Patent AU-2016392763-B2 (AU)
Title: Spool valve, operation device, and work vehicle
Inventor: ISHIKAWA SATOSHI
IPC: F16K31/12
Filed: 2016-05-31
Granted: 2018-12-13
Abstract: (2) li5 4J ' ai T R'F *A l k M RE fC REd-1 (19) i [ - J r tifl! phIO 4 M llllllllPAllll~ll~llliililli 99 A I$ R.(1 0) l W '! >f A lF (43) M W!2 R1 H 2017*12) 7 H (07.12.2017) WO 2017/208374 A1 (51) $( 2 NAGURA, Shinobu); T3238558 f*t /J\ F16K11/07 (2006.01) F1 6K 3/314 (2006.01) Lt4grifrm 4 0 0 -t 'ti /JI \f Fh /J\ F16K 3/24 (2006.01) LI_ Tie h Tochigi (JP). ±l N ' IEI(SHIOYASU, (21) Rq5 : PCT/JP2016/066080 Tomonobu); T3238558 ft*T/hLJ\ Lt$&ifrl 4 0 0 ft_4±A~t/J*W'F4hf /J\WLLT±th Tochigi (22) R dI3 : 201645} 31E (31.05.2016) (JP). iAS V![(ENDOH,Hirokazu); T3238558 (25) tJ0) : W TTA MJ L4M *hi M 4 0 0 tRt4t'Js*! (-Fh /J\LL WTIt Tochigi (JP). m iIE(26) Q''0 '' (TAJIMA, Masayuki); T3238558ft*t/J\WLLI (71) tJf AX: 4 t 4* /J\ * W 4F Phf (KOMATSU *JirM 4 0 0 t /Jr\* Ft'J /J LLTit LTD.) [JP/JP]; T 1078414 M ' 3 S I_ $ Tochigi (JP). Q-,J H$(HOSAKA, Masayuki); 2 - 3 - 6 Tokyo (JP). T 3238558 ft* /1J\ L T$ i M 4 00 4 (72) RB3t: E || f5 5 (ISHIKAWA, Satoshi); R4±/Jt*J4fFR /J\LWTitAN Tochigi (JP). T3238558 CEt J\LLI4* rm 4 0 0 t4 (74) (UIA: $4 S M t A 4 - I 4 S 4'/J\ f4vt4f /J\ LLTrtAl Tochigi (JP). P Pit (SAKAI INTERNATIONAL PATENT (54) Title: SPOOL VALVE, OPERATING DEVICE, AND WORKING VEHICLE -11 -- A 5 - LB AA A EB 41A 2 4 411 50 43 D 42 cc A 24 T 32 3k 3 30 2'1 50 43B 22 L ~ LPy 44 31 LT 10) ligg ||$ ['i]EE AA Outside BB Radial direction CC Inside DD The other side EE Axial direction FF One side (57) Abstract: A spool valve (1) is provided with a valve body (2) which has a spool hole (3), and also with a spool (4) which is disposed within the spool hole (3) and which is axially movable. The spool (4) has a first large-diameter section N (21) and a small-diameter section (31) which is provided on one axial side of the first large-diameter section (21). The first large-diameter section (21) has: a first outer surface (41) slidable on the inner surface of the spool hole (3); an end surface (44) connected to the end section (41A) on one axial side of the first outer surface (41), and to the end section (43B) on W O 2 0 17/2 0 8 3 7 4 A l ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| OFFICE); T1000013 ZSL+1T- E h R1 3 T R 8 * 1 JIE 6 O PE L T-f ' Tokyo (JP). (8 1) jug z (M ME 5T, 6ti pC 6) , I TA 6O Mg? N EftTA ): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. EtfTA ): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), . -5 $- 7 (AM, AZ, BY, KG, KZ, RU, TJ, TM), 9 - 'Y /A (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). - \ ]||$| (K$ t21M(3)) the other axial side of the outer surface (43) of the small-diameter section (31); and a cutout section (50) provided in the end surface (44). A bottom surface (51) of the cutout section (50) is sloped toward said one axial side so as to approach the center axis (AX) of the spool (4). (57) 9 7 7-)L4(1)( t, 7 7-)LTL(3) t 1- 41 *t(2) L, 7 -)TL(3) CgIn!! tl$M|[J E4 ft PJW Ab 7-) (4)t, &{iZZo 7L-)(4)( t, M 1 t i. (21) L, 1 li.$A(21)t$|J-{T1] 'Jk /Jfn$(31) & O o 1 l nti$(21)(, T( 7 ) ( I9J M9 f 1 Pj M 1 'A M (41) L, M 1 -f(41)6 $M |NJ - {fIJ 6 V-6 (41A)R 9 / 5(31)OXf(4 3)6 $M |NJ It hfIJ 6 V6k5(43B) O th fa tjN 3 h NV-44) l ,ANi(44) (E R Ct6flkctJ M (50) h 7botJM (50)O d d