JP3608357B2

JP3608357B2 - Pouch with opening maintaining member

Info

Publication number: JP3608357B2
Application number: JP32325997A
Authority: JP
Inventors: 利幸鈴木; 達雄古瀬
Original assignee: Toppan Inc
Current assignee: Toppan Inc
Priority date: 1997-11-25
Filing date: 1997-11-25
Publication date: 2005-01-12
Anticipated expiration: 2017-11-25
Also published as: JPH11152154A

Description

【０００１】
【発明の属する技術分野】
本発明は、液体洗剤、トイレタリー、果汁飲料及び調味料などの詰替え用パウチに関するもので、詳しくは、内容物を注出し易い開口維持部材付パウチに関するものである。
【０００２】
【従来の技術】
近年、環境保全や省資源の立場から、各種の液体内容物に詰替え用容器が広く使用されるようになってきた。この詰替え用容器としては、使用時に注出口部の先端を切断して開口し、内容物を注出する合成樹脂フィルムからなる柔軟な注出口部付パウチがあるが、他の容器へ内容物を詰め替えるときに、注出口部の内容物の注出のし易さを改善するために、例えば、特開平８−２５３８号公報に記載されいる注出口部の注出孔を中空円筒状又は中空半円筒状に成形したものや、特開平９−２４９５６号公報に記載されている注出口部の注出孔に半硬質ないし硬質パイプを埋没したものなどが知られていた。
【０００３】
【発明が解決しようとする課題】
しかしながら、上述した従来の内容物の注出性を改善した注出口部付パウチは、内容物を充填する前に、パウチ本体は平坦であるが注出口部が立体構造になっているため、流通及び保管時の集積効率が悪く、また、内容物充填時に、充填機内でのパウチの搬送上のトラブルが発生し易く、このため、特殊な搬送装置などを必要とすることがあった。
【０００４】
本発明は、上述の従来の注出口部付パウチの問題を解決したものであり、注出口部が平坦で流通及び保管時の集積効率が良く、内容物充填機上でのパウチの搬送上のトラブルがなく、内容物注出時には、ワンタッチで注出口部の注出孔を注出し易い立体構造にできる開口維持部材付パウチを提供するものである。
【０００５】
【課題を解決するための手段】
すなわち、本発明の第１の発明は、図１（ａ）に示すように、使用時に先端を切断して注出孔（１１１）を開口する注出口部（１１０）をもち、表裏の合成樹脂フィルムの周縁部をシールしてなる柔軟なパウチ（１００）において、図１（ｂ）に示すように、四角形状の中央板（２１０）の両側に、四角形状の側板（２２０ａ，２２０ｂ）をヒンジ（２０１ａ，２０１ｂ）を介してそれぞれ連設し、前記２本のヒンジのそれぞれに、１個以上の四角形状の切欠き（２０３）を跨がらせて設け、前記切欠きのそれぞれの両側に対応する中央板の端縁部と側板の端縁部に、前記両側の側板を前記ヒンジを介して折り曲げたときに、係合し合う係合爪（２１１と２２１）をそれぞれに対応させて設けた平板状で剛性をもつ合成樹脂製の開口維持部材（２００）を、図１（ａ）に示すように、前記注出口部（１１０）の注出孔（１１１）に挿着したことを特徴とする開口維持部材付パウチ（１０）である。
【０００６】
次に、本発明の第２の発明は、図５（ａ）に示すように、使用時に先端を切断して注出孔（１１１）を開口する注出口部（１１０）をもち、表裏の合成樹脂フィルムの周縁部をシールしてなる柔軟なパウチ（１００）において、図５（ｂ）に示すように、四角形状の中央板（２１０）の両側に、四角形状の側板（２２０ａ，２２０ｂ）をヒンジ（２０１ａ，２０１ｂ）を介してそれぞれ連設し、前記２本のヒンジのそれぞれに、１個以上の四角形状の切欠き（２０３）を跨がらせて設け、前記切欠きのそれぞれの中央板の端縁部に、前記両側の側板を前記ヒンジを介して折り曲げたときに、対応する側板の切欠きの断面（２２２）と係合する係合突起（２１２）を設けた平板状で剛性をもつ合成樹脂製の開口維持部材（２００）を、図５（ａ）に示すように、前記注出口部（１１０）の注出孔（１１１）に挿着したことを特徴とする開口維持部材付パウチ（１０）である。
【０００７】
次に、本発明の第３の発明は、図４又は図８に示すように、前記注出口部の注出孔に挿着する開口維持部材（２００）の両側の側板（２２０ａ，２２０ｂ）の外側の側辺（２２３ａ，２２３ｂ）が、注出方向へ先細りの傾斜をもつことを特徴とする第１の発明又は第２に記載の開口維持部材付パウチである。
