JPH0826241A - Bottle and its molding - Google Patents
Bottle and its moldingInfo
- Publication number
- JPH0826241A JPH0826241A JP16133194A JP16133194A JPH0826241A JP H0826241 A JPH0826241 A JP H0826241A JP 16133194 A JP16133194 A JP 16133194A JP 16133194 A JP16133194 A JP 16133194A JP H0826241 A JPH0826241 A JP H0826241A
- Authority
- JP
- Japan
- Prior art keywords
- bottle
- outer layer
- layer
- inner layer
- parison
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
- B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
Abstract
Description
【０００１】[0001]
【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、かつ内溶
液収納部に外気を侵入させることなく、内溶液の注出使
用を可能とした合成樹脂製ブロー成形壜体と、この壜体
の成形方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises an inner layer forming a deformable inner bag and a releasable laminated layer formed on the outer layer forming an outer shell of a fixed shape, without changing the outer shape of the inner solution. The present invention relates to a synthetic resin blow-molded bottle body capable of pouring out and using an internal solution without allowing outside air to enter the storage section, and a method for forming the bottle body.
【０００２】[0002]
【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の代表的な従来技術として
は、特開平５−３１０２６５号公報に開示された技術が
ある。2. Description of the Related Art As a typical prior art of a blow molding bottle made of synthetic resin, an inner layer forming a deformable inner bag is releasably laminated inside an outer layer forming a regular outer shell. There is a technique disclosed in Japanese Patent Laid-Open No. 5-310265.
【０００３】この従来技術は、壜体をブロー成形する際
に形成される金型喰切りにより達成さるバリ出し成形に
より成形される底部パーティングライン部分が、内層同
士は接着するが、外層同士は接着し難いことを利用し
て、この底部パーティングライン部分に外力を作用させ
て、外層同士を離反させることによりスリットを開口形
成し、内層内に収納された内溶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、このスリッ
トを通して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達成できるようにし
て、内溶液の注出使用による内層の容積減少変形が行わ
れるようにしている。According to this conventional technique, the bottom parting line portion formed by the flash molding, which is achieved by die cutting formed when the bottle is blow-molded, adheres the inner layers to each other but the outer layers to each other. Utilizing the fact that it is difficult to bond, an external force is applied to this bottom parting line part to form a slit by separating the outer layers from each other, and the inner solution contained in the inner layer is poured out and used. When the inner bag formed by the inner layer undergoes volume reduction deformation, by allowing outside air to enter between the outer layer and the inner layer through this slit, peeling of the inner layer from the outer layer can be achieved, so that the inner solution is poured out. The volume reduction deformation of the inner layer is performed.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来技術にあっては、壜体の座として機能する底部にパー
ティングラインに沿って空気侵入口としてのスリットを
開口するので、壜体の底部の機械的強度が、このスリッ
トの開口により低下し、内容液注出のために壜体に組付
けられた注出ポンプの押圧操作時に、壜体が歪んで注出
ポンプの押圧操作がし難くなると云う問題があった。However, in the above-mentioned prior art, since a slit serving as an air inlet is opened along the parting line in the bottom portion that functions as a seat for the bottle body, the bottom portion of the bottle body is closed. The mechanical strength is reduced by the opening of this slit, and when pressing the pouring pump assembled to the bottle for pouring the content liquid, the bottle is distorted and it becomes difficult to press the pouring pump. There was a problem to say.
【０００５】また、バリ出し成形された底部のパーティ
ングラインにおける外層同士は、その接着程度が弱いと
は言え、或る程度の強度で接着しているものであるか
ら、この底部パーティングラインにおける外層同士の接
着を引き剥がすにはかなりの力を必要とし、このため商
品としての壜体購入後におけるスリット形成に、多大な
労力と手間とを要すると云う問題があった。Further, although the outer layers on the bottom parting line formed by flash molding are bonded to each other with a certain level of strength, the outer layers are bonded to each other with a certain level of strength. There is a problem that a considerable amount of force is required to peel off the adhesion between the outer layers, so that it takes a lot of labor and time to form the slit after purchasing the bottle as a product.
