JP4936249B2 - Blow molded container made of synthetic resin - Google Patents

Blow molded container made of synthetic resin Download PDF

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JP4936249B2
JP4936249B2 JP2007048413A JP2007048413A JP4936249B2 JP 4936249 B2 JP4936249 B2 JP 4936249B2 JP 2007048413 A JP2007048413 A JP 2007048413A JP 2007048413 A JP2007048413 A JP 2007048413A JP 4936249 B2 JP4936249 B2 JP 4936249B2
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outer layer
inner layer
base end
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正史 米山
茂雄 飯塚
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Yoshino Kogyosho Co Ltd
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Description

本発明は、外殻を形成する外層と、この外層に剥離自在に積層する可撓性の内袋を形成する内層とから成る合成樹脂製ブロー成形容器に関するものである。   The present invention relates to a synthetic resin blow-molded container comprising an outer layer forming an outer shell and an inner layer forming a flexible inner bag that is detachably laminated on the outer layer.

外殻を形成する外層と、この外層に剥離自在に積層する可撓性の内袋を形成する内層とから成る合成樹脂製ブロー成形容器、所謂デラミボトルでは、外層と内層の間に外気を導入するための吸気孔を穿孔する必要である。
たとえば、特許文献１には、ポンチカッタを用いて口筒部の外層部分に吸気孔を開口する方法についての記載がある。
特開平８−３１０５３４号公報 In a so-called Delami bottle, which is a synthetic resin blow-molded container composed of an outer layer forming an outer shell and an inner layer forming a flexible inner bag that is detachably laminated on the outer layer, outside air is introduced between the outer layer and the inner layer. It is necessary to perforate the air intake hole.
For example, Patent Document 1 describes a method of opening an intake hole in an outer layer portion of a mouth tube portion using a punch cutter.
JP-A-8-310534

しかしながら、上記した特許文献１に記載のある従来技術では、ポンチカッタにより外層に穿孔するために、この穿孔作業に精度が要求され、また容器の種類の相違等による外層の肉厚の変化によってもその押し込みの程度を厳密に調整する必要があり、厳密な設定にもかかわらず内層に刃型痕が残る可能性がある。   However, in the prior art described in Patent Document 1 described above, since the outer layer is punched by a punch cutter, accuracy is required for this drilling operation, and the outer layer thickness changes due to differences in the type of container. It is necessary to strictly adjust the degree of indentation, and there is a possibility that a blade trace will remain in the inner layer despite the strict setting.

本発明は、内層を傷付けることなく吸気孔の穿孔作業が容易に実施することができるデラミボトルを提供することを課題とするものである。   It is an object of the present invention to provide a delami bottle that can easily carry out a perforating operation of an air intake hole without damaging an inner layer.

上記技術的課題を解決する本発明の内、請求項１記載の発明の手段は、
外殻を形成する外層と、この外層に剥離自在に積層し、内袋を形成する内層とから成る合成樹脂製ブロー成形容器において、
口筒部の周壁に形成した内層の膨出部の先端部近傍に積層する外層部分で、先端部周縁を基端部として、この基端部を引き千切り可能に扁平状の摘み片を起立形成し、基端部はノッチ状の形状とし、
内層の膨出部は容器のブロー成形時に口筒部の周壁の一部を外層(2)と共に膨出成形することにより形成したものとし、
摘み片は内層の先端部近傍に積層する外層部分をブロー成形に使用する割金型の合わせ面でプレス状にして形成したものとし、
基端部のノッチ状の形状は膨出部の形成時に金型キャビティの形状に沿って形成したものとし、
この摘み片により、内層の先端部近傍から外層を剥離状に除去し、外層と内層の間に外気を導入する吸気孔を開設する構成とすること、にある。
Among the present invention for solving the above technical problems, the means of the invention according to claim 1 is:
In a synthetic resin blow-molded container comprising an outer layer that forms an outer shell, and an outer layer that is detachably laminated on the outer layer and forms an inner bag,
An outer layer layered near the distal end of the inner layer bulge formed on the peripheral wall of the mouth tube, with the peripheral edge of the distal end as the base end, and a flat tab that can be shredded to stand upright And the base end has a notch shape,
The bulging portion of the inner layer is formed by bulging and molding a part of the peripheral wall of the mouth tube portion together with the outer layer (2) during blow molding of the container,
The knob is formed by pressing the outer layer part laminated in the vicinity of the tip of the inner layer on the mating surface of the split mold used for blow molding,
The notch shape of the base end is assumed to be formed along the shape of the mold cavity when the bulge is formed,
With this knob, the outer layer is removed in a peeled manner from the vicinity of the tip of the inner layer, and an intake hole for introducing outside air is formed between the outer layer and the inner layer.

