Source: https://patents.google.com/patent/JPH10180853A/en
Timestamp: 2018-12-16 19:11:10
Document Index: 336944307

Matched Legal Cases: ['art 11', 'art 11', 'art 6', 'art 11', 'art 11', 'arts 11']

JPH10180853A - Molding of bottle body - Google Patents
Molding of bottle body
JPH10180853A
JPH10180853A JP34142496A JP34142496A JPH10180853A JP H10180853 A JPH10180853 A JP H10180853A JP 34142496 A JP34142496 A JP 34142496A JP 34142496 A JP34142496 A JP 34142496A JP H10180853 A JPH10180853 A JP H10180853A
JP34142496A
JP3796595B2 (en )
Kazuhito Kuwabara
和仁 桑原
PROBLEM TO BE SOLVED: To easily and certainly form the air introducing part to the gap between outer and inner layers without requiring post-treatment. SOLUTION: This parison is constituted so as to be formed by fitting an outer cylinder 2 made of a synthetic resin having a thread 4 provided in the outer peripheral surface of the mouth part 11 thereof and molded into a closed- end cylindrical shape and an inner cylinder 3 made of a flexible synthetic resin freely relaeasable with respect to the outer cylinder 2 molded into a closed-end cylindrical shape wherein an outer flange 5 is provided in the upper end of the mouth part 11. In the case, the groove 7 being the air introducing part 6 to the gap between the outer and inner layers 12, 13 is preliminarily formed to at least one of the mouth part 11 of the outer cylinder 12 and the mouth part 11a of the inner cylinder 3 and the lower parts of the mouth parts 11, 11a of this parison 1 are subjected to biaxial stretch/blow molding.
【産業上の利用分野】本発明は、定形の外殻を形成する外層内に、変形自在な内袋を形成する内層を剥離自在に積層形成し、外観形状を変化させることなく、かつ内容液収納部に外気を侵入させることなく、内容液の注出使用を可能とした合成樹脂製壜体の成形方法に関するものである。 BACKGROUND OF THE INVENTION This invention is in the outer layer that forms an outer shell of the standard sizes, the inner layer forming a deformable inner bag and releasably laminated without changing the appearance shape, and the liquid content without entering the outside air in the housing portion, to a method of forming a liquid content of pouring it allows use with synthetic resin bottle body.
【従来の技術】定形の外殻を形成する外層内に、変形自在な内袋を形成する内層を剥離自在に積層して構成した合成樹脂製ブロー成形壜体においては、内層内に収納された内容液が注出使用されて、内層が形成する内袋が容積減少変形する際に、外層と内層との間に外気を侵入させることにより、外層に対する内層の剥離を円滑に達成できるようにして、内容液の注出使用による内層の容積減少変形が無理なく良好に行われるようにしている。 BACKGROUND ART outer layer to form a fixed form of the shell, in the inner layer releasably laminated constructed by synthetic resin blow molded bottle body forming a deformable inner bag, housed in the inner layer content liquid is to use pouring, when the inner bag inner layer is formed to volume reduction deformed, by entering the outside air between the outer and inner layers, so as to smoothly achieve the separation of the inner layer against the outer layer , so that dispensing use the inner layer of the volume decrease deformation due to the contents of liquid is carried out reasonably well.
【０００３】この外層と内層との間に外気を侵入させるための手段として、本出願人により特願平６−１４３３ As a means for entering the outside air between the outer and inner layers, by the present applicant Hei 6-1433
２６号の技術が提案されている。 26 issue of techniques have been proposed.
【０００４】上記した従来技術は、比較的融点の低い合成樹脂であるポリエチレン製等の外層と、それより融点の高い可撓性合成樹脂であるナイロン製等の内層とを共押出し成形手段により積層円筒状に押出し成形したパリソンから壜体をブロー成形した後、外層材料の融点以上で内層材料の融点未満の温度に加熱した穿孔治具を、壜体の口部を含めた胴部の外層部分に押し当て、該外層に内層との間への空気取り入れ孔を溶融形成する方法である。 [0004] above-mentioned prior art, laminated by a relatively outer layer of polyethylene such as a low melting point synthetic resin, co-extrusion means an inner layer of nylon or the like is even higher melting flexible synthetic resin after blow molding the bottle body from parison was extruded into a cylindrical shape, the outer portion of the drill jig heated to a temperature below the melting point of the inner layer material above the melting point of the outer layer material, the body portion including a mouth of the bottle body pressed to a air intake method the pores to melt formed into between the inner to the outer layer.