【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、予め壜体胴
部に、外層と内層との間への空気の侵入口を簡単に形成
することのできる部分を形成しておくことを技術的課題
とし、もって壜体胴部に空気侵入口を簡単に形成するこ
とができるようにすると共に、空気侵入口の形成による
壜体底部の座機能の低下のない壜体を提供することを目
的とする。Therefore, the present invention was devised in order to solve the above-mentioned problems in the prior art, in which an air entry port between the outer layer and the inner layer is easily formed in the bottle body in advance. It is a technical issue to form a part that can be closed, so that the air inlet can be easily formed in the bottle body, and the seat function of the bottom of the bottle is formed by forming the air inlet. The purpose is to provide a bottle body with no deterioration.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決する本発
明の構造手段は、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、内袋を形成する可撓性合成樹脂製の内層と、から構
成されること、胴部の全高さ範囲にわたって、外層の一
部に、内層の一部を縦細帯状に露出させる欠部を開設し
て設けたこと、にある。A structural means of the present invention for solving the above-mentioned problems is to provide an outer layer made of synthetic resin which forms a fixed outer shell by blow molding, and an outer layer which is releasably laminated on the outer layer and which is an inner bag. A flexible synthetic resin inner layer that forms a part of the outer layer, and a notch that exposes a part of the inner layer in the form of a vertical strip over the entire height range of the body. It is in the place where it is provided.
【０００８】外層と内層とを、欠部以外の部分で全高さ
範囲にわたって縦帯状の接着帯で接着するのが有効であ
る。It is effective that the outer layer and the inner layer are bonded to each other by a vertical band-shaped adhesive band over the entire height range except the cutout.
【０００９】欠部を、胴部の中心に関して対称に二つ設
けるのが望ましく、この場合、接着帯を、二つの欠部の
中間となる二箇所に設けるのが良い。It is desirable to provide two notches symmetrically with respect to the center of the body. In this case, it is preferable to provide the adhesive band at two places which are intermediate between the two notches.
【００１０】胴部に、シュリンクラベルを巻回固定する
のが有効である。It is effective to wind and fix the shrink label on the body.
【００１１】また、上記課題を解決する本発明の方法手
段は、可撓性合成樹脂製の内筒の外側に、この内筒の一
部を露出させる縦細帯状の切欠き部を有し、内筒に対し
て剥離自在な合成樹脂製の外筒を接合したパリソンを共
押出し成形により成形すること、このパリソンを、切欠
き部を喰い切る方向から口部と底部とをバリ出し成形し
て壜体にブロー成形すること、にある。Further, the method means of the present invention for solving the above-mentioned problems has a vertical strip-shaped notch portion, which exposes a part of the inner cylinder made of a flexible synthetic resin, on the outside of By molding a parison in which an outer cylinder made of synthetic resin that can be separated from the inner cylinder is joined by coextrusion molding, this parison is formed by burring the mouth and bottom from the direction of cutting through the notch. It is in blow molding into a bottle.
【００１２】接着帯を、内筒および外筒と一緒に共押出
ししてパリソンを成形するのが有利である。Advantageously, the adhesive band is coextruded with the inner and outer cylinders to form a parison.
【００１３】[0013]
【作用】壜体胴部には、その全高さ範囲にわたって、外
層の一部に縦細帯状の欠部を開口形成したので、この欠
部を介して内層の一部が外層外に露出することになり、
このため欠部の両側端縁部分である侵入部は、露出した
内層部分が外圧の作用により変形し易い状態にあること
から、外層と内層とが剥離し易いと共に、この剥離によ
り外層と内層との間に外気を円滑に侵入させる侵入口を
形成する。[Function] Since a vertical strip-shaped cutout is formed in a part of the outer layer over the entire height of the bottle body, a part of the inner layer is exposed to the outside of the outer layer through this cutout. become,
For this reason, in the invading part, which is the end edge portion on both sides of the cutout part, the exposed inner layer portion is in a state of being easily deformed by the action of the external pressure, so that the outer layer and the inner layer are easily peeled off, and this peeling causes the outer layer and the inner layer An entry port is formed between the two to allow the outside air to enter smoothly.
【００１４】それゆえ、壜体に取付けた注出ポンプの押
圧操作により、壜体内から内容液を注出すると、この内
容液の注出により壜体内に発生した減圧により、外層の
欠部に露出した内層の一部が容易に陥没状に変形する。Therefore, when the content liquid is poured out from the bottle body by the pressing operation of the pouring pump attached to the bottle body, the decompression generated in the bottle body due to the pouring of the content liquid exposes the outer layer to the notch. A part of the inner layer is easily deformed into a depression.
【００１５】欠部に露出した内層の一部の陥没状の変形
により、侵入部で外層と内層との剥離が発生して、この
侵入部に空気の外層と内層との間への侵入口が形成され
る。Due to the depression-like deformation of a part of the inner layer exposed in the notch, separation occurs between the outer layer and the inner layer at the intruding portion, and an air inlet between the outer layer and the inner layer is formed at the intruding portion. It is formed.