【０００８】
【作用】
本発明の開口維持部材付パウチは、内容物が充填されるまでは、開口維持部材を挿着する注出口部もパウチ本体と同様に比較的に平坦であるため、流通及び保管時の集積効率が良く、また、内容物充填機上でのパウチの搬送上のトラブルがなく、搬送のための特殊な装置を必要としない。
【０００９】
また、本発明の開口維持部材付パウチの注出口部に挿着された開口維持部材には、パウチの外側から指で折り曲げるためのヒンジが設けられており、また、形成された立体構造を維持するための係合爪や係合突起などが設けられており、内容物の注出するときに、立体構造になった剛性をもつ合成樹脂製の開口維持部材が、柔軟な合成樹脂フィルムから形成される注出口部を内側から筒状の開口状態に維持して内容物の流路を確保するため、パウチの注出口部からの内容物の注出が良好となる。
【００１０】
また、注出口部の注出孔に挿着する開口維持部材の両側の側板の外側の側辺が注出方向へ先細りの傾斜をもつ本発明の開口維持部材付パウチは、パウチの注出口部の先端を細くすることができるため、狭い注入口のもつ容器へ内容物を移し替えるときに、内容物の注入がし易くなる。
【００１１】
【発明の実施の形態】
本発明の開口維持部材付パウチは、使用時に先端を切断して注出孔を開口する注出口部をもち、表裏の合成樹脂フィルムの周縁部をシールしてなる柔軟なパウチの注出口部の注出孔に、折り曲げ可能で平板状で適度の剛性をもつ開口維持部材を挿着し、内容物の注出時に、開口維持部材を折り曲げて係合して立体構造にするものである。この開口維持部材は、使用目的に適応した剛性をもつポリエチレン、ポリプロピレンなどの熱可塑性樹脂を用いて、射出成形法により作製するものであり、パウチの注出口部の内面に、部分的に接着剤で接着するか又は熱融着して、パウチの注出口部内に挿着するものである。
【００１２】
そして、上述のパウチは、通常では、延伸ポリエステルフィルム層／ポリエチレン層構成、延伸ポリエステルフィルム層／無延伸ポリプロピレンフィルム層構成、ナイロンフィルム層／ポリエチレン層構成、ナイロンフィルム層／無延伸ポリプロピレンフィルム層構成、ナイロンフィルム層／アルミニウム箔層／ポリエチレン層構成、ナイロンフィルム層／アルミニウム箔層／無延伸ポリプロピレンフィルム層構成、延伸ポリエステルフィルム層／延伸ナイロンフィルム層／ポリエチレン層構成、延伸ポリエステルフィルム層／延伸ナイロンフィルム層／無延伸ポリプロピレンフィルム層構成などの積層フィルムを表裏重ね合わせて、その周縁部に、図１（ａ）又は図５（ａ）に示すように、ヒートシール法などの熱融着法によりシール部（１０１）を設けて作製するものである。使用目的によっては、単層フィルムを使用してもよい。なお、注出口部（１１０）には、通常、開封のためのノッチ（１１１）を形成するものであり、パウチの形態は、通常周知の自立しない平パウチでも、底部に底部材を設けて自立するスタンディングパウチでもよい。
【００１３】
本発明の一実施形態の開口維持部材付パウチ（１０）は、例えば、図１（ａ）に示すパウチ（１００）の注出口部（１１０）の注出孔（１１１）に、図１（ｂ）に示すように、四角形状の中央板（２１０）の両側に、四角形状の側板（２２０ａ，２２０ｂ）をヒンジ（２０１ａ，２０１ｂ）を介してそれぞれ連設し、これら２本のヒンジのそれぞれに、１個以上（図では、２個ずつ）の四角形状の切欠き（２０３）を跨がらせて設け、これらの切欠きのそれぞれの左右両側に対応する中央板の端縁部と側板の端縁部に、両側の側板をヒンジを介して折り曲げたときに、係合し合う係合爪（２１１と２２１）をそれぞれに対応させて設けた平板状で剛性をもつ合成樹脂製の開口維持部材（２００）を、図２に示すように、注出口部（１１０）の内面に、中央板（２１０）の下面を、通常では熱融着して挿着して作製するものである。そして、内容物を注出するときに、注出口部の先端を切断して注出孔を開口し、図３に示すように、開口維持部材（２００）のヒンジ（２０１）をパウチ（１００）の外側から指で押圧して、両側の側板（２２０）を中央板（２１０）に対してほぼ直角に内側へ折り曲げ、切欠きの中央板の端縁部の係合爪（２１１）と側板の端縁部の係合爪（２２１）とを係合させると、平板状だった開口維持部材（２００）がワンタッチで立体構造となり、パウチ（１００）の注出口部（１００）の注出孔が開口した状態に維持されて内容物の流路（１１２）が確保されるものである。
【００１４】