請求項１記載の上記構成により、外層で形成された摘み片をもぎ取るようにして、膨出状に形成された内層の先端部周縁に位置する基端部を引き千切り、内層の先端部近傍から外層を剥離状に除去することにより、吸気孔を開設することができる。   According to the configuration of claim 1, the base end located at the periphery of the tip of the inner layer formed in a bulging shape is shredded so as to tear off the tab formed in the outer layer, and from the vicinity of the tip of the inner layer By removing the outer layer in a peeled manner, the intake holes can be opened.

ここで、外層と内層は剥離自在に積層しているので、基端部の引き千切りは、外層のみに限定され、内層部分までは進行することが無いので、一端、先端部周縁で外層を破断すれば、内層の先端部近傍から外層を剥離して除去することができ、内層を傷付けることなく吸気孔を開設することができる。   Here, since the outer layer and the inner layer are detachably laminated, the base end portion of the shredder is limited to the outer layer only, and does not proceed to the inner layer portion, so the outer layer is broken at the edge of the tip end. Then, the outer layer can be peeled off from the vicinity of the tip of the inner layer, and the intake hole can be opened without damaging the inner layer.

また、摘み片の基端部をノッチ状の形状とすることにより、基端部の引き千切りを容易に実施することができる。
 Further, by making the base end portion of the knob piece into a notch shape, the base end portion can be easily shredded.

また、口筒部は肉厚であるので外層で摘み片を容易に形成することができ、また口筒部に嵌着するキャップ等を利用して、吸気孔に容易に逆止弁を配設することができ、スクイズ容器として利用し易い。
 In addition , since the mouth tube part is thick, it is possible to easily form the knob on the outer layer, and a check valve is easily provided in the intake hole using a cap fitted to the mouth tube part. Can be used as a squeeze container.

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。
請求項１記載の発明にあっては、摘み片により膨出状に形成された内層の先端部周縁に位置する基端部を引き千切り、内層の先端部近傍から外層を剥離状に除去することにより、内層を傷付けることなく吸気孔を開設することができる。 Since the present invention has the above-described configuration, the following effects can be obtained.
In the first aspect of the invention, the base end located at the peripheral edge of the tip of the inner layer formed in a bulging shape by the knob is torn off and the outer layer is removed in a peeled manner from the vicinity of the tip of the inner layer. Thus, the intake hole can be opened without damaging the inner layer.

また、摘み片の基端部をノッチ状の形状とすることにより、ノッチ状の形状を利用して基端部の引き千切りを容易に実施することができる。
 Further, by making the base end portion of the knob piece into a notch shape, the base end portion can be easily shredded using the notch shape.

また、口筒部は肉厚であるので外層による摘み片を容易に形成することができ、また口筒部に嵌着するキャップ等を利用して、吸気孔に容易に逆止弁を配設することができ、スクイズ容器として利用し易い。

 In addition , since the mouth tube part is thick, it is possible to easily form a knob with an outer layer, and a check valve is easily provided in the intake hole using a cap fitted to the mouth tube part. Can be used as a squeeze container.

以下、本発明の実施の形態を実施例に沿って、図面を参照しながら説明する。
図１は、本発明による合成樹脂製ブロー成形容器の一実施例を部分的に縦断して示す正面図ある。
この容器１は口筒部４、肩部６、円筒状の胴部７そして底部を有する壜体であり、外殻を形成する外層２と、この外層２に剥離自在に積層し、内袋を形成する内層３とから成る積層構造を有するデラミボトルである。
なお、この容器１は口筒部４に手動ポンプを配設してポンプ付き注出容器として、また胴部７をスクイズして内容液を注出するスクイズ容器の容器本体として使用することができる。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described along examples with reference to the drawings.
FIG. 1 is a front view of a synthetic resin blow-molded container according to an embodiment of the present invention partially cut vertically.
This container 1 is a casing having a mouth tube part 4, a shoulder part 6, a cylindrical body part 7, and a bottom part, and an outer layer 2 that forms an outer shell, and an outer bag 2 that is detachably laminated on the outer layer 2. It is a Delami bottle having a laminated structure composed of the inner layer 3 to be formed.
In addition, this container 1 can be used as a container with a pump by disposing a manual pump in the mouth tube part 4, and as a container body of a squeeze container for squeezing the body part 7 and pouring the content liquid. .