【００１６】侵入部に空気の侵入口が開口形成される
と、空気の外層と内層との間への侵入が容易となるの
で、外層に対する内層の剥離も容易となり、壜体内に発
生した減圧による内層の容積縮小変形が円滑に達成さ
れ、壜体内の減圧を速やかに消滅させる。When the air entry port is formed in the entry part, the air can easily enter between the outer layer and the inner layer, so that the inner layer can be easily peeled from the outer layer and the decompression generated in the bottle body The volume reduction deformation of the inner layer is smoothly achieved, and the decompression inside the bottle is quickly eliminated.
【００１７】この内層の容積縮小変形は、内層が外層か
ら剥離して達成されるので、外層は変形することがな
く、もって壜体の外観には変化が生じない。The volume reduction deformation of the inner layer is achieved by peeling the inner layer from the outer layer, so that the outer layer is not deformed and thus the appearance of the bottle does not change.
【００１８】侵入部における侵入口の形成、すなわちて
外層に対する内層の剥離による内層の容積縮小変形は、
欠部が胴部の全高さ範囲にわたって形成されているの
で、胴部のどの高さ位置からでも生じることが可能なの
であるが、内容液の重量の作用の影響により、この内容
液の重量の作用の最も小さい上端部から始めると云う、
一定した変形形態となる。The formation of the entry port at the entry part, that is, the volume reduction deformation of the inner layer due to the peeling of the inner layer from the outer layer,
Since the notch is formed over the entire height range of the body, it can occur from any height position of the body, but due to the effect of the weight of the content liquid, the effect of the weight of the content liquid is caused. Starting from the smallest upper end of
It becomes a constant deformation form.
【００１９】壜体の全高さ範囲にわたって、欠部を避け
た部分に、外層と内層とを接着固定する縦細帯状の接着
層を設けることはにり、この接着層が位置する部分で
は、外層に対する内層が剥離することができず、このた
め外層内における内層の剥離しての容積縮小変形は、こ
の接着層に接着した部分を不動箇所として行われること
になり、これにより内層の容積縮小変形は、高さ方向の
縮小を生じることなく、単純で一定した縮径変形に規制
されることになる。A vertical strip-shaped adhesive layer for adhesively fixing the outer layer and the inner layer to each other is provided in the portion avoiding the cutout over the entire height range of the bottle, and in the portion where this adhesive layer is located, the outer layer is located. Since the inner layer cannot be peeled off, the volume reduction deformation of the inner layer due to the peeling of the inner layer in the outer layer is performed with the portion bonded to this adhesive layer as a fixed point, which causes the volume reduction deformation of the inner layer. Is restricted to a simple and constant diameter reduction deformation without causing reduction in the height direction.
【００２０】壜体にブロー成形されるパリソンを、内層
となる筒形状の内筒の外側に、外層となる外筒を、内筒
の一部を露出させる縦細帯状の切欠き部を形成した構成
で接合させて共押出しにより成形した構造となっている
ので、このパリソンからブロー成形される壜体の外層に
は、内層の一部を露出させる欠部が、壜体の高さ方向に
沿って切欠き部により成形されることになる。The parison blow-molded into a bottle is formed on the outer side of the cylindrical inner cylinder which is the inner layer, and the outer cylinder which is the outer layer, and a vertical strip-shaped notch for exposing a part of the inner cylinder. Since the structure is bonded and co-extruded, the outer part of the bottle that is blow molded from this parison has a cutout that exposes part of the inner layer along the height direction of the bottle. Will be molded by the notch.
【００２１】切欠き部を設けた外筒を有するパリソンを
壜体にブロー成形するに際して、切欠き部を喰い切る方
向、すなわち切欠き部をパーティングライン上に位置さ
せる方向からブロー割り金型を型締めして、底部は当然
として、口部もバリ出し成形するので、ブロー成形され
た壜体の底部および口部には、切欠き部による欠部が成
形されることがなく、底部および口部のパーティングラ
イン部分における外層部分は外観上、一体的に連結した
状態となり、欠部は壜体の胴部にだけに形成されること
になる。When blow molding a parison having an outer cylinder having a cutout portion into a bottle, a blow split mold is formed from the direction in which the cutout portion is cut off, that is, the cutout portion is located on the parting line. Since the mold is clamped and the mouth is naturally burr-molded, the bottom and mouth of the blow-molded bottle do not have any notches formed by the notches, and the bottom and mouth are not formed. The outer layer portion of the parting line portion of the portion is in a state of being integrally connected in appearance, and the cutout portion is formed only in the body portion of the bottle.
