JP6345509B2 - Container with cap - Google Patents

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Publication number
JP6345509B2
JP6345509B2 JP2014133361A JP2014133361A JP6345509B2 JP 6345509 B2 JP6345509 B2 JP 6345509B2 JP 2014133361 A JP2014133361 A JP 2014133361A JP 2014133361 A JP2014133361 A JP 2014133361A JP 6345509 B2 JP6345509 B2 JP 6345509B2
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cap
shoulder
container
neck
mouth
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JP2016011126A (en
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夏生 桝屋
夏生 桝屋
英明 染谷
英明 染谷
和田　潔
潔 和田
齋藤　等
等 齋藤
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Toyo Seikan Kaisha Ltd
Toppan Inc
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Toyo Seikan Kaisha Ltd
Toppan Inc
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Description

本発明は、チューブ容器などの可撓性容器とキャップとからなるキャップ付き容器に関するもので、特に、口頸部と胴部との間の肩部を押し潰しやすくしたキャップ付き容器に関するものある。 The present invention relates to a cap-equipped container composed of a flexible container such as a tube container and a cap, and more particularly to a cap-equipped container that facilitates crushing the shoulder between the mouth and neck and the trunk.

従来、粘性の比較的高い流動物（粘液体）、ペースト状や粘稠性を有するもの、半固形のものなどを内容物とする容器は、容器の胴径より小さい開口を有して可撓性を有する容器であって、容器の可撓性部分を押し潰すことで内容物を開口から押し出して使用するものが知られている。このような可撓性容器は、一般に、胴部と、胴部の径より小さい開口を有する口頸部（首部）を備え、胴部から口頸部に至るまで徐々に径を小さくする肩部を備えている。   Conventionally, containers having a relatively high viscosity fluid (viscous liquid), paste-like or viscous, semi-solid contents, etc., have an opening smaller than the diameter of the container and are flexible. There is known a container having the property of pushing out the contents from the opening by crushing the flexible part of the container. Such a flexible container generally includes a trunk and a mouth and neck (neck) having an opening smaller than the diameter of the trunk, and a shoulder that gradually decreases in diameter from the trunk to the mouth and neck. It has.

このように胴部，肩部，口頸部を有する可撓性容器は、胴部に対して肩部が押し潰しに対して高い剛性を有するので、肩部に残った内容物を容易に絞り出すことができない問題がある。これに対して、下記特許文献１に記載された従来技術は、肩部をドーム形状部にして、ドーム形状部の下方に周方向にリング状の肩部溝を設け、ドーム形状部に縦方向の外側に盛り上がった肩部リブを設けることを提案している。   As described above, the flexible container having the trunk, the shoulder, and the mouth and neck has a high rigidity against crushing with respect to the trunk, so that the contents remaining on the shoulder can be easily squeezed out. There is a problem that can not be. On the other hand, in the prior art described in Patent Document 1 below, the shoulder portion is a dome-shaped portion, a ring-shaped shoulder groove is provided in the circumferential direction below the dome-shaped portion, and the dome-shaped portion is longitudinally oriented. It is proposed to provide a raised shoulder rib on the outside.

特開２０１４−１９４６０号公報JP 2014-19460 A

前述した従来技術は、肩部を押し潰すことができて、内容物を押し出しやすくすることができ、リング状の肩溝部によって押し潰した肩部が自然に元の形状に戻りやすくしている。しかしながら、この従来技術のように押し潰した肩部が自然に元に戻るようにすると、形状が元に戻る際に開口から容器内に空気が入り込むことになり、次に肩部を押して内容物を押し出す際に直ぐに内容物が出てこなかったり、空気と一緒に内容物が飛び出て使用者の意に反した出かたになるなどの問題がある。   The above-described prior art can crush the shoulder portion and can easily push out the contents, and the shoulder portion crushed by the ring-shaped shoulder groove portion can easily return to its original shape. However, if the crushed shoulder part returns naturally as in this prior art, air will enter the container from the opening when the shape returns to its original state, and then the shoulder part is pushed to the contents. When pushing out, there is a problem that the contents do not come out immediately, or the contents jump out together with the air, which is against the user's will.

また、内容物の種類によっては空気に触れることで酸化等により変質するものがあるので、可能な限り空気を容器内に入れないのが望ましいが、前述した従来技術では、肩部を元の形状に戻した状態で蓋をする構造になっているので、容器内へ空気が入り込むのを避けられない。   In addition, depending on the type of contents, there is something that changes quality due to oxidation etc. by touching air, so it is desirable not to put air into the container as much as possible. Since the structure is such that the lid is closed in the state where it is returned to the position, it is inevitable that air enters the container.