口筒部４の周壁には摘み片１４を起立配設している。図２はこの摘み片１４の近傍を拡大して示す縦断面図であり、図３は摘み片１４の３次元的な形状を示すための容器１の斜視図である。
この摘み片１４は内層３の膨出部１１の先端部１２の近傍に積層する外層２部分で、この先端部１２の周縁を基端部１３として、口筒部４の周壁から起立形成されたものであり、円周状の基端部１３はノッチ状にノッチ部１３ｎが形成されている。 A knob 14 is erected on the peripheral wall of the mouth tube portion 4. FIG. 2 is an enlarged longitudinal sectional view showing the vicinity of the knob piece 14, and FIG. 3 is a perspective view of the container 1 for showing the three-dimensional shape of the knob piece 14.
The knob 14 is an outer layer 2 portion laminated in the vicinity of the distal end portion 12 of the bulging portion 11 of the inner layer 3, and is formed upright from the peripheral wall of the mouth tube portion 4 with the peripheral edge of the distal end portion 12 as a base end portion 13. The circumferential base end portion 13 is formed with a notch portion 13n in a notch shape.

また、摘み片１４の先端部は指先、あるいはペンチのような治具等で摘み易いように扁平状にしており、この先端部分を摘んで、引張ったり、捻るようにすることにより、基端部１３のノッチ部１３ｎを利用して、ノッチ部１３ｎの先端から内層３との界面までの外層２部分を周状に引き千切り状に破断すると共に内層３の先端部１２近傍から外層２を剥離状に除去して、外層２と内層３の間に外気を導入するための吸気孔５を開設することができる。（図２（ｂ）参照）   The tip of the knob 14 is flat so that it can be easily picked with a fingertip or a jig such as a pliers. By pulling the tip and pulling or twisting, the base end Using the 13 notches 13n, the outer layer 2 from the tip of the notch 13n to the interface with the inner layer 3 is pulled circumferentially and broken into pieces, and the outer layer 2 is peeled off from the vicinity of the tip 12 of the inner layer 3 The intake hole 5 for introducing the outside air between the outer layer 2 and the inner layer 3 can be opened. (See Fig. 2 (b))

なお、摘み片１４を除去した後で、内層３の膨出部１１を図２（ｂ）の２点鎖線で示されるように内方に予め押し込んでおくことにより、外気の導入をスムーズに進行させることができる。   After removing the knob 14, the bulging portion 11 of the inner layer 3 is pushed inward in advance as indicated by a two-dot chain line in FIG. Can be made.

ここで、内層３の膨出部１１は容器１のブロー成形時に口筒部４の周壁の一部を外層２と共に膨出成形することにより形成することができる。
そして、摘み片１４は内層３の先端部分１２近傍に積層する外層２部分をブロー成形に使用する割金型の合わせ面でプレス状にして形成することができる。
また、基端部１３におけるノッチ部１３ｎは膨出部１１の形成時に金型キャビティの形状に沿って形成することができるが、型刃を用いた後加工によればより鋭いノッチを形成するができる。 Here, the bulging portion 11 of the inner layer 3 can be formed by bulging and forming a part of the peripheral wall of the mouth tube portion 4 together with the outer layer 2 when the container 1 is blow-molded.
Then, the knob 14 can be formed by pressing the outer layer 2 portion laminated in the vicinity of the tip portion 12 of the inner layer 3 with a mating surface of a split die used for blow molding.
Further, the notch portion 13n in the base end portion 13 can be formed along the shape of the mold cavity when the bulging portion 11 is formed, but a sharper notch is formed by post-processing using a mold blade. it can.

図４は、摘み片１４の他の実施例を示す縦断面図である。
摘み片１４を形成する際に、その基端部１３周縁の外層２を凹状に形成した例である。 FIG. 4 is a longitudinal sectional view showing another embodiment of the knob 14.
This is an example in which the outer layer 2 around the base end portion 13 is formed in a concave shape when the knob 14 is formed.

以上、実施例に沿って本発明の実施の形態を説明したが、勿論本発明はこの実施例に限定されるものではない。
As mentioned above, although the embodiment of the present invention has been described according to the example, the present invention is not limited to this example .

以上説明したように本発明の合成樹脂製ブロー成形容器は、摘み片により内層を傷付けることなく、吸気孔の穿孔作業が容易に実施することができるデラミボトルを提供でき、より広い分野での展開が期待される。   As described above, the synthetic resin blow-molded container of the present invention can provide a delamination bottle that can easily perform the work of perforating the air intake hole without damaging the inner layer by the knob, and can be developed in a wider field. Be expected.

