗘᯈᮦࡢ฼⏝ࡀᣑ኱ࡋ࡚࠾
ࡾ㸪㧗ẚᙉᗘᯈᮦࡢ᥋ྜࡀ㔜せ࡞ᢏ⾡ⓗㄢ㢟࡜࡞ࡗ࡚࠸ࡿ㸬࣎ࣝࢺࢼࢵࢺ㸪ࢭࣝࣇࣆ࢔ࢫࣜ࣋ࢵࢺ(௨ୗ SPR)࡟ࡼࡿ᥋ྜ࡛ࡣ
⥾⤖せ⣲࡟ࡼࡿ㔜㔞ࡸࢥࢫࢺࡢቑຍ㸪⁐᥋࡟ࡼࡿ᥋ྜ࡛ࡣᯈᮦ
ࡢ␗࡞ࡿ⼥Ⅼ㸪⬤ᙅ࡞㔠ᒓ㛫໬ྜ≀ࡢไᚚ 1)ࡀࡑࢀࡒࢀㄢ㢟࡜࡞ࡿ㸬ࢡࣜࣥࢳࣥࢢ᥋ྜ࡛ࡣࣃࣥࢳ࡜ࢲ࢖ࢆ⏝࠸࡚ᯈᮦࢆኚᙧࡉࡏ
࡚␗✀ᮦᩱࢆ᥋ྜ࡛ࡁࡿࡀ㸪᥋ྜᙉᗘࡀ኱ࡁࡃ࡞࠸ࡇ࡜ࡶ࠶ࡿ
2)㸬ࡑࡇ࡛㸪᥋╔๣ࢆే⏝ࡍࢀࡤ㸪⭉㣗ᛶ࡜᥋ྜᙉᗘࡀྥୖࡍ
ࡿࡔࡅ࡛࡞ࡃ㸪᥋╔๣ࡢࡳࡼࡾࡶ྾཰࢚ࢿࣝࢠ࣮ࡢྥୖࡀぢ㎸ࡵࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪౑⏝ࡍࡿ᥋╔๣ࡣ㸪୍⯡ⓗ࡟㧗⢓ᗘ࡛࠶ࡾ㸪₶⁥≉ᛶࡀⰋࡃ࡞ࡾᦶ᧿ࡀపୗࡋ㸪ୗᯈࡢὶືࡀቑຍࡋ࡚
ࢡࣜࣥࢳࣥࢢ᥋ྜᛶࡀపୗࡍࡿࡇ࡜ࡀ࠶ࡾ 3)㸪ᨵၿࡍࡿ᪉ἲࡀ
ồࡵࡽࢀ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪᥋╔๣ే⏝ࢡࣜࣥࢳࣥࢢ᥋ྜ࡟࠾ࡅࡿ᥋╔๣࡟⢏Ꮚࢆῧຍࡋ࡚᥋╔๣ࡢ₶⁥ᛶࢆపῶࡉࡏ㸪᥋ྜᛶࢆྥୖࡉࡏ
ࡓ㸬ࡲࡓ㸪᥋ྜ㒊ࡢ᥋ྜᙉᗘ࡜࢚ࢿࣝࢠ࣮ࢆ ᐃࡋࡓ㸬

2. ᥋╔๣ే⏝ࢡࣜࣥࢳࣥࢢࡢ᥋ྜ᮲௳
᥋╔๣ే⏝ࢡࣜࣥࢳࣥࢢࡢ᥋ྜ᮲௳ࢆᅗ 1 ࡟♧ࡍ㸬ࣃࣥࢳ࡟ᢲ㎸ࡲࢀࡓᮦᩱࡀ༙ᚄ᪉ྥ࡟ὶࢀ㸪࢖ࣥࢱ࣮ࣟࢵࢡ࡜࿧ࡤࢀࡿ
ᘬࡗ࠿࠿ࡾࢆᙧᡂࡋ࡚᥋ྜࡍࡿ㸬ᮏሗ࡛ࡣ㸪ୖᯈ࡟᪤ሗ 4)ࡼࡾࡶ㧗ᙉᗘ࡞ᯈཌ 1.2 mm ࡢ 980 MPa ⣭㗰ᯈ㸪ୗᯈ࡟ᯈཌ 1.5 mm
ࡢ A5052-H34 ࡢ᥋ྜࢆᑐ㇟࡜ࡋࡓ㸬ୖୗᯈ㛫࡟ 1 ᾮຍ⇕◳໬ᆺ࢚࣏࢟ࢩ᥋╔๣ࢆሬᕸࡋ㸪ࢲ࢖ᚄ࡜ࢲ࢖῝ࡉࡣࡑࢀࡒࢀ 8.5 mm
࡜ 1.5 mm ࡟࠾࠸࡚ 5.2 mm ࡢࣃࣥࢳᚄࢆ 3.6 mm ᢲࡋ㎸ࢇࡔ㸬᥋╔๣㸦ࢭ࣓ࢲ࢖ࣥ〇㸪EP138㸧ࢆሬᕸ㔞 m =111~333 g/m2 ࡛ሬᕸࡋ㸪᥋ྜᚋ࡟ ႏ࡛ 20 ศࡢຍ⇕㸪⮬↛✵෭ࡋ࡚◳໬ࡉࡏࡓ㸬ࡗ࡚ୗᯈࡢᮦᩱὶືࢆపୗࡉࡏࡓ㸬⢏Ꮚࡢῧຍ᮲௳ࢆ⾲ 2 ࡟♧ࡍ㸬᥋ྜ㒊ࡢᘬᙇࡏࢇ᩿࡜๤㞳ᙉᗘࡢࣂࣛࣥࢫࡀྲྀࢀࡓ᥋╔๣ᒙཌࡉࡣ୍⯡࡟ 0.1 mm ࡛࠶ࡾ 5)㸪⢏Ꮚࡢᖹᆒ⢏ᚄ d ࢆࡑࡢ௜㏆ࡢ ȝm ࡜ࡋ㸪௚࡟ ȝm㸪ȝm ࢆ⏝࠸࡚ῧຍ๭ྜ c = 20~50
wt%ࡢ⠊ᅖ࡛ῧຍࡋ㸪ຠᯝࢆ᳨ドࡋࡓ㸬⾲㻝㻥㻤㻜㻹㻼㼍 ⣭㗰ᯈ䛸䜰䝹䝭䝙䜴䝮ྜ㔠ᯈᮦ䛾≉ᛶ⾲ 㻞 ᥋╔๣䛻ῧຍ䛧䛯⢏Ꮚ

3. ࢡࣜࣥࢳࣥࢢ᥋ྜ࡟ཬࡰࡍ⢏Ꮚῧຍࡢຠᯝ
3.1 ᥋ྜᛶ࡟ཬࡰࡍ⢏Ꮚῧຍ᥋╔๣ࡢᙳ㡪ሬᕸ㔞 m = 167 g/m2 ࡟࠾ࡅࡿ᥋ྜᛶ࡟ཬࡰࡍ⢏ᚄ࡜ῧຍ๭ྜ
ࡢᙳ㡪ࢆᅗ 2 ࡟♧ࡍ㸬࠸ࡎࢀࡢ⢏ᚄ࡟࠾࠸࡚ࡶ㐺ษ࡞ῧຍ๭ྜ
࡟ࡼࡾ c = 0 wt%ࡼࡾ᥋ྜᛶࡣྥୖࡋ࡚࠾ࡾ㸪d = 97 ȝm ࡛ࡣ㸪c
= 20~50 wt%࡛ୖᯈ๭ࢀࡢⓎ⏕ࡀ 1 Ⅼࡢࡳ࡜࡞ࡗ࡚࠾ࡾ᥋ྜᛶࡀ㧗࠸㸬ᅗ 㻞㻌 㻌 㼙 㻩㻌㻝㻢㻣㻌㼓㻛㼙㻞 䛻䛚䛡䜛᥋ྜᛶ䛻ཬ䜌䛩⢏ᚄ䛸ῧຍ๭ྜ䛾ᙳ㡪ሬᕸ㔞 m = 167 g/m2㸪⢏ᚄ d = 97 ȝm ࡟࠾ࡅࡿᯈ㛫ᦶ᧿ಀᩘ࡟

(a) ࢡࣜࣥࢳࣥࢢ࡟ࡼࡿ᥋ྜ(b) ᥋ྜ᮲௳ᅗ 㻝 ᥋╔๣ే⏝䜽䝸䞁䝏䞁䜾᥋ྜ䛾᮲௳ཬࡰࡍῧຍ๭ྜࡢᙳ㡪ࢆᅗ 3 ࡟♧ࡍ㸬ࡋࡈࡁຍᕤ⿦⨨࡟ࡼࡾࢲ࢖ࢆ 980 MPa ⣭㗰ᯈ㸪ࡋࡈ࠿ࢀࡿ࢔࣑ࣝࢽ࣒࢘ྜ㔠ᯈ࡜ࡋ࡚㸪ᘬᙇヨ㦂㸪⢒ࡉ ᐃࡼࡾᚓࡓྛᯈᮦࡢ≉ᛶࢆ⾲ 1 ࡟♧ࡍ㸬980
MPa ⣭㗰ᯈࡣࡵࡗࡁ㗰ᯈ࡛࠶ࡾ㸪ࡵࡗࡁཌࡉࡣ 90 ȝm ࡛࠶ࡿ㸬᥋╔๣࡟࢞ࣛࢫࣅ࣮ࢬࢆῧຍࡋ࡚㸪⢏Ꮚ࡜ᯈࡢ᥋ゐ᢬ᢠ࡟ࡼ࢔࣑ࣝࢽ࣒࢘ྜ㔠ᯈୖ࡟⢏Ꮚࢆῧຍࡋࡓ᥋╔๣ࢆሬᕸࡋ㸪ࡋࡈࡁຍᕤⲴ㔜࡜ᯈཌῶᑡ⋡ࡼࡾᦶ᧿ಀᩘࢆ⟬ฟࡋࡓ㸬ῧຍ๭ྜ c= 0 wt%࡛ࡣᯈ㛫ࡢᦶ᧿ಀᩘࡀ᥋╔๣࡞ࡋ࡜ẚ㍑ࡋ࡚ᑠࡉࡃ࡞ࡗ

− 150 −

࡚࠸ࡿ㸬ࡲࡓ㸪⢏Ꮚῧຍ๭ྜࡀቑຍࡍࡿ࡜ᦶ᧿ಀᩘࡣቑຍࡋ㸪᥋╔๣࡞ࡋ࡟㏆ࡃ࡞ࡿ㸬ᅗ 㻡㻌 㻌 㼐 㻩㻌㻥㻣㻌䃛㼙䠈㼏 㻩㻌㻞㻜㻌㼣㼠㻑䛻䛚䛡䜛ᘬᙇ䛫䜣᩿Ⲵ㔜䛻ཬ䜌䛩ሬᕸ㔞䛾ᙳ㡪ᅗ 㻟㻌 㻌 㼙 㻩㻌㻝㻢㻣㻌㼓㻛㼙㻞䠈㼐 㻩㻌㻥㻣㻌䃛㼙 䛻䛚䛡䜛ᯈ㛫ᦶ᧿ಀᩘ䛻ཬ䜌䛩ῧຍ๭ྜ䛾ᙳ㡪
3.2 ᥋ྜᙉᗘ࡟ཬࡰࡍ⢏Ꮚῧຍ᥋╔๣ࡢᙳ㡪᥋ྜᙉᗘࡣ㸪᥋ྜࡀ࡛ࡁࡓヨ㦂∦࡟ᑐࡋ࡚ᘬᙇࡏࢇ᩿ヨ㦂ࢆ⾜ࡗࡓ㸬ሬᕸ㔞 m = 167 g/m2㸪 ⢏ᚄ d = 97 ȝm ࡟࠾ࡅࡿᘬᙇࡏࢇ
᩿Ⲵ㔜࡜྾཰࢚ࢿࣝࢠ࣮࡟ཬࡰࡍῧຍ๭ྜࡢᙳ㡪ࢆᅗ 4 ࡟♧ࡍ㸬(a)ࡼࡾ᥋╔๣◳໬๓㸪◳໬ᚋ࡜ࡶ࡟࠸ࡎࢀࡢῧຍ๭ྜ࡟࠾࠸࡚
ࡶ୍ᐃࡢᘬᙇࡏࢇ᩿Ⲵ㔜ࢆ♧ࡋ࡚࠾ࡾ㸪ຍ⇕◳໬ᚋ࡜᥋╔๣༢యࡣ㏆࠸್ࢆ♧ࡋ࡚࠸ࡿࡇ࡜࠿ࡽ᥋╔๣࡟ࡼࡿᙉᗘࡀ୺࡛࠶ࡿ㸬ᘬᙇࡏࢇ᩿Ⲵ㔜ࢆ A5052-H34 ࡢ◚᩿Ⲵ㔜࡛㝖ࡋࡓ್࡛ᐃ⩏ࡋࡓ⥅ᡭຠ⋡ࢆぢࡿ࡜㸪ຍ⇕◳໬๓࡛ᖹᆒ 27.4 %㸪ຍ⇕◳໬ᚋ࡛ᖹᆒ 65.0 %࡜࡞ࡗࡓ㸬ࡲࡓ㸪(b)ࡼࡾ᥋╔๣◳໬ᚋࡢ྾཰࢚ࢿࣝࢠ
࣮ࡣ᥋╔๣༢యࡼࡾ㧗࠸್ࢆ♧ࡋ࡚࠸ࡿ㸬⢏ᚄ d = 97 ȝm㸪ῧຍ๭ྜ c = 20 wt%࡟࠾ࡅࡿ྾཰࢚ࢿࣝࢠ࣮
࡟ཬࡰࡍሬᕸ㔞ࡢᙳ㡪ࢆᅗ 6 ࡟♧ࡍ㸬᥋╔๣༢య࠾ࡼࡧຍ⇕◳໬ᚋࡢ᥋ྜ㒊ࡢ྾཰࢚ࢿࣝࢠ࣮ࡣሬᕸ㔞࡜࡜ࡶ࡟ቑຍࡋ࡚࠸ࡿ㸬ࡲࡓ㸪ຍ⇕◳໬ᚋࡢ᥋ྜ㒊ࡣ᥋╔๣༢యࡼࡾᖹᆒ࡛ 1.9 ಸ⛬ᗘ㧗ࡃ࡞ࡗࡓ㸬ᅗ 㻢㻌 㻌 㼐 㻩㻌㻥㻣㻌䃛㼙䠈㼏 㻩㻌㻞㻜㻌㼣㼠㻑䛻䛚䛡䜛྾཰䜶䝛䝹䜼䞊䛻ཬ䜌䛩ሬᕸ㔞䛾ᙳ㡪

4. ࠾ࢃࡾ࡟

(a) ࢡࣜࣥࢳࣥࢢ࡟ࡼࡿ᥋ྜ(b) ᥋ྜ᮲௳ᅗ 㻠㻌 㻌 㼙 㻩㻌㻝㻢㻣㻌㼓㻛㼙㻞䠈㼐 㻩㻌㻥㻣㻌䃛㼙 䛻䛚䛡䜛ᘬᙇ䛫䜣᩿Ⲵ㔜䛸྾཰䜶䝛䝹䜼䞊䛻ཬ䜌䛩ῧຍ๭ྜ䛾ᙳ㡪

ୖᯈ 980MPa ⣭㗰ᯈ࡟࠾ࡅࡿ᥋╔๣ే⏝ࢡࣜࣥࢳࣥࢢ᥋ྜ࡛
᥋╔๣࡟⢏Ꮚࢆῧຍࡋࡓᐇ㦂ࢆ⾜࠸㸪௨ୗࡢ▱ぢࢆᚓࡓ㸬1) ȝm ⢏ᚄࡢ࢞ࣛࢫࣅ࣮ࢬࢆ 20~50 wt%࡛ῧຍࡋࡓ᥋╔๣࡟ࡼࡾୖᯈࡢ๭ࢀࡀᢚไ࡛ࡁ㸪᥋ྜᛶࡀᨵၿ࡛ࡁࡓ㸬2) ⢏Ꮚῧຍ๭ྜࡀ 0 wt%࡟࠾ࡅࡿᦶ᧿ಀᩘࡣ㸪᥋╔๣࡞ࡋ࡜ẚ㍑ࡋ࡚ᑠࡉࡃ㸪97 ȣm ⢏ᚄࡢ࢞ࣛࢫࣅ࣮ࢬࡢῧຍ๭ྜ
ࡢቑຍ࡜࡜ࡶ࡟ቑຍࡋ㸪᥋╔๣࡞ࡋ࡟㏆ࡃ࡞ࡗࡓ㸬3) ᥋ྜ㒊ࡢⲴ㔜࡟⢏Ꮚࡢῧຍ๭ྜࡣ㛵ಀࡏࡎ㸪ሬᕸ㔞ࡣ୍ᐃ㔞ࡲ࡛ቑຍࡍࡿࡀࡑࢀ௨ୖ࡛ࡣᴫࡡ୍ᐃ࡜࡞ࡗࡓ㸬4) ⢏Ꮚࢆῧຍࡋࡓ᥋╔๣ే⏝ࢡࣜࣥࢳࣥࢢ᥋ྜ㒊ࡢ྾཰࢚ࢿ
ࣝࢠ࣮ࡣ㸪᥋╔๣ࡢࡳ࡜ࡃࡽ࡭࡚ 1.9 ಸ⛬ᗘ኱ࡁࡃ࡛ࡁࡓ㸬⢏ᚄ d = 97 ȝm㸪ῧຍ๭ྜ c = 20 wt%࡟࠾ࡅࡿᘬᙇࡏࢇ᩿Ⲵ㔜࡟ཬࡰࡍሬᕸ㔞ࡢᙳ㡪ࢆᅗ 5 ࡟♧ࡍ㸬᥋ྜᚋࡢ᥋╔๣㔞ࡣ㸪᥋ྜ๓ࡢヨ㦂∦࡜㸪᥋ྜᚋ࡟᤼ฟࡉࢀࡓ᥋╔๣ࢆᣔࡁྲྀࡗࡓヨ㦂∦ࡢ㔜㔞ࡢᕪ࡛࠶ࡾ㸪m = 222 g/m2 ௨㝆ࡣ୍ᐃ࡟ಖࡓࢀ࡚࠸ࡿ㸬ᘬᙇࡏࢇ᩿Ⲵ㔜ࡣ m = 167 g/m2 ࡲ࡛ቑຍࡋ࡚㸪௨㝆ࡣ୍ᐃ࡛࠶
ࡿ㸬ࡲࡓ㸪ྠࡌᯈ⤌ࡢ SPR ࡜ྠ➼ࡢᙉᗘࢆᚓ࡚࠸ࡿ㸬

ཧ⪃ᩥ⊩
1)
2)
3)
4)
5)

A. Hirose et al. : Mater. Sci. Forum, 475-479 (2005), 349-352.
Ᏻ㒊࡯࠿㸸ረᛶ࡜ຍᕤ, 51-589 (2010), 141-145.
Y. Ma et al. : J. Mater. Process. Technol., 305 (2022), 117602.
Ᏻ㒊࡯࠿㸸2021 ᖺረຍ᫓ㅮㄽ (2021), 277-278.
ཎ㈡࡯࠿㸸⮬ື㌴㍍㔞໬ࡢࡓࡵࡢ᥋╔᥋ྜධ㛛, (2015), 146149.
㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ゎᯒᏛศ㔝㸧− 151 −

⁐᥋ຊᏛၥ㢟࡟࠾ࡅࡿࢹࢪࢱࣝࢶ࢖ࣥ࡟㛵ࡍࡿ◊✲኱㜰බ❧኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉ ⏕ᓥ୍ᶞ㸪ᰘཎṇ࿴኱㜰኱Ꮫ࣭᥋ྜ⛉Ꮫ◊✲ᡤ    㯞 ᑀ⥴    1㸬ㅖゝィ ࡟ࡼࡿゎᯒࡢ࢔ࢵࣉࢹ࣮ࢺࢆ⾜࠺ᡭἲ࡜ࡋ࡚㏆ᖺὀ┠ࡉࢀ࡚࠸ࡿᢏ⾡࡟ࢹࢪࢱࣝࢶ࢖ࣥᢏ⾡ࡀ࠶ࡿ㸬ࢹࢪࢱࣝࢶ࢖ࣥ࡜ࡣ㸪⌧ᐇ✵㛫࠿ࡽᚓࡽࢀࡓࢹ࣮ࢱࢆᇶ࡟㸪ࢹࢪࢱࣝ✵㛫ୖ࡟཮Ꮚ࡜࡞ࡿࣔࢹࣝࢆసᡂࡋ㸪ィ ୙ྍ⬟࡞㡿ᇦࡢண ࡞࡝࡟ά⏝ࡉࢀ࡚࠸ࡿᢏ⾡࡛࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪㓄⟶⁐᥋ᵓ㐀≀ࡢࢹࢪࢱࣝࢶ࢖ࣥࢆᵓ⠏ࡍࡿࡓࡵ࡟㸪ࢹ࣮ࢱྠ໬ᡭἲ࡜ FEM ࢆ⤫ྜࡋࡓࢩࢫࢸ࣒ࢆ㛤Ⓨࡋࡓ㸬㛤Ⓨᡭἲࡢࣟࣂࢫࢺᛶ࡟ࡘ࠸᳨࡚ウࡍࡿࡓࡵ࡟㸪ィ ⤖ᯝ࡟✀ࠎࡢㄗᕪࡀྵࡲࢀࡿሙྜ
ࢆ᝿ᐃࡋ㸪ࡑࡢሙྜ࡟࠾ࡅࡿ㛤Ⓨᡭἲࡢ᥎ᐃᣲື࡟ࡘ࠸᳨࡚ウࡍࡿ㸬௨ୖࡢ᳨ウࢆ㏻ࡋ࡚㸪㛤Ⓨᡭἲࡢ㓄⟶⁐᥋ᵓ㐀≀࡟࠾ࡅࡿຊᏛⓗ≧ែࡢ᥎ᐃ࡬ࡢ㐺⏝ᛶࢆ♧ࡍ㸬
2. ࢹ࣮ࢱྠ໬ᢏ⾡࡟ࡼࡿ≧ែ᥎ᐃࢩࢫࢸ࣒
ᮏ◊✲࡛ࡣ㸪࢔ࣥࢧࣥࣈ࣐ࣝ࢝ࣝࣥࣇ࢕ࣝࢱ(EnKF)ࢆ⏝࠸࡚ࢹ࣮ࢱྠ໬ࢆ⾜࠺ࡓࡵ࡟㸪Fig. 1 ࡟♧ࡍࢩࢫࢸ࣒ࢆᵓ⠏ࡋࡓ㸬ྠᅗ࡟♧ࡍࡼ࠺࡟㸪ᮏࢩࢫࢸ࣒࡛ࡣ㸪ࡲࡎ㸪࢔ࣥࢧࣥࣈࣝண ࢆ⾜࠺ࡓࡵ࡟㸪࢔ࣥࢧࣥࣈ
࣓ࣝࣥࣂ࣮ᩘࡢศࡔࡅึᮇ್ࢆࡤࡽࡘ࠿ࡏࡓࢹ࣮ࢱࢭࢵࢺࢆసᡂࡋ㸪ྛ࢔ࣥࢧࣥࣈ࣓ࣝࣥࣂ࣮࡟ࡘ࠸࡚ࡢ
FEM ゎᯒ࡟ࡼࡿண ࢆᐇ᪋㸪ィ ࢹ࣮ࢱ࡟➼౯ࡍࡿ㔞ࢆ FEM ண ⤖ᯝ࠿ࡽ⟬ฟࡋ㸪ࡇࢀ࡜ィ ࢹ࣮ࢱࡼࡾ㸪
ᘧ(1)࡟ࡼࡾࣇ࢕ࣝࢱ㐺⏝ᚋࡢゎᯒ್ࢆồࡵ࡚࠸ࡿ㸬(1)

ࢄ௔ = ࢄ௣ + ۹(ࢅ௢ + ࡴࢄ௣ )㻵㼚㼜㼡㼠ࡇࡇ࡛㸪ࢄࡣ⣔ࡢ≧ែࢆ⾲ࡋࡓ࣋ࢡࢺࣝ(≧ែኚᩘ࣋ࢡࢺࣝ)ࢆ⾲㻱㼤 㼜㼑㼞 㼕 㼙 㼑㼚㼠 㼍 㼘㼟㼠 㼞㼍 㼕 㼚㻌㼐㼍㼠 㼍 㻌㼍㼠 㻌㼙 㼑㼍 㼟㼡㼞㼑㼙㼑㼚㼠 㻌㼜㼛㼕 㼚㼠ࡋ㸪۹ࡣ࣐࢝ࣝࣥࢤ࢖ࣥ㸪ࢅࡣィ ࢹ࣮ࢱࢆ୪࡭ࡓ࣋ࢡࢺࣝ(ィ࣋ࢡࢺࣝ)㸪ࡴࡣ≧ែኚᩘ࣋ࢡࢺࣝࢆィ ࢹ࣮ࢱ࡟➼౯ࡍࡿ㔞࡟
ኚ᥮ࡍࡿ₇⟬Ꮚ(ほ ⾜ิ)࡛࠶ࡿ㸬ࡲࡓ㸪ྛ࣋ࢡࢺࣝࡢྑ௜ࡁࡢ
ܽ㸪‫݌‬㸪‫ࡣ݋‬㸪ࡑࢀࡒࢀ㸪ゎᯒ(assimilation)㸪ண (prediction)㸪
ィ (observation)ࢆ⾲ࡍ㸬ࡇࡇ࡛㸪ゎᯒࡣࣇ࢕ࣝࢱ㐺⏝ᚋࡢ್㻼㼞 㼛 㼜 㼛 㼟 㼑㼐 㻌㼟 㼥 㼟 㼠 㼑㼙㻹㼍 㼗㼑㻌㼑㼚㼟㼑㼙 㼎㼘 㼑㻌㼙 㼑㼙 㼎㼑㼞㼟㻔 㼐㼕 㼒 㼒 㼑㼞 㼑㼚㼠 㻌㼘 㼛㼍 㼐㼕 㼚㼓 㻌㼏㼛㼚㼐㼕 㼠 㼕 㼛㼚㻕㻱㼚㼟㼑㼙 㼎㼘 㼑㻲㻱㻹 㻌㼍 㼚㼍 㼘 㼥 㼟㼕 㼟ࢆ㸪ண ࡣ FEM ࡞࡝࡟ࡼࡿண ࢆព࿡ࡍࡿ㸬ࡇࡢࡼ࠺࡟㸪EnKF ࡛ࡣ㸪࢔ࣥࢧࣥࣈ࣓ࣝࣥࣂ࣮ᩘࡢศࡔࡅ㠀㻭㼚㼍 㼘 㼥 㼦 㼑㼐㻌㼟㼠 㼞㼍 㼕 㼚㻌㼐㼍㼠 㼍 㻌㼍㼠 㻌㼙 㼑㼍 㼟㼡㼞㼑㼙㼑㼚㼠 㻌㼜㼛㼕 㼚㼠㻔 㼍 㼘 㼘 㻌㼙 㼑㼙 㼎㼑㼞 㼟㻕⥺ᙧ FEM ゎᯒࢆᐇ⾜ࡍࡿᚲせࡀ࠶ࡾ㸪ࡇࢀ࡟せࡍࡿィ⟬᫬㛫ࡀ࣎ࢺࣝࢿࢵࢡ࡜࡞ࡾᚓࡿࡇ࡜࠿ࡽ㸪ⴭ⪅ࡽࡀ㛤Ⓨࡋ࡚࠸ࡿ㧗㏿
FEM ゎᯒᡭἲ࡛࠶ࡿ⌮᝿໬㝧ゎἲ FEM ࢆ⏝࠸ࡓ㸬ࡇࢀࢆィ㻰㼍㼠 㼍 㻌㼍 㼟㼟㼕 㼙 㼕 㼘 㼍㼠 㼕 㼛㼚ࢹ࣮ࢱࡢ᫬้Ṕ࡟ᑐࡋ࡚㐺⏝ࡍࡿࡇ࡜࡛㸪㏲ḟⓗ࡟ᵓ㐀≀ࡢຊ㼁㼜㼐㼍㼠 㼑㼐㻌㼑㼚㼟㼑㼙 㼎㼘 㼑㻌㼙 㼑㼙㼎㼑㼞㼟㻌Ꮫⓗ࡞≧ែࢆ᥎ᐃࡍࡿ㸬㻭㼟㼟㼕 㼙 㼕 㼘 㼍㼠 㼑㼐㻌㼘 㼛㼍 㼐㼕 㼚㼓 㻌㼏㼛㼚㼐㼕 㼠 㼕 㼛㼚

3. ᥎ᐃ⤖ᯝ㻹㼑㼍 㼟㼡㼞 㼑㼙 㼑㼚㼠 㻌㼒 㼕 㼚㼕 㼟㼔㼑㼐㻫㻺㻻ᮏ᳨ウ࡛⏝࠸ࡓゎᯒࣔࢹࣝࢆ Fig. 2 ࡟♧ࡍ㸬ᮏゎᯒࣔࢹࣝࡣ㸪㼅㻱㻿㻲㼕 㼚㼕 㼟㼔㻌㼍 㼘 㼘

3 ࠿ᡤࡢ⁐᥋㒊ࢆ᭷ࡍࡿ㓄⟶ᵓ㐀ࡢ࢚ࣝ࣎㒊ࢆᶍࡋ࡚࠸ࡿ㸬ᶍᨃィ ࢹ࣮ࢱࡢసᡂࡢࡓࡵ࡟㓄⟶ࣔࢹࣝ࡟ࡣෆᅽ࠾ࡼࡧ᭤ࡆⲴ
㔜ࢆ㈇Ⲵࡋ㸪୍ᐃ᫬㛫ᚋ࡟㝖Ⲵࡍࡿࡶࡢ࡜ࡋࡓ㸬
Fig. 3 ࡟Ⲵ㔜㈇Ⲵ᫬ࡢ┦ᙜᛂຊศᕸࢆ♧ࡍ㸬ᅗ୰ࡢᯟ⥺ࡣኚᙧ๓ࡢ㓄⟶ࡢᙧ≧ࢆ♧ࡋ࡚࠾ࡾ㸪ኚᙧಸ⋡ࡣ 50 ಸ࡟ᣑ኱ࡋ࡚♧− 152 −

㻻㼡 㼠 㼜 㼡 㼠㻯㼞 㼑㼑㼜㻌㼐㼍 㼙 㼍 㼓 㼑㻌㼙 㼍 㼜Fig. 1 EnKF and FEM coupling
estimation system.

Fig. 3 Predicted equivalent stress for pseudoF

Fig. 2 Analysis model.
Fig
model

measurement.

Fig. 4 Comparison of strain obtained byestimation and pseudo-measurement.

Fig.
i 5 Distribution
i ib i off estimatedid fatigue
f i
life.
lif

ࡋ࡚࠸ࡿ㸬Fig. 3 ࡼࡾ㸪᭤ࡆⲴ㔜ࡀ㈇Ⲵࡉࢀ࡚࠸ࡿධཱྀഃࡢኚᙧ㔞ࡀ኱ࡁ࠸ࡇ࡜ࡀࢃ࠿ࡿ㸬
Fig. 4 ࡣ㸪ධຊࡋࡓࡦࡎࡳࡢ␲ఝィ ࢹ࣮ࢱ࡜㸪᥎ᐃ⤖ᯝ࡜ࡋ࡚ᚓࡽࢀࡓィ ⟠ᡤࡢࡦࡎࡳࡢᒚṔ࡛࠶ࡿ㸬ྠᅗࡼࡾ㸪ᶍᨃィ ࢹ࣮ࢱ࡜ࡋ࡚⏝࠸ࡓ඲࡚ࡢ఩⨨࡛Ⰻዲ࡟≧ែࢆ᥎ᐃ࡛ࡁ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬
Fig. 5 ࡟࢚ࣝ࣎ฟཱྀ㏆ഐࡢ HAZ 㒊ෆ㠃ࡢࢡ࣮ࣜࣉ⑂ປᑑ࿨ศᕸࡢ᥎ᐃ⤖ᯝࢆ♧ࡍ㸬ྠᅗ࡛ࡣ㸪ィ ್࡟
10㸣ࡢ࣍࣡࢖ࢺࣀ࢖ࢬ࡜ࣂ࢖࢔ࢫࣀ࢖ࢬࡀྵࡲࢀࡿሙྜࢆ௬ᐃࡋࡓ㸬Fig. 5 ࡼࡾ㸪᭤ࡆࡢᙳ㡪ࡀᙉࡃฟࡿ 0,
180[r]࡟࠾࠸࡚㸪ࢡ࣮ࣜࣉ⑂ປᑑ࿨ࡀ▷ࡃ⟬ฟࡉࢀ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡲࡓ㸪࣍࣡࢖ࢺࣀ࢖ࢬࢆຍ࠼ࡓሙ
ྜ࡛ࡣᶍᨃᐇ㦂⤖ᯝ࡜࡯ࡰ➼ࡋ࠸᥎ᐃ⤖ᯝ࡜࡞ࡗ࡚࠾ࡾ㸪ࣂ࢖࢔ࢫࣀ࢖ࢬࢆຍ࠼ࡓሙྜࡣᶍᨃᐇ㦂⤖ᯝࡼࡾ
ࡶ 20㸣⛬ᗘ▷ࡃᑑ࿨ࢆண ࡍࡿ⤖ᯝ࡜࡞ࡗࡓ㸬4. ⤖ゝ
ᮏ◊✲࡛ࡣ㸪ࢹࢪࢱࣝࢶ࢖ࣥᢏ⾡ࢆ⏝࠸㓄⟶⁐᥋ᵓ㐀≀ࡢຊᏛⓗ≧ែࡢ᥎ᐃࢆ⾜ࡗࡓ⤖ᯝ㸪௨ୗࡢ▱ぢࡀᚓࡽࢀࡓ㸬1) ゎᯒ㸪ィ ࡜ࡶ࡟ㄗᕪࡀ࡞࠸ሙྜ㸪㛤Ⓨࢩࢫࢸ࣒ࢆ⏝࠸ࡿࡇ࡜࡛㸪㓄⟶⥅ᡭ࡟⏕ࡌࡿࡦࡎࡳࡀⰋዲ࡟᥎
ᐃ࡛ࡁࡿࡇ࡜ࢆ☜ㄆࡋࡓ㸬2) ィ ⤖ᯝ࡟ࣀ࢖ࢬࡀྵࡲࢀࡿሙྜ㸪ࣛࣥࢲ࣒ࣀ࢖ࢬࢆຍ࠼ࡓሙྜ࡛ࡣ㸪ࢡ࣮ࣜࣉ⑂ປᑑ࿨ࡢ᥎ᐃ⤖ᯝ࡟኱ࡁ࡞ᙳ㡪ࡣ࡞࠿ࡗࡓࡀ㸪೫ࡾࢆᣢࡗࡓࣀ࢖ࢬࢆຍ࠼ࡓሙྜࡣ㸪ᙳ㡪ࡀẚ㍑ⓗ኱ࡁ࠸ࡇ࡜ࡀศ࠿ࡗࡓ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ゎᯒᏛศ㔝㸧− 153 −

ᅛ᭷ࡦࡎࡳࢆ⏝࠸ࡓࢩࣙࢵࢺࣆ࣮ࢽࣥࢢᚋࡢṧ␃ᛂຊศᕸࡢண

ᗈᓥᕤᴗ኱Ꮫ ኴ⏣㧗⿱኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ 㯞ᑀ⥴೓‫ ׬‬ఙ ‫ כ‬௕ௗ௭(೥)
    ߪி(௭) = బ ௛௕       (2)x ᪉ྥ࡜ y ᪉ྥࡢ᭤ࡆࢆᣊ᮰ࡋ࡚࠸ࡿ᭤ࡆ࣮࣓ࣔࣥࢺ
࡜㏫ྥࡁࡢ᭤ࡆ࣮࣓ࣔࣥࢺ‫ࡀܯ‬Ⓨ⏕ࡋ㸪ࣆ࣮ࢽࣥࢢ㠃ࢆฝ࡟ኚᙧࡍࡿ㸬 ‫ݔ‬᪉ྥ࡜‫ݕ‬᪉ྥࡢ᭤ࡆ࣮࣓ࣔࣥࢺࡶ➼ࡋࡃ㸪‫⾲࡜ܯ‬グࡍࡿ㸬௛݄‫כ‬‫ = ܯ‬න ߪ(௭)൬‫ ݖ‬െ ൰ ܾ݀‫(    ݖ‬3)
2
଴‫ࡾࡼ࡟ܯ‬㸪ᯈࡣ‫ݔ‬᪉ྥ࡜‫ݕ‬᪉ྥ࡟ྠࡌ᭤⋡༙ᚄܴ࡟᭤ࡆ
ࡽࢀ㸪⌫㠃≧࡟ኚᙧࡋ㸪᭤ࡆᛂຊߪெ(௭) ࡀⓎ⏕ࡍࡿ㸬ᅗ 1࡟ィ⟬౛ࢆ♧ࡍ㸬‫݄ܾܧ‬ଷܴ=       (4)12‫(ܯ‬1 െ ߥ)
‫ ݖ( ܧ‬െ ݄/2)
ߪெ(௭) =   (5)(1 െ ߥ)ܴ௨ୖࡢᘧ࡛ᮦᩱෆࡢ‫ݔ‬᪉ྥ࡜‫ݕ‬᪉ྥࡢຊ࡜࣮࣓ࣔࣥࢺࡢ
ࡘࡾྜ࠸ࡀィ⟬ࡉࢀ㸪ᯈཌෆ࡟Ⓨ⏕ࡍࡿṧ␃ᛂຊߪ(௭) ࡣ௨ୗࡢᘧ࡛♧ࡉࢀࡿ㸬ᅗ 1 ࡟ィ⟬౛ࢆ♧ࡍ㸬 ᮏ◊✲࡛ࡣࢩࣙࢵࢺࣆ࣮ࢽࣥࢢ࡟࠾ࡅࡿᅛ᭷ࡦࡎࡳศ
ᕸࢆᘧ(8)ࡢ࢞࢘ࢫศᕸ࡜௬ᐃࡋ᳨࡚ウࡋࡓ㸬݃(௭) =

஺
ξଶగௌ

exp ቄ

(௭ି஻)మଶௌ మቅ   (7)ࡇࡇ࡛㸪‫ࡣܣ‬ศᕸࡢ㠃✚ࢆ♧ࡍಀᩘ㸪ܵࡣᶆ‽೫ᕪ࡛ศᕸ
ࡢᗈࡀࡾࢆ♧ࡍಀᩘ㸪‫ࡣܤ‬ᖹᆒ࡛ᅛ᭷ࡦࡎࡳࡢ᭱኱఩⨨ࢆ♧ࡍಀᩘ࡜࡞ࡿ㸬 ᅗ㸯࡟ࡣᯈཌ݄ࡀ 2.5 mm ࡟࠾࠸࡚㸪‫ = ܣ‬6.00 × 10ିସmm, ‫ = ܤ‬0.15 mm㸪ܵ㸻3.00 × 10ିଶ mm㸪‫ = ܧ‬70 GPa㸪ߥ =0.3ࡢሙྜࡢᯈཌෆࡢṧ␃ᛂຊศᕸࡢィ⟬⤖ᯝࢆ♧ࡍ㸬᭷㝈せ⣲ἲ㸦FEM㸧࡛ィ⟬ࡋࡓ⤖ᯝࡶྜࢃࡏ࡚♧ࡍࡀ㸪୧⪅ࡣ୍⮴ࡍࡿ㸬
50

0.002000.0016-50

0.0012

Residual stress
Equation (1)Equation (2)Equation (5)FEM
Inherent strain

-100
-150
-200

Inherent strainṧ␃ᛂຊศᕸࡢண ᡭἲ 1), 2)
ࢩࣙࢵࢺࣆ࣮ࢽࣥࢢ࡟࠾࠸࡚㸪୍ࡘࡢࢩࣙࢵࢺࡀ⾪✺
ࡋ࡚Ⓨ⏕ࡍࡿࡦࡎࡳࡣ㍈ᑐ⛠࡛࠶ࡿࡓࡵ㸪」ᩘࡢࢩࣙࢵ
ࢺࡀ⾪✺ࡋࡓሙྜ࡛ࡶࢩࣙࢵࢺࣆ࣮ࢽࣥࢢ࡛Ⓨ⏕ࡍࡿ x
᪉ྥ࡜ y ᪉ྥࡢᅛ᭷ࡦࡎࡳᡂศࡣྠࡌ࡛㸪ᮦᩱ඲ᇦ࡛ྠ
ࡌศᕸ࡜ࡍࡿ㸬ࡇࡇ࡛㸪z ᪉ྥࢆᯈཌ᪉ྥ㸪x ࡜ y ᪉ྥࢆࣆ࣮ࢽࣥࢢ㠃࡟ᖹ⾜࡞᪉ྥ࡜ࡍࡿ㸬ᮦᩱ࡟እຊ࡜᭤ࡆࣔ
࣮࣓ࣥࢺࡀ㈇Ⲵࡉࢀ㸪ఙࡧ࠾ࡼࡧ᭤ࡆࡀ඲ࡃⓎ⏕ࡋ࡞࠸ሙྜ࡟Ⓨ⏕ࡍࡿᛂຊࢆᅛ᭷ᛂຊ࡜࿧ࡧ㸪ᅛ᭷ᛂຊࡶ x ࡜‫כ‬y ᪉ྥ࡛➼ࡋࡃ࡞ࡿ㸬῝ࡉ‫ݖ‬఩⨨ࡢᅛ᭷ᛂຊߪ(௭)ࢆᘧ(1)࡛
♧ࡍ㸬ᅗ 1 ࡟♧ィ⟬౛ࢆ♧ࡍ㸬
1
‫כ‬
ߪ(௭)
=െ
‫(݃ܧ‬௭)      (1)1െߥࡇࡇ࡛㸪E ࡣࣖࣥࢢ⋡㸪Ȟ ࡣ࣏࢔ࢯࣥẚ࡛࠶ࡿ㸬
x ᪉ྥ࡜ y ᪉ྥࡢఙࡧࢆᣊ᮰ࡋ࡚࠸ࡿຊ࡜㏫ྥࡁࡢຊ
࡟ࡼࡾ㸪ᘧ(4)࡛ィ⟬ࡉࢀࡿᛂຊࡀⓎ⏕ࡍࡿ㸬‫ݔ‬᪉ྥᛂຊ࡜
‫ݕ‬᪉ྥᛂຊࡣ➼ࡋࡃ㸪ߪி(௭) ࡜ࡋ࡚♧ࡍ㸬ᯈཌࢆ݄㸪ᯈᖜࢆܾ࡜ࡍࡿ㸬ᅗ 1 ࡟ィ⟬౛ࢆ♧ࡍ㸬‫כ‬
ߪ(௭) = ߪ(௭)+ ߪி(௭) + ߪெ(௭)    (6)Residual stress [MPa] ᴫせ㻌 㻌 ࢩࣙࢵࢺࣆ࣮ࢽࣥࢢࡣ㔠ᒓ⾲㠃࡟㗰⌫ࢆ⾪✺ࡉࡏ࡚㸪⾲㠃㏆ഐ࡟ረᛶࡦࡎࡳࢆⓎ⏕ࡉࡏࡿࡇ࡜࡛ᅽ⦰ᛂຊ
ࢆ௜୚ࡋ࡚㸪⑂ປᙉᗘࢆྥୖࡍࡿᢏ⾡࡛࠶ࡿ㸬ṧ␃ᛂຊ
ࡢⓎ⏕※ࡣᮦᩱෆ㒊࡟Ⓨ⏕ࡍࡿረᛶࡦࡎࡳࡢ୙ᆒ୍ࡉ࡛
࠶ࡾ㸪ࡇࡢረᛶࡦࡎࡳࡢ㣗࠸㐪࠸ࢆᅛ᭷ࡦࡎࡳ࡜ࡋ࡚ᐃ
⩏ࡍࡿ㸬ᅛ᭷ࡦࡎࡳࢆ⏝࠸ࡿࡇ࡜࡛ࢩࣙࢵࢺࣆ࣮ࢽࣥࢢ
ᚋࡢṧ␃ᛂຊศᕸࢆᙎᛶィ⟬࡛ồࡵࡿࡇ࡜ࡀ࡛ࡁࡿ㸬 ᮏ◊✲࡛ࡣᅛ᭷ࡦࡎࡳศᕸࢆ࢞࢘ࢫศᕸ࡜௬ᐃࡋ࡚㸪ṧ␃ᛂຊศᕸ࡜ࢩࣙࢵࢺᚄ࣭ࢩࣙࢵࢺ㏿ᗘࡢ㛵ಀࢆ᫂ࡽ࠿࡟ࡋࡓ㸬ࡲࡓ㸪ࡇࡢ㛵ಀࢆ⏝࠸࡚㸪ᐇ㦂ࡋ࡚࠸࡞࠸᮲
௳࡛ࡢṧ␃ᛂຊࢆண ࡛ࡁࡿࡇ࡜ࢆ♧ࡋࡓ㸬

0.0

0.5

1.0
1.5
2.0
Depth from surface [mm]0.00080.00042.5

0.0000ᅗ 1㻌 ᯈཌෆ䛾ṧ␃ᛂຊศᕸ䛾ィ⟬⤖ᯝ 1)
 ᐇ㦂⤖ᯝࢆ⏝࠸ࡓᅛ᭷ࡦࡎࡳศᕸࡢỴᐃ 1)྾ᘬᘧࢩࣙࢵࢺࣆ࣮ࢽࣥࢢ⿦⨨࡟ࡼࡿᐇ㦂⤖ᯝ 3)ࢆ⏝࠸ࡓ㸬ࢩࣙࢵࢺࡣࢪࣝࢥࣥࣅ࣮ࢬ࡛㸪ẚ㔜ࡣ 3.85㸪◳ᗘࡣ 650㹼800 HV ࡛࠶ࡿ㸬┤ᚄࡢ␗࡞ࡿ 3 ✀㢮ࡢࢩࣙࢵࢺ㸦FZB20 : D = 0.73 mm㸪FZB40: D = 0.34 mm㸪
FZB100: D = 0.15 mm㸧ࢆ౑⏝ࡋࡓ㸬ࡇࡇ࡛㸪D ࡣᖹᆒࢩࣙࢵࢺᚄ࡛࠶ࡿ㸬 ヨ㦂∦ࡣ࢔࣑ࣝࢽ࣒࢘ྜ㔠 A5052-H34 ࡛㸪⪏ຊࡣ 188
MPa㸪ᘬᙇᙉࡉࡣ 244 MPa ࡛࠶ࡿ㸬ヨ㦂∦ࡢᑍἲࡣ⦪
19 mm×ᶓ 76 mm×ཌࡉ 5 mm ࡛࠶ࡿ㸬ṧ␃ᛂຊࡣヨ㦂∦ࡢ୰ኸ㒊࡛ X ⥺ᅇᢡἲࢆ⏝࠸࡚ィ ࡋࡓ㸬
FZB20 ࡢᐇ㦂⤖ᯝ࡜ィ⟬⤖ᯝࢆᅗ 2 ࡟♧ࡍ㸬ィ⟬ࡣ(1)㹼(7)ᘧࢆ⏝࠸࡚㸪ィ⟬ࡋࡓṧ␃ᛂຊศᕸ࡜ᐇ㦂⤖ᯝࡢㄗᕪࡢ஧஌࿴ࡀ᭱ᑠ࡜࡞ࡿࡼ࠺࡟㸪ᘧ(7)ࡢᅛ᭷ࡦࡎ
ࡳศᕸࡢಀᩘ A㸪B ࠾ࡼࡧ S ࢆỴᐃࡋࡓ㸬✵Ẽᅽࡀ኱ࡁࡃ࡞ࡿ࡜ᅛ᭷ࡦࡎࡳࡀ኱ࡁࡃ࡞ࡾ㸪ᑟධࡉࢀࡿ῝ࡉࡀቑຍࡋ㸪ᅛ᭷ࡦࡎࡳࡢࣆ࣮ࢡ఩⨨ࡶ῝ࡃ࡞ࡿ㸬ṧ␃ᛂຊࡢィ ⤖ᯝ࡜ᅛ᭷ࡦࡎࡳ࠿ࡽィ⟬ࡋࡓ⤖ᯝࡣ࡯ࡰ୍⮴ࡋ㸪ᅛ᭷ࡦࡎࡳࢆ࢞࢘ࢫศᕸ࡜ࡋࡓ௬ᐃࡣጇᙜ࡛࠶ࡿ㸬− 154 −

Inherent strain

0.2 MPa (Cal.)
0.4 MPa (Cal.)
0.6 MPa (Cal.)

0.0

100

0.2
0.4
0.6
0.8
Depth from surface [mm](a) ᅛ᭷ࡦࡎࡳศᕸ

50

1.0

50

-50

-50

-150
-200

-150
-200
0.0

0.2
0.4
0.6
0.8
Depth from surface [mm]

0.0

0.2
0.4
0.6
0.8
Depth from surface [mm]1.0

ᅗ 3 FZB30 ࢆ⏝࠸ࡓሙྜࡢṧ␃ᛂຊศᕸ 1)㸬ࣉࣟࢵࢺࡀᐇ㦂⤖ᯝ㸪ࣛ࢖ࣥࡀィ⟬⤖ᯝࢆ♧ࡍ㸬

0.2 MPa (Exp.)
0.2 MPa (Cal.)
0.4 MPa (Exp.)
0.4 MPa (Cal.)
0.6 MPa (Exp.)
0.6 MPa (Cal.)-100

0.6 MPa (Cal.)
0.6 MPa (Exp.)
0.4 MPa (Cal.)
0.4 MPa (Exp.)
0.2 MPa (Cal.)
0.2 MPa (Exp.)

-100

-250

0

-250

0

50

Residual stress [MPa]Residual stress [MPa](5)࡛ィ⟬ࡋࡓ᭤ࡆᛂຊߪெ(௭) ࡀ኱ࡁࡃ࡞ࡾ㸪ᯈཌෆ㒊࡛ẚ
㍑ⓗ኱ࡁ࡞ᘬᙇᛂຊࡀ⏕ࡌ࡚࠸ࡿ㸬ᅛ᭷ࡦࡎࡳศᕸࢆ⏝࠸࡚ṧ␃ᛂຊࢆண ࡍࡿࡇ࡜࡛㸪ᯈཌࡢ␗࡞ࡿヨ㦂∦࡟ᑐࡋ࡚ࡶṧ␃ᛂຊศᕸ࠾ࡼࡧኚᙧࡀண ࡛ࡁࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓ㸬

Residual stress [MPa]0.00180.00160.00140.00120.00100.00080.00060.00040.00020.00001.0(b) ṧ␃ᛂຊศᕸ
ᅗ 2 FZB20 ࢆ⏝࠸ࡓሙྜࡢィ⟬ࡋࡓᅛ᭷ࡦࡎࡳศᕸ
࡜ṧ␃ᛂຊศᕸ 1)㸬ࣉࣟࢵࢺࡀᐇ㦂⤖ᯝ㸪ࣛ࢖ࣥࡀィ⟬⤖ᯝࢆ♧ࡍ㸬
FBZ20㸪FZB40㸪࠾ࡼࡧ FZB100 ࡢᐇ㦂⤖ᯝ࠿ࡽᅛ᭷
ࡦࡎࡳศᕸࡢಀᩘ㸦‫[ ܣ‬mm]㸪‫[ ܤ‬mm]㸪ܵ [mm]㸧࡜ࢩࣙࢵࢺ㏿ᗘ‫[ ݒ‬m/s]࣭ࢩࣙࢵࢺᚄ‫[ ܦ‬mm]ࡢ㛵ಀࢆ௨ୗࡢᘧ
࡟ࡲ࡜ࡵࡓ㸬
‫( = ܣ‬1.793 × 10ି଺ ‫ ݒ‬ଶ + 3.487 × 10ିସ )‫ܦ‬ଵ.ସ଺଻

ܵ = (1.778 × 10ିହ ‫ ݒ‬ଶ + 1.241 × 10ିଶ ‫ ݒ‬+ 4.470 × 10ିଶ )‫ܦ‬ଵ.ଶ଺ସ
‫( = ܤ‬2.089 × 10ିସ ‫ ݒ‬ଶ )‫ܦ‬ଵ.଼ଶ଼ ṧ␃ᛂຊศᕸࡢண ࡢ᳨ド 1)
3 ❶ࡢࡲ࡛ࡢ᳨ウ࡛ᅛ᭷ࡦࡎࡳศᕸࡢಀᩘ࡜ࢩࣙࢵࢺ
㏿ᗘ࣭ࢩࣙࢵࢺᚄࡢ㛵ಀࢆᚓࡓ㸬ࡑࡇ࡛㸪ᐇ㦂ࢆ⾜ࡗ࡚࠸࡞࠸᮲௳࡟ࡘ࠸࡚㸪ṧ␃ᛂຊࡢண ᡭἲࡢ᳨ドࢆᐇ᪋ࡋࡓ㸬 ࢩࣙࢵࢺᚄࡀ␗࡞ࡿሙྜ
㛵ಀᘧࡢᑟฟ࡟⏝࠸࡚࠸࡞࠸ࢪࣝࢥࣥࣅ࣮ࢬ FZB30
㸦D = 0.51 mm㸧ࢆ⏝࠸ࡓᐇ㦂⤖ᯝ 3)᳨࡛ドࡋࡓ㸬ィ⟬⤖ᯝ࡜ᐇ㦂⤖ᯝࢆᅗ 3 ࡟♧ࡍ㸬ᐇ㦂࡜ィ⟬⤖ᯝࡣ࡯ࡰ୍⮴ࡋ㸪ᐇ㦂ࢆ⾜ࡗ࡚࠸࡞࠸ࢩࣙࢵࢺᚄ࡟ᑐࡋ࡚ࡶ✵Ẽᅽ࡟ࡼࡿṧ␃ᛂຊศᕸࡢኚ໬ࢆண ࡛ࡁࡿࡇ࡜ࢆ☜ㄆࡋࡓ㸬 ᯈཌࡀ␗࡞ࡿሙྜ ᅛ᭷ࡦࡎࡳศᕸࡣヨ㦂∦ࡢᯈཌࡢᙳ㡪ࢆཷࡅ࡞࠸ࡢ࡛㸪ᯈཌࡀ␗࡞ࡿヨ㦂∦࡟ࡶண ᡭἲࡀ㐺⏝࡛ࡁࡿ㸬ࡑࡇ࡛㸪FZB100 ࢆ⏝࠸࡚㸪ᯈཌ 1.5 mm ࡢ࢔࣑ࣝࢽ࣒࢘ྜ㔠
A5052-H34 ࡟ࢩࣙࢵࢺࣆ࣮ࢽࣥࢢࢆ⾜ࡗࡓᐇ㦂⤖ᯝ 4)ࢆ
⏝࠸᳨࡚ドࡋࡓ㸬ィ⟬⤖ᯝ࡜ᐇ㦂⤖ᯝࢆᅗ 4 ࡟♧ࡍ㸬ᐇ㦂⤖ᯝ࡜ィ⟬⤖ᯝࡣࡼࡃ୍⮴ࡍࡿ㸬ࡇࡢヨ㦂∦࡛ࡣᯈཌࡀ 1.5 mm ࡜ⷧ࠸ࡓࡵ㸪᭤ࡆኚᙧࡀ኱ࡁ࠸㸬ࡇࡢࡓࡵ㸪ᘧ

0
-50
-100
0.4 MPa (Cal.)
0.4 MPa (Exp.)
0.2 MPa (Cal.)
0.2 MPa (Exp.)

-150
-200
-250

0.0

0.2
0.4
0.6
0.8
Depth from surface [mm]1.0

ᅗ 4 ᯈཌ 1.5 mm ࡢヨ㦂∦࡟ᑐࡋ࡚㸪FZB100 ࢆ⏝࠸ࡓሙྜࡢṧ␃ᛂຊศᕸ 1)㸬ࣉࣟࢵࢺࡀᐇ㦂⤖ᯝ㸪ࣛ࢖ࣥࡀィ⟬⤖ᯝࢆ♧ࡍ㸬ཧ⪃ᩥ⊩1) ኴ⏣㧗⿱࣭Ἑ㔝┤Ꮨ࣭㯞 ᑀ⥴㸸ᅛ᭷ࡦࡎࡳࢆ⏝࠸ࡓࢩࣙࢵࢺࣆ࣮ࢽࣥࢢ࡟ࡼࡿṧ␃ᛂຊศᕸࡢホ౯㸪ረᛶ࡜ຍᕤ㸪64-754(2023), 202-208.
2) Ohta, T. and Ma, N.: Analytical prediction of shot peening
residual stress distribution using inherent strain inaluminum̽magnesium alloy plates under various peening
conditions, The International Journal of Advanced
Manufacturing Technology, 130(2024), 3065–3079.
3) Ohta, T., He, J., Takahashi, S. and Ma, N.: Measurement
and identified prediction equation for residual stress
distribution in aluminum alloy A5052 under various
pneumatic shot peening conditions. Journal of Materials
Engineering and Performance, 33(2024), 693–705.
4) Ohta, T. and Ma, N.: Shot velocity measurement using
particle image velocimetry and a numerical analysis of theresidual stress in fine particle shot peening, Journal of
Manufacturing Processes, 58(2020), 1138–1149.

− 155 −

㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ゎᯒᏛศ㔝㸧ࢫ࣏ࢵࢺ⁐᥋㒊࡟࠾ࡅࡿ◚᩿ࢡࣛ࢖ࢸࣜ࢔ࡢᵓ⠏࡜ CAE ࡟ࡼࡿண ᢏ⾡ࡢ㛤Ⓨ៞᠕⩏ሿ኱Ꮫ⌮ᕤᏛ㒊ᶵᲔᕤᏛ⛉ ኱ᐑṇẎ៞᠕⩏ሿ኱Ꮫ኱Ꮫ㝔⌮ᕤᏛ◊✲⛉ ᗀ ᣺㚫୉ࡗ୉ָં߻Ռָ‫ ॶڂݜ‬ຓ ೣॻ1㸬┠ⓗ⌧ᅾ㸪㧗ᙇຊ㗰ᯈ㸦ࣁ࢖ࢸࣥᮦ㸧ࡢ◚᩿ண ࡟ࡣ㸪ᘏᛶ◚᩿ࣔࢹࣝࡀά⏝ࡉࢀ㸪ᘬᙇᙉࡉ 590 MPa ⣭ࡢࣁ࢖ࢸࣥᮦ࡟࠾ࡅࡿࡁ⿣Ⓨ⏕ࡸࡁ⿣㐍ᒎ᪉ྥࢆண ࡛ࡁࡿࡼ࠺࡟࡞ࡗ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ᘬᙇᙉࡉ 980MPa ⣭௨ୖࡢࣁ࢖ࢸࣥᮦ࡛ࡣ㸪ࢫ࣏ࢵࢺ⁐᥋㒊࿘㎶ࡢ⇕ᙳ㡪㒊
㸦HAZ㸧ࡀ↝ࡁ࡞ࡲࡋ࡟ࡼࡾ㌾໬ࡋ㸪HAZ 㒊ࢆ㉳Ⅼ࡜ࡋࡓࡁ⿣ࡢⓎ⏕ࡸẕᮦ࡬ࡢᛴ㏿࡞㐍ᒎ࡞࡝࡟ࡼࡿண᝿እࡢ◚ቯ⌧㇟ࡀᣦ᦬ࡉࢀ࡚࠾ࡾ㸪⮬ື㌴⾪✺ CAE ࡟࠾࠸࡚㸪ኚᙧ࣮ࣔࢻࡸ࢚ࢿࣝࢠ࣮྾཰≉ᛶࢆṇ☜࡟ண ࡍࡿࡇ࡜ࡀᅔ㞴࡞≧ἣ࡛࠶ࡿ㸬ࡑࡢࡓࡵ㸪⮬ື㌴⾪✺ CAE ࡟࠾ࡅࡿࢹࢪࢱࣝࢶ࢖ࣥࢆᐇ⌧ࡍࡿࡓࡵ࡟ࡣ㸪ࣁ࢖ࢸࣥᮦࡢẕᮦ࠿ࡽࡢࡁ⿣Ⓨ⏕࣭㐍ᒎࣔࢹࣝࡔࡅ࡛ࡣ୙༑ศ࡛࠶ࡾ㸪ࢫ࣏ࢵࢺ⁐᥋㒊ࡸ
HAZ 㒊࠿ࡽࡢࡁ⿣Ⓨ⏕࣭㐍ᒎࣔࢹࣝࢆేࡏ࡚⪃៖ࡍࡿᚲせࡀ࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ᚤᑠࡏࢇ᩿ヨ㦂ᶵࢆ⏝࠸࡚㸪㉸ࣁ࢖ࢸࣥᮦࢫ࣏ࢵࢺ⁐᥋㒊ࡢᒁᡤຊᏛⓗ≉ᛶ࠾ࡼࡧࡏࢇ᩿◚ቯ≉ᛶࢆ᫂ࡽ࠿࡟ࡋ㸪✀ࠎࡢ㈇Ⲵ࣮ࣔࢻ࡟ᑐᛂ࡛ࡁࡿࢫ࣏ࢵࢺ⁐᥋㒊ࡢ◚᩿࣭ࡁ⿣㐍ᒎண ࣔࢹࣝࢆᵓ⠏ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿ㸬ࡑࡋ࡚㸪ᵓ⠏ࡋࡓຊᏛࣔࢹࣝ
ࢆỗ⏝᭷㝈せ⣲ἲࢯࣇࢺ࢙࢘࢔࡟⤌ࡳ㎸ࡳ㸪ẕᮦ࠾ࡼࡧࢫ࣏ࢵࢺ⁐᥋㒊࠿ࡽࡢࡁ⿣Ⓨ⏕࣭㐍ᒎࣔࢹࣝࢆ⪃៖ࡋࡓ⤫୍ⓗ࡞◚᩿ண ࣔࢹࣝࡢᵓ⠏ࢆ┠ᣦࡍ㸬2㸬ᐇ㦂᪉ἲ
ᮏ◊✲࡛ࡣ㸪ࢫ࣏ࢵࢺ⁐᥋㒊ࡢࢼࢤࢵࢺ㒊࡜ HAZ 㒊࡟ὀ┠ࡋ㸪ࡑࢀࡽࡢ㒊఩࠿ࡽᚤᑠヨ㦂∦ࢆ᥇ྲྀࡋ࡚ࡏࢇ᩿ヨ㦂ࢆ⾜ࡗࡓ㸬ࢫ࣏ࢵࢺ⁐᥋ヨ㦂∦ࡣ㸪ཌࡉ 1mm ࡢࢲࣥ࣋ࣝᆺヨ㦂∦࡟㸪ཌࡉ 1mm ࡢᙜ࡚ᯈࢆࢼࢤࢵࢺᚄ (5.0 mm)࡛᥋ྜࡋࡓ㸬ࡑࡋ࡚㸪ᚤᑠࡏࢇ᩿ヨ㦂∦ࡣ㸪ᅗ 1 ࡟♧ࡍ Nugget㸪SCHAZ㸪UCHAZ㸪ཬࡧẕᮦ㒊ࡢ 4 ⟠ᡤ࠿ࡽ㸪඲㛗 1.6 mm㸪ཌࡉ 0.2 mm ࡜࡞ࡿࡼ࠺࡟࣡࢖࣮ࣖᨺ㟁ຍᕤ࡟ࡼࡾษࡾฟࡋࡓ㸬ᘬᙇヨ㦂࡟⏝࠸ࡓ⿦⨨ࡢᴫせࢆᅗ 2 ࡟♧ࡍ㸬ヨ㦂∦࡟ࡣࢫࣉ࣮ࣞ࡟ࡼࡾࣛࣥࢲ࣒ࣃࢱ࣮ࣥࡀሬᕸࡉࢀ࡚࠾ࡾ㸪ヨ㦂୰ࡢᵝᏊࢆୖ㒊࡟㓄⨨ࡋࡓ CCD ࣓࡛࢝ࣛ᧜ᙳࡋ㸪⏬ീ┦㛵ἲ (DIC)࡟ࡼࡾࡦࡎࡳィ ࢆ⾜ࡗࡓ㸬ᘬᙇヨ㦂㏿ᗘࡣ ȝm/s㸪ࢧࣥࣉࣜࣥࢢ࿘ᮇ
ࢆ 100 ms ࡜ࡋࡓ㸬ࡏࢇ᩿ࡦࡎࡳࡣ DIC

ᐃ࠿ࡽᚓࡓኚ఩࠿ࡽ⟬ฟࡋࡓ㸬ࡉࡽ࡟㸪᭷㝈せ⣲ゎᯒ࡟ࡼࡾࡏࢇ᩿㈇Ⲵ᫬ࡢᛂຊゎᯒࢆ⾜࠸㸪◚᩿⟠ᡤ࡟࠾ࡅࡿᛂຊ୕㍈ᗘศᕸࢆホ౯ࡋ㸪ᚤᑠࡏࢇ᩿ヨ㦂ࡢጇᙜᛶ࡟ࡘ࠸᳨࡚ドࡋࡓ㸬

Fig. 1 Miniature Shear Test (MST) specimen. (a) Shape anddetailed dimensions, (b) images of specimen obtaining, (c) crosssection of FZ and detailed cutting position.

Fig. 2 Experimental framework of MST. (a) Stepping
motor-driven tensile test machine, (b) relationshipbetween the jig (red region) and the specimen's location.

− 156 −

Fig. 5 Nominal shear stress–strain curves for BM, nugget, SCHAZ, ICHAZ and UHAZ of (a)JSC590, (b) JSC980 and (c) JSC1180.

Fig. 4 Verification of Stress State and Strain Concentration. (a) Visualization along gauge line, (b)(c)(d) Trends of stress triaxiality(solid line) and effective strain (dashed line) on the cross-gauge line for JSC590, JSC980, and JSC1180 respectively.

Fig. 3 The history of transformation of stress triaxiality and effective plastic strain of JSC980. Numerical labels indicating observation
positions at the surface edge, surface center, leading edge, and trailing edge in the shear force direction respectively.