本発明は、このような事情に対処することを課題の一例とするものである。すなわち、可撓性容器において、肩部を押し潰しやすくすることで肩部に残された内容物を押し出しやすくすること、押し潰した状態を保つこと、容器内への空気の入り込みを抑制すること、肩部を押し潰した状態で開口を密封することができるようにすること、これによって空気の入り込みによる内容物の変質を抑止すること、等が本発明の目的である。   This invention makes it an example of a subject to cope with such a situation. That is, in a flexible container, it is easy to push out the contents left on the shoulder by making the shoulder easy to be crushed, to keep the crushed state, and to prevent air from entering the container It is an object of the present invention to make it possible to seal the opening in a state where the shoulder portion is crushed, and thereby to prevent the contents from being deteriorated due to the entry of air.

このような目的を達成するために、本発明によると、胴部と、該胴部より細い口頸部と、前記胴部と前記口頸部との間の肩部とを有し、前記口頸部の先端開口から内容物を押し出す可撓性容器及びキャップからなるキャップ付き容器であって、前記肩部は、軸方向高さが前記胴部の径の０．５〜０．７倍の範囲であり、前記胴部から前記口頸部に向かって曲率半径が前記胴部の径の０．９〜１．２倍の連続曲面を有し、その上端径が前記胴部の径の０．５〜０．７倍となるドーム形状部を有し、前記キャップを前記口頸部に嵌め合わせた際に、前記キャップの開口下端部は前記肩部の軸方向高さの範囲内に位置し、前記肩部の外周と前記キャップの開口下端部との片側隙間が前記キャップの開口下端部の径に対して０．０４倍以上になることを特徴とするキャップ付き容器が提供される。 In order to achieve such an object, according to the present invention, there is provided a torso, a mouth and neck that is thinner than the torso, and a shoulder between the torso and the mouth and neck. A cap-equipped container comprising a flexible container and a cap for extruding contents from a neck end opening , wherein the shoulder has an axial height of 0.5 to 0.7 times the diameter of the trunk. The radius of curvature is 0.9 to 1.2 times the diameter of the trunk, and the upper end diameter is 0 of the diameter of the trunk. have a .5～0.7 times become dome-shaped portion, when the fitting of the cap to the mouth and neck, opening a lower end of the cap located within the axial height of the shoulder portion And the one-side clearance between the outer periphery of the shoulder and the lower end of the opening of the cap is 0.04 times or more the diameter of the lower end of the opening of the cap. A cap attachment container, wherein is provided.

このような特徴を有する本発明の可撓性容器は、胴部と口頸部との間の肩部において、設定寸法の曲率半径の連続曲面を有するドーム形状部を有することで、肩部を押し潰しやすくすると共に押し潰した状態を保つことができ、容器内への空気の入り込みを抑制することができる。また、口頸部の先端開口を塞ぐキャップの開口下端部の径と肩部の外周との寸法関係を適宜に設定することで、肩部を押し潰した状態で先端開口を密封することができるようになり、空気の入り込みによる内容物の変質を効果的に抑止することができる。   The flexible container of the present invention having such a feature has a dome-shaped portion having a continuous curved surface with a radius of curvature of a set dimension at the shoulder portion between the trunk portion and the mouth and neck portion. It can be easily crushed and can be kept in a crushed state, and air can be prevented from entering the container. In addition, by appropriately setting the dimensional relationship between the diameter of the lower end of the opening of the cap that closes the front end opening of the mouth and neck and the outer periphery of the shoulder, the front end opening can be sealed in a state in which the shoulder is crushed. As a result, it is possible to effectively suppress the alteration of the contents due to the entry of air.

本発明の一実施形態に係る可撓性容器の主要部を示した説明図（（ａ）が一方向からみた側面図であり、（ｂ）がそれとは９０°異なる角度からみた側面図）である。BRIEF DESCRIPTION OF THE DRAWINGS In explanatory drawing ((a) is the side view seen from one direction, (b) is the side view seen from the angle different from 90 degrees) which showed the principal part of the flexible container which concerns on one Embodiment of this invention. is there. 本発明の実施形態に係るキャップ付き容器において、キャップを可撓性容器の口頸部に嵌め合わせた状態を示した説明図である。In the container with a cap which concerns on embodiment of this invention, it is explanatory drawing which showed the state which fitted the cap to the mouth neck part of a flexible container. 本発明の実施形態に係るキャップ付き容器におけるキャップの具体例を示した説明図（（ａ）が下面図であり、（ｂ）は（ａ）のＸ−Ｘ断面図）である。BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing which showed the specific example of the cap in the container with a cap concerning embodiment of this invention ((a) is a bottom view, (b) is XX sectional drawing of (a)). 本発明の実施形態に係るキャップ付き容器において、キャップにおける下向き突状部と可撓性容器における突状リブの機能を説明する説明図（水平断面図）である。In the container with a cap which concerns on embodiment of this invention, it is explanatory drawing (horizontal sectional drawing) explaining the function of the downward protrusion part in a cap, and the protrusion rib in a flexible container.

以下、図面を参照して本発明の実施形態を説明する。図１において、可撓性容器１は、練りからし、練りわさび、練り歯磨きなどの食品や非食品を内容物とする容器であって、容器の可撓性部分を押し潰すことで内容物を開口から押し出すことができるものである。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, a flexible container 1 is a container containing food or non-food such as kneaded, kneaded wasabi, toothpaste, etc., and the contents are obtained by crushing the flexible part of the container. It can be extruded from the opening.