本発明の容器の一実施例を部分的に縦断して示す正面図である。It is a front view which partially shows one Example of the container of this invention longitudinally. （ａ）は図１中の摘み片近傍を拡大して示す、（ｂ）は摘み片を取り除いた状態を示す縦断面図である。(A) is an enlarged view of the vicinity of the knob in FIG. 1, and (b) is a longitudinal sectional view showing a state in which the knob is removed. 図１の容器の斜視図である。It is a perspective view of the container of FIG. 本発明の容器の他の実施例を、図２と同様に示す縦断面図である。It is a longitudinal cross-sectional view which shows the other Example of the container of this invention similarly to FIG.

符号の説明Explanation of symbols

１ ；容器
２ ；外層
３ ；内層
４ ；口筒部
５ ；吸気孔
６ ；肩部
７ ；胴部
１１；膨出部
１２；先端部
１３；基端部
１３ｎ；ノッチ部
１４；摘み片 DESCRIPTION OF SYMBOLS 1; Container 2; Outer layer 3; Inner layer 4; Mouth part 5; Inlet hole 6; Shoulder part 7; Trunk part 11; The bulging part 12; The front-end | tip part 13; The base end part 13n;

Claims (1)

外殻を形成する外層(2)と、該外層(2)に剥離自在に積層し、内袋を形成する内層(3)とから成る合成樹脂製ブロー成形容器であって、
口筒部(4)の周壁に形成した前記内層(3)の膨出部(11)の先端部(12)近傍に積層する外層(2)部分で、前記先端部(12) 周縁を基端部(13)として、該基端部(13)を引き千切り可能に扁平状の摘み片(14)を起立形成し、該基端部(13)はノッチ状の形状とし、
前記内層(3)の膨出部(11)は容器のブロー成形時に口筒部(4)の周壁の一部を外層(2)と共に膨出成形することにより形成したものとし、
前記摘み片(14)は内層(3)の先端部(12)近傍に積層する外層(2)部分をブロー成形に使用する割金型の合わせ面でプレス状にして形成したものとし、
前記基端部(13)のノッチ状の形状は前記膨出部(11)の形成時に金型キャビティの形状に沿って形成したものとし、
該摘み片(14)により、前記内層(3)の先端部(12)近傍から外層(2)を剥離状に除去して、前記外層(2)と内層(3)の間に外気を導入する吸気孔(5)を開設する構成とした合成樹脂製ブロー成形容器。
A synthetic resin blow-molded container comprising an outer layer (2) that forms an outer shell, and an outer layer (2) that is detachably laminated to form an inner bag (3),
The outer layer (2) portion laminated in the vicinity of the distal end portion (12) of the bulging portion (11) of the inner layer (3) formed on the peripheral wall of the mouth tube portion (4), and the periphery of the distal end portion (12) is the base end as part (13), shredded capable flat the tab pulling the base end portion (13) to (14) were formed upright, the base end portion (13) is a notch-like shape,
The bulging portion (11) of the inner layer (3) is formed by bulging and forming a part of the peripheral wall of the mouth tube portion (4) together with the outer layer (2) during blow molding of the container,
The knob (14) is formed by pressing the outer layer (2) portion laminated in the vicinity of the tip (12) of the inner layer (3) in a press shape with the mating surface of the split mold used for blow molding,
The notch-shaped shape of the base end portion (13) is formed along the shape of the mold cavity when forming the bulge portion (11),
With the knob (14), the outer layer (2) is peeled off from the vicinity of the tip (12) of the inner layer (3) to introduce outside air between the outer layer (2) and the inner layer (3). A synthetic resin blow-molded container configured to open an intake hole (5).
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JP2017145020A (en) * 2016-02-16 2017-08-24 株式会社平和化学工業所 Double container and method for manufacturing the same
WO2017142027A1 (en) * 2016-02-16 2017-08-24 株式会社平和化学工業所 Double-layered container and method for production of same
KR20180113574A (en) * 2016-02-16 2018-10-16 가부시끼가이샤 헤이와 가가꾸 고교쇼 Double vessel and its manufacturing method
CN108698731A (en) * 2016-02-16 2018-10-23 株式会社平和化学工业所 Double container and its manufacturing method
US10786941B2 (en) 2016-02-16 2020-09-29 Heiwa Kagaku Industry Co., Ltd. Double-layered container and method for production of the same
KR102227322B1 (en) * 2016-02-16 2021-03-11 가부시끼가이샤 헤이와 가가꾸 고교쇼 Double container and its manufacturing method

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