㸱㸬⤖ᯝᅗ 3 ࡟ JSC590㸪JSC980 ࡜ JSC1180 ࡟࠾ࡅࡿ㸪ẕᮦ࡜⁐᥋㒊㸦Nugget, UCHAZ, SCHAZ ࡲࡓࡣ ICHAZ㸧ࡢᚤᑠࡏࢇ᩿ヨ㦂⤖ᯝࢆ♧ࡍ㸬࠸ࡎࢀࡢᮦᩱ࡟࠾࠸࡚ࡶ㸪◳໬㒊㸦Nugget ࡲࡓࡣ UCHAZ㸧ࡣẕᮦ࡜ẚ࡭࡚㧗࠸ࡏࢇ᩿ᙉᗘࢆ♧ࡋ࡚࠸ࡿ㸬୍᪉㸪㌾໬㒊㸦SCHAZ㸧࡟࠾࠸࡚ࡣ㸪JSC980㸪JSC1180 ࡟࠾࠸࡚㸪ẕᮦࡼࡾࡶప࠸ࡏࢇ᩿ᙉᗘࢆ♧ࡋ࡚࠾ࡾ㸪ࢫ࣏ࢵࢺ⁐᥋㒊࿘㎶ࡢࡏࢇ᩿≉ᛶࢆᢕᥱࡍࡿࡇ࡜ࡀ࡛
ࡁࡓ㸬ᅗ 4 ࡟᭷㝈せ⣲ゎᯒ⤖ᯝࢆ♧ࡍ㸬ヨ㦂∦୰ኸࡢࢤ࣮ࢪ㒊࡛㸪ᛂຊࡸࡦࡎࡳࡀ㞟୰ࡋ࡚࠾ࡾ㸪ࡲࡓ㸪ࢤ࣮ࢪ㒊ࡢᛂຊ୕㍈ᗘࡣ㸪㗰✀ࡸ HAZ 㒊ࡢ✀㢮࡟ࡼࡾⱝᖸ㐪࠸ࡀぢࡽࢀࡿࡀ㸪࠾࠾ࡼࡑ 0.2 ௜㏆࡜࡞ࡗ࡚࠾ࡾ㸪ࡏࢇ᩿ᛂຊୗ࡛ヨ㦂ࡀ࡛ࡁ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡉࡽ࡟㸪ࡏࢇ᩿ヨ㦂㐣⛬࡛ࡢヨ㦂∦୰ኸ㒊࡟࠾ࡅࡿᛂຊ୕㍈ᗘ࡜ረᛶࡦࡎࡳࡢᒚṔࢆᅗ 5 ࡟♧ࡍ㸬ࡇࢀࡼࡾ㸪ࡦࡎࡳࡀ㞟୰ࡍࡿ⟠ᡤ㸦ᅗ୰ 1
࡜ 2㸧࡟࠾࠸࡚ࡣ㸪ヨ㦂୰㸪ᖖ࡟ࡏࢇ᩿ᛂຊࡀᨭ㓄ⓗ࡛࠶ࡾ㸪ᮏᡭἲ࡟ࡼࡾࡏࢇ᩿㈇Ⲵୗ࡛ࡢᒁᡤຊᏛ≉ᛶࡀᢕᥱ࡛ࡁࡿࡇ࡜ࢆ☜ㄆࡋࡓ㸬㸲㸬⤖ㄽ
JSC590㸪JSC980㸪࠾ࡼࡧ JSC1180 ࡢࢫ࣏ࢵࢺ⁐᥋㒊ࢆᑐ㇟࡜ࡍࡿᚤᑠࡏࢇ᩿ヨ㦂ࢆ⾜࠸㸪ࢫ࣏ࢵࢺ⁐᥋㒊࿘㎶ࡢᒁᡤⓗ࡞ࡏࢇ᩿≉ᛶࢆᢕᥱࡋࡓ㸬ࡉࡽ࡟㸪᭷㝈せ⣲ゎᯒ࡟ࡼࡾ㸪ࢤ࣮ࢪ㒊ࡢᛂຊ୕㍈ᗘᒚṔࢆᢕᥱࡋ㸪ࡏࢇ᩿㈇Ⲵୗ࡛ヨ㦂ࡀ࡛ࡁ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁ㸪ᚤᑠࡏࢇ᩿ヨ㦂ἲࡢṇ☜ᛶ࡜ጇᙜᛶࡀ♧ࡉࢀࡓ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ゎᯒᏛศ㔝㸧− 157 −

Application of computational fracture mechanics for surface-cracked welded joints
Ramy Gadallah a), Ninshu Ma b)a)
Graduate School of Engineering, Osaka Metropolitan Universityb)Joining and Welding Research Institute, Osaka University

1. Introduction
Computational fracture mechanics (CFM) is a wide term that covers many various numerical methods used to solve
fracture mechanics problems by computers. CFM is efficient for the analysis of cracks, crack propagation, and damage
evolution using linear elastic and elastic-plastic analyses. This approach can also predict the macroscopic behavior ofstructures with defects such as cracks, voids, or delamination.
This study aims to investigate the effect of welding residual stress (WRS) on the fatigue crack behavior using the CFM
based on FEM.
2. The interaction integral method (IIM)
The IIM has emerged an efficient and accurate approach to evaluate the mixed-modes stress intensity factors (SIFs)
in different application fields. This method gives actual fields (e.g., displacement, strain, and stress) of an equilibrium
state for a boundary value problem. It also provides auxiliary fields that include desired quantities such as SIFs or Tstresses by another selected equilibrium state. A third equilibrium state called a superimposed state is formed bylinearly combining actual equilibrium fields with auxiliary fields. The calculation of the J-integral for thissuperimposed state leads to a conservation integral, composed of interacting actual and auxiliary terms, which permits
direct computation of SIF solutions. The domain for the interaction integral, ‫( ܫ‬ҧ ‫)ݏ‬, is defined as:
௔௨௫
௔௨௫
௔௨௫
௔௨௫
௔௨௫
‫( ܫ‬ҧ ‫ = )ݏ‬න ൫ߪ௜௝ ‫ݑ‬௝,ଵ+ ߪ௜௝௔௨௫ ‫ݑ‬௝,ଵ െ ߪ௝௞ ߝ௝௞ߜଵ௜ ൯‫ݍ‬,௜ ܸ݀ + න ൣߪ௜௝ ൫‫ݑ‬௝,ଵ௜െ ߝ௜௝,ଵ
൯ + ߪ௜௝,ଵ‫ݑ‬௝,ଵ ൧‫ ܸ݀ݍ‬െ න௏௏ௌ శ ାௌ ష௔௨௫‫ݐ‬௝ ‫ݑ‬௝,ଵ
‫ܵ݀ݍ‬

(1)

where ıij is stress components, uj denotes displacement components, W is strain energy density, įij represents the
Kronecker delta, V is finite volume, S is finite surface, q denotes the weight function and tj represents crack facetraction (CFT) components. The superscript ‘aux’ denotes the auxiliary field components. The third term in Eq. (1)represents the CFT integral, which has a significant contribution to the accuracy of the calculated SIF solutions. To
calculate the SIF (KI value) using the IIM, the following equation was employed:

(2)

ா‫כ‬

‫ܭ‬ூ = ଶ ‫)ݏ(ܫ‬where I(s) is the interaction integral and E* is effective Young's modulus. For plane stress condition, E* = E and E* =E/(1 íȞ2) for plane strain condition, where E is Young's modulus and Ȟ represents Poisson's ratio. The SIFs were
calculated using the linear elastic fracture mechanics approach.
3. Calculation of SIF solutions
A problem that includes the effect of WRS was studied. For this purpose, a butt welded joint with a semi-ellipticalsurface crack was used as shown in Fig. 1(a). Two cases were investigated using different crack aspect ratios as a/t =a/c =0.2 and 0.6. The parameters a, c, and t are defined in Fig. 1(a). Shiratori et al. (1986) formulated an equation to
calculate the WRS for a butt welded joint, as follows:ఙೣ௬= 3 ቀ௖ ቁ
ఙ೚

ଷ

ଽ ௬

ଶ

െ ଶ ቀ௖ ቁ + 1(3)

0 ൑ ‫ ݕ‬൑ ܿ.

The distribution of the calculated WRS using Eq. (3) is shown in Fig. 1(b). To calculate WRS (ıx), a maximum
stress (ıo) of 300 MPa was utilized. The calculated WRS was then applied as tractions over the crack face using the
IIM to calculate the SIF solutions. Young's modulus of 206 GPa and Poisson's ratio of 0.3 were assigned in thecalculations.

− 158 −

Fig. 2 shows a comparison between the solutions given by the IIM and those obtained by Shiratori et al. (1986). A
good agreement was obtained between the solutions along the crack front for the different crack aspect ratios. This
good matching demonstrates the adequacy of the IIM as well as supports applying the IIM for surface cracks in areal WRS field.

Fig. 1 Details of the butt welded joint. (a) geometry of the surface-cracked butt joint and (b) distribution of the calculated
WRS.

Fig. 2 Verification of the IIM solutions for a semi-elliptical surface crack in a WRS field.

The IIM was then applied for calculating SIFs for a semi-elliptical surface crack in a real WRS field. The WRS was
measured using the contour method. The measured WRS was applied over the crack surface in two conditions. The
first condition after smoothing WRS and the other one as an actual field. In addition, for the sake of comparison,mechanical loading was applied without considering the WRS effect to compute SIF. The results of the normalized
SIFs are illustrated in Fig. 3. The distribution of SIF given by the actual WRS revealed that the crack will propagate
in an irregular form, especially around the deepest point.

Fig. 3 Distribution of normalized SIF along the crack front calculated based on real WRS and mechanical loading for a butt
welded joint.

4. Conclusion
The SIF solution obtained by the actual WRS gave an interesting distribution, especially around the crack's deepest
point. This distribution introduced a realistic SIF trend and showed that some regions of the crack front may
propagate faster than others.
㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ゎᯒᏛศ㔝㸧− 159 −

㧗ᙇຊ㗰ᯈ࡜࣐ࢢࢿࢩ࣒࢘ࡢ᢬ᢠࢫ࣏ࢵࢺ⬺ᡂศ᥋ྜᢏ⾡࡟㛵ࡍࡿ◊✲ ᮾ໭኱Ꮫ㔠ᒓᮦᩱ◊✲ᡤ ຍ⸨⚽ᐇࠊ಴ᯘᗣኴ
኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ 㯞 ᑀ⥴ࠊụ⏣೔ṇ  Feasibility study on resistance Spot welding of steel and magnesiumby Hidemi KATO, Kota KURABAYASHI
Ninshu MA, Rinsei IKEDA㸯㸬◊✲┠ⓗCO2 ᤼ฟ㔞ࢆ๐ῶࡍࡿࡓࡵࠊ⮬ື㌴ࡢ㌴యࢆ㍍㔞໬ࡍࡿᢏ⾡ࡢ㛤Ⓨࡀᚲせ୙ྍḞ࡛࠶ࡿࠋ௚᪉ࠊ㌴యࡢ⾪✺Ᏻ඲ᛶࢆ☜ಖࡋ࡞ࡅࢀࡤ࡞ࡽ࡞࠸ࠋࡑࡢ஧ࡘࡢせồࢆ୧❧ࡍࡿࡓࡵࠊⷧᯈ㧗ᙇຊ㗰ᯈ࡜ẚᙉᗘࡢ㧗࠸㍍㔞
ᮦᩱ࣐ࢢࢿࢩ࣒࢘ࢆ฼⏝ࡍࡿࢽ࣮ࢬࡀ㧗ࡲࡗ࡚࠾ࡾࠊࡇࢀࡽ␗✀㔠ᒓ㛫࡟࠾ࡅࡿᙉᅛ࡞᥋ྜᢏ⾡ࢆ☜❧ࡍࡿᚲせࡀ࠶ࡿࠋ୍᪉ࠊ㗰ᮦ࡜࣐ࢢࢿࢩ࣒࢘ࡢ⼥Ⅼࡀࡑࢀࡒࢀ⣙ 1500Υࠊ600Υ࡛ࠊ3 ಸ࡯࡝␗࡞ࡿࡓࡵࠊ୧㔠ᒓࢆྠ᫬࡟⁐⼥⁐᥋ࡍࡿࡇ࡜ࡀ୙ྍ⬟࡛࠶ࡿࠋࡑࡇ࡛ࠊࡇࡇ࡛ࡣࠊ࣐ࢢࢿࢩ࣒࢘ࡢࡳࢆ⁐⼥ࡉࡏࠊⷧᯈ㧗ᙇຊ㗰ᯈࡢ⾲㠃ࡼࡾ Ni ᡂศࢆ⬺ᡂศࡍࡿࡇ࡜࡛ᚓࡽࢀࡿ Fe ┦࡜ Mg ┦ࡢඹ㐃⥆」ྜ⤌⧊ࢆ௓ࡋࡓᶵᲔ᥋ྜࢆ⾜࠺ࠋලయⓗ࡞᥋ྜ࡜ࡋ࡚ࠊ㧗⏕⏘⋡࡜పࢥࢫࢺᛶ࡟ඃࢀࡿ᢬ᢠࢫ࣏ࢵࢺ⁐᥋ࢆ⏝࠸࡚ᇶ♏◊✲ࢆ⾜࠺ࠋᮏᢏ⾡ࢆ☜❧ࡍࢀࡤࠊ㌴యࡢ㍍㔞໬ࢆ㏻ࡋ࡚ࠊCO2 ࡢ๐ῶ࡜ SDGs ࡟㈉⊩࡛ࡁࡿࠋ㸰㸬◊✲ᡂᯝ
 )H1L ྜ㔠࡜࣐ࢢࢿࢩ࣒࢘ $=% ࡢ᢬ᢠࢫ࣏ࢵࢺ⁐᥋ヨ㦂᮲௳ Fig.1 ࡟ࡣࠊFe-Ni ྜ㔠࡜࣐ࢢࢿࢩ࣒࢘ྜ㔠ࡢ᢬ᢠࢫ࣏ࢵࢺ⁐᥋ヨ㦂ࡢࢭࢵࢺ࢔ࢵࣉࢆ♧ࡍࠋFig.2 ࡟ࡣࠊ᢬ᢠࢫ࣏ࢵࢺ⁐᥋ࡢ㟁ᴟᙧ≧࡜ᑍἲࢆ♧ࡍࠋ㟁ᴟඛ➃ࡢ༙ᚄ R ࡣ 100mm ࡛࠶ࡿࠋ⁐᥋㟁ὶࡢ᫬㛫ኚ໬ࢆ Fig.3
࡟♧ࡋࠊ᭱኱㟁ὶࡣ 10kA ࡛ 60Hz ࡢ஺ὶ㟁※ࢆ⏝࠸ࡓࠋFig.4 ࡟ࡣࠊ᢬ᢠࢫ࣏ࢵࢺ⁐᥋ヨ㦂∦ࡢᙧ≧࡜ᑍἲࢆ♧ࡍࠋFe-Ni ྜ㔠࡜࣐ࢢࢿࢩ࣒࢘ྜ㔠ࡢᯈཌࡣࡑࢀࡒࢀ 1.5mm ࡜ 1.0mm ࡛࠶ࡿࠋヨ㦂∦ࡢᖜ࡜㛗ࡉࡣࠊࡑࢀࡒࢀ 30mm ࡜ 150mm ࡛࠶ࡿࠋ⁐᥋㒊ࡢ㔜ࡡ㡿ᇦࡣ 30mm30mm ࡛࠶ࡗࡓࠋ

− 160 −

 )H1L ྜ㔠࡜࣐ࢢࢿࢩ࣒࢘ $=% ࡢ᢬ᢠࢫ࣏ࢵࢺ⁐᥋ᙉᗘヨ㦂
Table 1 ࡣࠊ᢬ᢠࢫ࣏ࢵࢺ⁐᥋ヨ㦂∦ࡢ㏻㟁᫬㛫ࢆኚ໬ࡉࡏࡓ 6 ᮲௳࡟ᑐࡋ࡚ࠊᘬᙇࡾࡏࢇ᩿ヨ㦂࡟ࡼࡿᙉᗘࡢኚ໬ࢆ♧ࡍࠋFig.5 ࡣࠊヨ㦂࡛ᚓࡽࢀࡓⲴ㔜㸫ኚ఩ࡢ᭤⥺ࢆ♧ࡍࠋ㏻㟁᫬㛫 2 ⛊࡜ࡢ Case 3 ࡛ࡣࠊᘬᙇࡾ
ࡏࢇ᩿ᙉᗘࡀ᭱ࡶ㧗ࡃࠊ᭱኱ኚ఩ࡶ኱ࡁ࠸⤖ᯝ࡜࡞ࡿࠋ㸴ࢣ࣮ࢫࡢ୰࡛᭱㐺࡞⁐᥋᮲௳࡛࠶ࡿࠋ㛗᫬㛫ࡲࡓࡣ▷᫬㛫ࡢ㏻㟁ຍ⇕ࢣ࣮ࢫ࡛ࡣᙉᗘࡢపୗࡋࡓ⌧㇟ࡀぢࡽࢀࡿࠋ ᢬ᢠࢫ࣏ࢵࢺ⁐᥋⏺㠃ࡢ 6(0 ほᐹ⤖ᯝᘬᙇࡾࡏࢇ᩿ᙉᗘࡀ᭱ࡶ㧗࠸ヨ㦂∦㸦Case 3㸧ࡢ⁐᥋⏺㠃ࢆ SEM ࡛ほᐹࡋࡓ⤖ᯝࢆ Fig.6 ࡟♧ࡍࠋ᥋ྜ⏺
㠃࡟࠾ࡅࡿ FeࠊNiࠊMg ࠾ࡼࡧ Al ࡢඖ⣲ศᕸࡣࠊᛴ࡟ኚ໬ࡋ࡚࠸ࡿࠋࡲࡓ᥋ྜ⏺㠃࡟࠾࠸࡚ Al ࡀ⃰໬ࡋ࡚࠸ࡿ㡿ᇦࡀほᐹࡉࢀࡓࡀࠊ┦ࢆྠᐃࡍࡿࡇ࡜ࡣ࡛ࡁ࡞࠿ࡗࡓࠋ௒ᚋ TEM ➼ࢆ⏝࠸࡚ࠊヲ⣽࡞ศᯒࢆ⾜࠸ࠊ᥋ྜ࣓࢝ࢽࢬ࣒ࡢゎ᫂ࢆ⾜࠺ᚲせࡀ࠶ࡿࠋ㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ゎᯒᏛศ㔝㸧− 161 −

Effect of Shot Size and Shot Pressure on Residual Stress Distribution of High-Speed Tool Steel
SKH51

1. Introduction
The shot peening process is a widely used technique thatenhances the service life of die and mechanical parts such as
gears and springs [1], [2]. It has been found to improve fatigue
strength [3] and wear resistance [4]. Different shot peening
parameters provide various results. Although there have been
many studies on the influence of various parameters on fatigue
properties [3], [5], [6], only a few have been conducted on theeffect of shot peening on SKH51 material. Therefore, thisresearch aims to study the effect of shot sizes and pressures ofshot peening on SKH51 material.

Higher compressive residual stress at the surface (0 m) was
achieved with smaller shot sizes at every shot pressure, whereas
under the surface, larger shot sizes resulted in higher
compressive residual stress, with the shot peened layer of larger
shot sizes being deeper. Due to the bigger shot size, a deeper
level of plastic deformation was achieved [6]. The maximum
shot-peened layer, approximately 70 m deep, was observed in
specimens shot-peened with larger shot sizes and high shotpressure.

2. Experiment Method
2.1 Materials
The commercial high-speed tool steel JIS-SKH51 quenched
and tempered are used as specimens. Its chemical composition
and mechanical properties are given in Table 1. The dimensionsof the specimens are 32 mm in diameter and 12 mm in thickness.

Residual Stress (MPa)

Nitchamon Lookkum, Varunee Premanond, King Mongkut's University of Technology Thonburi
Hiroaki Kubota, Tokai University
Ninshu Ma, Joining and Welding Research Institute, Osaka University

2.2 Shot Peening
The specimens were shot peened by Fuji Manufacturing inJapan using steel balls with a hardness of approximately 1200
HV. Two different shot sizes were used: 40 m and 140 m.
Three different shot pressures were applied: 0.15 MPa, 0.30
MPa, and 0.50 MPa. In total, six shot peening conditions were
tested, and the specimen without shot peening was used as areference material.
2.3 Residual Stress Measurement
Residual stress analysis was conducted using the X-ray
diffraction method. A Portable X-ray Residual Stress Analyzer(ȝ-X360s, Pulstec Industrial Co., Ltd.) using the cosĮ method
was utilized for the analysis. The electrochemical polishingtechnique was used to remove the layer and measure the residual
stress in the depth direction. The residual stress was alsomeasured in two directions.
3. Experiment Results and Discussion
3.1 Effect of Shot Size on Residual Stress Distribution
The distribution of residual stress in the depth direction fromthe surface was examined for shot-peened with low, medium,and high pressure and non-shot-peen specimens, as illustrated in
Figures 1, 2, and 3, respectively. Peaks of residual stress wereobserved at the surface in most specimens, while in others, thepeaks were near the surface. The maximum residual stress,
reaching about 1600 MPa at the surface, was found in specimens
shot-peened with a small shot size and high shot pressure.

− 162 −Non Shotpeen
40 m

140 m

0

10

20

30

40

50

60

70

Depth (m)Fig. 1 Residual stress distribution of shot peened specimens
with low shot pressure (0.15 MPa)

Residual Stress (MPa)

Table 1 Chemical Composition of SKH51 (wt%)
C
Cr
Mo
W
V
Mn
0.85
4.15
6.5
5.3
2.05
0.35

200
0
-200
-400
-600
-800
-1000
-1200
-1400
-1600
-1800

200
0
-200
-400
-600
-800
-1000
-1200
-1400
-1600
-1800

Non Shotpeen
40 m
140 m

0

10

20

30

40

50

60

70

Depth (m)Fig. 2 Residual stress distribution of shot peened specimens
with medium shot pressure (0.30 MPa)

Non Shotpeen
40 m

140 m
0

10

20

30

40

50

60

70

Depth (m)Residual Stress (MPa)Residual Stress (MPa)

200
0
-200
-400
-600
-800
-1000
-1200
-1400
-1600
-1800

200
0
-200
-400
-600
-800
-1000
-1200
-1400
-1600
-1800

Non Shotpeen
0.15 MPa0.30 MPa0.50 MPa
0

10

20

30
40
Depth (m)

50

60

70

Fig. 5 Residual stress distribution of shot peened specimens
with large shot size (140 m)

3.2 Effect of Shot Pressure on Residual Stress Distribution
The distribution of residual stress in the depth direction fromthe surface was examined for shot-peened with small and large
size and non-shot-peen specimens, as illustrated in Figures 4
and 5, respectively.
As the shot pressure increases, the residual stress at thesurface is decreased for the large shot size, while remaining
almost the same value for the small shot size. Increasing shotpressure leads to a deeper shot-peened layer. The distribution ofcompressive residual stress grows more dramatically with shot
size than with shot pressure.
Compared to smaller sizes, bigger shot sizes are heavier, anda higher-pressure shot has a higher shot velocity. Deeper
compressive residual stress is produced by higher shot energy,
which is a result of shot weight and velocity [3]. Additionally,larger shot sizes created bigger and deeper dimples on thespecimen's surface.

4. Conclusion- The compressive residual stress distribution is increased as
shot size and shot pressure increase.
- The depth of the shot-peened layer is increased as shot sizeand shot pressure increase.
- A greater effect on the compressive residual stress distribution
is exerted by the shot size than the shot pressure.

Residual Stress (MPa)Fig. 3 Residual stress distribution of shot peened specimens
with high shot pressure (0.50 MPa)

200
0
-200
-400
-600
-800
-1000
-1200
-1400
-1600
-1800

Non Shotpeen
0.15 MPa0.30 MPa0.50 MPa
0

10

20

30
40
Depth (m)

50

60

70

Fig. 4 Residual stress distribution of shot peened specimens
with small shot size (40 m)

References[1]
Y. Harada, K. Fukauara, and S. Kohamada, “Effects of
microshot peening on surface characteristics of highspeed tool steel,” J Mater Process Technol, vol. 201,
no. 1–3, pp. 319–324, May 2008, doi:
10.1016/j.jmatprotec.2007.11.247.
[2]
K. Tosha, “Characteristics of Shot Peened Surfaces andSurface Layers,” The Shot Peener magazine, vol. 19,
no. 1, 2005.
[3]
Y. Uematsu, T. Kakiuchi, K. Tokaji, K. Nishigaki, andM. Ogasawara, “Effects of shot peening on fatigue
behavior in high speed steel and cast iron withspheroidal vanadium carbides dispersed withinmartensitic-matrix microstructure,” Materials Scienceand Engineering: A, vol. 561, pp. 386–393, Jan. 2013,
doi: 10.1016/j.msea.2012.10.045.
[4]
Z. Yang, J. Zheng, K. Zhan, C. Jiang, and V. Ji, “Surface
characteristic and wear resistance of S960 high-strength
steel after shot peening combing with ultrasonicsprayed graphene oxide coating,” Journal of Materials
Research and Technology, vol. 18, pp. 978–989, May
2022, doi: 10.1016/j.jmrt.2022.02.124.
[5]
S. Bagherifard, R. Ghelichi, and M. Guagliano,“Numerical and experimental analysis of surface
roughness generated by shot peening,” Appl Surf Sci,
vol. 258, no. 18, pp. 6831 –6840, Jul. 2012, doi:
10.1016/j.apsusc.2012.03.111.
[6]
G. H. Farrahi, J. L. Lebrijn, and D. Couratin, “EFFECTOF SHOT PEENING ON RESIDUAL STRESS AND
FATIGUE LIFE OF A SPRING STEEL,” Fatigue
Fract Eng Mater Struct, vol. 18, no. 2, pp. 211–220,
1995, doi: 10.1111/j.1460-2695.1995.tb00156.x.

（共同研究分野：接合構造化解析学分野）− 163 −

༢ㄪᅽ⦰ࢆཷࡅࡿ㜵ᧉࣃࢿࣝࡢᗙᒅᚋࡢᘏᛶ◚ቯ࡟㛵ࡍࡿ◊✲ඹྠ◊✲ဨ㸸㎮ᕭ ᫭㸦኱㜰኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉㸧ඹྠ◊✲ဨ⿵ຓ⪅㸸ᑠ⏣ ㈗ᗈ㸦኱㜰኱ᏛᕤᏛ㒊㸧
接合科学研究所：麻寧緒、Qian Wang
1. ࡣࡌࡵ࡟
⯪యࡢ⦪᭤ࡆᔂቯ࡛ࡣ㸪ᅽ⦰ഃࡢ㒊ᮦ࡛ᗙᒅࡀ⏕ࡌ㸪᭱⤊ⓗ࡟ࡣᘏᛶட⿣ࡀⓎ⏕࣭㐍ᒎࡍࡿࡇ࡜࡛⯪యࡣᢡᦆ࣭ỿἐ࡟⮳ࡿ࡜⪃࠼ࡽࢀࡿ㸬୍㐃ࡢ࣓࢝ࢽࢬ࣒ࢆゎ᫂ࡍࡿࡇ࡜࡛⦪᭤ࡆ
ᔂቯࡢࣜࢫࢡࢆࡼࡾṇ☜࡟ホ౯࡛ࡁࡿࡔࢁ࠺㸬ඛ⾜◊✲࡛ࡣ㸪ᗙᒅᚋࡢᘏᛶ◚ቯࡣᯈ࡜㜵ᧉᮦࡢ᥋ྜ㒊࠿ࡽⓎ⏕ࡍࡿྍ⬟ᛶࡀ㧗࠸ࡇ࡜ࡀศ࠿ࡗࡓ㸬᥋ྜ㒊ࡢ⇕ᙳ㡪㒊㸦HAZ㸧ࡢᘏᛶ◚ቯ≉ᛶࢆㄪ࡭ࡿ᪉ἲ࡜ࡋ࡚㸪ᚤᑠヨ㦂∦ࢆ⏝࠸ࡿ᪉ἲࡀ࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪HAZ ࡢᮦᩱ≉ᛶࡢㄪᰝࡢ๓ẁ࡜ࡋ࡚㸪ẕᮦ㸦SS400 ᮦ㸧࡟ࡘ࠸࡚㸱✀㢮ࡢᚤᑠヨ㦂∦ࢆ‽ഛࡋ㸪」ᩘࡢᛂ
ຊ≧ែ࡛ࡢ◚᩿ヨ㦂ࢆᐇ᪋ࡍࡿ㸬ヨ㦂⤖ᯝ࡜ FEM ゎᯒࢆ㏻ࡌ࡚㸪ẕᮦࡢᮦᩱࣃ࣓࣮ࣛࢱࢆ
ྠᐃࡍࡿ㸬
2. ᮦᩱࣔࢹࣝ࡜◚ቯࡢࢡࣛ࢖ࢸࣜ࢔
ᮦᩱࡢᛂຊ㸫ࡦࡎࡳ㛵ಀ࡟ࡘ࠸࡚㸪㝆అᲴࢆ⾲⌧ࡍࡿࡓࡵ㝆అᚋࡣᛂຊࢆ୍ᐃ࡜ࡍࡿ㸬ࡦࡎࡳ◳໬ࡣᣦᩘ๎࡛ࣔࢹࣝ໬ࡍࡿ㸬ߪ௒ ሺߝ௣ ൑ ߝ଴ ሻߪൌቊ‫ߝܣ‬௣ ௡ ሺߝ௣ ൐ ߝ଴ ሻሺͳሻ‫ܣ‬ǡ ݊ǡ ߝ଴ ࡀᮦᩱࣃ࣓࣮ࣛࢱ࡛࠶ࡿ㸬◚᩿ࡦࡎࡳߝҧ௙ ࡣᛂຊ୕㍈ᗘߟ࡞ࡽࡧ࡟➨㸱୙ኚ㔞࡟㛵㐃ࡍࡿ࣮ࣟࢻゅࣃ࣓࣮ࣛࢱߠ࡟ࡶ౫Ꮡࡍࡿࡇ࡜▱ࡽࢀ࡚࠸ࡿ㸬ࡇࡢ౫Ꮡᛶࢆ⾲⌧࡛ࡁࡿࣔࢹࣝࡢ
㸯ࡘࡀḟᘧ࡛⾲ࡉࢀࡿ Modified Mohr-Coulomb㸦MMC㸧ࣔࢹࣝ ࡛࠶ࡿ㸬
ߝҧ௙ ൌ

‫ܣ‬
቎
ܿଶ

ͳ ൅ ܿଵଶ
ඨ
͵

 ቆ

ߠҧߨ
ͳ
ߠҧߨ
ቇ ൅ ܿଵ ቆߟ ൅  ቆ ቇቇ቏
͸
͵
͸

ଵ
ି
௡

ሺʹሻ

‫ܣ‬ǡ ݊ࡣ(1)ᘧࡢᣦᩘ๎ࡢࣃ࣓࣮ࣛࢱ࡛࠶ࡾ㸪ܿଵ ǡ ܿଶ ࢆྠᐃࡍࡿᚲせࡀ࠶ࡿ㸬[mm]Fig. 1 Miniature specimens.

3. ᮦᩱࡢ◚᩿ヨ㦂SS400 ᮦࡢᚤᑠヨ㦂∦ࡢᘬᙇ࠾ࡼࡧࡏࢇ᩿Ⲵ㔜≧ែ࡛ࡢ◚᩿ヨ㦂ࢆ⾜ࡗࡓ㸬ᘬᙇヨ㦂࡟ࡘ࠸࡚ࡣ㸪Fig. 1 ࡟♧ࡍࣀࢵࢳ↓ࡋ࠾ࡼࡧࣀࢵࢳ᭷ࡾࡢ 2 ✀㢮ࡢヨ㦂∦ࢆ‽ഛࡋࡓ㸬ࢹࢪࢱࣝ⏬ീ┦㛵ἲ㸦DIC㸧࡟ࡼࡾヨ㦂∦ࡢࡦࡎࡳࡢศᕸࢆྲྀᚓࡋ㸪ࣀࢵࢳ↓ࡋᘬᙇヨ㦂ࡢ┿ᛂຊʊ− 164 −ረ ᛶ ࡦ ࡎࡳ 㛵 ಀࢆ ᚓ ࡓ㸬 ࡇ ࡢ ⤖ᯝ ࡼ ࡾ㸪 (1) ᘧࡢ ᣦ ᩘ ๎ࡢ ࣃ ࣓ࣛ ࣮ ࢱ ࢆ ࡑ ࢀ ࡒࢀ‫ ܣ‬ൌ͹ͻͲሾሿǡ ݊ ൌ ͲǤͳͺ࡜ྠᐃࡋࡓ㸬
4. FEM ゎᯒ
FEM ࢆ⏝࠸࡚ᚤᑠヨ㦂∦ࡢゎᯒࢆ⾜ࡗࡓ㸬ࡏࢇ᩿ヨ㦂࡟㛵ࡋ࡚ࡣ㸪ኚ఩ࢆᙉไኚ఩࡜ࡋ
࡚୚࠼ࡿゎᯒ࡜㸪἞ලࢆࣔࢹࣝ໬ࡋ࡚᥋ゐࢆ⪃៖ࡍࡿゎᯒࡢ 2 ࡘࢆ⾜ࡗࡓ㸬Fig. 2 ࡟Ⲵ㔜㸫ኚ఩㛵ಀࢆẚ㍑ࡍࡿ㸬ᘬᙇヨ㦂࡛ࡣ㸪◚᩿ࡢ㛤ጞ఩⨨ࡲ࡛ FE ゎᯒࡢ⤖ᯝࡣヨ㦂⤖ᯝ࡜Ⰻࡃ୍⮴ࡍࡿ㸬ࡏࢇ᩿ヨ㦂ࡢሙྜ㸪἞ල࡜ࡢ᥋ゐࢆ⪃៖ࡋࡓゎᯒࡀ㸪ヨ㦂⤖ᯝ࡜Ⰻࡃ୍⮴ࡋ࡚࠸ࡿ㸬FE ゎᯒ࡜ヨ㦂ࡢ⤖ᯝࡢᕪࡀ኱ࡁࡃ࠶ࡿ఩⨨ࢆ◚᩿఩⨨࡜ࡋࡓ㸬
Fig. 3 ࡟㸱ࡘࡢヨ㦂࠿ࡽᚓࡽࢀࡓᛂຊ୕㍈ᗘ࡜◚᩿ࡦࡎࡳࡢ㛵ಀࢆⅬ࡛♧ࡍ㸬ࡓࡔࡋ㸪ᛂຊ୕㍈ᗘࡣ┦ᙜረᛶࡦࡎࡳቑศࢆ㔜ࡳ࡜ࡋ࡚ᖹᆒࡋࡓ್ࢆ⏝࠸ࡓ㸬ᘬᙇヨ㦂ࡼࡾࡶࡏࢇ᩿
ヨ㦂ࡢ᪉ࡀ◚᩿ࡦࡎࡳࡣ኱ࡁࡃ࡞ࡗࡓ㸬ࡇࢀࡽࡢ㸱Ⅼ࡟ྜ࠺ࡼ࠺࡟㸪᭱ᑠ஧஌ἲࢆ⏝࠸࡚
MMC ࣔࢹࣝࡢࣃ࣓ࣛࢱࢆܿଵ ൌ ͲǤ͵ͳǡ ܿଶ ൌ ͷͶ͵ሾሿ࡜ồࡵࡓ㸬(a) Tensile test(b) Shear test

Fig. 2 Comparison of load-displacement curves.

Fig. 3 Relationship between fracture strain and stress triaxiality.

5. ࡲ࡜ࡵ
㸱✀㢮ࡢᚤᑠヨ㦂∦ࡢ◚᩿ヨ㦂࡜ FE ゎᯒࢆ⾜࠸㸪MMC ࣔࢹࣝࡢᮦᩱࣃ࣓࣮ࣛࢱࢆྠᐃ
ࡋࡓ㸬௒ᚋࡣ㸪HAZ ࠾ࡼࡧ⁐᥋㔠ᒓࡢᮦᩱࣃ࣓࣮ࣛࢱࡢྠᐃࢆ⾜ࡓࡗࡓࡢࡕ㸪ᗙᒅࢆక࠺
㜵ᧉࣃࢿࣝᵓ㐀ࡢᘏᛶ◚ቯ࡟ࡘ࠸࡚ᐇ㦂࠾ࡼࡧᩘ್ゎᯒ࡟ࡼࡾㄪ࡭ࡿணᐃ࡛࠶ࡿ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬ゎᯒᏛศ㔝㸧− 165 −

⁐᥋ࢩ࣑࣮ࣗࣞࢩࣙࣥࡢຠ⋡໬࡜⁐᥋ᵓ㐀㒊ᮦࡢ⪏Ⲵᛶ⬟ホ౯኱㜰኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ᆅ⌫⥲ྜᕤᏛᑓᨷ ᘅ⏿ᖿே㸪ᡂ㞵㌺኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤ᥋ྜᵓ㐀໬ゎᯒᏛศ㔝 㯞ᑀ⥴࣮࣮࢟࣡ࢻ᭷㝈せ⣲ゎᯒ㸪⁐᥋ṧ␃ᛂຊ㸪ึᮇ୙ᩚ㸪ᗙᒅ㸪⪏Ⲵຊ
1. ͺͣΌͶ
ᶫᱱ࡞࡝ࡢ኱ᆺ⁐᥋ᵓ㐀≀ࡢ⪏Ⲵᛶ⬟ホ౯࡟࠾࠸࡚㸪⁐᥋ኚᙧ࡜ṧ␃ᛂຊࢆ㧗⢭ᗘ࡟෌⌧ࡋ㸪ࡇࢀࡽࢆึᮇ୙ᩚ࡜ࡋ࡚⪃៖ࡋࡓࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜࠺ࡇ࡜ࡀ᭷ຠ࡛࠶ࡿࠋࡋ࠿ࡋ㸪᭷㝈せ⣲ゎᯒ࡟ࡼࡿ⁐᥋ᵓ㐀㒊ᮦࡢኚᙧ࠾ࡼࡧṧ␃ᛂຊࡢࢩ࣑࣮ࣗࣞࢩ࡛ࣙࣥࡣ㸪ࣔࢹࣝࡢࢧ࢖ࢬࡸ౑⏝ࡍࡿせ⣲ࡢ✀㢮࡟ࡼࡗ࡚ከ኱࡞ィ⟬᫬㛫ࢆせࡍࡿሙྜࡀ
࠶ࡿࠋᮏ◊✲࡛ࡣ㸪౑⏝ࡍࡿせ⣲ࡢ✀㢮࡜ࡑࢀ࡟ᛂࡌࡓධ
⇕᪉ἲࢆ᳨ウࡍࡿࡇ࡜࡛⁐᥋ࢩ࣑࣮ࣗࣞࢩࣙࣥࡢຠ⋡໬ࢆᅗࡿ࡜࡜ࡶ࡟㸪⁐᥋ࣉࣟࢭࢫ࠿ࡽ㍕Ⲵࣉࣟࢭࢫࡲ࡛ࢆ
㐃⥆ࡋ࡚ゎᯒࡍࡿᡭἲࢆᵓ⠏ࡍࡿࠋ᪤ ࡢ◊✲࡟࠾࠸࡚㸪⁐᥋㗰ᵓ㐀≀ࡢᅽ⦰ᣲືゎᯒ⢭ᗘ࡟ཬࡰࡍึᮇ୙ᩚࡢᑟධ㐣⛬ࡢᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࡓ
ࡵࡢ୍㐃ࡢ᳨ウࢆᐇ᪋ࡋ࡚ࡁࡓ[1㸪2]ࠋࡇࢀࡽࡢ᪤ ࡢ◊✲࡛ࡣ㸪せ⣲ࡢ✀㢮࡜ࡋ࡚ࢯࣜࢵࢻせ⣲࡜ࢩ࢙ࣝせ⣲ࡢ㐺⏝ࢆヨࡳ࡚࠸ࡿࠋᮏ◊✲࡛ࡣ㸪ゅ⁐᥋࡟ࡼࡿ㗰ᰕࢆ౪ヨయ࡜ࡋ࡚㑅ᐃࡋ㸪ゅ⁐᥋౪ヨయࢆࢯࣜࢵࢻせ⣲࡛ࣔࢹࣝ໬ࡋゎᯒࢆ⾜ࡗࡓࠋṧ␃ᛂຊࡢᑟධ᪉ἲࢆኚ࠼ࡓゎᯒࣔࢹࣝࡢᅽ⦰ᣲືࢆẚ㍑ࡋ㸪ṧ␃ᛂຊࡢᑟධ᪉ἲࡀゎᯒ⢭ᗘ࡟ཬࡰࡍᙳ㡪ࢆ᳨ウࡋࡓࠋ

ਦ 1 ᐇ㦂౪ヨయ

2. ᐇ㦂౪ヨయ࠾ࡼࡧゎᯒࣔࢹࣝᮏ◊✲࡟࠾ࡅࡿ౪ヨయ࡜ࡋ࡚ 2 యࡢゅ⁐᥋౪ヨయࢆస〇ࡋࡓࠋ౪ヨయࡢᙧ≧࠾ࡼࡧᑍἲࡣᅗ 1 ࡟♧ࡍ࡜࠾ࡾ࡛
࠶ࡿࠋᮦᩱࡣ SM400B ࡛࠶ࡾ㸪ࣇࣛࣥࢪࡢཌࡉࡣ 25mm㸪
࢙࢘ࣈࡢཌࡉࡣ 12mm ࡛࠶ࡿࠋ2 ᯛࡢ࢙࢘ࣈࡣ༙⮬ື࢔࣮ࢡ⁐᥋࡟ࡼࡾ 4 ࣃࢫ࡛᥋ྜࡋࡓࠋ⁐᥋ᚋ㸪࢙࢘ࣈࡢ㠃እኚᙧ࡜ṧ␃ᛂຊࢆ ᐃࡋࡓࠋࡲࡓ㸪౪ヨయ࡟༢ㄪ㟼ⓗᅽ⦰Ⲵ㔜ࢆ㈇Ⲵࡋ㸪Ⲵ㔜㸫㖄┤ኚ఩㛵ಀࢆྲྀᚓࡋࡓࠋ
ᅗ 2 ࡟♧ࡍ᭷㝈せ⣲ゎᯒࣔࢹࣝࢆసᡂࡋ㸪⁐᥋㐣⛬࡜㍕Ⲵ㐣⛬ࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ㐃⥆ⓗ࡟⾜ࡗࡓࠋᮏ◊✲࡛ࡣ㸪ࡇࡢ㐃⥆ゎᯒࣔࢹࣝࢆ W ࣔࢹࣝ࡜ࡍࡿࠋࡉࡽ࡟㸪ṧ␃ᛂຊࢆᑟධࡏࡎ㸪⁐᥋ኚᙧࢆึᮇᙧ≧࡜ࡋ࡚⪃៖ࡋ− 166 −

ਦ 2 ᭷㝈せ⣲ゎᯒࣔࢹࣝ㍕Ⲵ㐣⛬ࢆࢩ࣑࣮ࣗࣞࢩࣙࣥࡋࡓࣔࢹࣝࢆ D ࣔࢹࣝ࡜ࡍࡿࠋࡉࡽ࡟㸪⁐᥋㐣⛬ࡢࢩ࣑࣮ࣗࣞࢩࣙ
ࣥࡣᐇ᪋ࡏࡎ㸪ṧ␃ᛂຊࢆึᮇᛂຊ࡜ࡋ࡚㸪⁐᥋ኚᙧࢆึᮇᙧ≧࡜ࡋ࡚⪃៖ࡋ㸪㍕Ⲵ㐣⛬ࢆࢩ࣑࣮ࣗࣞࢩࣙࣥࡋࡓࣔࢹࣝࢆ R ࣔࢹࣝ࡜ࡍࡿࠋ௨ୗ㸪ࡇࢀࡽࡢࣔࢹࣝࡢᅽ⦰ᣲືࢆᐇ㦂⤖ᯝ࡜࡜ࡶ࡟ẚ㍑㸪ホ౯ࡍࡿࠋ
3. ᐇ㦂࠾ࡼࡧゎᯒ⤖ᯝୖグࡢ 3 ࡘࡢࣔࢹࣝࡣࡍ࡭ึᮇᙧ≧ࡀྠࡌ࡛࠶ࡾ㸪R ࣔࢹࣝ࡜ W ࣔࢹࣝࡣྠࡌṧ␃ᛂຊࢆᑟ
ධࡋ࡚࠸ࡿࡀ㸪⁐᥋㐣⛬࡜㍕Ⲵ㐣⛬ࡢ㐃⥆ゎᯒࢆ⾜ࡗࡓ W ࣔࢹࣝࡔࡅࡀ㸪ᅗ 3 ࡟♧ࡍࡼ࠺࡟ᐇ
㦂࡛ᚓࡽࢀࡓⲴ㔜㸫ኚ఩㛵ಀ࡜Ⰻ࠸୍⮴ࢆ♧ࡋࡓࠋR ࣔࢹࣝ࡜ W ࣔࢹࣝࢆẚ㍑ࡍࡿ࡜㸪ึᮇᙧ≧࡜ṧ␃ᛂຊࢆ⊂❧࡟ᑟධࡍࡿᚑ᮶ࡢ
᪉ἲ࡛ࡣ㸪ᐇ㦂⤖ᯝࢆ㧗⢭ᗘ࡟෌⌧࡛ࡁ࡞࠸ࡇ࡜ࡀ෌☜ㄆࡉࢀࡓࠋ୍᪉㸪ṧ␃ᛂຊࢆ⪃៖ࡋ࡚࠸࡞࠸ D ࣔࢹࣝࡣ㸪W ࣔࢹࣝࡼࡾࡶ᭱኱Ⲵ㔜ࡀప࠿ࡗࡓࠋ
ᅗ 4 ࡟♧ࡍࡼ࠺࡟㸪౪ヨయ඲యࡀ㝆అࡍࡿ๓㸪Ⲵ㔜ࡀ⣙ 600kN ࡢ᫬Ⅼࡢᛂຊศᕸࢆ☜ㄆࡋࡓ࡜ࡇࢁ㸪W ࣔࢹ࡛ࣝࡣゅ⁐᥋㒊࿘㎶࡟⏕ࡌࡓ⁐᥋ᘬᙇᛂຊ
ࡀṧᏑࡋ࡚࠸ࡓࠋࡑࡢࡓࡵ㸪W ࣔࢹࣝᅗ 3 Ⲵ㔜㸫㖄┤ኚ఩㛵ಀࡢ᭱኱Ⲵ㔜ࡀ D ࣔࢹࣝࡼࡾࡶ㧗ࡃ࡞ࡗࡓ࡜⪃࠼ࡽࢀࡿࠋ
4. ࡲ࡜ࡵ
ṧ␃ᛂຊࡢᑟධ᪉ἲࡀ⁐᥋㗰ᵓ㐀㒊ᮦࡢᅽ⦰ᣲືࡢ⢭ᗘ࡟ཬࡰࡍᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ㸪୍㐃ࡢࢩ࣑࣮ࣗࣞࢩ
ࣙࣥࢆᐇ᪋ࡋࡓࠋ⁐᥋㐣⛬࡜㍕Ⲵ㐣⛬ࢆ㐃⥆ⓗ࡟ࢩ࣑࣮ࣗࣞࢩࣙࣥࡋ㸪⁐᥋ኚᙧ࡜ṧ␃ᛂຊࢆึᮇ୙ᩚ࡜ࡋ࡚⪃៖ࡍࡿࡇ࡜࡛㸪ᅽ⦰ᣲືゎᯒ࡟࠾ࡅࡿ⢭ᗘྥୖࡢྍ⬟ᛶࡀ♧၀ࡉࢀࡓࠋ

ᅗ 4 ᛂຊ≧ែ㸦Ⲵ㔜 600kN ᫬㸧ཧ⪃ᩥ⊩[1] ᘅ⏿ᖿே㸪㔝⃝ಟᖹ㸦2022㸧㸸⁐᥋ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡿṧ␃ᛂຊࢆᑟධࡋࡓ㗰༑Ꮠ᩿㠃ᰕࡢᅽ⦰ᣲືゎᯒ㸪⁐᥋Ꮫ఍඲ᅜ኱఍ㅮ₇ᴫせ 2022 ᖺᗘ⁐᥋Ꮫ఍᫓Ꮨ඲ᅜ኱఍㸪pp. 120-121.
[2] Cheng Y, Nozawa S, Hirohata M (2023): High-accurate FE simulation on compressive behaviour ofsteel cruciform column with welding imperfection. Finite Elements in Analysis and Design. 221, 103960.
ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁં߻ߑଆԿմੵָ෾໼ʥ

− 167 −

; ⥺ᅇᢡࢆ⏝࠸ࡓ⾲㠃ຍᕤᮦࡢ  ḟඖṧ␃ᛂຊ᥎ᐃἲࡢᇶ♏ⓗ᳨ウᕤᏛ㝔኱Ꮫ ᕤᏛ㒊 ᶵᲔࢩࢫࢸ࣒ᕤᏛ⛉ᑠᕝ 㞞
 ⫼ᬒ࠾ࡼࡧ┠ⓗᶵᲔຍᕤࡸ⁐ᑕ࡞࡝࡟ࡼࡾ⏕ࡌࡿᘬᙇṧ␃ᛂຊࡣ⑂ປᙉᗘࢆపୗࡉࡏࡿࠋ୍᪉ࠊྛ✀ࣆ࣮ࢽࣥࢢຍᕤ
࡞࡝ࡢ⾲㠃ᨵ㉁ᢏ⾡࡟ࡼࡾᅽ⦰ṧ␃ᛂຊࢆ୚࠼ࡿࡇ࡜ࡀ࡛ࡁࢀࡤࠊ⑂ປᙉᗘࢆྥୖࡉࡏࡿࡇ࡜ࡀ࡛ࡁࡿࠋ
㒊ᮦ⾲㠃࡟⏕ࡌࡿ㠀ᙎᛶࡦࡎࡳ࡟㉳ᅉࡋ࡚⏕ࡌࡿṧ␃ᛂຊศᕸࢆ㸱ḟඖⓗ࡟ホ౯ࡍࡿࡇ࡜ࡀ࡛ࡁࢀࡤࠊ
⾲㠃ຍᕤᮦࡢရ㉁ࡸಙ㢗ᛶࢆホ౯ࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋࡲࡓࠊ⾲㠃ຍᕤ࡟ࡼࡾ࡟⏕ࡌࡿṧ␃ᛂຊࡣኚᙧࡢ
ཎᅉ࡟ࡶ࡞ࡾࠊᑍἲ⢭ᗘ࡟ᙳ㡪ࢆཬࡰࡍࡇ࡜ࡀ࠶ࡿࠋྛ✀⾲㠃ຍᕤ᮲௳࡜ṧ␃ᛂຊ࡜ࡢ㛵ಀࢆᢕᥱࡍࡿ
ࡇ࡜ࡀ࡛ࡁࢀࡤࠊ㧗⢭ᗘ࡞ຍᕤࢆᐇ⌧ࡍࡿࡓࡵࡢຍᕤ᪉ἲࡢ᭱㐺໬ࢆ┠ᣦࡍ࢔ࣉ࣮ࣟࢳࡶྍ⬟࡜࡞ࡿࠋ⌧ᅾࠊᵝࠎ࡞ṧ␃ᛂຊ ᐃᢏ⾡ࡀ࠶ࡿࡀࠊ; ⥺ᅇᢡἲࡣ⾲㠃ࡢṧ␃ᛂຊࡋ࠿ ᐃࡍࡿࡇ࡜ࡀ࡛ࡁ࡞࠸ࠋ
㟁ゎ◊☻࡜ ; ⥺ᅇᢡἲ࡟ࡼࡿ ᐃࢆ⧞ࡾ㏉ࡋ࡚῝࠸⟠ᡤࡢṧ␃ᛂຊࢆィ ࡍࡿሙྜ࡟ࡣࠊ㟁ゎ◊☻࡟ࡼࡾṧ␃ᛂຊࡀゎᨺࡉࢀ࡚ࡋࡲ࠺ࡓࡵࠊᮏ᮶ࡢṧ␃ᛂຊࡢ್ࢆィ ࡍࡿࡇ࡜ࡀ࡛ࡁ࡞࠸ࠋ୰ᛶᏊᅇᢡἲࢆ
⏝࠸ࡿࡇ࡜࡛῝ࡉᩘ༑࣑ࣜࡲ࡛ࡢィ ࡀྍ⬟࡛࠶ࡿࡀࠊᑓ⏝ࡢ᪋タ࡛ࡋ࠿౑࠺ࡇ࡜ࡀ࡛ࡁ࡞࠸ࡓࡵࠊ⌧ሙ࡛ࡢィ ࡀ࡛ࡁ࡞࠸ࠋࡲࡓࠊẚ㍑ⓗከࡃࡢィ ᫬㛫ࢆせࡋࠊィ ྍ⬟࡞ᑐ㇟≀ࡢ኱ࡁࡉ࡟ไ㝈ࡀ࠶ࡿࠋࡑࡇ࡛ࠊᅛ᭷ࡦࡎࡳ⌮ㄽ>@࡜ ; ⥺ᅇᢡἲࢆ฼⏝ࡋࠊẚ㍑ⓗ⡆౽࡟㒊ᮦ඲ᇦࡢṧ␃ᛂຊศᕸࢆồࡵࡿ᪉
ἲࡀ࠶ࡿ>@㸦௨ୗᮏᡭἲ࡜࿧ࡪ㸧ࠋᮏ◊✲࡛ࡣࠊᮏᡭἲࢆ⏝࠸࡚⾲㠃ຍᕤᮦࡢ㸱ḟඖṧ␃ᛂຊศᕸࢆẚ㍑ⓗ⢭ᗘࡼࡃ᥎ᐃࡍࡿࡇ࡜ࢆ┠ᣦࡋࠊẚ㍑ⓗ༢⣧࡞ࣔࢹࣝࢆ⏝࠸ࡓᩘ್ゎᯒ࡟ࡼࡾᮏᡭἲࡢ᭷ຠᛶࢆ♧ࡍࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ
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࠿ࡽ㸱ḟඖᅛ᭷ࡦࡎࡳࢆ᥎ᐃࡍࡿ㏫ゎᯒࡣḟᘧ࡜࡞ࡿࠋ
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ࡓࡔࡋࠊࡇࡢሾܴሿାࡣࠊ⾜ิሾܴሿࡢ࣒࣮࢔࣭࣮࣌ࣥࣟࢬ୍⯡㏫⾜ิ࡛࠶ࡿࠋ㒊ᮦ⾲㠃ࡢᙎᛶࡦࡎࡳࡣࠊ; ⥺ᅇᢡἲ࡟࡚㠀◚ቯ࡟ ᐃ࡛ࡁࡿࡓࡵࠊ㒊ᮦ඲యࡢᅛ᭷ࡦࡎࡳࢆ㠀◚ቯ࡛ồࡵࡿࡇ࡜ࡀ࡛ࡁࡿࠋࡑࡋ࡚ࠊ
᥎ᐃࡋࡓᅛ᭷ࡦࡎࡳࢆ᭷㝈せ⣲ࣔࢹࣝ࡟㈇Ⲵࡍࡿࡇ࡜࡛ࠊ㸱ḟඖṧ␃ᛂຊศᕸࢆ⟬ฟࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋ
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⪃࠼ࡽࢀ࡚࠸ࡿࠋࡑࡇ࡛ࠊཌࡉ᪉ྥ࡟ศᕸࡍࡿᅛ᭷ࡦࡎࡳࢆ࢞࢘ࢫ㛵ᩘ࡜ࢳ࢙ࣅࢩ࢙ࣇከ㡯ᘧࢆ᥃ࡅྜ
ࢃࡏࡓ㛵ᩘ࡟ࡼࡾ㏆ఝࡋ࡚㏫ゎᯒࢆ⾜ࡗࡓࠋ− 168 −

 ᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥ
 ᭷㝈せ⣲ࣔࢹࣝᑐ㇟࡜ࡍࡿࣔࢹࣝࡣᅗ㸯࡟♧ࡍࣔࢹ࡛ࣝ࠶ࡾࠊຍᕤ⥺㸦[ PP㸧ࢆ୰ᚰ࡜ࡋ࡚ᑐ⛠࡛࠶ࡿ࡜ࡋ㸪ࡲ
ࡓ \ PP ࡟ᑐࡋ࡚ࡶᑐ⛠࡞  ࣔࢹࣝ࡜ࡋࡓࠋຍᕤ㒊ࡣࠊ ӌ [ ӌ PP㸪 ӌ \ ӌ PP㸪] 
PP ࡜ࡋࠊ࣮ࣞࢨ࣮ࢩࣙࢵࢡࣆ࣮ࢽࣥࢢຍᕤࢆ᝿ᐃࡋࡓࠋᮦ㉁ࡣࢫࢸࣥࣞࢫ〇࡜ࡋ࡚ࠊࣖࣥࢢ⋡ *3Dࠊ࣏࢔ࢯࣥẚ  ࡜ࡋࠊ⠇Ⅼᩘ࡜せ⣲ᩘࡣࡑࢀࡒࢀ  ࡜  ࡛࠶ࡿࠋᐇ㝿࡟ࡣ ; ⥺ᅇᢡἲ࡟ࡼࡿ⾲㠃ィ ࡢ㝿࡟ィ ㄗᕪࡀ⏕ࡌࡿࡇ࡜ࢆ⪃៖ࡋࠊࡇࡇ࡛ࡣᶆ‽೫ᕪ  03D ࡢṇつศᕸ࡟ᚑ࠺஘ᩘࢆṇゎࡢ⾲㠃ṧ␃ᛂຊࡢ್࡟௜୚ࡋࠊࡑࡢ್࠿ࡽᅛ᭷ࡦࡎࡳࢆ᥎ᐃࡋࡓࠋ
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ᅗ  ⾲㠃ຍᕤᮦࡢ᭷㝈せ⣲ࣔࢹࣝ       ᅗ  ṇゎࡢṧ␃ᛂຊ࡜᥎ᐃ⤖ᯝ࡜ࡢẚ㍑
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୰ᛶᏊࢆ⏝࠸ࡎࠊ; ⥺ᅇᢡἲ࡜ᅛ᭷ࡦࡎࡳ⌮ㄽࢆ⏝࠸࡚㒊ᮦ඲ᇦࡢ㸱ḟඖṧ␃ᛂຊศᕸࢆ㠀◚ቯホ౯ࡍࡿ᪉ἲࡀ࠶ࡿࠋࡇࡢ᪉ἲࢆ⾲㠃ᨵ㉁ᮦࡸ⾲㠃ຍᕤᮦ࡟ᑐࡋ࡚㐺⏝࡛ࡁࡿࡇ࡜ࢆ┠ᣦࡋ࡚ࠊᩘ್ゎᯒ࡟ࡼࡾࡑࡢ᭷ຠᛶࡢ᳨ドࢆ⾜ࡗࡓࠋࢳ࢙ࣅࢩ࢙ࣇከ㡯ᘧ࡜࢞࢘ࢫ㛵ᩘࢆ㔜ࡡྜࢃࡏࡓᘧ࡟ࡼࡾᅛ᭷ࡦࡎࡳ
ࢆ㏆ఝࡋ࡚᥎ᐃࢆ⾜ࡗࡓ࡜ࡇࢁࠊẚ㍑ⓗ⢭ᗘࡢࡼ࠸ゎࡀᏳᐃⓗ࡟ᚓࡽࢀࡓࠋ
௒ᚋࠊᮏᡭἲࢆᐇ㝿ࡢ⾲㠃ᨵ㉁ᮦ࡟ᑐࡋ࡚㐺⏝ࡋࠊࡑࡢ᭷ຠᛶࢆ♧ࡍࡇ࡜ࡀồࡵࡽࢀࡿࠋࡲࡓࠊᵝࠎ࡞ᙧ≧ࡢ㒊ᮦ࡟ᑐࡋ࡚ᮏᡭἲࢆ㐺⏝࡛ࡁࡿࡼ࠺࡟ࡍࡿࡇ࡜ࡶ㔜せ࡛࠶ࡿࠋ
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㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬タィᏛศ㔝㸧

− 169 −

◚ቯ㠎ᛶヨ㦂ࡢ෭༷㐣⛬ࢩ࣑࣮ࣗࣞࢩࣙࣥ
ᾏୖᢏ⾡Ᏻ඲◊✲ᡤ  ᑠἑ ໶ ᴫせ ◚ቯ㠎ᛶヨ㦂࡛ࡣヨ㦂๓࡟୍ᐃ᫬㛫ࡢ෭༷ཬࡧ

ᗘ⟶⌮ࡀồࡵࡽࢀ࡚࠸ࡿ㸬⌧⾜ࡢ๫࡛࠶ࡿ࡜⪃࠼ࡓ⏦ㄳ⪅ࡣᩘ⌮ࣔࢹࣝ࡟ᇶ࡙ࡁྜ⌮ⓗ࡞ᗘ⟶⌮᫬㛫ࡣ㐣ᗘ⟶⌮᫬㛫ࢆᑟฟࡋ㸪ࡑࡢ᭷ຠᛶࢆ෭༷ヨ㦂࡟ࡼࡗ᳨࡚ドࡋࡓ㸬ࡓࡔࡋ㸪ࡇࡢ᫬⏝࠸ࡓᩘ⌮ࣔࢹࣝࡣಖᏲⓗ࡞ホ౯ࢆ୚࠼ࡿࡶࡢࡢ㸪㠀ᖖ࡟༢⣧࡞ࡶࡢ࡛࠶ࡿࡇ࡜࠿ࡽ㸪୪⾜ࡋ࡚ࡼࡾᐇ㝿࡟๎ࡋࡓࣔࢹ࡛ࣝࡢᩘ್ゎᯒࡶᐇ᪋ࡍ࡭ࡁ࡜⪃࠼ࡿ㸬 ࡑࡇ࡛㸪◚ቯ㠎ᛶヨ㦂࡟࠾ࡅࡿ෭༷㐣⛬ࢆᶍᨃࡋࡓᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆᐇ᪋ࡋ㸪ᩘ⌮ࣔࢹࣝࡢྜ
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ୗ࡛⾜࠺ࡇ࡜࡜࡞ࡗࡓ㸬୍᪉㸪ᩘ⌮ࣔࢹࣝ࡟ᇶ࡙ࡃ

ᗘ⟶⌮᫬㛫ࡢᑟฟ㐣⛬ཬࡧ᭱⤊ⓗ࡞ᥦ᱌ᘧࡢಟṇࢆ⾜ࡗࡓ࡜ࡇࢁ㸪ࡇࢀ࡟ࡘ࠸࡚ሗ࿌ࡍࡿ㸬 ఏ⇕ࣔࢹࣝࢆゎᯒⓗ࡟ゎࡃࡇ࡜࡟ࡼࡗ࡚ᚓࡽࢀࡿᯈཌ୰ᚰ㒊ࡢᗘ࡜ヨ㦂ᗘࡢㄗᕪࡀヨ㦂つ᱁࡟ࡼࡗ࡚チᐜࡉࢀ࡚࠸ࡿ ᗘㄗᕪ㸦7$ ႏ㸧ෆ࡟฿㐩ࡍࡿ᫬้㸦WUHT㸧࡟㛵ࡍࡿ᪉⛬ᘧࢆᘧ  ࡟♧ࡍ㸬
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㛵ᩘࡢᘬᩘࡀ࡜࡞ࡾ㸪ᐃ⩏ᇦࢆእࢀࡿࡇ࡜࠿ࡽ㐺ษ࡞⎔ቃୗ࡛ヨ㦂ࢆ⾜࠺㸦77 75㸧ሙྜ㸪ᑐᩘᗘ⟶⌮᫬㛫ࢆ┤᥋ᥦ♧ࡍࡿࡇ࡜ࡀ࡛ࡁ࡞࠸㸬 ࡇࢀࢆ㋃ࡲ࠼࡚ᘧ  ࡢྑ㎶ࡼࡾ኱ࡁࡃ㸪࠿ࡘWUHT࡟ࡘ࠸࡚ゎᯒⓗ࡟┤᥋ゎࡃࡇ࡜ࡀྍ⬟࡞↓㝈⣭ᩘࢆ୚࠼㸪ࡇࢀࢆゎࡃࡇ࡜࡟ࡼࡗ࡚᪂ࡓ࡞ ᗘ⟶⌮᫬㛫ࢆᚓࡿࡇ࡜ࢆヨࡳࡓ㸬− 170 −f§·Od ¦ H[S ¨  Q   S   WUHT ¸% F9
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 ᘧ  ࡢྑ㎶ࡣᘧ  ࡢྑ㎶࡜ẚ㍑ࡋ࡚ᑐᩘ㛵ᩘࡢᘬᩘ࡟ࢆຍ࠼ࡓⅬࢆ㝖ࡅࡤ୍⮴ࡋ࡚࠾ࡾ㸪㏻ᖖࡢヨ㦂᮲௳࡛࠶ࢀࡤ୧ᘧ࠿ࡽᚓࡽࢀࡿ ᗘ⟶⌮᫬㛫ࡣ࡯ࡰ୍⮴ࡍࡿ㸬ࡋ࠿ࡋ㸪ᘧ  ࡢྑ㎶ࡣᘧ  ࡢゎᯒゎࡼࡾᚓࡽࢀࡿWUHTࡢ್ࡼࡾ㧗࠸ࡇ࡜ࡀಖドࡉࢀ࡚࠾ࡾ㸪ຍ࠼࡚ඛ࡯࡝ࡢࡼ࠺࡟ᐊ
࡟࠾࠸࡚ࡶᑐᩘ㛵ᩘࡢᘬᩘࡀ࡜ࡣ࡞ࡽࡎ㸪ᥦ♧ࡉࢀࡿ⾜࠺㝿࡟ࡣ⎔ቃୗ࡛ヨ㦂ࢆ⾜࠺ሙྜᗘ⟶⌮᫬㛫ࡣ㸪ࡍ࡞ࢃࡕᐊ

⎔ቃୗ࡛ヨ㦂ࢆᗘ⟶⌮ࡣ୙せ࡛࠶ࡿ࡜࠸࠺ྜ⌮ⓗ࡞್ࡀ♧ࡉࢀࡿ㸬௨ୖࡢほⅬ࠿ࡽᘧ  ࡢᗘ⟶⌮᫬㛫ࢆᘧ  ࡢࡶࡢ࡬ಟṇࡍࡿࡇ࡜࡜ࡋࡓ㸬 ⤖ゝ ᙜึィ⏬࡛ࡣᐇヨ㦂∦ࣔࢹࣝࡢᗘᒚṔࢆᩘ್ゎᯒ࡟ࡼࡗ࡚ࢩ࣑࣮ࣗࣞࢩࣙࣥࡍࡿࡇ࡜ࢆணᐃࡋ࡚࠸

ࡓࡶࡢࡢ㸪ேⓗ࣭᫬㛫ⓗไ⣙࠿ࡽࡇࢀࡢᮏ᱁ⓗ࡞ᐇ᪋ࡣḟᖺᗘ௨㝆࡟⾜࠺ࡇ࡜࡜ࡋࡓ㸬୍᪉㸪ᩘ⌮ࣔࢹࣝ࡟ᇶ࡙ࡃᗘ⟶⌮᫬㛫ࡢᑟฟ㐣⛬ཬࡧᥦ᱌ᘧ࡟ࡘ࠸࡚ࡣࡼࡾྜ⌮ⓗ࡞ᡭἲࢆⓎぢࡋࡓࡇ࡜࠿ࡽࡇࢀ࡟ಟ

ṇࡍࡿࡇ࡜࡜ࡋࡓ㸬ಟṇᚋࡢᘧࡣゎᯒゎࡼࡾಖᏲⓗ࡞ホ౯ࢆ୚࠼ࡿࡇ࡜ࡀಖドࡉࢀ࡚࠸ࡿୖ࡟ᘧ୰࡛⏝࠸ࡿᑐᩘ㛵ᩘࡢᘬᩘࡀᐃ⩏ᇦ࠿ࡽእࢀࡿࡇ࡜ࡀ࡞ࡃ࡞ࡾ㸪ಟṇ๓࡜ẚ㍑ࡋ࡚Ꮫ⾡ⓗ㸪ᐇ㐠⏝ⓗ࡟ࡼࡾ㐺ษ࡞ࡶࡢ࡜࡞ࡗࡓ࡜⪃࠼ࡿ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜᵓ㐀໬タィᏛศ㔝㸧