次に、本発明の他の一実施形態の開口維持部材付パウチ（１０）は、例えば、図５（ａ）に示すパウチ（１００）の注出口部（１１０）の注出孔（１１１）に、図５（ｂ）に示すように、四角形状の中央板（２１０）の両側に、四角形状の側板（２２０ａ，２２０ｂ）をヒンジ（２０１ａ，２０１ｂ）を介してそれぞれ連設し、これら２本のヒンジのそれぞれに、１個以上（図では、２個ずつ）の四角形状の切欠き（２０３）を跨がらせて設け、これら切欠きのそれぞれの中央板の端縁部に、両側の側板をヒンジを介して折り曲げたときに、対応する側板の切欠きの断面（２２２）と係合する係合突起（２１２）を設けた平板状で剛性をもつ合成樹脂製の開口維持部材（２００）を、図６に示すように、注出口部（１１０）の内面に、中央板（２１０）の下面を、通常では熱融着して挿着して作製するものである。そして、内容物を注出するときに、注出口部の先端を切断して注出孔を開口し、図７に示すように、開口維持部材（２００）のヒンジ（２０１）をパウチ（１００）の外側から指で押圧して、両側の側板（２２０）を中央板（２１０）に対してほぼ直角に内側へ折り曲げ、切欠きの中央板の端縁部の係合突起（２１２）と側板の切欠きの断面（２２２）とを係合させると、平板状だった開口維持部材（２００）がワンタッチで立体構造となり、パウチ（１００）の注出口部（１１０）の注出孔が開口した状態に維持されて内容物の流路（１１２）が確保されるものである。
【００１５】
また、狭い注入口のもつ他の容器へ内容物を移し替え易くするために、注出口部の先端を細くしたパウチの注出口部の内面に、図４又は図８に示すように、両側の側板（２２０ａ，２２０ｂ）の外側の側辺（２２３ａ，２２３ｂ）が注出方向へ先細りの傾斜をもつ開口維持部材（２００）を、中央板（２１０）の下面を、通常では熱融着して挿着してしてもよい。
【００１６】
上述の本実施形態の開口維持部材付パウチは、実用テストにおいては、流通及び保管時の集積効率が良く、内容物充填機上でのパウチの搬送に係わるトラブルの発生がなく充填効率が良好であり、また、使用時における注出口部からの内容物の注出状態が良好であった。
【００１７】
なお、パウチに形成する注出口部も上述の実施形態例のようなパウチの角部に斜め方向に突出する形態のほかに、パウチの上部角部又は上部中央部に上方向に突出する形態、パウチの側部角部、側部中央部、側部下部に横方向に突出する形態とすることもできる。
【００１８】
また、パウチの注出口部に開口維持部材を収容するパウチの表面方向へ膨らむ窪みを形成することもできる。この窪みは、パウチの表裏フィルムの一方若しくは両方（好ましくは本発明のパウチを製造する際に開口維持部材を置く側のフィルム）に、開口維持部材の外周形状と等しいか大であり、この開口維持部材を収容可能な大きさで、その深さは開口維持部材の厚み相当か、それ以上かそれ以下にして設けるものである。
【００１９】
【発明の効果】
本発明の開口維持部材付パウチは、開口維持部材を挿着する注出口部もパウチ本体と同様に比較的に平坦であり、流通及び保管時の集積効率が良く、また、通常の内容物充填機でもパウチの搬送上のトラブルを発生しない。
【００２０】
また、本発明の開口維持部材付パウチは、使用時に注出口部の先端を切断して開封し、パウチの外側から指で注出孔に挿着されている開口維持部材を、ヒンジを折り曲げて係合爪や係合突起で係合すると、ワンタッチで立体構造に変えることができ、この立体構造の開口維持部材が流路を確保して、注出孔を開口状態に維持するため、内容物を注出口部から注出し易い。
【００２１】
さらに、狭い注入口のもつ容器へ内容物を移し替え易いように、パウチの注出口部の先端を細くすることもできる。
【図面の簡単な説明】
【図１】（ａ）は、本発明の一実施形態の開口維持部材付パウチの注出口部の構造を示す説明図であり、（ｂ）は、その開口維持部材の平面図である。
【図２】図１に示す開口維持部材付パウチのＡ−Ａ’線断面図である。
【図３】図１に示す開口維持部材付パウチの内容物を注出するときの注出口部内の状態を示す断面図である。
【図４】本発明の他の一実施形態の開口維持部材付パウチの注出口部に挿着する開口維持部材の平面図である。
【図５】（ａ）は、本発明の他の一実施形態の開口維持部材付パウチの注出口部の構造を示す説明図であり、（ｂ）は、その開口維持部材の平面図である。
【図６】図５に示す開口維持部材付パウチのＢ−Ｂ’線断面図である。
【図７】図５に示す開口維持部材付パウチの内容物を注出するときの注出口部内の状態を示す断面図である。
【図８】本発明の他の一実施形態の開口維持部材付パウチの注出口部に挿着する開口維持部材の平面図である。
【符号の説明】
１０……開口維持部材付パウチ
１００……パウチ
１０１……シール部
１１０……注出口部
１１１……注出孔
１１２……流路
１１３……ノッチ
２００……開口維持部材
２０１……ヒンジ
２０２……切込み
２０３……切欠き
２０４……接着
２１０……中央板
２１１，２２１……係合爪
２１２……係合突起
２２０……側板
２２２……断面