【００２２】すなわち、切欠き部を有する外筒を内筒と
共押出して成形したパリソンの径寸法を、口部でのバリ
出し成形か可能な値に設定し、パリソンを、ブロー割り
金型の型締め方向に対して切欠き部がパーティングライ
ン上に位置するように姿勢を設定することにより、通常
の単純なブロー成形操作により、胴部の全高さ範囲にわ
たって欠部を有する壜体を成形することができるのであ
る。That is, the diameter of the parison formed by co-extruding the outer cylinder having the cutout portion with the inner cylinder is set to a value that allows burr molding at the mouth portion, and the parison is set in the blow split mold. By setting the posture so that the cutout is located on the parting line with respect to the mold clamping direction, a bottle with a cutout is formed over the entire height range of the body by a normal simple blow molding operation. You can do it.
【００２３】[0023]
【実施例】以下、本発明の実施例を、図面を参照しなが
ら説明する。図１ないし図３は、本発明による壜体１の
一実施例を示すもので、この壜体１は、高密度ポリエチ
レン樹脂で成形され、壜体１の外殻体として充分な機械
的強度を発揮する外層５と、高密度ポリエチレン樹脂と
の相溶性がないナイロン樹脂で成形され、充分な可撓性
を発揮できる肉厚に成形された内層６と、高密度ポリエ
チレン樹脂およびナイロン樹脂に対して充分な接着性を
発揮する接着性樹脂で成形され、壜体１の全高さ範囲に
わたって設けられた接着帯９とから構成されている。Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of a bottle body 1 according to the present invention. The bottle body 1 is formed of a high-density polyethylene resin and has sufficient mechanical strength as an outer shell body of the bottle body 1. For the outer layer 5 to be exerted, the inner layer 6 which is molded from a nylon resin which is not compatible with the high density polyethylene resin and which is sufficiently thick to exhibit sufficient flexibility, and to the high density polyethylene resin and the nylon resin. The adhesive band 9 is formed of an adhesive resin exhibiting sufficient adhesiveness, and is composed of an adhesive band 9 provided over the entire height range of the bottle body 1.
【００２４】また、この壜体１は、外周面に螺条を刻設
し、壜体１に対する注出ポンプ（図示省略）の組付き部
分を形成する口部３と、この口部３を上端に起立連設
し、下端に底部４を連設した有底円筒形状の胴部２とか
ら構成され、胴部２を構成する外層５部分には、この胴
部２の全高さ範囲にわたって縦細帯状の欠部７が、胴部
２の中心軸に関して対称位置に一対設けられているの
で、この欠部７に対応する内層６部分が、胴部２の全高
さ範囲にわたって縦細帯状に露出することになり、この
欠部７の形成により、欠部７の両側端縁部の外層５と内
層６との接触部分に侵入部８が形成されることになる。Further, the bottle body 1 has a threaded portion formed on the outer peripheral surface thereof to form a portion for assembling a discharge pump (not shown) with respect to the bottle body 1, and a top portion of the mouth portion 3. And a bottomed cylindrical body 2 in which a bottom 4 is continuously provided at the lower end, and the outer layer 5 forming the body 2 has a vertical thin section over the entire height range of the body 2. Since a pair of strip-shaped notches 7 are provided at symmetrical positions with respect to the center axis of the body 2, the inner layer 6 portion corresponding to the notches 7 is exposed in the form of a vertical strip over the entire height range of the body 2. As a result of this formation of the cutout portion 7, the intrusion portion 8 is formed at the contact portion between the outer layer 5 and the inner layer 6 on both side edge portions of the cutout portion 7.
【００２５】外層５と内層６とを接着固定する接着帯９
は、胴部２に形成された欠部７に対して、胴部２の中心
軸に関して、中心角で９０°の位置、すなわち両欠部７
に対して等距離となる箇所に一対（図２参照）設けられ
ている。Adhesive band 9 for adhesively fixing outer layer 5 and inner layer 6 together
Is a position at a central angle of 90 ° with respect to the central axis of the body portion 2 with respect to the notch portion 7 formed in the body portion 2, that is, both the notched portions 7
A pair (see FIG. 2) is provided at a location that is equidistant from.
【００２６】このように、接着帯９は、欠部７に対して
中心角９０°変位した箇所、すなわち周方向に沿って欠
部７から最も離れた箇所に位置することになるが、この
位置は、侵入部８から発生する外層５に対する内層６の
剥離が最も遅れて発生する箇所であるので、内層６の、
外層５から剥離しながらの容積縮小変形は、接着帯９の
固定作用に影響されることなく、自然にかつ円滑に達成
されることになり、このため内層６の容積縮小変形は、
一定した形態で、安定して無理なく達成されることにな
る。As described above, the adhesive band 9 is located at a position displaced by 90 ° with respect to the cutout 7, that is, at a position farthest from the cutout 7 along the circumferential direction. Is the location where the peeling of the inner layer 6 from the outer layer 5 generated from the intrusion portion 8 occurs most delayed, so that
The volume reduction deformation while peeling from the outer layer 5 is naturally and smoothly achieved without being affected by the fixing action of the adhesive band 9, and therefore the volume reduction deformation of the inner layer 6 is
It will be achieved consistently and reasonably in a consistent form.