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䜸䞊䝇䝔䝘䜲䝖⣔䝇䝔䞁䝺䝇㗰 7,* ⁐᥋⥅ᡭ䛾ప ୗ 6657 ヨ㦂䛻䛚䛡䜛◚ቯ䝯䜹䝙䝈䝮䛾ゎ᫂ᮾி኱ᏛᕤᏛ⣔◊✲⛉
5DIDHO0DJDOKDHVGH0HOR)UHLUH䠈ᕝ⏿཭ᘺ䛿䛨䜑䛻኱ᆺᴟప䝍䞁䜽䛿䚸ᾮ໬ኳ↛䜺䝇䚸ᾮ໬▼Ἔ䜺䝇䚸䜰䞁䝰䝙䜰䚸㓟⣲䚸஧㓟໬Ⅳ⣲䚸Ỉ⣲䛺䛹䚸䛥䜎䛦䜎䛺✀㢮䛾ὶయ⏝䛻タィ䛥䜜䛶䛝䛯䚹㉸ప䛷䛾సᴗ䛻䛿䚸ඃ䜜䛯㠌ᛶ䜢ᣢ䛴ᮦᩱ䛸䚸ಙ㢗ᛶ䛾㧗䛔᥋ྜ㒊䜢〇㐀䛩䜛䛯䜑䛾㐺ษ䛺䝥䝻䝉䝇䛜ᚲせ䛷䛒䜚䚸◚ᒁⓗ䛺୙Ᏻᐃ◚ቯ䛾䝸䝇䜽䜢ᅇ㑊䛩䜛ᚲせ䛜䛒䜛䚹䛥䜙䛻䚸㈓ⶶ䛥䜜䜛ὶయ䛻䜘䛳䛶䛿䚸⎔ቃຓ㛗๭䜜䠄($&䠅䛾ྍ⬟ᛶ䜢⪃៖䛧䛶䝍䞁䜽䜢タィ䛧䛺䛡䜜䜀䛺䜙䛺䛔䚹䛣䜜䛿䚸䜹䞊䝪䞁䝙䝳䞊䝖䝷䝹♫఍䛾┠ᶆ䛛䜙ồ䜑䜙䜜䛶䛔䜛Ỉ⣲㈓ⶶ䝅䝇䝔䝮䛾ሙྜ䛷䛒䜛䚹  ᪥ᮏ䜔௚䛾ከ䛟䛾ᅜ䚻䛸ྠᵝ䚸ᑡ䛺䛔䝇䝨䞊䝇䛷኱㔞䛾Ỉ⣲䜢᭱䜒ຠ⋡ⓗ䛛䛴㈝⏝ᑐຠᯝ䛾㧗䛔᪉ἲ䛷㈓ⶶ䛩䜛ᚲせ䛜䛒䜛䚹
5RQJ 䜙䠄䠅䜔 $QGHUVVRQ DQG *U|QNYLVW䠄䠅䛷㏙䜉䜙䜜䛶䛔䜛䜘䛖䛻䚸኱ᆺ䛾ᾮ໬Ỉ⣲㈓ⶶ䝍䞁䜽䜔䚸ᾮయỈ⣲䛸㧗ᅽỈ⣲㈓ⶶ䝅䝇䝔䝮䛾⤌䜏ྜ䜟䛫䛿䚸ᐇ⌧ྍ⬟䛺ゎỴ⟇䛸䛺䜚䛖䜛䚹䛧䛛䛧䚸㈓ⶶ᮲௳䛻䜘䜛Ỉ⣲⬤໬䛾㢧ᅾ໬䛜䛣䛾䝥䝻䝉䝇䛻䛚䛡䜛ᠱᛕⅬ䛷䛒䜛䛯䜑䚸Ᏻ౯䛺ᮦᩱ䜢⏝䛔䛶኱㔞䛾Ỉ⣲䜢㈓ⶶ䛩䜛䛣䛸䛿ᅔ㞴䛸⪃䛘䜙䜜䛶䛔䜛䚹ᮦᩱ䛻䛚䛡䜛Ỉ⣲⬤໬䠄+(䠅䛾᳨ウ䛿䚸໬Ꮫ⤌ᡂ䛰䛡䛷䛺䛟䚸␗䛺䜛䝭䜽䝻⤌⧊䛾ᣲື䜢⪃៖䛩䜛ᚲせ䛜䛒䜛䚹䝬䝹䝔䞁䝃䜲䝖䛸䝣䜵䝷䜲䝖䜢ྵ䜐஧┦㗰䛾 +( 䛾ᙳ㡪䛻䛚䛡䜛◚ቯ䝯䜹䝙䝈䝮䛿䚸.R\DPD 䜙  䛻䜘䛳䛶ㄪᰝ䛥䜜䚸䝬䝹䝔䞁䝃䜲䝖୰䛾๭䜜䛜᰾⏕ᡂ䛾➨୍ẁ㝵䛸ᐃ⩏䛥䜜䛯䚹୍᪉䚸7DR 䜙  䛿䚸䝣䜵䝷䜲䝖 Į 䜸䞊䝇䝔䝘䜲䝖 Ȗ 䛛䜙䛺䜛」ྜ⤌⧊䛻䛚䛡䜛䛝⿣䛾᰾Ⓨ⏕䛸ఏ᧛䜢♧䛧䛯䚹䛭䛾⤖ᯝ䚸஧┦㗰䛻䛚䛔䛶䚸ண䜂䛪䜏䝺䝧䝹䛜ప䛔ヨ㦂∦䛷䛿䝣䜵䝷䜲䝖┦䛻䛝⿣䛜Ⓨ⏕䛧䚸ண䜂䛪䜏䝺䝧䝹䛜㧗䛔ヨ㦂∦䛷䛿䜸䞊䝇䝔䝘 䜲䝖┦䛻䛝⿣䛜Ⓨ⏕䛩䜛䛣䛸䛜䜟䛛䛳䛯䚹䜎䛯䚸/HH 䜙  䛿䚸%&& ᚤ⣽ᵓ㐀䛾⑂ປᑑ࿨䜢䝰䝕䝹໬䛩䜛䛯䜑䛻⤫୍ຊᏛⓗ䜰䝥䝻䞊䝏䜢౑⏝䛧䛯䚹'MXNLF 䜙  䛜ㄝ᫂䛧䛶䛔䜛䜘䛖䛻䚸Ỉ⣲䛿䛥䜎䛦䜎䛺᪉ἲ䛷㗰䜢ຎ໬䛥䛫䜛ྍ⬟ᛶ䛜䛒䜚䚸+( 䛾䝯䜹䝙䝈䝮䜒⪃៖䛩䜛ᚲせ䛜䛒䜛䚹:DVLP 䜙䠄䠅䛜♧䛩䜘䛖䛻䚸Ỉ⣲䛿㗰䛾ረᛶ䜢㧗䜑䚸䛒䜛䛔䛿จ㞟ᛂຊ䜢పୗ䛥䛫䚸ᮦᩱ䜢◚ቯ䛧䜔䛩䛟䛩䜛䚹䛥䜙䛻䚸㧗᱓䜙䠄䠅䛿䚸686䚸
686䚸-,66&0䚸-,660% 䛺䛹䛾୍㒊䛾ᮦᩱ䛾◚ቯ䛜䚸‽㛤⿣◚ቯ㠃䛾ᙧᡂ䜢ㄏⓎ䛩䜛Ỉ⣲ㄏ㉳㏲ḟ䛝⿣㐍ᒎ䠄+,6&*䠅䝯䜹䝙䝈䝮䛻䜘䛳䛶ᨭ㓄䛥䜜䜛䛣䛸䜢♧䛧䛯䚹㧗᱓䜙䠄䠅䛿䚸/ 䛾◚᩿䛿㏻ᖖ䛾䝕䜱䞁䝥䝹ᙧᡂ䛻ᨭ㓄䛥䜜䜛䛸㏙䜉䛶䛔䜛䛜䚸ヨ㦂 ᗘ䛿Ỉ⣲⬤໬䛜᭱኱䛸䛺䜛᮲௳䛷䛿䛺䛛䛳䛯䚹/ 䜸䞊䝇䝔䝘䜲䝖⣔䝇䝔䞁䝺䝇㗰䛿䚸ᾮ໬Ỉ⣲㈓ⶶ䝍䞁䜽䝥䝻䝆䜵䜽䝖䛾➨୍ೃ⿵䛷䛒䜛䚹䛣䛾㗰䛿䚸௨๓䛻䜒ᇼ㇂䜙  䛻䜘䛳䛶ྠ䛨┠ⓗ䛷ホ౯䛥䜜䚸⚟ᒣ䜙  䚸3DUN 䜙  䚸+HUPV 䜙  䚸<XQ 䜙  䚸
6DQ0DUFKL 䜙  䚸6DQ0DUFKL  䚸0LFKOHU 䜙  䚸0LFKOHU 䜙  䚸䜰䝹䝞䝺䝇䜙  䛺䛹䚸ከ䛟䛾◊✲䛜䛥䜎䛦䜎䛺᪉ἲ䛷ㄪᰝ䛧䛶䛔䜛䚹⚟ᒣ䜙  䛿䚸 ⣔䜸䞊䝇䝔䝘䜲䝖⣔䝇䝔䞁䝺䝇㗰䛾 +( ឤཷᛶ䛜ヨ㦂ᗘ䛻䜘䛳䛶ኚ໬䛩䜛䛣䛸䜢♧䛧䛯䚹⚟ᒣ䜙  䚸3DUN 䜙  䚸䛚䜘䜃 )UHLUH 䜙  䛿䚸&䛛䜙 &䚸 & 䜈䛸ᗘ䛜ୖ᪼䛩䜛䛻䛴䜜䛶䚸Ỉ⣲⬤໬䛜㢧ⴭ䛻䛺䜛䛣䛸䜢♧䛧䛯䚹䛥䜙䛻䚸0LFKOHU DQG1DXPDQQ  䛿䚸⪏ +( ᛶ䛻䛚䛡䜛 1L ྵ᭷㔞䛸ඖ⣲䛾ᆒ୍ศᕸ䛾㔜せᛶ䜢ሗ࿌䛧䛶䛔䜛䚹䛧䛛䛧䚸㗰୰䛾
1L ⃰ᗘ䛜㧗䛟䛺䜛䛸䚸䜘䜚㧗౯䛻䛺䜛䚹ᥦ᱌䛥䜜䛶䛔䜛Ỉ⣲㈓ⶶ⏝኱ᆺ䝍䞁䜽䜢⪃៖䛩䜛䛸䚸〇㐀ᕤ⛬䛷Ⓨ⏕䛩䜛⁐᥋⥅ᡭ䛾ホ౯䛿䚸㈓ⶶ䝅䝇䝔䝮䛾ಙ㢗ᛶ䜢ಖド䛩䜛䛯䜑䛾㔜せ䛺ẁ㝵䛷䛒䜛䚹ᾮయỈ⣲䛾኱つᶍ㈓ⶶ䛻↔Ⅼ䜢ᙜ䛶䜛䛸䚸䛣䛾㗰䛾 7,* ⁐᥋䝥䝻䝉䝇䜢᥇⏝䛩䜛䛣䛸䛷䚸Ᏻᐃ䛧䛯ရ㉁䛷䚸㓟⣲䜔❅⣲䛺䛹䛾୙⣧≀䜢᭱ᑠ㝈䛻ᢚ䛘䛯⁐᥋⥅ᡭ䜢ᚓ䜛䛣

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䛸䛜䛷䛝䚸䜎䛯䚸⏕⏘ᛶ䜢ྥୖ䛥䛫䚸〇㐀ᕤ⛬䛷䛾ㄗᕪ䜢᭱ᑠ㝈䛻ᢚ䛘䜛䛣䛸䛜䛷䛝䜛䚹ᕝ➃䞉ᘅ℩䠄䠅䛿䚸⮬ື 7,* ⁐᥋䠄*7$:䠅䛻䜘䜚㧗ရ㉁䛺⁐᥋⥅ᡭ䛜ᚓ䜙䜜䚸኱ᆺᴟప䝍䞁䜽〇㐀ᕤ⛬䛾㠀◚ቯ᳨ᰝ䛾㎿㏿໬䛻ᐤ୚䛷䛝䜛䛣䛸䜢♧䛧䛯䚹䛧䛛䛧䚸䛣䛾⁐᥋䝥䝻䝉䝇䛷䛿䝕䝹䝍䞉䝣䜵䝷䜲䝖䛜ᙧᡂ䛥䜜䚸䛣䛾ᚤ⣽ᵓ㐀䛜㧗⃰ᗘ䛻䛺䜛䛸 +( ⪏ᛶ䛾ຎ໬䛻䛴䛺䛜䜛䛣䛸䛜 /XSSR 䜙䠄䠅䜔 -DFNVRQ 䜙䠄䠅䛻䜘䜚ᣦ᦬䛥䜜䛶䛔䜛䚹=KRX 䜙  䛜ᣦ᦬䛩䜛䜘䛖䛻䚸䝕䝹䝍䞉䝣䜵䝷䜲䝖䛸䜸䞊䝇䝔䝘䜲䝖䛾ቃ⏺䛿ᤕᤊ㒊఩䛷䛒䜚䚸䜎䛯䚸-DFNVRQ 䜙 䛜⤖ㄽ䛵䛡䜛䜘䛖䛻䚸䝕䝹䝍䞉 䝣䜵䝷䜲䝖䛸┦஫స⏝䛩䜛ኚᙧ䝞䞁䝗䛿䚸䝕䝹䝍䞉 䝣䜵䝷䜲䝖ቃ⏺䛷䛾ட⿣
᰾Ⓨ⏕䜢ㄏⓎ䛩䜛䚹䛣䛾ほⅬ䛸䛿␗䛺䜚䚸<XQ 䜙  䛿䚸䝕䝹䝍䝣䜵䝷䜲䝖䛜 / 䛾 +( 䜢పୗ䛥䛫䚸ᶵᲔⓗ཮ᬗ䜢㜼ᐖ䛩䜛䛣䛸䜢♧䛧䛯䚹ᑐ↷ⓗ䛻䚸=KRX 䜙  䛿䚸༙⮬ື㔠ᒓάᛶ䜺䝇䜰䞊䜽⁐᥋ 0$* 䛷〇㐀䛥䜜䛯⁐᥋ᮦ䛛䜙䚸␗䛺䜛䝕䝹䝍䞉䝣䜵䝷䜲䝖ᙧ≧䜢⪃៖䛧䛯⪏ +( ᛶ䜢ㄪᰝ䛧䛯䚹䛭䛾⤖ᯝ䚸䝕䝹䝍䞉䝣䜵䝷䜲䝖ᙧ≧䛻౫Ꮡ䛩䜛⏺㠃䛷䛾Ỉ⣲೫ᯒ䛾ቑຍ䛜䚸⪏ +( ᛶ䛻ᙳ㡪䛩䜛䛣䛸䛜ุ᫂䛧䛯䚹=KRX 䜙  䛿䚸㦵᱁ᆺ䝕䝹䝍䝣䜵䝷䜲䝖䛜 +( ឤཷᛶ䜢పୗ䛥䛫䜛䛸᥎ㄽ䛧䛯䚹䛭䜜䛻䜒䛛䛛䜟䜙䛪䚸686/ ᯈ䛸 7,* ⁐᥋䝥䝻䝉䝇䛛䜙〇㐀䛥䜜䛯⁐᥋㔠ᒓ䛾Ỉ⣲⬤໬䛻䜘䜛◚ቯ䝯䜹䝙䝈䝮䛾⌮ゎ䛻䛿䜼䝱䝑䝥䛜䛒䜛䚹䛣䛾䜘䛖䛺ㄪᰝ䛿䚸ᾮ໬Ỉ⣲䛾᪂䛧䛔㍺㏦䞉㈓ⶶ䝅䝇䝔䝮䛾䛯䜑䛾⁐᥋䝥䝻䝉䝇䜢ᨵၿ䞉㑅ᢥ䛩䜛䛯䜑䛾㔜せ䛺᝟ሗ䜢ᥦ౪䛩䜛䚹䛣䛾◊✲䛷䛿䚸686/ 䛾 7,* ⁐᥋㔠ᒓ䛾ᮦᩱᛶ⬟䜢ㄪᰝ䛧䚸◚ቯ䝯䜹䝙䝈䝮䜢ㄝ᫂䛩䜛䛯䜑䛻䚸㧗ᅽ⣧Ỉ⣲⎔ቃ䛷䛾ప

6657 ヨ㦂䛸ཧ↷⎔ቃ䛷䛾 6657 ヨ㦂䜢᥇⏝䛧䛶䛔䜛䚹ᾮ໬Ỉ⣲㈓ⶶ䝍䞁䜽䛿ႏ䛷సື䛩䜛䛻䜒䛛䛛䜟䜙䛪䚸⁐᥋㔠ᒓ䛾ホ౯䛿䚸Ỉ⣲⬤໬䛾㛵㐃඙ೃ䛜ほᐹ䛥䜜䜛ᗘ⠊ᅖ䛷ᐇ᪋䛥䜜䚸䝍䞁䜽䛾㐠㌿䛸ಖᏲ䛾ၥ㢟䜢ໟྵ䛩䜛䚹  䛥䜙䛻䚸ᮏ◊✲䛷䛿䚸䝥䝺䜂䛪䜏ヨ㦂∦䜢౑⏝䛩䜛䛣䛸䛻䜘䜚䚸ᕧ኱ᆅ㟈䛾ᙳ㡪䜢ຍ䛘䛶䛔䜛䚹␗ᖖ䛺㐠㌿᮲௳䛸䝯䞁䝔䝘䞁䝇୰䛾ᗘୖ᪼䜢᝿ᐃ䛧䚸ႏ䚸ႏ䚸ႏ䛷䚸ண䜂䛪䜏ヨ㦂∦䛸㠀ண䜂䛪䜏ヨ㦂∦䜢⏝䛔䛶ヨ㦂䛸ᮦᩱ◚ቯ䛾ゎᯒ䜢⾜䛳䛯䚹⁐᥋⥅ᡭ䛾⪏Ỉ⣲⬤໬ᛶ䛻ཬ䜌䛩ᕧ኱ᆅ㟈䜔␗ᖖ㐠㌿᮲௳䛾ᙳ㡪䜢ᥥ䛟䛯䜑䛻䚸. 䛷䝦䝸䜴䝮䜢ᐇ᪋䛧䛯  ẁ㝵䛾ண䜂䛪䜏䠄䠂䚸䠂䚸䠂䠅䜢⏝䛔䛯䚹Ỉ⣲䛾ຎ໬䛿ႏ䛚䜘䜃ႏ௜㏆䛷㢧ⴭ䛷䛒䜚䚸䛣䜜䜙䛿㏻ᖖ䚸᭱኱Ỉ⣲⬤໬䛾㡿ᇦ䛻㏆䛔䚹䛭䛣䛷䚸䛣䜜䜙䛾ᗘ䠄70+(䠅ᗘ䛷ヨ㦂䛧䛯ヨ㦂∦䜢㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾䛸 ('6 䜢⏝䛔䛶ㄪᰝ䛧䚸◚ቯ䝯䜹䝙䝈䝮䜢᫂䜙䛛䛻䛧䛯䚹ᮦᩱ䛚䜘䜃ヨ㦂᪉ἲᮏ◊✲䛷䛿䚸పṍ㏿ᗘᘬᙇ 6657 ヨ㦂䜢䚸ヨ㦂ᗘ䜢ไᚚ䛩䜛䛯䜑䛻౑⏝䛥䜜䜛✵Ẽ䛸❅⣲䝇䝥䝺䞊䜢ΰྜ䛧䛯ཧ↷⎔ቃ䛷ᐇ᪋䛩䜛䚹⎔ቃᨭ᥼๭䜜䠄($&䠅䜢ಁ㐍䛩䜛䛯䜑䚸$670 * 䛷᥎ዡ䛥䜜䛶䛔䜛䜘䛖䛻䚸ຍᅽ䛥䜜䛯⣧Ỉ⣲⎔ቃ䜢పṍ䜏㏿ᗘ䛷౑⏝䛧䚸ᮦᩱ䛾ᚤ⣽ᵓ㐀䛻䛚䛡䜛Ỉ⣲䛾ゎ㞳䛸྾཰䜢ྍ⬟䛻䛩䜛䚹ヨ㦂䛿䚸ᖹ⁥ヨ㦂∦䛾ᙎᛶ㒊ศ䛻 î V 䛾䜂䛪䜏㏿ᗘ䜢୚䛘䜛䜘䛖䛻ᐇ᪋䛧䛯䚹ྛヨ㦂ᗘ䛻䛴䛔䛶䚸㠀䜂䛪䜏䛾⁐᥋㔠ᒓヨ㦂∦  䛴䛸䚸䚸䚸䛻ᑐᛂ䛩䜛  䛴䛾ண䜂䛪䜏ヨ㦂∦䜢ヨ㦂䛧䛯䚹3H 䜂䛪䜏䛿䚸ᘬᙇヨ㦂ᶵ䛻䜘䜛୍㍈ຊ䛻䜘䛳䛶 . 䛷ᐇ᪋䛧䛯䚹ྜィ  ಶ䛾ヨ㦂∦䜢ႏ䚸ႏ䚸ႏ䛷ヨ㦂䛧䛯䚹䛩䛺䜟䛱䚸 ಶ䛿 03D 䛾Ỉ⣲⎔ቃ䛷䚸ṧ䜚䛾  ಶ䛿ᇶ‽⎔ቃ䛷⾜䛳䛯䚹6657 ヨ㦂䛾๓䛻䚸䛩䜉䛶䛾ヨ㦂∦䛾᩿㠃䜢䚸ண䜂䛪䜏ᡭ㡰䛻䜘䛳䛶୚䛘䜙䜜䛯ึᮇረᛶኚᙧ䜢⪃៖䛧䛶 ᐃ䛧䛯䚹⁐᥋ヨ㦂∦䛾௙ᵝ䜢ᅗ䛻♧䛩䚹ཌ䛥PP䛾686/䛾ᯈᮦ䛻஧㔜9⁁䛾㛤ඛຍᕤ䜢᪋䛧䚸䜺䝇䝍䞁䜾䝇䝔䞁䜰䞊䜽⁐᥋ *7$: 䝥䝻䝉䝇䛸ᕷ㈍䛾䝇䝔䞁䝺䝇㗰⏝⁐᥋Წ7*6/䜢⏝䛔䛶⁐᥋䛧䛯䚹⾲  䛻㗰ᯈ䛸⁐᥋Წ䛾໬Ꮫ⤌ᡂ䜢♧䛩䚹⁐᥋⥅ᡭ䛿䚸ධ⇕ 䡚 N-FP䚸⁐᥋㏿ᗘ 䡚 FPศ䛷➨  ഃ䠄㛤ඛ䛜㛗䛔᪉䠅䛻  䝟䝇䚸ධ⇕ 䡚 N-FP䚸⁐᥋㏿ᗘ 䡚 FPศ䛷➨  ഃ䠄㛤ඛ䛜▷䛔᪉䠅䛻  䝟䝇⾜䛳䛯䚹⁐᥋ᕤ⛬䛿䚸ᯈୖ䛾䝟䝇㛫ᗘ䛜  䉝䜢㉸䛘䛺䛔䜘䛖䛻ᐇ᪋䛧䛯䚹䛣䛾ᕤ⛬䛿䚸ᐇ㝿䛾ᖹᗏ෇⟄䝍䞁䜽〇స䜢䝅䝭䝳䝺䞊䝖䛩䜛䛯䜑䛻䚸ᆶ┤⁐᥋䛷⾜䜟䜜䛯䚹

− 173 −

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. 䛷䛾ᘬᙇヨ㦂䛚䜘䜃 57 䛷䛾◳䛥ヨ㦂䠄ᅗ 䠅䛻䜘䜛䛸䚸⁐᥋㔠ᒓ䠄:0䠅䛿ẕᮦ䛚䜘䜃 +$= 㡿ᇦ䜘䜚䜒◳䛔䚹ண䜂䛪䜏䜢ཷ䛡䛯ヨ㦂∦䛾ኚᙧ䛜୙ᆒ୍䛷䚸:0 䛷ఙ䜃䛜኱䛝䛟䚸+$=䠄⇕ᙳ㡪㒊䠅䜔ẕᮦ䛷ఙ䜃䛜ᑠ䛥䛔⌮⏤䛿䚸୺䛻:0䛾⤌⧊୙ᆒ୍ᛶ䛸ᣊ᮰ຠᯝ䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹䛧䛛䛧䚸䛣䜜䜢ṇ☜䛛䛴ᐃ㔞ⓗ䛻ㄝ᫂䛩䜛䛣䛸䛿ᅔ㞴䛷䛒䜛䚹䛥䜙䛻䚸᩿㠃䛻䜒୙ᆒ୍䛺ረᛶኚᙧ䛜ほᐹ䛥䜜䛯䚹㏻ᖖ䛸䛿␗䛺䜚䚸. 䛷ண䜂䛪䜏䜢୚䛘䛯⁐᥋㔠ᒓヨ㦂∦䛿୙ᆒ୍䛻ኚᙧ䛧䚸᩿㠃䜒୍㒊䛷ᴃ෇䛻䛺䛳䛯䚹䛣䛾ᴃ෇᩿㠃䛿䚸㠀ண䜂䛪䜏䛾ヨ㦂∦䜢ྵ䜐⁐᥋㔠ᒓヨ㦂∦䛾◚᩿㠃䛻䜒⌧䜜䛯䚹᫂䜙䛛䛻䚸ᅗ  䛾⁐᥋㔠ᒓヨᩱ䛿ゎᯒ䛜䜔䜔」㞧䛷䛒䜛䚹ཧ↷⎔ቃ䛷ヨ㦂䛧䛯䠂ண䜂䛪䜏ヨ㦂∦䛾᩿㠃䛾୙つ๎䛺ኚᙧ䜢౛♧䛩䜛䛯䜑䚸.䛷ண䜂䛪䜏䜢୚䛘䛯ᚋ䚸䝀䞊䝆㛗䛥䛾୰ኸ㒊䛾┤ᚄ䜢 ᐃ䛧䛯䛸䛣䜝䚸ᅗ  䛻♧䛩䜘䛖䛻᭱ᑠ䛷 PP䚸᭱኱䛷 PP 䛷䛒䛳䛯䚹ヨ㦂∦䛜◚᩿䛧䛯ᚋ䛾┤ᚄ䛿䚸᭱኱䛜PP䛷䚸᭱ᑠ䛿PP䛷䛒䛳䛯䚹䛣䛣䛷㔜せ䛺䛣䛸䛿䚸⁐᥋㔠ᒓヨ㦂∦䛿䝀䞊䝆㛗䛥䛾୰ኸ௜㏆䛷◚᩿䛧䛶䛔䜛䛣䛸䛷䛒䜛䚹䛧䛯䛜䛳䛶䚸ヨ㦂๓䛾䝀䞊䝆㛗䛥䛾୰ኸ㒊䛷䛾ᐃ್䜢⏝䛔䛶䚸

6657 ヨ㦂๓䛾ึᮇ᩿㠃䜢ィ⟬䛧䛯䚹ḟ䛻䚸䛣䛾ึᮇ᩿㠃✚䛸ᇶ‽ヨ㦂∦䛾᭱⤊᩿㠃✚䜢ᴃ෇ᙧ≧䛸䛧䛶ィ⟬䛧䚸䛭䛾㠃✚䜢ḟᘧ䛷᥎ᐃ䛧䛯䚹ߨ‫ܤܣ‬䛣䛣䛷䠈$ 䛸 % 䛿䠈᭱኱┤ᚄ䛸᭱ᑠ┤ᚄ䛾༙ศ䛷䛒䜛䚹Ỉ⣲⎔ቃୗ䛷
ヨ㦂䛥䜜䛯ヨ㦂∦䛾ሙྜ䚸ட⿣䛿ഃ᪉⾲㠃䛻ㄏᑟ䛥䜜䚸᭱⤊᩿㠃✚䛿䜘䜚୙ᆒ୍䛻䛺䜚䚸◚᩿㠃ୖ䛻ᢡ䜜⥺䜢ᘬ䛟䛣䛸䛻䜘䛳䛶ィ⟬䛥䜜䛯䚹− 175 −D  䝥䝺䝇䝖䝺䜲䞁ᚋ䚸6657 䝔䝇䝖๓E  6657 䝔䝇䝖ᚋ᭱኱┤ᚄ䠖PP᭱኱┤ᚄ䠖PP᭱ᑠᚄ䠖PP᭱ᑠᚄ䠖PP

ᅗ6657ヨ㦂๓䛻.䛷ண䜂䛪䜏䜢୚䛘䛯ヨ㦂∦䛾෗┿䚹E 9+;㢧ᚤ㙾䛷ྍど໬䛧䛯ᇶ‽
6657ヨ㦂ᚋ䛾ண䜂䛪䜏ヨ㦂∦䛾ഃ㠃䚹6657 ヨ㦂⤖ᯝཧ↷ヨ㦂䝕䞊䝍䛻䛴䛔䛶䛿䚸ヨ㦂∦䛾୰ኸ㒊䛻䛚䛡䜛 6657 ヨ㦂┤๓䛾᩿㠃䜢⏝䛔䛶ᛂຊ䜢⟬ฟ䛧䛯䚹ヲ⣽䛻䛿䠈ண䜂䛪䜏䛾䛺䛔ヨ㦂∦䛾බ⛠ᛂຊ䛸බ⛠䜂䛪䜏䛾䜾䝷䝣䛿䠈୍⯡ⓗ䛷䜘䛟▱䜙䜜䛯ᡭ㡰䛻ᚑ䛳䛶సᡂ䛧䛯䚹୍᪉䠈ண䜂䛪䜏䛾䛒䜛ヨ㦂∦䛾᩿㠃䛿䠈䝖䝢䝑䜽䛻♧䛩䜘䛖䛻䠈䝀䞊䝆㛗䛥䛾୰ኸ㒊䛾᭱ᑠᚄ䛸᭱኱ᚄ䜢⏝䛔䛶ᴃ෇䛸䛧䛶ィ⟬䛧䛯䚹ḟ䛻䠈ண䜂䛪䜏䜢୚䛘䛯ヨ㦂∦䛻䛴䛔䛶䛿䠈ᘬᙇヨ㦂ຊ䜢䜂䛪䜏᩿㠃䛷㝖䛧䠈ண䜂䛪䜏㔞䛻ᛂ 䛨䛶䜾䝷䝣䜱䝑䜽䝇䜂䛪䜏䛾ึᮇබ⛠್䜢䝅䝣䝖䛧䛯䚹䛥䜙䛻䚸Ỉ⣲⎔ቃୗ䛷ヨ㦂䛧䛯ヨ㦂∦䛾㠃✚ῶᑡ䠄5$䠅䛿䚸䝖䝢䝑䜽  䛷㏙䜉䛯䜘䛖䛻䚸ヨ㦂∦䛾ቃ⏺䛷Ỉ⣲䛻䜘䛳䛶ㄏⓎ䛥䜜䜛䜽䝷䝑䜽䛻䜘䛳䛶ᘬ䛝㉳䛣䛥䜜䜛୙つ๎ᛶ䜢⪃៖䛩䜛䛯䜑䛻䚸䝫䝸䝷䜲䞁ἲ䜢౑⏝䛧䛶䚸ᮏ◊✲䛷䛿䜘䜚ṇ☜䛻ᐃ䛧䛯䚹

㝆అᙉ䛥䠄<6䠅䜔ᘬᙇᙉ䛥䠄76䠅䛾䜘䛖䛺⁐᥋㔠ᒓ䛾ᶵᲔⓗ≉ᛶ䛿䚸⁐᥋㔠ᒓ䛾Ỉ⣲⬤໬䛾᫂☜䛺ഴྥ䜢♧䛥䛺䛛䛳䛯䚹Ỉ⣲䛻䜘䜛ᘏᛶపୗ䜢♧䛩䝟䝷䝯䞊䝍䛸䛧䛶䛿䚸┦ᑐ㠃✚ῶᑡ⋡䠄55$䠅䜔ఙ䜃⋡䛜䜘䜚ಙ㢗䛷䛝䜛䛣䛸䛿䜘䛟▱䜙䜜䛶䛔䜛䚹䛧䛛䛧䚸ண䜂䛪䜏䜢୚䛘䛯⁐᥋㔠ᒓ䛷䛿䚸㝆అᙉ 䛥䛚䜘䜃ᘬᙇᙉ䛥䛜┦ᑐⓗ䛻పୗ䛧䜎䛧䛯䚹ረᛶ䜂䛪䜏䛜ຍ䜟䜛䛸⪏ +( ᛶ䛻ᙳ㡪䛜ฟ䜛䛣䛸䜢♧䛩䜒䛾䛸䜒⪃䛘䜙䜜䜛䛜䚸䛭䛾ゎ᫂䛻䛿䛥䜙䛺䜛᳨ウ䛜ᚲせ䛷䛒䜛䚹Ỉ⣲୰䛷ヨ㦂䛧䛯ヨ㦂∦䛸ཧ↷⎔ቃ䛷ヨ㦂䛧䛯ヨ㦂∦䛾㝆అᙉᗘ䛾ẚ䛿ᖖ䛻௨ୖ䛷䛒䜚䚸䛣䛾ῶᑡ䛿䚸ᮌᮧ䜙  䛷ゝཬ䛥䜜䛶䛔䜛䜘䛖䛻䚸+( ᢬ᢠᛶ䛾௦䜟䜚䛻ヨ㦂䛛䜙䛾ኚᩘ䛻䜘䛳䛶䜒⏕䛨䜛ྍ⬟ᛶ䛜䛒䜛䚹

− 176 −

ᅗ㻌 ႏ䚸ႏ䚸ႏ䛻䛚䛡䜛 6657 ヨ㦂䛛䜙ᚓ䜙䜜䛯බ⛠ᛂຊ䛸බ⛠䜂䛪䜏䛾䜾䝷䝣䚹ᅗ  䛿䚸䜘䜚ṇ☜䛺㠃✚ῶᑡ⋡ 5$ 䛾್䜢ᚓ䜛䛯䜑䛾᪂䛧䛔ᡭἲ䜢⏝䛔䛯䚸Ỉ⣲⎔ቃ䛸ᇶ‽⎔ቃ䛷ヨ㦂䛧䛯⁐᥋㔠ᒓ䛾ྛ⤌䛾┦ᑐ㠃✚ῶᑡ⋡ 55$ 䜒♧䛧䛶䛔 䜛䚹ᅗ H 䛻䚸 䛴䛾ヨ㦂ᗘ䛻䛚䛡䜛㠃✚ῶᑡ⋡

5$ 䚸㝆అᙉ䛥 <6 䚸ᘬᙇᙉ䛥 76 䛾ẚ㍑ᅗ䜢♧䛧䜎䛩䚹Ỉ⣲⎔ቃ䛸ᇶ‽⎔ቃ䛻䛚䛡䜛 5$ 䛾ᕪ䛿䚸&䜘䜚䜒 & 䛾᪉䛜኱䛝䛟䛺䛳䛶䛔䜛䛣䛸䛜䜟䛛䜚䜎䛩䚹䛾ண䜂䛪䜏䜢ຍ䛘䛯⁐᥋㔠ᒓ䛜 & 䛷ண᝿እ䛾⤖ᯝ䜢♧䛧䛯௨እ䛿䚸ᘏᛶ䛿& 䛛䜙& 䜎䛷Ỉ⣲୰䛷పୗ䛧䚸& 䛷᭱ᑠ䛻䛺䛳䛯䚹㠀ண䜂䛪䜏⁐᥋㔠ᒓ䚸 䛚䜘䜃  䛾ண䜂䛪䜏⁐᥋㔠ᒓ䛿䚸 & 䛛䜙 & 䜎䛷ྠ⛬ᗘ䛾 55$ ್䜢♧䛧䛯䛜䚸䛾ண䜂䛪䜏⁐᥋㔠ᒓ䛿& 䛷䜘䜚㧗䛔㠃✚䛾ῶᑡ䜢♧䛧䚸& 䛷䜘䜚㧗䛔ຎ໬䜢♧䛧䛯䚹䛣䛾 ண䜂䛪䜏ヨ㦂∦䛾& 䛷䛾 55$ 䛾೫ᕪ䛿䚸䛣䛾✀䛾ヨ㦂∦䛻ᅛ᭷䛾㛗䛥䛻ἢ䛳䛯୙ᆒ୍䛺ረᛶኚᙧ䛻䜘䜛⤖ᯝ䛾䜀䜙䛴䛝䚸䜎䛯䛿ᛶ⬟䛾ᐇ㉁ⓗ䛺ྥୖ䛷䛒䜛ྍ⬟ᛶ䛜䛒䜛䛜䚸䛣䜜䜢㏙䜉䜛䛾䛿䜔䜔ᅔ㞴䛷䛒䜛䚹◚㠃ほᐹ䛚䜘䜃ഃ㠃እ㠃䛾ட⿣᳨ᰝ䛿䚸ᮦᩱᣲື䛾ุ᩿䜔Ỉ⣲⬤໬䛾඙ೃ䛾☜ㄆ䛻ᙺ❧䛴䚹䛸䛿䛔䛘䚸ᮏㄽᩥ䛾୺┠ⓗ䛿䚸䛣䛾ᗘ⠊ᅖ䛷䛿ண䜂䛪䜏㔞䜢ቑຍ䛥䛫䛶䜒ኚ໬䛧䛺䛔䛸ண᝿䛥䜜䜛◚ቯ䝯䜹䝙䝈䝮䜢グ㏙䛩䜛䛣䛸䛷䛒䜛䚹㠀ண䜂䛪䜏䛚䜘䜃 ண䜂䛪䜏䜢ຍ䛘䛯⁐᥋㔠ᒓ䜢䚸 & 䛷ヨ㦂䛧䛯ෆ㒊䛚䜘䜃እ㒊Ỉ⣲䛻䛴䛔䛶䛿䚸)UHLUH HW DO䛭䛾୰䛷䚸ヨ㦂∦䜢ෆ㒊Ỉ⣲䛷ヨ㦂䛧䛶䜒◚ቯ䝯䜹䝙䝈䝮䛿ኚ䜟䜙䛺䛔䛸㏙䜉䜙䜜䛶䛔䜛䚹䛧䛛䛧䚸Ỉ⣲䝏䝱䞊䝆䜔Ỉ⣲⎔ቃୗ䛷䛾 6657 ヨ㦂䛻䜘䜚䚸ヨ㦂∦ෆ㒊䛾Ỉ⣲ྵ᭷㔞䛜㧗䛟䛺䜛䛸䚸ຎ໬䛜㐍䜏䚸ヨ㦂∦䛾୰ᚰ䛻㏆䛔㒊ศ䛻ᑠ䛥䛺‽㛤⿣㡿ᇦ䛜ᙧᡂ䛥䜜䜛ྍ⬟ᛶ䛜䛒䜛䚹ᮏ◊✲䛾ヨ㦂∦䛷䛿䚸ணഛ඘㟁ἲ䛻䜘䛳䛶Ỉ⣲ྵ᭷㔞䛜㧗䛟䛺䜛௦䜟䜚䛻䚸 ᗘ䛸ண䜂䛪䜏㔞䛻䜘䛳䛶ຎ໬䝺䝧䝹䛜ኚ໬䛧䛯䚹− 177 −

◚᩿㠃ほᐹ
55$ ್䛛䜙ண᝿䛥䜜䜛䜘䛖䛻䚸 & 䛷䛾Ỉ⣲⬤໬䛻䜘䛳䛶ᮦᩱᛶ⬟䛻ᙳ㡪䛿䛺䛟䚸◚㠃ほᐹ䛛䜙⁐᥋㔠ᒓヨ㦂∦䛿᏶඲䛻ᘏᛶ◚ቯ䛾እほ䜢᭷䛧䛶䛔䜛䛣䛸䛜☜ㄆ䛥䜜䛯䚹୰ኸ㒊䛻䛿኱䛝䛺䝕䜱䞁䝥䝹䛜ほᐹ䛥䜜䚸䜎䛯᭱኱䛫䜣᩿ᛂຊ㠃䛻ἢ䛳䛶䚸ᘬᙇヨ㦂∦䛾඾ᆺⓗ䛺䜹䝑䝥䝁䞊䞁◚ቯ䛻㢮ఝ䛧䛯䚸ᑠ䛥䛟䛶ὸ䛔䝕䜱䞁䝥䝹䜢క䛖ᘏᛶ◚ቯ䛜ほᐹ䛥䜜䛯䚹ᚑ䛳䛶䚸ᮏ◊✲䛷䛿䛣䜜䜙䛾◚ቯ䛿ㄪᰝᑐ㇟䛸䛿䛧䛺䛔䚹䛥䜙䛻䚸ᅗ䛻♧䛩䜘䛖䛻䚸䛩䜉䛶䛾ヨ㦂∦䛾ഃ㠃እ⾲㠃䜒㢧ᚤ㙾䛷᳨ᰝ䛧䛯䚹ᅗ  䛻♧䛩䜘䛖䛻䚸ႏ
䛸 ႏ䛾Ỉ⣲⎔ቃୗ䛷ヨ㦂䛧䛯ヨ㦂∦䛷䛿䚸ഃ᪉እ㠃䛻䛝⿣䛜Ⓨ⏕䛧䛯䛾䛻ᑐ䛧䚸 ႏ䛷ヨ㦂䛧䛯ヨ㦂∦䛷䛿䚸ண䜂䛪䜏㔞䜢ቑຍ䛥䛫䛶䜒䚸䛣䛾䜘䛖䛺ഃ᪉䛝⿣䛿Ⓨ⏕䛧䛺䛛䛳䛯䚹䛣䛾䜘䛖䛺ഃ᪉䛝⿣䛜ᙧᡂ䛥䜜䜛⌮⏤䛿䚸Ỉ⣲⬤໬⌧㇟䛜Ỉ⣲䜢ྵ䜐⎔ቃୗ䛷Ⓨ⏕䛧䚸Ỉ⣲䛜ゎ㞳䛧䛶ഃ᪉እ⾲㠃䛛䜙ᮦᩱ⤌⧊ෆ䛻౵ධ䛧䚸䝞䜴䞁䝗䜢ᙅ䜑䜛䛛䜙䛷䛒䜛䚹䛭䛧䛶䚸Ỉ⣲⃰ᗘ䛜㧗䛟䛺䜛䛻䛴䜜䛶ᒁᡤⓗ䛺‽㛤⿣ᛂຊ᢬ᢠ䛜పୗ䛧䚸䛝⿣䛾ᙧᡂ䛸ഃ᪉⾲㠃㏆ഐ䜈䛾㐍ᒎ䛜ຓ㛗䛥䜜䜛䚹ᅗ㻌 6657 ヨ㦂∦䛾እഃ⾲㠃䛸▮༳䛷♧䛧䛯ᶓ᪉ྥ䛾ட⿣D ႏ䛾Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯 ண䜂䛪䜏⁐᥋㔠ᒓ䛾ഃ᪉⾲㠃᳨ᰝ䛾 ' ⏬ീE ႏ䛾Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯 ண䜂䛪䜏⁐᥋㔠ᒓ䛾 ' ⏬ീF ႏ䛾Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯 ண䜂䛪䜏⁐᥋㔠ᒓ䛾 ' ⏬ീ− 178 −ᅗ 㻌 Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯ヨ㦂∦䛾◚᩿㠃䠖D   & 䛷ヨ㦂䛧䛯ண䜂䛪䜏䛾䛺䛔ヨᩱ䛾⾲㠃䛻ぢ䜙䜜䜛䛟䜌䜏䚹E & 䛷ヨ㦂䛧䛯ண䜂䛪䜏䛾䛺䛔ヨᩱ䛾⾲㠃䛻ぢ䜙䜜䜛኱䛝䛺‽㛤ཱྀ㒊䚹F & 䛷ヨ㦂䛧䛯ண䜂䛪䜏䛾䛺䛔ヨᩱ䛾⾲㠃䛻ぢ䜙䜜䜛䛟䜌䜏䛸‽㛤ཱྀ㒊䛾ΰᅾ䠗I & 䛾Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯 ண䜂䛪䜏ヨ㦂∦䛾᭱⾲㠃䛾ᑠ䛥䛟䛶ὸ䛔䛟䜌䜏䛸‽㛤⿣䝟䝍䞊䞁䚹   K  )UHLUH 䜙  䛿䚸ணഛ䜂䛪䜏䛾䛺䛔⁐᥋㔠ᒓ䛻䛴䛔䛶䚸㉥༳䛷ᙉㄪ⾲♧䛧䛯ᨃఝ㛤⿣䝟䝍䞊䞁䛾ෆഃ䛻䝕䜱䞁䝥䝹䜢ᣢ䛴ΰྜ䝌䞊䞁 L  )UHLUH䜙  䛿䚸ணഛ඘㟁䛧Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯 ணഛ䜂䛪䜏ヨ㦂∦䛻䛴䛔䛶䚸㉥༳䛷ᙉㄪ⾲♧䛧䛯䝕䜱䞁䝥䝹䝟䝍䞊䞁䛾ෆഃ䛻ᨃఝ㛤⿣䝟䝍䞊䞁䛾䝇䝖䝷䜲䝥䜢ᣢ䛴ΰྜ䝌䞊䞁䚹ᅗ  E 䚸 G 䚸 I 䛷䛿䚸& 䛸& 䛷ヨ㦂䛧䛯ヨ㦂∦䛾◚᩿㠃䛾ቃ⏺௜㏆䛻‽㛤⿣㒊఩䜢ほᐹ䛩䜛䛣䛸䛜䛷䛝䜛䚹Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯䛣䜜䜙䛾ヨ㦂∦䛷䛿䚸‽㛤⿣䝟䝍䞊䞁䛜ᗈ䛜䛳䛶䛔䜛䛜䚸◚ቯ㠃䛾 ௨ୖ
䜢༨䜑䜛䝕䜱䞁䝥䝹䛜㢧ⴭ䛻Ꮡᅾ䛧䛶䛔䜛䚹୍⯡䛻䚸䝕䜱䞁䝥䝹䛾኱䛝䛥䛸䝪䜲䝗䛾Ꮡᅾ䛿䚸& 䛷ヨ㦂䛧䛯ヨ㦂∦䛻ẚ䜉䛶ῶᑡ䛧䛶䛚䜚䚸䛣䜜䛿䛚䛭䜙䛟Ỉ⣲ຠᯝ䛻䜘䛳䛶ㄏⓎ䛥䜜䛯䜒䛾䛷䚸Ỉ⣲䛜ᒁᅾረᛶ䜢ಁ㐍䛩
䜛䠄+(/3䠅䝯䜹䝙䝈䝮䜢㏻䛨䛶ᘏᛶ◚ቯẁ㝵䛻䜒ᙳ㡪䜢ཬ䜌䛩ྍ⬟ᛶ䛜䛒䜛䚹Ỉ⣲⎔ቃୗ䛷䜂䛪䜏䜢ຍ䛘䛯ᘬᙇヨ㦂∦ෆ㒊䛾Ỉ⣲⃰ᗘ䛿ᆒ୍䛷䛿䛺䛟䚸⾲㠃㏆ഐ䛷䛿⤌⧊୰䛾Ỉ⣲⃰ᗘ䛜㧗䛟䛺䜛䛣䛸䛿䜘䛟▱䜙䜜䛶䛔䜛䚹䛣䛾ᴫᛕ䛿䚸◚᩿㠃䛻‽㛤⿣ᖏ䜢ᙧᡂ䛩䜛䜘䛖䛻ᘏ䜃䜛ᶓட⿣䛾ᙧᡂ䜢ㄝ᫂䛩䜛䜒䛾䛷䛒䜛䚹䛒䜛ᶓ᪉ྥ䛾ட⿣䛾኱䛝䛥䛻䛺䜛䛸䚸ᅗ  F  G  H  J  K  L 䛻♧䛩䜘䛖䛻䚸䝕䜱䞁䝥䝹䛜ΰᅾ䛩䜛‽㛤⿣䝟䝍䞊䞁䛜ヨ㦂∦୰ᚰ㒊䜎䛷ᗈ䛜䜛䚹䛣䛾ᨃ䜈䛝㛤䝟䝍䞊䞁䛾ᘏ㛗⥺ୖ䛷䚸䝕䜱䞁䝥䝹䝟䝍䞊䞁䛾䜏䛜Ꮡᅾ䛩䜛㡿ᇦ䛸ᨃ䜈䛝㛤䝟䝍䞊䞁䜢♧䛩㡿ᇦ䜢ศู䛩䜛䛣䛸䛜䛷䛝䛯䚹䛧䛛䛧䠈ΰྜ㡿ᇦ䛻ศ㢮䛥䜜䛯㡿ᇦ䛷䛿䠈䝕䜱䞁䝥䝹䛾ศᕸ䛜‽㛤⿣㡿ᇦ䛾ෆഃ䛻ᑠ䛥䛺⦤ᶍᵝ䛾䜘䛖䛻ศᕸ䛧䛶䛚䜚䠈ᮦᩱ䛾◚ቯ䝰䞊䝗䜢⌮ゎ䛩䜛ୖ䛷㔜せ䛺≉ᚩ䛸⪃䛘䜙䜜䜛䚹䛭䛣䛷䚸◚ቯ㠃䜢  䛴䛾䝌䞊䞁䛻ศ䛡䚸‽㛤⿣㡿ᇦ䛾䜏䚸ΰྜ㡿ᇦ䚸ᘏᛶ㡿ᇦ䛸ᐃ⩏䛧䛯䚹− 179 −

䛥䜙䛻䚸 ႏ䛾Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯 ண䜂䛪䜏⁐᥋㔠ᒓ䛷䛿䚸ᶓ๭䜜䠄ᅗ  D 䠅䜔◚᩿㠃䛾‽㛤⿣䝟䝍䞊䞁ᣑ኱䠄ᅗ I 䠅䛺䛹䚸Ỉ⣲⬤໬䛾ᙳ㡪䛜ㄆ䜑䜙䜜䛯䚹55$ ್䛿 䜢㉸䛘䛶䛔䜛䛜䚸䛝⿣㐍ᒎ㏿ᗘ䛾䛥䜙䛺䜛ㄪᰝ䛜ᚲせ䛷䛒䜛䛯䜑䚸ႏ䛾 ண䜂䛪䜏⁐᥋㔠ᒓ䛷ᨵၿ䛜㉳䛣䛳䛯䛸᩿ゝ䛩䜛䛾䛿ጇᙜ䛷䛿䛺䛔䚹䛧䛛䛧䚸䛣䛾ヨ㦂∦䛾◚㠃䛻䛿‽㛤⿣䛝⿣䛜㐍ᒎ䛧 䛶䛔䜛䛣䛸䛛䜙䚸䛣䛾 55$ ್䛜 ႏ䛷䛾Ỉ⣲⬤໬䛻ᑐ䛩䜛ච ␿ᛶ䜢♧䛩䛸䛿⪃䛘䛻䛟䛔䚹䜎䛯䚸ᅗ  J 䚸 K 䚸 L 䛷䛿䚸‽㛤⿣䝟䝍䞊䞁ෆ㒊䛾ΰྜᖏ䛸䝕䜱䞁䝥䝹䛾ศᕸ䛜ᙉㄪ䛥䜜䛶䛔䜛䚹䛣䛾ΰྜᖏ䛾ᙧᡂ䛻䛿⌮⏤䛜䛒䜛䛸⪃䛘䜙䜜䚸䛝⿣䛾㐍ᒎ䛿㑅ᢥⓗ䛺‽㛤⿣⤒㊰䛻䜘䛳䛶ㄝ᫂䛷䛝䜛䚹ᚑ䛳䛶䚸䛣䛾䝔䞊䝬䛻䛴䛔䛶䜘䜚῝䛔ㄪᰝ䜢⾜䛖ᚲせ䛜䛒䜛䚹
◚ቯ䝯䜹䝙䝈䝮⪃ᐹ
6657 ヨ㦂∦䛾⦪᩿㠃ほᐹ
6657 ヨ㦂∦䜢㛗ᡭ᪉ྥ䛻ษ᩿䛧䛶䝃䞁䝥䝹䜢ᙧᡂ䛧䚸㢧ᚤ㙾䛸 6(0 ⿦⨨䛷ほᐹ䛧䛯䚹)UHLUH 䜙  䛜Ⓨ⾲䛧䛯䚸Ỉ⣲䝏䝱䞊䝆䛧䛯⁐᥋㔠ᒓ䜢Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯䜒䛾䜒䚸ᮏ◊✲䛷ศᯒ䛧䛯䚹䝁䝻䜲䝎䝹䞉䝅䝸䜹䛾ຓ䛡䜢೉䜚䛶ᶵᲔⓗ䛻◊๐䞉◊☻䛧䛯ᚋ䚸䝃䞁䝥䝹䜢᳨ᰝ䛧䚸ᚤ⣽䛺㍯㒌䛾ฟ⌧䛻䜘䛳䛶䝕䝹䝍䞉䝣䜵䝷䜲䝖䛾Ꮡᅾ䜢☜ㄆ䛧䛯䚹㢧ᚤ㙾䛷ᚓ䜙䜜䛯⏬ീ䜢⏝䛔䜛䛸䚸㛗ᡭ᪉ྥヨᩱ䛾ഃ᪉⾲㠃䛸୰ᚰ⥺௜㏆䛻ᚤᑠ䛺䜽䝷䝑䜽䛜ぢ䛴䛛䛳䛯䚹)UHLUH 䜙  䛾ෆ㒊Ỉ⣲䛸እ㒊Ỉ⣲䜢ῧຍ䛧䛯ヨᩱ䛷䛿䚸୰ᚰ㍈௜㏆䛻䜽䝷䝑䜽䛜ぢ䜙䜜䛯䚹䛣䛾⌮⏤䛿䛣䛣䛷䛿ㄝ᫂䛥䜜䛶䛔䛺䛔䛜䚸ᛂຊ୕㍈ᛶ䛾㐪䛔䛸䚸඘ሸ䝥䝻䝉䝇䛻䜘䛳䛶ಁ㐍䛥䜜䛯Ỉ⣲䛾㧗⃰ᗘ䛾ᙳ㡪䛸⪃䛘䜙䜜䜛䚹ᅗ  䛿䚸ண䜂䛪䜏䜢୚䛘䛺䛔⁐᥋㔠ᒓୖ䛾ᶓ䛝⿣䛾᰾Ⓨ⏕䛸ఏ ᧛䜢♧䛧䛶䛔䜛䚹ᅗ  D E F 䛿䚸ணഛ඘㟁䜢⾜䜟䛪䛻Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯ヨ㦂∦䠄እ㒊Ỉ⣲䠅䛷䛒䜚䚸ᅗ  GHI 䛿䚸Ỉ⣲⎔ቃ䛷 6657 ヨ㦂䜢⾜䛖๓䛻Ỉ⣲඘㟁䜢⾜䛳䛯ヨ㦂∦䠄ෆ㒊䛚䜘䜃እ㒊Ỉ⣲䠅䛷䛒䜛䚹ᅗ  H 䛻♧䛩䜘䛖䛻䚸⦪᩿㠃䛾୰ኸ㒊䛻ᙧᡂ䛥䜜䛯ෆ㒊䜽䝷䝑䜽䜢ほᐹ䛩䜛䛣䛸䛜䛷䛝䜛䚹䛣䜜䜙䛾ෆ㒊䛝⿣䛿䚸ண䜂䛪䜏䜢ຍ䛘䛯⁐᥋㔠ᒓ䛾◚㠃ୖ䛻ྍど໬䛥䜜䚸)UHLUH 䜙䠄䠅䛾䝕䜱䞁䝥䝹㡿ᇦෆ䛾ᑠ䛥䛺‽㛤⿣㡿ᇦ䛸䛧䛶⌧䜜䛯䚹  ᅗ  䛿䚸Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯ண䜂䛪䜏⁐᥋㔠ᒓヨ㦂∦䜢♧䛩䚹ᅗ  HI 䛷䛿䚸⦪᩿㠃䛛䜙ෆ㒊ட⿣䛜☜ㄆ䛷䛝䜛䚹ᅗ  䛸ᅗ  䛾㉥▮༳䛿䚸⏺㠃䛷᰾⏕ᡂ䛧䚸䝕䝹䝍䝣䜵䝷䜲䝖䛻ἢ䛳䛶ఏ᧛䛧䛯䛝⿣䜢♧䛧䚸⥳▮༳䛿䚸䝕䝹䝍䝣䜵䝷䜲䝖⏺㠃䛷᰾⏕ᡂ䛧䚸䝬䝖䝸䝑䜽䝇䠄䛚䛭䜙䛟䝬䝹䝔䞁䝃䜲䝖⃰ᗘ䛜㠀ᖖ䛻ప䛔䜸䞊䝇䝔䝘䜲䝖䠅䛻㐩䛧䛯䛝⿣䜢♧䛩䚹⥳Ⰽ䛾▮༳䛷♧䛥䜜䛯䜽䝷䝑䜽䛾୍㒊䛻䛿䚸䜽䝷䝑䜽䛾ᡂ㛗㐣⛬䛷ረᛶኚᙧ䛜㉳䛝䛶䛔䜛䛛䛾䜘䛖䛻䚸ඛ➃䛻㕌䛔㒊ศ䛜ぢ䜙䜜䛯䚹䜎䛯䚸ᅗ MN 䛾ண䜂䛪䜏ヨ㦂∦䛷䛿䚸ᅗ G 䛾㠀ண䜂䛪䜏ヨ㦂∦䛷ほᐹ䛥䜜䛯䜒䛾䛸ẚ㍑
䛧䛶䚸䝬䜲䜽䝻䝪䜲䝗䛾Ⓨ⏕䛜䛛䛺䜚⃭䛧䛛䛳䛯䚹 䛾ண䜂䛪䜏䜢୚䛘䛯ヨ㦂∦䛷Ⓨ⏕䛧䛯ட⿣䛿䚸ከ䛟䛾ሙྜ䝬䜲䜽䝻䝪䜲䝗䛻ᅖ䜎䜜䛶䛔䛯䚹䛣䜜䜙䛾ほᐹ䛾⤖ᯝ䚸䝕䝹䝍䝣䜵䝷䜲䝖䛾ቃ⏺䛜䛣䜜䜙䛾ᚤᑠ䜽䝷䝑䜽䛾᰾⏕ᡂ䝃䜲䝖䛷䛒䜛䛣䛸䛜☜ㄆ䛥䜜䚸䝕䝹䝍䝣䜵䝷䜲䝖䛸䜸䞊䝇䝔䝘䜲䝖䛾ቃ⏺䛾㛫䛻Ỉ⣲䛜⵳✚䛥䜜䚸䛣䜜䜙䛾㡿ᇦ䛷㧗ᛂຊ⃰ᗘ䛜Ⓨ⏕䛧䛖䜛䛣䛸䛸㛵㐃䛧䛶䛔䜛䚹%XFNOH\ DQG +DUGLH  䛜Ⓨぢ䛧䛯䜘䛖䛺䚸䝕䝹䝍䝣䜵䝷䜲䝖䛷Ⓨ⏕䛩䜛ட⿣䛿䚸௒ᅇ䛾◊✲䛷䛿ほᐹ䛥䜜䛺䛛䛳䛯䚹ቃ⏺䛜Ỉ⣲䛾ᙳ㡪ୗ䛷ᚤᑠ䛝⿣䛾᰾⏕ᡂ䛾ሙ䛸䛺䜛䛣䛸䛿䚸1LEXU 䜙  䜔 <RXQHV䜙  䛷ᣦ᦬䛥䜜䛶䛔䜛䚹䜎䛯䚸=KRX 䜙  䛿䚸䝕䝹䝍䝣䜵䝷䜲䝖ቃ⏺䛻䛚䛡䜛Ỉ⣲䛾೫ᯒ䜢ᣦ᦬䛧䛶䛚䜚䚸Ỉ⣲⃰ᗘ䛿䝕䝹䝍䝣䜵䝷䜲䝖䛾ᙧែ䛻䜘䛳䛶ኚ໬䛩䜛䚹ቃ⏺䛷䛾᰾⏕ᡂᚋ䚸䜽䝷䝑䜽䛿䝕䝹䝍䝣䜵䝷䜲䝖䛸䝬䝖䝸䝑䜽䝇඲య䛻ఏ᧛䛧䛯䚹䛣䛾䛣䛸䛿䚸*DQJORII  䛾㧗ᙉᗘ㔠ᒓ䛾ෆ㒊Ỉ⣲⿵ຓ๭䜜 ,+$& 䛸Ỉ⣲⎔ቃ⿵ຓ๭䜜 +($& 䛾ㄝ᫂䛸ྠᵝ䚸ప䛷ヨ㦂䛥䜜䛯䜸䞊䝇䝔䝘䜲䝖⣔䝇䝔䞁䝺䝇㗰䛷䛿䚸ෆ㒊Ỉ⣲䜎䛯䛿እ㒊Ỉ⣲䛜஺᥮ྍ⬟䛺ഃ㠃䜢♧䛩䛣䛸䜢⿬௜䛡䛶䛔䜛䚹䛧䛛䛧䚸6\PRQV  䛿䚸ෆ㒊Ỉ⣲䛾䜏䛷ヨ㦂䛧䛯ヨ㦂∦䜘䜚䜒䚸እ㒊Ỉ⣲䛷ヨ㦂䛧䛯ヨ㦂∦䛾᪉䛜㠌ᛶ䛜䜘䜚పୗ䛩䜛䛣䛸䜢♧䛧䚸ෆ㒊Ỉ⣲䛸እ㒊Ỉ⣲䛾୧᪉䛷ヨ㦂䛧䛯− 180 −

ヨ㦂∦䛿䚸ቃ⏺䛷䛾Ỉ⣲⃰ᗘ䛜㧗䛔䛯䜑䚸᭱䜒῝้䛺⬤໬䜢♧䛧䛯䚹)UHLUH 䜙  䛾ሙྜ䚸ෆ㒊Ỉ⣲䛚䜘䜃እ㒊Ỉ⣲䜢ྵ䜐⁐᥋㔠ᒓ䛷᭱䜒ప䛔 55$ ್䛜ᚓ䜙䜜䛯䚹ண䜂䛪䜏䛜 䜎䛷ቑຍ䛩䜛䛸䚸኱䛝䛺䝪䜲䝗䛾Ꮡᅾ䛜᫂䜙䛛䛻䛺䛳䛯䚹䛣䛾䝪䜲䝗䛿䚸䜂䛪䜏䛾㐣⛬䛷᥋ྜ䛧䛯ᚤᑠ䝪䜲䝗䜔䜽䝷䝑䜽䛻䜘䛳䛶⏕䛨䛯䛛䚸䛒䜛䛔䛿䚸䛣䛾ヨ㦂∦䛜ྲྀ䜚ฟ䛥䜜䛯㡿ᇦ䛻അ↛఩⨨䛧䛯⁐᥋ᕤ⛬䛷ᙧᡂ䛥䜜䛯䝤䝻䞊䝩䞊䝹䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹䝬䜲䜽䝻䝪䜲䝗䛸ᑠ䛥䛺䜽䝷䝑䜽䛜᥋ྜ䛧䛶䜘䜚኱䛝䛺䝪䜲䝗䛜ᙧᡂ䛥䜜䜛䛾䛿䚸㌿఩㛫䛾཯Ⓨຊ䜢పୗ䛥䛫䜛Ỉ⣲䛾ᙳ㡪䛸䚸&KDWHDX HW DO  䛷ㄝ᫂䛥䜜䛶䛔䜛䜘䛖䛻䚸Ỉ⣲䛾ᙳ㡪ୗ䛻䛒䜛ᛂຊ㞟୰㡿ᇦ䚸౛䛘䜀䜽䝷䝑䜽ඛ➃䛾๓᪉䛷㌿఩ᐦᗘ䛜ቑຍ䛩䜛䛣䛸䛜㛵ಀ䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹䜎䛯䚸Ỉ⣲䛿䚸✵Ꮝ䛾⏕ᡂ䜔จ㞟䚸䝬䜲䜽䝻䝪䜲䝗䛾ᙧᡂ䛻ᙳ㡪䜢୚䛘䚸⤖ᯝ䛸䛧䛶䝪䜲䝗䛾ᙧᡂ䜢ಁ㐍䛧䚸1DJXPR  䛻♧䛥䜜䛶䛔䜛䜘䛖䛻䚸䛣䛾䝪䜲䝗䛜䛝⿣㐍ᒎ䛾⤒㊰䛸䛺䜛ྍ⬟ᛶ䛜䛒䜛䚹ᅗ  LMN䛾䝪䜲䝗䛿䚸䝕䝹䝍䝣䜵䝷䜲䝖䛸䜸䞊䝇䝔䝘䜲䝖䛾ቃ⏺䛾㛫䚸䛚䜘䜃䜸䞊䝇䝔䝘䜲䝖ẕ┦䛾≉ᐃ䛾㡿ᇦ䚸䛚䛭䜙䛟䜸䞊䝇䝔䝘䜲䝖䛾㧗ᗘ䛻ኚᙧ䛧䛯㡿ᇦ䛷᰾⏕ᡂ䛧䛯䚹1DJXPR 䜙䠄䠅䛚䜘䜃 1DJXPR䠄䠅䛻グ㍕䛥䜜䛶䛔䜛 +(/3 ᶵᵓ䛸 +(6,9 ᶵᵓ䛿䚸ண䜂䛪䜏⁐᥋㔠ᒓ䛾Ỉ⣲⎔ቃ䛷䛾 6657 ヨ㦂୰䛻┦஫స⏝䛧䛶䛔䜛䜘䛖䛷䛒䜚䚸䛣䜜䜙䛾┦஫స⏝䛿 +('( ᶵᵓ䜒ಁ㐍䛧䚸䛣䛾ヨ㦂∦䛾ഃ㠃⾲㠃䛻‽㛤⿣䛝⿣䜢ᙧᡂ䛥䛫䛯䚹䛣䜜䜙  䛴䛾䝯䜹䝙䝈䝮䛾స⏝䛜䚸Υ䛷 ண䜂䛪䜏䜢୚䛘䛯ヨ㦂∦䛾 55$ ್䛜ప䛟䛺䛳䛯⌮⏤䛸⪃䛘䜙䜜䜛䚹䛥䜙䛻䚸䛝⿣䛾㐍ᒎ䛿䝕䝹䝍䝣䜵䝷䜲䝖⢏ෆ䛸䜸䞊䝇䝔䝘䜲䝖䝬䝖䝸䝑䜽䝇ෆ䛷ほᐹ䛥䜜䛯䚹䛩䜉䛶䛾ほᐹ䛛䜙䚸䝕䝹䝍䝣䜵䝷䜲䝖඲య䛻㐍ᒎ䛩䜛䛝⿣䛜䜘䜚㢖⦾䛻⌧䜜䚸䛣䜜䛿 %XFNOH\ DQG +DUGLH  䛸䛿␗䛺䜚䚸ຊ䛾༳ຍ᪉ྥ䛸䛿↓㛵ಀ䛷䛒䛳䛯䚹䛧䛛䛧䚸䛣䜜䛷䛿䜽䝷䝑䜽⤒㊰䛾䝯䜹䝙䝈䝮䜢ㄝ᫂䛩䜛䛣䛸䛿䛷䛝䛺䛔䚹&KDWHDX 䜙 䛾^`䛩䜉䜚㠃䛻ἢ䛳䛶㌿఩䛜✚䜏㔜䛺䜚䚸䛝⿣䛜䝆䜾䝄䜾䛻㐍ᒎ䛩䜛⌮ㄽ䛛䜙䚸䜸䞊䝇䝔䝘䜲䝖ẕ┦ෆ㒊䛷᪉ྥ䜢ኚ䛘䛺䛜䜙㐍ᒎ䛩䜛䛝⿣䛿䚸㌿఩ᐦᗘ䛾㧗䛔㡿ᇦ䛻㉳ᅉ䛩䜛䛸⪃䛘䜙䜜䜛䚹᫂䜙䛛䛻䚸䝬䝹䝔䞁䝃䜲䝖䛸䜸䞊䝇䝔䝘䜲䝖䛿䛣䛣䛷䛿༊ู䛥䜜䛺䛔䛜䚸䜘䜚༢⣧䛺᪉ἲㄽ䜢䜎䛪㐺⏝䛧䚸ட⿣࿘㎶䛸◚㠃ୖ䛾໬Ꮫ⤌ᡂ䛾㐪䛔䜢ㄪ䜉䜛䛣䛸䛜䛷䛝䜛䚹ᅗD 䝕䝹䝍䞉䝣䜵䝷䜲䝖ቃ⏺䛷䛾⾲㠃ୗ䛝⿣䛾᰾⏕ᡂ䚸E ⏺㠃䛷᰾⏕ᡂ䛧䚸䝕䝹䝍䞉䝣䜵䝷䜲䝖⤖ᬗ⢏䛾ቃ⏺
䜢◚ቯ䛧䛯䛝⿣䚸F 䝕䝹䝍䞉䝣䜵䝷䜲䝖䛸䜸䞊䝇䝔䝘䜲䝖䞉䝬䝖䝸䝑䜽䝇඲య䛻ఏ᧛䛧䚸ഃ㠃⾲㠃䛻㐩䛧䛯䛝⿣䚸G ෆ㒊䛚䜘䜃እ㒊Ỉ⣲䛷ヨ㦂䛧䛯㠀䝥䝸䝇䝔䜲䞁⁐᥋㔠ᒓ )UHLUH HW DO  䠖䝬䜲䜽䝻䝪䜲䝗䛾⃰ᗘ䛜㧗䛔㡿ᇦ䚹H ෆ㒊Ỉ⣲䛻䜘䜛ෆ㒊䛝⿣䛿䚸䝕䝹䝍䝣䜵䝷䜲䝖ቃ⏺䛷᰾⏕ᡂ䛧䚸䜸䞊䝇䝔䝘䜲䝖⢏඲య䛻㐍ᒎ䛩䜛䛜䚸䛒䜛㡿ᇦ䛷೵Ṇ䛩䜛䚹− 181 −ᅗ  ண䜂䛪䜏⁐᥋㔠ᒓ䠄D䚸E䚸F䚸G䠅䚸ෆ㒊䛚䜘䜃እ㒊Ỉ⣲䜢ྵ䜐 ண䜂䛪䜏ヨ㦂∦䠄H䚸I䠅䚸ண䜂䛪䜏⁐᥋㔠ᒓ䠄L䚸M䚸N䠅䛾⦪᩿㠃ほᐹ䚹䛚䜘䜃 O 䜢ႏ䛾Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯䠖D  䝕䝹䝍䞉䝣䜵䝷䜲䝖ቃ⏺䛚䜘䜃⤖ᬗ⢏ୖ䜢ఏ ᧛䛧䚸䜸䞊䝇䝔䝘䜲䝖䞉䝬䝖䝸䝑䜽䝇䛻㐩䛧䛯ᑠ 䛝⿣䜢క䛖኱䛝䛺䛝⿣㡿ᇦ䜢ᣢ䛴 ண䜂䛪䜏⁐᥋㔠ᒓ䠗G  䝕䝹䝍䞉䝣䜵䝷䜲䝖䜢㈏㏻䛧䚸䜸䞊䝇䝔䝘䜲䝖䞉䝬䝖䝸䝑 䜽䝇䜎䛷㐍ᒎ䛧䛯䛝⿣䚹⥳Ⰽ䛾▮༳䛿䚸䛝⿣ඛ ➃䛜䝕䝹䝍䞉䝣䜵䝷䜲䝖ୖ䛷㐍ᒎ䛧䛯௚䛾䛝⿣䛸ẚ ㍑䛧䛶㕌䛔䛣䛸䜢♧䛧䛶䛔䜛䚹  䠖ෆ㒊䛝⿣䛾ྵ䜐⦪᩿㠃ほᐹ䠗 I ⏬ീ H 䛷ᐃ䜢ᐃ䛥䜜䛯ෆ㒊䠗 J 䝕䝹䝍䞉䝣䜵䝷䜲䝖⏺㠃䛷᰾⏕ᡂ䛧䛯ഃ᪉䛝⿣䠗 K ண䜂䛪䜏⁐᥋㔠ᒓ䠖K  ண䜂䛪䜏⁐᥋㔠ᒓ 䝕䝹䝍䞉䝣䜵䝷䜲䝖⏺㠃䛻㐍ᒎ䛩䜛䛝⿣ L  䝕䝹䝍䞉䝣䜵䝷䜲䝖⢏䛸䜸䞊䝇䝔䝘䜲䝖⢏඲య䛻᰾䜢ᙧᡂ䛧䚸⾲㠃ୗ䛷㐍ᒎ䛩䜛䛝⿣M ഃ㠃㏆ഐ䛻ᚤᑠ䝪䜲䝗䛜㞟୰䛩䜛㡿ᇦN 䜸䞊䝇䝔䝘䜲䝖⢏䛸䝕䝹䝍䞉䝣䜵䝷䜲䝖⏺㠃䛻᰾䜢ᙧᡂ䛧䛯ᚤᑠ䝪䜲䝗O ⏺㠃䛷㐍ᒎ䛧䚸䝕䝹䝍䞉䝣䜵䝷䜲䝖⢏䜢◚᩿䛧䛯䛝⿣䚹
7,* ⁐᥋㔠ᒓ䛾໬Ꮫ⤌ᡂ䛾㐪䛔䜒ㄪᰝ䛷䛝䜛䛯䜑䚸 䜶䝛䝹䜼䞊ศᩓᆺ ; ⥺ศගἲ䠄('6䠅䛻䜘䜚䚸ட⿣㒊ศ࿘㎶䛾໬Ꮫ䝬䝑䝢䞁䜾䜢ᚓ䜛䛣䛸䛜䛷䛝䜛䚹ᇶᮏⓗ䛺௬ᐃ䛿䚸䝕䝹䝍䞉䝣䜵䝷䜲䝖䛾Ꮡᅾ䛿䚸䜽䝻䝮䛸䝰䝸䝤䝕䞁䛾ྵ᭷㔞䛜ከ䛔䛣䛸䛷ྍど໬䛷䛝䚸䜸䞊䝇䝔䝘䜲䝖䜎䛯䛿䝬䝹䝔䞁䝃䜲䝖䛿䝙䝑䜿䝹䛾ྵ᭷㔞䛜ከ䛔䛸䛔䛖䛣䛸− 182 −