２２３……側辺[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pouch for refilling liquid detergents, toiletries, fruit juice drinks, seasonings, and the like, and more particularly, to a pouch with an opening maintaining member that allows easy pouring of contents.
[0002]
[Prior art]
In recent years, refill containers have been widely used for various liquid contents from the standpoint of environmental conservation and resource saving. As this refill container, there is a flexible pouch with a spout part made of a synthetic resin film that is opened by cutting the tip of the spout part during use, but the contents can be transferred to other containers. In order to improve the easiness of pouring the contents of the spout portion when refilling, for example, the spout hole of the spout portion described in JP-A-8-2538 is formed in a hollow cylindrical shape or a hollow shape. A semi-cylindrical shape or a semi-rigid or hard pipe buried in a spout hole of a spout portion described in JP-A-9-24956 has been known.
[0003]
[Problems to be solved by the invention]
However, the conventional pouch with a spout part, which has improved the pourability of the contents described above, has a pouch body that is flat before filling the contents, but the spout part has a three-dimensional structure. In addition, the accumulation efficiency at the time of storage is poor, and troubles in the conveyance of the pouch in the filling machine are likely to occur when filling the contents. For this reason, a special conveying device or the like may be required.
[0004]
The present invention solves the above-described problems of the conventional pouch with a spout part, and the spout part is flat and has a good accumulation efficiency during distribution and storage, and on the conveyance of the pouch on the content filling machine. The present invention provides a pouch with an opening maintaining member that can have a three-dimensional structure that is easy to pour out a pour-out hole of a pour-out portion with one touch when there is no trouble.