この可撓性容器１は、胴部１Ａと、胴部１Ａより細い口頸部（或いは首部）１Ｃと、胴部１Ａと口頸部１Ｃとの間の肩部１Ｂとを有している。ここでの胴部１Ａと肩部１Ｂが容器の可撓性部分であり、口頸部１Ｃは先端開口１０の形状を維持するために比較的硬質に形成された部分である。このような可撓性容器１は、胴部１Ａ又は肩部１Ｂを押し潰すことで先端開口１０から内容物を押し出すことができる。   This flexible container 1 has a trunk portion 1A, a mouth and neck portion (or neck portion) 1C thinner than the trunk portion 1A, and a shoulder portion 1B between the trunk portion 1A and the mouth neck portion 1C. The trunk portion 1A and the shoulder portion 1B here are flexible portions of the container, and the mouth-and-neck portion 1C is a portion that is formed relatively rigid in order to maintain the shape of the tip opening 10. Such a flexible container 1 can extrude the contents from the tip opening 10 by crushing the trunk 1A or the shoulder 1B.

可撓性容器１の肩部１Ｂは、口頸部１Ｃの中心軸である軸Ｏの方向に沿った高さＢが胴部１Ａの径Ａに対して０．５Ａ〜０．７Ａの範囲になっている。ここでの胴部１Ａの径Ａは、肩部１Ｂに繋がる部分の径であって、胴部１Ａ自体は全体的に同一の径を有するものであっても、径が長手方向（軸Ｏの方向）に沿って変化するものであってもよい。   The shoulder portion 1B of the flexible container 1 has a height B in the range of 0.5A to 0.7A with respect to the diameter A of the trunk portion 1A along the direction of the axis O, which is the central axis of the mouth-and-neck portion 1C. It has become. Here, the diameter A of the trunk portion 1A is a diameter of a portion connected to the shoulder portion 1B. Even if the trunk portion 1A itself has the same diameter as a whole, the diameter is the longitudinal direction (of the axis O). (Direction) may be changed.

また、可撓性容器１の肩部１Ｂは、胴部１Ａから口頸部１Ｃに向かって曲率半径Ｃが胴部１Ａの径Ａに対して０．９Ａ〜１．２Ａの連続曲面を有しており、その上端径Ｄが胴部１Ａの径Ａに対して０．５Ａ〜０．７Ａとなるドーム形状部２０を有している。このように肩部１Ｂは胴部１Ａからの連続曲面によって構成され、そこに形成されるドーム形状部２０の曲率半径Ｃが０．９Ａ〜１．２Ａになる。ここでの肩部１Ｂの上端径Ｄは必ずしも口頸部１Ｃの径と一致する必要は無い。   The shoulder 1B of the flexible container 1 has a continuous curved surface with a radius of curvature C of 0.9A to 1.2A with respect to the diameter A of the trunk 1A from the trunk 1A toward the mouth neck 1C. And has a dome-shaped portion 20 whose upper end diameter D is 0.5A to 0.7A with respect to the diameter A of the body portion 1A. Thus, the shoulder portion 1B is constituted by a continuous curved surface from the body portion 1A, and the radius of curvature C of the dome-shaped portion 20 formed therein is 0.9A to 1.2A. Here, the upper end diameter D of the shoulder portion 1B does not necessarily need to coincide with the diameter of the mouth-and-neck portion 1C.

このような可撓性容器１は、ポリエチレン、ポリプロピレンなどのポリオレフィン系樹脂や、ポリアミド（ナイロン）系樹脂、或いは、ポリエチレンテレフタレートやポリエチレンナフタレートなどの熱可塑性ポリエスエル系樹脂などの熱可塑性樹脂を材料として、ブロー成形法などの成形方法によって形成することができる。   Such a flexible container 1 is made of a thermoplastic resin such as a polyolefin resin such as polyethylene or polypropylene, a polyamide (nylon) resin, or a thermoplastic polyester resin such as polyethylene terephthalate or polyethylene naphthalate. It can be formed by a molding method such as a blow molding method.

このように、胴部１Ａの径Ａに対して設定された寸法に形成された肩部１Ｂを有する可撓性容器１は、押し潰しやすいドーム形状部２０を有する肩部１Ｂを備えることで、肩部１Ｂを簡易に押し潰して肩部１Ｂの内側に残された内容物を容易に先端開口１０から押し出すことができ、押し潰した肩部１Ｂは押し潰した状態を容易に保つことができる。また、肩部１Ｂは胴部１Ａからリング状の肩部溝を介さずに、直接、連続曲面へ繋がっているので、押し潰した状態を容易に保つことができるが、手指の力で簡単に元の形に復元可能となっている。   Thus, the flexible container 1 having the shoulder portion 1B formed in the dimension set with respect to the diameter A of the trunk portion 1A includes the shoulder portion 1B having the dome-shaped portion 20 that is easily crushed. The shoulder portion 1B can be easily crushed and the contents left inside the shoulder portion 1B can be easily pushed out from the tip opening 10, and the crushed shoulder portion 1B can easily keep the crushed state. . In addition, the shoulder 1B is directly connected to the continuous curved surface from the trunk 1A without going through the ring-shaped shoulder groove, so that the crushed state can be easily maintained. It can be restored to its original form.