䛷䛒䜛䚹ᅗ  䛸ᅗ  䛿䚸ศᯒ䛥䜜䛯䜽䝷䝑䜽ീ䚸1L䚸&U䚸0R 䝬䝑䝥䜢ྵ䜐ඖ⣲䝬䝑䝢䞁䜾䜢♧䛧䛶䛔䜛䚹ᅗ F 䛸
G 䛾 &U 䛸 0R 䝬䝑䝥䛾䝢䞁䜽Ⰽ䛾㡿ᇦ䛿䚸䝕䝹䝍䝣䜵䝷䜲䝖䛾఩⨨䛸ศᕸ䜢♧䛧䚸䛣䜜䜙䛾䝬䝑䝥䛾⥳Ⰽ䛾㡿ᇦ
䛿䚸0R 䛸 &U 䛾ప⃰ᗘ㡿ᇦ䜢♧䛧䛶䛔䜛䚹㯮䛔㡿ᇦ䛿䚸ゎീᗘ䛾ప䛔㡿ᇦ䚸䜽䝷䝑䜽㡿ᇦ䚸䜎䛯䛿ඖ⣲䛜Ꮡᅾ䛧䛺䛔㡿ᇦ䛸㛵㐃䛩䜛ྍ⬟ᛶ䛜䛒䜛䚹䝕䝹䝍䝣䜵䝷䜲䝖䛾ศᕸ䛸䛿ᑐ↷ⓗ䛻䚸ᅗ E 䛚䜘䜃ᅗ E 䛻♧䛩䜘䛖䛻䚸㧗䝙䝑䜿䝹㡿ᇦ䛿䝕䝹䝍䝣䜵䝷䜲䝖⥺䛛䜙㞳䜜䛯ᗈ䛔㡿ᇦ䛸䛧䛶ศᕸ䛧䛶䛔䜛䚹୍⯡䛻䚸䛝⿣䛿䝕䝹䝍䝣䜵䝷䜲䝖䛸䝙䝑䜿䝹ྵ᭷㔞䛾ప䛔㡿ᇦ䛷ఏ᧛䛧䚸䛣䜜䛿㧗䝙䝑䜿䝹㡿ᇦ䛷䛾䛝⿣ศᒱ䜢ጉ䛢䛺䛔䚹䛭䜜䛻䜒䛛䛛䜟䜙䛪䚸䛝⿣䛿㧗䝙䝑䜿䝹㡿ᇦ䛷೵ Ṇ䛩䜛䛣䛸䛜ከ䛟䚸ప䝙䝑䜿䝹㡿ᇦ䜔䝕䝹䝍䝣䜵䝷䜲䝖୰䜢ඃඛⓗ䛻㐍ᒎ䛩䜛䛣䛸䛜☜ㄆ䛥䜜䛯䚹
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ᅗෆ㒊䛚䜘䜃እ㒊Ỉ⣲䜢⏝䛔䛶& 䛷ヨ㦂䛧䛯 ண䜂䛪䜏⁐᥋㔠ᒓヨ㦂∦䛾ෆ㒊䛝⿣⏬ീ䛾໬Ꮫ䝬䝑䝢䞁䜾
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− 183 −ᅗෆ㒊䛚䜘䜃እ㒊Ỉ⣲䜢⏝䛔䛶& 䛷ヨ㦂䛧䛯 ண䜂䛪䜏⁐᥋㔠ᒓヨ㦂∦䛾ෆ㒊䛝⿣⏬ീ䛾໬Ꮫ䝬䝑䝢䞁䜾䚹䝭䝑䜽䝇䝌䞊䞁䛾◚ቯᵝ┦
0LFKOHU 䜙  䛚䜘䜃 0LFKOHU 䜙  䛻♧䛥䜜䛶䛔䜛䜘䛖䛻䚸Ỉ⣲⎔ቃୗ䛷ヨ㦂䛥䜜䛯ᯈ䜎䛯䛿Წ䛾ẕᮦ䛷䛿䚸䝕䜱䞁䝥䝹䛸‽㛤⿣䝟䝍䞊䞁䛜᫂䜙䛛䛻ศ㞳䛧䛯㡿ᇦ䛷ぢ䜙䜜䛯䛾䛻ᑐ䛧䚸௒ᅇ䛾◊✲䛷䛿䚸⁐᥋㔠ᒓ䛾◚᩿㠃䛷䛿䚸୧᪉䛾䝟䝍䞊䞁䛜⦤ᶍᵝ䛾䜘䛖䛺ᙧ≧䛷ΰᅾ䛧䛶䛔䜛䛣䛸䛜♧䛥䜜䛯䚹('6 ἲ䛿䚸‽㛤⿣㒊ෆ䛾䝕䜱䞁䝥䝹ᙧᡂ䛸ఱ䜙䛛䛾໬Ꮫⓗ㛵ಀ䛜䛒䜛䛛䛹䛖䛛䜢᳨ド䛩䜛䛯䜑䛻㐺⏝䛥䜜䛯䚹ᅗ  䛻䚸⁐᥋㔠ᒓ◚㠃䛾ඖ⣲ศᕸᅗ䠄1L䚸&U䚸0R䠅䛸ศᯒ㒊఩䜢♧䛩䚹ΰྜᖏ䛾‽㛤⿣䝟䝍䞊䞁䛿䚸㧗䜽䝻䝮䛚䜘䜃㧗 䝰䝸䝤䝕䞁ྵ᭷㔞䛸୺䛻㛵㐃䛧䛶䛚䜚䚸䝕䜱䞁䝥䝹䛿䝙䝑䜿䝹ྵ᭷㔞䛾㧗䛔㡿ᇦ䛻⌧䜜䛶䛔䜛䚹6DQ0DUFKL 䜙  䛿䚸 䝇䝔䞁䝺䝇㗰䛾 1L ྵ᭷㔞䛾ቑຍ䛜䚸⪏ +( ᛶ䛾ቑຍ䛻䛴䛺䛜䜛䛸ᣦ᦬䛧䛶䛔䜛䚹䛥䜙䛻䚸௒ᅇ䛾◊✲䛿䚸ᒁᡤⓗ䛺 1L 㧗ྵ᭷䛜ட⿣⤒㊰䛻ᙳ㡪䛩䜛䛣䛸䜢♧䛧䛶䛔䜛䚹䛣䛾᪉ἲ䛿䚸; ⥺䛜୙つ๎䛺⾲㠃䛻฿㐩䛧䚸ᅗ  䛷㯮䛟♧䛥䜜䛶䛔䜛୍㒊䛾㡿ᇦ䛷ඖ⣲䜢᳨ฟ䛷䛝䛺䛔䛯䜑䚸ゎീᗘ䛾Ⰻ䛔⏬ീ䜢ᥦ౪䛩䜛᭱䜒ṇ☜䛺᪉ἲ䛷䛿䛺䛛䛳䛯䚹ΰྜ㡿ᇦ䛻䛚䛡䜛ඖ⣲䛾ศᕸ䜢グ㏙䛩䜛䛣䛸䛿ྍ⬟䛷䛒䛳䛯䛜䚸䛭䛾໬Ꮫⓗ䝬䝑䝢䞁䜾䛿䝕䜱䞁䝥䝹䜔‽㛤⿣䝟䝍䞊䞁䛺䛹䛾พฝ䜔⢒䛥䛻ᙳ㡪䛥䜜䛯䚹䛧䛛䛧䚸⏬ീ䜢ὀព῝䛟ศᯒ䛧䛯⤖ᯝ䚸ᅗ  䛻♧䛧䛯⤖ᯝ䛜᳨ド䛥䜜䚸ΰྜᖏ䛻䛚䛡䜛᭱䜒ྍ⬟ᛶ䛾㧗䛔◚ቯ䝰䞊䝗䛿䚸⁐᥋㔠ᒓ䛾䜸䞊䝇䝔䝘䜲䝖䜎䛯䛿䝬䝹䝔䞁䝃䜲䝖୰䛾䝕䝹䝍䝣䜵䝷䜲䝖䛸㧗 1L ⃰ᗘ䛾䝕䜱䞁䝥䝹䛾‽㝗ἐ䛷䛒䜛䛣䛸䛜♧䛥䜜䛯䚹

− 184 −

ᅗ㻌 ⁐᥋㔠ᒓ◚㠃䛾ΰྜᖏඖ⣲䝬䝑䝢䞁䜾ᅗ  䛿䚸/XSSR  䛜᥎䛧䛯䜘䛖䛻䚸䜸䞊䝇䝔䝘䜲䝖⣔ 䝇䝔䞁䝺䝇㗰⁐᥋㒊䛻Ꮡᅾ䛩䜛䝣䜵䝷䜲䝖┦䛾+( ឤཷᛶ䛾᪉䛜䚸䜸䞊䝇䝔䝘䜲䝖┦䜘䜚䜒㔜せ䛷䛒䜛䛣䛸䜢☜ㄆ䛧䛯䚹䛧䛛䛧䚸/XSSR  䛿䚸䝕䝹䝍䞉䝣䜵䝷䜲䝖䛾 ๼㛤◚ቯ䜢 +(/3 ᶵᵓ䛸㛵㐃௜䛡䛶䛔䜛䚹+(/3 䛿䚸ᚤᑠ䛝⿣䛾᰾䜢⏕ᡂ䛩䜛⏺㠃䛷䛾㌿఩䛾✚䜏㔜䛽䛻㉳ᅉ䛩䜛䛸 -DFNVRQ 䜙  䚸1LEXU 䜙  䛿⪃䛘䛶䛔䜛䛜䚸ቃ⏺䛾Ỉ⣲⃰ᗘ䛻䜘䛳䛶䜒ಁ㐍䛥䜜䜛䛸=KRX 䜙  䛿⪃䛘䛶䛔䜛䚹୍᪉䚸+('( 䛿䚸㧗ṍ䜏䛸ప䝙䝑䜿䝹ྵ᭷䝌䞊䞁䛾ḟ䛾➇ྜ䛻䛚䛡䜛䝕䝹䝍䝣䜵䝷䜲䝖䛾จ㞟ຊ䛾పୗ䛻ᙳ㡪䛩䜛䚹⌧᫬Ⅼ䛷䛿䚸ႏ䛛䜙ႏ䜎䛷䛾ᚓ䛩䜛ᚲせ䛜䛒䜚䚸᭱኱Ỉ⣲⬤໬ᗘ䛻䛚䛡䜛Ỉ⣲⬤໬䜢ᩘᏛⓗ䛻⾲⌧䛩䜛䛣䛸䛿䚸㐺ษ䛺䝕䞊䝍䜢ྲྀ

ᗘ 70+( 䛾Ꮡᅾ䜢᫂䜙䛛䛻䛩䜛ᚲせ䛜䛒䜛䛯䜑䚸䜔䜔୙ṇ☜䛷䛒䜛䚹䜸䞊䝇䝔䝘䜲䝖⢏䛸䝕䝹䝍䝣䜵䝷䜲䝖⢏䛾Ỉ⣲ᣑᩓ䚸ᾐ㏱䚸⁐ゎᗘ䛻㛵䛩䜛䝟䝷䝯䞊䝍䜢ᐃ⩏䛩䜛䛯䜑䛾ṇ☜䛺䝕䞊䝍䛜୙㊊䛧䛶䛚䜚䚸≉䛻௒ᅇ䛾◊✲䛷♧䛥䜜䛯ᗘ⠊ᅖ䛷䛿䚸䛭䛾䜘䛖䛺䝕䞊䝍䛜୙㊊䛧䛶䛔䜛䚹.LXFKLDQG

0F/HOODQ  䛷♧䛥䜜䛶䛔䜛䜘䛖䛻䚸EFF㕲䛷䛿䚸ႏ䛛䜙 ႏ䛾ᗘ䛷ᣑᩓ䛜኱䛝䛟ኚ໬䛩䜛ྍ⬟ᛶ䛜䛒䜚䚸㉸ప䛷䛾ᣑᩓ䜢᥎ᐃ䛩䜛䛯䜑䛾༢⣧䛺䜰䝺䝙䜴䝇䜰䝥䝻䞊䝏䛿䚸୙ṇ☜䛺⤖ᯝ䜢♧䛩ྍ⬟ᛶ䛜䛒䜛䚹䜎䛯䚸ప䛻䛚䛡䜛 EFF ᵓ㐀୰䛾Ỉ⣲⁐ゎᗘᣲື䛿䚸7UDXWPDQQ 䜙  䚸'UH[OHU 䜙  䛾䜘䛖䛻㠀ᖖ䛻

ከᵝ䛷䛒䜛䜘䛖䛷䛒䜚䚸'UH[OHU 䜙  䛾䜘䛖䛻 6LHYHUW 䛾ἲ๎䜢⏝䛔䛯᥎ᐃ䛸䜒␗䛺䜛䚹䝣䜵䝷䜲䝖⤌⧊䛾Ỉ⣲⁐ゎᗘ䛿䚸ᗘ䛜పୗ䛩䜛䛻䛴䜜䛶䜰䝺䝙䜴䝇䜰䝥䝻䞊䝏䜔䝅䞊䝧䝹䝖䛾ἲ๎䛻᏶඲䛻䛿ᚑ䜟䛺䛟䛺䜛䛣䛸䛜ண᝿䛥䜜䜛䛜䚸į 䝣䜵䝷䜲䝖⁐ゎᗘ䛿䜸䞊䝇䝔䝘䜲䝖䛾⁐ゎᗘ䝺䝧䝹䛻䛿㐩䛧䛺䛔䛣䛸䛜᝿ᐃ䛥䜜䜛䚹䛥䜙䛻䚸䜸䞊䝇䝔䝘䜲䝖୰䛾Ỉ⣲䛾ᣑᩓ䛿䚸䝕䝹䝍䝣䜵䝷䜲䝖୰䛾ᣑᩓ䜘䜚䜒ప䛟䚸䜸䞊䝇䝔䝘䜲䝖⢏ෆ䛾Ỉ⣲㣬࿴䛜㐜䛟䛺䜛䛸ண᝿䛥䜜䜛䚹䛧䛯䛜䛳䛶䚸į 䝣䜵䝷䜲䝖䛿䜸䞊䝇䝔䝘䜲䝖䛻ẚ䜉Ỉ⣲䛷ඛ䛻‶䛯䛥䜜䜛䛣䛸䛻䛺䜚䚸į 䝣䜵䝷䜲䝖䛾ᒁᡤจ㞟ຊ䛾పୗ䜔ຎ໬䜢ຓ㛗䛩䜛䛣䛸䛻䛺䜛䚹ᅗ  䛸ᅗ  䛿䚸ႏ䛾Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯⁐᥋㔠ᒓヨ㦂∦䛾◚㠃䚸䛝⿣䛾᰾Ⓨ⏕䚸㐍ᒎ䝯䜹䝙䝈䝮䛾ほᐹ䜢䜎䛸䜑䛯䜒䛾䛷䛒䜛䚹䝇䝔䞊䝆  䛿 6657 ヨ㦂∦䛾᩿㠃䜢♧䛧䛶䛚䜚䚸䛣䛾ヨ㦂∦䛿Ỉ⣲⎔ቃୗ䛷䜂䛪䜏䜢ཷ䛡䛶䛔䜛䚹Ỉ⣲䛿ゎ㞳䛧䛶ഃ㠃⾲㠃䛛䜙᱁Ꮚ䜔㌿఩䛻౵ධ䛧䚸ヨ㦂∦䛾ഃ㠃ቃ⏺௜㏆䛾௚䛾ሙᡤ䜘䜚䜒ᛂຊ㞟୰䛜㧗䛔ሙᡤ䚸≉䛻䜸䞊䝇䝔䝘䜲䝖䝬䝹䝔䞁䝃䜲䝖䛸䝕䝹䝍䝣䜵䝷䜲䝖䛾⢏⏺䛻⛣ື䛩䜛ഴྥ䛜䛒䜛䚹Ỉ⣲䛾Ꮡᅾ䛻䜘䜚จ㞟䜶䝛䝹䜼䞊䛜పୗ䛧䚸䝕䝹䝍䝣䜵䝷䜲䝖䛸䜸䞊䝇䝔䝘䜲䝖䛾ቃ⏺䛷䛝⿣䛜᰾⏕ᡂ䛩䜛䚹ᒁᡤᛂຊ䛜ቑຍ䛩䜛䛸䚸䛝⿣䛾㏆ഐ䛻Ỉ⣲䛜⵳✚䛧䚸䝬䝖䝸䝑䜽䝇୰䜢‽㛤⿣䝟䝍䞊䞁䛷ఏ᧛䛩䜛䚹䛣䛾䝥䝻䝉䝇䛿䚸Ỉ⣲ᙉ໬⬺จ㞟䠄+('(䠅䝯䜹䝙䝈䝮䛻䜘䛳䛶ᑟ䛛䜜䚸䛝⿣䛜㐺ษ䛺኱䛝䛥䛻㐩䛩䜛䜎䛷䛿䚸Ỉ⣲䛾෌⃰⦰䛿䛝⿣䛾ᡂ㛗䜋䛹㏿䛟䛺䛔䚹䛣䛾▐㛫䚸➨  ẁ㝵䛜ጞ䜎䜛䚹䛩䛺䜟䛱䚸㑅ᢥⓗ䛺Ỉ⣲䛾‽㛤⿣◚ቯ䛻䜘䜛ΰྜ䝌䞊

− 185 −

䞁䛜䛝⿣䛾๓㠃䛻ᙧᡂ䛥䜜䚸䝕䝹䝍䝣䜵䝷䜲䝖⢏䜔 1L ྵ᭷㔞䛾ప䛔㡿ᇦ䛻ඃඛⓗ䛻ᙧᡂ䛥䜜䜛䚹䛣䜜䜙䛾㡿ᇦ䛾ᚤ⣽⤌⧊䛿䚸‽㛤⿣◚ቯ䝟䝍䞊䞁䛾ᙧᡂ䛾䛯䜑䛻䚸䛣䛾ᗘ䛷䜘䜚ప䛔Ỉ⣲⃰ᗘ䜢ᚲせ䛸䛧䚸୍᪉䚸୺䛻

1L ྵ᭷㔞䛾㧗䛔ู䛾㡿ᇦ䛿䚸䝬䜲䜽䝻䝪䜲䝗䛾ྜయ䛻䜘䛳䛶◚ቯ䛩䜛䚹䛭䛾⤖ᯝ䚸ΰྜ㡿ᇦ䛷䛿䚸Ỉ⣲ᙉ໬ᒁ㒊ረᛶ䠄+(/3䠅ᶵᵓ䛸 +('( 䛜䚸䛭䜜䛮䜜䝕䜱䞁䝥䝹䛸‽㛤⿣䝟䝍䞊䞁䛾ᙧᡂ䛻ᙳ㡪䜢ཬ䜌䛧䛶䛔䜛䚹᭱ᚋ䛻䚸ヨ㦂∦䛜䜂䛪䜏⥆䛡䜛䛸䚸ட⿣䛜ᡂ㛗䛩䜛䛾䛸ྠ䛨㏿ᗘ䛷Ỉ⣲䜢⃰⦰䛩䜛䛣䛸䛜䛷䛝䛺䛟䛺䜚䚸䝬䜲䜽䝻䝪䜲䝗䛜᰾⏕ᡂ䛧䚸Ỉ⣲⃰ᗘ䛜పୗ䛩䜛䛯䜑䚸᭱⤊ⓗ䛻䛿 +(/3 ᶵᵓ䛜ඃໃ䛻䛺䜛䚹ヨ㦂∦䛾◚ቯ䛿䚸䜘䜚኱䛝䛺ᘏᛶ◚ቯ㡿ᇦ䛸䚸䜘䜚ᑠ䛥䛺‽㛤⿣䛚䜘䜃ΰྜ㡿ᇦ䛛䜙ᵓᡂ䛥䜜䜛䚹⬤ᛶ㡿ᇦ䛾ᙧᡂ䛿& 䛷♧䛥䜜䛯䜒䛾䛸䛧䛶ᥥ䛛䜜䛶䛔䜛䛜䚸䛝⿣䛾㐍ᒎ䛾㐪䛔䛿䛒䜛䜒䛾䛾䚸◚ቯ䝯䜹䝙䝈䝮䛸୍㐃䛾⌧㇟䛿䚸& 䛷ヨ㦂䛧䛯⁐᥋㔠ᒓヨ㦂∦䛷䜒᭷ຠ䛷䛒䜛䚹⁐᥋㔠ᒓヨ㦂∦䛷ඃໃ䛺 +(/3䝯䜹䝙䝈䝮䜢☜ㄆ䛩䜛䛯䜑䛻䛿䚸55$ 䛾ῶᑡ䛸ᘏᛶ㡿ᇦ䛾኱䛝䛥䜢㛵㐃௜䛡䜛ᚲせ䛜䛒䜚䚸䛣䜜䛿ᚋ䛷⾜䛖䚹䛸䛿䛔䛘䚸ᛂຊ䛸Ỉ⣲⃰ᗘ䛜㧗䛔㡿ᇦ䛷䛿䚸+('( 䝯䜹䝙䝈䝮䛜◚ቯⓎ⏕䛾ཎᅉ䛸䛺䜛ྍ⬟ᛶ䛜䛒䜛䚹)DQ 䜙 䛿䚸Ỉ⣲䜢䝏䝱䞊䝆䛧䛯 3+ 㗰䛻䛴䛔䛶䚸+(/3 䛸Ỉ⣲䛻䜘䜛䜂䛪䜏ㄏ㉳✵Ꮝ⏕ᡂ +(6,9 ᶵᵓ䛾ቑᙉ䛻ᨭ㓄䛥䜜䜛䝕䝹䝍䝣䜵䝷䜲䝖䛾๼㛤◚ቯ䛜㉳䛣䜚䛖䜛䛸ᣦ᦬䛧䛯䚹୍᪉䚸ᮏ◊✲䛷䛿䚸686/ 䛾㠀ணഛ䜂䛪䜏䚸䛚䜘䜃 ணഛ䜂䛪䜏䛾⁐᥋㒊䛻䛴䛔䛶䚸+(/3 䛸 +('( 䛻ᨭ㓄䛥䜜䜛 į 䝣䜵䝷䜲䝖䛾‽๼㛤◚ቯ䛜ㄆ䜑䜙䜜䛯䚹௚䛾ヨ㦂∦䛸䛿␗䛺䜚䚸Υ䛾Ỉ⣲୰䛷ヨ㦂䛧䛯 ண䜂䛪䜏⁐᥋㔠ᒓ䛷䛿䚸⦪᩿㠃ほᐹ୰䛻኱䛝䛺䝪䜲䝗䛜ほᐹ䛥䜜䛯䚹䛣䜜䛿䚸 䛴䛾Ỉ⣲⬤໬䝯䜹䝙䝈䝮䚸+('(䚸+(6,9䚸+(/3 䛾┦஫స⏝䚸䜎䛯䛿䝃䞁䝥䝸䞁䜾㡿ᇦ䛻఩⨨䛩䜛⁐᥋䝤䝻䞊䝩䞊䝹䛻䜘䛳䛶Ⓨ⏕䛧䛯䛸⪃䛘䜙䜜䜛䚹௚䛾ヨ㦂∦䛷䛿䚸ண䜂䛪䜏䜢୚䛘䛯
ヨ㦂∦䛾䜘䛖䛺኱䛝䛺䝪䜲䝗䛿ぢ䜙䜜䛺䛛䛳䛯䛯䜑䚸 䛴䛾䝯䜹䝙䝈䝮䛾┦஫స⏝䛿౫↛䛸䛧䛶㛵㐃ᛶ䛾䛒䜛௬ㄝ䛷䛒䜛䚹䛧䛯䛜䛳䛶䚸ᅗ  䛷䛿䚸+(6,9 䜒ᮦᩱᛶ⬟䛻ᙳ㡪䜢ཬ䜌䛧䚸ረᛶ䜂䛪䜏䛾ቑຍ䛻క䛖䛣䜜䜙  䛴䛾䝯䜹䝙䝈䝮䛾┦஫స⏝䛻䜘䛳䛶䚸䜘䜚῝้䛺⬤໬䛜⏕䛨䛯䛸᥎䛥䜜䜛䚹

ᅗ㻌 &䛾Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯㠀ண䜂䛪䜏䚸䛚䜘䜃ண䜂䛪䜏䛾7,*⁐᥋㔠ᒓ䛾◚ᦆ䝯䜹䝙䝈䝮䚹− 186 −

ᅗ㻌 ⁐᥋䝤䝻䞊䝩䞊䝹䛜ヨ㦂∦䛻᭷ព䛻Ꮡᅾ䛧䛺䛔䛣䛸䜢⪃៖䛧䚸& 䛾Ỉ⣲⎔ቃ䛷ヨ㦂䛧䛯 ண䜂䛪䜏 7,* ⁐᥋㔠ᒓ䛾◚ቯ䝯䜹䝙䝈䝮䚹⤖ㄽ
ヨ㦂∦䛾㛗䛥䛚䜘䜃᩿㠃䛻ἢ䛳䛯୙ᆒ୍䛺ኚᙧ䛿䚸55$ 䛾⤖ᯝ䜢↓ຠ䛻䛿䛧䛺䛛䛳䛯䚹䛧䛛䛧䚸& 䛷
ヨ㦂䛧䛯 ண䜂䛪䜏⁐᥋㔠ᒓ䛿䚸Ỉ⣲ㄏ㉳㐃⥆䛝⿣㐍ᒎ䠄+,6&*䠅䛜㉳䛣䛳䛯䛣䛸䜢⪃៖䛩䜛䛸䚸㏻ᖖ䛷䛿⪃䛘䜙䜜䛺䛔ᣲື䜢♧䛧䛯䚹䛧䛯䛜䛳䛶䚸 & 䛸 & 䛷䛾 55$ ್䛿 䜘䜚ప䛟䚸ண䜂䛪䜏᮲௳䜢⪃៖䛧䛶䛝⿣㐍ᒎ䛸⑂ປᑑ࿨䜢ศᯒ䛩䜛ᚲせ䛜䛒䜛䚹௒ᅇ䛾◊✲䛷ᚓ䜙䜜䛯୺䛺▱ぢ䜢ิᣲ䛩䜛䠖x 䝕䝹䝍䝣䜵䝷䜲䝖䛾ቃ⏺䛜᰾⏕ᡂ䝃䜲䝖䛷䛒䜛䛣䛸䛜☜ㄆ䛥䜜䛯䚹x 䛥䜙䛻䚸䛝⿣䛿䝕䝹䝍䝣䜵䝷䜲䝖䛻ఏ᧛䛩䜛ഴྥ䛜䛒䜚䚸◚㠃 䛾 ('6 䛷♧䛥䜜䜛䜘䛖䛻䚸‽㛤⿣◚ቯ䜢ᘬ䛝㉳䛣䛧䛶䛔䜛䚹䛭䜜䛻䜒䛛䛛䜟䜙䛪䚸䛝⿣䛿᰾⏕ᡂᚋ䚸䜸䞊䝇䝔䝘䜲䝖ẕ┦䛾≉ᐃ䛾㡿ᇦ䛻䜒ఏ᧛䛩䜛䛣䛸䛜䛒䜚䚸䛣䜜䜙䛾㡿ᇦ䛿䜸䞊䝇䝔䝘䜲䝖ẕ┦ୖ䛾௚䛾㡿ᇦ䛸ẚ㍑䛧䛶ኚᙧ䝺䝧䝹䛜㧗䛔䛣䛸䛜᥎ᐹ䛥䜜䜛䚹x ΰྜᖏ◚ቯ䝰䞊䝗䛾䝝䜲䝷䜲䝖䛸䛧䛶䚸('6 ศᯒ䛻䜘䜚䚸⁐᥋㔠ᒓ୰䛾䝙䝑䜿䝹ྵ᭷㔞䛜㧗䛔㡿ᇦ䛿Ỉ⣲䛝⿣䛾㐍ᒎ䛻ᑐ䛧䛶㧗䛔᢬ᢠᛶ䜢♧䛧䚸䝙䝑䜿䝹ྵ᭷㔞䛜ప䛟䜽䝻䝮䜔䝰䝸䝤䝕䞁䛾ྵ᭷㔞䛜㧗䛔㡿ᇦ䛿ඃඛⓗ䛺䛝⿣㐍ᒎ⤒㊰䜢♧䛧䛯䚹ΰྜ㡿ᇦ䛷䛿䚸+('( 䛸 +(/3 䛾┦஫స⏝䛜ほᐹ䛥䜜䛯䛜䚸䛣䜜䛿䛚䛭䜙䛟䚸䛝⿣䛾ఙ㛗䛚䜘䜃ᡂ㛗㏿ᗘ䛾ቑຍ䛻䜘䜚䚸䛝⿣࿘㎶䛻Ỉ⣲䛜෌⃰⦰䛩䜛᫬㛫䛜
୙㊊䛧䛯䛯䜑䛻㉳䛣䛳䛯䛸⪃䛘䜙䜜䜛䚹x ண䜂䛪䜏⁐᥋㔠ᒓ䛷䛿䚸 䛴䛾◚ቯ䝯䜹䝙䝈䝮䠄+('(䚸+(6,9䚸+(/3䠅䛾┦஫స⏝䛜䚸᭱䜒㧗䛔ຎ໬䜢ᘬ䛝㉳䛣䛩ཎᅉ䛸䛺䛳䛶䛔䜛ྍ⬟ᛶ䛜䛒䜚䚸䛣䛾ලయⓗ䛺≧ἣ䜢᫂䜙䛛䛻䛩䜛䛯䜑䛻䚸䛥䜙䛺䜛ㄪᰝ䛜⾜䜟䜜䜛ணᐃ䛷䛒䜛䚹x ヨ㦂䛧䛯⁐᥋㔠ᒓ䛾Ỉ⣲⬤໬䝺䝧䝹䛾㔜せ䛺ഃ㠃䛾  䛴䛿䚸䝖䝢䝑䜽  䛷㏙䜉䛯୙ᆒ୍䛺ኚᙧ䛷
䛒䜛䚹0LFKOHU HW DO  䛜ᣦ᦬䛧䛯䜘䛖䛻䚸䜂䛪䜏㐣⛬䛻䛚䛡䜛ᒁᡤⓗ䛺ኚᙧ䛿䚸Ỉ⣲䜰䝅䝇䝖◚ቯ᢬ᢠᛶ䛻᭷ᐖ䛷䛒䜛ྍ⬟ᛶ䛜䛒䜛䚹䛧䛯䛜䛳䛶䚸䜘䜚ᆒ୍䛺ኚᙧศᕸ䜢ᚓ䜛䛯䜑䛻䛣䛾⁐᥋⥅ᡭ䜢ᨵⰋ䛩䜛䛣䛸䛿䚸䜘䜚ඃ䜜䛯⪏Ỉ⣲⬤໬ᛶ䜢ಁ㐍䛩䜛䛯䜑䛻᭷┈䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹⁐᥋ᕤ⛬䛷⏕ᡂ䛩䜛䝕䝹䝍䝣䜵䝷䜲䝖䛿䚸⪏⇕ட⿣ᛶ䚸⪏㣗ᛶ䚸⇕⭾ᙇ⋡䛾ᨵၿ䛻㔜せ䛺ᙺ๭䜢ᯝ䛯䛩䛜䚸䛣䛾⤖ᯝ䛛䜙䚸ட⿣䛿䝕䝹䝍䝣䜵䝷䜲䝖ቃ⏺䛷᰾⏕ᡂ䛧䚸䝕䝹䝍䝣䜵䝷䜲䝖⤌⧊ෆ䜢ఏ᧛䛧䛯ᚋ䚸Ỉ⣲⎔ቃ୰䛾ప䝙䝑䜿䝹㡿ᇦ䛻ఏ᧛䛩䜛䛣䛸䛜♧၀䛥䜜䛯䚹䛣䛾⤖ᯝ䛿䚸‽㛤⿣䝟䝍䞊䞁䛜 䝕䝹䝍䞉䝣䜵䝷䜲䝖䛷ぢ䛴䛛䜚䜔− 187 −

䛩䛔䛣䛸䜢♧䛧䛶䛔 䜛䛜䚸䛣䛾ᚤ⣽ᵓ㐀䛜⁐᥋㔠ᒓ䛾᭱ᙅⅬ䛷䛒䜛䛸 ุ᩿䛩䜛䛾䛿ṇ䛧䛟䛺䛔䚹<XQ 䜙 䛿䚸䝕䝹䝍䞉 䝣䜵䝷䜲䝖䛜ᶵᲔⓗ཮ᬗ䛻ᑐ䛩䜛Ᏻᐃᛶ䜢㧗䜑䚸䛣 䜜䛜⪏ +( ᛶ䛾ྥୖ䛻ᐤ୚䛩䜛䛸ㄝ᫂䛧䛶䛔䜛䚹୍᪉䚸/XSSR 䜙  䛚䜘䜃 -DFNVRQ 䜙  䛜♧䛩䜘䛖䛻䚸⁐᥋㔠ᒓ୰䛾䝕䝹䝍䞉 䝣䜵䝷䜲䝖䛾㔞䛜ከ䛔䛸䚸⪏ +( ᛶ䛜పୗ䛩䜛䚹ᚑ䛳䛶䚸7,* ⁐᥋㔠ᒓ䛾 +( ឤཷᛶ䜢᭱ᑠ䛻䛩䜛䛯 䜑䛻䛿䚸䝕䝹䝍䞉䝣䜵䝷䜲䝖䛾᭱㐺Ⅼ䜢ぢ䛴䛡䛺䛡䜜䜀䛺䜙䛺䛔䚹
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࣮ࢩࣙࣥ⤖ᯝ࡟ࡼࡾ஦๓Ꮫ⩦ࢆ⾜ࡗࡓࠋ⇕ఏᑟゎᯒ᪉ἲࡣ᭷㝈ᕪศ㝜ゎἲ࡜ࡋࠊ཰᮰ィ⟬ࡣ -DFREL ἲ࡟ࡼࡾ⾜ࡗࡓࠋᑠつᶍࣔࢹࣝ࠾ࡼࡧ㧗㏿ゎᯒࣇ࣮ࣟࡢ᭷ຠᛶ᳨ド࡟⏝࠸ࡓࣔࢹࣝࡢᑍἲࢆᅗ  ࡟♧ࡍࠋࡲࡓࠊ౑⏝ࡋࡓ≀ᛶ್ࢆᅗ  ࡟♧ࡍࠋࡇࢀࡽࡢ್ࡣ 686 ࡢ≀ᛶ್ࢆཧ⪃࡟ỴᐃࡋࡓࠋᶵᲔᏛ⩦ࣔࢹࣝࡢᵓ⠏࠾ࡼࡧྛ✀ィ⟬ࡣࠊ3\WKRQ ࡢ㧗㏿ィ⟬ࣛ࢖ࣈ࡛ࣛࣜ࠶ࡿ -$; ࡜ᶵᲔᏛ⩦ࣛ࢖ࣈ࡛ࣛࣜ࠶ࡿ )/$; ࢆ⏝࠸ࡓࠋᶵᲔᏛ⩦ࣔࢹࣝࡢヲ⣽ࡣ⣬㠃ࡢ㒔ྜୖ๭ឡࡍࡿࡀࠊ␚ࡳ㎸ࡳᒙ%DWFK 1RUPDOL]DWLRQ ᒙ35H/8 άᛶ໬࡟ࡼࡿ࢚ࣥࢥ࣮ࢲ࡜ 3L[HO
6KXIIOH ᒙ࡟ࡼࡿ࢔ࢵࣉࢧࣥࣉࣜࣥࢢࢆ⾜࠺ᵓ㐀࡜ࡋࡓࠋᑠつᶍࣔࢹࣝ࡟࠾ࡅࡿྛ᫬㛫ࡢ⢒࣓ࢵࢩࣗࠊ⣽࣓ࢵࢩࣗୖࡢ ᗘሙࢆᏛ⩦ࢹ࣮ࢱ࡜ࡋ࡚⏝࠸ࠊᶵᲔᏛ⩦ࣔࢹࣝࡢᏛ⩦ࢆ⾜ࡗࡓࠋィ⟬᫬㛫ࡢẚ㍑ࡣࠊ&38ィ⟬㸦୍⯡ゎᯒࣇ࣮ࣟ㸧ࠊ*38 ィ⟬㸦୍⯡ゎᯒࣇ࣮ࣟ㸧ࠊ*38 ィ⟬㸦㧗㏿ゎᯒࣇ࣮ࣟ㸧ࡢ  ✀࡛⾜ࡗࡓࠋࠋᑠつᶍࣔࢹࣝ࡟ࡼࡿᏛ⩦ࢹ࣮ࢱࡢసᡂࠊィ⟬᫬㛫ࡢẚ㍑ࡢ࠸ࡎࢀ࡟࠾࠸࡚ࡶࠊ⣽࣓ࢵࢩࣗ࡜⢒࣓ࢵࢩࣗࡢࢧ࢖ࢬẚࡣ 㸦⣽࣓ࢵࢩࣗ㸸PP ゅࠊ⢒࣓ࢵࢩࣗ㸸PP ゅ㸧࡜ࡋࡓࠋࡲࡓධ⇕ศᕸࡣ࢞࢘
ࢫศᕸ㸦࢞࢘ࢫ༙ᚄ㸸PP㸧ࡢ⛣ື⇕※࡜ࡋࠊධ⇕㔞ࡣ :ࠊ⛣ື㏿ᗘࡣ PPV ࡜ࡋࡓࠋ

− 191 −ᅗ  ᑠつᶍࣔࢹࣝ࠾ࡼࡧ㧗㏿ゎᯒࣇ࣮ࣟࡢ᭷ຠᛶ᳨ド࡟⏝࠸ࡓゎᯒࣔࢹࣝࡢᑍἲD  ⁐᥋⥺ୖࡢᗘศᕸ ⁐᥋⤊➃㏆ഐ E ྛゎᯒ᪉ἲ࡟࠾ࡅࡿィ⟬᫬㛫ᅗ  ィ⟬᫬㛫ẚ㍑⏝ࣔࢹࣝࢆ⏝࠸ࡓィ⟬⤖ᯝ ᅗ  ࡟ࠊィ⟬᫬㛫ẚ㍑⏝ࣔࢹࣝࢆ⏝࠸ࡓィ⟬ࡢ᭱⤊ࢫࢸࢵࣉ࡟࠾ࡅࡿ⁐᥋⤊➃௜㏆ࡢ⁐᥋⥺ୖࡢ ᗘศᕸ࡜ィ⟬᫬㛫ࢆࠊ&38 ィ⟬㸦୍⯡ゎᯒࣇ࣮ࣟ㸧ࠊ*38 ィ⟬㸦୍⯡ゎᯒࣇ࣮ࣟ㸧ࠊ*38 ィ⟬㸦㧗㏿ゎᯒࣇ࣮ࣟ㸧ࡢ  ✀࡟ࡘ࠸࡚♧ࡍࠋࡇࡢᅗ࡟♧ࡍ㏻ࡾࠊ࠸ࡎࢀࡢィ⟬࡟࠾࠸࡚ࡶ࡯ࡰ➼ࡋ࠸ ᗘศᕸࡀᚓࡽ
ࢀ࡚࠸ࡿࠋࡇࢀࡣࠊྠᵝࡢ཰᮰ᇶ‽࡟࡚ィ⟬ࢆ⾜ࡗ࡚࠸ࡿࡓࡵ࡛࠶ࡿࠋ୍᪉࡛ィ⟬᫬㛫ࡣ኱ࡁࡃ␗࡞ࡗ
࡚࠾ࡾࠊ&38 ィ⟬㸦୍⯡ゎᯒࣇ࣮ࣟ㸧ࡢィ⟬࡜ẚ㍑ࡋ࡚ࠊ*38 ィ⟬㸦୍⯡ゎᯒࣇ࣮ࣟ㸧࡛ࡣ⣙ ࠊ
*38 ィ⟬㸦㧗㏿ゎᯒࣇ࣮ࣟ㸧࡛ࡣ⣙  ࡜࡞ࡗ࡚࠾ࡾࠊ㧗㏿ゎᯒࣇ࣮ࣟ࡟ࡼࡿ኱ᖜ࡞ィ⟬㧗㏿໬ࡀ㐩ᡂࡉࢀ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ
 ࠾ࢃࡾ࡟
ᮏ◊✲࡛ࡣࠊ⁐᥋⇕ఏᑟࢩ࣑࣮ࣗࣞࢩࣙࣥࡢ㧗㏿໬ࡢࡓࡵࡢࠊᶵᲔᏛ⩦ࢆά⏝ࡋࡓᡭἲ࡟ࡘ࠸᳨࡚
ウࢆ⾜࠸ࠊࡑࡢຠᯝ࡟ࡘ࠸᳨࡚ドࡋࡓࠋ⤖ᯝ࡜ࡋ࡚ࠊ㧗㏿ゎᯒࣇ࣮ࣟࡣ୍⯡ⓗ࡞ &38 ࢆ⏝࠸ࡓ㝜ゎἲ⇕ఏᑟゎᯒἲ࡜ẚ࡭࡚ࠊ኱ᖜ࡞㧗㏿໬ࢆ㐩ᡂ࡛ࡁࡿࡇ࡜ࢆᐇドࡋࡓࠋࡓࡔࡋࠊᮏ◊✲࡛ࡣᶵᲔᏛ⩦ࣔࢹࣝࡢᏛ⩦࡟ࡣࠊィ⟬᫬㛫ẚ㍑⏝ࡢィ⟬࡜ྠࡌධ⇕᮲௳ࢆ㐺⏝ࡋࡓᑠつᶍࣔࢹࣝࡢゎᯒ⤖ᯝࡢࡳࢆ౑
⏝ࡋࡓࡓࡵࠊ௚ࡢධ⇕᮲௳࡟࠾ࡅࡿゎᯒࢆ㧗㏿໬ࡍࡿࡇ࡜ࡣ㞴ࡋ࠸࡜⪃࠼ࡽࢀࡿࠋ௒ᚋࠊᵝࠎ࡞ධ⇕᮲௳࡟ᑐᛂྍ⬟࡞ᶵᲔᏛ⩦ࣔࢹࣝࡢ㛤Ⓨࢆ㐍ࡵࡿࠋඹྠ◊✲ศ㔝 ᥋ྜᵓ㐀໬タィᏛศ㔝 − 192 −

࣑ࢡ࣐ࣟ̿ࢡࣟட⿣ᡂ㛗ᣲືࡢ㧗⢭ᗘ࣭㧗ຠ⋡ணᡭἲࡢ㛤Ⓨᮾி኱Ꮫᰘ἟୍ᶞ ⫼ᬒ࠾ࡼࡧ┠ⓗ᭱㏆ⴭ⪅ࡽࡣࠊ஦ᚋࡢㄪᩚࣃ࣓࣮ࣛࢱࢆ୍ษ౑⏝ࡍࡿࡇ࡜࡞ࡃࠊ㕲㗰ᮦᩱࡢ⑂ປᙉᗘࢆᐃ㔞ⓗ࡟ணྍ⬟࡞࣐ࣝࢳࢫࢣ࣮ࣝࣔࢹࣝࢆᥦ᱌ࡋࡓ>@ࠋᮏࣔࢹࣝࡣࠊட⿣Ⓨ⏕ࡣ඲ᑑ࿨ࡢࢃࡎ࠿ ᮍ‶࡛⏕ࡌࡿ࡜࠸࠺ᐇ㦂஦ᐇ࡟ᇶ࡙ࡁࠊட⿣ᡂ㛗㐣⛬ࡢࡳ࡛⑂ປᑑ࿨ࢆỴᐃࡍࡿࡶࡢ࡛࠶ࡾࠊ L  ᕧどⓗ࡞᭷㝈せ⣲ゎᯒࠊ LL  ᚤど⤌⧊ࠊ LLL  ட⿣ᡂ㛗ࢆグ㏙ࡍࡿ  ࡇࡢࢧࣈࣔࢹࣝ࡟ࡼࡗ࡚ᵓᡂࡉࢀࡿࠋࡇࡢࣔࢹࣝࡢᐇ
⾜࡟ᚲせ࡞ධຊࢹ࣮ࢱࡣࠊ D  ヨ㦂᮲௳ࠊ E  ᮦᩱࡢᘬᙇ≉ᛶࠊ F  ᮦᩱࡢᚤど⤌⧊᝟ሗࡢࡳ࡛࠶ࡾࠊ஦
ᚋࡢㄪᩚࣃ࣓࣮ࣛࢱ୍ษ⏝࠸ࡿࡇ࡜࡞ࡃࠊᵝࠎ࡞ᙧ≧࣭ᮦᩱ࣭Ⲵ㔜᮲௳࡟ᑐࡋ࡚ࠊ⑂ປᑑ࿨࣭⑂ປ㝈ࡢ㧗⢭ᗘ࡞ண ࡀྍ⬟࡛࠶ࡿࠋࡋ࠿ࡋࠊᮏࣔࢹࣝࢆᩘ࣑࣓࣮ࣜࣝ௨ୖࡢ㛗࠸ட⿣㐍ᒎࢆక࠺⌧㇟࡟㐺⏝ࡍࡿሙྜࠊ⭾኱࡞ᩘࡢ⤖ᬗ⢏ࡢࡍ࡭ࡾᣲືࢆホ౯ࡍࡿᚲせᛶ࠿ࡽ⭾኱࡞ᩘ್ࢥࢫࢺࢆせࡍࡿࡇ࡜࡟࡞ࡿࡓ
ࡵࠊࣔࢹࣝࡢ㐺⏝ᛶ࡟࠾ࡅࡿ࣎ࢺࣝࢿࢵࢡ࡜࡞ࡗ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊⴭ⪅ࡽࡢ࣐ࣝࢳࢫࢣ࣮ࣝࣔࢹࣝ
ࡢ㛗࠸ட⿣࡬ࡢ㐺⏝ࡢ㝿࡟⏕ࡌࡿㄢ㢟ࢆゎỴࡍࡿࡓࡵ࡟ࠊࡑࡢᕧどⓗட⿣ၥ㢟࡛ᗈࡃ౑⏝ࡉࢀ࡚࠸ࡿ
3DULV ๎࡟ᇶ࡙ࡃட⿣ᡂ㛗ࣔࢹࣝ࡜ࡢ㐃ᡂ࡟ࡼࡾࠊ࣑ࢡ࣐ࣟ̿ࢡࣟட⿣ᡂ㛗ᣲືࡢ㧗⢭ᗘ࣭㧗ຠ⋡ண ᡭἲࢆᥦ᱌ࡍࡿࠋ
 ࣐ࣝࢳࢫࢣ࣮ࣝ⑂ປᑑ࿨ண ࣔࢹࣝ ⴭ⪅ࡽࡀ㛤Ⓨࡋࡓ࣐ࣝࢳࢫࢣ࣮ࣝࣔࢹࣝࡢᴫせࢆ )LJ ࡟♧ࡍࠋᮏࣔࢹࣝࡢ᭱ࡶ㔜せ࡞ᇶ♏ࡣࠊᐇ㦂஦ᐇ࡟ᇶ࡙ࡁࠊᮏ◊✲࡛㛤Ⓨࡍࡿࣔࢹ࡛ࣝࡣᮦᩱࡢ⑂ປᑑ࿨ࢆࠕட⿣㐍ᒎᑑ࿨ࠖࡢࡳ࡛ホ౯ࡍࡿࡇ࡜࡛
࠶ࡿࠋࡲࡓࠊᐇ㝿ࡢ⑂ປᦆയࡣᴟࡵ࡚」㞧࡞  ḟඖࡢ≀⌮⌧㇟࡛࠶ࡿࡀࠊ඲࡚ࢆヲ⣽࡟グ㏙ࡍࡿࡇ࡜ࡣࠊ
⑂ປᑑ࿨ࡢᐃ㔞ⓗ࡞ண ࡜࠸࠺ᮏ◊✲ࡢ┠ⓗ࡟ᑐࡋ࡚⌧ᐇⓗ࡞㑅ᢥ⫥࡛ࡣ࡞࠸ࠋࡑࡇ࡛ࠊ㧗ࢧ࢖ࢡࣝ⑂
ປ⌧㇟ࡀ୍⯡ⓗ࡟ࠊ L  ᮦᩱࡢ⾲㠃࡛ட⿣ࡀⓎ⏕ࡋࠊࡑࡢᚋࠊ LL  ᭱኱୺ᛂຊ࡜࡯ࡰ┤ゅ᪉ྥ࡟ட⿣ࡀ㐍ᒎࡍࡿࠊ࡜࠸࠺ᚑ᮶ࡢ◊✲࡛ᚓࡽࢀ࡚࠸ࡿ▱ぢ࡟ࡶ࡜࡙ࡁࠊ ẁ㝵ࡢ  ḟඖࣔࢹࣝ࡜ࡋ࡚࣐ࣝࢳࢫࢣ࣮
ࣝࣔࢹࣝࢆ㛤Ⓨࡍࡿࠋᮏ࣐ࣝࢳࢫࢣ࣮ࣝࣔࢹࣝࡣࠊࠕᕧどⓗ᭷㝈せ⣲ゎᯒ࣭ࠖࠕᚤど⤌⧊ࠖ
࣭ࠕட⿣㐍ᒎࠖ࡟
ᑐࡍࡿࢧࣈࣔࢹࣝ࡟ࡼࡾᵓᡂࡉࢀࡿࠋධຊࢹ࣮ࢱ࡜ࡋ࡚஦๓࡟ᚲせ࡞ࢹ࣮ࢱࡣࠊヨ㦂∦ᵓ㐀≀ࡢእᙧ࠾ࡼࡧቃ⏺᮲௳࡛ᵓᡂࡉࢀࡿࠕⲴ㔜᮲௳ࠖࠊ㝆అᙉᗘ࣭ᘬᙇᙉᗘ࣭᩿㠃ࡢ཰⦰⋡࡜࠸࠺ࠕ༢⣧ᘬᙇヨ㦂⤖ᯝࠖࠊ࠾ࡼࡧࠊᮦᩱࡢ (%6' ࢹ࣮ࢱࡼࡾྲྀᚓ
ྍ⬟࡞⢏⏺㛫㊥㞳ศᕸ࣭⤖ᬗ⢏ࡢ㛗ᚄ▷ᚄศᕸ࣭(XOHU ゅࡢ᥋⥆᝟ሗ㸦࣭ᚲせ࡛࠶ࢀࡤࣃ࣮ࣛ࢖ࢺศ⋡㸧࡜࠸࠺ࠕᚤど⤌⧊ศᕸ࡛ࠖ࠶ࡿࠋᮏࣔࢹࣝࡣࠊࡇࢀࡽࡢ஦๓࡟ྲྀᚓ
ྍ⬟࡞᝟ሗࡢࡳࢆ⏝࠸࡚ᐃ㔞ⓗ࡟⑂ປᑑ࿨
࠾ࡼࡧ⑂ປ㝈ࢆண ࡍࡿࡶࡢ࡛࠶ࡾࠊ≀⌮ⓗ࡞ព࿡ࡀ᫂☜࡛ࡣ࡞࠸ᮦᩱᐃᩘ➼ࡢ஦ᚋࡢྜࢃࡏ㎸ࡳࣃ࣓࣮ࣛࢱࡣ୙せ࡛࠶ࡿࠋྛ
ࢧࣈࣔࢹࣝࡢヲ⣽࡟ࡘ࠸࡚ࡣᩥ⊩>@ࢆཧ↷ࡉࢀࡓ࠸ࠋ
)LJ ࣐ࣝࢳࢫࢣ࣮ࣝ⑂ປᑑ࿨ண ࣔࢹࣝࡢᴫせ ࣑ࢡ࣐ࣟ̿ࢡࣟட⿣ᡂ㛗ᣲືࡢ㧗⢭ᗘ࣭㧗ຠ⋡ண ᡭἲ ࣐ࣝࢳࢫࢣ࣮ࣝࣔࢹࣝࢆ⏝࠸ࡿࡇ࡜࡛ࠊ⑂ປட⿣ࡢ㐍ᒎᣲືࢆ࣑ࢡ࣐ࣟ̿ࢡࣟࡢ඲㡿ᇦ୍࡛ษࡢᮍ▱ࣃ࣓࣮ࣛࢱࢆ౑⏝ࡍࡿࡇ࡜࡞ࡃ㧗⢭ᗘ࡟ண ࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࡀࠊட⿣㛗ࡉࡀᩘ࣑࣓࣮ࣜࢺࣝࢆ㉸࠼ࡿ㛗࠸ட⿣ࢆᑐ㇟࡜ࡋࡓሙྜࠊ⭾኱࡞ィ⟬ࢥࢫࢺࢆせࡍࡿࠋ୍᪉ࠊᕧどⓗட⿣ၥ㢟࡛ᗈࡃ౑⏝ࡉࢀ࡚,QSXWGDWD

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)LJ 7HPSHUDWXUHGLVWULEXWLRQLQVLPXODWLRQ㸲㸬⤖ㄽ ᮏ◊✲࡛ࡣ㸪㕲⣔ᮦᩱࡢ㟁ụࢣ࣮ࢫ࡜㖡ྜ㔠ࢱࣈᮦࡢ∦ഃ᢬ᢠࢫ࣏ࢵࢺ⁐᥋࡟࠾ࡅࡿ᥋ྜ⌧㇟ࡢゎ᫂ࢆ┠ⓗ࡜ࡋ࡚㸪᥋ྜ㒊࠾ࡼࡧ᥋ྜ⏺㠃ࡢ≉ᛶᢕᥱ㸪࠾ࡼࡧᩘ್ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ᥼⏝ࡋࡓ⁐᥋᫬ࡢⓎ⇕ᙧែ࡟ࡘ࠸᳨࡚
ウࢆ⾜ࡗࡓ㸬ࡑࡢ⤖ᯝ㸪᥋ྜ⏺㠃࡟࠾ࡅࡿ᥋ྜ㒊ᙧᡂせᅉࡢᇶ♏▱ぢࡀᚓࡽࢀࡓ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⤌⧊ホ౯Ꮫศ㔝㸧− 196 −

⮬ື㌴⏝㗰ᯈࢆẕᮦ࡜ࡍࡿ⣧ࡏࢇ᩿ᆺ࣮ࣞࢨ࣮᥋ྜ⥅ᡭࡢ⑂ປ◚ቯ࣓࢝ࢽࢬ࣒ゎ᫂ᗈᓥ኱Ꮫ኱Ꮫ㝔 ඛ㐍⌮ᕤ⣔⛉Ꮫ◊✲⛉ ᶵᲔᕤᏛࣉࣟࢢ࣒ࣛ᭖ ⣫அ
1. ◊✲⫼ᬒ࣭┠ⓗ⮬ື㌴ศ㔝࡟࠾࠸࡚ⷧ㗰ᯈࢆ⏝࠸ࡓ㌴୧㔜㔞ࡢ㍍㔞໬ࢆ㐍ࡵࡿ࡟࠶ࡓࡾ㸪ࣞ ࣮ࢨ࣮⁐᥋⥅ᡭࡢ⑂ປ≉ᛶ࠾ࡼࡧ⑂ປ◚ቯᶵᵓ࡟㛵ࡍࡿ▱ぢࡣಙ㢗ᛶ࠾ࡼࡧᏳ඲ᛶࡢほⅬ࠿ࡽ㔜せ࡛࠶ࡿ㸬ࡲࡓ㸪⁐᥋᪋ᕤయࡢሙྜ㸪⥅ᡭࡢ㈇Ⲵᙧᘧ࡟ࡼࡾ⑂ປ≉ᛶࡀኚ໬ࡍࡿࡓࡵ㸪ࡑࢀࡽࢆᐃ㔞ⓗ࠿ࡘ⤫୍ⓗ࡟ホ౯ࡍࡿࡇ࡜ࡀ㔜せ࡜ࡉࢀࡿ㸬ࡑࡇ࡛㸪ᘬᙇ࣭᭤ࡆ࡞࡝ᵝࠎ࡞㈇Ⲵᙧᘧࡢ୰࡛㸪ẚ㍑ⓗ㸪༢⣧໬ࡋࡓᛂຊ≧ែࢆ෌⌧ࡋ᫆࠸࡜ࡉࢀࡿ⣧ࡏࢇ᩿ᆺࡢ
⑂ປヨ㦂ࢆᐇ᪋ࡋ㸪⑂ປ◚ቯ࣓࢝ࢽࢬ࣒ࡢゎ᫂ࢆ⾜࠺ࡇ࡜ࢆ◊✲┠ⓗ࡜ࡋࡓ㸬
2. ౪ヨᮦ࣭࠾ࡼࡧᐇ㦂᪉ἲ ᮏ◊✲࡛ࡣᯈཌ t=1.2 mm ࡢ 270 MPa ⣭⮬ື㌴⏝㗰ᯈ(JSC270D)࠾ࡼࡧ෭㛫ᅽᘏ㗰ᯈ(SPCC)ࢆ౪ヨᮦᩱ࡜ࡋࡓ㸬ྠᮦࢆᯈ≧࡟ᶵᲔຍᕤᚋ Fig. 1(a),(b)࡟♧ࡍࡼ࠺࡟ྠࡌᮦᩱࡢ㗰ᯈྠኈࢆ㔜ࡡྜࢃࡏ㸪࣮ࣞࢨ࣮⁐᥋࡟ࡼࡗ࡚⥺᥋ྜࢆ⾜࠸ࡑࢀࡒࢀヨ㦂࡟౪ࡋࡓ㸬࡞࠾㸪ᮏ◊✲࡟࡚ྠ➼ࡢᙉᗘࣞ࣋ࣝࢆᣢࡘ 2 ✀㢮ࡢ㗰ᯈࢆ౑⏝ࡋࡓࡀ㸪ࡇࢀࡣᮦ✀ࡢ㐪࠸࡟ࡼࡿ⁐᥋⥅ᡭࡢ⑂ປ≉ᛶࢆẚ㍑᳨ウࡍࡿࡓࡵ࡛࠶ࡾ㸪ࡲࡓ୧ᮦ࡜ࡶྠ➼ࡢ⑂ປ≉ᛶࢆ♧ࡍࡇ࡜࠿ࡽ㸪ᮏ◊✲࡛ࡣ୧ᮦ࡛సᡂࡋࡓ⁐᥋⥅ᡭࢆྠ୍ࡢࡶࡢ࡜ࡳ࡞ࡋ᳨࡚ウࡋࡓ㸬

4㽢I8.1

50

50
15 15

Weld bead(a) Jig non-fixed specimen (TS-1: Tension-share specimen)

15 15

27

250
(a) Jig fixed specimen (TS-2: Pure tension-share specimen)
Fig. 1 Shape of specimen.
3. ヨ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹTS-1(἞ලᣊ᮰࡞ࡋ)ヨ㦂∦࠾ࡼࡧ TS-2(἞ලᣊ᮰࠶ࡾ)ヨ㦂∦ࡢ⑂ປヨ㦂⤖ᯝࢆ㸪ࢆ Fig. 2 ࡟♧ࡍ㸬࡞࠾㸪ྠᅗ࡟࠾ࡅࡿ⦪㍈ࡣヨ㦂∦࡟స⏝ࡍࡿヨ㦂ຊ᣺ᖜࢆ㸪ᶓ㍈࡟◚᩿࡟⮳ࡿࡲ࡛ࡢ⧞㏉ࡋᩘࢆࡑࢀࡒࢀ♧ࡋ࡚࠸ࡿ㸬ࡲࡎ㸪㈇Ⲵヨ㦂ຊ᣺ᖜ Pa ࡟╔┠ࡋ࡚⤖ᯝࢆᩚ⌮ࡍࡿ㸬Pa ࡀ 1.3 kN ௨ୖ࡛ࡣ୧ヨ㦂∦ࡢ⑂ປᑑ࿨ࡣྠ⛬ᗘ࡛࠶ࡿ㸬୍᪉࡛㸪Pa ࡀ 1.2 kN ௨ୗ࡛ࡣ୧ヨ㦂∦ࡢ⑂ປᑑ࿨࡟ᕪࡀ⏕ࡌጞࡵ㸪ᮍ◚᩿࡜ᐃ⩏ࡋࡓ⧞㏉ࡋᩘ
N=1.0×107 cycles ࡟⮳ࡿ࡟ࡣ㸪TS-1 ヨ㦂∦࡛ࡣ Pa=0.65 kN ࡔࡀ㸪TS-2 ヨ㦂∦ࡣ Pa=1.0 kN ࡢ᫬Ⅼ࡛฿㐩ࡋ࡚࠸ࡿ㸬ḟ࡟୧ヨ㦂∦ࡢ◚ቯᶵᵓ࡟ࡘ࠸࡚᩿㠃ほᐹࡢほⅬ࠿ࡽẚ㍑ࢆ⾜ࡗࡓ㸬పヨ㦂ຊ᣺ᖜᇦࡢ N/Nf=10 %࡟

− 197 −

࠾ࡅࡿ୧ヨ㦂∦ࡢᵝ┦ࢆ Fig. 3(a), (b)࡟♧ࡍ㸬ࡇࢀࡽࡢ⤖ᯝࡼࡾ㸪ࡁ⿣ࡣ୧ヨ㦂∦ඹ࡟⁐᥋⤊➃ഃࡀඃඛⓗ࡟㐍ᒎࡍࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡲࡓ㸪୧ヨ㦂∦ඹ࡟ N/Nf=10 %ࡢ᫬Ⅼ࡛᫂☜࡞ࡁ⿣ࢆ☜ㄆ࡛ࡁ㸪Ⓨ⏕ᑑ࿨ࡼࡾࡶ㐍ᒎᑑ࿨ࡢ๭ྜࡀ㠀ᖖ࡟㧗࠸ࡇ࡜ࢆព࿡ࡋ࡚࠸ࡿ㸬࡞࠾㸪పヨ㦂ຊ᣺ᖜᇦ࡟࠾ࡅࡿ TS-2 ヨ㦂∦ࡢ⑂ປᑑ࿨ࡀ
TS-1 ヨ㦂∦ࡢࡑࢀ࡜ẚ㍑ࡋᘏఙࡍࡿ⌧㇟ࡀ㸪ࡁ⿣㐍ᒎ᪉ྥࡸ࣮ࣞࢨ࣮⁐᥋࡟ࡼࡿ⁐᥋㔠ᒓ㒊ࡢ⤌⧊ᙧᡂ࡟㉳

Applied force amplitude, Pa(kN)ᅉࡋ࡚࠸ࡿࡢ࠿࡜࠸࠺ ྍ⬟ᛶ࡟ࡘ࠸࡚ࡣ௒ᚋࡢ᳨ウㄢ㢟࡛࠶ࡿ㸬

TS-1
TS-2

2.0

1.0

0
106
105
107
104
Number of cycles to failure, Nf (cycles)

103

108

Fig. 2 P-N curve in Laser welding specimen㸬
ጞ➃

ጞ➃

⤊➃

0.5mm
(a) TS-1 Pa=0.9 kN

0.5mm

0.5mm
⤊➃

0.5mm

(b) TS-2 Pa=1.25 kN
Fig. 3 Observation results of cross section of fractured specimen.

㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⤌⧊ホ౯Ꮫศ㔝㸧− 198 −㧗ᙉᗘ㗰࣮ࣞࢨ⁐᥋⥅ᡭࡢᩓ㐓࢚ࢿࣝࢠ࡟ᇶ࡙࠸ࡓ⑂ປ㝈ᗘ᥎ᐃ⚄ᡞ኱Ꮫ኱Ꮫ㝔 ᕤᏛ◊✲⛉ ᶵᲔᕤᏛᑓᨷ
ᵓ㐀Ᏻ඲ホ౯Ꮫ◊✲ᐊ ᑠᕝ ⿱ᶞ


◊✲⫼ᬒ

㧗ᙉᗘ㗰ࡢ⁐᥋㒊ࡣ◳໬ࡋࡸࡍࡃ㸪ᘏᛶࡢపୗ࡟ࡼࡾప ๭ࢀࡸࡌࢇᛶࡢຎ໬ࡀ⏕ࡌࡸࡍ࠸㸬ࡲࡓ㸪⁐᥋㒊ࡢ⇕ᙳ㡪㒊 +$= 㸪≉࡟⁐᥋㔠ᒓ࡜ࡢቃ⏺௜㏆࡟࠾࠸࡚⼥Ⅼ㏆ࡃࡲ࡛ࡢ㧗࠸ ᗘ࡟ຍ⇕ࡉࢀࡿࡓࡵ㸪⇕ᒚṔࡀṧࡾ⤖ᬗ⢏ࡀᡂ㛗࣭⢒኱໬ࡍࡿࡇ࡜࡛ᙉᗘࡀపୗࡍࡿ +$= ㌾໬࡞࡝ࡢ஦㇟ࡀ☜ㄆࡉࢀ࡚࠸ࡿ㸬⁐᥋⥅ᡭࡢᏳ඲ᛶ࣭ಙ㢗ᛶࢆ☜ಖࡍࡿࡓࡵ࡟ࡣ㸪◚ቯࡢ୺せᅉ࡛࠶ࡿ⑂ປ࡟ᑐࡍࡿホ౯ࢆ⾜࠺ᚲせࡀ࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ᩓ㐓࢚ࢿࣝࢠ࡟ᇶ࡙ࡃ⑂ປ㝈ᗘホ౯ἲ࡟╔┠ࡋࡓ㸬ᩓ㐓࢚ࢿࣝࢠ࡜ࡣ㸪ᒁᡤⓗ࡞ረᛶኚᙧ࡟㉳ᅉࡋࡓ࢚ࢿࣝࢠࡢᩓ㐓࡟ࡼࡿᚤ
ᑠ࡞Ⓨ⇕࡛࠶ࡿ㸬ᩓ㐓࢚ࢿࣝࢠኚ໬ࢆ㏣ᚑࡍࡿࡇ࡜࡛㸪ᖜᗈ࠸ᮦᩱ࡟ᑐࡋ࡚◚ቯಶᡤࢆྍど໬࡛ࡁࡿ࡜࡜ࡶ࡟㸪㎿㏿࡞⑂ປᙉᗘホ౯ࢆᐇ⌧࡛ࡁࡿ㸬ᮏሗ࡛ࡣ㸪㧗ᙉᗘ㗰ࡢ࣮ࣞࢨ⁐᥋⥅ᡭࢆᑐ㇟࡟㸪ᩓ㐓࢚ࢿࣝࢠ࡟ᇶ࡙ࡃ⑂ປᙉᗘ
᥎ᐃ࡟ᑐࡍࡿ㐺⏝ᛶ࡟ࡘ࠸࡚ᐇ㦂ⓗ᳨ウࢆ⾜ࡗࡓ㸬




ヨ㦂᪉ἲ

ᮏ◊✲࡛⏝࠸ࡓᮦᩱࡣ㸪ᯈཌ PP ࡢ㧗ᙉᗘ㗰ᯈ -6&5 ࡛࠶ࡿ㸬ྠᮦࢆ PP ࡢᯈᮦ࡟ᶵᲔຍᕤᚋ㸪 ᯛࡢ㗰ᯈࡢ㛗ᡭ᪉ྥഃࢆ✺ྜࡏ㸪✺ྜࡏ㠃ࢆࢠࣕࢵࣉ PP ࡛ 7DEOH ࡢ᮲௳ࡢୗ㸪࣮ࣞࢨ⁐᥋ࢆ᪋ᕤࡍࡿ㸬ࡑࡢᚋ㸪స〇ࡋࡓ⥅ᡭࡣ㸪⁐᥋᪉ྥ࡟ᑐࡋ࡚ᆶ┤᪉ྥ࡟ᯈᖜ PP ࡢ㛫㝸࡛ )LJ ࡟♧ࡍࢲࣥ࣋ࣝ≧࡟ᨺ㟁ຍᕤ࡟࡚ษ
ฟࡋ౪ヨᮦ࡜ࡋࡓ㸬࡞࠾㸪౪ヨᮦࡢ᥇ྲྀࡍࡿ⟠ᡤࡣ㸪⁐᥋ࣅ࣮ࢻ࡟࡚ࣈ࣮࣮ࣟ࣍ࣝ࡞࡝ࡢḞ㝗ࡀᑡ࡞࠸㒊ศࢆ㑅ᢥࡋ࡚࠸ࡿ㸬ࡲࡓ㸪⁐᥋⥅ᡭࡢ⾲㠃ࢆ࢚࣓࣮ࣜ⣬  ␒࡛‵ᘧ◊☻ࢆᐇ᪋ࡋ㸪⁐᥋㒊ࡢพࡳࢆ㝖ཤࡋᖹ⁥࡞≧ែ࡟௙ୖࡆࡓ◊☻⥅ᡭࢆ‽ഛࡋ㸪⁐᥋ࡋࡓࡲࡲࡢ⥅ᡭ㸦௨㝆㸪⁐᥋ࡲࡲ⥅ᡭ࡜⛠ࡍࡿ㸧࡜ࡢẚ㍑᳨ウࢆ⾜࠺㸬ᙉᗘホ౯࡟࠾࠸࡚ࡣ㸪)LJ ࡟♧ࡋࡓࢲࣥ࣋ࣝୖࡢᙧ≧࡟ຍᕤࡋࡓẕᮦヨ㦂∦ࢆู㏵‽ഛࡋࡓ㸬:HOGLQJ
VSHHGPPLQ'HIRFXVOHQJWKPP

3XVK
DQJOH
GHJ













(OHFWULF
SRZHUN:



7DEOH:HOGLQJFRQGLWLRQ:HOGEHDG)LJ6KDSHDQGGLPHQVLRQVRIVSHFLPHQ XQLWPP ⥅ᡭࡢ⑂ປヨ㦂࠾ࡼࡧᩓ㐓࢚ࢿࣝࢠィ ࢆ⾜࠺ᛂຊ᣺ᖜࢆ㝵ẁ≧࡟ቑຍࡉࡏࡿ㝵ẁ≧ᛂຊ᣺ᖜቑຍヨ㦂ࡣ㸪ᛂຊẚ 5 㸪࿘Ἴᩘ I +]㸪ᮍ◚᩿᫬ࡢヨ㦂ᡴษࡾᅇᩘࡣ 1 îF\FOHV ࡜ࡋࡓ㸬ࡲࡓ㸪㝵ẁ≧ᛂຊ᣺ᖜቑຍヨ㦂ࡣ㸪03D ࡈ࡜࡟ᛂຊ᣺ᖜࢆቑຍࡉࡏ㸪ྛᛂຊ᣺ᖜࡢ⧞㏉ࡋᩘࡣ F\FOHV ࡜ࡋࡓ㸬ࡑࡢᚋ㸪ྛᛂຊ᣺ᖜࡢ௦⾲್࡜࡞ࡿᩓ㐓࢚ࢿࣝࢠࢆࣉࣟࢵࢺࡍࡿ࡜㸪ᩓ㐓࢚ࢿࣝࢠࡣ࠶ࡿᛂຊ᣺ᖜࢆቃ࡟ቑຍࡍࡿഴྥࢆ♧ࡍ㸬ࡇࡢᛂຊ᣺ᖜ
ࢆ⟬ฟࡍࡿࡓࡵ࡟㸪ᮏ◊✲࡛ࡣ㸪௨ୗ࡟♧ࡍ  㡿ᇦศ๭᭱ᑠ㏆ఝἲࢆ⏝࠸ࡓ㸬,ᐃࡉࢀࡓᩓ㐓࢚ࢿࣝࢠࢆ㸪௵ពࡢ್ [\ ࡟࡚ప ࢢ࣮ࣝࣉ㸦[[㸧࡜㧗 ࢢ࣮ࣝࣉ㸦[Ӎ[㸧ࡢ  㡿ᇦ࡟ศࡅࡿ㸬ప ࢢ࣮ࣝࣉࡀ┤⥺㏆ఝ㸪㧗 ࢢ࣮ࣝࣉࡀ஧ḟ᭤⥺㏆ఝ࡛᭱ᑠ஧஌㏆ఝࡍࡿ࡜ࡁ㸪ప ࣭㧗 ࡢྛࢢ࣮ࣝ
ࣉࡢ㏆ఝᘧࡣࡑࢀࡒࢀᘧ  㸪ᘧ  ࡛♧ࡉࢀࡿ㸬 ‫ݕ‬௅ ൌ ܽሺ‫ ݔ‬െ ‫ݔ‬଴ ሻ ൅ ‫ݕ‬଴ ‫ݕ‬ு ൌ ܿሺ‫ ݔ‬െ ‫ݔ‬଴

ሻଶ







൅ ݀ሺ‫ ݔ‬െ ‫ݔ‬଴ ሻ ൅ ‫ݕ‬଴  ,, ప ࣭㧗 ࡢྛࢢ࣮ࣝࣉࡢ ᐃࢹ࣮ࢱ [L\L ࡜㏆ఝᘧ࡜ࡢṧᕪ஧஌࿴ࢆࡑࢀࡒࢀᘧ  㸪ᘧ  ࠿ࡽホ౯ࡍࡿ㸬ܴ௅ ൌ σ௜ ሾܽሺ‫ݔ‬௜ െ ‫ݔ‬଴ ሻ ൅ ‫ݕ‬଴ െ ‫ݕ‬௜ ሿଶ ܴு ൌ σ௜ ሾܿሺ‫ݔ‬௜ െ ‫ݔ‬଴

ሻଶ



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ሿଶ

൅ ݀ሺ‫ݔ‬௜ െ ‫ݔ‬଴ ሻ ൅ ‫ݕ‬଴ െ ‫ݕ‬௜   ,,,ప ࢢ࣮ࣝࣉ࡛ṧᕪ஧஌࿴ࡀ᭱ᑠ࡜࡞ࡿ 5/D  ࣃ࣓࣮ࣛࢱ D ࢆᘧ  ࡼࡾ⟬ฟࡍࡿ㸬− 199 −ܽሾσ௜ሺ‫ݔ‬௜ െ ‫ݔ‬଴ ሻଶ ሿ ൅ σ௜ሺ‫ݔ‬௜ െ ‫ݔ‬଴ ሻሺ‫ݕ‬଴ െ ‫ݕ‬௜ ሻ ൌ Ͳ,9რ࡜ྠᵝ࡟㸪㧗 ࢢ࣮ࣝࣉ࡛ṧᕪ஧஌࿴ࡀ᭱ᑠ࡜࡞ࡿ 5+F 㸪5+G  ࣃ࣓࣮ࣛࢱ FG ࢆᘧ  ࡜ᘧ  ࡢ㐃❧୍ḟ᪉⛬ᘧࡼࡾ⟬ฟࡍࡿ㸬ܿሾσ௜ ሺ‫ݔ‬௜ െ ‫ݔ‬଴ ሻସ ሿ ൅ ݀ሾσ௜ ሺ‫ݔ‬௜ െ ‫ݔ‬଴ ሻଷ ሿ ൅ σ௜ ሺ‫ݔ‬௜ െ ‫ݔ‬଴ ሻଶ ሺ‫ݕ‬଴ െ ‫ݕ‬௜ ሻ ൌ Ͳܿሾσ௜ ሺ‫ݔ‬௜ െ ‫ݔ‬଴ሻଷ ሿ൅ ݀ሾσ௜ ሺ‫ݔ‬௜ െ ‫ݔ‬଴ሻଶ ሿ൅ σ௜ ሺ‫ݔ‬௜ െ ‫ݔ‬଴ ሻሺ‫ݕ‬଴ െ ‫ݕ‬௜ ሻ ൌ Ͳ

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9 ྛ㡿ᇦࡢṧᕪᖹ᪉࿴ࡢ࿴ 5 ࢆᘧ  ࠿ࡽ⟬ฟࡍࡿ㸬ܴ௦௨௠ ൌ ܴ௅ ൅ ܴு 

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ẕᮦヨ㦂∦࠾ࡼࡧ⁐᥋ࡲࡲ⥅ᡭ㸪◊☻᥋ᡭࡢ  ✀㢮ࡢࡣ㸪㈇Ⲵヨ㦂ຊ᣺ᖜࢆ◚᩿⟠ᡤࡢ㠃✚࡛㝖ࡋࡓᛂຊ᣺ᖜ㸪ᶓ㍈ࡣ◚᩿ࡲ࡛ࡢ⧞㏉ࡋᩘࢆࡑࢀࡒࢀ♧ࡋ࡚࠸ࡿ㸬ྠᅗ࠿ࡽ㸪⁐᥋ࡲࡲ⥅ᡭ࠾ࡼࡧ◊☻⥅ᡭࡢ⑂ປ㝈ᗘࡣ㸪ࡑࢀࡒࢀ a03D㸪a03D ࡛࠶ࡾ㸪⁐᥋ࡲࡲ⥅ᡭࡢ⑂ປ㝈ᗘࡣ㸪◊☻⥅ᡭࡢࡑࢀ࡜ẚ࡭ప࠸㸬ẕᮦヨ㦂∦ࡢ'LVVLSDWHG HQHUJ\ǻ7 .