【００２７】この壜体１のブロー成形は、図４および図
５に示すように、対称位置に一対の切欠き部１３を設け
た外筒１１と、この外筒１１の内側に位置する円筒状の
内筒１２と、外筒１１と内筒１２との間の、切欠き部１
３に対して中心角９０°変位した箇所に位置する細帯状
の接着帯９とを共押出ししてパリソン１０を押出し成形
し、このパリソン１０をブロー成形割り金型で壜体１に
ブロー成形する。As shown in FIGS. 4 and 5, the bottle 1 is blow-molded by an outer cylinder 11 having a pair of notches 13 at symmetrical positions and a cylindrical shape inside the outer cylinder 11. Notch portion 1 between the inner cylinder 12 and the outer cylinder 11 and the inner cylinder 12.
3. The parison 10 is extrusion-molded by co-extruding the thin strip-shaped adhesive band 9 located at a position displaced by 90 ° with respect to 3, and the parison 10 is blow-molded on the bottle body 1 by a blow molding split mold. .
【００２８】パリソン１０は、その径寸法が、成形目的
品である壜体１の口部３の径寸法よりも大きく設定され
ており、そしてパリソン１０の壜体１へのブロー成形
は、ブロー成形割り金型に対してパリソン１０を、ブロ
ー成形割り金型の型締め方向に対して直交する方向に両
切欠き部１３を位置させた姿勢、すなわち切欠き部１３
をパーティングライン上に位置させる姿勢にして達成す
る。The diameter of the parison 10 is set to be larger than the diameter of the mouth portion 3 of the bottle 1 which is a molding object, and the blow molding of the parison 10 into the bottle 1 is blow molding. A posture in which the parison 10 is positioned with respect to the split mold and both cutouts 13 are positioned in a direction orthogonal to the mold clamping direction of the blow molding split mold, that is, the cutout 13
Position it on the parting line.
【００２９】このため、壜体１の口部３および底部４が
バリ出し成形となるので、口部３と底部４には、切欠き
部１３による欠部７は成形されず、欠部７はバリ出し成
形のない胴部２だけに成形されることになり、また図３
から明らかなように、接着帯９がブロー成形割り金型の
型締め方向に位置しているので、この接着帯９は底部４
のパーティングラインまで達することになり、これによ
り喰い切り部分である底部４のパーティングラインにお
ける外層５と内層６とは、接着帯９により接着固定され
た状態となり、また底部４のパーティングラインにおけ
る外層５同士の喰い切り端縁間は、接着帯９で接着固定
されることになり、外層５と内層６とを剥離自在な合成
樹脂材料で成形したことによる、底部４の機械的強度の
低下を防止している。For this reason, since the mouth portion 3 and the bottom portion 4 of the bottle body 1 are formed by deburring, the notch portion 13 by the notch portion 13 is not formed at the mouth portion 3 and the bottom portion 4, and the notch portion 7 is formed. It will be molded only on the body part 2 without burr molding, and as shown in FIG.
As is clear from the above, since the adhesive band 9 is located in the mold clamping direction of the blow molding split mold, the adhesive band 9 is located at the bottom portion 4
The outer layer 5 and the inner layer 6 in the parting line of the bottom part 4 which is the cut-off portion are bonded and fixed by the adhesive band 9, and the parting line of the bottom part 4 is reached. The outer edge 5 of the outer layer 5 is bonded and fixed by the adhesive band 9 between the outer edge 5 and the outer layer 5 and the inner layer 6 are formed of a peelable synthetic resin material. It prevents the decline.
【００３０】図６および図７は、本発明による壜体１の
他の実施例を示すもので、図１ないし図３に示した実施
例の壜体１の胴部２に、熱収縮性合成樹脂製フィルムで
成形されたシュリンクラベル１４を、胴部２の略全高さ
範囲にわたって被覆状に巻回組付けしたものである。FIGS. 6 and 7 show another embodiment of the bottle body 1 according to the present invention. The body 2 of the bottle body 1 of the embodiment shown in FIGS. 1 to 3 is heat-shrinkable. The shrink label 14 formed of a resin film is wound and assembled in a cover shape over substantially the entire height range of the body 2.