このような可撓性容器１は、肩部１Ｂを押し潰して内容物を先端開口１０から押し出した後に押し潰した状態を容易に保つことができるため、肩部１Ｂに加えた力を弱めた場合でも容器内に空気が入り込むのを抑制することができる。これによって、次に肩部１Ｂなどを押して内容物を先端開口１０から押し出す際に、直ぐに内容物を押し出すことができ、空気と一緒に内容物が飛び出て使用者の意に反した出かたになるなどの不都合がなく、安定した状態で確実に内容物を押し出すことができる。   Such a flexible container 1 can easily maintain the state of being crushed after the shoulder 1B is crushed and the contents are pushed out from the tip opening 10, so that the force applied to the shoulder 1B is weakened. Even in this case, air can be prevented from entering the container. As a result, when the contents are pushed out from the tip opening 10 by pressing the shoulder 1B or the like next time, the contents can be pushed out immediately, and the contents jump out together with the air and come out against the user's will. The contents can be reliably pushed out in a stable state.

また、可撓性容器１は、肩部１Ｂにおけるドーム形状部２０に、軸Ｏ方向に延設され外側に向かって盛り上がる肩リブ２１を複数備えている。そのため、肩部１Ｂを押し潰す際に、肩リブ２１に沿った折り目が生じて押し潰す力を軽減することができるとともに、押し潰した肩部１Ｂを元の形に復元する際には、手指の力を加えるだけで、より簡単に元の形に復元することができる。また、複数の肩リブ２１は、１８０°位置にある一対の肩リブ２１Ａが他の肩リブ２１Ｂに対して長く形成されている。このように複数設けた肩リブ２１の中で他の肩リブ２１Ｂより長い肩リブ２１Ａを設定された位置に設けることで、可撓性容器１の方向決めを行うことが可能になる。   In addition, the flexible container 1 includes a plurality of shoulder ribs 21 that extend in the direction of the axis O and bulge outward toward the dome-shaped portion 20 in the shoulder portion 1B. Therefore, when the shoulder portion 1B is crushed, a crease along the shoulder rib 21 is generated and the crushing force can be reduced. When the crushed shoulder portion 1B is restored to the original shape, By simply applying the power of, it can be restored to its original shape more easily. The plurality of shoulder ribs 21 are formed such that a pair of shoulder ribs 21A at 180 ° positions are longer than the other shoulder ribs 21B. By providing the shoulder rib 21A longer than the other shoulder ribs 21B among the plurality of shoulder ribs 21 thus provided, the flexible container 1 can be oriented.

具体的には、可撓性容器１の外周面に印刷を施す際に、その印刷絵柄・文字などの位置決めを長めの肩リブ２１Ａを基準に行うことができる。そして、印刷の正面を長めの肩リブ２１Ａの配置と直交する方向に向けて設定すると、使用者に印刷の正面を押し潰すように誘導することができ、この押し潰す方向と直交する位置に長めの肩リブ２１Ａが一対配置されることで、肩部１Ｂを押し潰す際に長めの肩リブ２１Ａに沿った折り目が生じて押し潰す力をさらに軽減し、使いやすくすることができる。   Specifically, when printing is performed on the outer peripheral surface of the flexible container 1, the printed pattern / characters can be positioned with reference to the longer shoulder rib 21A. If the front side of the printing is set in a direction orthogonal to the arrangement of the long shoulder ribs 21A, the user can be guided to crush the front side of the printing, and the length is increased to a position orthogonal to the crushing direction. By arranging a pair of shoulder ribs 21A, when the shoulder portion 1B is crushed, a crease along the longer shoulder rib 21A is generated, and the crushing force is further reduced, making it easier to use.

可撓性容器１の口頸部１Ｃには、例えば図のような４条のねじ部１１を設けることができ、その下方には突状リブ１２を設けることができる。ねじ部１１は、口頸部１Ｃにキャップ（蓋）をねじ込み装着するために設けられ、突状リブ１２は、キャップ（蓋）が閉まった感触（クリック感）を使用者に感じさせるため或いはキャップの回転止めのために設けられる。ここでは、肩部１Ｂを押し潰しやすくするために、突状リブ１２を肩部１Ｂではなくて口頸部１Ｃに設けている。   The neck portion 1C of the flexible container 1 can be provided with, for example, four threaded portions 11 as shown in the figure, and can be provided with protruding ribs 12 below. The screw portion 11 is provided for screwing and attaching a cap (lid) to the mouth-and-neck portion 1C, and the projecting rib 12 is used to make the user feel the touch (click feeling) that the cap (lid) is closed or the cap. Is provided to prevent rotation. Here, in order to easily crush the shoulder portion 1B, the protruding ribs 12 are provided not on the shoulder portion 1B but on the mouth and neck portion 1C.