【発明が解決しようとする課題】しかしながら、上記従来技術は、ブロー成形により壜体を成形した後に、専用の穿孔治具を用い、かつ温度および押圧力を所定の設定条件に制御しながら、外層に空気取り入れ孔を溶融形成するものであるため、後加工としての穿孔工程が必要となり、工程数が多くなると共に、その穿孔作業も技術的に難しいと云う問題があった。 [SUMMARY OF THE INVENTION However, the prior art described above, after forming the bottle body by blow molding, using a special drill jig, and while controlling the temperature and pressure to a predetermined setting condition, the outer layer since the air intake hole is to melt forming, piercing step as post-processing is required, the number of steps increases, also there is a problem that a technically difficult the drilling work.
【０００６】そこで、本発明は、上記した従来技術における問題点を解消すべく創案されたもので、外層と内層との間への空気導入部を、後加工の必要無く、容易にかつ確実に形成することを目的とする。 [0006] The present invention has been made to solve the problems in the conventional techniques described above, the air introduction portion into between the outer layer and the inner layer, post processing required without, easily and reliably forming an object of the present invention is to.
【課題を解決するための手段】上記目的を達成する本発明の手段は、ブロー成形により、定形の外殻を形成する合成樹脂製の外層と、この外層に剥離自在に積層され、 Means of the present invention to achieve the above object, according to an aspect of the blow molding, the synthetic resin of the outer layer that forms an outer shell of the standard sizes, is releasably laminated to the outer layer,
内袋を形成する可撓性合成樹脂製の内層とから構成される壜体の成形方法であること、射出成形により、口部外周面に螺条を設けた有底筒状に成形された合成樹脂製の外筒と、射出成形により、口部上端に外フランジを周設した有底筒状に成形された、前記外筒に対して剥離自在な可撓性合成樹脂製の内筒とを嵌合させて成るパリソンの、前記外筒の口部と内筒の口部の少くとも一方に、前記外層と内層との間への空気導入部を射出成形時に予め形成すること、このパリソンの口部より下部分を２軸延伸ブロー成形すること、にある。 It from a flexible synthetic resin of the inner layer forming the inner bag is a method of molding a configured bottle body, by injection molding, it is molded into a bottomed cylindrical shape having a screw thread on the mouth portion outer peripheral surfaces synthesis an outer cylinder made of resin, by injection molding, the molded outer flange in a bottomed cylinder which is provided around the mouth portion upper end, and an inner cylinder made of releasably flexible synthetic resin relative to the outer tube parison comprising fitted, at least on one of the mouth portion of the mouth portion and the inner cylinder of the outer cylinder, to advance an air introduction portion into between the outer layer and the inner layer during injection molding of the parison It is biaxially stretch blow molding the lower portion from the mouth, in.
【０００８】空気導入部を、内筒の外フランジ下面から口部外周面に亘って設けた少くとも１本の溝とするか、 [0008] or an air inlet portion, and the outer flange lower surface over the mouth portion outer peripheral surface at least one groove provided in the inner cylinder,
または、外筒の上端面から口部の内周面に亘って設けた少くとも１本の溝とするか、あるいは、外筒の口部の下部に設けた少くとも１個の透孔とするのが良い。 Or, at least it provided to extend from the upper end surface of the outer tube to the inner peripheral surface of the mouth portion or the one groove, or at least provided at the bottom of the mouth portion of the outer tube and one hole good it is.
【作用】壜体の成形においては、パリソンの口部より下部分を２軸延伸ブロー成形するので、口部はパリソンの原形を保持し、変形しないため、空気導入部は、成形された壜体の外層と内層との間への空気の侵入を円滑に達成することができる。 [Action] In the molding of the bottle body, because the biaxial stretch blow molding the lower portion from the mouth portion of the parison, mouth holds the original shape of the parison, because it does not deform, the air introduction section, molded bottle body the air entering the between the outer layer and the inner layer can be smoothly accomplished.