【００３１】このシュリンクラベル１４の胴部２への巻
回組付けにより、欠部７を設けたことにより発生する外
層５の胴部２部分の機械的強度不足、すなわち壜体１に
作用する押下げ力により胴部２の外層５部分が拡径方向
に変形し易くなると云う機械的強度不足を補強してい
る。By the winding and assembling of the shrink label 14 on the body portion 2, the mechanical strength of the body portion 2 portion of the outer layer 5 caused by the provision of the notch 7 is insufficient, that is, the pushing force acting on the bottle body 1 is exerted. The mechanical strength deficiency in which the outer layer 5 portion of the body portion 2 is easily deformed in the radial direction by the lowering force is reinforced.
【００３２】このシュリンクラベル１４の胴部２への巻
回組付けにより、胴部２の欠部７がシュリンクラベル１
４で覆われることになるが、胴部２の上端部分である肩
部の欠部７は露出した状態のままであるので、内層６の
外層５からの剥離は、この肩部の欠部７における侵入部
８から支障なく生じさせることができ、シュリンクラベ
ル１４を設けることによる内層６の外層５に対する剥離
動作に悪影響を与えることはない。By winding and assembling the shrink label 14 around the body portion 2, the notch 7 of the body portion 2 becomes the shrink label 1.
However, since the notch 7 of the shoulder, which is the upper end portion of the body 2, remains exposed, the peeling of the inner layer 6 from the outer layer 5 is caused by the notch 7 of the shoulder. It can be generated without any trouble from the intrusion portion 8 and does not adversely affect the peeling operation of the inner layer 6 from the outer layer 5 by providing the shrink label 14.
【００３３】なお、上記した実施例においては、壜体１
を外層５と内層６との二層構造として説明したが、内層
６は単層構造に特定されるものではなく、例えば外側に
外層５との剥離性を有する合成樹脂製の層を、そして内
側に耐内容液性に優れた合成樹脂製の層を積層したもの
としても良いことは云うまでもない。In the above embodiment, the bottle body 1
Was described as a two-layer structure of the outer layer 5 and the inner layer 6, but the inner layer 6 is not limited to a single-layer structure, and for example, a synthetic resin layer having peelability from the outer layer 5, and an inner layer Needless to say, a layer of synthetic resin having excellent resistance to liquid content may be laminated.
【００３４】[0034]
【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。壜体底部の金型喰い切り
部の外層同士を接合した状態のままとしたので、底部に
開口部を開設することによる底部の機械的強度の劣化が
皆無となり、もって外部の機械的強度の劣化による注出
ポンプの操作性の不良発生とか、壜体の座りが不安定と
なる等の不都合の発生を皆無とすることができる。Since the present invention has the above-described structure, the following effects can be obtained. Since the outer layers of the mold cutting part at the bottom of the bottle were kept joined, the mechanical strength of the bottom part was not deteriorated by opening an opening in the bottom part, and therefore the external mechanical strength was deteriorated. It is possible to eliminate the occurrence of inconveniences such as the poor operability of the pouring pump and the unstable sitting of the bottle.
【００３５】外層と内層との間への空気の侵入口を形成
する侵入部を、壜体成形と同時に壜体胴部に成形される
欠部により形成したので、商品である壜体購入後に、空
気侵入口を開口形成するための特別な取扱い操作を要す
ることがなく、もって壜体の取扱いが面倒となると云う
不都合の発生を皆無とすることができる。Since the intruding portion which forms the air inlet for the air between the outer layer and the inner layer is formed by the notch formed in the bottle body at the same time as the bottle molding, after purchasing the bottle as the product, There is no need for special handling operation for forming the air inlet, and it is possible to eliminate the inconvenience that the bottle is troublesome to handle.
【００３６】侵入部を形成する縦細帯状の欠部を、肩部
および底部を含む胴部の全高さ範囲にわたって形成した
ので、この欠部を通して、外層内の内層の容積縮小変形
を観察することができ、これにより壜体外からの観察に
より、内容液の消費程度を正確に判断することができ
る。Since the vertical strip-shaped cutout portion forming the intrusion portion is formed over the entire height range of the body portion including the shoulder portion and the bottom portion, the volume reduction deformation of the inner layer in the outer layer is observed through the cutout portion. Therefore, the degree of consumption of the content liquid can be accurately determined by observing from outside the bottle.