図２を用いて、キャップ２と可撓性容器１の嵌め合わせについて説明する。可撓性容器１の口頸部１Ｃに装着されるキャップ２は、内筒壁２Ａ、天壁２Ｂ、外筒壁２Ｃを備えている。キャップ２の内筒壁２Ａは、可撓性容器１の口頸部１Ｃに設けられるねじ部（雄ねじ部）１１にねじ込み装着することができるようにその内周面に４条のねじ部（雌ねじ部）３０を備えている。また、内筒壁２Ａの内周面には、可撓性容器１の口頸部１Ｃの外周面に設けられる突状シール部１３に密着するシール面３１が形成されている。   The fitting of the cap 2 and the flexible container 1 will be described with reference to FIG. A cap 2 attached to the neck 1C of the flexible container 1 includes an inner cylinder wall 2A, a top wall 2B, and an outer cylinder wall 2C. The inner cylindrical wall 2A of the cap 2 has four threaded portions (female threads) on its inner peripheral surface so that it can be screwed into a threaded portion (male threaded portion) 11 provided on the neck 1C of the flexible container 1. Part) 30. In addition, a seal surface 31 is formed on the inner peripheral surface of the inner cylindrical wall 2A so as to be in close contact with the projecting seal portion 13 provided on the outer peripheral surface of the neck 1C of the flexible container 1.

キャップ２の天壁２Ｂは、内筒壁２Ａの上方を覆うものであり、その内面にシール突部３２が設けられる。キャップ２が口頸部１Ｃにねじ込まれた状態では、天壁２Ｂ内面に設けられるシール突部３２が口頸部１Ｃの先端面１４に密着することになり、加えて口頸部１Ｃの突状シール部１３が内筒壁２Ａ内面のシール面３１に密着することになる。   The top wall 2B of the cap 2 covers the upper part of the inner cylindrical wall 2A, and a seal projection 32 is provided on the inner surface thereof. In a state where the cap 2 is screwed into the mouth-and-neck portion 1C, the seal projection 32 provided on the inner surface of the top wall 2B comes into close contact with the distal end surface 14 of the mouth-and-neck portion 1C, and in addition, the projecting shape of the mouth-and-neck portion 1C. The seal portion 13 comes into close contact with the seal surface 31 on the inner surface of the inner cylindrical wall 2A.

キャップ２の外筒壁２Ｃは、内筒壁２Ａの外側を覆うように設けられ、内筒壁２Ａの下端より下方に延びてキャップ２の開口下端部３３を形成する。図のように、キャップ２を可撓性容器１の口頸部１Ｃに嵌め合わせた際（ねじ込む前）には、キャップ２の開口下端部３３は可撓性容器１の肩部１Ｂの軸方向高さＢの範囲内に位置し、キャップ２を可撓性容器１の口頸部１Ｃにねじ込んだ状態では、キャップ２の外筒壁２Ｃが可撓性容器１の肩部１Ｂの一部又は全体を覆うように装着される。   The outer cylindrical wall 2C of the cap 2 is provided so as to cover the outer side of the inner cylindrical wall 2A, and extends downward from the lower end of the inner cylindrical wall 2A to form an opening lower end portion 33 of the cap 2. As shown in the figure, when the cap 2 is fitted to the mouth-and-neck portion 1C of the flexible container 1 (before screwing), the opening lower end portion 33 of the cap 2 is in the axial direction of the shoulder portion 1B of the flexible container 1. When the cap 2 is screwed into the mouth-and-neck portion 1C of the flexible container 1 and is located within the height B, the outer cylindrical wall 2C of the cap 2 is a part of the shoulder 1B of the flexible container 1 or It is mounted so as to cover the whole.

ここで、キャップ２を口頸部１Ｃに嵌め合わせた際に、可撓性容器１における肩部１Ｂの外周とキャップ２の開口下端部３３との片側隙間Ｅがキャップ２の開口下端部３３の径Ｆに対して０．０４Ｆ以上になるように設定している。このように、肩部１Ｂの外周とキャップ２の開口下端部３３との間の隙間を設定することで、可撓性容器１の肩部１Ｂを押し潰して肩部１Ｂの幅が横方向に拡がった状態のままキャップ２を可撓性容器１に嵌め合わせても、キャップ２の開口下端部３３が可撓性容器１の肩部１Ｂに干渉しにくくなる。これによって、可撓性容器１の肩部１Ｂを押し潰した状態を維持して、容器内への空気の入り込みを抑止しながら、キャップ２を口頸部１Ｃにねじ込んで先端開口１０を密封することができる。このような可撓性容器１とキャップ２によると、内容物を押し出した後に可撓性容器１に空気が入り込むのを極力抑えることができる。   Here, when the cap 2 is fitted to the mouth-and-neck portion 1C, the one-side gap E between the outer periphery of the shoulder portion 1B of the flexible container 1 and the opening lower end portion 33 of the cap 2 is It is set to be 0.04F or more with respect to the diameter F. In this way, by setting a gap between the outer periphery of the shoulder 1B and the opening lower end 33 of the cap 2, the shoulder 1B of the flexible container 1 is crushed so that the width of the shoulder 1B is in the lateral direction. Even if the cap 2 is fitted to the flexible container 1 in the expanded state, the opening lower end portion 33 of the cap 2 does not easily interfere with the shoulder portion 1B of the flexible container 1. As a result, the state in which the shoulder portion 1B of the flexible container 1 is crushed is maintained, and the cap 2 is screwed into the mouth-and-neck portion 1C while preventing the air from entering the container, and the tip opening 10 is sealed. be able to. According to such a flexible container 1 and the cap 2, it is possible to suppress air from entering the flexible container 1 as much as possible after the contents are pushed out.