【実施例】図１、図２は本発明の第一実施例を示したものである。 DETAILED DESCRIPTION FIG. 1, FIG. 2 shows a first embodiment of the present invention. パリソン１は、図１の左半分に示すように、 Parison 1, as shown in the left half of FIG. 1,
それぞれ射出成形により有底円筒状に成形された外筒２ It is formed into a bottomed cylindrical shape by the respective injection molding an outer cylinder 2
と内筒３とを嵌合させたものである。 Is obtained by the inner cylinder 3 is fitted with.
【００１１】外筒２は、ポリエチレン等から成り、口部１１である上端外周面には、ポンプ付きキャップ等が螺合組付けされる螺条４が刻設されている。 [0011] the outer tube 2 is made of polyethylene or the like, to the upper end outer peripheral surface is a mouth 11, screw threads 4 are engraved pump cap or the like is assembled screwed.
【００１２】内筒３は、可撓性合成樹脂であるナイロン等から成り、その上端には、外筒２の上端面上に重なる外フランジ５が周設されており、この外フランジ５の下面から口部１１ａの外周面に亘って、空気導入部６である溝７が成形されている（図２参照）。 [0012] inner tube 3 is made of nylon or the like is flexible synthetic resin, on its upper end, the outer flange 5 overlying the upper surface of the outer cylinder 2 are circumferentially provided, the lower surface of the outer flange 5 over the outer peripheral surface of the dry portion 11a, the groove 7 is an air inlet portion 6 are formed (see FIG. 2).
【００１３】そして、上記パリソン１をブロー成形金型にセットし、口部１１、１１ａより下部分を２軸延伸ブロー成形することにより、図１の右半分に示すように、 [0013] Then, set the parison 1 to a blow mold, by biaxial stretch blow molding the lower portion from the mouth 11, 11a, as shown in the right half of FIG. 1,
定形の外殻を形成する合成樹脂製の外層１２と、該外層１２に剥離自在に積層され、内袋を形成する可撓性合成樹脂製の内層１３とから構成される壜体１０が成形される。 A synthetic resin of the outer layer 12 to form a fixed form of the shell is releasably laminated to the outer layer 12, the bottle 10 is molded composed of a flexible synthetic resin of the inner layer 13 for forming the inner bag that.
【００１４】この成形において、口部１１、１１ａはブロー成形されない部分であって、パリソン１０の原形を保持しているので、溝７は、壜体１０の外層１２と内層１３との間への空気導入路として有効に作用する。 [0014] In this molding, a part of the mouth portion 11,11a not blown, so retain the original form of the parison 10, the groove 7, to between the outer layer 12 and inner layer 13 of the bottle 10 effectively acts as an air introducing passage.
【００１５】図３に示した第二実施例においては、空気導入部６を、外筒２の上端面から口部１１の内周面に亘って設けた溝８で構成してある。 [0015] In a second embodiment shown in FIG. 3, the air inlet section 6, it is constituted by a groove 8 provided to extend from the upper end surface of the outer tube 2 to the inner circumferential surface of the mouth portion 11.
【００１６】図４に示した第三実施例においては、空気導入部６を、外筒２の口部１１の下部に設けた透孔９としてある。 [0016] In a third embodiment shown in FIG. 4 is an air inlet section 6, as through holes 9 provided in the lower portion of the outer cylinder 2 of the mouth portion 11.
【発明の効果】本発明は、上記した構成となっているので、以下に示す効果を奏する。 According to the present invention, since a configuration as described above, it achieves the following effects. 壜体の成形時に２軸延伸ブロー成形されない部分であるパリソンの口部に外層と内層との間への空気導入部を、パリソンの射出成形時に予め形成するので、該空気導入部を後加工の必要無く、 The air introduction portion into between the biaxial stretch blow molded portion not in a mouth portion outer and inner layers of the parison during the molding of the bottle body, because the previously formed during injection molding of the parison, the post-processing the air introducing portion without the need,
容易にかつ確実に形成することができる。 It can be easily and reliably formed.
【図１】本発明の第一実施例を示す、左半分はパリソンの、右半分は成形後の壜体のそれぞれ縦断面図。 1 shows a first embodiment of the present invention, the parison is left half, the right half, respectively vertical sectional view of the bottle after molding.
【図２】第一実施例を示す、内筒の要部斜視図。 2 shows a first embodiment, a main part perspective view of the inner cylinder.
【図３】第二実施例を示す、外筒の要部斜視図。 3 shows a second embodiment, partial perspective view of the outer cylinder.