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⑂ປ㝈ᗘࡣ㸪a03D ࡛࠶ࡾ㸪⁐᥋⥅ᡭࡢ⑂ປ㝈ᗘࡣ

/RZWHPSJURXS+LJK WHPSJURXSẕᮦヨ㦂∦࡜ẚ㍑ࡍࡿ࡜ప࠸್ࢆ♧ࡍ࡜⪃࠼ࡽࢀࡿ㸬ྛࢢ࣮ࣝࣉࡢ㏆ఝ⥺ࢆ♧ࡋ࡚࠸ࡿ㸬ᩓ㐓࢚ࢿࣝࢠ࡜ࡋ࡚㸪㝵ẁ≧ᛂຊቑຍヨ㦂⤊஢ᚋ࡟◚᩿ࡉࡏࡓヨ㦂∦࠿ࡽ☜ㄆࡉࢀࡓࡁ⿣Ⓨ⏕఩⨨ࢆ୰ᚰ࡜ࡍࡿ SL[HOV ࡢᖹᆒ್ࢆ⏝࠸ࡓ㸬ẕᮦヨ㦂∦ࡢ  ࢢ࣮ࣝࣉࡢቃ⏺್ࡣ㸪03D


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6WUHVV DPSOLWXGH 03D



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

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03D ࡛࠶ࡗࡓ㸬࠸ࡎࢀࡢ್ࡶ㸪61 ᭤⥺࡟࠾ࡅࡿ⑂ປ

ࡢ⑂ປ㝈ᗘࡢ㐪࠸ࢆホ౯࡛ࡁࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬



/RZWHPSJURXS+LJK WHPSJURXS



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࡛࠶ࡾ㸪⁐᥋⥅ᡭ࠾ࡼࡧ◊☻⥅ᡭࡢࡑࢀࡣ㸪03D㸪ࢠࢆ⏝࠸࡚㧗ᙇຊ㗰ᯈࡢẕᮦ࠾ࡼࡧࡑࡢ࣮ࣞࢨ⁐᥋⥅ᡭ

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'LVVLSDWHG HQHUJ\ǻ7 .

ࡓ㸪ᅗ୰ࡢᐇ⥺ࡣ  㡿ᇦศ๭᭱ᑠ㏆ఝἲࢆᐇ᪋ࡋࡓ㝿ࡢ㸪

D %DVHPHWDOẕᮦヨ㦂∦࠾ࡼࡧྛ✀⁐᥋⥅ᡭࡢẁ㝵≧ᛂຊ᣺ᖜቑຍ
ヨ㦂࡟࠾ࡅࡿᩓ㐓࢚ࢿࣝࢠィ ⤖ᯝࢆ )LJ ࡟♧ࡍ㸬ࡲ   
6WUHVVDPSOLWXGH ıD 03D   
6WUHVVDPSOLWXGH ıD 03D

F 3ROLVKMRLQW)LJ0HDVXUHUHVXOWVRIGLVVLSDWHGHQHUJ\
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

1XPEHURIF\FOHVWRIDLOXUH F\FOHV㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⤌⧊ホ౯Ꮫศ㔝㸧

)LJ61 FXUYHV

− 200 −

7L$O9 ୰࡟ῧຍࡋࡓ࣊ࢸࣟจᅛ᰾ 7L& ࡢ⁐ゎᣲືࣔࢹࣝ
᪩✄⏣኱Ꮫ⌮ᕤᏛ⾡㝔ᇶᖿ⌮ᕤᏛ◊✲⛉㤿ῲຬྖ㛛஭Ὧ⾨ 㕥ᮌ㐍⿵
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㸯㸬⥴ゝ
㔠ᒓ✚ᒙ㐀ᙧ࡟࠾࠸࡚㸪ẕ┦ 7L$O9 ⢊ᮎ࡟࣊ࢸࣟจᅛ᰾࡜ࡋ࡚ 7L& ⢊ᮎࢆῧຍࡋ⁐⼥จᅛࡉࡏࡿࡇ࡜࡛㸪⤖ᬗ⢏ࡀᚤ⣽໬ࡋᙉᗘࡀྥୖࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ  㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ຍ⇕୰࡟ 7L& ࡀ⁐ゎࡋ㸪ᚤ⣽໬ࡢ᰾࡜ࡋ࡚ᶵ⬟ࡋ࡞࠸ᜍࢀࡀ♧၀ࡉࢀࡓ  㸬ᮏᢏ⾡ࡢᬑཬ࡟ࡣ 7L& ࡢ⁐ゎ㏿ᗘㄽࢆゎ᫂ࡋ㸪⤖ᬗ⢏ᚤ⣽໬࡟㐺ษ࡞ຍ⇕㔞ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࡀ㔜せ࡛࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪ࡲࡎ᥋ྜ◊ࡢ㧗 ࣮ࣞࢨ࣮㢧ᚤ㙾⿦⨨ࢆ⏝࠸࡚㸪ຍ⇕᫬ࡢ 7L$O9 ྜ㔠୰ࡢ  ࡘࡢ 7L& ࡀ⁐ࡅࡿᵝᏊࢆ┤᥋ほᐹࡍࡿࡇ࡜ࢆィ⏬ࡋ࡚࠸ࡓ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ணഛᐇ㦂ẁ㝵࡛ 7L$O9 ຍ⇕୰࡟ࡿࡘࡰࡀ◚ᦆࡍࡿࡓࡵ࡟ᐇ㦂ࡀᅔ㞴࡛࠶ࡿ࡜ุ᩿ࡋࡓ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪௨๓࡟ᆅୖ㟼㟁ᾋ㐟ἲ㸦(6/㸧ࡢᐇ㦂࡛ᚓࡽࢀࡓᐇ㦂ヨᩱほᐹ⤖ᯝ࡜ࣇ࢙࣮ࢬࣇ࢕࣮ࣝࢻ
ࢩ࣑࣮ࣗࣞࢩࣙࣥ࠾ࡼࡧ⌮ㄽࣔࢹࣝ࡟ࡼࡾ㸪(6/ ᐇ㦂ࡢຍ⇕᮲௳ࡀ 7L& ࡢ⁐ゎᣲື࡟୚࠼ࡿᙳ㡪ࢆ♧ࡋ㸪7L& ࡢ⁐ゎ㏿ᗘᘧࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬㸰㸬ᐇ㦂᪉ἲ
7L$O9 ⢊ᮎ࡟ᑐࡋ㸪7L& ⢊ᮎࢆ PDVVῧຍࡋࡓΰྜ⢊ᮎࢆ 636 ↝⤖ࡋࡓᚋ㸪Ᏻᐃᾋ㐟ࡢࡓࡵ࡟࢔࣮ࢡ⅔࡟࡚⌫ᙧ࡟ᡂᙧࡋ㸪(6/ ࡟࡚⁐⼥จᅛࡉࡏࡓ㸬ᅗ㸯࡟♧ࡍࡼ࠺࡟⼥Ⅼ 70 ௨ୖࡢ᫬㛫⠊ᅖ࡛ヨᩱ ᗘࡢ஧஌ 7 ࢆ✚ศࡋࡓ㸪ຍ⇕✚ศ್ , 7W  ࡢ␗࡞ࡿ」ᩘヨᩱࢆྲྀᚓࡋࡓ㸬ᐇ㦂ᚋヨᩱࢆ◊☻ࡋ㸪᩿㠃ࡢ *UDLQ ࣐ࢵࣉࢆ㟁Ꮚ⥺ᚋ᪉ᩓ஘ᅇᢡ㸦(%6'㸧ἲ࡛ྲྀᚓࡋࡓ㸬ḟ࡟ヨᩱ᩿㠃ࢆ࢚ࢵࢳࣥࢢฎ⌮ࡋࡓᚋ㸪㉮ᰝ㟁Ꮚ㢧ᚤ㙾㸦6(0㸧࡜㟁Ꮚࣉ࣮ࣟࣈᚤᑠศᯒჾ㸦(30$㸧࡛จᅛ⤌⧊ࢆほᐹࡋ㸪ẕ┦࡟ṧᏑࡍࡿ 7L& 㔞ࢆゎᯒࡋࡓ  㸬㸱㸬ᩘ್ゎᯒ
ᮏ◊✲࡛ࡣ㸪㏻ᖖᣑᩓ⏺㠃ࣔࢹࣝ࡟ࡼࡾᮦᩱࡢ⤌⧊ᙧᡂࡢィ⟬ࢆ⾜࠺ࣇ࢙࣮ࢬࣇ࢕࣮ࣝࢻ㸦3)㸧ࢩ࣑࣮ࣗࣞ
ࢩࣙࣥࢯࣇࢺ࢙࢘࢔ 0,&5(6670ࢆ⏝࠸࡚㸪ᾮ┦ 7L ୰࡟㓄⨨ࡋࡓᅛ┦ & ࡢ⁐ゎࢩ࣑࣮ࣗࣞࢩࣙࣥࡶᐇ᪋ࡋࡓ㸬㸲㸬ᐇ㦂⤖ᯝ࣭⪃ᐹྛຍ⇕✚ศ್࡟ᑐࡍࡿจᅛ⤌⧊࡜ṧᏑ 7L& 㔞ࡢ┦㛵ࡼࡾ㸪ຍ⇕✚ศ್ࡀ .ѿ V ᮍ‶ࡢ᫬㸪⤖ᬗ⢏ࡣᚤ⣽໬ࡋ㸪ሢ≧Ⅳ໬≀ࡀ☜ㄆࡉࢀࡓ㸬7L ࡜ & ࡢ⤌ᡂẚࡀ⣙  ࡛࠶ࡿࡇ࡜ࡸ㸪ῧຍ 7L& ࡜ྠᵝࡢᙧ≧ࢆࡋ࡚࠸ࡿࡇ࡜࠿ࡽ㸪ṧᏑ 7L& ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ᅗ㸰࡟♧ࡍࡼ࠺࡟ຍ⇕✚ศ್ࡢቑຍ࡟క࠸ṧᏑ 7L& 㔞ࡣᣦᩘ㛵ᩘⓗ࡟ῶᑡࡋࡓ㸬จᅛ᫬㛫࡟ᑐࡋ࡚ᅛ┦⋡ࡀᣦᩘ㛵ᩘⓗ࡟ቑຍࡍࡿ -RKQVRQ0HKO$YUDPL.ROPRJRORY ᘧࡢᑐ⛠ᛶࡀ㸪7L& ࡢ⁐ゎ࡟࠾࠸࡚ᡂ❧ࡋ࡚࠸ࡿ࡜࠸࠼ࡿ㸬⥆࠸࡚ᣑᩓ⌮ㄽ࡟ᇶ࡙࠸࡚⁐ゎ㏿ᗘᘧࢆసᡂࡋࡓ㸬⌫ᗙᶆ⣔࡟࠾ࡅࡿࣇ࢕ࢵࢡࡢ➨஧ἲ๎࡜㉁㔞ಖᏑ๎ࢆ㐃❧ࡋ㸪㏆ఝゎࢆ⟬ฟࡋࡓ㸬ᣑᩓಀᩘ ' ࢆ  ࠿ࡽ 
Pѿ V ࡲ࡛ኚ໬ࡉࡏ㸪⁐ゎ㏿ᗘᘧࢆ 7L& ࡢ⢏ᗘศᕸࡢྛ⢏࡟㐺⏝ࡋࡓ㸬⢏ᗘศᕸࢆయ✚✚ศࡍࡿࡇ࡜࡛㸪ຍ⇕✚ศ್࡟ᑐࡍࡿṧᏑ 7L& 㔞ࢆ⟬ฟࡋࡓᣑᩓಀᩘ ' ࡀ Pѿ V ࡢ᫬ (6/ ᐇ㦂⤖ᯝ࡜ᴫࡡ୍⮴ࡋࡓ㸬ᾮ┦㸦㸧㸪ᅛ┦㸦㸧㸪⢏⏺୰㸦㸧ࡢᣑᩓಀᩘࡢᖹᆒࡢ࣮࢜ࢲ࣮࡛࠶ࡿࡇ࡜࠿ࡽ㸪」ᩘࡢᣑᩓᙧែ࡟ࡼࡾ

− 201 −

7L& ࡢ⁐ゎࡀ㉳ࡇࡗ࡚࠸ࡿ࡜ࢃ࠿ࡿ㸬


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ᅗ  ⁐ゎࣔࢹࣝ࡟ࡼࡿຍ⇕✚ศ್࡜ṧᏑ 7L&㔞ࡢ㛵ಀࣉࣟࢵࢺ
⬥ࡢᩘᏐࡣ⤖ᬗ⢏ᩘࢆ㸪᭤⥺⬥ࡢᩘᏐࡣᣑᩓಀᩘ 'PV ࢆ⾲ࡍ

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㸳㸬⤖ゝ

௨ୖࡼࡾ㸪7L&PDVVῧຍヨᩱ࡟࡚㸪(6/ ᐇ㦂࡟࠾ࡅࡿຍ⇕✚ศ್ࢆ.ѿ V ᮍ‶࡟ᢚไࡍࡿ࡜㸪
7L& ࡀṧᏑࡋ⤖ᬗ⢏ࡀᚤ⣽໬ࡍࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓ㸬ᣑᩓ⌮ㄽ࠿ࡽ⟬ฟࡉࢀࡓ 7L& ࡢ⁐ゎ㏿ᗘᘧࢆ㐺⏝ࡍࡿࡇ࡜࡛㸪ຍ⇕✚ศ್࡟ᑐࡍࡿṧᏑ 7L& 㔞ࢆぢ✚ࡶࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿ࡜࠸࠼ࡿ㸬ㅰ㎡ ᮏ◊✲ࡣ㸪ᅜ㝿Ᏹᐂࢫࢸ࣮ࢩࣙࣥ㸦,66㸧ࠕࡁࡰ࠺ࠖ᪥ᮏᐇ㦂Ჷ฼⏝ࢸ࣮࣐͆+HWHUR'͇ࡢ୍⎔࡜ࡋ࡚ᐇ᪋ࡋࡲࡋࡓ㸪+HWHUR' 㛵ಀ⪅ྛ఩࡟ឤㅰ⏦ࡋୖࡆࡲࡍ㸬ཧ⪃ᩥ⊩ <:DWDQDEHHWDO--DSDQ/DVHU3URFHVVLQJ6RFLHW\  
 6<DPDPRWRHWDO0HWDOO0DWHU7UDQV$$  
 1'DWHHWDO0HWDOO0DWHU7UDQV$$   <0DEXFKLHWDO,QW-0LFURJUDYLW\6FL$SSO   <0DEXFKLHWDO-$60$&$EVW  3 0-:KHODQ-0DWHU6FL   4=XRHWDO-0DWHU6FL  
㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⤌⧊ホ౯Ꮫศ㔝㸧− 202 −

⮬ື㌴⏝㗰ᯈࢆẕᮦ࡜ࡍࡿᦶ᧿᧠ᢾⅬ᥋ྜ⥅ᡭࡢኚືⲴ㔜ୗ࡛ࡢ⑂ປᙉᗘホ౯ᗈᓥ኱Ꮫ኱Ꮫ㝔 ඛ㐍⌮ᕤ⣔⛉Ꮫ◊✲⛉ ᚋᮇ༤ኈㄢ⛬ 2 ᖺᯘ⨾భ

1. ◊✲⫼ᬒ࣭┠ⓗᮏ◊✲࡛ࡣ㸪ᦶ᧿᧠ᢾⅬ᥋ྜ FSSW ࡟ὀ┠ࡋ㸪ࡑࡢ⑂ປ≉ᛶ࡞ࡽࡧ࡟⑂ປ◚ቯ࣓࢝ࢽࢬ࣒ࡢ᳨ウࢆ⾜ࡗࡓ㸬≉࡟ᐇᶵࡢ⮬ື㌴࡟ࡣ᫬ࠎ้ࠎ࡜ኚ໬ࡍࡿኚືⲴ㔜ࡀ㈇Ⲵࡉࢀࡿࡓࡵ㸪ኚືⲴ㔜ୗ࡛ࡢ⑂ປ≉ᛶࢆྲྀᚓࡍࡿࡇ࡜ࡣ㔜せ࡛࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪⮬ື㌴⏝㗰ᯈࢆẕᮦ࡜ࡍࡿ FSSW ⥅ᡭࢆᑐ㇟࡜ࡋ㸪⡆᫆ⓗ࡞ኚືἼᙧࣔ
ࢹࣝ࡜ࡋ࡚஧ẁ⧞㏉ࡋኚືⲴ㔜⑂ປヨ㦂ࢆᐇ᪋ࡋ㸪ኚືⲴ㔜ୗ࡟࠾ࡅࡿᦶ᧿᧠ᢾⅬ᥋ྜ⥅ᡭࡢ⑂ປ≉ᛶ࡟㛵ࡍࡿᇶ♏ⓗ࡞᳨ウࢆ⾜ࡗࡓ㸬ࡲࡓ㸪Ᏻ඲ᛶ࠿ࡘ⤒῭ᛶࢆ⪃៖ࡋࡓタィࢆᐇ⌧ࡉࡏࡿࡓࡵ㸪ኚືⲴ㔜࡟ᑐࡍࡿᏳ඲
ഃ࠿ࡘ㧗⢭ᗘ࡞⑂ປᦆയホ౯ᡭἲࡢ☜❧ࢆ┠ᣦࡋࡓ㸬
2. ౪ヨᮦ࠾ࡼࡧᐇ㦂᪉ἲẕᮦ࡟ࡣ୍⯡ⓗ࡞⮬ື㌴㌴య࡟ᗈࡃ㐺⏝ࡉࢀ࡚࠸ࡿ 590MPa ⣭෭㛫ᅽᘏ㧗ᙇຊ㗰ᯈ SPFC590㸦ᯈཌ㸸t=0.8mm㸧
ࢆ౑⏝ࡋࡓ㸬సᡂࡋࡓヨ㦂∦ࡢእほᅗࢆᅗ㸯࡟㏻ࡾ࡛࠶ࡿ㸬ᮏヨ㦂࡛⏝࠸ࡓࢶ࣮ࣝࡣࢱࣥࢢࢫࢸ࣮ࣥ࢝ࣂ࢖ࢻ
〇㸪ࢩࣙࣝࢲ㒊ᚄ 12mm㸪ࣉ࣮ࣟࣈ┤ᚄ 4mm㸪ࣉ࣮ࣟࣈ㒊ࡢ῝ࡉ 1.2mm ࡛࠶ࡿ㸬ኚື⑂ປヨ㦂ࡣ㸪ᓥὠ〇సᡤ〇㟁ẼἜᅽᘧࢧ࣮࣎ࣃࣝࢧࢆ⏝࠸㸪ᅗ 2 ࡢᶍᘧᅗ࡟♧ࡍ஧ẁ⧞㏉ࡋኚືⲴ㔜࡜ࡋ࡚㸪㧗ヨ㦂ຊ Pa,,H ࢆ nH ᅇ㈇Ⲵࡋࡓᚋ㸪పヨ㦂ຊ Pa,L ࢆ nL ᅇ㈇Ⲵࡍࡿ㸬ࡇࢀࢆ㸯ࣈࣟࢵࢡ࡜ࡋ࡚㸪ヨ㦂∦ࡀ◚᩿ࡍࡿࡲ࡛⧞ࡾ㏉ࡋ㸪஧ẁኚືⲴ㔜ୗ࡟ᑐࡍࡿ⑂ປᙉᗘホ౯ࢆᐇ᪋ࡋࡓ㸬
50

Loading
FSSW region direction

Chucking area

0.8

50

30

25
14

150

Applied force [kN]Fig.1 Shape and dimensions of welding specimen on Tensile share type.
Cosine waveǻPH
=2Pa,H0

Ramp waveǻPL=2Pa,LTime (s)Fig.2 Schematic illustration of two-step loading wave.

− 203 −

3. ヨ㦂⤖ᯝ࠾ࡼࡧ⪃ᐹ
⾲ 1 ࡟ྛヨ㦂᮲௳࡟ᑐࡍࡿ஧ẁኚື⑂ປヨ㦂⤖ᯝࢆ♧ࡍ㸬ྛヨ㦂ຊ᣺ᖜࡢ 1 ࣈࣟࢵࢡ࠶ࡓࡾࡢ⧞㏉ࡋᩘ݊௜ ࡣ㸪ࡑࢀࡒࢀࡢヨ㦂ຊ᣺ᖜ࡟࠾ࡅࡿ⣼✚ᦆയࡢẚ(= ‫ܦ‬ு Τ‫ܦ‬௅ )ࡀ 1 ⛬ᗘ࡜࡞ࡿࡼ࠺࡟タᐃࡋ࡚࠸ࡿ㸬࡞࠾㸪‫ܦ‬ு , ‫ܦ‬௅ ࡣ㧗ヨ㦂ຊ᣺ᖜ࠾ࡼࡧపヨ㦂ຊ᣺ᖜࢆ㈇Ⲵࡋࡓ㝿ࡢ⣼✚ᦆയ್ࢆࡑࢀࡒࢀ⾲ࡋ࡚࠾ࡾ㸪σ ݊௜ ࡣ⥅ᡭࡀ◚᩿࡟⮳ࡿࡲ࡛࡟せࡋࡓ⧞㏉ࡋᩘࡢ⥲࿴ࢆ♧ࡍ㸬 ஧ẁኚື⑂ປヨ㦂⤖ᯝࡼࡾ㸪᭷㝈ᑑ࿨ᇦྠኈࡢヨ㦂ຊ᣺ᖜࡢ⤌ࡳྜࢃࡏ࡛ࡣࡍ࡭࡚ࡢ᮲௳࡟࡚⣼✚ᦆയ್ Dࡣ㸪࣐࢖ࢼ࣮๎࡟࡚◚᩿࡜ᐃ⩏ࡉࢀࡿ 1 ࢆࢃࡎ࠿࡟ୖᅇࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸬ࡑࡢࡓࡵ⑂ປᦆയࢆ㐺ษ࡟ホ౯ࡍࡿࡇ࡜ࡀ࡛ࡁࡿ࡜♧၀ࡉࢀࡓ㸬ࡲࡓ㸪᭷㝈ᑑ࿨ᇦࡢヨ㦂ຊ᣺ᖜ࡜⑂ປ㝈ᗘ௨ୗࡢヨ㦂ຊ᣺ᖜࡢ⤌ࡳྜࢃࡏ࡛
ࡣ࣐࢖ࢼ࣮๎࡛ࡣ‫ܦ‬ெ ࡣ 1 ⛬ᗘࢆ♧ࡋ࡚࠸ࡿࡀ㸪ಟṇ࣐࢖ࢼ࣮๎࡛ࡣ‫ܦ‬ெெ ࡣ 2 ⛬ᗘࢆ♧ࡋ࡚࠸ࡿࡓࡵ㐣ᗘ࡟Ᏻ඲ഃ࡛ホ౯ࡋ࡚࠸ࡿ࡜࠸࠼ࡿ㸬ࡘࡲࡾ⑂ປ㝈ᗘ௨ୗࡢ㐣ᑠᛂຊࡀ⑂ປᦆയ࡟ཬࡰࡍᙳ㡪ࡣᴟࡵ࡚ᑠࡉ࠸ࡇ࡜ࡀ
♧၀ࡉࢀࡓ㸬 ヨ㦂ຊ᣺ᖜࡢኚື࿘ᮇࡀ࠿࡞ࡾ㛗࠸ሙྜ㸪㐣ᑠᛂຊ࡛ࡁ⿣㐍ᒎ㏿ᗘࡀ㐜ᘏࡉࢀᑑ࿨ᘏ㛗ຠᯝࢆࡶࡓࡽࡍࡇ࡜
ࡀ࠶ࡿ㸬ࡑࡢࡓࡵ No.9~No.11 ࡢヨ㦂᮲௳࡛ࡣኚື࿘ᮇࢆῶᑡࡉࡏ㸪⑂ປᦆയ࡟ᙳ㡪ࡍࡿ࠿ࢆ☜ㄆࡋࡓ㸬⤖ᯝ࡜ࡋ࡚㸪No.9~No.11 ࡢヨ㦂࡟ẚ࡭࡚ No.6~No.8 ࡢヨ㦂ࡣ㐣ᑠᛂຊࡢᙳ㡪ࢆཷࡅ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬ࡇࢀࡽࡼࡾ㸪ヨ㦂ຊ᣺ᖜࡢኚື࿘ᮇࡢ㛗ᮇ໬ࡀኚືⲴ㔜ࡢ㈇Ⲵ࡟ࡼࡿ⥅ᡭࡢ㧗ᑑ࿨໬࡟ᙳ㡪ࡋ࡚࠾ࡾ㸪ಟṇ࣐࢖ࢼ࣮๎࡟࡚Ᏻ඲ഃࡢᦆയホ౯ࢆ୚࠼ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ㸬ࡇࢀࡲ࡛ࡢᐇ㦂ⓗ᳨ウ࠿ࡽ㸪ヨ㦂ຊ᣺ᖜࡢኚື࿘ᮇࡢ㛗ᮇ໬࡟ࡼࡾ㸪஧ẁኚືⲴ㔜ୗ࡟࠾ࡅࡿ⑂ປᦆയホ౯ࡀ㸪ಟṇ࣐࢖ࢼ࣮๎࡟࡚Ᏻ඲ഃホ౯࡟࡞ࡿࡇ࡜ࡀศ࠿ࡗࡓࡀ㸪ࡉࡽ࡟Ᏻ඲ᛶ࠿ࡘ⤒῭ᛶࢆ⪃៖ࡋࡓタィࢆᐇ⌧ࡉࡏࡿࡓࡵ㸪᭱㐺࡞ホ౯ᡭἲࡢ᳨ウࢆ⾜࠺ࡓࡵ Haibach ࡢ᪉ἲࢆ㐺⏝ࡋࡓ㸬ྠᡭἲࡣ㸪⑂ປ㝈ᗘ௨ୗࡢ P-N ᭤⥺ࡢഴࡁ m ࢆ(2m-1)࡟ῶࡌ࡚㸪⣼✚ᦆയ್ࢆồࡵࡿᡭἲ࡛࠶ࡾ㸪Ḣᕞࡢᇶ‽࡟᥇⏝ࡉࢀ࡚࠸ࡿᡭἲ࡛࠶ࡿ㸬
Haibach ࡢ᪉ἲ࡛ಟṇࡋࡓ⤖ᯝࡣ⾲ 3 ࡟♧ࡋ࡚࠸ࡿ㸬඲࡚ࡢヨ㦂⤖ᯝ࡛⣼✚ᦆയ್ D ࡀಟṇ࣐࢖ࢼ࣮๎࡛ホ౯ࡋࡓࡶࡢࡼࡾࡶ 1 ࡟㏆࡙ࡃ⤖ᯝ࡜࡞ࡗ࡚࠸ࡿ㸬ࡋࡓࡀࡗ࡚㸪ᮏ◊✲࡛ᑐ㇟࡜ࡋࡓ⥅ᡭ࡟ᑐࡍࡿኚືⲴ㔜ୗࡢ⑂ປᦆയホ౯࡟࠾࠸࡚㸪㐣ᑠᛂຊࡢᙳ㡪ࢆ Haibach ࡢ᪉ἲࢆ⏝࠸࡚ಟṇࡍࡿࡇ࡜࡛㸪Ᏻ඲ഃ࠿ࡘ㧗⢭ᗘ࡟ኚືⲴ
㔜ࡢ⑂ປᦆയホ౯ࢆᐇ⌧ࡍࡿࡇ࡜ࡀ࡛ࡁࡿࡇ࡜ࡀㄆࡵࡽࢀࡓ㸬

Table 1 Results of cumulative fatigue damage of repeated two-step loading fatigue testNo.

݊‫ ܪ‬Τ݊‫ܮ‬

ȭ݊‫ܪ‬

ȭ݊‫ܮ‬

[kN]

ܲܽ ,‫ܮ‬[kN][cycles][cycles]ܲܽ,‫ܪ‬

‫ܯܦ‬

‫ܯܯܦ‬

Haibach‫ ܪܦ‬Τ‫ܮܦ‬

method1

1000/4450

1.5

1.0

9.61E+04

4.27E+05

1.022

-

-

0.998

2

1000/6000

1.5

0.9

1.32E+05

7.92E+05

1.403

-

-

1.002

3

1000/8100

1.5

0.8

1.04E+05

8.42E+05

1.109

-

-

0.996

4

1000/10900

1.5

0.7

1.07E+05

1.16E+06

1.130

-

-

0.996

5

1000/20000

1.5

0.5

1.66E+05

3.32E+06

0.883

1.713

1.535

1.064

6

1000/27000

1.5

0.4

1.85E+05

5.00E+06

0.984

1.983

1.524

0.985

7

1000/36000

1.5

0.3

1.75E+05

6.30E+06

0.931

1.865

1.301

0.997

8

1000/48500

1.5

0.2

2.31E+05

1.12E+07

1.229

2.460

1.596

0.998

9

500/10001.5

0.5

1.22E+05

2.44E+06

0.649

1.307

1.128

0.987

10

500/13500

1.5

0.4

1.63E+05

4.40E+06

0.867

1.747

1.343

0.985

11

500/18000

1.5

0.3

1.77E+05

6.35E+06

0.939

1.881

1.317

0.997



㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⤌⧊ホ౯Ꮫศ㔝㸧− 204 −

$ ࡜ $ ࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ࡢຍ⇕ⓎἻ┤ᚋࡢ࣮࣮ࣟࣛᡂᙧ࡟ࡼࡿ᥋ྜ
⩌㤿኱Ꮫ ኱Ꮫ㝔⌮ᕤᏛᗓ ▱⬟ᶵᲔ๰〇㒊㛛
༙㇂⚞ᙪ

㸬┠ⓗ
࣏࣮ࣛࢫ࢔࣑ࣝࢽ࣒࢘ $O ࡣ㸪㍍㔞ᛶࡸඃࢀࡓ⾪ᧁ྾཰ᛶ㸪㐽㡢ᛶࢆᣢࡗ࡚࠸ࡿࠋࡑࡢస〇᪉ἲࡣᵝࠎ࠶ࡿࡀ㸪ᮏ◊✲࡟࠾ࡅࡿ࣏࣮ࣛࢫ $O ࡣࣉ࣮ࣜ࢝ࢧἲࢆ⏝࠸࡚స〇ࡋࡓࠋࣉ࣮ࣜ࢝ࢧἲࡣ㸪࠶ࡽ࠿ࡌࡵⓎἻ๣ࡀΰྜࡋࡓ $O ᯈᮦࢆ௵ពࡢᙧ≧࡟ຍᕤࡋࡓࣉ࣮ࣜ࢝ࢧࢆస〇ࡋࡓᚋ㸪ࡇࢀࢆຍ⇕࡟ࡼࡾⓎἻࡉࡏ࡚࣏࣮ࣛࢫ $O ࢆస〇ࡍࡿ᪉ἲ࡛࠶ࡿࠋ࣏࣮ࣛࢫ $O ࡟࠾ࡅࡿ⾪ᧁ྾཰ᛶࡣ㸪ྜ㔠ࡢ✀㢮ࡸෆ㒊ࡢẼᏍᙧែ࡟౫Ꮡࡍࡿࠋ」ᩘ✀㢮ࡢ࣏࣮ࣛࢫ $O ࢆ㐃⥆ⓗ࡟᥋ྜࡋࡓഴᩳᶵ⬟࣏࣮ࣛࢫ $O ࡣ㸪ᅽ⦰ࡢ㝿࡟ࡣኚᙧࡀపᙉᗘ㒊࠿ࡽ㉳ࡇࡾ㸪㧗ᙉᗘ㒊࡟㐍ᒎࡋ࡚࠸ࡃࠋࡑࡢࡓࡵ㸪ࡇࢀࡲ࡛௨ୖ࡟ඃࢀࡓ⾪ᧁ྾཰ᛶࢆᚓࡿࡇ࡜ࡀ࡛ࡁࡿࠋࡇ
ࢀࡲ࡛ࣉ࣮ࣜ࢝ࢧࡢ✺ྜࡏ᥋ྜᚋ࡟ⓎἻࡉࡏࡿࡇ࡜࡛స〇ࡉࢀ࡚࠸ࡓࠋࡋ࠿ࡋసᴗ㔞ࡀከࡃ㸪ࡼࡾᐜ᫆࡟స〇ࡍࡿࡇ࡜ࡀᶍ⣴ࡉࢀ࡚࠸ࡿࠋࡑࡇ࡛ᮏ◊✲࡟࠾࠸࡚ࡣഴᩳᶵ⬟࣏࣮ࣛࢫ $O ࡢస〇ࢆ┠ⓗ࡜ࡋ࡚㸪ⓎἻ┤ᚋࡢ࣮࣮ࣟࣛᡂᙧ࡟ࡼࡿ᥋ྜࢆ⾜ࡗࡓࠋ᥋ྜࡀ༑ศ࡟ࡉࢀ࡚࠸ࡿ࠿ࢆᅄⅬ᭤ࡆヨ㦂ࢆ⏝࠸᳨࡚ドࡋࡓࠋ 㸬◊✲᪉ἲ)LJ ࡣ࣏࣮ࣛࢫ $O ࢆࣁࣟࢤࣥࣛࣥࣉ࡛ຍ⇕ⓎἻࡉࡏ㸪࣮࣮ࣟࣛ࡟ࡼ
ࡿᡂᙧ࠾ࡼࡧ᥋ྜࢆࡍࡿ㝿ࡢᴫせᅗ࡛࠶ࡿࠋ)LJ D ࡟♧ࡍࡼ࠺࡟ࣁࢽ
࣒࢝ᵓ㐀ࡢࢭ࣑ࣛࢵࢡࡢୖ࡟㕲ࡢ࢞࢖ࢻ࣮ࣞࣝ࡜㸪$ ࠾ࡼࡧ $ࡢ PPPPཌࡉ PP ࡢࣉ࣮ࣜ࢝ࢧࢆタ⨨ࡋࡓࠋࣉ࣮ࣜ࢝ࢧ
ࡣᦶ᧿᧠ᢾ᥋ྜ࡟ࡼࡾస〇ࡋࡓࠋ)LJ E ࡣ )LJ D ࢆྑ࠿ࡽぢࡓᅗ࡛࠶ࡿࡀ㸪ࡇࢀ࡟♧ࡍࡼ࠺࡟࢞࢖ࢻ࣮ࣞࣝࡢ㧗ࡉ K ࢆ PP ࡛ᅛᐃࡋ㸪࢞࢖ࢻ࣮ࣞࣝࡢᖜ Z ࢆ PP㸪PP㸪PP ࡢ  ✀㢮࡛ᐇ᪋ࡋࡓࠋࣉ
࣮ࣜ࢝ࢧ ࡢୗ㒊࡟┤ᚄ PP㸪῝ࡉ⣙ PP ࡢ✰ࢆ࠶ࡅ࡚⇕㟁ᑐࢆタ⨨ࡋ㸪 ᗘィ ࢆ⾜࠸࡞ࡀࡽᐇ㦂ࢆᐇ᪋ࡋࡓࠋ$ ࡀ Υ࡟࡞ࡿࡲ࡛ຍ⇕ࡋࡓᚋ࡟ )LJ F ࡟♧ࡍࡼ࠺࡟⛣ືࡉࡏࡓࠋຍ⇕ࢆ೵Ṇࡋࡓ࠶࡜࡛ࡶవ⇕࡟ࡼࡾ ᗘࡀୖ᪼ࡍࡿࠋࡇࡢవ⇕ࡀ෭ࡵ࡚ ᗘࡀୗࡀࡾ㸪$ ࡀ Υ࡟࡞ࡗࡓ࡜ࡁ࡟ࢫࢸࣥࣞࢫ〇ࡢ࣮࣮ࣟࣛࢆ $ ഃ࠿ࡽᡭື࡛ ᚟ࡉࡏᡂᙧࢆ⾜ࡗࡓࠋ$ ࡢᾮ┦⥺ ᗘ࡛࠶ࡿ Υࡲ࡛ ᗘࡀୗࡀࡗࡓࡽ࣮࣮ࣟࣛ࡟ࡼࡿᡂᙧࢆ⤊஢ࡋࡓࠋ
ḟ࡟ᅄⅬ᭤ࡆヨ㦂ࢆ⾜ࡗࡓࠋࡇࡢ㝿㸪ᚓࡽࢀࡓヨᩱࡢ᥋ྜ⏺㠃࡛◚᩿ࡍࡿࡼ࠺ 8 Ꮠᆺ㗰ᮦࢆᵓ㐀⏝᥋╔๣࡛ᅛᐃࡋࡓࠋ⣲ᮦࡣ
Z PP ࡛ࡣ 66 㗰ᮦ㸪Z PP㸪PP ࡛ࡣ 686 㗰ᮦ࡛࠶ࡿࠋࡲࡓ࣮࣮ࣟࣛᡂᙧࡢ㝿࡟ୗഃࡔࡗࡓ㠃࠿ࡽ◚᩿ࡍࡿࡼ࠺
࡟ᅄⅬ᭤ࡆヨ㦂ࢆᐇ᪋ࡋࡓࠋ
㸬ᐇ㦂⤖ᯝ
)LJ ࠿ࡽ )LJ ࡣᐇ㦂࡟ࡼࡾᚓࡽࢀࡓࡑࢀࡒࢀ Z PP㸪PP㸪PP ࡛ࡢヨᩱ࡛࠶ࡿࠋ⏬ീࡣྑഃࡀ $㸪ᕥഃࡀ $࡛࠶ࡿࠋࡲࡓ ; ⥺ &7 ⏬ീࡣ᥋ྜ㒊௜㏆ࢆ᧜ᙳࡋࡓࡶࡢ࡛࠶ࡿࠋZ PP ࡛ࡣ )LJ D ࠿ࡽࢃ࠿ࡿࡼ࠺࡟ $ ࡢࣉ࣮ࣜ࢝ࢧࡢ
ᕥ࡟ᢲࡋฟࡉࢀࡓ㒊ศࡀከࡃᏑᅾࡋ࡚࠸ࡿࠋ᥋ྜ⏺㠃ࡢୗ㒊࡟ࡣⱝᖸ㝽㛫ࡢࡼ࠺࡞ࡶࡢࡀほᐹ࡛ࡁࡓࠋࡲࡓ࢞࢖ࢻ࣮ࣞࣝᖜࡀ⊃࠸ࡓࡵ࡟㸪࣮࣮ࣟࣛࢆᐇ᪋ࡋࡓୖ㠃࡟ࡣࡳฟࡓ $O ࡀከࡃᏑᅾࡋ࡚࠸ࡓࠋ)LJ E ࡣヨᩱࡢ᥋ྜ㒊௜㏆ࢆ᧜ᙳࡋࡓ ; ⥺ &7 ⏬ീ࡛࠶ࡿࡀ㸪ྑഃ࡟࠶ࡿ $ ࡀ $ ࡟そ࠸࠿ࡪࡉࡿࡼ࠺࡟ὶືࡋ࡚࠸ࡿᵝᏊࡀほᐹ࡛ࡁࡿࠋࡲࡓ㸪ୗ㒊࡟ࡣࡶ࡜ࡢࣉ࣮ࣜ࢝ࢧࡢ
ቃ⏺ࡀࡣࡗࡁࡾ࡜ほᐹ࡛ࡁࡿࠋ୍᪉㸪ୖ㒊ࡸ୰ኸ㒊௜㏆ࡣ᫂☜࡞ቃ⏺ࡀ☜ㄆ࡛ࡁࡎ㸪㔠ᒓⓗ࡞᥋ྜࡀ࡞ࡉࢀ࡚࠸ࡿࡼ࠺࡟ࡳ࠼ࡿࠋ

− 205 −

Z  PP ࡛ࡣ )LJ D ࡟♧ࡍࡼ࠺࡟᥋ྜ⏺㠃࡛ࡢ㝽㛫ࡣࡼࡾ᫂░࡟ほᐹ࡛ࡁࡿࠋࡲࡓ )LJ E ࠿ࡽࢃ࠿ࡿࡼ࠺࡟㸪᥋ྜ⏺
㠃ࡢ୰ኸ௜㏆ࡣቃ⏺ࡀ᫂☜࡟ࡣぢࡽࢀ࡞࠸ࡀ㸪ࡑࢀ௨እࡢୖ
㒊ࡸୗ㒊࡛ࡣቃ⏺ࡀほᐹ࡛ࡁࡿࠋZ  PP ࡛ࡣ )LJ D ࡟࠶ࡿࡼ࠺࡟᥋ྜ⏺㠃ࡢ㝽㛫ࡀ኱ࡁࡃほᐹ࡛ࡁࡿࠋ)LJ E ࢆぢࡿ࡜᥋ྜ⏺㠃ࡢ඲య࡟࠾࠸࡚㓟໬⓶⭷ࡀ࠶ࡾ㸪ቃ⏺ࡀࡣࡗࡁࡾ
࡜☜ㄆ࡛ࡁࡿࠋ
)LJ ࡟ᅄⅬ᭤ࡆヨ㦂ᚋࡢ◚᩿㠃ࢆ♧ࡍࠋ)LJ D ࡣ Z 
PP ࡢヨᩱ࡛࠶ࡿࡀ㸪
ヨᩱࡢୗ㒊࡛ࡣ㓟໬⓶⭷ࡀぢࡽࢀࡓࡀ㸪ୖ㒊࡛ࡣ࣏࣮ࣛࢫ $O ࡢẼᏍࡀほᐹࡉࢀࡓࠋZ PP ࡢヨᩱࢆ )LJ E ࡟♧ࡍࠋ୰ኸ௜㏆࡛ࡣ࣏࣮ࣛࢫ $O ࡢẼᏍࡀほᐹ࡛ࡁࡿࡀ㸪ࡑࡢ௚ࡢ㒊ศ࡛ࡣ㓟໬⓶⭷ࡀṧࡗ࡚࠸ࡿࠋࡘࡲࡾ㸪኱༙ࡢ㒊ศ࡛ࡣ㓟໬⓶⭷ࢆ◚ࡿࡇ࡜࡞ࡃᅽ╔ࡋࡓ≧ែ࡛࠶ࡗࡓ࡜᥎ ࡉࢀࡿࠋ)LJ F ࡣ Z  PP ࡢヨᩱ࡛࠶ࡿࠋ◚᩿㠃ࡣࡍ࡭࡚㓟໬⓶⭷࡟そࢃࢀ࡚࠸ࡿࠋ
ᅄⅬ᭤ࡆヨ㦂࡟࠾࠸࡚ࡣ࣮࣮ࣟࣛ࡟ࡼࡿᡂᙧࢆ⾜ࡗࡓ㠃ࢆୖ㒊࡜ࡋ࡚࠸ࡿࠋࡘࡲࡾୗ㒊࠿ࡽ◚᩿ࡍࡿࡼ࠺࡟ヨ㦂ࡋ࡚࠸ࡿࡓࡵ㸪ࡶ࡜ࡢ  ࡘࡢࣉ࣮ࣜ࢝ࢧࡢ㛫࠿ࡽ◚᩿ࡀⓎ⏕ࡍࡿࠋࡑࡢࡓࡵ㸪᥋ྜ⏺㠃࡟࠾࠸࡚㓟໬⓶⭷ࡀṧࡗ࡚࠸ࢀࡤ◚᩿㠃࡟࠾࠸࡚ほᐹࡉࢀࡿࠋ
Z PP ࡢヨᩱࡢୖ㒊࡛ࡣ㓟໬⓶⭷ࡀほᐹࡉࢀ࡞࠿ࡗࡓࠋୖ㒊࡟࠾࠸࡚ࡣ࣮࣮ࣟࣛᡂᙧ࡟ࡼࡗ࡚㓟໬⓶⭷ࢆ◚ࡗ࡚㔠ᒓⓗ࡟᥋ྜࡀ࡞ࡉࢀ࡚࠸ࡓ࡜⪃࠼ࡽࢀࡿࠋ
ྠᵝ࡟ Z  PP ࡢヨᩱࡢ୰ኸ௜㏆࡟࠾࠸࡚ࡶⱝᖸ࡛ࡣ࠶ࡿ
ࡀ㔠ᒓⓗ࡟᥋ྜࡀ࡞ࡉࢀ࡚࠸ࡓࠋ୍᪉㸪Z PP ࡛ࡣ඲㠃࡟㓟໬⓶⭷ࡀほᐹࡉࢀࡓࠋࡍ࡞ࢃࡕ㸪ࡇࡢヨᩱ࡟࠾࠸࡚ࡣ㔠ᒓⓗ࡞᥋ྜࡀ࡞ࡉࢀ࡚࠾ࡽࡎ㸪ᶵᲔⓗ࡞ᅽ╔ࡢࡳ࡛࠶ࡗࡓ࡜࠸
࠼ࡿࠋࡇࡢཎᅉ࡜ࡋ࡚ࡣࣉ࣮ࣜ࢝ࢧࡢ኱ࡁࡉ࡟ᑐࡋ࡚㸪࢞࢖ࢻ࣮ࣞࣝᖜࡀᗈࡍࡂࡓࡓࡵ࡟㸪 $ ࠿ࡽ $ ࡬ࡢᮦᩱὶືࡀᑡ࡞ࡃ࡞ࡾ㸪㓟໬⓶⭷ࢆ◚ࡿ  ࡯࡝ࡢᙳ㡪ࢆཬࡰࡉ࡞
࠿ࡗࡓࡇ࡜ࡀ⪃࠼ࡽࢀ㸪㔠ᒓⓗ࡞᥋ྜ࡟ࡣ㐺ษ࡞࢞࢖ࢻ࣮ࣞ
ࣝᖜࡀᏑᅾࡍࡿࡇ࡜ࡀࢃ࠿ࡿࠋ
 ⤖ゝᮏᐇ㦂࡛ࡣ $ ࡜ $ ࡢ࣏࣮ࣛࢫ $O ࡟ᑐࡋ࡚ຍ⇕ⓎἻ┤ᚋ࡟ $ ഃ࠿ࡽ࣮࣮ࣟࣛ࡟ࡼࡿᡂᙧ࠾ࡼࡧ᥋ྜࢆ⾜ࡗࡓࠋ࢞࢖ࢻ࣮ࣞࣝࡢᖜࢆ㐺ษ࡟㑅ᢥࡍࡿࡇ࡜࡛㸪㔠ᒓⓗ࡞᥋ྜࢆᐇ⌧࡛ࡁࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋㅰ㎡ᮏ◊✲ࡢ୍㒊ࡣ㸪ᅜ❧኱Ꮫἲே኱㜰኱Ꮫ᥋ྜ⛉Ꮫ◊✲ᡤඹྠ◊✲฼⏝ࡢࡶ࡜㸪㛛஭ᾈኴ෸ᩍᤵࡢࡈᣦᑟ࡟ࡼࡾ⾜ࢃࢀࡲࡋࡓ㸬ࡇࡇ࡟グࡋ࡚ឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⤌⧊ホ౯Ꮫศ㔝㸧− 206 −

IFF ⣔䝝䜲䜶䞁䝖䝻䝢䞊ྜ㔠䛾จᅛ⤌⧊䛻ཬ䜌䛩 0R 䛾ᙳ㡪㻌 㛵す኱Ꮫ㻌 ໬Ꮫ⏕࿨ᕤᏛ㒊໬Ꮫ䞉≀㉁ᕤᏛ⛉୸ᒣ㻌 ᚭ
䠍䠊◊✲⫼ᬒ䛸┠ⓗ㻌㻌 ௦⾲ⓗ䛺 IFF ⣔㧗࢚ࣥࢺࣟࣆ࣮ྜ㔠 +LJKHQWURS\DOOR\V+($V ࡛࠶ࡿ &U0Q)H&R1L ྜ㔠ࡣᾮయ❅⣲ ᗘ࡟࠾࠸࡚㧗ᙉᗘ࣭㧗ᘏᛶࢆ♧ࡍ  ࡇ࡜ࡀὀ┠ࡉࢀ࡚࠸ࡿࡀ㝆అẚࡣᚲࡎࡋࡶ኱ࡁࡃ࡞࠸ࡇ࡜ࡀㄢ㢟࡜ࡋ࡚ᣲࡆࡽࢀࡿࠋࡇࢀ࡟ᑐࡋ
࡚ /LX ࡽ  ࡣ &R&U)H1L0R ⣔ྜ㔠ࡢᶵᲔⓗᛶ㉁ࢆㄪ࡭ࡓ⤖ᯝࠊ&R&U)H1L0R ྜ㔠࡟࠾࠸࡚ࠊ⬤ᛶࡀᠱᛕࡉࢀࡿ ı ┦࡜ ȝ ┦ࡢᯒฟࡀㄆࡵࡽࢀࡓࡶࡢࡢᘬᙇᙉࡉࡣ㣕㌍ⓗ࡟ᙉ໬ࡉࢀࠊ῝้࡞⬤໬ࡣ⏕ࡌ࡞࠿ࡗࡓࡇ࡜ࢆሗ࿌ࡋ࡚࠸ࡿࠋⴭ⪅ࡽࡣ DW0R ࢆῧຍࡋࡓ IFF ⣔ࣁ࢖࢚ࣥࢺࣟࣆ࣮ྜ㔠㗪㐀ᮦࢆస〇ࡋࠊᐊ ཬࡧᾮయ❅⣲ ᗘ࡟࠾࠸࡚㧗㠌ᛶࢆ♧ࡍࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓ  ࠋ୍᪉࡛ࡇࡢ㗪㐀ᮦࡢจᅛ⤌⧊࡛ࡣࢹࣥࢻࣛ࢖ࢺ㛫㝽࡛ 0R ࡢ⃰໬ࡀㄆࡵࡽࢀ࠾ࡾࠊ0R 㔞ࡀቑຍࡍࡿ࡜᭱⤊จᅛ㒊࡟Ȫ┦ࡸȣ┦⏕ᡂࡍࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ  ࠋᮏ◊✲࡛ࡣࠊ&U)H&R1L0R ྜ㔠ࡢจᅛ⤌⧊ࠊඖ⣲ศᕸ࠾ࡼࡧ◳ࡉࡢ㛵ಀࢆㄪᰝࡋࡓ⤖ᯝࢆሗ࿌ࡍࡿࠋ
㻌䠎䠊ᐇ㦂᪉ἲ㻌&U &R 1L 䛚䜘䜃 )H 䛾⣧㔠ᒓཬ䜃䝣䜵䝻䝰䝸䝤䝕䞁䜢ẕྜ㔠䛸䛧䛶䚸&U)H&R1L0R ྜ㔠䛾㗪ᨺ䛧ᮦ䜢స〇䛧䛯䚹0R ௨እ䛾ඖ⣲䛾㓄ྜ㔞䛿➼ཎᏊ⤌ᡂ䛸䛧䚸0R 㓄ྜ㔞䛿 DW䛸䛧䛯䚹ヨᩱ䛾⁐〇䛻䛿㧗࿘Ἴㄏᑟ⅔䜢⏝䛔䛶䃥PP 䛾୸Წᮦ䛜ᚓ䜙䜜䜛㔠ᆺ䛻㗪㐀䛧䛯䚹୸Წᮦ䛛䜙䛾ヨᩱ᥇ྲྀ఩⨨䜢ᅗ䠍䛻♧䛩䚹୸Წ≧䛾ヨᩱ䜢䝣䝷䜲䝇ຍᕤ➼䛷ゅᲬᮦ䛸䛧䚸ྠᅗ୰䛾䐟䡚䐤䛾⟠ᡤ䛛䜙ヨᩱ䜢᥇ྲྀ䛧䛯䚹䛩䛺䜟䛱䚸ヨᩱ䐟䐠䛿㗪ᨺ䛧ヨᩱ䛾ୖ㒊䚸ヨᩱ䐡䐢䛿୰㒊䚸䐣䐤䛿ୗ㒊䛛䜙᥇ྲྀ䛧䛯ヨᩱ䛷䛒䜛䚹ヨᩱ䐣䠈䐤䛾෭༷㏿ᗘ䛿䚸㔠ᆺᗏ㒊䛛䜙䛾෭༷㏿ᗘ䜒኱䛝䛔䛣䛸䛛䜙䐟䡚䐢䛸ẚ䜉䛶㏿䛔䚹ヨᩱ䐡䠈䐢䛻䛿 䉝䠈K 䛾⇕ฎ⌮䜢⾜䛳䛯䚹䛺䛚䚸ヨᩱ୰ᚰ㒊䛻䛿จᅛ཰⦰ᕢ䛾ᙳ㡪䛜⪃䛘䜙䜜䛯䛯䜑౑⏝䛧䛺䛛䛳䛯䚹ヨᩱ䛾໬Ꮫ⤌ᡂ䜢 ;5) 䛻䜘䜚 ᐃ䛧䚸ගᏛ㢧ᚤ㙾 20 䛻䜘䜛⤌⧊ほᐹ䚸
;5' 䝇䝨䜽䝖䝹䛾 ᐃ䚸6(0('; 䛻䜘䜛ඖ⣲䝬䝑䝢䞁䜾䜢⾜䛳䛯䚹䜎䛯䚸䝕䞁䝗䝷䜲䝖㍈㒊䛸ᅗ䠍㻌 ヨᩱ᥇ྲྀ఩⨨䝕䞁䝗䝷䜲䝖㛫㝽䛻䛚䛡䜛䝬䜲䜽䝻䝡䝑䜹䞊䝇◳䛥 ᐃ䜢⾜䛳䛯䚹㻌䠏䠊⤖ᯝ䛚䜘䜃⪃ᐹ㻌ᡂศศᯒ䛾⤖ᯝ䚸ヨᩱ䛾໬Ꮫ⤌ᡂ䛿 DW&UDW)HDW&RDW1LDW0R 䛷䛒䜚䚸ヨᩱ䛾ሙᡤ䛻䜘䜙䛪୍ᐃ䛷䛒
䛳䛯䚹&U 䛚䜘䜃 1L 䛿㓄ྜ⤌ᡂ䜘䜚䜔䜔ᑠ䛥䛟䚸&R 䛿䜔䜔኱䛝䛔್䛷䛒䛳䛯䛜䚸0R 䛚䜘䜃 )H 㔞䛿┠ᶆ⤌ᡂ㏻䜚䛷䛒䜚ᴫ䛽┠ᶆ䛹䛚䜚䛻໬Ꮫ⤌ᡂ䛜ᚓ䜙䜜䛯䛣䛸䛛䜙䚸䛣䛾ヨᩱ䜢ᐃ䛻౪䛧䛯䚹ᅗ䠎䛻ヨᩱ䐟䛾཯ᑕ㟁Ꮚ⥺ീ䜢♧䛩䚹᫂ᗘ䛾ᑠ䛥䛔㡿ᇦ䛜䝕䞁䝗䝷䜲䝖≧䛻ㄆ䜑䜙䜜䚸䝕䞁䝗䝷䜲䝖㛫㝽㒊䛾᫂ᗘ䛿㧗䛔䚹䛣䛾ྜ㔠⣔䛻䛚䛔䛶 0R
䛿᭱⤊จᅛ㒊䛻⃰໬䛩䜛䛣䛸䛜▱䜙䜜䛶䛚䜚  䚸ྜ㔠ᡂศ୰䛷┦ᑐⓗ䛻ཎᏊ␒ྕ䛾኱䛝䛔 0R 䛜᭱⤊จᅛ㒊䛻⃰໬䛧䛯䛯䜑䛸⪃䛘䜙䜜䜛䚹䜎䛯䚸᭱⤊จᅛ㒊䛾୍㒊䛻䛿⢏Ꮚ≧䛾ⓑⰍ㒊䛜ㄆ䜑䜙䜜䚸䝬䝖䝸䝑䜽䝇䛸䛿␗䛺䜛 0R 䝸䝑䝏┦䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹;5' 䝇䝨䜽䝖䝹䛷䛿 IFF ௨እ䛾ᅇᢡ䝢䞊䜽䛿ㄆ䜑䜙䜜䛺䛛䛳䛯䛜䚸ᅗ䠎㻌 㻯㼞㻲㼑㻯㼛㻺㼕㻙㻡㼍㼠㻑㻹㼛 ྜ㔠䠄ヨᩱ䐟䠅䛾཯ᑕ㟁Ꮚ⥺ീ㻌− 207 −

䛣䛾ⓑⰍ㒊䛾య✚๭ྜ䛜ᑠ䛥䛔䛯䜑䛻䚸䛣䛾┦䛻⏤᮶䛩䜛ᅇᢡ䝢䞊䜽䛜ㄆ䜑䜙䜜䛺䛛䛳䛯䛸⪃䛘䜙䜜䜛䚹
ヨᩱ䐟䛸䐠䛾䝕䞁䝗䝷䜲䝖㒊䛸䝕䞁䝗䝷䜲䝖㛫㝽䛻䛴䛔䛶䚸Ⲵ㔜䜢 JI 䛛䜙 NI 䜎䛷ኚ໬䛥䛫䛶䝬䜲䜽䝻䝡䝑䜹䞊䝇◳䛥䜢ᐃ䛧䛯⤖ᯝ䜢ᅗ䠏䛻♧䛩䚹䝕䞁䝗䝷䜲䝖㒊䜘䜚䜒䝕䞁䝗䝷䜲䝖㛫㝽䛾◳䛥䛾್䛜኱䛝䛔䛣䛸䛜ㄆ䜑䜙䜜䛯䚹ᅗ䠐䛻ヨᩱ䐣䛸䐤䛻䛚䛡䜛ྠᵝ䛾◳䛥 ᐃ䛾⤖ᯝ䜢♧䛩䚹ヨᩱ䐟䚸䐠䛸ྠᵝ䛻䝕䞁䝗䝷䜲䝖㛫㝽䛾᪉䛜◳䛔ഴྥ䜢♧䛧䛯䚹䜎䛯䚸ヨᩱ䐟䚸䐠䜘䜚䜒䐣䠊䐤䛾᪉䛜◳䛥䛾್䛜኱䛝䛔䛣䛸䛜ㄆ䜑䜙䜜䛯䚹◳䛥 ᐃ䛻䛚䛡䜛ᢲ㎸䜏Ⲵ㔜䛜኱䛝䛟䛺䛳䛶䜒䚸ヨᩱ䐟䚸䐠䛾◳䛥䛾್䛿䜋䛸䜣䛹ኚ໬䛧䛺䛛䛳䛯䛜䚸ヨᩱ䐣䚸䐤䛷䛿Ⲵ㔜䛾ቑ኱䛸䛸䛸䜒䛻◳䛥䛾್䛜኱䛝䛟䛺䛳䛯䚹ᅗ䠑䛻 䉝䠈K 䛾⇕ฎ⌮䜢⾜䛳䛯ヨᩱ䐡䚸䐢䛾◳䛥 ᐃ⤖ᯝ䜢♧䛩䚹Ⲵ㔜䛜ᑠ䛥䛔ሙྜ䛿䚸䝕䞁䝗䝷䜲䝖㛫㝽䛾᪉䛜◳䛥䛾್䛜኱䛝䛔ഴྥ䜢♧䛧䛯䛜䚸኱

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䛝䛔Ⲵ㔜䛷䛿䚸䝕䞁䝗䝷䜲䝖㒊䛸䝕䞁䝗䝷䜲䝖㛫㝽䛾◳䛥䛿䜋䜌ྠ䛨್䜢♧䛧䛯䚹

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ᅗ䠏㻌 ヨᩱୖ㒊䠄䐟䠈䐠䠅䛾䝕䞁䝗䝷䜲䝖㻌 㻌 㻌 ᅗ䠐㻌 ヨᩱୗ㒊䠄䐣䠈䐤䠅䛾䝕䞁䝗䝷䜲䝖

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մLQWHUGHQGULWH   /RDGNJᅗ䠑㻌 ヨᩱ୰㒊䠄䐡䠈䐢䠅䛾䝕䞁䝗䝷䜲䝖㒊䛚䜘䜃䝕䞁䝗䝷䜲䝖㛫㝽䛾◳䛥㻌 㻌 㻌 㒊䛚䜘䜃䝕䞁䝗䝷䜲䝖㛫㝽䛾◳䛥㻌 㻌 㻌 㒊䛚䜘䜃䝕䞁䝗䝷䜲䝖㛫㝽䛾◳䛥䠄㗪ᨺ䛧ヨᩱ䠅 㻌 㻌 㻌 䠄㗪ᨺ䛧ヨᩱ䠅 㻌 㻌 㻌 䠄䉝K ⇕ฎ⌮ヨᩱ䠅

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ᅗ䠒䛻ヨᩱ䐟䛚䜘䜃䐣䛾䝕䞁䝗䝷䜲䝖㒊䚸䝕䞁䝗䝷䜲䝖㛫㝽ϯϬ䜢♧䛩䚹䝕䞁䝗䝷䜲䝖㒊䛷䛿 )H䠈&R䠈1L 㔞䛜 &U䠈0R 㔞䜘䜚䜒኱䛝䛔䛣䛸䛜ㄆ䜑䜙䜜䛯䚹䝕䞁䝗䝷䜲䝖㛫㝽䛷䛿䝕䞁䝗䝷䜲䝖㒊䛸䛟䜙䜉䛶 &U䠈0R 㔞䛜ከ䛟᳨ฟ䛥䜜䛯䚹0R 䝸䝑䝏䛾໬ྜ≀┦䛸⪃䛘䜙䜜䜛ಶᡤ䛷䛿 0R 㔞䛜䝕䞁䝗䝷䜲䝖㒊䜘䜚䜒䠑䡚䠒ಸ኱䛝䛟䚸&U 㔞䛿䠍䠊䠑ಸ኱䛝䛛䛳䛯䚹ŽŶĐĞƚƌĂƚŝŽŶ͕;ĂƚйͿ㒊䛚䜘䜃ᅗ䠎䛷ㄆ䜑䜙䜜䛯ⓑⰍ㒊䛾 ('6 䛻䜘䜛Ⅼศᯒ⤖ᯝ⇕ฎ⌮䜢᪋䛧䛯ヨᩱ䐡䠈䐢䛻䛴䛔䛶䜒ᅗ䠒䛸ྠᵝ䛾 ᐃϮϬϭϱᶅɾĚĞŶĚƌŝƚĞ
ᶅɾŝŶƚĞƌĚĞŶĚƌŝƚĞ
ᶅɾĐŽŵƉŽƵŶĚ
ᶉɾĚĞŶĚƌŝƚĞ
ᶉɾŝŶƚĞƌĚĞŶĚƌŝƚĞ
ᶉɾĐŽŵƉŽƵŶĚ

ϭϬϱ䜢⾜䛳䛯⤖ᯝ䚸ඖ⣲ศᕸ䛾ഴྥ䛿ᅗ䠒䛸䜋䛸䜣䛹ྠ䛨䛷䛒䛳Ϭ䛯䚹䛣䜜䜙䛾䛣䛸䛛䜙䚸ᅗ䠏䡚䠑䛷♧䛧䛯◳䛥䛾㐪䛔䛾せᅉ䛿ඖ⣲ศᕸ䛾䜏䛷䛿ㄝ᫂䛷䛝䛪䚸᱁Ꮚ䜂䛪䜏➼䛾⤖ᬗෆ㒊

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ᅗ䠒㻌 䝕䞁䝗䝷䜲䝖㒊䛚䜘䜃䝕䞁䝗䝷䜲䝖㛫㝽㒊䛾ඖ⣲ศᕸ䛾≧ែ䛻⏤᮶䛩䜛ᙳ㡪䛷䛒䜛䛣䛸䛜⪃䛘䜙䜜䜛䚹
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  %*OXGRYDW]$+RKHQZDUWHU'&DWRRU(+&KDQJ(3*HRUJH525LWFKLH6FLHQFH  SS
  :+/LX=3/X-<+H-+/XDQ=-:DQJ%/LX<RQJ/LX0:&KHQ&7/LX$FWD0DWHULDOLD  SS 㻌 ୸ᒣᚭ ⚟⃝ⱆ⾰ ᪥ᮏ㔠ᒓᏛ఍➨  ᅇㅮ₇኱఍  SS6
䠄ඹྠ◊✲ศ㔝䠖᥋ྜ⤌⧊ホ౯Ꮫศ㔝䠅− 208 −