図３を用いて、キャップの具体例について説明する。前述した説明と重複する部位には同一符号を付して重複説明を省略する。キャップ２は、内筒壁２Ａの下端に複数の下向き突出部３４を備えている。下向き突出部３４は、可撓性容器１における複数の突状リブ１２間の間隔に対応して周方向に沿って間隔を空けて複数設けられている。下向き突出部３４は、その内面から内向きに突出した係合突起３４Ａを備えており、この係合突起３４Ａが口頸部１Ｃへのねじ込み終了時に突状リブ１２間に係合する（図４（ｂ）参照）。また、下向き突出部３４は、キャップ２のねじ込み回転方向下流側に延設されて壁高さが漸減する横壁３４Ｂを備えている。   A specific example of the cap will be described with reference to FIG. Portions that overlap with the above description are given the same reference numerals and redundant description is omitted. The cap 2 includes a plurality of downward projecting portions 34 at the lower end of the inner cylindrical wall 2A. A plurality of downward projecting portions 34 are provided at intervals along the circumferential direction corresponding to the intervals between the plurality of protruding ribs 12 in the flexible container 1. The downward projecting portion 34 includes an engaging projection 34A projecting inward from the inner surface thereof, and the engaging projection 34A engages between the projecting ribs 12 when the screwing into the mouth-and-neck portion 1C is completed (FIG. 4). (See (b)). The downward projecting portion 34 includes a lateral wall 34B that extends downstream in the screwing rotation direction of the cap 2 and has a wall height that gradually decreases.

このようなキャップ２は、通常の熱可塑性樹脂を用いて形成することができ、例えば、ポリエチレン、ポリプロピレンなどのポリオレフィン系樹脂、ポリエチレンテレフタレートなどのポリエステル系樹脂、ナイロンなどのポリアミド系樹脂などを用いることができ、通常の射出成形法などで成形することができる。   Such a cap 2 can be formed using a normal thermoplastic resin. For example, a polyolefin resin such as polyethylene or polypropylene, a polyester resin such as polyethylene terephthalate, or a polyamide resin such as nylon may be used. It can be formed by a normal injection molding method or the like.

図４を用いて、可撓性容器１における突状リブ１２とキャップ２における下向き突出部３４の機能を説明する。図４は、キャップ２を可撓性容器１の口頸部１Ｃにねじ込んで下向き突出部３４の係合突起３４Ａが可撓性容器１の突状リブ１２間に係合した状態を示した水平断面図である。   The function of the protruding rib 12 in the flexible container 1 and the downward projecting portion 34 in the cap 2 will be described with reference to FIG. FIG. 4 is a horizontal view showing a state in which the cap 2 is screwed into the mouth-and-neck portion 1 </ b> C of the flexible container 1 and the engagement protrusion 34 </ b> A of the downward protrusion 34 is engaged between the protruding ribs 12 of the flexible container 1. It is sectional drawing.

キャップ２を可撓性容器１の口頸部１Ｃに嵌め合わせた状態でねじ込むと、下向き突出部３４の係合突起３４Ａは軸Ｏの周りに回転しながら下降して、口頸部１Ｃの下部に設けた突状リブ１２を斜め下向きに乗り越えて、ねじ込み終了時に突状リブ１２間の間隔１２Ｆ内に係合する。図４（ａ）はその係合直後の状態を示している。このように内向きに突出した係合突起３４Ａが突状リブ１２を乗り越えて間隔１２Ｆ内に落ち込む際に使用者はキャップ２が閉まった感触（クリック感）を得ることができる。   When the cap 2 is screwed in a state in which the cap 2 is fitted to the mouth / neck portion 1C of the flexible container 1, the engaging projection 34A of the downward projecting portion 34 descends while rotating around the axis O, and the lower portion of the mouth / neck portion 1C The protruding ribs 12 provided on the upper side of the protruding rib 12 are moved obliquely downward and engaged in a space 12F between the protruding ribs 12 at the end of screwing. FIG. 4A shows a state immediately after the engagement. Thus, when the engaging protrusion 34A protruding inwardly moves over the protruding rib 12 and falls into the interval 12F, the user can obtain a feeling (click feeling) that the cap 2 is closed.