[0005]
[Means for Solving the Problems]
That is, as shown in FIG. 1 (a), the first invention of the present invention has a spout portion (110) that cuts the tip during use to open a spout hole (111), and is a synthetic resin on the front and back sides. In the flexible pouch (100) formed by sealing the peripheral edge of the film, as shown in FIG. 1 (b), the rectangular side plates (220a, 220b) are hinged on both sides of the rectangular central plate (210). (201a, 201b) are connected to each other, and each of the two hinges is provided with one or more rectangular cutouts (203) straddling each other, corresponding to both sides of the cutouts. Engagement claws (211 and 221) that engage with each other when the side plates on both sides are bent through the hinges are provided at the edge portions of the central plate and the side plates, respectively, corresponding to each other. Opening maintenance member made of synthetic resin with flat plate shape and rigidity 200), as shown in FIG. 1 (a), which is the NOTE opening maintaining member attached pouches, characterized in that it has inserted into the outlet portion of the (110) Note Deana (111) (10).
[0006]
Next, as shown in FIG. 5 (a), the second invention of the present invention has a spout part (110) that cuts the tip during use to open a spout hole (111), and combines the front and back sides. In the flexible pouch (100) formed by sealing the peripheral edge of the resin film, as shown in FIG. 5 (b), the rectangular side plates (220a, 220b) are provided on both sides of the rectangular central plate (210). The hinges (201a, 201b) are connected to each other, and each of the two hinges is provided so as to straddle one or more rectangular cutouts (203). When the side plates on both sides are bent through the hinges at the edge, the plate-like shape is provided with an engaging projection (212) that engages with the cross section (222) of the notch of the corresponding side plate. An opening maintaining member (200) made of a synthetic resin is shown in FIG. As shown in, which is the NOTE opening maintaining member attached pouches, characterized in that it has inserted into the outlet portion of the (110) Note Deana (111) (10).
[0007]
Next, as shown in FIG. 4 or FIG. 8, the third invention of the present invention is that the side plates (220a, 220b) on both sides of the opening maintaining member (200) to be inserted into the spout hole of the spout portion. The pouch with an opening maintaining member according to the first invention or the second aspect, wherein the outer side sides (223a, 223b) have a taper in the pouring direction.
[0008]
[Action]
Since the pouch with the opening maintaining member of the present invention is relatively flat like the pouch body until the contents are filled, the spout part into which the opening maintaining member is inserted is relatively flat. In addition, there is no trouble in transporting the pouch on the content filling machine, and no special device for transport is required.
[0009]
Moreover, the opening maintenance member inserted in the spout part of the pouch with an opening maintenance member of the present invention is provided with a hinge for bending with a finger from the outside of the pouch, and maintains the formed three-dimensional structure. Engagement claws and engagement protrusions are provided, and when the contents are poured out, a rigid synthetic resin opening maintaining member is formed from a flexible synthetic resin film In order to secure the flow path of the content by maintaining the spout portion to be opened in a cylindrical shape from the inside, the content can be poured out from the spout portion of the pouch.
[0010]
Further, the pouch with an opening maintaining member of the present invention in which the outer sides of the side plates on both sides of the opening maintaining member to be inserted into the pouring hole of the pouring port portion are tapered in the pouring direction is the pouring port portion of the pouch. Therefore, when the contents are transferred to a container having a narrow inlet, the contents can be easily injected.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The pouch with an opening maintaining member of the present invention has a spout portion that cuts the tip at the time of use to open a spout hole and seals the peripheral portion of the front and back synthetic resin films. An opening maintaining member that can be bent, is flat, and has an appropriate rigidity is inserted into the pouring hole, and the opening maintaining member is folded and engaged to form a three-dimensional structure when the contents are poured out. This opening maintaining member is manufactured by an injection molding method using a thermoplastic resin such as polyethylene or polypropylene having rigidity suitable for the purpose of use, and is partially bonded to the inner surface of the pouch spout. Are bonded or heat-sealed and inserted into the spout of the pouch.
[0012]
And the above-mentioned pouch usually has a stretched polyester film layer / polyethylene layer configuration, a stretched polyester film layer / unstretched polypropylene film layer configuration, a nylon film layer / polyethylene layer configuration, a nylon film layer / unstretched polypropylene film layer configuration, Nylon film layer / aluminum foil layer / polyethylene layer configuration, nylon film layer / aluminum foil layer / unstretched polypropylene film layer configuration, stretched polyester film layer / stretched nylon film layer / polyethylene layer configuration, stretched polyester film layer / stretched nylon film layer / Laminated films such as unstretched polypropylene film layers are laminated on the front and back, and at the periphery, as shown in FIG. 1 (a) or FIG. 5 (a), a sealing portion is formed by a heat sealing method such as a heat sealing method. ( 01) is the one that produced provided. Depending on the purpose of use, a single layer film may be used. In addition, the notch (111) for opening is normally formed in the spout part (110), and the form of the pouch is a self-standing by providing a bottom member at the bottom even if it is a commonly known flat pouch. It may be a standing pouch.