ῐỈ୰࡟࠾ࡅࡿ 686 ẕᮦ㗦ᩄ໬ᮦ࢞ࣝࣂࣀᑐࡢ⭉㣗ᣲື࡜ᚤ⏕≀ྀࡢゎᯒ ⛅⏣኱Ꮫ኱Ꮫ㝔⌮ᕤᏛ◊✲⛉     ᐑ㔝 Ὀᚁ㻝㻚ㅖゝ㻌ⴭ ⪅ ࡽ ࡣ ࠊᚤ ⏕ ≀ ⭉ 㣗 ࣜ ࢫ ࢡ ࡀ ␲ ࢃ ࢀ ࡿ ῐ Ỉ ⣔ ᐇ ᶵ ⎔ ቃ ࡛ ࠊྛ ✀ ᵓ 㐀 ᮦ ᩱ ࡢ ⾲ 㠃 ࡟ ᙧ ᡂ ࡉ ࢀ ࡿ ᚤ⏕ ≀ ྀ ࢆ ゎ ᯒ ࡋ ࠊ㟁 ఩ ㈗ ໬ ࡜ ᒁ 㒊 ⭉ 㣗 ࡀ ☜ ㄆ ࡉ ࢀ ࡓ ⪏ 㣗 㗰 ࡟ ࠾ ࠸ ࡚ 㟁 Ꮚ ཷ ᐜ ᶵ ⬟ ࢆ ᭷ ࡍ ࡿ ᚤ ⏕ ≀ ࡀඃ ༨ ໬ ࡍ ࡿ ഴ ྥ ࢆ ☜ ㄆ ࡋ ሗ ࿌ ࡋ ࡓ  ࠋᚤ ⏕ ≀ Ꮡ ᅾ ⎔ ቃ ࡛ ࡢ ࢫ ࢸ ࣥ ࣞ ࢫ 㗰 ࡢ ㈗ ໬ ཎ ᅉ ࡟ ࡘ ࠸ ࡚ ࡣ ࠊᚤ⏕ ≀ ࡢ ௦ ㅰ ≀ ㉁ ࡞ ࡝ ࡀ ࠊ࢝ ࢯ ࣮ ࢻ ࡛ ࡢ 㟁 Ꮚ ᾘ ㈝ ࡟ 㛵 ୚ ࡍ ࡿ ࡇ ࡜ ࢆ ᣦ ᦬ ࡍ ࡿ ሗ ࿌  ࡀ ࠶ ࡿ ࡀ ࠊ㈗ ໬ ᣲື ࢆ ᑟ ࡃ ᚤ ⏕ ≀ ྀ ࡢ ᐇ ែ ࡸ ࠊ࢔ ࣀ ࣮ ࢻ ࡜ ࢝ ࢯ ࣮ ࢻ ࡢ ᙧ ᡂ㸦 㟁 ఩ ኚ ື 㸧࡟ క ࠺ ᚤ ⏕ ≀ ྀ ࡢ ື ែ ࡣ ᮍ ゎ᫂࡜ࡉࢀ࡚࠸ࡿࠋ
ୖ グ ほ Ⅼ ࠿ ࡽ ࠊᡃ ࠎ ࡣ ࢫ ࢸ ࣥ ࣞ ࢫ 㗰 ࡢ ㈗ ໬ ᣲ ື ࡟ 㛵 ࢃ ࡿ ᚤ ⏕ ≀ ື ែ ࡟ 㛵 ࡍ ࡿ ◊ ✲ ࢆ ᒎ 㛤 ࡋ ࡚ ࠸ ࡿࠋᮏሗ࡛ࡣࠊᚤ⏕≀⭉㣗ࣜࢫࢡࡀ␲ࢃࢀࡿᐇ⎔ቃ࡟ࠊ␗✀㔠ᒓ⤌⧊ྠኈࢆ᥋ゐࡉࡏࡿࡇ࡜࡛࢞ࣝࣂ ࣀ ᑐ ࡜ ࡋ ࡓ ヨ 㦂 ∦ ࢆ タ ⨨ ࡋ ࠊ ヨ 㦂 ∦ ࡢ ⭉ 㣗 ᣲ ື ࠊ ࢔ ࣀ ࣮ ࢻ ࢝ ࢯ ࣮ ࢻ ࡟ ࠾ ࡅ ࡿ ᚤ ⏕ ≀ ྀ ࡢ 㐪 ࠸ ࡟ࡘ࠸࡚ㄪᰝࡋࡓ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ
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㻞㻚

ᐇ㦂᪉ἲ㻌

㻞㻚㻝㻌 ヨ ᩱ 㻌686 㗰 ࢆ ౪ ヨ 㗰 ࡟ 㑅 ᐃ ࡋ ࠊẕ ᮦ㸦 ཷ ධ ᮦ 㸧ࠊ㗦 ᩄ ໬ ᮦ ࢆ ‽ ഛ ࡋ ࡓ ࠋîî WPP ࡜ ࡞ ࡿ ࡼ ࠺ ࡟ษ ᩿ ࡋ ࡓ ヨ ᩱ ࡟ ᑐ ࡋ ࠊホ ౯ 㠃 ࡣ 㸡  ࡢ ࢚ ࣓ ࣜ ࣮ ⣬ ࡟ ࡼ ࡿ ‵ ᘧ ◊ ☻ ௙ ୖ ࡆ ࡜ ࡋ ࡓ ࠋᐇ ᶵ ⎔ ቃ ࡢ 㜵 ⇿つ ไ ୗ ࡛ ࡢ ᾐ ₕ ᐇ 㦂 ࡛ ࠊヨ ᩱ 㛫 ࡢ 㟁 ఩ ᕪ ࢆ ຺ ᱌ ࡋ ࡓ ⣔ ࢆ ᵓ ⠏ ࡍ ࡿ ࡇ ࡜ ࢆ ┠ ⓗ ࡟ ࠊ␗ ✀ 㔠 ᒓ ⤌ ⧊㸦 686 ẕ ᮦ 㗦 ᩄ ໬ ᮦ 㸧ࢆ ▷ ⤡ ࡉ ࡏ ࡓ ࢞ ࣝ ࣂ ࣀ ᑐ ࡜ ࡋ ࡚ ヨ 㦂 ∦ ࢆ ᵓ ᡂ ࡋ ࡓ ࠋ686 㗦 ᩄ ໬ ᮦ㸦 ࢔ ࣀ ࣮ࢻ ᝿ ᐃ ഃ 㸧 ࢆ î PPࠊ ྠ ẕ ᮦ 㸦 ࢝ ࢯ ࣮ ࢻ ᝿ ᐃ ഃ 㸧 ࢆ î PP ࡜ ࡋ ࠊ ⪏ 㣗 ᛶ ࡢ ␗ ࡞ ࡿ ヨ ᩱ 㛫 ࡟ΰ ᡂ 㟁 ఩ ࡀ ᙧ ᡂ ࡉ ࢀ ࡓ 㝿 ࡟ ࠊ࢔ ࣀ ࣮ ࢻ ᝿ ᐃ ഃ ࡢ 㟁 ὶ ᐦ ᗘ ࡟ ኱ ࡁ ࡞ ໙ 㓄 ࢆ ☜ ಖ ࡛ ࡁ ࡿ ࡼ ࠺ ࡟ ᕤ ኵ ࡋ ࡓ ࠋ࡞ ࠾ ヨ 㦂 ∦ ࡢ ᵓ ᡂ ࡟ 㝿 ࡋ ࠊ▷ ⤡ 㒊 ࡣ $J ࣌ ࣮ ࢫ ࢺ ࡛ ᑟ 㟁 ᛶ ࡜ 㠃 ᥋ ྜ ࢆ ☜ ಖ ࡋ ࠊホ ౯ 㠃 ௨ እ ࡣ ࢝ ࣉ ࢺࣥࢸ࣮ࣉ࡛⿕そࡋࡓࠋ㻞㻚㻞㻌 ᾐ ₕ ヨ ヨ 㦂 㻌ᾐ ₕ ヨ 㦂 ࡣ ᕤ ᴗ ⏝ Ỉ ㈓ Ỉ ᵴ ࡢ 㛤 ཱྀ ࣁ ࢵ ࢳ ࠿ ࡽ ࠊヨ 㦂 ∦ ࢆ ࢸ ࣇ ࣟ ࣥ ࣡ ࢖ ࣖ ࣮ ࡛ ⟁ ≧ ࡟ 㐃 ⤖ ࡉ ࡏ ࡚ ྞࡾ ୗ ࡆ ࠊႚ Ỉ 㒊 ࠿ ࡽ ༑ ศ ࡞ ㊥ 㞳 ࢆ ☜ ಖ ࡋ ࡓ ≧ ែ ࡛ 㟼 ⨨ ࡋ ࡓ ࠋࡇ ࡢ ᫬ ࠊヨ 㦂 ∦ ホ ౯ 㠃 ࡣ ࠊ㈓ Ỉ ᵴ ᗏ 㒊࡟ ᑐ ࡋ ᆶ ┤ ࡜ ࡋ ࡓ ࠋᾐ ₕ ᮇ 㛫 ࢆ ⪃ ៖ ࡋ  ࢭ ࢵ ࢺ ࡢ ヨ 㦂 ∦ ࢆ ⏝ ព ࡋ ࠊᾐ ₕ ᮇ 㛫  ࣨ ᭶ ࠊ ࣨ ᭶ ࡢ ྛ ᮇ㛫 ⤊ ஢ ᫬ ࡟  ࢭ ࢵ ࢺ ࡎ ࡘ ヨ 㦂 ∦ ࢆ ᘬ ୖ ࡆ ࡓ ࠋᾐ ₕ ⤊ ஢ ᚋ ࡟ ࠊ⾲ 㠃 ほ ᐹ ࠊ⭉ 㣗 ῶ 㔞ᐃ㸦 ⭉ 㣗 ⏕ ᡂ ≀㝖 ཤ ࡣ ,62 ࡟ ‽ ᣐ 㸧ࢆ ᐇ ᪋ ࡋ ࡓ ࠋࡲ ࡓ ࠊᾐ ₕ ⤊ ஢ ┤ ᚋ ࡟ ࡣ ࠊᚤ ⏕ ≀ ᳨ య ࢆ ᥇ ྲྀ ࡋ ࠊࢼ ࣀ ࣏ ࢔ ࢩ࣮ࢣࣥࢫ࡟ࡼࡿᚤ⏕≀ྀゎᯒࢆᐇ᪋ࡋࡓࠋ㻟㻌 㻌 ⤖ ᯝ 䛸⪃ ᐹ 㻟㻚㻝㻌 ⭉ 㣗 ῶ 㔞ᐃ㻌 )LJ ࡟  ࣨ ᭶ ᾐ ₕ ᚋ ࡢ ⭉ 㣗 ῶ 㔞ᐃ ⤖ ᯝ ࢆ ♧ ࡍ ࠋ ẕ ᮦ 㸦 %0%DVH0HWDO㸧 ࢆ ᕥ ⦪ ㍈ ࠊ 㗦 ᩄ ໬ᮦ 㸦 6+6HQVLWL]HG+HDWWUHDWHG㸧 ࢆ ྑ ⦪ ㍈ ࡟ 㓄 ⨨ ࡋ ࡓ ࠋ ẕ ᮦ ホ ౯ 㠃 ࡣ ೺ ඲ ࡞ ≧ ែ ࢆ ⥔ ᣢ ࡋ ࡚ ࠸ ࡓࡀ ࠊᴟ ഹ ࠿ ࡞ ⭉ 㣗 ῶ 㔞 ࢆ ♧ ࡋ ࡓ ࠋཎ ᅉ ࡣ ࠊ࢝ ࣉ ࢺ ࣥ ࢸ ࣮ ࣉ ⏺ 㠃 ࠊࢸ ࣇ ࣟ ࣥ ࣡ ࢖ ࣖ ᅛ ᐃ 㒊 ࡛ ࡢ ㍍ ᚤ ࡞ࡍ ࡁ ࡲ ⭉ 㣗 ࡢ ᙳ 㡪 ࡀ ᥎ ᐃ ࡉ ࢀ ࡿ ࠋ㗦 ᩄ ໬ ᮦ ࡟ ࠾ ࠸ ࡚ ࡶ ࠊホ ౯ 㠃 ࡟ ࡣ ┠ ❧ ࡗ ࡓ ᦆ യ ࡣ ☜ ㄆ ࡉ ࢀ ࡞ ࠿ ࡗࡓ ࡀ ࠊ⭉ 㣗 ῶ 㔞 ࡣ ẕ ᮦ ࡟ ẚ ࡭ ⣙  ᱆ ⛬ ᗘ ኱ ࡁ ࡞ ್ ࢆ ♧ ࡋ ࡓ ࠋࡇ ࡢ ⌮ ⏤ ࡟ ࡘ ࠸ ࡚ ࡣ ࠊୖ ㏙ ẕ ᮦ ࡛ ♧ ࡋ− 209 −ࡓ ⪃ ᐹ ࡟ ຍ ࠼ ࠊホ ౯ 㠃 ௨ እ ࡢ  㠃 ࡟ ࢃ ࡎ ࠿ ࡟ ṧ Ꮡ ࡋ ࡚ ࠸ ࡓ ⇕ ฎ ⌮ ᫬ ࡢ 㓟 ໬ ࢫ ࢣ ࣮ ࣝ ࡢ ᙳ 㡪 ࡀ ᥎ ᐃ ࡉࢀ ࡿ ࠋ࢞ ࣝ ࣂ ࣀ ᑐ ࡜ ࡋ ࡓ ࢔ ࣀ ࣮ ࢻ ᝿ ᐃ ᮦ ࡣ ༢ ୍ ᮦ ࡢ ῶ 㔞 ࡼ ࡾ ࡶ ᑠ ࡉ ࡞ ್ ࡟ ࡞ ࡗ ࡓ ࠋࡍ ࡞ ࢃ ࡕ ࠊホ ౯
㠃 ✚ ẚ 㸦 ༢ ୍ ᮦ ࡣ î PP㸧 ࡢ ᙳ 㡪 ࢆ ゎ ᾘ ࡍ ࡿ ࡯ ࡝ ࠊ 㔠 ᒓ ⤌ ⧊ ࡟ ࡼ ࡿ ⪏ 㣗 ᛶ ࡢ 㐪 ࠸ ࡀ ⭉ 㣗 ࢆ ຍ ㏿࡛ ࡁ ࡞ ࠿ ࡗ ࡓ ࡇ ࡜ ࢆ ព ࿡ ࡍ ࡿ ࠋࡓ ࡔ ࡋ ࠊྠ ୍ ⎔ ቃ ࡛ ࡢ ⮬ ↛ 㟁 ఩ᐃ ࡛ ࡣ ࠊ6+ ࡣ %0 ࡟ ᑐ ࡋ P9 ⛬ ᗘ ᑠ ࡉ ࡞ ್ ࡛ ᥎ ⛣ ࡍ ࡿ ഴ ྥ ࡀ ☜ ㄆ ࡉ ࢀ ࡿ ࡓ ࡵ ࠊ ࢞ ࣝ ࣂ ࣀ ᑐ ࡜ ࡋ ࡚ ࡢ ᶵ ⬟ ࡣ ⥔ ᣢ ࡉ ࢀ ࡚ ࠸ࡓ࡜⪃࠼࡚࠸ࡿࠋ
‫ ׋‬ේ๱ ஖᧓  ǫ உƴ Ɠ ƚǔ Ӳᚾ ૰Ʒ Ᏽ᫢ถ ᣽ 㻟㻚㻞㻌 ᚤ ⏕ ≀ ྀ ゎ ᯒ ࢞ ࣝ ࣂ ࣀ ᑐ ࡜ ࡋ ࡚ ᵓ ᡂ ࡋ ࠊ࢝ ࢯ ࣮ ࢻ ᶵ ⬟ ࢆ ᮇ ᚅ ࡋ ࡓ ཷ ධ ᮦ㸦 %0*DO&DW㸧࡜ ࢔ ࣀ ࣮ ࢻ ᶵ ⬟ ࢆᮇ ᚅ ࡋ ࡓ 㗦 ᩄ ໬ ᮦ㸦 6+*DO$QR㸧࡛ ࡣ ࠊᚤ ⏕ ≀ ྀ ᵓ ᡂ ࡀ ኱ ࡁ ࡃ ␗ ࡞ ࡿ ⤖ ᯝ ࡀ ☜ ㄆ ࡉ ࢀ ࡓ ࠋ≉ ᚩ࡜ ࡋ ࡚ ࠊ  %0 *DO &DW࡟ ࡣ 3VHXGRPRQDV ᒓ ⣽ ⳦ ࠊ  6+ *DO $QR࡟ ࡣ 6LGHUR[\GDQV ᒓ ⣽ ⳦ ࡸ)HUULJHQLXP ᒓ ⣽ ⳦ ࡜ ࠸ ࠺ 㕲 㓟 ໬ ⣽ ⳦ ࡀ ඃ ༨ ໬ ࡍ ࡿ ഴ ྥ ࡀ ♧ ࡉ ࢀ ࡓ ࠋ  6+ *DO$QR࡛ 㕲 㓟 ໬ ⣽ ⳦ࡢ ඃ ༨ ໬ ഴ ྥ ࡣ ࠊ⾲ 㠃 ほ ᐹ ࠊ⭉ 㣗 ῶ 㔞*DO &DW࡟ ࠾ ࠸ ࡚ ࠊ 㟁 Ꮚ ཷ ᐜ ⬟ᐃ ࡢ ⤖ ᯝ ࡟ Ⰻ ࡃ ᩚ ྜ ࡍ ࡿ ࠋࡲ ࡓ ࠊ㟁 Ꮚ ὶ ධ ᴟ ࡜ ࡞ ࡿ %0ࡀ ☜ ㄆ ࡉ ࢀ ࡿ 3VHXGRPRQDV ᒓ ⣽ ⳦ ࡢ ඃ ༨ ໬ ࡣ ⯆ ࿡ ῝ ࡃ ࠊ ๓ ሗ  ࡜ࡶᩚྜࡍࡿ⤖ᯝ࡜࡞ࡗࡓࠋㅰ㎡㻌ᮏ ◊ ✲ ࡣ ࠊᾏ ὒ ◊ ✲ 㛤 Ⓨ ᶵ ᵓ  ⱝ ஭ ᬡ  ༤ ኈ ࠊ ᰴ ,13(; ࣜ ࢧ ࣮ ࢳ ࣘ ࢽ ࢵ ࢺ  ◁ ሙ ᩄ ⾜ ༤ ኈ ࠊỈ ୖ
⿱ ㈗ Ặ ࠊ㇏ ⏣ ᓅ ኱  Ặ ࠊᏳ ஭ ᙬ ஀  Ặ ࠊᮾ ໭ ኱ Ꮫ ኱ Ꮫ 㝔 ⌮ ᕤ Ꮫ ◊ ✲ ⛉  㬍 ⏣ 㥴  Ặ ࡜ ࡢ ඹ ྠ ◊ ✲ ࡟ ࡼ ࡗ࡚ᐇ᪋ࡉࢀࡓࡶࡢ࡛࠶ࡿࡇ࡜ࢆ௜グࡋࠊㅰពࢆ⾲ࡍࠋཧ⪃ᩥ⊩㻌 6:DNDL1(QR.0L\DQDJD+0L]XNDPL76XQDED<0L\DQRQSM0DWHU'HJUDG   .,WR50DWVXKDVKL7.DWR20LNL+.LKLUD㸪 =DLU\RWR.DQN\R   <0L\DQR.7DL67RNLWD76XQDED+0L]XNDPL6:DNDL&$03,6,-    % &KXJK 0 6LQJK 6 7KDNXU % 3DQL $ . 6LQJK 9 6 6DML $&6 %LRPDWHULDOV 6FLHQFH(QJLQHHULQJ   <0L\DQR.7DL67RNLWD76XQDED+0L]XNDPL6:DNDL3URF-6&(0DW(QY   

− 210 −

㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⤌⧊ホ౯Ꮫศ㔝㸧ᩓ㐓࢚ࢿࣝࢠ࡟ࡼࡿ $ ࣮ࣞࢨ⁐᥋⥅ᡭࡢ⑂ປᙉᗘホ౯⚄ᡞ኱Ꮫ኱Ꮫ㝔 ᕤᏛ◊✲⛉ ᶵᲔᕤᏛᑓᨷ
ᵓ㐀Ᏻ඲ホ౯Ꮫ◊✲ᐊ ᒣᮏ ᣅᐇ



◊✲⫼ᬒ

㏆ᖺᆅ⌫⎔ቃၥ㢟ࡢほⅬ࠿ࡽ㸪㍺㏦ᶵჾࡢ㍍㔞໬࡟ྥࡅࡓᢏ⾡㛤Ⓨࡀ⾜ࢃࢀ࡚࠾ࡾ㸪ẚᙉᗘ࡟ඃࢀᡂᙧᛶࡀ㧗࠸࢔࣑ࣝࢽ࣒࢘ྜ㔠ࡢ㐺⏝ࡀ㐍ࡵࡽࢀ࡚࠸ࡿ㸬$O ྜ㔠ࡢ࣮ࣞࢨ⁐᥋࡛ࡣ㸪࢞ࢫࡸ⾲㠃ࡢ㓟໬⿕⭷࡟ྵࡲࢀࡿỈ⣲㸪Ẽ໬ࡋࡓྜ㔠ᵓᡂ≀㉁࡞࡝ࢆᕳࡁ㎸ࡴࡇ࡜࡛✵Ὕ࡜࡞ࡿ࣏ࣟࢩࢸ࢕ࡸ⁐᥋┤ᚋࡢจᅛ᫬࡟Ⓨ⏕ࡍࡿ㧗 ๭ࢀ࡞࡝ࡢḞ㝗ࡀⓎ⏕ࡍࡿ㸬ࡇࢀࡽࡢෆ㒊Ḟ㝗࡜ࢫࣃࢵࢱࡢⓎ⏕࡟క࠺࢔ࣥࢲ࣮ࣇ࢕ࣝ࡞࡝ࡢ⾲㠃Ḟ㝗ࡣ㸪᥋ྜ㒊ࡢᙉᗘࢆ⣲ᮦᙉᗘࡼࡾపୗࡍࡿ࡜࠸࠺ၥ㢟ࡀ࠶ࡿ㸬ࡑࡢࡓࡵ㸪◚ቯࡢ୺せᅉ࡛࠶ࡿ⑂ປ࡟ᑐࡍࡿホ౯ࢆ⾜࠺ᚲせࡀ࠶ࡿ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ᩓ㐓࢚ࢿࣝࢠ࡟ᇶ࡙ࡃ⑂ປ㝈ᗘ᥎ᐃἲ࡟╔┠ࡋࡓ㸬ᩓ㐓࢚ࢿࣝࢠ࡜ࡣ㸪ᒁᡤⓗ࡞ረᛶኚᙧ࡟㉳ᅉࡋࡓ࢚ࢿࣝࢠࡢᩓ㐓࡟ࡼࡿᚤᑠ࡞Ⓨ⇕࡛࠶ࡿ㸬ᩓ㐓࢚ࢿࣝࢠࡢኚ໬ࢆ㏣ᚑࡍࡿࡇ࡜࡛㸪㕲㗰ᮦᩱࡸ㍍㔠ᒓᮦᩱ࡞࡝
ᖜᗈ࠸ᮦᩱ࡟ᑐࡋ࡚㎿㏿࡟⑂ປ㝈ᗘࢆ᥎ᐃ࡛ࡁࡿホ౯ᡭἲࡀᥦ᱌ࡉࢀ࡚࠸ࡿ㸬ᮏሗ࡛ࡣ㸪$ ࣮ࣞࢨ⁐᥋⥅ᡭࢆᑐ㇟࡟㸪ᩓ㐓࢚ࢿࣝࢠ࡟ᇶ࡙ࡃ⑂ປᙉᗘホ౯࡟ࡘ࠸࡚ᐇ㦂ⓗ᳨ウࢆ⾜ࡗࡓ㸬ᩓ㐓࢚ࢿࣝࢠ࡟ࡼࡿ ᗘኚືヨ㦂∦࡟Ⓨ⌧ࡍࡿ ᗘኚືࢆ㉥እ⥺ࢧ࣮ࣔࢢࣛࣇ

ࣝࢠࡢィ Ἴᙧࡢᶍᘧᅗࢆ )LJ ࡟♧ࡍ㸬)LJ ࡢ㯮⥺࡟♧ࡍṇᘻἼ≧ࡢⲴ㔜ࢆ㈇Ⲵࡋࡓሙྜ㸪⇕ᙎᛶᗘኚື㸦)LJ 㟷⥺㸧ࡣ㈇Ⲵ࿘Ἴᩘ࡜ྠࡌ࿘Ἴᩘࡢ㏫఩┦ࡢṇᘻἼ≧࡟࡞ࡿ㸬୍᪉㸪 ᐃ≀ࡢᛂຊኚືࡀᙎ

7HPSHUDWXUHFKDQJH
GXHWR GLVVLSDWHG HQHUJ\7'

7HPSHUDWXUH .

࢕࡛ほ ࡋࡓሙྜࡢ⇕ᙎᛶ ᗘኚື࠾ࡼࡧᩓ㐓࢚ࢿ

6WUHVV

6WUHVV 03D7HPSHUDWXUHFKDQJH
E\ WKHUPRHODVWLFHIIHFW7(ᛶ⠊ᅖෆ࡟࠶ࡗ࡚ࡶ㸪୙ྍ㏫࡞Ⓨ⇕ࡀ⏕ࡌḟ➨࡟ᗘୖ᪼ࡀⓎ⏕ࡍࡿሙྜࡀ࠶ࡿ㸬ࡇࡢࡼ࠺࡞୙ྍ㏫࡞
Ⓨ⇕ࡣᩓ㐓࢚ࢿࣝࢠ࡟ࡼࡿⓎ⇕࡜࿧ࡤࢀ㸪ࡑࡢ ᗘኚ໬ࡣ㸪 ࢧ࢖ࢡࣝࡢṇᘻἼⲴ㔜࡟࠾࠸࡚㸪)LJ ࡢ

7LPH V
)LJ6FKHPDWLFLOOXVWUDWLRQRIWHPSHUDWXUHFKDQJHLQWKH
FDVHRIWKHUPRHODVWLFLW\ DQGGLVVLSDWHGHQHUJ\㉥⥺࡛♧ࡍ᭱኱ᘬᙇ࠾ࡼࡧ᭱኱ᅽ⦰ᛂຊࡀస⏝ࡍࡿ᫬࡟Ⓨ⏕ࡍࡿ࡜⪃࠼ࡽࢀ㸪㈇ⲴࡋࡓṇᘻἼⲴ㔜ࡢ  ಸ࿘Ἴᩘ࡟ᙜࡓࡿ ᗘᡂศ࡜ࡋ࡚㉥እ⥺ࢧ࣮ࣔࢢࣛࣇ࢕࡟ほ ࡉࢀࡿ㸬 


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7DEOH:HOGLQJFRQGLWLRQ:HOGEHDG)LJ6KDSHDQGGLPHQVLRQVRIVSHFLPHQ XQLWPP − 211 −

⥅ᡭࡢᛂຊ᣺ᖜ୍ᐃヨ㦂㸦⑂ປヨ㦂㸧ࡣ㸪㮛ᐑ〇సᡤ〇Ἔᅽᘧࢧ࣮࣎ࣃࣝࢧࢆ⏝࠸ࡓ㸬㈇Ⲵ᮲௳ࡣ㸪ᛂຊẚ 5 㸪࿘Ἴᩘ I +] ࡜ࡋ㸪ヨ㦂∦ࡀ  ࡘ࡟᏶඲ศ㞳ࡋࡓ᫬Ⅼࢆ⑂ປ◚ቯ࡜ᐃ⩏ࡋࡓ㸬ᮍ◚᩿᫬ࡢヨ㦂ᡴษࡾᅇᩘࡣ
1 îF\FOHV ࡜ࡋࡓ㸬ࡲࡓ㸪ᮏ◊✲࡛╔┠ࡍࡿᩓ㐓࢚ࢿࣝࢠࡣ㸪▷࠸⧞㏉ࡋᩘࡈ࡜࡟ᛂຊ᣺ᖜࢆ 03D ࡈ࡜࡟㝵ẁ≧࡟ቑຍࡉࡏࡿ㝵ẁ≧ᛂຊ᣺ᖜቑຍヨ㦂࠿ࡽ㸪㉥እ⥺ࢧ࣮ࣔࢢࣛࣇ࢕ࢆ⏝࠸࡚ ᐃࡋࡓ㸬㈇Ⲵ᮲௳ࡣ⑂ປヨ㦂࡜ྠᵝ࡛㸪ᛂຊẚ 5 㸪㈇Ⲵ࿘Ἴᩘ I +]㸪ྛᛂຊ᣺ᖜࡢ⧞㏉ࡋᩘࡣ F\FOHV ࡜ࡋࡓ㸬
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࣮ࣞࢨ⁐᥋⥅ᡭࡢ⑂ປヨ㦂⤖ᯝ㸦61 ᭤⥺㸧ࢆ )LJ ࡟♧ࡍ㸬࡞࠾࡞࠾ྠᅗࡣ㸪⦪㍈ࡀ㈇Ⲵヨ㦂ຊ᣺ᖜࢆ◚᩿⟠ᡤࡢ㠃✚࡛㝖ࡋࡓᛂຊ᣺ᖜ㸪ᶓ㍈ࡀ◚᩿ࡲ࡛ࡢ⧞㏉ࡋᩘࢆࡑࢀࡒࢀ♧ࡋࡓ 61 ᭤⥺࡛࠶ࡿ㸬⁐᥋ࡲࡲ⥅ᡭࡢ⑂ປ㝈ᗘࡣ a03D ࡛࠶ࡾ㸪◊☻⥅ᡭࡢࡑࢀ㸦a03D㸧ࡼࡾపୗࡋ࡚࠸ࡿ㸬ࡑࡇ࡛㸪)LJ ࡟⑂ປヨ㦂ࢆ୰᩿ࡋࡓ
㝿ࡢ⥅ᡭ࡟⏕ࡌࡿ⑂ປࡁ⿣ࡢ㐍ᒎᵝ┦ࢆほᐹࡋࡓ⤖ᯝࢆ♧ࡍ㸬ྠᅗࡼࡾ㸪⁐᥋ࡲࡲ⥅ᡭࡣ⁐᥋㔠ᒓ࡜⇕ᙳ㡪㒊࡜ࡢቃ⏺࠿ࡽ⑂ປࡁ⿣ࡀⓎ⏕࣭㐍ᒎࡋ࡚࠸ࡿࡀ㸪◊☻⥅ᡭࡢࡑࢀࡣ㸪ẕᮦ㡿ᇦ࡛⑂ປࡁ⿣ࡀⓎ⏕࣭㐍ᒎࡋ࡚࠸ࡿ㸬ࡋࡓࡀࡗ࡚㸪⁐᥋㒊ࡢ⾲㠃ᛶ≧ࡀ⥅ᡭࡢ⑂ປ㝈ᗘ࡟ᙳ㡪ࢆཬࡰࡍࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪࠸ࡎࢀࡢ⁐᥋⥅ᡭࡢ⑂ປ㝈ᗘࡣ㸪ẕᮦヨ㦂∦ࡢࡑࢀ㸦a03D㸧࡜ẚ㍑ࡋ࡚
኱ࡁࡃపୗࡍࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬㝵ẁ≧ᛂຊ᣺ᖜቑຍヨ㦂࡟࠾ࡅࡿ㸪ᩓ㐓࢚ࢿࣝࢠィ⤖ᯝࢆ )LJ ࡟♧ࡍ㸬࡞࠾ᩓ㐓࢚ࢿࣝࢠࡢホ౯㡿ᇦࡣ㸪ẕᮦヨ㦂∦࠾ࡼࡧྛ✀⁐᥋⥅ᡭࡢ࠸ࡎࢀ࡟࠾࠸࡚
ࡶ⑂ປ◚ቯ㉳Ⅼࢆ୰ᚰ࡜ࡍࡿ îSL[HO ࡜ࡋࡓ㸬ࡲࡓᅗ୰ࡢᐇ⥺ࡣ㸪 㡿ᇦศ๭᭱ᑠ㏆ఝἲ࡟࡚⑂ປ㝈ᗘ᥎ᐃࢆᐇ᪋ࡋࡓ㝿ࡢ㧗 ࣭ప 㡿ᇦࡢ㏆ఝ⥺࡛࠶ࡿ㸬࡞࠾㸪㧗 㡿ᇦࡣ஧ḟ᭤⥺㏆ఝ㸪ప 㡿ᇦࡣ┤⥺㏆ఝ࡜ࡋࡓ㸬ྠᅗࡼࡾ㸪ẕᮦヨ㦂∦㸪⁐᥋ࡲࡲ⥅ᡭ㸪◊☻⥅ᡭࡢ  㡿ᇦࡢቃ⏺್ࡣࡑࢀࡒࢀ㸪a03D㸪a03D㸪a03D ࡛࠶ࡗࡓ㸬ࡇࡢቃ⏺್ࢆ⑂ປ㝈ᗘ࡜᥎ᐃࡍࡿ࡜㸪⑂ປヨ㦂࡟࡚ᐇ㝿࡟ྲྀᚓࡋࡓ⑂ປ㝈ᗘ࡜࠾࠾ࡼࡑ୍⮴ࡋ࡚࠸ࡿ㸬ࡋࡓࡀࡗ࡚㸪$ ࣮ࣞࢨ⁐᥋⥅ᡭ࠾ࡼࡧࡑࡢẕᮦࡣ㸪ᩓ㐓࢚ࢿࣝࢠ࡟ᇶ࡙ࡁ⑂ປ㝈ᗘࢆ᥎ᐃ࡛ࡁࡿྍ⬟ᛶࡀ♧ࡉࢀࡓ㸬 㸦ඹྠ◊✲ศ㔝㸸᥋ྜ⤌⧊ホ౯Ꮫศ㔝㸧− 212 −

䎱➄ʉ‫‫‬ɵɢ˟ˣ࣭˳ʹ˄̂䮓⩑ʌ㲳䗹⌉ㄑ澔 䟂⼨䮓⩑ʌ㣌弡ℷ⺢ʆ˥ʹʿ∼䕃⻝䐩㟼ᒸ኱Ꮫ኱ከ ဴྐ㸯㸬┠ⓗ⇕἞⒪>@ࡸ☢Ẽ⢏Ꮚ࢖࣓࣮ࢪࣥࢢ>@࡟௦⾲ࡉࢀࡿࣂ࢖࢜་⒪ᛂ⏝>@ࢆ ☢ᛶࢼࣀ⢏Ꮚࡣࠊࡀࢇ

┠ᣦࡋ࡚┒ࢇ࡟◊✲ࡉࢀ࡚࠸ࡿࠋ☢ᛶࢼࣀ⢏Ꮚࡢෆ㒊☢໬ࡢ༳ຍ☢ሙ࡟ᑐࡍࡿᛂ⟅㸦☢໬ᛂ⟅㸧ࡢࠊ⢏Ꮚᵓ㐀࡟ᑐࡍࡿ౫Ꮡᛶࡢゎ᫂ࡣᴟࡵ࡚㔜せ࡞ㄢ㢟࡛࠶ࡿࠋ≉࡟ࠊ࣐ࣝࢳࢥ࢔ᵓ㐀㸦ࡲࡓࡣ࣓ࢰࢡࣜࢫࢱࣝᵓ㐀ࠊࢼࣀࣇ࣮ࣛ࣡ᵓ㐀㸧࡜࿧ࡤࢀࡿ」ᩘࡢࢥ࢔࡜࡞ࡿ⢏Ꮚࡀࢡࣛࢫࢱ࣮ࢆᙧᡂ
ࡋࡓᵓ㐀࡛ࡣࠊࢥ࢔⢏Ꮚ༢య࡜␗࡞ࡿ☢Ẽ≉ᛶࢆ♧ࡋࠊࡀࢇ⇕἞⒪ࡸ☢Ẽ⢏Ꮚ࢖࣓࣮ࢪࣥࢢ࡟

࠾࠸࡚ඃࢀࡓ☢Ẽ≉ᛶࢆ♧ࡍ>@୍᪉࡛ࠊࡑࡢヲ⣽࡞࣓࢝ࢽࢬ࣒ࡣᮍゎ࡛᫂࠶ࡿࠋ
ᮏ◊✲࡛ࡣࠊ࣐ࣝࢳࢥ࢔ᵓ㐀ࡢࢥ࢔⢏ᚄࡸࢡࣛࢫࢱ࣮ᚄࢆไᚚࡋࡓ☢ᛶᚤ⢏Ꮚࢆྜᡂࡋࠊࡑࢀ
ࡽࡢ஺ὶ☢ሙ࡟ᑐࡍࡿᛂ⟅ࢆጞࡵ࡜ࡍࡿ☢Ẽ⦆࿴࡟㛵ࡍࡿ≉ᛶࢆィࡍࡿࠋࢡࣛࢫࢱ࣮ᵓ㐀ࢆᙧᡂࡍࡿࡇ࡜࡟ࡼࡿࠊ☢໬ᛂ⟅࡬ࡢᙳ㡪ࢆᐇ㦂ⓗ࡟ゎ᫂ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ
㸰㸬◊✲᪉ἲ ࢚ࢳࣞࣥࢢࣜࢥ࣮ࣝ⁐ᾮ୰ࡢሷ໬㕲 ,,, ࡛ࠊභỈ࿴≀࡜㓑㓟ࢼࢺ࣒ࣜ࢘ࢆΰྜࡋ࡚ & ୗ࡟⨨ࡃࡇ࡜࡛ࠊィᑐ㇟ࡢ࣓ࢰࢡࣜࢫࢱࣝᵓ㐀ࢆ᭷ࡍࡿ☢ᛶᚤ⢏Ꮚࢆྜᡂࡋࡓࠋᅗ  ࡣ࣓ࢰࢡࣜࢫࢱࣝᵓ㐀⢏Ꮚࡢ㉮ᰝ㟁Ꮚ㢧ᚤ㙾ീ࡛࠶ࡿࠋ
☢໬ᛂ⟅࡟ࡘ࠸࡚ࡣࠊ┤ὶ࠾ࡼࡧ஺ὶບ☢ୗ࡛ࡢ☢໬᭤⥺ࢆィࡋࡓࠋ┤ὶ☢໬᭤⥺ィ ࡟ࡣࠊ᣺ືヨᩱᆺ☢ຊィࢆ⏝࠸ࡓࠋ஺ὶ☢໬᭤⥺ࡣࠊ஺ὶບ☢ࢥ࢖ࣝࠊ☢ᛶᚤ⢏Ꮚ⏤᮶ࡢᅗ  ࣓ࢰࢡࣜࢫࢱࣝᵓ㐀ࡢ☢᮰᳨ฟ⏝ࢥ࢖ࣝࠊບ㉳☢ሙ⏤᮶ࡢ☢᮰࡟ࡼࡾ᳨ฟࢥ࢖ࣝ࡟

☢ᛶࢼࣀ⢏Ꮚ

Ⓨ⏕ࡍࡿㄏᑟ㉳㟁ຊࢆᡴࡕᾘࡍࡓࡵࡢ࢟ࣕࣥࢭࣝࢥ࢖ࣝ࠿
ࡽᵓᡂࡉࢀࡿࢥ࢖ࣝࢭࢵࢺࢆ⏝࠸ࡓ>@ࠋບ☢ࢥ࢖ࣝ࡟㟁ὶࢆ౪⤥ࡍࡿࡓࡵࡢ㟁※ࢆ᥋⥆ࡋࠊ᳨ฟࢥ࢖ࣝ࡟Ⓨ⏕ࡍࡿㄏᑟ㉳㟁ຊࢆ࢜ࢩࣟࢫࢥ࣮ࣉ࡛ほࡋࡓࠋ᭱኱࡛᣺ᖜ P7 ࡛࿘Ἴᩘ N+] ࡢ஺ὶບ☢ࢆྍ⬟࡛࠶ࡾࠊບ☢ࢥ࢖ࣝࡣỈ෭ࡍࡿࡇ࡜࡛ࢥ࢖ࣝෆ㒊ࡢィ

ヨᩱࡢ

ᗘࡀィ

୰࡟୍ᐃ࡟ಖࡓ

ࢀࡿࡼ࠺࡟ࡋࡓࠋ㸱㸬⤖ᯝ ᮏ◊✲࡛ࡣࠊ㞟ྜయ࡜ࡋ࡚  ȝP ⛬ᗘࡢ⢏ᚄࢆ᭷ࡍࡿ࣓ࢰ
ࢡࣜࢫࢱࣝᵓ㐀⢏Ꮚ࡜ࠊ༢⤖ᬗయ࡜ࡋ࡚  ȝP ⛬ᗘࡢ⢏ᚄࢆ᭷ࡍࡿ⢏Ꮚࢆẚ㍑ィ ࡋࡓࠋᅗ  ࡣࠊ᭱኱࡛ 7 ⛬ࡢ☢ሙ− 213 −ᅗ  ┤ὶ☢໬᭤⥺ᙉᗘ࡛ບ☢ࡋࡓ㝿ࡢ┤ὶ☢໬᭤⥺࡛࠶ࡿࠋࢢࣛࣇࡣࠊ㣬࿴☢໬࡛つ᱁໬ࡋࡓࡶࡢ࡛࠶ࡿࡀࠊᵓ㐀ࡢ␗࡞ࡿ  ࡘࡢ☢ᛶᚤ⢏Ꮚ࡟ࡘ࠸࡚ࠊ㢮ఝࡋࡓᴫᙧࡢ☢໬᭤⥺ࢆ☜ㄆࡋࡓࠋࡑࡢ୍᪉࡛ࠊ᭱኱ 
P7 ࡜࠸࠺ప☢ሙᇦ࡟࠾ࡅࡿ࣐࢖ࢼ࣮࣮ࣝࣉࡢィ࡛ࡣࠊ࣓ࢰࢡࣜࢫࢱࣝᵓ㐀ࡢ᪉ࡀࠊಖ☢ຊࡀ኱ࡁ࠸ࡇ࡜ࡶ☜ㄆࡉࢀ࡚࠸ࡿࡓࡵࠊ⢏Ꮚᵓ㐀࡟ࡼࡿᕪ␗ࡀ⾲ࢀࡓྍ⬟ᛶࡀ♧၀ࡉࢀࡿࠋ ஺ὶ☢Ẽ≉ᛶ࡟ࡘ࠸࡚ࠊ༢⤖ᬗ⢏Ꮚ࡜࣓ࢰࢡࣜࢫࢱࣝᵓ㐀ࡢ⢏Ꮚ࡛ࠊ㏆࠸ᴫᙧࢆ☜ㄆࡋࡓࡀ୍
᪉࡛ࠊಖ☢ຊࡣ┤ὶ☢ሙ࡛ࡢィ

࡜ྠᵝ࡟ࠊ࣓ࢰࢡࣜࢫࢱࣝᵓ㐀ࡢ᪉ࡀ኱ࡁࡃ࡞ࡗࡓࠋບ☢࿘Ἴᩘ࡟ᑐࡍࡿ᭱኱☢໬ࡸಖ☢ຊࡢ౫Ꮡᛶࡣࠊ ✀㢮ࡢ⢏Ꮚ㛫࡛ࠊ㢮ఝࡋࡓഴྥࢆ☜ㄆࡋࡓࠋ㸲㸬⤖ㄽ ᵓ㐀ࡢ␗࡞ࡿ☢ᛶᚤ⢏Ꮚ࡟ࡘ࠸࡚ࠊ┤ὶ࠾ࡼࡧ஺ὶ☢໬᭤⥺ࡢィࢆᐇ᪋ࡋࡓࠋ࣓ࢰࢡࣜࢫࢱ

ࣝᵓ㐀ࡢจ㞟య࡜ࡋ࡚ࡢ⢏ᚄࡀ༢⤖ᬗ⢏Ꮚ࡜ྠ⛬ᗘࡢሙྜࠊ ࡘࡢᵓ㐀㛫࡛☢໬᭤⥺࡟኱ᖜ࡞㝿ࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓ୍᪉࡛ࠊప☢ሙᇦ࡟࠾࠸࡚ࡣࠊಖ☢ຊࢆึࡵࠊ␗࡞ࡿ☢Ẽ≉ᛶࡶ☜ㄆࡉࢀࡓࠋ
௒ᚋࡣࠊࢥ࢔࡜࡞ࡿ⢏Ꮚᚄࡸจ㞟య࡜ࡋ࡚ࡢ⢏Ꮚᚄࡀ␗࡞ࡿ࣓ࢰࢡࣜࢫࢱࣝᵓ㐀ࡢ☢ᛶᚤ⢏Ꮚࢆྜᡂࡋ࡚ࠊ☢໬ᛂ⟅ࡢ⢏Ꮚᵓ㐀࡟ࡼࡿ౫Ꮡᛶࢆᐇ㦂ⓗ࡟ゎ᫂ࡍࡿࠋ
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㸦ඹྠ◊✲ศ㔝㸸ࢢ࣮ࣜࣥ㐀ᙧᏛศ㔝㸧− 214 −

࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚࡢ㟁Ꮚ㢧ᚤ㙾ほᐹ㸦୍㈈㸧ࣇ࢓࢖ࣥࢭ࣑ࣛࢵࢡࢫࢭࣥࢱ࣮ ࢼࣀᵓ㐀◊✲ᡤຍ⸨ ୔ᬕ
 ࡣࡌࡵ࡟ 㕲㓟໬≀ࡢ୍ࡘ࡜ࡋ࡚ྂࡃ࠿ࡽ▱ࡽࢀ࡚࠸ࡿ࣐ࢢࢿࢱ࢖ࢺ )H2 ࡣࠊඃࢀࡓ☢Ẽ≉ᛶ࡜⎔ቃ࡟ඃࡋ࠸≉ᛶࢆᣢࡘࡓࡵࠊ☢ᛶὶయࠊ☢Ẽ᳨▱ᮦᩱࠊゐ፹ᮦᩱ࡜ࡋ࡚ᗈࡃ฼⏝ࡉࢀࠊ⏘ᴗศ㔝ࠊ་⒪ศ
㔝࡛ࠊᗈࡃά⏝ࡉࢀ࡚࠸ࡿࠋᚤ⢊య࡜ࡋ࡚฼⏝ࡍࡿሙྜࠊᚤ⢊࡜ࡋ࡚┤᥋ྜᡂ࡛ࡁࡿ‵ᘧྜᡂἲࡣࠊ
⢊○࡜⢏ᗘไᚚࡀ୙せ࡛࠶ࡾࠊࢥࢫࢺ㠃࡛ࡶ᭷฼࡛࠶ࡿࠋࡉࡽ࡟ࠊ‵ᘧྜᡂ࡟㛵ࡍࡿሗ࿌ࡣከᩘ࠶
ࡾࠊ➼᪉ᛶࡢ❧᪉యࠊඵ㠃యࠊᅄ㠃యࠊ⌫య➼ࠊྜᡂ᮲௳ࡢໟᣓⓗ࡞◊✲࡟ࡼࡾࠊ⤖ᬗᡂ㛗࡟࠾ࡅࡿ⁐፹ࠊ᭷ᶵ⣔ຓ๣㸦⏺㠃άᛶ๣㸧ࡢᙳ㡪࡟㛵ࡍࡿヲ⣽࡞⪃ᐹࡀ⾜ࢃࢀ࡚࠸ࡿ  ࠋࡇࢀࡽࡢ◊✲࡟ᑐࡋࠊ㏆ᖺࠊ᭷ᶵ⣔ຓ๣ࢆ୍ษ⏝࠸ࡎ࡟‵ᘧྜᡂἲ࡟ࡼࡾ➼᪉ᛶᙧ≧㸦ᅗ  D ඵ㠃యᙧ≧ࠊE ⌫≧㸧ࡢ࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚࡢྜᡂ࡟ᡂຌࡋ࡚࠸ࡿࠋ୍᪉ࠊ㝹▼࡟ྵࡲࢀࡿ࣐ࢢࢿࢱ࢖ࢺ⢏ᏊࡣࠊᏱᐂ✵㛫࡛ᙧᡂࡉࢀࠊࡑࡢࡼ࠺࡞࣐ࢢࢿ
ࢱ࢖ࢺ⢏Ꮚࡢᙧᡂ࡟ࡣࠊỈศ࡜᭷ᶵ⣔ᮦᩱࡀᚲ㡲࡜ࡉࢀ࡚࠸ࡿ  ࠋࡋ࠿ࡋ࡞ࡀࡽࠊᏱᐂ✵㛫࡛ࡣ᭷ᶵᮦᩱࡀஈࡋ࠸⎔ቃ࡛࠶ࡾࠊỈศࡢࡳࡢྜᡂ᮲௳࡜㢮ఝࡋࡓ⎔ቃ࡛࠶ࡿྍ⬟ᛶࡀ࠶ࡿࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣࠊᏱᐂ
✵㛫࡛ᙧᡂࡉࢀࡓ࣐ࢢࢿࢱ࢖
ࢺ⢏Ꮚࡢᚤ⣽⤌⧊ࢆ᫂ࡽ࠿࡟ਦ  ༙‫ࡐঁܧؽ‬Ν࢘༽͢͵͏‵ᘧἲ࡛ྜᡂࡉࢀࡓ D ඵ㠃యࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ
࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚࠊ E ⌫≧࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚࠋ ᐇ㦂᪉ἲࢧࣥࣉࣝ࡜ࡋ࡚ࡣࠊ᥈ᰝᶵࠕࡣࡸࡪࡉ
ࠖࡀᑠᝨᫍࣜࣗ࢘ࢢ࢘࠿ࡽᅇ཰ࡋࡓヨᩱ㸦◁⢏㸧࡟ྵࡲࢀࡿ࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚࢆᑐ㇟࡜ࡋࡓࠋ኱Ẽ㠀ᭀ㟢࡛㞟᮰࢖࢜ࣥࣅ
࣮࣒⿦⨨㸦᪥❧ 1%㸧ࢆ⏝࠸࡚㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾 7(0 ヨᩱ⏝࡟ⷧ∦ヨᩱ࡟௙ୖࡆࠊ኱Ẽ㠀ᭀ㟢ᦙ㏦࡟ࡼࡾࠊ᪥❧〇 +)
 ࡟ᤄධࡋࠊ㟁Ꮚ⥺࣍ࣟࢢࣛࣇ࢕࣮ἲ
࡟ࡼࡾ࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚࡢ☢ᛶホ౯ࢆ⾜ࡗࡓࠋࡑࡢᚋࠊ኱Ẽ㠀ᭀ㟢࡛ࠊ᪥ᮏ㟁Ꮚ〇 -(0) ࡟ᦙ㏦ࡋࠊ㏻ᖖࡢ 7(0 ほᐹࠊ࢚ࢿࣝࢠ࣮ศᩓ ; ⥺ศග ('6 ศᯒࢆᐇ᪋ࡋࡓࠋ
 ⤖ᯝᅗ  ࡟ᑠᝨᫍࣜࣗ࢘ࢢ࢘࠿ࡽᅇ཰࡛ࡁ
ࡓ࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚࡢ㉮ᰝ࢖࢜ࣥ㢧ᚤ㙾 ਦ  ঘ࿯੗ϨϣΤήΤ͖ΔյफͲͪ͘‫ځ‬য়Ϝήϋνീࢆ♧ࡍࠋከᩘࡢ⌫≧࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚ΢φཽࢢɽ
ࡀ☜ㄆ࡛ࡁࠊ⢏Ꮚᚄࡣ 㹼 ȝP ࡛ࠊᅗ E ࡟♧ࡍ᭷ᶵ⣔ຓ๣ࢆྵࡲ࡞࠸‵ᘧྜᡂἲ࡟ࡼࡾᙧᡂࡉࢀࡓ⢏Ꮚᙧ≧࠾ࡼࡧ኱ࡁࡉࡀ㢮ఝࡋ࡚࠸ࡿࠋࡇࡢࡼ࠺࡞࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚࡢ᩿㠃 7(0 ീࢆᅗ  D ࡟♧ࡍࠋࡉࡽ࡟ࠊᅗ  D ࡛☜ㄆ࡛ࡁࡓ࣐ࢢ
ࢿࢱ࢖ࢺ⢏Ꮚ ,㹼9 ࠾ࡼࡧ 9, ࡟ᑐᛂࡍࡿ㟁Ꮚᅇᢡᅗᙧ࠾ࡼࡧྛᅇᢡᩬⅬࡢ㠃ᣦᩘࠊ㟁Ꮚ⥺ධᑕ᪉ྥࢆᅗ  L 㹼 Y ࠾ࡼࡧ YL ࡟♧ࡍࠋࡇࢀࡽ࡟ຍ࠼ࠊᅗ  D ࡢ㡿ᇦ࡟ᑐᛂࡍࡿ ('6 ࡟ࡼࡿ )Hࠊ2ࠊ6Lࠊ
0Jࠊ$O ࣐ࢵࣉ࡜㉮ᰝ㏱㐣㟁Ꮚ㢧ᚤ㙾ほᐹ࡟ࡼࡿ⎔≧ᬯど㔝 $') ീࢆᅗ  ࡟♧ࡍࠋࡇࢀࡽࡢ⤖ᯝ࠿− 215 −

ࡽࠊ⌫≧⢏Ꮚࡣ༢⤖ᬗࡢ࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚ࡛࠶ࡾࠊᒙ≧⌛㓟ሷୖ࡟ศᕸࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
ࡉࡽ࡟ࠊ㟁Ꮚ⥺࣍ࣟࢢࣛࣇ࢕࣮࡟ࡼࡿ☢ሙศᕸホ౯ࢆᅗ  D ࠊ E ࡟♧ࡍࠋᅗ  D ࠊ E ࡣᅗ  D ࡢ◚⥺ᯟ $ࠊ% ࡟ᑐᛂࡍࡿࠋ࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚෆ㒊ࡢ☢ሙศᕸ࡜ࠊ࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚ࠿ࡽእ㒊࡟₃ࢀฟ
ࡓ☢ሙࢆྍど໬ࡍࡿࡇ࡜ࡀ࡛ࡁࡓ  ࠋ㸬௒ᚋࡢ᪉㔪 Ᏹᐂ✵㛫࡛ᙧᡂࡉࢀࡓ࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚ࡜᭷ᶵ⣔ຓ๣ࢆ୍ษ⏝࠸ࡎ࡟‵ᘧἲ࡟ࡼࡾྜᡂࡉࢀࡓ
࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚ࡜ࡢᚤ⣽ᵓ㐀ࢆẚ㍑ࡍࡿࠋࡲࡓࠊ␗࡞ࡿ᮲௳࡛ྜᡂࡉࢀࡓ‵ᘧἲࡢ࣐ࢢࢿࢱ࢖ࢺ
⢏Ꮚࢆ」ᩘほᐹࡍࡿࡇ࡜࡟ࡼࡾࠊࡑࡢᙧᡂ࣓࢝ࢽࢬ࣒࡟㛵ࡍࡿ▱ぢࢆᚓࡿࠋ
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ࣥࣉࣛࢵࢺࣇ࢛࣮࣒ࠖ
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ਦ  ਦ  D ͶଲԢͤΖ ('6 ͶΓΖ )Hɼ2ɼ6Lɼ0Jɼ
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 ਦ  D  ᑠᝨᫍࣜࣗ࢘ࢢ࢘࠿ࡽᅇ཰࡛ ࡁࡓ࣐ࢢࢿࢱ࢖ࢺ⢏Ꮚࡢ᩿㠃 7(0 ീࠋ L 㹼 YL ࡣ D ࡢ , ࠿ࡽ 9, ࡟ᑐᛂࡍࡿ㟁 Ꮚᅇᢡᅗᙧࠋ㠃ᣦᩘ࡜㟁Ꮚ⥺ධᑕ᪉ྥ ࢆグ㍕ࠋਦ  ుࢢતϙϫήϧϓΡʖͶΓΖϜήϋν΢φཽࢢ͹ࣕ৖෾ා඲Ճ݃Վɽ D ɼ E ͺਦ  D ͹ $ɼ% ഃત࿰ͳଲԢɽʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁήϨʖϱଆ‫ָܙ‬෾໼ʥ− 216 −

ZrO2/WO3 ࢼࣀࢥ࣏ࣥࢪࢵࢺ࡬ࡢ CuO ࡢᢸᣢࡀගゐ፹άᛶ࡟ཬࡰࡍᙳ㡪          ⩌㤿኱Ꮫ኱Ꮫ㝔⌮ᕤᏛᗓ      బ⸨ ࿴ዲ㸯㸬⥴ゝගゐ፹ࡣࠊࡑࡢࣂࣥࢻࢠࣕࢵࣉ࡟ᛂࡌࡓἼ㛗ࡢගࢆ྾཰ࡋࠊࡇࢀ࡟ࡼࡾ⏕ᡂࡍࡿ࣮࣍ࣝ࡜ບ㉳㟁Ꮚ࡟㉳ᅉࡍࡿࣛࢪ࢝ࣝ࡞࡝ࡢάᛶ✀࡟ࡼࡗ࡚᥹Ⓨᛶ᭷ᶵ໬໬ྜ≀(VOC)➼ࢆศゎ㝖ཤ࡛ࡁࡿࠋ௦⾲ⓗ࡞ගゐ፹࡜ࡋ࡚࢔ࢼࢱ
࣮ࢮᆺࡢ㓟໬ࢳࢱࣥࡀᣲࡆࡽࢀࠊࡑࡢ㧗࠸ගゐ፹άᛶ࠿ࡽࠊί໬ࡸ㜵ởࠊᢠ⳦࡞࡝࡟ᖜᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿࠋ
୍᪉ࠊࡇࡢ㧗࠸άᛶࡢ※࡜࡞ࡿࣂࣥࢻࢠࣕࢵࣉ࢚ࢿࣝࢠ࣮ࡣ 3.2 eV ࡜኱ࡁࡃࠊບ㉳࡟ࡣ⣸እගࡀᚲ㡲࡛࠶ࡾࠊᒇෆ࡛ࡢ౑⏝ࡣᅔ㞴࡛࠶ࡿࠋ㓟໬ࢱࣥࢢࢫࢸࣥ(WO3)ࡣ LED ➼ࡢྍどග↷ᑕୗ࡛᥹Ⓨᛶ᭷ᶵ໬ྜ≀(VOC)ࡢศ
ゎ㝖ཤࡀྍ⬟࡞ྍどගᛂ⟅ᆺගゐ፹࡛࠶ࡿࠋࡓࡔࡋࠊWO3 ༢య࡛ࡣ࢝ࣝ࣎ࣥ㓟࡞࡝ࡢ᏶඲㝖ཤࡀᅔ㞴࡛࠶ࡿࡓࡵࠊάᛶࢧ࢖ࢺ࡟ᮍศゎ≀㉁ࡀ྾╔ࡋ࡚ᚎࠎ࡟ኻάࡍࡿࠋࡑࡇ࡛ࠊ␗✀㓟໬≀ࢆῧຍࡋࠊWO3 ࡢගゐ፹άᛶࡢపୗࢆᢚไࡍࡿヨࡳࡀ⾜ࢃࢀ࡚࠸ࡿࠋ[1] ᭱㏆ࠊᡃࠎࡣࠊWO3 ࢼࣀ⢏Ꮚ࡟✀ࠎࡢ 4 ౯㔠ᒓ㓟໬≀ࢼࣀ⤖ᬗࢆᢸᣢࡋࡓ」ྜయࢆㄪ〇ࡋࠊ࢔ࢭࢺ࢔ࣝࢹࣄࢻࡢගゐ፹άᛶࢆホ౯ࡋࡓ࡜ࡇࢁࠊ≉࡟ ZrO2 ࡜ HfO2 ࡀ WO3 ࡟ࡼࡿ࢔ࢭࢺ࢔ࣝࢹࣄࢻࡢศゎάᛶࢆಁ㐍ࡍࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋ୍᪉ࠊศゎᣲືࡢࡇࢀࡽࡢ㓟໬≀ࡢ⾲㠃✚౫Ꮡᛶࡼࡾࠊࡇࢀࡽࡢ㓟໬≀ࡣࠊ୰㛫⏕ᡂ≀࡛࠶ࡿ㓑㓟ࢆ྾╔ࡋࠊ୍᫬ⓗ࡟ WO3 ⾲㠃ࡢάᛶⅬࡢ㛤ᨺ࡟ᐤ୚ࡍࡿࡶ
ࡢࡢࠊ㓑㓟ࡢศゎࡑࡢࡶࡢࡣಁ㐍ࡋ࡚࠸࡞࠸ࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ[2]ࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ㓑㓟ࡢศゎάᛶࢆ᭷ࡍ
ࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠸ࡿ㓟໬㖡(CuO)[3]ࢆ ZrO2/WO3 ࡢࢼࣀࢥ࣏ࣥࢪࢵࢺ࡟ᢸᣢࡋࠊࡑࡢᢸᣢ㔞ࡸᢸᣢ≧ែࡀගゐ፹άᛶ࡟ཬࡰࡍᙳ㡪ࢆホ౯ࡋࡓࠋԥG㸰㸬ᐇ㦂᪉ἲ
ࢱࣥࢢࢫࢸࣥ᭷ᶵ㘒యࢆ 550 ºC ࡛ 6 h ⇕ฎ =U2 ψό݃ধ෾ࢆӹ⌮ࡋ࡚ྜᡂࡋࡓ WO3 ࢼࣀ⢏Ꮚࠊ◪㓟㖡࣭୕Ỉ
&X 12  ਭ༻ӹ࿴≀ࢆ 400 ºC ࡛ 2 h ⇕ฎ⌮ࡋ࡚ྜᡂࡋࡓ CuO
4ʌr
ʌr2ıSL֩፫⢏Ꮚ࠾ࡼࡧᕷ㈍ࡢ ZrO2 ⢏Ꮚ(TZ-0 , ᮾࢯ࣮)ࢆ
⏝࠸ࠊࡇࢀࡽࢆங㖊࡛ΰྜࡋ࡚ࠊCuO ྵ᭷㔞ࡀ 0㹼1.0 wt%ࡢ ZrO2/WO3 ගゐ፹⢏Ꮚࢆᚓࡓࠋ
ࡲࡓࠊᅗ 1 ࡟♧ࡍᡭ㡰࡛ ZrO2 ࢼࣀ⤖ᬗࢆ⏝࠸‫ף‬૫
4ʌr3G /3
ࡓ CuO@ZrO2/WO3 ࢼࣀࢥ࣏ࣥࢪࢵࢺගゐ፹೦ॴཀྵ ˈK
ࡶྜᡂࡋࡓࠋࡲࡎࠊሷᇶᛶࡢ ZrO2 ࢼࣀ⤖ᬗศᩓᾮ࡟◪㓟㖡Ỉ⁐ᾮࢆຍ࠼࡚୙ᆒ୍᰾⏕ᡂࢆ&X2ˑ=U2ψό݃ধㄏᑟࡍࡿࡇ࡜࡟ࡼࡾࠊCu(OH)2 ࢆ ZrO2 ࢼࣀ⤖ᬗ⾲㠃࡟㑅ᢥⓗ࡟ᢸᣢࡋࠊࡇࢀࢆὙίࠊ஝⇱
ᚋ࡟ 400ႏ࡛ 2h ⇕ฎ⌮ࡋ࡚ CuO@ZrO2 ࢼࣀࢥ࣏ࣥࢪࢵࢺ⢏Ꮚࢆస〇ࡋࡓࠋḟ࡟ࠊᚓࡽࢀ
ࡓ CuO@ZrO2 ࢼࣀࢥ࣏ࣥࢪࢵࢺ⢏Ꮚࢆ WO3
࡜ඹ࡟ங㖊࡛ΰྜࡍࡿࡇ࡜࡟ࡼࡾࠊ
Figure 1 Growth scheme of CuO@ZrO2/WO3 nanocomposite
CuO@ZrO2/WO3 ࢼࣀࢥ࣏ࣥࢪࢵࢺࢆᚓࡓࠋ
ගゐ፹άᛶホ౯࡟ࡣࠊࢫࣛ࢖ࢻࢢࣛࢫ࡟
photocatalyst
50 mg ࡢゐ፹ࢫ࣮ࣛࣜࢆሬᕸࡋ஝⇱ᅛ╔ࡉࡏࡓࡶࡢࢆ⏝࠸ࡓࠋྛヨᩱࢆࢸࢻ࣮ࣛࣂࢵࢢ࡟ᑒධࡋࠊ␲ఝ஝⇱✵Ẽ࡛‶ࡓࡋࡓᚋࠊࢸࢻ࣮ࣛࣂࢵࢢෆࡢ࢔ࢭ
ࢺ࢔ࣝࢹࣄࢻ(CH3CHO)⃰ᗘࡀ 10ppm ࡟࡞ࡿࡼ࠺࡟ࢩࣜࣥࢪ࡛ὀධࡋ࡚ヨ㦂࡟౪ࡋࡓࠋගゐ፹άᛶホ౯ࡣᬯᐊ࡟࡚ 7000lx ࡢⓑⰍගࢆ LED ࣛ࢖ࢺ࡛ヨᩱ࡟↷ᑕࡋ࡚⾜ࡗࡓࠋάᛶホ౯ヨ㦂୰ࠊ୍ᐃ᫬㛫ࡈ࡜࡟ࢸࢻ࣮ࣛࣂࢵ
ࢢෆࡢ࢞ࢫࢆศྲྀࡋࠊCH3CHO ࡢ⃰ᗘࢆ᳨▱⟶࡟ࡼࡾᐃ㔞ࡋࡓࠋ㸱㸬⤖ᯝ࡜⪃ᐹᅗ 2 ࡟ WO3 ࠾ࡼࡧ CuO ᢸᣢ㔞ࡢ␗࡞ࡿ ZrO2/WO3 ගゐ፹ࡢ CH3CHO ศゎᣲືࢆ♧ࡍࠋCuO ᢸᣢ㔞ࡀ 0㹼
0.3 wt%ࡢ ZrO2/WO3 ࡛ࡣࠊWO3 ༢య࡟ẚ࡭࡚㧗࠸ゐ፹άᛶࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋࡓࡔࡋࠊ60 ศ⤒㐣ᚋ࡟࠾࠸࡚ࡶࠊCH3CHO ࡣṧ␃ࡋ࡚࠾ࡾࠊ᏶඲ศゎ࡟ࡣ⮳ࡗ࡚࠸࡞࠸ࠋࡲࡓࠊ཯ᛂ㛤ጞึᮇ࡟࠾ࡅࡿྛゐ፹ࡢ
CH3CHO ศゎ㏿ᗘࡣࠊZrO2/WO3 ࡜ẚ㍑ࡋ࡚ࠊCuO ᢸᣢ㔞ࡀ 0.08 ࠾ࡼࡧ 0.3 wt%࡟࠾࠸࡚ഹ࠿࡟㧗࠸್ࢆ♧ࡍ
ࡶࡢࡢࠊWO3 ࡟ ZrO2 ࢆῧຍࡋࡓሙྜ࡯࡝ࡢ๻ⓗ࡞ຠᯝࡣㄆࡵࡽࢀ࡞࠿ࡗࡓࠋ

− 217 −

100:2=U2:2
 ZW&X2=U2:2 ZW&X2=U2:2 ZW&X2=U2:2 ZW&X2=U2:2 ZW&X2=U2:2

5HVLGXDO&+&+2

80
60
40
20
0

સͱ෼ཀྵࠠ߻඾
0

10

20

30

40

50

Irradiation time / min60

Figure 2 Decomposition behavior of CH3CHO by CuO
loaded ZrO2/WO3 photocatalysts

100

Residual CH3CHO /% CuO ࡢῧຍ࡟ࡼࡾ CH3CHO ศゎάᛶࡀ࠶ࡲࡾ
ྥୖࡋ࡞࠿ࡗࡓཎᅉ࡜ࡋ࡚ࠊWO3 ⾲㠃࡟࠾ࡅࡿ
CH3CHO ࡢศゎ࡟ࡼࡿ㓑㓟ࡢ⏕ᡂ࡜ࠊࡑࡢ ZrO2
⾲㠃࡬ࡢ྾╔ࡣ㎿㏿࡟㐍⾜ࡍࡿࡶࡢࡢࠊ༢࡟≀⌮ΰྜࡋࡓࡔࡅ࡛ࡣ CuO ࡜ ZrO2 ⾲㠃ࡢ㓑㓟࡜ࡢ఍ྜࡀ࡯࡜ࢇ࡝㉳ࡇࡽࡎࠊࡑࡢᚋࡢ㓑㓟ࡢศゎࡀ࡯࡜ࢇ࡝㉳ࡇࡽ࡞࠿ࡗࡓࡇ࡜ࡀ⪃࠼ࡽࢀ
ࡿࠋ30 ศ௨㝆ࡢ CH3CHO ࡢศゎࡀ࡯ࡰᖹ⾮࡟㐩ࡋ࡚࠸ࡿࡇ࡜ࡶࡇࡢ⪃ᐹࢆᨭᣢࡋ࡚࠸ࡿࠋ
 ᅗ 3 ࡟ CuO@ZrO2/WO3 ࢼࣀࢥ࣏ࣥࢪࢵࢺࡢ
CH3CHO ศゎᣲື࠾ࡼࡧࠊWO3 ࡞ࡽࡧ࡟ᅗ 2 ࡟࠾ ࠸ ࡚ ᭱ ࡶ 㧗 ࠸ ά ᛶ ࢆ ♧ ࡋ ࡓ
0.08wt%CuO/ZrO2/WO3 ࡜ ࡢ ẚ ㍑ ࢆ ♧ ࡍ ࠋ
CuO@ZrO2/WO3
ࡢ ึ ᮇ ά ᛶ ࡣ
0.08wt%CuO/ZrO2/WO3 ࡜ྠ⛬ᗘ࡛࠶ࡗࡓࡀࠊ30ศ௨㝆ࡶ CH3CHO ࡢศゎࡣ⥅⥆ࡋࠊ60min ࡛᏶඲ศゎ࡟⮳ࡗࡓࠋࡇࡢࡇ࡜࠿ࡽࠊCuO ࢆ ZrO2 ࢼࣀ⤖ᬗ⾲㠃࡟㑅ᢥⓗ࡟ᆒ୍ศᩓᢸᣢࡉࡏࡿࡇ࡜
࡟ࡼࡾࠊZrO2 ⾲㠃࡟྾╔ࡋࡓ㓑㓟ࡢ CuO ࡟ࡼࡿศゎࡀᣢ⥆ⓗ࡟⏕ࡌࠊWO3 ⾲㠃ࡢάᛶࢧ࢖ࢺࡀゎᨺࡉࢀࡿࡇ࡜ࡀ♧၀ࡉࢀࡿࠋ㸲㸬ࡲ࡜ࡵ
 ZrO2/WO3 ගゐ፹࡟ࡼࡿ CH3CHO ࡢศゎ࡟࠾ࡅ
ࡿ CuO ࡢᢸᣢຠᯝࢆㄪᰝࡋࠊCuOࠊZrO2 ࠾ࡼࡧ
WO3 ࡢ఩⨨㛵ಀࡀ㔜せ࡞ᙺ๭ࢆᯝࡓࡋࠊCuO ࢆ
ZrO2 ⾲㠃࡟㑅ᢥⓗ࠿ࡘᆒ୍࡟ᢸᣢࡋࡓሙྜࠊ
CH3CHO ࡢศゎάᛶࡀᣢ⥆ࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡜
࡞ࡗࡓࠋࡇࢀࡣࠊWO3ࠊZrO2 ࠾ࡼࡧ CuO ࡀࠊ
CH3CHO ࡢ㏲ḟศゎ཯ᛂ࡟࠾࠸࡚ࠊࡑࢀࡒࢀࠊ
CH3CHO ࡢ ศ ゎ ࠊ CH3COOH ࡢ ྾ ╔ ࠾ ࡼ ࡧ
CH3COOH ࡢศゎࡢᙺ๭ࢆᢸࡗ࡚࠸ࡿࡇ࡜ࢆᙉ
ࡃ♧၀ࡋ࡚࠸ࡿࠋཧ⪃ᩥ⊩[1] D. Fukushi et al., Bull. Chem. Soc. Jpn., 2017, 90,
885-892[2] బ⸨ ࿴ዲࡽ, ᪥ᮏࢭ࣑ࣛࢵࢡࢫ༠఍ ➨ 35 ᅇ⛅Ꮨࢩ࣏ࣥࢪ࣒࢘ண✏㞟[3] T. Arai et al., Catal. Commun., 2008, 9, 1254-1258