【００３７】侵入部を形成する欠部を、胴部の全高さ範
囲にわたって開口形成したので、外層に対する内層の剥
離が、自然な一定した形態で達成されることになり、も
って外層内における内層の内容液の注出消費に従った容
積縮小変形を安定した一定形態で行わせ、これにより注
出ポンプによる内容液の注出動作を、最後まで安定した
ものとすることができる。Since the notch forming the intruding portion is opened over the entire height range of the body, the peeling of the inner layer from the outer layer is achieved in a natural and constant manner, and thus the inner layer in the outer layer is formed. The volume reduction deformation according to the pouring consumption of the content liquid is performed in a stable and constant form, whereby the pouring operation of the content liquid by the pouring pump can be made stable until the end.
【００３８】壜体の口部と底部とをバリ出し成形とした
ので、外筒の一部に長さ方向に沿った切欠き部を設けた
単純な構造のパリソンから、通常のブロー成形操作によ
り、胴部だけに欠部を設けた壜体を成形することがで
き、もって胴部に欠部を設けた壜体を簡単に成形するこ
とができる。Since the mouth portion and the bottom portion of the bottle body are formed by flash molding, a parison having a simple structure in which a notch along the length direction is provided in a part of the outer cylinder is used to perform a general blow molding operation. It is possible to mold a bottle body in which a notch is provided only in the body portion, and thus it is possible to easily form a bottle body in which the body portion has a notch portion.
【図１】本発明に係る壜体の一実施例を示す正面図。FIG. 1 is a front view showing an embodiment of a bottle according to the present invention.
【図２】図１に示した実施例の、Ａ−Ａ線に沿って切断
矢視した平断面図。FIG. 2 is a plan sectional view of the embodiment shown in FIG. 1, taken along the line AA and viewed from a cutting direction.
【図３】図１に示した実施例の底面図。3 is a bottom view of the embodiment shown in FIG.
【図４】本発明により壜体にブロー成形される、パリソ
ンの一実施例を示す正面図。FIG. 4 is a front view showing an embodiment of a parison blow-molded into a bottle according to the present invention.
【図５】図４に示したパリソンの実施例の、Ｂ−Ｂ線に
沿って切断矢視した平断面図。5 is a cross-sectional plan view of the embodiment of the parison shown in FIG. 4, taken along the line BB.
【図６】本発明の壜体の他の実施例を示す正面図。FIG. 6 is a front view showing another embodiment of the bottle of the present invention.
【図７】図６に示した実施例のＣ−Ｃ線に沿って切断矢
視した平断面図。7 is a plan sectional view taken along the line C-C of the embodiment shown in FIG.
１ ； 壜体 ２ ； 胴部 ３ ； 口部 ４ ； 底部 ５ ； 外層 ６ ； 内層 ７ ； 欠部 ８ ； 侵入部 ９ ； 接着帯 １０； パリソン １１； 外筒 １２； 内筒 １３； 切欠き部 １４； シュリンクラベル 1; Bottle 2; Body part 3; Mouth part 4; Bottom part 5; Outer layer 6; Inner layer 7; Missing part 8; Penetrating part 9; Adhesive band 10; Parison 11; Outer cylinder 12; Inner cylinder 13; Notch part 14 ; Shrink label
Claims (7)
る合成樹脂製の外層(5) と、該外層(5) 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(6) と
から構成され、胴部(2) の全高さ範囲にわたって、前記
外層(5) の一部に、前記内層(6) の一部を縦細帯状に露
出させる欠部(7) を開設した壜体。1. An outer layer (5) made of synthetic resin which forms a fixed outer shell by blow molding, and a flexible synthetic resin which is releasably laminated on the outer layer (5) and forms an inner bag. An inner layer (6) and a notch (7) that exposes a part of the inner layer (6) in the form of a vertical strip in a part of the outer layer (5) over the entire height range of the body (2). The bottle that opened.
の部分で全高さ範囲にわたって縦帯状の接着帯(9) で接
着した請求項１に記載の壜体。2. The bottle body according to claim 1, wherein the outer layer (5) and the inner layer (6) are bonded to each other by a vertical band-shaped adhesive band (9) over the entire height range except the cutout part (7).
称に二つ設けた請求項１または２に記載の壜体。3. The bottle according to claim 1, wherein two notches (7) are provided symmetrically with respect to the center of the body (2).
なる二箇所に設けた請求項３に記載の壜体。4. The bottle according to claim 3, wherein the adhesive strips (9) are provided at two positions in the middle of the two cutouts (7).
回固定した請求項１または２または３または４に記載の
壜体。5. The bottle according to claim 1, wherein the shrink label (14) is wound around and fixed to the body (2).