[0013]
A pouch (10) with an opening maintaining member according to an embodiment of the present invention is formed in, for example, the pour hole (111) of the pour port (110) of the pouch (100) shown in FIG. ), Square side plates (220a, 220b) are connected to both sides of the square central plate (210) via hinges (201a, 201b), respectively. One or more (two in the figure) quadrangular cutouts (203) are provided to straddle, and the edge of the center plate and the end of the side plate corresponding to the left and right sides of each of these cutouts An opening maintaining member made of a synthetic resin having a flat plate shape and provided with engaging claws (211 and 221) which engage with each other when the side plates on both sides are bent through hinges at the edge. (200) of the spout (110) as shown in FIG. The face, central plate lower surface of (210), in the normal is to prepared by inserting heat sealed. And when pouring out the contents, the tip of the spout portion is cut to open the spout hole, and as shown in FIG. 3, the hinge (201) of the opening maintaining member (200) is put into the pouch (100). The side plates (220) on both sides are bent inward at a substantially right angle with respect to the center plate (210), and the engagement claws (211) at the edge of the notch center plate and the side plates are pressed. When the engaging claw (221) at the end edge is engaged, the flat plate-shaped opening maintaining member (200) becomes a three-dimensional structure with one touch, and the outlet hole (100) of the outlet (100) of the pouch (100) is formed. It is maintained in an open state, and the flow path (112) for the contents is secured.
[0014]
Next, the pouch (10) with an opening maintaining member according to another embodiment of the present invention is formed in, for example, the dispensing hole (111) of the spout (110) of the pouch (100) shown in FIG. As shown in FIG. 5B, square side plates (220a, 220b) are connected to both sides of the square central plate (210) via hinges (201a, 201b), respectively. Each of the hinges is provided with one or more (two in the figure) quadrangular cutouts (203) straddling each other, and the side plates on both sides are provided at the edge of the central plate of each of these cutouts. A plate-shaped and rigid synthetic resin opening maintaining member (200) provided with an engaging protrusion (212) that engages with a notch cross-section (222) of a corresponding side plate when bent through a hinge. 6 on the inner surface of the spout part (110), as shown in FIG. The lower surface 210), in the normal is to prepared by inserting heat sealed. And when pouring out the contents, the tip of the spout portion is cut to open the spout hole, and as shown in FIG. 7, the hinge (201) of the opening maintaining member (200) is put into the pouch (100). The side plates (220) on both sides are bent inward at a substantially right angle with respect to the center plate (210), and the engagement protrusions (212) at the edge of the notch center plate and the side plates are pressed. When the cut-out cross section (222) is engaged, the flat plate-shaped opening maintaining member (200) has a three-dimensional structure with one touch, and the pour hole (110) of the pouch (100) is opened. The content flow path (112) is ensured.
[0015]
Moreover, in order to make it easy to transfer the contents to another container having a narrow inlet, on the inner surface of the outlet of the pouch with the tip of the outlet being narrowed, as shown in FIG. 4 or FIG. The opening side maintaining member (200) whose side sides (223a, 223b) outside the side plates (220a, 220b) are tapered in the pouring direction is usually heat-sealed with the lower surface of the central plate (210). You may insert it.
[0016]
In the practical test, the pouch with the opening maintaining member of the present embodiment described above has good accumulation efficiency during distribution and storage, and there is no trouble related to the conveyance of the pouch on the content filling machine, and the filling efficiency is good. In addition, the state of pouring the contents from the spout portion during use was good.
[0017]
In addition to the form in which the spout part formed in the pouch protrudes obliquely at the corner of the pouch as in the above embodiment, the form protrudes upward at the upper corner or upper center of the pouch, It can also be set as the form which protrudes in a horizontal direction in the side corner | angular part of a pouch, a side center part, and a side part lower part.