ここで、突状リブ１２間の間隔１２Ｆは係合突起３４Ａの幅に対して広く形成されており、係合突起３４Ａが間隔１２Ｆ内に係合してからもキャップ２に若干の回転を許容している。その僅かな回転後に係合突起３４Ａの当接面３４Ａ１が突状リブ１２の周方向端面１２Ａに当接することでキャップ２の回転が止められる（図４（ｂ）参照）。   Here, the interval 12F between the projecting ribs 12 is formed wider than the width of the engaging protrusion 34A, and even after the engaging protrusion 34A is engaged in the interval 12F, the cap 2 is allowed to slightly rotate. doing. After the slight rotation, the contact surface 34A1 of the engagement protrusion 34A contacts the circumferential end surface 12A of the projecting rib 12 to stop the rotation of the cap 2 (see FIG. 4B).

このように、可撓性容器１側に周方向に間隔１２Ｆを空けて突状リブ１２を設けて、キャップ２側にその間隔１２Ｆに対応した下向き突出部３４を設け、この下向き突出部３４の内面に係合突起３４Ａを設けることで、キャップ２が閉まった感触を使用者に感じさせることができ、キャップ２の係合突起３４Ａが突状リブ１２間に係合することでキャップ２の緩み止めが可能になる。また、キャップ２のねじ込み終了時に突状リブ１２間に係合した係合突起３４Ａが突状リブ１２の周方向端面１２Ａに当接することでキャップ２の回転止めになり、キャップ２が過剰に回転されるのを抑止することができる。   As described above, the protruding rib 12 is provided on the flexible container 1 side with a gap 12F in the circumferential direction, and the downward projecting portion 34 corresponding to the spacing 12F is provided on the cap 2 side. By providing the engagement protrusion 34A on the inner surface, it is possible to make the user feel a feeling that the cap 2 is closed, and the engagement protrusion 34A of the cap 2 is engaged between the protruding ribs 12 to loosen the cap 2. It can be stopped. Further, when the engagement protrusion 34A engaged between the projecting ribs 12 is brought into contact with the circumferential end surface 12A of the projecting rib 12 at the end of screwing of the cap 2, the cap 2 is prevented from rotating, and the cap 2 rotates excessively. Can be suppressed.

そして、可撓性容器１の肩部１Ｂを押し潰して内容物を押し出した状態を維持してキャップ２を口頸部１Ｃにねじ込む際にも、押し潰しによって横に拡がった肩部１Ｂに干渉することなく、キャップ２をねじ込んでキャップ２の係合突起３４Ａを可撓性容器１における突状リブ１２間の間隔１２Ｆに係合させることができる。このように係合突起３４Ａが間隔１２Ｆに係合した状態では、キャップ２の天壁２Ｂにおけるシール突部３２が口頸部１Ｃの先端面１４に密着することになり、口頸部１Ｃの突状シール部１３がキャップ２の内筒壁２Ａ内面のシール面３１に密着することになるので、空気の入り込みを極力抑制してキャップ２を閉めることができる。なお、下向き突出部３４に設けられる横壁３４Ｂは、口頸部１Ｃの先端開口１０にアルミシール材などのフィルム状シール材を貼り付けた状態で口頸部１Ｃにキャップ２をねじ込む際に、貼り付けたフィルム状シール材を引き剥がすこと無くキャップ２の装着を可能にするために設けている。   Further, when the cap 2 is screwed into the mouth neck 1C while the shoulder 1B of the flexible container 1 is crushed and the contents are pushed out, the shoulder 1B that has spread laterally by the crushing is interfered. Without this, the cap 2 can be screwed and the engagement protrusion 34A of the cap 2 can be engaged with the interval 12F between the protruding ribs 12 in the flexible container 1. Thus, in the state in which the engaging protrusion 34A is engaged with the interval 12F, the seal protrusion 32 on the top wall 2B of the cap 2 comes into close contact with the distal end surface 14 of the mouth neck 1C, and the protrusion of the mouth neck 1C. Since the cylindrical seal portion 13 is in close contact with the seal surface 31 on the inner surface of the inner cylindrical wall 2A of the cap 2, the cap 2 can be closed while suppressing the entry of air as much as possible. The horizontal wall 34B provided on the downward projecting portion 34 is attached when the cap 2 is screwed into the mouth / neck portion 1C with a film-like sealing material such as an aluminum seal material attached to the tip opening 10 of the mouth / neck portion 1C. It is provided to enable the cap 2 to be mounted without peeling off the attached film-like sealing material.