該内筒(12)の一部を露出させる縦細帯状の切欠き部(13)
を有する、前記内筒(12)に対して剥離自在な合成樹脂製
の外筒(11)を接合したパリソン(10)を共押出し成形によ
り成形し、該パリソン(10)を、前記切欠き部(13)を喰い
切る方向から口部(3) と底部(4) とをバリ出し成形して
壜体(1) にブロー成形する壜体の成形方法。6. An inner cylinder (12) made of flexible synthetic resin,
Vertical strip-shaped notch (13) exposing a part of the inner cylinder (12)
Having a parison (10) in which an outer cylinder (11) made of synthetic resin that can be separated from the inner cylinder (12) is joined by coextrusion molding, and the parison (10) is provided with the cutout portion. A bottle molding method in which the mouth (3) and the bottom (4) are burr-molded from the direction in which the (13) is cut off and blow-molded into the bottle (1).
と一緒に共押出ししてパリソン(10)を成形する請求項６
に記載の壜体の成形方法。7. The inner tube (12) and the outer tube (11) are provided with an adhesive band (9).
7. A parison (10) is co-extruded with to form a parison (10).
The method for molding a bottle described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16133194A JP3336351B2 (en) | 1994-07-13 | 1994-07-13 | Bottle and molding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16133194A JP3336351B2 (en) | 1994-07-13 | 1994-07-13 | Bottle and molding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0826241A true JPH0826241A (en) | 1996-01-30 |
| JP3336351B2 JP3336351B2 (en) | 2002-10-21 |
Family
ID=15733059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16133194A Expired - Lifetime JP3336351B2 (en) | 1994-07-13 | 1994-07-13 | Bottle and molding method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3336351B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002337836A (en) * | 2001-05-18 | 2002-11-27 | Heiwa Kagaku Kogyosho:Kk | Container adaptable to partial recovery and partial disposal |
| WO2003037725A1 (en) * | 2001-10-31 | 2003-05-08 | Yoshino Kogyosho Co., Ltd. | Blow-molded container |
| WO2003037726A1 (en) * | 2001-10-31 | 2003-05-08 | Yoshino Kogyosho Co., Ltd | Blow-molded container |
| KR100915728B1 (en) * | 2001-10-31 | 2009-09-04 | 가부시키가이샤 요시노 고교쇼 | Blow-molded container |
| JP2014091530A (en) * | 2012-10-31 | 2014-05-19 | Yoshino Kogyosho Co Ltd | Blow-molded container and method of treating inner layer |
| US8857655B2 (en) | 2010-06-24 | 2014-10-14 | Gaplast Gmbh | Container having an inner bag |
-
1994
- 1994-07-13 JP JP16133194A patent/JP3336351B2/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002337836A (en) * | 2001-05-18 | 2002-11-27 | Heiwa Kagaku Kogyosho:Kk | Container adaptable to partial recovery and partial disposal |
| AU2002343802B2 (en) * | 2001-10-31 | 2007-11-22 | Yoshino Kogyosho Co., Ltd. | Blow-molded container |
| WO2003037726A1 (en) * | 2001-10-31 | 2003-05-08 | Yoshino Kogyosho Co., Ltd | Blow-molded container |
| US6976600B2 (en) | 2001-10-31 | 2005-12-20 | Yoshino Kogyosho Co., Ltd. | Blow-molded container that is peelably laminated |
| US7055707B2 (en) | 2001-10-31 | 2006-06-06 | Yoshino Kogyosho Co., Ltd. | Peelably laminated blow-molded containers |
| CN1332856C (en) * | 2001-10-31 | 2007-08-22 | 株式会社吉野工业所 | Blow-molded container |
| WO2003037725A1 (en) * | 2001-10-31 | 2003-05-08 | Yoshino Kogyosho Co., Ltd. | Blow-molded container |
| KR100915728B1 (en) * | 2001-10-31 | 2009-09-04 | 가부시키가이샤 요시노 고교쇼 | Blow-molded container |
| KR100937782B1 (en) * | 2001-10-31 | 2010-01-20 | 가부시키가이샤 요시노 고교쇼 | Blow-molded container |
| EP2468642A1 (en) * | 2001-10-31 | 2012-06-27 | Yoshino Kogyosyo Co., Ltd. | Blow-molded container |
| US8857655B2 (en) | 2010-06-24 | 2014-10-14 | Gaplast Gmbh | Container having an inner bag |
| US9199785B2 (en) | 2010-06-24 | 2015-12-01 | Gaplast Gmbh | Container having an inner bag |
| JP2014091530A (en) * | 2012-10-31 | 2014-05-19 | Yoshino Kogyosho Co Ltd | Blow-molded container and method of treating inner layer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3336351B2 (en) | 2002-10-21 |
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