【図４】第三実施例を示す、外筒の要部斜視図。 4 shows a third embodiment, a main part perspective view of the outer cylinder.
１ ； パリソン ２ ； 外筒 ３ ； 内筒 ４ ； 螺条 ５ ； 外フランジ ６ ； 空気導入部 ７ ； 溝 ８ ； 溝 ９ ； 透孔 １０； 壜体 １１、１１ａ； 口部 １２； 外層 １３； 内層 1; parison 2; the outer cylinder 3; inner cylinder 4; screw bar 5; outer flange 6; air introducing section 7; groove 8; groove 9; hole 10; the bottle 11, 11a; mouth 12; outer layer 13; inner layer
【請求項１】 ブロー成形により、定形の外殻を形成する合成樹脂製の外層(12)と、該外層(12)に剥離自在に積層され、内袋を形成する可撓性合成樹脂製の内層(13)とから構成される壜体(10)の成形方法であって、射出成形により、口部(11)外周面に螺条(4) を設けた有底筒状に成形された合成樹脂製の外筒(2) と、射出成形により、 By 1. A blow molding, the synthetic resin forming the outer shell of the fixed form the outer layer (12) is releasably laminated to the outer layer (12), a flexible synthetic resin forming the inner bag inner layer (13) because constituted the bottle (10) a method of forming, by injection molding, the mouth portion (11) outer peripheral surface formed into screw threads (4) a bottomed cylindrical having a synthetic resin of the outer cylinder (2), by injection molding,
口部(11a) 上端に外フランジ(5) を設けた有底筒状に成形された、前記外筒(2) に対して剥離自在な可撓性合成樹脂製の内筒(3) とを嵌合させて成るパリソン(1) の、 Molded to the mouth portion (11a) a bottomed cylindrical shape provided with an outer flange (5) at the upper end, and a releasably flexible synthetic resin of the inner cylinder (3) relative to the outer cylinder (2) parison made is fitted in (1),
前記外筒(2) の口部(11)と内筒(3) の口部(11a) の少くとも一方に、前記外層(12)と内層(13)との間への空気導入部(6) を射出成形時に予め形成し、該パリソン(1) の口部(11)、(11a) より下部分を２軸延伸ブロー成形する壜体の成形方法。 Air introduction portion into between the mouth portion of the mouth portion (11) and the inner cylinder (3) at least on one (11a), wherein an outer layer (12) and an inner layer (13) of the outer cylinder (2) (6 ) formed in advance at the time of injection molding, the mouth portion of the parison (1) (11), the molding method of the bottle body to biaxial stretch blow molding the lower portion from (11a).
【請求項２】 空気導入部(6) を、内筒(3) の外フランジ(5) 下面から口部(11a) 外周面に亘って設けた少くとも１本の溝(7) とした請求項１記載の壜体の成形方法。 Wherein the air introducing portion (6) and the outer flange of the inner cylinder (3) (5) mouth from the lower surface (11a) at least provided over the outer peripheral surface 1 grooves (7) according method of molding the bottle of claim 1, wherein.
【請求項３】 空気導入部(6) を、外筒(2) の上端面から口部(11)の内周面に亘って設けた少くとも１本の溝 Wherein the air introducing portion (6), at least one groove is provided over the inner peripheral surface of the mouth portion (11) from the upper end surface of the outer cylinder (2)
(8) とした請求項１記載の壜体の成形方法。 (8) and claims 1 forming method of the bottle body according.
【請求項４】 空気導入部(6) を、外筒(2) の口部(11) Wherein the mouth of the air inlet portion (6), the outer tube (2) (11)
の下部に設けた少くとも１個の透孔(9) とした請求項１ Claim 1 was at least provided in the lower one through hole (9) of
記載の壜体の成形方法。 Method of molding the bottle according.
JP34142496A 1996-12-20 1996-12-20 Method of molding a bottle body Expired - Lifetime JP3796595B2 (en)
JP34142496A JP3796595B2 (en) 1996-12-20 1996-12-20 Method of molding a bottle body
JPH10180853A true true JPH10180853A (en) 1998-07-07
JP3796595B2 JP3796595B2 (en) 2006-07-12
ID=18345973
JP34142496A Expired - Lifetime JP3796595B2 (en) 1996-12-20 1996-12-20 Method of molding a bottle body
JP (1) JP3796595B2 (en)
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