以上説明したように、本発明の実施形態に係る可撓性容器１は、胴部１Ａと口頸部１Ｃとの間の肩部１Ｂにおいて、設定寸法の曲率半径Ｃの連続曲面を有するドーム形状部２０を有することで、肩部１Ｂを押し潰しやすくすると共に押し潰した状態を保つことができ、容器内への空気の入り込みを抑制することができる。また、口頸部１Ｃの先端開口１０を塞ぐキャップ２の開口下端部３３の径Ｆと肩部１Ｂの外周との寸法関係を適宜に設定することで、肩部１Ｂを押し潰した状態で先端開口１０を密封することができるようになり、空気の入り込みによる再押し出し時の空気を伴った内容物の不意な飛び出しを抑止するだけでなく、入り込んだ空気による内容物の変質を効果的に抑止することができる。   As described above, the flexible container 1 according to the embodiment of the present invention has a dome shape having a continuous curved surface with a radius of curvature C of a set dimension in the shoulder portion 1B between the trunk portion 1A and the mouth neck portion 1C. By having the portion 20, the shoulder portion 1B can be easily crushed and the crushed state can be maintained, and the entry of air into the container can be suppressed. In addition, by appropriately setting the dimensional relationship between the diameter F of the opening lower end 33 of the cap 2 that closes the tip opening 10 of the neck 1C and the outer periphery of the shoulder 1B, the tip in a state where the shoulder 1B is crushed. It becomes possible to seal the opening 10 and not only prevent the contents from being suddenly ejected with the air when re-extruding due to the ingress of air, but also effectively prevent the contents from being altered by the intruding air. can do.

１：可撓性容器，１Ａ：胴部，１Ｂ：肩部，１Ｃ：口頸部，
１０：先端開口，１１：ねじ部（雄ねじ部），１２：突状リブ，
１２Ａ：周方向端面，１２Ｆ：間隔，１３：突状シール部，１４：先端面，
２０：ドーム形状部，２１，２１Ａ，２１Ｂ：肩リブ，
２：キャップ，２Ａ：内筒壁，２Ｂ：天壁，２Ｃ：外筒壁，
３０：ねじ部（雌ねじ部），３１：シール面，３２：シール突部，
３３：開口下端部，３４：下向き突出部，３４Ａ：係合突起，
３４Ａ１：当接面，３４Ｂ：横壁，Ｏ：軸 1: flexible container, 1A: trunk, 1B: shoulder, 1C: mouth and neck,
10: tip opening, 11: threaded portion (male threaded portion), 12: protruding rib,
12A: circumferential end surface, 12F: interval, 13: protruding seal portion, 14: tip surface,
20: Dome shape part, 21, 21A, 21B: Shoulder rib,
2: cap, 2A: inner cylinder wall, 2B: top wall, 2C: outer cylinder wall,
30: Screw part (female screw part), 31: Seal surface, 32: Seal protrusion
33: Opening lower end portion, 34: downward projecting portion, 34A: engaging projection,
34A1: Abutting surface, 34B: Horizontal wall, O: Shaft

Claims (3)

胴部と、該胴部より細い口頸部と、前記胴部と前記口頸部との間の肩部とを有し、前記口頸部の先端開口から内容物を押し出す可撓性容器及びキャップからなるキャップ付き容器であって、
前記肩部は、軸方向高さが前記胴部の径の０．５〜０．７倍の範囲であり、前記胴部から前記口頸部に向かって曲率半径が前記胴部の径の０．９〜１．２倍の連続曲面を有し、その上端径が前記胴部の径の０．５〜０．７倍となるドーム形状部を有し、
前記キャップを前記口頸部に嵌め合わせた際に、前記キャップの開口下端部は前記肩部の軸方向高さの範囲内に位置し、
前記肩部の外周と前記キャップの開口下端部との片側隙間が前記キャップの開口下端部の径に対して０．０４倍以上になることを特徴とするキャップ付き容器。 And the body, and thin neck from body portion, and a shoulder portion between said port neck and the body portion, the flexible container pushes the contents from the distal end opening of the port neck and A container with a cap comprising a cap,
The shoulder portion has an axial height in a range of 0.5 to 0.7 times a diameter of the trunk portion, and a radius of curvature from the trunk portion toward the mouth neck portion is 0 of the diameter of the trunk portion. It has .9～1.2-fold serial curved surface, have a dome-shaped portion at the upper end diameter is 0.5 to 0.7 times the diameter of said barrel portion,
When the cap is fitted to the mouth and neck, the lower end of the opening of the cap is located within the range of the axial height of the shoulder,
A container with a cap, wherein a gap on one side between the outer periphery of the shoulder and the lower end of the cap is 0.04 times or more the diameter of the lower end of the cap. 前記ドーム形状部に、軸方向に延設され外側に向かって盛り上がる肩リブを複数備えたことを特徴とする請求項１記載のキャップ付き容器。 The container with a cap according to claim 1, wherein the dome-shaped portion includes a plurality of shoulder ribs extending in the axial direction and rising outward . 複数の前記肩リブは、１８０°位置にある一対の肩リブが他の肩リブに対して長いことを特徴とする請求項１又は２記載のキャップ付き容器。 The container with a cap according to claim 1 or 2, wherein a plurality of the shoulder ribs are such that a pair of shoulder ribs at 180 ° positions are longer than other shoulder ribs .
JP2014133361A 2014-06-27 2014-06-27 Container with cap Active JP6345509B2 (en)

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