[0018]
Moreover, the hollow which swells in the surface direction of the pouch which accommodates an opening maintenance member in the spout part of a pouch can also be formed. This depression is equal to or larger than the outer peripheral shape of the opening maintaining member on one or both of the front and back films of the pouch (preferably the film on which the opening maintaining member is placed when the pouch of the present invention is manufactured). The maintenance member is of a size that can be accommodated, and its depth is equal to or greater than the thickness of the opening maintenance member.
[0019]
【The invention's effect】
The pouch with the opening maintaining member of the present invention has a relatively flat spout portion for inserting the opening maintaining member in the same manner as the pouch body, and has good accumulation efficiency during distribution and storage, and is filled with normal contents. Troubles in transporting the pouch will not occur even in the machine.
[0020]
In addition, the pouch with an opening maintaining member of the present invention cuts and unseals the tip of the spout portion at the time of use, and folds the hinge from the opening maintaining member inserted into the extraction hole by a finger from the outside of the pouch. When engaged with an engaging claw or engaging projection, it can be changed to a three-dimensional structure with a single touch, and the three-dimensional structure opening maintaining member secures the flow path and maintains the dispensing hole in an open state. Is easy to pour out from the spout.
[0021]
Further, the tip of the pouch spout can be made thin so that the contents can be easily transferred to a container having a narrow inlet.
[Brief description of the drawings]
FIG. 1A is an explanatory view showing a structure of a spout part of a pouch with an opening maintaining member according to an embodiment of the present invention, and FIG. 1B is a plan view of the opening maintaining member.
2 is a cross-sectional view taken along the line AA ′ of the pouch with an opening maintaining member shown in FIG. 1. FIG.
3 is a cross-sectional view showing a state in the spout portion when the contents of the pouch with an opening maintaining member shown in FIG. 1 are poured out. FIG.
FIG. 4 is a plan view of an opening maintaining member inserted into a spout part of a pouch with an opening maintaining member according to another embodiment of the present invention.
5A is an explanatory view showing a structure of a spout part of a pouch with an opening maintaining member according to another embodiment of the present invention, and FIG. 5B is a plan view of the opening maintaining member. .
6 is a cross-sectional view of the pouch with an opening maintaining member shown in FIG. 5 taken along the line BB ′.
7 is a cross-sectional view showing a state in the spout portion when the contents of the pouch with an opening maintaining member shown in FIG. 5 are poured out.
FIG. 8 is a plan view of an opening maintaining member inserted into a spout part of a pouch with an opening maintaining member according to another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Pouch 100 with an opening maintenance member ... Pouch 101 ... Seal part 110 ... Outlet part 111 ... Outlet hole 112 ... Channel 113 ... Notch 200 ... Opening maintenance member 201 ... Hinge 202 ... ... notch 203 ... notch 204 ... adhesion 210 ... center plate 211, 221 ... engagement claw 212 ... engagement protrusion 220 ... side plate 222 ... section 223 ... side

Claims

In a flexible pouch that has a spout opening that cuts the tip during use to open a spout hole and seals the peripheral edges of the front and back synthetic resin films. Are connected to each other via hinges, and each of the two hinges is provided so as to straddle one or more rectangular cutouts, and the edges of the center plate corresponding to both sides of the cutouts. A plate-shaped and rigid synthetic resin opening provided with engaging claws that engage with each other when the side plates on both sides are bent via the hinges at the edge portions of the plate and the side plate. A pouch with an opening maintaining member, wherein the maintaining member is inserted into the outlet hole of the outlet portion.

In a flexible pouch that has a spout opening that cuts the tip during use to open a spout hole and seals the peripheral edges of the front and back synthetic resin films. Are respectively provided via a hinge, and each of the two hinges is provided so as to straddle one or more square-shaped notches, and at the edge of each center plate of the notches, When the side plates on both sides are bent through the hinges, a flat and rigid synthetic resin opening maintaining member provided with an engaging protrusion that engages with a cross-section of the notch of the corresponding side plate, the spout A pouch with an opening maintaining member, wherein the pouch is inserted into the outlet hole of the portion.

The opening maintaining member according to claim 1 or 2, wherein the outer sides of the side plates on both sides of the opening maintaining member to be inserted into the pouring hole of the pouring port portion have a tapered inclination in the pouring direction. Pouch with.