80
60

ID

SSABET/ m2ʀg-1

ZrO2

21

ZrO2ψό݃ধ

256

WO3

40

0.08wt%CuO/ZrO2/WO3

20
0 0

CuOˑZrO2/WO3

10

20

30

40

Irradiation time / min

50

60

Figure 3 Comparisons of CH3CHO decomposition(ඹྠ◊✲ศ㔝㸸ࢢ࣮ࣜࣥ㐀ᙧᏛศ㔝)− 218 −

behavior of CuO@ZrO2/WO3 nanocomposite
with pristine WO3 and mechanically mixed
0.08wt%CuO/ZrO2/WO3

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1L0Q2QDQRSDUWLFOHVYLDDVLPSOHFLWULFDFLGPHWKRG-&HUDP6RF-SQ>@  

KWWSGRLRUJMFHUVM  㸦ඹྠ◊✲ศ㔝㸸ࢢ࣮ࣜࣥ㐀ᙧᏛศ㔝㸧− 220 −

㓟໬㕲ࢼࣀ⢏Ꮚ」ྜᵓ㐀ࡢࢢࣜࢥࢧ࣮࣐ࣝྜᡂ
ྡྂᒇ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉㧘ぢㄔ୍㸯㸬┠ⓗ
㔠ᒓ㓟໬≀ࢼࣀ⢏Ꮚࡣࠊゐ፹≉ᛶࡸ☢ᛶ࡞࡝ᵝࠎ࡞≀ᛶࢆ♧ࡍࠋ୰࡛ࡶ☢ᛶࢆ♧ࡍ )H2 ࢼࣀ⢏Ꮚࡣࠊ㧗࠸Ᏻ඲ᛶࡸࢥࢫࢺ࡞࡝ࡢほⅬ࠿ࡽከࡃࡢ◊✲ࡀ⾜ࢃࢀ࡚ࡁࡓࠋࡑࡢྜᡂ᪉ἲ࡟ࡣࠊỈ⇕ྜᡂἲࠊࢰࣝࢤࣝ
ἲࠊࢯࣝ࣎ࢧ࣮࣐ࣝἲ࡞࡝ࡀᏑᅾࡍࡿࡀࠊࢯࣝ࣎ࢧ࣮࣐ࣝἲࡢ㸯ࡘ࡛࠶ࡿࢢࣜࢥࢧ࣮࣐ࣝἲࡣࠊΥ࡛ࡶ Ẽᅽ⛬ᗘ࡜⵨Ẽᅽࡀప࠸࢚ࢳࣞࣥࢢࣜࢥ࣮ࣝࢆ⁐፹࡜ࡍࡿࡇ࡜࡛ࠊᏳ඲࡟ཎᩱ໬ྜ≀ࢆຍ⇕ࡋ࡚㔠ᒓ㓟໬≀࡞࡝ࢆ⏕ᡂࡍࡿᡭἲ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊࢢࣜࢥࢧ࣮࣐ࣝἲࢆ⏝࠸࡚ )H2 ࢼࣀ⢏Ꮚࡢ㞟✚ᵓ㐀ࡢྜᡂࢆ⾜࠸ࠊ⁐፹࡟ῧຍࡍࡿỈࡀ㞟✚ᵓ㐀࡟୚࠼ࡿᙳ㡪ࢆホ౯ࡋࡓࠋ
㸰㸬ᐇ㦂᪉ἲ
ᮏ◊✲࡛ࡣࠊ࢚ࢳࣞࣥࢢࣜࢥ࣮ࣝ୰࡟ሷ໬㕲 Ϫ භỈ࿴≀ࢆ⁐ゎࡉࡏࠊࡇࡢ⁐ᾮࢆຍ⇕ࡍࡿࡇ࡜࡛㓟໬㕲ࢼࣀ⢏Ꮚࡢ」ྜᵓ㐀ࡢྜᡂࢆヨࡳࡓࠋලయⓗ࡟ࡣࠊ࢚ࢳࣞࣥࢢࣜࢥ࣮ࣝ㸦(*㸧ࢆ⁐፹࡜ࡋࠊ0 ࡢ )H&O࣭
+2 ⁐ᾮ  P/ ࡟Ỉࢆῧຍࡋࡓࡶࡢ࡜  0 ࡢ㓑㓟࣒࢝ࣜ࢘⁐ᾮ  P/ ࢆㄪ〇ࡋࠊࡇࢀࡽࢆΰྜࡋ࡚๓
㥑య⁐ᾮࢆ‽ഛࡋࡓࠋࡇࡢ๓㥑య⁐ᾮࢆຍ⇕཯ᛂᐜჾ࡟ධࢀࠊ ΥaK ࡢ᮲௳࡛ࢢࣜࢥࢧ࣮࣐ࣝྜᡂ
ࡋࠊᐊࡲ࡛⮬↛✵෭ࡋࡓࠋῧຍࡋࡓỈࡢ㔞ࡣࠊP/ ࡜ࡋࡓࠋ⏕ᡂ≀ࢆᅇ཰ࡋࠊ㐲ᚰศ㞳ᶵࢆ⏝࠸࡚⢭〇ᚋࠊ; ⥺ᅇᢡἲ㸦;5'㸧࠾ࡼࡧ㉮ᰝ㟁Ꮚ㢧ᚤ㙾㸦6(0㸧ࢆ⏝࠸࡚⤖ᬗᵓ㐀࠾ࡼࡧ⏕ᡂ≀ࡢᵓ㐀ࢆホ౯ࡋࡓࠋ
㸱㸬⤖ᯝ
ྜᡂᗘࢆ  Υࠊຍ࠼ࡓỈࡢ㔞ࢆ  ࠾ࡼࡧ  P/ ࡜ࡋ࡚ᚓࡽࢀࡓ⏕ᡂ≀ࡢ ;5' ࣃࢱ࣮ࣥࢆᅗ  ࡟

♧ࡍࠋ
E

D


ᅗ  D +2 P/ E +2 P/ ࡢ᮲௳࡛ྜᡂࡋࡓ⏕ᡂ≀ࡢ ;5' ࣃࢱ࣮ࣥ
ῧຍࡋࡓỈࡢ㔞ࡀ  ཬࡧ  P/ ࡛ࡣྜᡂ᫬㛫  K ௨ୖ࡛ )H2 ࡢ⏕ᡂࡀ☜ㄆ࡛ࡁࠊ๪⏕ᡂ≀࡞࡝௚ࡢࣆ࣮ࢡࡣぢࡽࢀ࡞࠿ࡗࡓࠋ୍᪉ࠊྜᡂ᫬㛫 K ࡛ࡣ )H2 ௨እࡢࣆ࣮ࢡࡶぢࡽࢀࡓࠋࡇࢀࡣࠊ཯ᛂ୰㛫యࡢࣆ࣮ࢡ࡛࠶ࡿ࡜⪃࠼ࡿࠋ⥆࠸࡚ࠊ㞟✚ᵓ㐀ࡢࢧ࢖ࢬཬࡧᙧ≧ࢆホ౯ࡍࡿࡓࡵࠊྛྜᡂ᮲௳࡛ᚓࡽࢀࡓ⏕ᡂ≀ࢆ 6(0 ࡛ほᐹࡋࡓࠋྜᡂ᫬㛫࠾ࡼࡧῧຍࡋࡓỈࡢ㔞ࡈ࡜࡟ࡲ࡜ࡵࡓ⏕ᡂ≀ࡢ 6(0 ⏬ീࢆᅗ  ࡟♧ࡍࠋ− 221 −ᅗ  ⏕ᡂࡋࡓ )H2 」ྜᵓ㐀ࡢ 6(0 ീῧຍࡋࡓỈࡢ㔞ࡀ  ཬࡧ P/ ࡢሙྜࠊ࡝ࡢྜᡂ᫬㛫࡛ࡶ ;5' ࡼࡾホ౯ࡉࢀࡓ୍ḟ⢏Ꮚᚄࢆ㉸࠼ࡿ
ᩘⓒ QP ௨ୖࡢ⌫≧⏕ᡂ≀ࡀぢࡽࢀࠊ㞟✚ᵓ㐀ࡀᙧᡂࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋࡑࡢ୰࡛ࠊྜᡂ᫬㛫ࡀ▷࠸࡜ࡁࡣࢧ࢖ࢬࡢ኱ࡁ࠸⌫≧⏕ᡂ≀࡜ᑠࡉ࠸⌫≧⏕ᡂ≀ࡀΰᅾࡋ࡚࠾ࡾࠊ㞟✚ᵓ㐀ࡢࢧ࢖ࢬࡀ୙ᆒ୍࡛࠶
ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋ୍᪉ࠊྜᡂ᫬㛫ࢆ㛗ࡃࡍࡿ࡜ࠊ㞟✚ᵓ㐀ࡢᡂ㛗࡜ඹ࡟୍㒊ࡢ᮲௳࡛ࡣ㞟✚ᵓ㐀ࢧ࢖ࢬࡢᆒ୍໬ࡀ㐍ࢇࡔࠋῧຍࡋࡓỈࡢ㔞ࡀ  P/ ࡛ࡶ㞟✚ᵓ㐀ࡢᙧᡂࡀ☜ㄆ࡛ࡁࡓ୍᪉࡛ࠊ P/ ࡛ࡣ㞟✚ᵓ㐀ࡀᙧᡂࡉࢀࡎࠊ≉࡟  K ࡛ࡣ )H2 ࡀ⏕ᡂࡋ࡚࠸࡞࠿ࡗࡓࠋῧຍࡋࡓỈࡢ㔞ࡀ  ཬࡧ  P/ ࡛ࡣ཯ᛂ᫬㛫ࡀ  K ࡢ᫬Ⅼ࡛㞟✚ᵓ㐀ࡀ୙ᆒ୍࡛࠶ࡗࡓࡢ࡟ᑐࡋࠊ P/ ࡛ࡣᆒ୍࡛࠶ࡗࡓࠋࡉࡽ࡟ࠊྜᡂ᫬㛫ࡀ㛗ࡃ࡞ࡿ࡜࡜ࡶ࡟
ᆒ୍࡞ࡲࡲ㞟✚ᵓ㐀ࢧ࢖ࢬࡀࢃࡎ࠿࡟ቑຍࡋࡓࡇ࡜ࠋࡇࢀࡽࡣࠊ)H2 ࡢ  ḟ⢏Ꮚࡢ⏕ᡂ࡜㞟✚ᵓ㐀ࡢᙧᡂ࣭෌ᵓᡂࡀ␗࡞ࡿ᫬㛫ࢫࢣ࣮࡛ࣝ㐍⾜ࡍࡿࡇ࡜ࢆ♧၀ࡋ࡚࠾ࡾࠊ௒ᚋ᳨ウࢆ㐍ࡵࡿࠋ㸲㸬⤖ㄽ
ᮏ◊✲࡛ࡣࠊ)H2 㓟໬㕲ࢼࣀ⢏Ꮚ」ྜᵓ㐀ࡢࢢࣜࢥࢧ࣮࣐ࣝྜᡂ㐣⛬࡟࠾࠸࡚ࠊῧຍࡍࡿỈࡢ㔞࠾ࡼࡧྜᡂ᫬㛫ࡀ」ྜᵓ㐀࡟ᙳ㡪ࢆ୚࠼ࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡍࡿ࡜࡜ࡶ࡟ࠊࡑࡢ࣓࢝ࢽࢬ࣒࡟ࡘ࠸࡚⪃ᐹࢆ⾜ࡗࡓࠋ㸳㸬ཧ⪃ᩥ⊩   +$EH71DND.6DWR<6X]XNL01DNDQR´6KDSH&RQWUROOHG6\QWKHVHVRI0DJQHWLWH0LFURSDUWLFOHVDQG
7KHLU0DJQHWRUKHRORJ\´,QWHUQDWLRQDO-RXUQDORI0ROHFXODU6FLHQFHV9RO  㸦ඹྠ◊✲ศ㔝㸸ࢢ࣮ࣜࣥ㐀ᙧᏛศ㔝㸧− 222 −

⎔ቃ࡟ඃࡋ࠸ࢼࣀ࣭࣐࢖ࢡࣟ⢏Ꮚࡢᾮ┦ྜᡂỈ⁐ᾮ࠿ࡽࡢࣁ࢖ࢻࣟ࢟ࢩ࢔ࣃࢱ࢖ࢺ⢏Ꮚᙧᡂࣉࣟࢭࢫ࡟㛵ࡍࡿ◊✲༓ⴥ኱Ꮫ኱Ꮫ㝔⌮Ꮫ◊✲㝔࣭⼥ྜ⌮ᕤᏛᗓ἟Ꮚ ༓ᘺࠊ∾㔝ෆ ຾༤ࠊ㛫㔝 ඞ⣖㸯㸬┠ⓗ   ࢝ࣝࢩ࣒࢘ࡣᚲ㡲ඖ⣲ࡢ୰࡛ࡶⅣ㓟ሷࡸࣜࣥ㓟ሷࡢ⁐ゎᗘࡀపࡃࠊ⏕≀ࡢయࡢ࡞࠿࡛◳⤌⧊໬ࡋࡸࡍ࠸ᛶ㉁ࢆ
ࡶࡗ࡚࠾ࡾࠊ㦵ࡸṑࠊ㈅Ẇࠊ༸ࡢẆ࡞࡝ࡢ⏕య㖔≀ࡢ࡯ࡰ㸷๭ࡀⅣ㓟࢝ࣝࢩ࣒࣭࢘ࣜࣥ㓟࢝ࣝࢩ࣒࢘࡞࡝ࡢ࢝ࣝࢩ
࣒࢘ሷ࡛࠶ࡿࡀࠊ⏕యෆ࡛ࡢᙧᡂ⌧ሙ࡛࡝ࡢࡼ࠺࡟ࡇࢀࡽࡀᙧᡂࡉࢀ࡚࠸ࡿ࠿࡟ࡘ࠸࡚ࡣࠊ⏕≀ࡀࣈࣛࢵࢡ࣎ࢵࢡ
ࢫ࡛࠶ࡿࡓࡵ࡟࠶ࡲࡾ᫂ࡽ࠿࡟࡞ࡗ࡚࠸࡞࠸ࠋ౛࠼ࡤࠊ⬨᳝ື≀ࡢ㦵ࡣࠊ㦵ⱆ⣽⬊ࡀࣁ࢖ࢻࣟ࢟ࢩ࢔ࣃࢱ࢖ࢺ
&D 32  2+ +$S  ࢆᙧᡂࡋ࢝ࣝࢩ࣒࢘ࡢ㈓ⶶࢆ⾜࠺࡜ྠ᫬࡟ࠊ◚㦵⣽⬊ࡀ㦵ࢆ⁐࠿ࡋ࢝ࣝࢩ࣒࢘ࢆ⚄⤒ఏ㐩⣔࡟౪⤥ࡍࡿ࡜࠸࠺࢝ࣝࢩ࣒࢘※࡜ࡋ࡚ࡢᙺ๭ࡶᣢࡕࠊࡑࡢ⌧ሙ࡛⾜ࢃࢀ࡚࠸ࡿ཯ᛂࡣ㠀ᖖ࡟」㞧࡛࠶ࡿࠋ  ࡑࡇ࡛ᮏ◊✲ࢢ࣮ࣝࣉࡣࠊ཯ᛂ⣔ࢆࢩࣥࣉࣝ࡟ࡍࡿࡓࡵ࡟㠀⏕≀⣔ࡢ‵ᘧỿẊἲ࡛ +$S ࡢྜᡂࢆ⾜࠸ࠊS+ࡸ࢝ࣝࢩ࣒࢘ࡢ⃰ᗘ࡞࡝ࢆኚ໬ࡉࡏ࡞ࡀࡽࠊ⁐Ꮡࡋ࡚࠸ࡿ࢝ࣝࢩ࣒࢘࢖࢜ࣥࡀࣜࣥ㓟࢖࢜ࣥ࡜⤖ྜࡋࠊ๓㥑య࠿
ࡽ +$S ࡟⛣⾜ࡍࡿ᮲௳ࢆㄪ࡭ࡓࠋ≉࡟ࡑࡢ୰࡛ࡶࠊ࢝ࣝࢩ࣒࢘ࡀ⣽⬊࠿ࡽศἪࡉࢀࡓ࡜ࡁ࡟ࠊ࡝ࡢࡃࡽ࠸ࡢ⃰ᗘ࠿ࡽ࡝ࡢࡼ࠺࡟ +$S ࡀᙧᡂࡉࢀ࡚ࡺࡃ࠿࡟ࡘ࠸࡚᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟ࠊ+$S ࢼࣀ⢏Ꮚࡢᠱ⃮ᾮࡢᙧᡂ᮲௳࡟ࡘ࠸᳨࡚ウࢆ⾜࠺ࡇ࡜ࢆィ⏬ࡋࡓࠋ㸰㸬◊✲᪉ἲ  ‵ᘧỿẊἲ࡛ +$S ࡢྜᡂࢆ⾜ࡗࡓࠋ+$S ࡢ໬Ꮫ⤌ᡂ࡟ྜࢃࡏ࡚ &D ࡜ 3 ࡢࣔࣝẚࡀ  ࡟࡞ࡿࡼ࠺࡟ᐇ㦂ࡢࣉࣟࢺࢥࣝࢆసᡂࡋࡓࠋPRO/ ࡢ &D 12  Ỉ⁐ᾮ P/ ࡜ S+ ࣓࣮ࢱࡢ㟁ᴟࢆ P/ ࣅ࣮࣮࢝࡟࠸ࢀࠊ࣐ࢢ
ࢿࢸ࢕ࢵࢡࢫࢱ࣮࣮࡛ࣛ᧠ᢾࡋ࡞ࡀࡽࠊP/ ࣅࣗࣞࢵࢺ࡛ PRO/ ࡢ 1+ +32 Ỉ⁐ᾮࢆ P/ ⁲ୗࡋࡓࠋࡇ
ࡢ⁲ୗ࡜ྠ᫬࡟  㹫/ ࣅࣗࣞࢵࢺ࡛ PRO/ ࡢ◪㓟ࡲࡓࡣ 1D2+ Ỉ⁐ᾮࢆ⁲ୗࡋ࡚ࠊỈ⁐ᾮࡢ S+ ࢆࡑࢀࡒࢀ  ࡟ㄪᩚࡋࡓࠋ 1+ +32 Ỉ⁐ᾮࡢ඲㔞ࢆ⁲ୗࡋࡓࡢࡕࡍࡄ࡟ࠊ྾ᘬࢁ㐣࡛ỿ⃦ࢆᅇ཰ࡋࠊᑡ㔞ࡢ⣧Ỉ࡛㸱ᅇὙίᚋࠊࢁ⣬ࡈ࡜㢼஝ࡋࡓࠋ⃰ᗘ࡟ࡼࡿ⏕ᡂ≀ࡢኚ໬ࢆ☜ㄆࡍࡿࡓࡵࠊྠᵝࡢྜᡂࢆ PRO/ ࡢ &D 12 Ỉ⁐ᾮ࡜ࡢ PRO/ ࡢ 1+ +32 Ỉ⁐ᾮࢆ⏝࠸࡚⾜ࡗࡓࠋࡲࡓࠊ⏕య⏤᮶ࡢ +$S ࡜ࡋ࡚ࣈࢱࡢ㦵ࢆ  ᫬㛫↻Ἓࡋ࡚᭷ᶵ≀ࢆ㦵࠿ࡽྲྀࡾ㝖ࡁࠊ㢼஝ᚋ࡟⢊○ࡋ ᐃヨᩱ࡜ࡋࡓࠋヨᩱࡢ⤖ᬗ┦ࡢྠᐃࢆ⾜࠺ࡓࡵࠊ⢊ᮎ ; ⥺ᅇᢡ ᐃࢆ⾜ࡗࡓࠋ

















㸱㸬⤖ᯝ
  ᅗ㸯࡟ PRO/ ࡢỈ⁐ᾮ࡛ྜᡂࡋࡓ +$S ࡜ࣈࢱࡢ㦵ࡢ⢊ᮎ ; ⥺ᅇᢡࣉࣟࣇ࢓࢖ࣝ࡜-&3'6 ࣮࢝ࢻࡢ +$Sࠊ%UXVKLWH㸦&D+32࣭+2㸧ࡢࢹ࣮ࢱࢆ♧ࡋࡓࠋヨᩱ࡟ࡳࡽࢀࡓࣆ࣮ࢡࡢ࠺ࡕࠊ%UXVKLWH ࡜ᅇᢡゅࡀ୍⮴ࡋ࡚࠸ࡿࡶ
ࡢࢆࠐ࡛ࠊ+$S ࡜ᅇᢡゅࡀ୍⮴ࡋ࡚࠸ࡿࡶࡢࢆ‫࡜ۃ‬ź࡛♧ࡋࡓࠋ+$S ࡢ⣔࡛ࡣࠊS+  ࠿ࡽ  ࡟⮳ࡿࡲ࡛ %UXVKLWH ࡢᅇᢡࣆ࣮ࢡࡀ☜ㄆࡉࢀࠊS+㸻 ࡛ᾘኻࡋࡓࠋࡑࡢᅇᢡ
ᙉᗘࡣ S+ ࡀ㧗ࡃ࡞ࡿ࡟ࡘࢀ࡚ῶᑡࡋ࡚࠸ࡁࠊࡇࢀ࡟క࠸ࠊS+  ࠿ࡽ  ࡛ +$S ࡢᅇᢡᙉᗘࡀ㧗ࡃ࡞ࡗ࡚ࡺࡃ
ᵝᏊࡀ☜ㄆࡉࢀࡓࠋS+㸻 ࡛ᙧᡂࡉࢀࡓ +$S ࡢ ; ⥺ᅇᢡࣉࣟࣇ࢓࢖ࣝࡀ᭱ࡶ 61 ẚࡀ㧗࠿ࡗࡓࡀࠊᅇᢡࣆ࣮ࢡ
ࡢ⥺ᖜࡣᗈࡃࠊ⤖ᬗᛶࡀప࠸ࡇ࡜ࡀࢃ࠿ࡗࡓࠋࣈࢱࡢ㦵ࡢ ; ⥺ᅇᢡࣉࣟࣇ࢓࢖࡛ࣝࡣ 61 ẚࡀపࡃࣀ࢖ࢬ࡜༊ู
ࡀ࡛ࡁࡿࡢࡣ r௜㏆࡟ࡳࡽࢀࡓᅇᢡࣆ࣮ࢡࡢࡳ࡛࠶ࡗࡓࡀࠊࡇࢀࡽࡣ +$S ࡢ᭱ᙉ⥺௜㏆ࡢᅇᢡࣆ࣮ࢡ࡜୍⮴ࡍࡿࡓࡵ࡟ࠊ⤖ᬗ┦࡜ࡋ࡚ほ ࡛ࡁࡿࡢࡣ +$S ࡢࡳ࡛࠶ࡿ࡜⪃࠼ࡓࠋࡲࡓࠊࡑࡢࣆ࣮ࢡᖜࡶᗈࡃࠊ⤖ᬗᛶࡀ㠀ᖖ࡟ప࠸ࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡇࢀࡼࡾࠊ⏕య࢔ࣃࢱ࢖ࢺ࡜ࡋ࡚ฟ⌧ࡍࡿ +$S ࡣࠊ㠀⏕≀⣔࡛ྜᡂࡋࡓ +$S ࡼࡾࡶ⤖ᬗᏊࡢ኱ࡁࡉࡀᑠࡉࡃࠊࢼࣀ⢏Ꮚࡢ㞟ྜయࡢࡼ࠺࡟࡞ࡗ࡚࠸ࡿࡇ࡜ࡀ᥎ᐹࡉࢀࡓࠋ

− 223 −

ᅗ㸰࡟ PRO/ ࡢỈ⁐ᾮ࡛ྜᡂࡋࡓ +$S ࡜ࣈࢱࡢ㦵ࡢ⢊ᮎ ; ⥺ᅇᢡࣉࣟࣇ࢓࢖ࣝ࡜ -&3'6 ࣮࢝ࢻࡢ+$Sࠊ%UXVKLWH ࡢࢹ࣮ࢱࢆ♧ࡋࡓࠋࡇࡢྜᡂ࡛ࡣࠊᕼ◪㓟ࢆ⏝࠸࡚ S+ ࢆ  ௜㏆࡟ㄪᩚࡍࡿ࡜ࠊࣅ࣮࣮࢝ෆ࡟⏕ᡂࡋࡓỿẊࡀ෌⁐ゎࡋࠊࢁ㐣࡟ࡼࡿỿẊࡢᅇ཰ࡀ࡛ࡁ࡞࠿ࡗࡓࡓࡵࠊS+  ࠿ࡽࡢヨᩱ࡟ࡘ࠸࡚ ; ⥺ᅇᢡ ᐃࢆ⾜ࡗࡓࠋS+  ࡜  ࡛ࡣࠊ%UXVKLWH ࡢᅇᢡࣆ࣮ࢡࡢࡳ࡛࠶ࡗࡓࡀࠊS+  ࡛ࡣ %UXVKLWH ࡜ +$S ࡢ୧᪉ࡀ⏕ᡂࡋ࡚࠸ࡓࠋS+  ࡜  ࡛ࡣ +$S ࡢࡳࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊᮏ⣔࡛ࡶ⏕ᡂࡋࡓ +$S ࡢᅇᢡࣆ࣮ࢡࡢᖜࡣᗈࡃࠊ⤖ᬗᛶࡀప࠸ࡇ࡜ࡀࢃ࠿ࡗࡓࠋ
PRO/ ࡜ PRO/ ࡛ࡢ +$S ࡢẚ㍑ࡢࡓࡵ࡟ࠊS+  ࡢヨᩱࡢ ȟࡀ r௜㏆࡟ฟ⌧ࡋ࡚࠸ࡿᅇᢡࣆ࣮ࢡ
ࡢᅇᢡᖜ࠿ࡽࠊࢩ࢙࣮ࣛࡢᘧࢆ⏝࠸࡚⤖ᬗᏊࡢ኱ࡁࡉࢆ⟬ฟࡋࡓ࡜ࡇࢁࠊPRO/ ࡢ +$S ࡛ࡣ༙౯ᖜࡀ r࡛⤖ᬗᏊࡢ኱ࡁࡉࡀ ύࠊPRO/ ࡢ +$S ࡛ࡣ༙౯ᖜࡀ  ࡛⤖ᬗᏊࡢ኱ࡁࡉࡀ ύ࡛࠶ࡗࡓࠋࡲࡓࠊ࠸
ࡎࢀࡢ⃰ᗘ࡛ࡶࠊS+ ࡢప࠸᪉࡛ฟ⌧ࡋࡣࡌࡵࡢ r௜㏆ࡢ +$S ࡢᅇᢡࣆ࣮ࢡࡢ⥺ᖜࡣ S+  ࡼࡾࡶᗈࡃࠊ
+$S ࡢᙧᡂึᮇ࡛ࡣࠊ⤖ᬗᏊࡢ኱ࡁࡉࡀᑠࡉ࠸ࡇ࡜ࡀ⪃࠼ࡽࢀࡓࠋࡇࡢᅇᢡࣆ࣮ࢡࡣࠊ-&3'6 ࣮࢝ࢻ࡛ࡣ  ᮏ࡟ศ㞳࡛ࡁࡿᅇᢡ⥺ࡀ࠶ࢃࡉࡗࡓࡶࡢ࡛࠶ࡿࡢ࡛ࠊࡑࡢࡲࡲ༙౯ᖜࡢィ⟬࡟⏝࠸ࡿࡇ࡜ࡣ࡛ࡁ࡞࠸ࡀࠊ‵ᘧࡢྜᡂ⣔࡛ +$S ࡢ⤖ᬗࡀ࡝ࡢࡼ࠺࡟⢏ᡂ㛗ࡋ࡚࠸ࡃ࠿ࢆᐃᛶⓗ࡟ุ᩿ࡍࡿࡢ࡟ᙺ࡟❧ࡘ࡜⪃࠼ࡓࠋࣈࢱࡢ㦵࡛ࡣࠊ+$S
ࡢ⤖ᬗᏊࡢィ⟬࡟⏝࠸ࡓᅇᢡࣆ࣮ࢡࡀほ ࡉࢀ࡞࠿ࡗࡓࡓࡵࠊ⤖ᬗᏊࢆぢ✚ࡶࡿࡇ࡜ࡀ࡛ࡁ࡞࠿ࡗࡓࡀࠊr௜
㏆ࡢᅇᢡࣆ࣮ࢡࡢ༙౯ᖜ࡛ࡣࠊ௒ᅇྜᡂࡋࡓ +$S ࡢ⏕ᡂึᮇࡢ S+ 㹼 ࡢࡶࡢ࡜ྠ⛬ᗘ࡜ุ᩿ࡋࡓࠋ
⃰ᗘࡢప࠸ PRO/ ࡢ +$S ࡢ᪉ࡀ⤖ᬗᛶࡀపࡃ࡞ࡗࡓ⌮⏤࡜ࡋ࡚ࡣࠊPRO/ ࡢཎᩱ⁐ᾮࢆ⏝࠸ࡿྜᡂ࡛
ࡣࠊࣅ࣮࣮࢝ෆࡢࣜࣥ㓟࢖࢜ࣥࡢ⃰ᗘࡀపࡃ 1+ +32 Ỉ⁐ᾮࢆ⁲ୗࡋ࡚ࡿ࡜ࡁ࡟⁐ᾮෆ࡟࡛ࡁࡓ⤖ᬗ᰾ࡀ෌⁐ゎࢆཷࡅࡸࡍࡃࠊ⏕ࡌࡓ⤖ᬗ᰾ࡣ⁐ᾮෆࡢࣜࣥ㓟࢖࢜ࣥࡀ㐣㣬࿴࡟࡞ࡿࡲ࡛⤖ᬗᡂ㛗࡟⮳ࡽ࡞࠸ࡀࠊPRO/ ࡢཎᩱ⁐ᾮࢆ⏝࠸ࡓྜᡂ࡛ࡣ⁐ᾮ୰ࡢࣜࣥ㓟↮⃰ᗘࡀ  ಸ࠶ࡿࡓࡵࠊỿẊ᰾ࡢ෌⁐ゎࡼࡾࡶ⤖ᬗᡂ㛗ࡢᙳ㡪ࡢ᪉ࡀ኱ࡁ࠸ࡇ࡜ࡀ⪃࠼ࡽࢀࡓࠋࡇࡢࡼ࠺࡟ࠊཎᩱ⁐ᾮࡢ⃰ᗘࡀపࡃ࡞ࡿ࡜‵ᘧἲ࡛ᚓࡽࢀࡿ +$S ࡢ⤖ᬗᛶࡀపࡃ࡞ࡗ
ࡓࡇ࡜࠿ࡽࠊࡼࡾ⏕యࡢ㦵࡟㏆࠸⤖ᬗᛶࡢ +$S ࢆྜᡂࡍࡿࡓࡵ࡟ࡣࠊࡉࡽ࡟ప⃰ᗘࡢཎᩱ⁐ᾮࢆ⏝࠸ࡿࡇ࡜ࡀ᭷
ຠ࡛࠶ࡿ࡜᥎ᐹࡋࡓࠋࡇࢀ࠿ࡽࡣࠊPRO/PRO/ ࡛ࡢ +$S ࡢ‵ᘧྜᡂࢆ⾜࠸ࡇࡢ௬ㄝࢆ᳨ドࡍࡿࡇ࡜࡜ࠊ㦵ࡢࡼ࠺࡟ヨᩱ୰ࡢ +$S ࡢྵ᭷㔞ࡀప࠸ヨᩱ࡟ᑐࡋ࡚⢊ᮎ ; ⥺ᅇᢡ࡛ヨᩱࡢ⤖ᬗᛶࡢホ౯ࢆᐃ㔞ⓗ࡟⾜࠺ᡭἲ࡟ࡘ࠸᳨࡚ウࢆ㐍ࡵ࡚ࡺࡃࠋ  

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㸲㸬⤖ㄽ

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

ᅗ䠍䠅 PRO/ 䛾Ỉ⁐ᾮ䜢⏝䛔䛯‵ᘧྜᡂ䛻䜘䜛 +$S 䛾㻌 㻌 ᅗ 䠅 PRO/ 䛾Ỉ⁐ᾮ䜢⏝䛔䛯‵ᘧྜᡂ䛻䜘䜛 +$S 䛾⢊ᮎ ; ⥺ᅇᢡ䝥䝻䝣䜯䜲䝹㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌            㻌 㻌 㻌 ⢊ᮎ ; ⥺ᅇᢡ䝥䝻䝣䜯䜲䝹㸲㸬ཧ⪃ᩥ⊩ᑎෆ⨾⿱ࠊబ⸨㑈ኴᮁࠊṊ⏣ᚿ஀ࠊ⸆୸ᬕᏊࠊᑠ➟ཎㅍࠊᮧ⏣Ṋኈࠊ἟Ꮚ༓ᘺࠊ࣐ࣥ࢞ࣥࢆඹᏑࡉࡏࡓඹỿἲ࡟
ࡼࡿࣁ࢖ࢻࣟ࢟ࢩ࢔ࣃࢱ࢖ࢺࡢྜᡂ࡜ ; ⥺ศᯒࠊ; ⥺ศᯒࡢ㐍Ṍࠊ ྕࠊ  Sࠥ

㸦ඹྠ◊✲ศ㔝㸸ࢢ࣮ࣜࣥ㐀ᙧᏛศ㔝㸧− 224 −

ᗫᲠ㈅Ẇࢆࢯ࣮ࢫ࡜ࡍࡿ࣐ࣝࢳࢱ࣮ࢤࢵࢺ྾╔๣ࡢ㛤Ⓨᐊ⹒ᕤᴗ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ᒣ୰ ┿ஓ㸯㸬┠ⓗ ▼⅊▼㸦୺ᡂศ㸸Ⅳ㓟࢝ࣝࢩ࣒࢘㸧ࡣ㸪ࢭ࣓ࣥࢺࡢཎᩱ㸪㧗⅔ࣉࣟࢭࢫࡢ๪ཎᩱࢆ୺せ⏝㏵࡜ࡋ࡚㸪ᖺ㛫  ൨ࢺࣥ௨ୖ⏕⏘ࡉࢀ࡚࠸ࡿࠋ㈨※࡟ஈࡋ࠸᪥ᮏ࡟࠾࠸࡚ᩘᑡ࡞࠸⮬ᅜ࡛ㄪ㐩ྍ⬟࡞㈨※㸪࠿ࡘᅽಽⓗ࡞Ᏻࡉ㸦ࢺࣥᩘ༓෇㸧ࢆ⫼ᬒ࡟㸪ከ✀ከᵝ࡞⏘ᴗ㸦㕲㗰㸪ࢭ࣓ࣥࢺࡢ࡯࠿㸪㢦ᩱ㸪ࣉࣛࢫࢳࢵࢡ㸪⣬㸪᥋╔๣ࡢࣇ࢕࣮ࣛ㸧࡟฼⏝ࡉࢀ࡚࠸ࡿࠋ⏝㏵ࡢ  ๭ࢆ༨ࡵࡿࢭ࣓ࣥࢺ࡜
㧗⅔࡟࠾࠸࡚ࡣ㸪Ⅳ㓟࢝ࣝࢩ࣒࢘ࡢ⇞↝㐣⛬࡛㸪኱㔞㸦 ୓ࢺࣥ &2ᖺ㸧ࡢ஧㓟໬Ⅳ⣲ࡀⓎ⏕ࡍࡿࠋ௚᪉㸪໭ᾏ㐨ࡔࡅ࡛ࡶᖺ㛫  ୓ࢺࣥ⛬ᗘࡢ㈅Ẇ㸦୺ᡂศ㸸Ⅳ㓟࢝ࣝࢩ࣒࢘㸧ࡀ⏘ᴗᗫᲠ≀࡜ࡋ
࡚Ⓨ⏕ࡋ㸪⏘ᴗୖࡢ᭷ຠά⏝ࡀồࡵࡽࢀ࡚࠸ࡿࠋ▼⅊▼࡟ẚ࡭ࡿ࡜ᅽಽⓗ࡟㔞ࡣᑡ࡞࠸ࡀ㸪฼⏝ࡢ㐣⛬࡛Ⅳ㓟࢝ࣝࢩ࣒࢘࠿ࡽ஧㓟໬Ⅳ⣲ࡀ௬࡟᤼ฟࡉࢀࡓ࡜ࡋ࡚ࡶ㸪ᡂ㛗ࡢ㐣⛬࡛྾཰ࡋࡓ஧㓟
໬Ⅳ⣲࡛࠶ࡿࡓࡵ࣮࢝࣎ࣥࢽ࣮ࣗࢺࣛࣝ࡞฼⏝᪉ἲ࡜⪃࠼ࡽࢀࡿࠋ㐨㊰⯒⿦ᮦࡸࢳ࣮ࣙࢡࡢཎᮦ
ᩱ࡜ࡋ࡚㈅Ẇࢆ⏝࠸ࡿ◊✲ࡀ㐍ࡵࡽࢀ㸪୍㒊ࡣᐇ⏝໬ࡉࢀ࡚࠸ࡿࡀ㸪⏝㏵㛤Ⓨࡣ㛗ᖺࡢㄢ㢟࡜࡞ࡗ࡚࠸ࡿࠋ
ྛ✀⏝㏵࡟㐺ࡋࡓⅣ㓟࢝ࣝࢩ࣒࢘ࡢᵓ㐀ไᚚ㸪⏕య㖔≀㸦㈅Ẇࡸ┿⌔࡞࡝㸧ᙧᡂᶵᵓࡢゎ᫂㸪ࡇࡢ  ࡘࡢどⅬ࡛Ⅳ㓟࢝ࣝࢩ࣒࢘࡟㛵ࡍࡿ◊✲ࡀྂࡃ࠿ࡽ┒ࢇ࡟࠾ࡇ࡞ࢃࢀ࡚࠸ࡿࠋ

ᗘࡸ S+㸪

཯ᛂ᫬㛫࡞࡝ࡢྜᡂ᮲௳㸪ࡑࢀ࡜↓ᶵ࣭᭷ᶵῧຍ≀ࡢ⤌ࡳྜࢃࡏ࡟ࡼࡾ㸪ᐇ࡟ከࡃࡢᙧែࡀࡳ࠸
ࡔࡉࢀ࡚ࡁࡓ>㸪@ࠋ᭱㏆࡛ࡣ㸪࢝ࣝࢩ࣒࢘ྵ᭷ᗫᲠ≀㸦ࢫࣛࢢࡸ⇞↝⅊㸧ࡢ㖔≀໬>@㸪Ⅳ㓟࢝ࣝࢩ࣒࢘ࡢ⾲㠃ᙧែ࡜࣓ࢱࣥ࢞ࢫࡢ྾╔࡟㛵ࡍࡿ⌮ㄽィ⟬>@࡟௦⾲ࡉࢀࡿࡼ࠺࡟㸪࣮࢝࣎ࣥࢽ࣮ࣗ
ࢺࣛࣝ♫఍ࡢᐇ⌧࡟ࡴࡅ࡚㸪ᗫᲠ≀࠿ࡽࡢⅣ㓟࢝ࣝࢩ࣒࢘ࡢ᪂つ〇㐀᪉ἲࡔࡅ࡛࡞ࡃ㸪ࡑࡢᐊຠᯝ࢞ࢫ๐ῶ࡟ྥࡅࡓ྾╔๣࡜ࡋ࡚ࡢ᪂ࡓ࡞⏝㏵㛤Ⓨࡀὀ┠ࡉࢀࡘࡘ࠶ࡿࠋ
ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ᗫᲠ㈅Ẇࡢ᭷ຠ฼⏝ࢆ┠ⓗ࡜ࡋ࡚㸪⢊○࡟ࡼࡾᚓࡓ㈅Ẇ⢊య㸦Ⅳ㓟࢝ࣝࢩ࣒࢘㸧ࡢ⢏Ꮚ≉ᛶ㸦ከᙧ㸪ẚ⾲㠃✚㸪⤖ᬗᏊࢧ࢖ࢬ㸧࡜྾╔๣࡜ࡋ࡚ࡢᶵ⬟࡜ࡢ㛵ಀࢆㄪ࡭ࡿࠋࡑ
ࡢࡓࡵ࡟ࡲࡎࡣ㸪ᵓ㐀࡜ᶵ⬟ࡢ㛵ಀࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ㸪๓㏙ࡢ⢏Ꮚ≉ᛶࡢ࠺ࡕ  ࡘࡀ␗࡞ࡾ௚ࡢ  ࡘࡀྠ⛬ᗘࡢヨᩱ㸪ࡍ࡞ࢃࡕ౛࠼ࡤከᙧࡢ๭ྜࡀ␗࡞ࡾẚ⾲㠃✚࡜⤖ᬗᏊࢧ࢖ࢬࡀྠ⛬ᗘࡢヨᩱࡀᚓࡽࢀࡿ⢊○ἲࢆᶍ⣴ࡋࡓࠋ㸰㸬◊✲᪉ἲ ཎᩱ࡟ࡣ㸪໭ᾏ㐨Ɫᑠ∾⏘ࡢ࣍ࢵ࢟ࡢ㈅Ẇ㸦ከᙧ㸸࢔ࣛࢦࢼ࢖ࢺ㸧ࢆࡶࡕ࠸ࡓࠋὙίࡋ୍࡚ᬌ
஝⇱ࡋࡓ㈅Ẇࢆࣁ࣐࣮࡛ࣥ○ࡁ㸪┠㛤ࡁ ȝP ࡢ⠠ࢆࡶࡕ࠸࡚⢒⢊ࢆᚓࡓࠋ⢊○ࡣ㸪㐟࣮࣑ᫍ࣎ࣝࣝࢆࡶࡕ࠸ࡓ⊂⮬ࡢ⢊○᪉ἲ㸸Ỉᅇ཰ἲ>@ ࡛࠾ࡇ࡞ࡗࡓࠋࡇࡢ᪉ἲ࡛ࡣ㸪஝ᘧ⢊○࡜ẚ㍑ࡋ࡚
ᩘಸ࠿ࡽ  ಸ⛬ᗘࡢ㧗࠸ẚ⾲㠃✚ࢆ᭷ࡍࡿ⢏Ꮚࡀᚓࡽࢀࡿࠋ⢊○ヨᩱࡣ㸪ᡤᐃ᫬㛫㸦㹼 ᫬㛫㸧⢊○ࡋࡓᚋࡑࡢࡲࡲᅇ཰ࡍࡿࠕ'U\ ᅇ཰ࠖ࡜ḟ࡟㏙࡭ࡿࠕỈᅇ཰ࠖ࡟ࡼࡾస〇ࡋࡓࠋỈᅇ཰࡛ࡣ㸪ᡤᐃ᫬㛫⢊○ᚋ࡟⵨␃Ỉࢆ࣑࣏ࣝࢵࢺ࡟ຍ࠼㸪ᅇ཰ࡋࡓᠱ⃮ᾮࢆ USP ࡛  ศ㛫᣺࡜࠺ࡋࡓࠋ

− 225 −

㐲ᚰศ㞳࡟ࡼࡗ࡚ᚓࡽࢀࡓ‵ࡗࡓỿẊ≀ࢆ Υࡢ஝⇱ჾ୍࡛ᬌ஝⇱ࡋࡓࠋᚓࡽࢀࡓ୍㐃ࡢヨᩱࡢ୍㒊ࡣ㸪㟁Ẽ⅔ࢆ౑⏝ࡋ࡚ 㹼Υ࡛↝ᡂࡋࡓ㸦ࡇࡢᗘᖏ࡛࢔ࣛࢦ

ࢼ࢖ࢺࡣ࢝ࣝࢧ࢖ࢺ࡬┦㌿⛣ࡍࡿ㸧ࠋᅇ཰᪉ἲ࡛ࡣ୺࡜ࡋ࡚ẚ⾲㠃✚ࡀ㸪⢊○᫬㛫࡛ࡣ⤖ᬗᏊࢧ࢖ࢬࡀ㸪↝ᡂฎ⌮࡛ࡣ࢔ࣛࢦࢼ࢖ࢺࡢ๭ྜࡀࡑࢀࡒࢀ኱ࡁࡃ␗࡞ࡿࡇ࡜ࢆᮇᚅࡋ࡚࠸ࡿࠋ ẚ⾲㠃✚ࡣ %(7 ἲ࡟ࡼࡾᐃࡋࡓࠋከᙧࡢ๭ྜࡣ ;5' ࡛ᚓࡓྛከᙧࡢࣆ࣮ࢡ࠿ࡽ㸪⤖ᬗᏊࢧ࢖ࢬࡣ࢔ࣛࢦࢼ࢖ࢺࡢ㸦㸧㠃ࡢࣆ࣮ࢡ࠿ࡽࡑࢀࡒࢀ⟬ฟࡋࡓࠋ㸱㸬⤖ᯝ ᚓࡽࢀࡓ⢊యࡢ⢏Ꮚ≉ᛶࢆㄪ࡭ࡓ⤖ᯝ㸪ࢩ࣮ࣜࢬ 㸸࢔ࣛࢦࢼ࢖ࢺࡢ๭ྜࡀ 㹼㸦ẚ⾲㠃✚ PJ㸪⤖ᬗᏊࢧ࢖ࢬ QP㸧ࡢ  ࢧࣥࣉࣝ㸪ࢩ࣮ࣜࢬ 㸸⤖ᬗᏊࢧ࢖ࢬࡀ 㹼QP㸦࢔ࣛࢦࢼ࢖ࢺࡢ๭ྜ 㸪ẚ⾲㠃✚ PJ㸧ࡢ  ࢧࣥࣉࣝ㸪ࢩ࣮ࣜࢬ 㸸ẚ⾲㠃✚ࡀ 㹼PJ㸦࢔ࣛࢦࢼ࢖ࢺࡢ๭ྜ 㸪⤖ᬗᏊࢧ࢖ࢬ QP㸧ࡢ  ࢧࣥࣉࣝࡀᚓࡽࢀࡓࠋ㸲㸬⤖ㄽ ⢊○᪉ἲࢆ᳨ウࡋࡓ⤖ᯝ㸪ከᙧ㸪ẚ⾲㠃✚㸪⤖ᬗᏊࢧ࢖ࢬࡢ  ࡘ⢏Ꮚ≉ᛶࡢ࠺ࡕ  ࡘࡀ␗࡞ࡾ௚ࡢ  ࡘࡀྠ⛬ᗘࡢヨᩱࢆᚓࡓࠋ௒ᚋࡣ㸪ࡇࢀࡽࡢヨᩱࢆࡶࡕ࠸࡚ྛ✀྾╔ᛶ⬟ࢆホ౯ࡋ࡚ᵓ㐀࡜ᶵ⬟ࡢ㛵ಀࢆ᫂ࡽ࠿࡟ࡋ࡚࠸ࡃࠋ
㸳㸬ཧ⪃ᩥ⊩>@ <%R\MRRHWDO-RXUQDORI0DWHULDOV&KHPLVWU\$  >@ $-LPRKHWDO&DUERQDWHV(YDSRULWHV  >@ 6<3DQHWDO1DWXUH6XVWDLQDELOLW\  >@ $72QDZROHHWDO56&$GYDQFHV  >@ 6<DPDQDNDHWDO-RXUQDORI1DQRSDUWLFOH5HVHDUFK  㸦ඹྠ◊✲ศ㔝㸸ࢢ࣮ࣜࣥ㐀ᙧᏛศ㔝㸧− 226 −

࢔࢖ࢯࢪ࣓࢜ࢺࣜࢵࢡ࢔ࢼࣜࢩࢫ㸦,*$㸧࡟ࡼࡿ⁐᥋᥋ᡭ◚ቯၥ㢟ゎᯒࡢᇶ♏◊✲ᮾி⌮⛉኱Ꮫ๰ᇦ⌮ᕤᏛ㒊  ᒸ⏣ ⿱㸪எ㯮㞝ᩯ㟁Ẽ㏻ಙ኱Ꮫ኱Ꮫ㝔᝟ሗ⌮ᕤᏛ◊✲⛉  㐟బὈ⣖⥴ゝ
࢔࢖ࢯࢪ࣓࢜ࢺࣜࢵࢡゎᯒ㸦,*$㸧
㸦&RWWUHOO ࡽ >@㸧ࡣ &$' ࢯࣜࢵࢻࣔࢹࣝࢆᙧ≧ධຊࢹ࣮ࢱ࡜ࡋ㸪ࡑࡢ⾲⌧࡛౑⏝ࡉࢀࡿ 185%6 㛵ᩘࢆゎᯒࡢᙧ≧㛵ᩘ࡟฼⏝ࡍࡿࡓࡵ㸪᭷㝈せ⣲ἲゎᯒ㸦)(0㸧࡛୙ྍ㑊࡞ゎᯒ⢭ᗘຎ໬࡟⧅ࡀࡿᙧ≧㞳ᩓ໬ㄗᕪࢆ᏶඲࡟ᅇ㑊࡛ࡁ㸪࠿ࡘࠊ)(0 ࣓ࢵࢩࣗศ๭ࡀ୙せ࡞㧗⢭ᗘ࣭㧗ຠ⋡ᵓ㐀 &$( ゎᯒࢆྍ⬟࡟ࡍࡿ᪂ᡭἲ࡛࠶ࡿ㸬,*$ ࢆ⁐᥋᥋ᡭ㒊ࡢ◚ቯຊᏛゎᯒ࡟㐺⏝ࡍࡿ㝿ࡢၥ㢟Ⅼࢆ᫂ࡽ࠿࡟ࡋࠊࡑࢀࡽࡢၥ㢟ゎỴἲ࡟ࡘ࠸࡚ㄪᰝ࣭◊✲ࢆ⾜ࡗ࡚ࡁࡓ㸬 ᖺᗘࡣ㸪⁐᥋᥋ᡭ㒊ࡢ◚ቯຊᏛゎᯒᐇ᪋࡛㔜せ࡞ட⿣࡟ᑐࡍࡿゎᯒࣔࢹࣝᵓ⠏ࢆᐜ᫆࡟ࡍࡿ┠ⓗ࡛ᥦ᱌ࡋࡓ࢔࢖ࢯࢪ࣓࢜ࢺࣜࢵࢡ࢔ࢼࣜࢩࢫ㸦,*$㸧㔜ྜࣃࢵࢳἲࡢᐃᘧ໬㸪ࣉࣟࢢ࣒ࣛᐇ⿦㸪౛㢟ゎᯒ࡟ᡂຌࡋ࡚࠸ࡿ㸦2NDGD ࡽ>@㸧㸬ᮏሗ࿌࡛ࡣ㸪ࡑࢀࡽࡢᴫせ࡟ࡘ࠸࡚㏙࡭ࡿ㸬 D ቃ⏺್ၥ㢟E  㔜ࡡྜࢃࡏࡢᴫᛕᅗᅗ  ,*$ ᇶᗏ㛵ᩘࡢ౛ ஧ḟ % ࢫࣉࣛ࢖ࣥ㸪 ᅗ  ቃ⏺್ၥ㢟࡜ட⿣ၥ㢟࡟ᑐࡍࡿ 6,*$ ࡢゎᯒࣔࢹࣝ㔜ࡡྜࡏࡢᴫ
ࣀࢵࢺ࣋ࢡࢺࣝ ȩ ൌ ሼͲǡͲǡͲǡͳǡʹǡ͵ǡ͵ǡ͵ሽ 㸬ᛕᅗ㸦 D  ቃ⏺್ၥ㢟㸪 E  㔜ࡡྜࢃࡏࡢᴫᛕᅗ㸧࢔࢖ࢯࢪ࣓࢜ࢺࣜࢵࢡ࢔ࢼࣜࢩࢫ㸦,*$㸧㔜ྜࣃࢵࢳἲ

,*$ ࡟ࡼࡿᙎᛶၥ㢟ゎᯒ࡛ࡶ᭷㝈せ⣲ἲ࡜ྠࡌࡃ௬᝿௙஦ࡢཎ⌮࡟ᇶ࡙ࡃ㞳ᩓ໬ࢆ⾜࠺㸬ኚ఩࡜௬᝿ኚ఩
ࡢᇶᗏ㛵ᩘ࡜ࡋ࡚㸪%ࢫࣉࣛ࢖ࣥࡸ 185%6 㛵ᩘ㸦1RQ8QLIRUP5DWLRQDO%6SOLQH)XQFWLRQ㸧ࢆ౑⏝ࡍࡿ㸬୍ḟඖ % ࢫࣉࣛ࢖ࣥᇶᗏ㛵ᩘࡢ౛ࢆᅗ  ࡟♧ࡍ㸬ࣀࢵࢺ࣋ࢡࢺࣝ࡜ࡼࡤࢀࡿ㠀ῶᑡᩘิ࡟ࡼࡿ࣋ࢡࢺࣝ
ࢆ⏝࠸㸪ᇶᗏ㛵ᩘ ܰ଴ǡଶ ̱ܰସǡଶ  ࡀᐃ⩏ࡉࢀࡿ㸬 ࣀࢵࢺࢫࣃࣥࢆ ,*$ せ⣲࡜ᐃ⩏ࡋ㸪ᩘ್✚ศ࡛౑⏝ࡍࡿࠋ ≀యᙧ≧ࡸኚ఩࣋ࢡࢺࣝ࡟ᑐࡋ㸪ୖ㏙ࡢᇶᗏ㛵ᩘࢆ⏝࠸࡚ෆᤄࡍࡿ㸬ࡑࡢ㝿㸪஧ḟඖၥ㢟࡛ࡣ ߦ ߟ ࡢ஧᪉ྥ㸪୕ḟඖၥ㢟࡛ࡣߦ ߟ ߞ ୕᪉ྥࡢᇶᗏ㛵ᩘࢆ᥃ࡅྜࢃࡏ࡚౑⏝ࡍࡿⅬ࡛㸪ࣛࢢࣛࣥࢪࣗ᭷㝈せ⣲࡜㢮ఝ࡛࠶ࡿ㸬ࡑࡢࡓࡵ㸪ட⿣ࡢࡼ࠺࡞ゎᯒࣔࢹࣝࢆᒁᡤⓗ࡟ࣜࣇ࢓࢖ࣥࡍࡿࡇ࡜ࡀᚲせ࡞ゎᯒ࡛ࡣ㸪ゎᯒࣔࢹࣝ⏕ᡂ࡟ᑐࡋ࡚භ㠃య᭷㝈せ⣲ࢆ౑⏝ࡋࡓሙྜ࡜ྠᵝ㸪኱ኚ↹㞧࡞సᴗࡀᚲせ࡟࡞ࡿ㸬ࡲࡓࡣ㸪7 ࢫࣉࣛ࢖ࣥ㛵ᩘ➼㸪%ࢫࣉࣛ࢖ࣥࡸ 185%6 㛵ᩘࡼࡾ㧗ᗘ࡞ᢏἲࡀせồࡉࢀࡿ㸬 ࡑࡇ࡛㸪ሗ࿌⪅ࡽࡣ㸪,*$ 㔜ྜࣃࢵࢳἲ㸦6YHUVLRQ,VRJHRPHWULF$QDO\VLV㸪6,*$㸧ࡢᥦ᱌࡜◚ቯຊᏛゎᯒ࡬ࡢᛂ⏝◊✲࡟ྲྀ⤌ࢇ࡛ࡁࡓ㸬6,*$ ࡢᴫせ࡟ࡘ࠸࡚௨ୗ࡟♧ࡍ㸬 ᅗ  ࡟♧ࡍࡼ࠺࡞ᵓ㐀඲యࢆ⾲ࡍࢢ࣮ࣟࣂࣝ ,*$ ゎᯒࣔࢹࣝ㸦㡿ᇦ ȳீ 㸧࡜ட⿣࡜ࡑࡢ㏆ഐࡢᒁᡤࣇ࢕࣮
ࢳ࣮ࣕࢆ⾲ࡍ࣮ࣟ࢝ࣝ ,*$ ゎᯒࣔࢹࣝ㸦㡿ᇦ ȳ௅ 㸧ࢆ㔜ࡡྜࢃࡏࡓゎᯒᡭἲࢆ⪃࠼ࡿ㸬ட⿣ၥ㢟ゎᯒࡢሙྜ㸪ட⿣࡟ࡼࡿ⮬⏤⾲㠃ࢆ࣮ࣟ࢝ࣝ ,*$ ゎᯒࣔࢹࣝࡔࡅ࡛⾲⌧ࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿ㸬ࢢ࣮ࣟࣂࣝ ,*$ ゎᯒࣔࢹࣝࡔࡅࡢ㡿ᇦ ȳீ െ ȳ௅  ࡜࣮ࣟ࢝ࣝ ,*$ ゎᯒࣔࢹࣝ㡿ᇦ࡛ኚ఩㛵ᩘࢆḟᘧࡢࡼ࠺࡟⾲ࡍ㸬‫ ீݑ‬ሺߦ ீ ǡ ߟ ீ ሻሺ‫ݔ‬௞ ሺߦ ீ ǡ ߟ ீ ሻ ‫ א‬ȳீ െ ȳ௅ ሻ  ‫ݑ‬௜ ሺ‫ݔ‬௞ ሻ ൌ ቊ ௜ீ ீ ீ‫ݑ‬௜ ሺߦ ǡ ߟ ሻ ൅ ‫ݑ‬௜௅ ሺߦ ௅ ǡ ߟ ௅ ሻሺ‫ݔ‬௞ ሺߦ ீ ǡ ߟ ீ ሻ ൌ ‫ݔ‬௞ ሺߦ ௅ ǡ ߟ ௅ ሻ ‫ א‬ȳ௅ ሻࡇࡢࡼ࠺࡞ኚ఩㛵ᩘࡢ㔜ࡡྜࡏࢆ⏝࠸ࡓ⤖ᯝ㸪ḟࡢ㞳ᩓ໬᪉⛬ᘧࡀᑟ࠿ࢀࡿ㸬


ீீ
ቂࡷ ௅ீ
ࡷ

ࡷீ௅ ቃ ൜ࢁீ ൠ ൌ ቄࡲீ ቅ  ࡷ௅௅ ࢁ௅
ࡲ௅− 227 −ᘧ  ୰㸪ሾࡷீீ ሿ ࡜ ሾࡷ௅௅ ሿ ࡣࢢ࣮ࣟࣂࣝࣃࢵࢳ࡜࣮ࣟ࢝ࣝࣃࢵࢳ࡟ᑐࡍࡿ๛ᛶ⾜ิ࡛࠶ࡿ㸬ሼࢁீ ሽ ࡜ ሼࢁ௅ ሽ ࡣࢢ࣮ࣟࣂࣝ ,*$ ゎᯒࣔࢹࣝ࡜࣮ࣟ࢝ࣝ ,*$ ゎᯒࣔࢹࣝࡢࢥࣥࢺ࣮࣏ࣟࣝ࢖ࣥࢺ࡛ᐃ⩏ࡉࢀࡿኚ఩ࣃ࣓࣮ࣛ
ࢱ㸪ሼࡲீ ሽ࡜ሼࡲ௅ ሽࡣእຊ࣋ࢡࢺ࡛ࣝ࠶ࡿ㸬ட⿣㠃Ⲵ㔜ࡣሼࡲ௅ ሽࡔࡅ࡛⾲⌧ࡉࢀࡿ㸬ሾࡷீ௅ ሿሺൌ ሾࡷ௅ீ ሿ் ሻ ࡣࢢ࣮ࣟࣂ
ࣝ࡜࣮ࣟ࢝ࣝࣃࢵࢳࡢ⤖ྜ๛ᛶ⾜ิ࡛࠶ࡿ㸬ࡑࢀࡒࢀࡢࡦࡎࡳ㸫ኚ఩ࣃ࣓࣮ࣛࢱ㛵ಀ࣐ࢺࣜࢡࢫࢆ ሾ࡮ீ ሿ ࡜ሾ࡮௅ ሿ ࡜ࡍࢀࡤ㸪ྛ࣐ࢺࣜࢵࢡࢫࡣḟᘧ࡛୚࠼ࡽࢀࡿ㸬ሾࡷீீ ሿ ൌ ‫׬‬ஐಸ ሾ࡮ீ ሿ் ሾࡰሿሾ࡮ீ ሿȳீ 㸪ሾࡷ௅ீ ሿ ൌ ‫׬‬ஐಽሾ࡮௅ ሿ் ሾࡰሿሾ࡮ீ ሿȳ௅ 㸪ሾࡷ௅ீ ሿ ൌ ሾࡷ௅ீ ሿ் 㸪ሾࡷ௅௅ ሿ ൌ ‫׬‬ஐಽሾ࡮௅ ሿ் ሾࡰሿሾ࡮௅ ሿȳ௅  ୕ḟඖΰྜ࣮ࣔࢻட⿣ၥ㢟ࡢゎᯒ౛ ᅗ  ࡟♧ࡍ㸪㐲᪉୍࡛ᵝศᕸⲴ㔜ࢆཷࡅࡿᙎᛶయࣈࣟࢵࢡ୰ࡢഴᩳᴃ෇ᇙ㎸ட⿣ၥ㢟ࢆゎᯒࡋࡓ㸬ட⿣ࡢ
ഴᩳゅȰࡣߨΤͶ࡛࠶ࡿ㸬࡞࠾㸪ᑐ⛠ᛶ࠿ࡽ  㡿ᇦࡢゎᯒࢆᐇ᪋ࡋࡓ㸬ᅗ  ࡟ࡣ౑⏝ࡋࡓ ,*$ ゎᯒࣔࢹࣝࢆ
♧ࡍ㸬ᅗ  ࡟࢔ࢫ࣌ࢡࢺẚ  ࡢட⿣࡟ᑐࡍࡿட⿣๓⦕ᛂຊᣑ኱ಀᩘศᕸࢆ♧ࡍ㸬ཧ↷ゎ>@࡜ 6,*$ ゎᯒ⤖ᯝ࡟Ⰻዲ࡟୍⮴ࡋࡓ㸬࡞࠾㸪ᛂຊᣑ኱ಀᩘィ⟬࡟ࡣ ,*$ ࡢࡓࡵࡢ㡿ᇦ✚ศἲ>@࡟ࡼࡿ┦஫✚ศἲࢆ⏝࠸ࡓ㸬ᅗ 㐲᪉୍࡛ᵝᘬᙇⲴ㔜ࢆཷࡅࡿᙎᛶࣈࣟࢵ

D

E

F

ࢡ୰ࡢഴᩳᇙ㎸ᴃ෇ட⿣ၥ㢟> D ᙎᛶࣈࣟᅗ ㉥⥺ࢆட⿣๓⦕᭤⥺㸪㟷⥺ࢆ㏻ᖖࡢࣃࢵࢳቃ⏺㸪⥳⥺ࢆ≉␗ࣃࢵࢵࢡ㸪ᇙ㎸ட⿣ࡢࡓࡵࡢ࣮ࣟ࢝ࣝ ,*$ ゎᯒࣔࢳࡢቃ⏺࡜ࡋ࡚ᥥ࠸ࡓ㸪ࢢ࣮ࣟࣂࣝ ,*$ ゎᯒࣔࢹࣝ࡜࣮ࣟ࢝ࣝ ,*$ ゎࢹࣝࡢ㔜ࡡྜࢃࡏ㸪 E ࣮ࣟ࢝ࣝ ,*$ ゎᯒࣔᯒࣔࢹࣝ> D ࢢ࣮ࣟࣂࣝ ,*$ ゎᯒࣔࢹࣝ㸪 E ࣮ࣟ࢝ࣝ ,*$ ゎᯒࣔࢹࢹࣝࡢᙧ≧࡜ᴃ෇ட⿣@ࣝࡢṇ㠃ᅗ㸪 F ࣮ࣟ࢝ࣝ ,*$ ゎᯒࣔࢹࣝࡢ  ษ᩿ᅗ@ ⤖ゝ6,*$ ⥺ᙧ◚ቯຊᏛゎᯒ࡟ࡘ࠸࡚ሗ࿌ࡋࡓ㸬୕ḟඖΰྜ࣮ࣔ
ࢻၥ㢟ゎᯒ࡟ᡂຌࡋ࡚࠸ࡿ㸬௒ᚋࡣ㸪୕ḟඖ᭷㝈ኚᙧᙎረᛶࢆ
⪃៖ࡋࡓ㠀⥺ᙧ◚ቯຊᏛゎᯒࢆᐇ᪋ࡋ࡚࠸ࡃணᐃ࡛࠶ࡿ㸬ཧ⪃ᩥ⊩>@ &RWWUHOO - $  -$ +XJKHV 75- %D]LOHYV < ,VRJHRPHWULF
DQDO\VLV 7RZDUG LQWHJUDWLRQ RI &$' DQG )($   -RKQ
:LOH\ 6RQV/7' >@ ◁ᒸඃ㍜㸪ᒸ⏣ ⿱㸪ᅵᒣ㞝㣕㸪㯮⃝ኴຍᚿ㸪எ㯮 㞝ᩯ㸪,*$ 㔜ᅗ  ட⿣ࡢ࢔ࢫ࣌ࢡࢺẚࡀ  ࡢ࡜ࡁࡢட⿣๓⦕
ྜࣃࢵࢳἲ 6YHUVLRQ,VRJHRPHWULF$QDO\VLV6,*$ ࡟ࡼࡿ஧ḟᛂຊᣑ኱ಀᩘࡢศᕸ
ඖ⥺ᙧ◚ቯຊᏛゎᯒ࡟㛵ࡍࡿ◊✲㸦࣮ࣟ࢝ࣝࣃࢵࢳ㡿ᇦࡢ኱ࡁࡉ
ࡀᛂຊᣑ኱ಀᩘィ⟬⢭ᗘ࡟୚࠼ࡿᙳ㡪㸪᪥ᮏᶵᲔᏛ఍➨  ᅇィ⟬ຊᏛㅮ₇఍㸦&0'㸧 ࠝ㸪㸦㇏ᶫ㸧ࠞ㸪  >@ 0XUDNDPL<$RNL6+DVHEH1,WRK<0L\DWD+0L\D]DNL17HUDGD+7RKJR.7R\D0DPG<XXNL5
(GV  6WUHVV LQWHQVLW\ IDFWRU KDQGERRN 9RO  &RPPLWWHHRQIUDFWXUH0HFKDQLFV7KH6RFLHW\RI0DWHULDOV
6FLHQFH-DSDQ3HUJDPRQ3UHVV7RN\R>@ 7DED]D22NDGD+1DNDKDUD'$Q,*$EDVHGGRPDLQLQWHJUDOPHWKRGIRUWKHHYDOXDWLRQRIWKH-LQWHJUDOXVLQJ
WKHVLQJXODUSDWFKPHWKRG0HFKDQLFDO(QJLQHHULQJ-RXUQDO9RO  KWWSVGRLRUJPHM
㸦ඹྠ◊✲ศ㔝㸸ࢽ࣮ࣗࣀ࣮࣐ࣝࡶࡢ࡙ࡃࡾࢥࣥࢯ࣮ࢩ࢔࣒ᐊ㸧− 228 −

ඛ㐍ࣃ࣮༙࣡ᑟయࣄ࣮ࢺࢩࣥࢡࢩࢫࢸ࣒⏝ࡢ 6L&㸫ࢱࣥࢢࢫࢸࣥ␗ᮦ᥋ྜᢏ⾡࡟㛵ࡍࡿ◊✲ᐊ⹒ᕤᴗ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ᓊᮏ ᘯ❧ࠊỌ஭ ဴᖹࠊఀ℩ බဢ㸯㸬┠ⓗ ḟୡ௦ࡢ㍺㏦ᶵჾࡢ㟁ຊ໬࠾ࡼࡧ┬㟁ຊ໬ࡢࡓࡵ࡟ࡣࠊᦚ㍕ࡉࢀࡿ㟁ຊኚ᥮ᶵჾࡢᑠᆺ࣭㍍㔞໬ࡀ㔜せ࡞ㄢ㢟࡜࡞ࡗ࡚࠾ࡾࠊḟୡ௦ࡢࣃ࣮༙࣡ᑟయ࡜ࡋ࡚ 6L& ༙ᑟయࡢά⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋ6L& ༙ᑟయ࡟ࡣaΥࡢᗘ⠊ᅖ࡛ࡢືసࡀᮇᚅࡉࢀ࡚࠾ࡾࠊᚑ᮶ࡢࡣࢇࡔ௜ࡅࡢ⪏⇕ ᗘࢆ㉺࠼ࡿࡓࡵࠊࡼࡾඃࢀࡓ⪏⇕ᛶࢆ᭷ࡍࡿ᥋ྜἲ
ࡀᮃࡲࢀ࡚࠸ࡿࠋඛ㐍࣮ࣞࢨ࣮ᢏ⾡ࢆᛂ⏝ࡋ࡚ࠊ㧗⇕ఏᑟ⋡ࢆ᭷ࡍࡿ㖡ࢆ✚ᒙࡍࡿ࣮ࣞࢨ࣮⢊య⫗┒ἲࡣ᥋ྜᢏ⾡࡜ࡋ࡚኱࠸࡟ᮇᚅࡀ࡛ࡁࠊᑗ᮶ⓗ࡟ࡣ❧య㐀ᙧࡶྍ⬟࡞ᡭἲ࡛࠶ࡿࡓࡵࣄ࣮ࢺࢩࣥࢡࢩࢫࢸ࣒ࡢᙧᡂᢏ⾡࡜ࡋ࡚ࡶᮇᚅ࡛ࡁࡿࠋ6L& ᮦᩱ࡬ࡢ㖡ࡢ┤᥋ࡢ⁐᥋ࡣ㞴ࡋ࠸ࡀࠊ࡯ࡰྠ➼ࡢ⇕⭾ᙇ⋡ࢆ᭷ࡍࡿࢱࣥࢢࢫࢸࣥࢆ୰㛫ᮦ࡜ࡋ
࡚ 6L& ࡟ᣑᩓ᥋ྜࡋࠊࡑࡢୖ࡟㖡⫗┒ᒙࢆ⏕ᡂࡍࡿᢏ⾡ᴫᛕࢆ◊✲ࡋ࡚࠸ࡿࠋᮏ◊✲࡛ࡣ࠸ࡃࡘ࠿ࡢཌࡉࡢ 6L& ᯈᮦ࡜ࢱࣥࢢࢫࢸࣥᯈⷧ⭷ࡢᅛ┦ᣑᩓ᥋ྜᮦୖ࡛㖡⫗┒ࡾヨ㦂ࢆ⾜࠸ࠊᙧᡂࡉࢀࡓ㖡⫗┒ࡢᙧ≧ࡢホ౯࡜㟁Ꮚ㢧ᚤ㙾ほᐹࢆᐇ᪋ࡋࡓࠋ
㸰㸬ᐇ㦂᪉ἲ
౪ヨᮦ࡟ࡣ WPP ࠾ࡼࡧ WPPࡢD6L& ᮦࢆ⏝࠸ࡓࠋ୰㛫ᮦࡢࢱࣥࢢࢫࢸࣥ࡟ࡣ ⾲  :6L& ᥋ྜᮦୖ࡟ᐇ᪋ࡋࡓ㖡⫗┒ࡾヨ㦂᮲௳ࣂࣝࢡᮦ࡛࠶ࡿ WPP ࡢ⣧ࢱࣥࢢࢫࢸࣥ
㸦:㸧ᯈཬࡧ࡟ⷧ⭷ᮦ࡜ࡋ࡚ WPP ࡢ⣧: ⷧ⭷ࢆ⏝࠸ࡓࠋ6L& ᮦࡢ᥋ྜ㠃ࢆࢲ࢖ࣖࣔࣥࢻ

ࢫ࣮࡛ࣛࣜ㙾㠃◊☻ᚋࠊ: ᯈ࠶ࡿ࠸ࡣⷧ⭷ࢆ㔜ࡡྜࢃࡏࠊ୍㍈ຍᅽࡢ࣍ࢵࢺࣉࣞࢫࢆ⏝࠸࡚ ᗘ Υࠊᅽຊ 03Dࠊಖᣢ᫬㛫 Kࠊ$U 㞺ᅖẼ୰࡛᥋ྜࡋࠊ

:6L& ᇶᮦࢆస〇ࡋࡓࠋ:6L& ᥋ྜᮦୖ࡬ࡢ࣮ࣞࢨ࣮⢊య⫗┒ヨ㦂ࡣ኱㜰኱Ꮫࡢ࣐ࣝࢳ࣮ࣞࢨຍᕤࢩࢫࢸ࣒ࢆ⏝࠸࡚ࠊཌࡉ PP ࡢࢱࣥࢢࢫࢸᯈ
ᮦ6L& ヨᩱ࡟ࡣฟຊ :ࠊ࣮ࣞࢨ࣮⛣ື㏿ᗘ PPV ཬࡧ PPV࡛  ᅇࠊཌࡉ PP ࡢࢱࣥࢢࢫࢸ
ⷧ⭷6L& ヨᩱ࡟ࡣฟຊ : ࡛ࠊ࣮ࣞࢨ࣮⛣ື㏿ᗘ PPV ࡜PPV ࡛  ᅇࡢ⫗┒ᮦ〇సࢆ⾜࠸࣮ࣞࢨ࣮㢧ᚤ㙾࡟ࡼࡾほᐹ࡜ゎᯒࢆᐇ᪋ࡋࡓࠋ⾲  ࡟ᐇ᪋ࡋࡓヨ㦂᮲௳ࢆ♧ࡋࠊᅗ  ࡟࣮ࣞࢨ࣮㢧ᚤᅗ  ࣮ࣞࢨ࣮㢧ᚤ㙾ࢆ⏝࠸ࡓ㖡⫗┒ᒙࡢ㧗ࡉ࣭ᖜࡢ ᐃ㙾ࢆ⏝࠸ࡓ⫗┒ࡾᒙࡢゎᯒࡢᴫせࢆ♧ࡋࡓࠋ㧗ࡉཬࡧ࡟ᖜࡢ ᐃࡣᅗ  ࡟♧ࡍࡼ࠺࡟⫗┒⥺ࡢ୰ኸ㒊࠾ࡼࡧ୧➃㒊࡛ᐇ᪋ࡋࡓࠋ
㸱㸬◊✲⤖ᯝᅗ  ࡟࣮ࣞࢨ࣮⛣ື㏿ᗘ࡜⫗┒㧗ࡉࡢ┦㛵ࢆ♧ࡍࠋ⫗┒㏿ᗘࡀ PPV ࠿ࡽ PPV ࡟ቑຍࡋࡓ㝿࡟⫗┒㧗ࡉࡀῶ
ᑡࡋࠊPPV ࡜ PPV ࡣྠ⛬ᗘࡢ⫗┒㧗ࡉ࡛࠶ࡗࡓࠋヨᩱ  ࡛ࡣ 㹫㹫V ࡛  ࣛ࢖ࣥ࡟  ᅇࡢ⫗┒ࡾࢆᐇ᪋ࡋ࡚ࠊ
㧗ࡉࢆቑࡍࡇ࡜ࡀྍ⬟࡞ࡇ࡜ࡀ♧ࡉࢀࡓࠋ⫗┒㏿ᗘࡀ PPVaPPV ࡛ࡣῶᑡࡍࡿࡀ PPVaPPV ࡣྠ⛬ᗘࡢ⫗− 229 −

┒㧗ࡉ࡛࠶ࡗࡓࠋᅗ  ࡣ࣮ࣞࢨ࣮⛣ື㏿ᗘ࡜⫗┒ᖜࡢ┦㛵ࢆ♧ࡍࠋ⫗┒ᖜࡢഴྥࡣ⫗┒㧗ࡉ࡜ᴫࡡྠࡌഴྥ࡛࠶
ࡾࠊࢱࣥࢢࢫࢸࣥཌࡉࡀ PP ࡢሙྜࡣ⛣ື㏿ᗘ PPV ࡛኱ࡁࡃࠊPPV ࡜PPV ࡛ྠ➼࡛࠶ࡾࠊࢱࣥࢢࢫࢸࣥཌࡉࡀ PP ࡢヨᩱ  ࡛ࡣ⫗┒㏿ᗘࡀ
PPVaPPV ࡛ ࡣ ῶ ᑡ ࡍ ࡿ ࡀPPVaPPV ࡣྠ⛬ᗘ࡜࡞ࡿࠋ
ࢱࣥࢢࢫࢸࣥୖ࡟ᙧᡂࡉࢀࡓ㖡⫗┒ࡣ⛣ື㏿ᅗ  ྛヨᩱࡢ⛣ື㏿ᗘ࡜⫗┒㧗ࡉࡢ┦㛵ᗘࡀ㐜࠸࡯࡝༢఩య✚ᙜࡓࡾࡢ㔞ࡀከ࠸࡜࠸࠺㡰ᙜ࡞⤖ᯝ࡜࡞ࡿࠋᅗ  ࡣࢱࣥࢢࢫࢸࣥཌࡉࡀ PP ࡢ
ヨᩱ  ࡢ⫗┒ᒙࡢ᩿㠃 6(0 ほᐹ⤖ᯝ࡛࠶ࡿࠋ≉ᚩ࡜ࡋ࡚ࡣ࣮ࣞࢨ࣮⛣ື㏿
ᗘࡢ㏿࠸ PPV ࡜ PPV ࡣ㖡⫗┒ᒙ࡜ࢱࣥࢢࢫࢸࣥᇶᒙࡢ⃿ࢀゅࡀ㗦ゅ࡛࠶ࡾࠊࡲࡓ㖡⫗┒࡜ࢱࣥࢢࢫࢸࣥࡢቃ⏺
㒊࡟ ȝP ⛬ᗘ࡟ཌࡉࡢ⏺㠃཯ᛂ┦ࡀ᫂☜࡟ᙧᡂࡉࢀ࡚࠸ࡿࠋ⛣ື㏿ᗘ    ᅗ  ྛヨᩱࡢ⛣ື㏿ᗘ࡜⫗┒ᖜࡢ┦㛵PPV ࡛ࡣ⃿ࢀゅࡣ㕌ゅ࡜࡞ࡾࠊ㖡⫗┒࡜ࢱࣥࢢࢫࢸࣥࡢ㛫࡟㝽㛫ࡀ⏕ࡌ࡚࠸ࡿࠋ⛣ື㏿ᗘ PPV ࡛ࡣ࣮ࣞࢨ࣮㢧ᚤ㙾࡛ࡢホ౯࡛ࡣࢱࣥࢢࢫࢸࣥୖࡢ
㖡ࡣከࡃ࡞ࡿࡶࡢࡢࠊࢱࣥࢢࢫࢸࣥୖ࡟ࡓࡔ㖡ࡀ஌ࡗ࡚࠸ࡿࡔࡅ࡛࠶ࡾࠊヨᩱ  ࢆཧ⪃࡟ࡍࡿ࡜㏿࠸⛣ື㏿ᗘ࡛ࡢ㖡⫗┒ࡀ㐺ᙜ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋᅗ  ࡟ࡣ PPV ࡛  ᅇࡢ㖡⫗┒ࡾࢆᐇ᪋ࡋࡓ⤖ᯝࡶ♧ࡋ࡚࠸ࡿࡀࠊࢱࣥࢢࢫ
ࢸࣥ࡜ 6L& ࡢ㛫࡟ட⿣ࡀ⏕ࡌ࡚࠾ࡾࠊ」ᩘᅇࡢ㖡⫗┒ࡾࢆᐇ᪋ࡍࡿ࡟ࡣࢱࣥࢢࢫࢸࣥཌࡉࡀ୙㊊ࡋ࡚࠸ࡓ࡜⪃࠼
ࡽࢀࡿࠋ


㸲㸬⤖ㄽ
ࢱࣥࢢࢫࢸࣥୖ࡛ࡢ㖡⫗┒ࡾヨ㦂ࡣ㖡⫗┒ࡢ༢఩య✚ᙜࡓࡾࡢ㔞ࡣ࣮ࣞࢨ࣮⛣ື㏿ᗘࡀ㐜࠸᪉ࡀ኱ࡁࡃ࡞ࡿࡀࠊ㖡࡜ࢱࣥࢢࢫࢸࣥ⃿ࢀゅࡶ㕌ゅ࡜࡞ࡾ๤㞳ࡍࡿഴྥࡀㄆࡵࡽࢀࠊ
ᑠࡉ࡞⃿ࢀゅ࡛㐺ษ࡞཯ᛂ┦ࡀᙧᡂࡉࢀࡿ᮲௳ࡢ᥈ồࡢᚲせᛶࡀ♧ࡉࢀࡓࠋᑗ᮶ⓗࡢ 'ᙧᡂࢆ┠ᣦࡋࠊࢱࣥࢢࢫࢸࣥཌ
ࡉࢆ PP ⛬ᗘ࡜ࡋࠊ⛣ື㏿ᗘᅗ  ヨᩱ  ࡢ㖡⫗┒ࡢ᩿㠃 6(0 ほᐹ⤖ᯝPPV ࢆ୰ᚰ࡟」ᩘᅇࡢ㖡⫗┒ࡀྍ⬟࡞᮲௳ࢆ᥈ồࡋ࡚࠸ࡃணᐃ࡛࠶ࡿࠋ
㸦ඹྠ◊✲ศ㔝㸸ࢽ࣮ࣗࣀ࣮࣐ࣝࡶࡢ࡙ࡃࡾࢥࣥࢯ࣮ࢩ࢔࣒ᐊ㸧− 230 −ᅜ㝿ඹྠ◊✲ㄢ㢟࣭◊✲ሗ࿌᭩㻌㻌㻌

Numerical investigations of Arc Characteristics Parameters Evolution in GMAW-based WAAM of Al Alloy With an
Integrated Model
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, China
Wenyong Zhao
1.

PurposeUnderstanding the arc plasma characteristic parameters evolution is of great significance for guiding the improvement of theforming accuracy and performance of GMAW-based WAAM in engineering [1-2]. We integrate the arc plasma and metal vapor
into the GMAW-based WAAM model to realize the full coupling of arc plasma, Al vapor, droplet and molten pool. The integrated
GMAW-based WAAM model will have the ability to reproduce the complicated physical phenomena and the forming processof deposited layer without inputting any empirical parameters related to the arc plasma. By the model, the evolution of arc plasma
characteristic parameters, which are highly dependent on the shape of droplet and moving molten pool, are simulated andanalyzed.
2. Numerical modelling
The integrated model of GMAW-based WAAM involves the heating of arc plasma, the transfer of droplet, the vaporization ofhigh-temperature metal, the growth and solidification of molten pool, and the formation of deposited layer. The magnetothermalhydrodynamic equations describing the above complex phenomena are solved in the whole domain, and the volume of fraction(VOF) method is used to track the gas-metal interface and the moving reference frame approach is employed to realize therelative motion of torch and substrate.
The computational domain, with dimensions ͺͲ ݉݉ ൈ ͳͲ ݉݉ ൈ ͳͷ ݉݉ , is shown schematically in Fig.1. The
computational domain is divided into gas-phase and metal-phase domains to conveniently depict the relative movement between
the substrate and wire electrode. The computational domain is discretized into a mixture of hexahedral and pentahedral nonuniform cells, as shown in Fig.2. The mesh near the wire electrode is fine, with a minimum size of 100 ߤ݉ in the Z direction
and 12 ߤ݉ in the direction of rotation about Z axis, to handle the physical variables with high gradient, the mesh away fromthe deposited bead is coarse, with a maximum size of 600 ߤ݉, to reduce the calculation times, and the number of cells is 413268.

Fig.1 Schematic of the computational domain.
3.

Fig.2 The mesh of computational domain.

Results and discussions

Fig. 3 describes the evolution of mass fraction of Al vapor during the droplet transfer process of GMAW-based WAAM, it canbe seen that the Al vapor concentration in the arc space becomes higher and higher with the growth of the droplet, and the Al
vapor concentration level decreases again after the droplet detaches and enters the molten pool. In the process of droplet growth,
the Al vapor is mainly distributed near the bottom of droplet, which indicates that the liquid metal on the droplet surface is theprincipal source of Al vapor, not on the surface of the molten pool. In addition, it can be found when the droplet transfers into themolten pool, it will also draw the Al vapor and argon mixed gas into the molten pool together, and the Al vapor entering themolten pool then diffuses under the strong convection of liquid metal.
During droplet transfer, the increase of Al vapor leads to the decrease of the arc plasma temperature, as presented in Fig. 4. The
temperature profile of arc plasma is no longer symmetrical along the wire axis, but inclined to a certain extent due to the influenceof surface morphology of molten pool. From t=1.0052 s to t=1.0092 s, the average temperature of arc plasma decreases, and the
maximum temperature drops from 11700 K to 10200 K. However, with the further reduction of the distance between the droplet− 231 −

and the molten pool, especially at the time t=1.0132 s, the arc plasma temperature rises instead, and the maximum temperature
exceeds 17000 K.

Fig.3 The local distribution of mass fraction of Al vapor
during the droplet transfer process in the Y=0 plane.

Fig.4 The evolution of the peak value of temperature in
the arc plasma during a wire motion period.

As shown in Fig. 5, it can be seen that with the growth of droplet, the electric potential of arc column decreases, and the current
density profile begins to shrink. As the arc column length decreases more than the electric potential, the electric potential gradientin the arc column region increases. Especially at t=1.0132 s, the increase of electric potential gradient leads to a significant
enhancement of current density. At this time, the Joule heat generated by the increase of current density exceeds the radiation
heat loss caused by Al vapor, which makes the plasma temperature in the arc column region increase dramatically.

Fig. 5 The local distribution of electrical potential and current density in the Y=0 plane during the droplet transfer process:(a1) - (a4) electric potential; (b1) - (b4) current density.
4. Conclusions

The model predicts that in a droplet transfer period, with the growth of the droplet, the average temperature of arc plasma
decreases, the current path profile shrinks. When the arc column length decreases beyond the potential, the potential
gradient and corresponding current density significantly increase, which makes the Joule heat generated by the increase ofcurrent density exceed the radiation heat loss caused by the Al vapor, and the plasma temperature increase dramatically.
5.

References[1] Ou W, et al. Fusion zone geometries, cooling rates and solidification parameters during wire arc additive
manufacturing[J]. Int. J. Heat Mass Tran. (2018).
[2] Cadiou S, et al. 3D heat transfer, fluid flow and electromagnetic model for cold metal transfer wire arc additive
manufacturing (Cmt-Waam) [J]. Addit. Manuf. (2020).
6. Acknowledgement

This work was performed under the Joint Usage/Research Center on Joining and Welding, Osaka University. The
author sincerely thanks Prof. Tanaka, Prof. Tashiro and Prof. Murphy for their help in numerical modelling.
(Department of joint research project: Energy Control of Processing)− 232 −

Arc properties in the binary and ternary gas mixtures during arc welding
School of Materials Science and Engineering, Chongqing University of Technology, China
Xinxin WANG
1. Purpose
Gas mixtures are employed in a wide range of arc welding processes to improve the arc property and thus the welding
efficiency and weld quality [1]. There is a wealth of research reports on such arcs. However, metal vapours emanating from theelectrode are rarely considered in the research to date. Since the metal vapour significantly affects the arc properties and theinterplay between the arc and the electrode, the related issues for further understanding such arc plasma remain to be addressed.
Here we present a numerical investigation of the iron vapour and oxygen transport in activated tungsten inert gas (A-TIG)
welding of stainless steel SUS304, in which 0.5% oxygen was added to the shielding gas to improve weld penetration.
2. Numerical model
Conservation equations for iron vapour and oxygen transfer were required [2]:w U YAwt

  J A  S A ,   U v YA

(1)

where YA represents the mass fraction gas A (iron vapour or oxygen), SA is the source term, and J A is the diffusive mass flux ofgas A, given by
JA

U

mA mB
M

2

x
P
E
T
DAB
x A  DAB
 ln P  DAB
E  DAB ln T ,(2)

the meanings of the other variables are the same as those in [2].
3. Results and discussions
The radial profiles of the iron vapour mass fraction 0.05 mm above the weld pool and the heat fluxes for A-TIG and TIG arc
are shown in Fig. 1. Fig. 1(a) shows that the iron vapour mass fraction at radii within 0.001 m is over ten times higher in A-TIG
than TIG welding; the maximum values for TIG welding is about 0.0028, while that for A-TIG welding is over 0.06. As shownin Fig. 1(b), the maximum heat flux at the anode surface decreases for the TIG arc and increases for the A-TIG arc when ironvapour is considered for both cases. At the same time, the distribution range expands for TIG but becomes more constricted near
the edge for A-TIG. However, the change in heat flux caused by the iron vapour is minor and less than 5×106 W/m2. Therefore,
their influence on the temperature distribution of the weld pool is quite small.
(a)(b) 1.0x108

0.08
A-TIG
TIG

TIG without Fe
TIG with Fe
A-TIG without Fe
A-TIG with Fe

8.0x107qa (W/m2)

YFe

0.06

0.04

0.02

6.0x1074.0x1072.0x107

0.00
0.000

0.002

0.004
r(m)

0.006

0.0
0.000

0.008

澳

0.001

0.002

0.003

0.004

r (m)

Fig. 1 (a) Iron vapour distribution 0.05 mm above the weld pool and (b) heat flux at the weld pool surface− 233 −

0.005

澳The arc temperature and oxygen distributions are shown in Fig. 2. It can be seen in Fig. 2(a) that the oxygen is concentrated
around the arc axis and near both the workpiece and electrode; in these regions, the oxygen concentration is much higher than its
input value, i.e. 0.005, with a maximum of about 0.095 close to the cathode tip. Such a distribution of the oxygen is attributed tothe transport balance due to the concentration gradient, temperature gradient and convection induced by the plasma flow,
particularly the last two aspects, as shown in equation (2). The radial profiles of oxygen mass fraction and arc temperature 0.05
mm above the weld pool are shown in Fig. 2(b). It is seen that the oxygen mass fraction generally increases with radius, except
for decreases from r = 0 mm to r = 0.5 mm and from r = 4.5 mm to r = 6.0 mm. The mass fraction exceeds its input value of
0.005 from around r = 1 mm to the edge, approaching a maximum of about 0.01 within the extent of the weld pool obtained
previously. If considering the iron vapour, as depicted in Fig. 1(a), the oxygen concentration is in the same order of magnitudeof the iron vapour near the weld pool; as a result, the oxygen distribution and transfer towards the weld pool surface will be
influenced prominently and its concentration over the weld pool is not homogeneous in any sense.
YO

T(K)

17000
15000
13000
11000
9000
7000
5000
3000
1000

0.02
0.022

z (m)

0.024
0.026

(b)

0.095
0.085
0.075
0.065
0.055
0.045
0.035
0.025
0.015
0.005

12000

0.020

YO

10000

T

0.015

8000
0.010

6000

0.028
Input oxygen mass fraction

0.005

0.03

T (K)

0.018

YO

(a)

4000
2000

0.032
-0.005

0

0.000
0.000

0.005

r (m)

0.005

0.010

0.015

r (m)

澳

澳

Fig. 2. The temperature and oxygen mass fraction distributions of (a) the arc plasma and (b) 0.05 mm above the weld pool surface in an argon
arc with 0.5 wt% oxygen introduced

Further, we developed an arc model for considering simultaneously the iron vapour and oxygen transfers in the A-TIG welding
process [3]. In this case, the oxygen input value is 0.02 by mass fraction and the arc current is 150 A. Arc temperature andcomposition distributions are shown in Fig. 3. Fig. 3(a) shows the arc temperature distribution, it is a well-known bell shape witha peak temperature close to 17 000K. Fig. 3(b) – (d) shows the mass fraction distributions of argon, iron and oxygen, respectively.
The argon concentrates the periphery of the arc, while the oxygen and iron distribute more in the core region, these results are
consistent with our previously reported results obtained via the arc model of the two-gas transport system.
(b)

0

T(K)

z(m)

0.002
0.004
0.006
0.008
0

0.002

0.004

0.006

r(m)

16600
14600
12600
10600
8600
6600
4600
2600
600

0.008

0

YAr

0.002

z(m)

(a)

0.01

− 234 −

0.004

0.979
0.977
0.975
0.973
0.971
0.969
0.967

0.006
0.008
0

0.002

0.004

0.006

r(m)

0.008

0.01

澳

(d)

0

YFe
0.001820.001620.001420.001220.001020.000820.000620.000420.00022
2E-05

z(m)

0.002
0.004
0.006
0.008
0

0.002

0.004

0.006

r(m)

0

YO

0.008

0.002

z(m)

(c)

0.004
0.006

0.01

0.008
0

0.002

0.004

0.006

r(m)

0.03050.02750.02450.02150.01850.01550.01250.00950.00650.00350.0005

0.008

0.01

澳

Fig. 3 Temperature and composition distributions in TIG arc in the argon-oxygen-iron gas system: (a) temperature; (b) argon; (c) iron; (d)oxygenDriving by the gradient of the mass fraction, the iron diffuses towards the cathode and is transported to the edge of the arc by
the plasma flow, while suppressed by the temperature gradient. The maximum oxygen mass fraction is higher than the input
value of 0.02. In other words, the oxygen distribution near the anode is reduced by the presence of the iron. However, the model
is simplified explicitly by excluding the weld pool, and the numerical results need to be validated quantitatively by the experimentin future work.
4. Conclusions
It was found that the iron vapour emanating from the weld pool in A-TIG welding is significantly higher than that in TIG
welding, in which oxygen is not present in the weld pool. The presence of the iron vapour results in a reduced heat flux at theweld pool surface in TIG welding, while an increased heat flux at the weld pool in A-TIG welding, extending their radial
distributions for TIG welding and constricting them in A-TIG welding. A significant concentration of oxygen near the arc axis
occurs. The oxygen distribution in the arc plasma immediately above the weld pool varies with radius. The oxygen distribution
in the surface region of the weld pool is a critical factor since it strongly affects the flow in the weld pool and consequently theweld pool shape and depth. For a further developed model in which the distributions of the argon, oxygen and iron vapour are
considered simultaneously, the above prediction are demonstrated.
References[1] M. Tanaka, J. J. Lowke, Predictions of weld pool pro¿les using plasma physics, J. Phys. D: Appl. Phys. 40 (2007) R1–
R23.
[2] A. B. Murphy, The effects of metal vapour in arc welding, J. Phys. D: Appl. Phys. 43 (2010) 434001 (31pp).
[3] H. Park, M. Trautmann, K. Tanaka, M. Tanaka, A. B. Murphy, A computational model of gas tungsten arc welding ofstainless steel: the importance of considering the different metal vapours simultaneously, J. Phys. D: Appl. Phys. 51 (2018)202395
Acknowledgement
This work was performed under the Joint Usage/Research Center on Joining and Welding, Osaka University. The author
sincerely thanks Prof. Tanaka, Prof. Tashiro and Dr. Murphy for their great help.
(Department of Joint Research Project: Energy Control of Processing)− 235 −

The mechanism of dual-stagnation points flow phenomenon in keyhole plasma arc melt pooland corresponding control strategy
Engineering Research Center of Advanced Manufacturing Technology for Automotive Components Ministry of Education,
Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, China
Jingbo Liu
1.

PurposeThis study investigates the mechanism behind the double stagnation points flow phenomenon in the keyhole plasma arc

welding (KPAW) melt pool and develops a corresponding control strategy. Positional information on flow stagnation points was
obtained using the macroscopic morphology of the melt pool and liquid flow velocity measurements. The position of thesestagnation points, determined by the directional flow of liquid metal, is crucial for characterizing the stability of the welding
process. The study delves into the driving force mechanism that produces stable directional flow and a uniform temperature
distribution within the melt pool. A significant discovery of this research is the identification of high-speed directional materialtransport channels within the melt pool. Furthermore, a correlation mechanism between the positions of stagnation points andthe stable flow and temperature distribution has been constructed. To address the unsteady and destabilized stages of the welding
process, a dynamic material stability transfer control strategy was designed, based on liquid flow velocity and temperature
distribution. This strategy ensures a smooth transition during the destabilized stage and rapid self-healing of the melt pool. Overall,this study provides a novel control strategy and a theoretical foundation for the automation and enhancement of the KPAW
welding process, highlighting its necessity in advancing welding technology.
2.

Experimental setup and procedure
The KPAW system consists of a torch, a containing argon, a filler wire feeding system, and a KPAW power source [1], asshown in Fig. 1. The KPAW current is 140A in the EN setting, 170A in the EP setting [2], as shown in Fig. 1 (a). The EN and EP
transitions have a cycle of 21/4ms. These transitions achieve the variable polarity function in KPAW process. The gas flow rates
for plasma and protective are 3.5L/min and 20L/min, respectively. The anterior section of the melt pool refers to the portion
directly facing the direction of arc progression, while the back section is opposite to it. The side of the pool near the torch nozzle
is considered the upper section, with the opposite direction being the bottom section. Connecting the anterior section and theback section is the melt pool sidewall.

Fig. 1 Schematic diagram of KPAW process pattern acquisition system. (a) KPAW welding process camera position− 236 −

distribution. (b) Photographic results of the anterior section of the melt pool. (c) Photographic results of the sidewall of the melt
pool. (d) Photographic results of the back section of the melt pool.
3.

Results and discussions
By introducing grooves and placing filler wire, the convection pattern during welding was observed. The convection patternof the filler wire is obtained by tracking aluminum oxide. For different filler wire speeds, the convection patterns of the melt filler
wire-generated aluminum oxide on the all section are similar, as shown in Fig. 2. Furthermore, the Cartesian coordinates (x, y, z)
describing the convection of aluminum oxide within the melt pool originate from the upper section near the center of the wire
entering position. x is oriented opposite to the weld direction, y is perpendicular to the weld direction and points towards the
sidewalls of the molten pool, while z is directed along the depth of the molten pool. As indicated by Fig. 2 (a), the metal melted
on the anterior section edge convections to the sidewall as well as the depth of the melt pool. A change in the convection direction
on the leading edge, from the z-direction to the y-direction, defines the transition region as the anterior stagnation point. With
increasing filler wire speed, the transfer location gradually deepens, causing the depth of the leading-edge stagnation point toincrease. Based on multiple experimental sets, the depths of the anterior stagnation points on the leading edge are found to be 3.2mm reduced to 4 mm at filler wire speeds of 0 cm/min to 240 cm/min. The stagnation point gradually gets deeper as the speed
rises. At a filler wire speed of 240 cm/min, the depth is 0.8 mm greater than that with no filler wire.

Fig. 2 Tracer particle movement and positions for different filler wire speeds. (a) Flow behavior of the anterior section. (b)Flow behavior of the sidewall. (c) Flow behavior of the back section.
Liquid metal from the sidewall convections from the anterior section to the back section, as shown in Fig. 2 (b). It is evident
that the convection pattern of liquid metal from different depths of the anterior section is distinct. Aluminum oxide near the upper
section gradually rise and solidify in the back section near the upper section. In contrast, aluminum oxide in the central region of
the melt pool convection directly toward the back section. Liquid metal near the bottom section convections towards the bottom
section and eventually exits the melt pool. On the back section, aluminum oxide exhibit two distinct reverse convections, as
illustrated in Fig. 2 (c). One convection is directed towards the upper section, and the other is directed towards the bottom section.
Consequently, there are also melt pool convection stagnation points on the back section. Based on the convection observations,at filler wire speeds from 0 cm/min to 240 cm/min, the depths of the stagnation points on the back section reduced from 3.1 mm
to 4.1 mm. Although the position of the back section stagnation point gradually deepens with increase filler wire speed, it is closer
to the upper section than the anterior stagnation point.
We propose a comprehensive control strategy for stabilizing KPAW welding, divided into three stages, as depicted in Fig.
3. Process parameters are optimized before welding to enhance the stability of the welding process. During welding, dynamic
regulation of wire feeding facilitates control of the melt pool’ s dynamics, ensuring smooth transitions between non-steady andsteady states. In the event of unexpected destabilization due to sudden environmental changes during welding, the control
methods outlined in this research enable rapid self-healing of the melt pool. Based on the welding strategy proposed in this paper,
we have completed the initial development of the online control system and designed a three-dimensional controllable wire
feeding system for welding. This system enables real-time data acquisition and dynamic wire feeding control during the welding
process, as illustrated in Fig.3.

− 237 −

Fig. 3 Usage scenario and research framework.
4.

Conclusions

In the KPAW process, a stabilization control strategy based on the wire feed speed is proposed. By adjusting thewire speed to increase to 240 cm/min in a short period, a smooth transition of the unstable melt pool and self-healingof the destabilization melt pool can be effectively achieved within 75 ms.
5.

References[1] B. Xu, S. Tashiro, M. Tanaka, F. jiang, S. J. Chen, “Physical mechanisms of fluid flow and joint inhomogeneity invariable-polarity plasma arc welding of thick aluminum alloy plates”, Physics of Fluids, 33, 087103 (2021).
[2] D. Wu, S. Tashiro, X. Hua, and M. Tanaka, “Analysis of the energy propagation in the keyhole plasma arc welding using
a novel fully coupled plasma arc-keyhole-weld pool model,” Int. J. Heat Mass Transfer 141, 604–614 (2019).
6.

Acknowledgement

This work was performed under the Joint Usage/Research Center on Joining and Welding, Osaka University.
The author sincerely thanks Prof. Tanaka, Prof. Tashiro and Prof. Murphy for their help in numerical modelling.
(Department of joint research project: Energy Control of Processing)− 238 −

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Effect of constraint state in controlling residual stress to inhibit crack generation in laser powder
bed fusion process
Yaqiong Ge (Taiyuan University of Science and Technology)
Anan Yang (Taiyuan University of Science and Technology)
Ninshu Ma (JWRI, Osaka University)
Qian Wang (JWRI, Osaka University)
Abstract
Additive manufacturing (AM) is prone to excessive tensile residual stresses, leading to cracking oreven failure, seriously hindering its wide application. Therefore, controlling residual stress during
processing to avoid crack formation is crucial for reliable AM. In this study, through alterations in
the form of substrate to modify its constraint effect on the resulting structure, the impact of theconstraint state on the microstructure, defects, residual stress and fracture characteristics with theaim of mitigating the likelihood of cracking in laser powder bed fusion (LPBF) was systematicallystudied. The results showed that the microstructure of all the specimens consists of fine dendritic,
cytosolic, and columnar. Specimens with un-grooved substrates exhibited more holes and cracks.
The crack density in specimens with grooved substrates was reduced by 71%, reaching a relative
density of 98.94%. Tensile test results showed that the mechanical properties of the grooved
specimens were excellent, with the tensile strength and yield strength higher than the un-grooved
ones. And the results of the residual stresses indicated significantly lower tensile residual stresses in
specimens with grooves, mitigating the extent of crack propagation. These findings provided a new
approach to LPBF of crack-free components with excellent mechanical properties.
1. Materials and methods
The 316L austenitic stainless steel powder used in this study was prepared using the gas atomization
method and has a particle size range of aȝm. The forged 304 austenitic stainless steel plate wasuse as the substrate with dimensions of 165×165×25mm3. As a comparative experiment, thesubstrate was grooved with the objective of reducing thermal and constraint stresses in the print
layer without distorting the substrate. Prior to deposition, each substrate underwent cleaning anddegreasing with ethanol. After completing the experiment on optimizing parameters, the LPBF was
carried out, and the process parameters were laser power of 120W, scanning speed of 1000m/s,
rotation angle between layers of 67°, scanning strategy of Zigzag, and thickness of ȝm. The sameprocess parameters were applied to prepare the specimens on both grooved and un-grooved
substrates, respectively, with the stainless steel blocks sample measuring 50×50×3mm3. All
manufacturing processes were carried out with a protective argon atmosphere and the oxygen
content in the forming chamber was maintained below 100ppm.

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2. Conclusions
In this study, an optimized substrate shape was proposed to change the constraint state of thesubstrate, thereby mitigating the excessive heat accumulation and confining stresses generated
during the LPBF process and addressing the problem of excessive residual stress with conventional
substrate shapes. The following conclusions were drawn from the study:(1) The relative density of the specimens manufactured with the grooved substrate was as high as
98.94%, with a 71% reduction in crack density. In contrast, the specimens formed with the ungrooved substrate exhibited more serious defects, such as holes and cracks.
(2) The tensile strength and yield strength of the grooved samples surpassed those of the un-grooved
ones. The trend in Vickers hardness was consistent with the tensile properties, which was related tothe coarsening of grain size and poorer densification due to heat accumulation during the forming
process. There was a correlation between plasticity and relative density, with lower relative density
reducing plastic deformability resulting in lower elongation.
(3) Residual stress analyses showed that the samples on both the un-grooved and grooved substrate
showed tensile residual stresses, but the residual stresses in the grooved specimens wereconsiderably lower than those in the un-grooved specimens; the lowest residual stresses in thegrooved specimens were attributed to the lower thermal and confinement stresses generated during
the LPBF process.

ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁં߻ߑଆԿմੵ෾໼ʥ

− 257 −

Numerical analysis of welding deformation and residual stress: Submerged friction stirprocessing of duplex stainless steel
Cao Fujun (Nanjing University of Aeronautics and Astronautics)
Ma Ninshu (JWRI, Osaka University)
Abstract
In the present work, duplex stainless steels (DSSs) SAF2507 were friction stir processed withflowing cryogenic medium mixed with liquid nitrogen and industrial ethanol. Homogeneous
ultrafine grained (UFG) dual-phase structure with ferrite (Į) and austenite (Ȗ) grains with average
size of around 1 ȝP was obtained due to the significantly lower peak temperature and shorter
high-temperature duration. The developed UFG dual-phase structure enabled a dramaticenhancement of yield strength by about 22%, while maintaining a high elongation of 55% owing
to the excellent strain hardening capacity. As a result, the enhanced strength-ductility synergy wasachieved by cryogenic friction stir processing. Also, the obtained UFG dual-phase structure helps
with enhancing corrosion resistance. This work provides a new strategy for preparing uniform
UFG DSSs with outstanding mechanical properties and anticorrosion.
1. Materials and Methods
1.1 Materials and preparation
The commercial SAF2507 DSS plates, 4 mm in thickness, 200 mm in length and 100 mm inwidth, were used as the base material in this work. Prior to CFSP, the cryogenic cooling medium
with approximate temperature range between -90 °C and -100 °C was prepared throughcompletely mixing liquid nitrogen with industrial ethanol. Then, DSS plates were tightly fixed andfully submerged into these cryogenic mediums. Subsequently, various CFSP with additional
flowing cryogenic medium were conducted using two different rotational rates of 1000 and 1500rpm at a same traverse speed of 60 mm/min (hereafter correspondingly defined as CFSP1000 and
CFSP1500). The schematic illustration of CFSP was presented in Fig. 1a. By contrast, air-cooled
FSP (AFSP) specimens were also processed with optimized combination of rotation rate andwelding speed (800 rpm-60 mm/min). A W-Re tool (Fig. 1b) with a cylindrical shoulder 15 mm indiameter and a conical pin 3 mm in length was used in this work. The diameters of pin root and tip
were 8 mm and 6 mm, respectively. The plunge depths of friction stir tool during AFSP and CFSP
were the same value of 0.2 mm along the normal direction (ND). The processing direction (PD)and traverse direction (TD) were, respectively, parallel and perpendicular to the rolling directionof BM. The schematic diagram is presented in Fig. 1.

Fig. 1. (a) Schematic configurations of CFSP process and wireless temperature measurement system, as well as− 258 −

sampling methods for microstructural and mechanical characterization, (b) structure of W-Re tool, (c) dog-bone
shape tensile sample extracted from the processed zone along the TD.

1.2 Simulation calculation and temperature measurement
To understand the tool-induced heat and deformation during friction stir processing,
ABAQUS simulation software with coupled Eulerian-Lagrangian (CEL) model was used toinvestigate the heat evolution and deformation behavior during welding. The corresponding CEL
simulation model and actual temperature measurement system (see fig. 2d) are shown in Fig. 2.
(d)Fig. 2. Schematic diagram of CEL and temperature measurement: (a)~(c) CEL mode; (d) Temperature
measurement system.

2. Conclusions
Homogeneous UFG duplex stainless steels were prepared by submerged FSP with flowing
cryogenic medium mixed with liquid nitrogen and industrial ethanol. The critical conclusions canbe drawn as follows:(1) Homogeneous UFG dual-phase structure with average grain sizes of 1.11ȝP (Į) and 0.89 ȝP(Ȗ) was successfully acquired by cryogenic FSP. Compared to conventional FSP, the grain
refinement with more efficiency is primarily attributed to the increased strain rate and highcooling rate during cryogenic FSP, which not only significantly improve the DRX process but also
greatly inhibit the growth of recrystallized grains.
(2) Compared with BM and conventional FSP sample, the optimized cryogenic FSP sample
manifests higher YS and UTS of 950 and 1107 MPa, and strongly enhanced corrosion resistance,
while the total elongation is notably raised to 55%, approaching the original BM.
(3) After cryogenic FSP, the retained dislocations and significantly dispersed and refineGĮDQGȖgrains with considerable HAGBs, promote the occurrence of incompatible deformation between
constituent grains during tensile deformation, which collectively inhibit the dislocations slip andboost the dislocations generation and pile-ups, thus improving the YS and hardness.
(4) Benefiting from the further stimulated incompatible deformation between Į and Ȗ phases forcryogenic FSP sample, larger amount of GNDs are generated in dual-phase interfaces and graininteriors, which maintains a higher level of strain hardening capacity than that of conventional
FSP sample. The planar slip bands and deformation twins formed in Ȗ grains are also responsible
for the increased strain hardening ability at a high strain state.

ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁં߻ߑଆԿմੵָ෾໼ʥ

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Micro-patterning configuration by nanosecond laser ablation on the Al alloy surface:experimental observation and theoretical modeling
Suyu Wang (Jilin university)
Ningshu Ma (JWRI, Osaka university)
Abstract
Laser inducted heat and the ablation of materials are the key issues in material micronano precision processing and surface engineering. In this study, an FEM model wasdeveloped specifically for the laser ablation process for describing the dimensions of
micro-patterning and temperature distribution. The aim of this research is to provide a
visual simulation tool for key technical issues and analyze the influence of multiple
complex laser parameters on the temperature distribution. A good agreement between
experimental and model-predicted micro-patterning was observed, indicating high model
accuracy. Complementary studies that consider both experimental and thermal simulation
data at the same time are desirable to gain insight into micro-processing phenomena.
Keywords: Nanosecond laser ablation; element deletion; laser micro-patterning;temperature distribution
1. Materials and methods
1.1 laser ablation process
A 2 mm thick A6061 Al alloy (Al-1.2 wt% Mg-0.2 wt% Si) was used as basematerials. The laser ablation process was conducted via a nanosecond laser system (SP050 P-A-EP-Z-F-Y, SPI
Lasers), and the focusednanosecond laser beam wasscanned with a pulsed
width of 7 ns, frequency of
600 KHz, and laser beam
diameter of 40 ȝm. The
surface and cross-sectional
morphologies of processed
micro-patterning were observed,
Fig. 1 Schematic of laser ablation process.
as shown in Fig. 1.

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1.2 Material model and heat source model
The laser ablation process on Al alloy surface was simulated using finite element
modeling method based on the commercial software Abaqus. The main physical issues in
the laser ablation process include thepulse laser motion and attenuation. The
model dimensions and meshingconditions are detailed for coarse meshand fine mesh, as presented in Fig. 2.
After a pulse is fired, the laser focus
position moves up relatively, which isequivalent to retracting a certain
distance. When the retracting distanceis close to the effective etching depth
Fig. 2 (a) Geometric dimensions and meshing;of the previous pulse, the groove(b) physical parameters of the Al alloy.
depth tends to be stable.
2. Conclusion
A three-dimensional time-dependent simulation of pulsed laser ablation was
examined in the research. The main consideration was the heat effect of the incident laser
hence the simulation is based on the heat equation. The micro-patterning (groove structure)
was generated in the laser ablated area, and quantities of discrete micro/ nano particles
were formed around the heat-affected zone (HAZ) under the function of laser radiation
and recoil pressure. The ejected materials (Al alloy) were redeposited on the edges ofprocessed grooves to form teeth. The comparison images of different laser parameters arelisted, and a good agreement between experimental and model-predicted groove
dimensions was observed. When the laser power was low, there was a certain error in thecomparison between the experimental results and the simulation results owing to theoverflow of the molten metal was more extensive with a lower laser power, and it wasdifficult to predict the flow process. The groove dimension with high laser power
parameters was relatively stable, and the prediction performance is improved.

ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁં߻ߑଆԿմੵָ෾໼ʥ

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Al heat affected zone-less resistance element welded lap joints of Al alloy and 1 GPa class steel:Transition of microstructure and fracture with heat transfer
Seungyeop Baek (Korea Automotive Technology Institute),
Dongjin Kim (Korea Institute of Industrial Technology),
Ninshu Ma (JWRI, Osaka University)

Abstract
In this study, Al joint systems without heat-affected zones (HAZ) were developed on Al/Fe alloy lap
joints fabricated by resistance element welding (REW). The robustness of the joints with and without
HAZs was quantitatively evaluated to consider another side effect in REW Al/Fe alloy systems.
Compared to conventional REW, removing the Al HAZ not only alters the steel properties, but also
reduces the work hardening of the Al alloy due to the difference in the distinct heat transfer paths.
Furthermore, the presence of Al HAZ significantly influenced the hardness characteristics of themolten steel portion. In the cold wall configuration without Al HAZ, hardness values exceeding thoseof the hot wall by approximately 100 Hv or more were observed. At a welding current of 10.5 kA, thehot wall configuration demonstrated an approximate 30 % increase in tensile shear load and a 66 %increase in displacement compared to the cold wall configuration without HAZ. In the cold wallconditions, interfacial failure (IF) was not attributed to microstructural disparities but was linked to
the formation of an inherent notch root when S20C melted due to the absence of Al HAZ. Contrary toprevious reports, the presence of HAZ in Al alloys results the production of tough steel through REW.
1. Materials and methods
Figures illustrates the Al HAZ-less REW process along with its conceptual definition. For REW, a
conventional RSW system commonly used in the mass production of automobile structures was
adopted, as depicted in Fig. (a). Fig. (b) provides an overview of the REW process, including detailed
dimensions of each base material (BM) and the corresponding REW parameters. In the REW
procedure, first, we pre-riveted the element (S20C) onto theAA5052-H32 alloy. The upper BM(AA5052-H32: 100 mm × 30 mm × 2.5 mm), with the S20C element component, and lower BM(SPFC980: 100 mm × 30 mm × 1.6 mm) were then aligned and securely fixed to the fixture jig, andsubsequently, the welding process was initiated. During the REW process, we applied an insulating
barrier coating (polyvinyl chloride-based coating) and introduced gap between the S20C rivet element
and AA5052 to suppress the Al HAZ generation. As illustrated in Fig. (e), the coating layer is applied
to the area where the steel element contacts the upper aluminum plate, as well as to the column portionof the element, and indicated by the red line. As shown in Fig. (c), a hot wall and a cold wall are− 262 −

formed due to the difference causedby the gap and the coating layer.
During the REW, the following
specific parameters were set: a fixedpressing force of 2.45 kN and an
energization time of 200 ms. The
current was set to 8.5, 10.5, and 12
kA. We directly measured thetemperature of each material at
specific positions using thermos
couples (k-type, Temperature range:
0–ƕC), to validate the Al HAZless phenomenon empirically, as
shown in Fig. (d). The detailed
geometry used to measure thetemperatures of the hot and cold
walls is depicted in Fig. (e).
2. Conclusions
By implementing the REW process, Al HAZ-free lap joints involving AA5052 and SPFC980 weresuccessfully achieved. The inhibition of an Al HAZ prompted a thorough investigation into changes
affecting heat transfer, microstructure, and interface morphology in comparison to conventional
methods. Additionally, we examined the resultant impact on the mechanical properties of the joint.
The key findings from this research can be summarized as follows.
1). A notable disparity in the hardness existed between the Al HAZ in the hot wall case and the Al
present in the cold wall case without a HAZ. This discrepancy was rooted in the contrasting pathwaysof microstructure evolution and texture development.
2). The underlying cause for the incidence of IF in the cold wall case was not attributed tomicrostructural disparities. Instead, it was linked to the formation of an inherent notch root when S20C
melted due to the absence of an Al HAZ.
3). Our findings underscore that although an Al HAZ-less AA5052/1 GPa class steel lap joint can beeffectively developed, the thermal behavior during the process must be considered and its effects are
due to the geometric joint characteristics.

‫ڠ‬ಋ‫ڂݜ‬෾໼ʁં߻ߑଆԿմੵָ෾໼ − 263 −

Robust joining of FGH98 superalloy to DD5 single crystal by modulating interdiffusion behavior
with Ni/high-entropy alloy hybrid interlayer
Junmiao Shi (East China University of Science and Technology)
Qian Wang, Ninshu Ma (JWRI, Osaka University)
1. Materials and methods
Both FGH98 superalloy and DD5 single crystal are commercial materials with Ni-based solid
solution Ȗ and Ni3Al precipitation Ȗ’) as the main phases. The FGH98 superalloy and DD5 single
crystal were sliced into pieces with dimensions of 10 mm × 20 mm × 3 mm and 5 mm × 5 mm × 5mm, respectively, to be diffusion bonded. The Ni/HEA hybrid interlayer consists of a commercial Ni
foil with a thickness of 2 ȝm and a self-prepared HEA layer of Al0.3CoCrFeNi with a thickness of 50
ȝm. The HEA layer was prepared mainly involving arc melting, annealing, and rolling, as follows.
First, the pure metal powders (i.e., Al, Co, Cr, Fe, and Ni powders) were weighed proportionally andthen arc-melted 5 times under Ar atmosphere protection. Next, the multi-remelted HEA block washomogenized at 1200 ႏfor 2.5 h. Last, the homogenized HEA block was cold-rolled and annealed,followed by a specific procedure to harvest the desired HEA layer.

Figure 1 Schematic diagrams of (a) the specimen assembly for diffusion bonding and (b) the shear
test fixture.
Prior to diffusion bonding, the pieces of FGH98 superalloy and DD5 single crystal, as well as the
HEA layer, were ground, polished, and cleaned ultrasonically. They and the Ni foil were assembled
for diffusion bonding, as shown in Fig. 1(a). In particular, HEA is adjacent to DD5 in the diffusion
system to control interfacial reactions and avoid DD5 degradation. The diffusion temperature varied
from 1075 ႏto 1160 ႏat a constant pressure (2 MPa) and holding time (1 h). The diffusion bonding
was performed in a vacuum furnace with a vacuum level of 3×10í3 Pa to avoid oxidation. The
microstructures, especially the joint bonding interfaces and fracture morphologies, of the FGH98-DD5
joints obtained after diffusion bonding were observed by scanning electron microscopy (SEM).

− 264 −

Elemental proportions and distributions were characterized by energy-dispersive X-ray spectroscopy(EDS) and electron probe X-ray microanalysis (EPMA). Moreover, the phases of composite diffusion
zones at interfaces were manufactured by FIB, and then the Micro area samples were analyzed by
Talos F200X transmission electron microscopy (TEM). The obtained high-angle annular dark field(HAADF) and selected area electron diffraction (SAED) pattern could be used to identify the phases
structures in depth. The hardness distribution of the joint was tested using LECO Micro Vickers
Hardness Tester. The pressure head of 300gf was pressed in the joint with the holding time of 15s. In
this study, the FGH98-DD5 joints were subjected to shear tests, as shown in Fig. 1(b), to evaluate thejoint performance. The fracture force of the joint would be output by the electronic universal testingmachine (F), the joining area (S) could be measured easily. Then the shear strength of the joint could
be calculated by the following equation.
ி

2. Conclusions

(1)

ߪ=ௌ

The robust joining of FGH98 superalloy to DD5 single crystal was successfully attained by the
Ni/HEA hybrid interlayer-modulated interdiffusion behavior. This study elucidates the correlation
between the microstructure and mechanical properties of the FGH98-DD5 joint diffusion bonded
using the Ni/HEA interlayer, which can provide scientific guidelines for the reliable FGH98- DD5diffusion bonding welcomed by extreme service environments. The conclusions are as follows:(1) Elemental interdiffusion triggers the formation of Ȗ’-reinforced FCC matrix composites at the
FGH98-Ni/HEA and DD5-Ni/HEA interfaces, the so-called composite diffusion zone.
Specifically, the carbide-forming elements (mainly the C element) are dissolved in the Ni layer
to effectively avoid the formation of carbides at the interface. The sluggish effect of HEA preventsthe Ȗ’ overgrowth. Both of them favor interface bonding.
(2) More importantly, the critical role of diffusion temperature on microstructure and mechanicalproperties of the joint was elucidated. As the diffusion temperature increases, the elemental
interdiffusion intensifies to promote the formation of Ȗ’; thus, the composite diffusion zones are
thickened, accompanied by a decrease in voids. Nonetheless, too-high diffusion temperature cancoarsen the grains and weaken the dissolution of the Ni layer to the C element and the sluggish
effect of HEA.
(3) Correspondingly, the hardness of Ni/HEA hybrid interlayer increases significantly withincreasing diffusion temperature, which leads to a noticeable improvement in the mechanicalperformance of the FGH98-DD5 joint. It is eventually determined that the optimal processparameters are 1130 ႏfor 1 h with a low pressure of 2 MPa under vacuum. The maximum shear
strength of the joints was 650 MPa.
‫ڠ‬ಋ‫ڂݜ‬෾໼ʁં߻ߑଆԿմੵ෾໼ − 265 −

Residual stresses in wire-arc additively manufactured ultra-high strength steel components
Jiamin Sun, Thomas Nitschke-Pagel, Klaus Dilger(Technische Universität Braunschweig)
Ninshu Ma (JWRI, Osaka University)
Dean Deng (Chongqing University)
Abstract
Wire-arc additive manufacturing (WAAM) has been widely applied to produce innovative andcustomized products. Nevertheless, the generated residual stress might influence the structural integrity
and service life of WAAM components. Therefore, it is critical to understand the generation anddistribution of residual stresses in WAAM components. The present work investigates the generationand distribution mechanism of residual stresses in wire-arc additively manufactured components. The
increasingly used ultra-high strength steel (UHSS) has been chosen for investigation here. A series ofnumerical simulations have been performed to analyze the variation of residual stresses in UHSS WAAM
components in terms of the deposited layer number. Meanwhile, experiments have been performed tomeasure the thermal and mechanical results for validation. Based on the experimental and numericalresults, the generation and mechanism of residual stresses in wire-arc additively manufactured UHSS
components have been clarified in detail.
1. Experimental procedure
The substrate is UHSS S960 and the filler wire is ER120S-G. In the current work, the thermal property
tests were performed to measure the thermal properties of the given S960 steel. Meanwhile, the tensile
tests were carried out to determine its stress-strain curves. Before WAAM process, the substrate waspreheated to about 150 °C. The WAAM process was carried out by using the Cold Metal Transfer (CMT)advanced 4000R welding device with the KUKA KR22 robot as seen in Fig. 1. The WAAM processparameters of all deposited layers are the same. The WAAM process current is 169 A, voltage is 16.2 V,
and travel speed is 4.25 mm/s. The interpass temperature is around 200 °C. In the present study, there
were two WAAM components (Sample A and Sample B) produced. The Sample A and Sample B are
completely the same here, except the deposited layer number. The Sample A has only 1 layer, while theSample B has 30 layers (see Fig. 1). The size of the substrate, and deposited length can be seen in Fig. 2.
It should be noted that no external restraint was applied during the WAAM process.

− 266 −

Fig. 1. Experimental setup.

Fig. 2. Experimental sample geometry.
During the WAAM process, thermocouples were utilized to measure the thermal cycles in the substrate.
The infrared pyrometer was applied to measure the thermal cycles in the deposited wall. After the
WAAM process, the residual stresses along line 1 were measured by the X-ray diffraction (XRD) method.
Meanwhile, the deformation was measured by using the laser scanning machine. Furthermore, the macroand micrographs were measured.
2. Conclusions(1) :LWK WKH LQFUHDVH RI WKH GHSRVLWHG OD\HU QXPEHU WKH FRROLQJ UDWH ǻW8/5 time in the fusion zone
significantly increases first but then nearly keeps as a constant. Nevertheless, the hardness in thedeposited wall does not vary heavily. The generated microstructure in the wall is nearly 100 % bainite.
(2) The transverse residual stress in the deposited wall is ignorable, while the magnitude and distribution
characteristic of longitudinal residual stress are highly related to the deposited layer number.
(3) Solid-state phase transformation might be ignorable in numerical simulation of wire-arc additively
manufactured ultra-high strength structural steel components if the deposited layer number is higher thana certain value.
‫ڠ‬ಋ‫ڂݜ‬෾໼ʁં߻ߑଆԿմੵָ෾໼ − 267 −

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Tailoring precipitation of directed energy deposited Al-Cu alloy via laser shock peening and heat
treatment.
Tianxing Chang (Xi’an Jiaotong University),
Ninshu Ma (JWRI, Osaka University)

AbstractʁWire-arc directed energy deposition (DED) has become a promising method to fabricate
large-sized metallic components. The mechanical properties of the directed energy deposited Al-Cu
alloy usually can be improved by fine precipitates formed during subsequent heat treatment. In thisstudy, a novel hybrid post-treatment method (HPTM) with laser shock peening (LSP) introduced
between heat treatment was proposed. The results indicate that the yield and tensile strength of Al-Cu
alloy treated by the HPTM were 38% and 13%, respectively, higher than those of the T6 counterparts.
Based on the atomic scale characterization of spherical aberration transmission electron microscopy,
the influencing mechanism of LSP on the precipitation process was investigated. The quantificationof various strengthening mechanisms shows that the improvement of precipitation strengthening is themain reason for the excellent strength. This HPTM route provides a promising way for the posttreatment of complex additively manufactured precipitation strengthening alloy components.
1. Materials and methods
AA2319 aluminium alloy wires of 1.2
mm diameter with the same composition as
2219 aluminium alloy were used as
deposited material and a 2219 aluminium
alloy sheet was used as the substrate. The
heat source was provided by a Fronius CMTadvanced 4000R welding power. And thespecific welding process parameters areshown in the Table 2. After the deposition ofeach layer, a dwell time of 2 min were kept
to cool the components below ႏ
Meanwhile, the oxide film on the surface
was removed manually along the depositing
direction with a wire brush. The size of the− 270 −

wall was 260 mm × 150 mm × (5.5–6.0) mm with 70 layers in total.
The wall was divided into five pieces. The first three categories, as built, T6 treated (T6) and a
hybrid post-treated with an LSP treatment introduced between solid solution and aging (HPTM) wereset as the main study groups. The last two categories, direct LSP (DLSP) and LSP+AG served as thereference groups in some experiments. A group of optimal T6 heat treatment processes were selectedto achieve the best mechanical properties of the samples. The sample was first kept at 530 ႏfor 2 h
and then quenched in water, the subsequent aging was kept at 175 ႏfor 6 h, followed by air cooling.
An Nd: YAG pulse laser (Beamtech, Beijing China) was employed in this study for laser shock peening.
A 2 mm thick water layer was used as the confining layer to increase the peak pressure of the laser
shock wave. Black tape was used as the absorbing layer to avoid possible damage or roughening of
the specimen surface. The pulse energy of LSP was 1 J, the spot size was 2 mm and the overlapping
rate was 50%. The laser impinges on the surface of the specimen in a zigzag path.
2. Conclusions
In this work, the formation mechanism of precipitations and the source of excellent tensile
properties in 2319 aluminum alloy manufactured by wire-arc DED with a novel HPTM process wasinvestigated. The following conclusions can be drawn:(1) Wall-shaped wire-arc DED 2319 aluminium alloy component treated with a novel HPTM
process leads to extremely high strength. Its yield strength and ultimate tensile strength reach
322 MPa and 412 MPa, which are 38% and 13% higher than these of their counterparts under the T6
heat treatment, respectively. In return, its elongation is only reduced from 7.2% to 4.7%.
(2) The LSP treatment in the HPTM process not only reduce the number of micropores but also
introduces considerable dislocations, which promotes precipitation process during aging by providing
more potential nucleation sites. However, the observed slight increase in the number of crucial bigger
pores caused by HPTM process will likely have an adverse impact on the component performance.
(3) The precipitation was still dominated by the transition from ș’’ phase to fine ș’ phase during
aging in the innovative HPTM process, while the T6 sample was characterized by the absence of fine
ș’’ phase and coarsening of the ș’ phase. This changed precipitation mechanism in the HPTM sample
enhances the precipitation strengthening effect, which plays an important role in its excellent tensile
strength.

ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁં߻ߑଆԿմੵָ෾໼ − 271 −

Effect of Mg remelting and mechanical hooks of steel on the mechanical and fatigue responses ofresistance element welded AZ31/DP780 joints: Experimental, FEM and thermodynamic calculation
Kai Song (School of Materials Science and Engineering, Tianjin University),
Ninshu Ma (JWRI, Osaka University)

Abstract
A comprehensive investigation was conducted on the stress-strain responses and microstructural
evolutions of 9Cr3Co3WCu martensitic steel at 650 ႏsubjected to low cycle fatigue tests, straincontrolled creep-fatigue tests (SNCFTs), and hybrid stress-strain-controlled creep-fatigue tests(HSSCFTs). Through the employment of advanced characterization techniques, the evolution of
dislocation density exhibited a decreasing rate in all cases, and a fracture morphology characterized
by a large size of creep voids was observed in HSSCFTs. Consequently, a dislocation-based
viscoplastic constitutive model was developed, incorporating a relaxation parameter, a slip
deformation resistance model and a dislocation density evolution model interacting with the grainboundary. The proposed model demonstrated excellent congruences under fatigue, creep, creepfatigue, and multi-step creep-fatigue tests between experimental and simulated results, thereby
confirming its capability to comprehensively capture cyclic deformation under various loading modes.
1. Materials and methods
9Cr3Co3WCu steel was adopted in this study. Low cycle fatigue (PFT), strain-controlled creep-fatigue,
hybrid stress-strain-controlled creep-fatigue tests were conducted. Their loading waves are illustrated
in Fig. (a). In Fig. (b), it is aimed to elucidate the advantages of HSSCFT in characterizing the effectof creep behavior on creep-fatigue interaction. The experimental observations reveal that when thehold stress is 140 MPa in HSSCFT, the rupture lives in HSSCFT and SNCFT exhibit comparable
values. HSSCFTs offer the capability to control the magnitude of creep damage by varying the holdstress level, while maintaining the total strain range and hold time unchanged. Furthermore, despite
exhibiting comparable rupture lives in HSSCFT and SNCFT, distinct fracture mechanisms areobserved. In HSSCFTs, large voids influence the main crack propagation path and coalesce with theprimary crack, while in SNCFTs, the main crack is merely surrounded by creep voids. For themartensitic steel, dislocation annihilation and lath coarsening are the primary degradation mechanismsthat occur under creep and fatigue loadings at elevated temperatures. Therefore, the dislocation
evolutions (GNDs and SSDs) in PFTs, SNCFTs, and HSSCFTs are investigated using interrupted tests,− 272 −

Experiment(a1)

EBSD specimen and 20mm
fracture morphology109mm

and it is concluded that the(a2) PFT

Fracture frontier
6.35mmİııt

TEM specimen(a3) SNCFT

Strain-controlledİtdislocation density evolution is

Force-controlled

independent of the loading modes.

(a4) HSSCFT

İ

ı

ı

İ

ı

ı

t

t

İ

İ

t

t

t

t

(b2) Fracture morphology

Microstructure(b1) Maximum stress

Therefore, in Fig. (c), a dislocation

ı

ı

based

(b3) Dislocation density evolution

Voids

200 ȝP

Load direction

100 ȝP50 ȝP(b) HSSCFT

density is treated as an internal

Linked voids
Voids

200 ȝP
Void-induced crack

Secondary crack

variable,

Main crack

500 ȝP50 ȝP

100 ȝPs*İ e  İinıC : İ eİin1ȖshearMsiȖshear

3
J0
2

Ĳ-s
s*

p

2 in inİ : İ3

C : İ  İ e

s

¦ s

i

2
Ci Ȗshear  J i si Ȗshear  F si
3

Ĳ-s
Ĳ-s

F

(b)

m*1

si

Lath

F0
ª
§
U 0 ·º1  F1 «1  exp ¨ F 2  t ¸ »Ut ¹ ¼©
¬

Mobile dislocationarelationshipboundaries and within grains is

Dislocation atlath boundary

N

i 1

n

(a)

s 0  D Gb U f  U m  U gb

andbetween dislocations at grain

on evolution at grain boundaryİ

constitutive

proposed model, the dislocation

Secondary crack

500 ȝPviscoplastic

model has been developed. In the(a) SNCFT

W1

s0

Forest dislocation

W'·W1

s0

established.

Ultimately,

byincorporating these modifications
into the classical dislocation-based
constitutive framework, a morecomprehensive constitutive model
capable of describing uniaxial
Masingbehavior

has

been

formulated. In Fig. (d), compared with the experimental data, the validation of the proposed model
ZDV FRQ¿UPHG XQGHU YDULRXV ORDGLQJ PRGHV E\ F\FOLF UHVSRQses, hysteresis loops, creep strain
responses, and dislocation density evolution.
2. Conclusions
The creep-fatigue behaviors of 9Cr3Co3WCu steel under different loading modes were investigatedsystematically. Through a comparative analysis, the study exhibited the commonalities and differencesin stress and creep strain evolution under these modes. HSSCFTs had an advantage of evaluating
different failure mechanisms in CFI using different hold stresses. The creep strain evolution in SNCFT
decreased continuously with cycle number, whereas HSSCFT exhibited a decrease followed by anincrease. Based on the microstructural characterization, the evolution of SSD and GND in SNCFT andHSSCFT exhibited a continuous decrease with a decreasing rate.
Based on these phenomena, a dislocation-based viscoplastic constitutive model was developed. The
proposed model integrated a dislocation based relaxation parameter, a dislocation density evolution
model and the modified K-M model to account for the effect of grain boundary strengthening inmartensitic steel. In summary, the proposed model facilitated a comprehensive understanding of thecomplex viscoplastic deformation at high temperatures.
ʤ‫ڠ‬ಋ‫ڂݜ‬෾໼ʁં߻ߑଆԿմੵָ෾໼ʥ

− 273 −

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− 275 −

Effective toughening of dissimilar Ti alloy friction welded joint by combining electropulsing
thermal and athermal effects
Pengkang Zhao (Xi’an University of Technology, Xi’an 710048, P. R. China)
Ninshu Ma2 (Osaka University, Osaka 567-0047, Japan)
Abstract:
A titanium alloy integral blisk (blade-disk), which is crucial for advanced aviation engines, ismanufactured through linear friction welding (LFW). However, its low toughness at the LFW joint
reduces its reliability, which is attributed to the equiaxed grain structure causing crack propagation in
the welded zone (WZ). Electropulsing treatment (EPT) considerably enhances grain boundary
nucleation and migration, accelerating recrystallization and homogenizing dislocation distribution
through the combined effects of Joule heat (thermal) and electron momentum (athermal). The athermal
effect of electron wind force can regulate the morphology of grain growth by controlling the angle
between the direction of electron wind and the facets of the grains. Therefore, EPT could transform
equiaxed grains into needle-like or lamellar structure, forming an interlaced basketweave on the TC17
WZ. The transformation enhances the impact toughness from 9.3 to 33.5 J/cm2, which is equivalent tothaf of TC11 base metal (BM). Moreover, the EPT joint strength surpasses both BMs. This study sheds
light on the microstructural evolution mechanism of titanium alloy joints under EPT conditions,providing novel insights for enhancing titanium alloy toughness.
1. Materials and methods
Figure 1 shows the schematic of the EPT setup and the designated sampling locations. The joint
was fabricated through LFW using TC11 and TC17 alloys. The electropulsing sample, withdimensions of 80×20×3 mm3, was cut from the entire joint and securely clamped between two copper
electrodes, maintaining a gap of approximately 50 mm. The welding interface was strategically
positioned at the center of this configuration. EPT was performed using a THDM-II 5000
electropulsing generator, with specific parameters set at a pressure of 70 V, a frequency of 250 Hz, an
EPT time of 70 s, and an average pulse duration of 73 ȝs. The specimen was heated from room
temperature, reaching a peak temperature of 680°C after 70 s. Subsequently, the electropulse heating
was halted, and the specimen was air-cooled to room temperature. The average electropulsing current
density is 7.3ʹ106 A/m2. The scope of electrical pulse modulation is principally governed by the pulse
voltage. With an increment in pulse voltage, there is an expansion in the modulation range of theelectrical pulses, accompanied by a rise in temperature. The dimensions for impact toughness andminiature tensile specimens are 55×10×2.5 mm³ and 3.2×1.6×0.2 mm³, respectively. Subsequently, anin-depth analysis of microstructure and crystal texture was conducted via scanning electron
microscopy (SEM) and electron backscatter diffraction (EBSD). Furthermore, a specimen with athickness of 100 nm, prepared via focused ion beam (FIB), was utilized for an intricate investigation− 276 −

of the crystal structure via transmission electron microscopy (TEM). These analytical techniques
collectively contribute to a comprehensive understanding of the effects of EPT on the joint,
encompassing mechanical properties, microstructural evolution, and crystallographic characteristics.

Fig. 1 Schematic of the EPT principle and the designated sampling location.
2. Conclusions
In summary, the lamellae become thinner on the TC11 WZ, whereas the equiaxed grainstransform into interlaced basketweave microstructure on the TC17 WZ following EPT, utilizing both
Joule heat (thermal effect) and electron momentum (athermal effect). Consequently, the differences
between both WZs were substantially reduced. The impact toughness of the joint considerably
improved from 9.3 to 33.5 J/cm2. Simultaneously, the joint exhibited strength superior to those of theBMs under various heat treatment conditions. The above results indicate that EPT has a synergistic
effect in enhancing both the strength and toughness of the welding interface. This study provides
valuable insights for investigating the mechanisms of microstructural evolution and their association
with mechanical properties in other metallic materials under EPT conditions.

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