JP4132121B2

JP4132121B2 - Outlet plug with built-in opening blade

Info

Publication number: JP4132121B2
Application number: JP05155697A
Authority: JP
Inventors: 剛史斎藤; 徳生林田
Original assignee: Toppan Inc
Current assignee: Toppan Inc
Priority date: 1997-03-06
Filing date: 1997-03-06
Publication date: 2008-08-13
Anticipated expiration: 2017-03-06
Also published as: JPH10245064A

Description

【０００１】
【発明の属する技術分野】
本発明は、清酒、果汁飲料、調味料、油類や液体洗剤などに使用される液体用紙容器の頂部や、口栓を有する三方シール袋、四方シール袋、ガゼット袋、スタンディングパウチ等の袋の側面に突設される開封刃を内蔵する注出口栓に関するものである。
【０００２】
ここでは、液体用紙容器や三方シール袋、四方シール袋、ガゼット袋、スタンディングパウチ等の袋を総称して包装用容器という。
【０００３】
【従来の技術】
従来、液体用紙容器である包装用容器（２０）は、例えば図７（ｂ）に示すように、四角形状の胴部をもち、その切妻屋根形の頂部傾斜板（２１）には、注出のし易さから注出口栓（１０）が突設されたものが広く使用されていた。この注出口栓は、スパウト（１００）（注出口具）にキャップ（２００）を螺合して冠着したものであり、注出口栓に開封刃を内蔵するものとしては、例えば実公平５−３５０５８号公報で開示されたものがある。この開封刃を内蔵する注出口栓は、破断可能なフィルムで封止した液体用紙容器の注出孔に取着されこの注出孔に対応した円筒部を備える注出口具と、この注出口具の円筒部に挿入され下縁に刃部を備える略筒状の開封刃と、円筒部を覆うようにして取着されたキャップとからなり、円筒部の内面とこれに相対する開封刃の外面との両者は、互いに摺接して上下方向に移動可能な回転防止手段を備えて、開封刃が円筒部に対して上下移動可能に設けられ、開封刃は、開封刃の筒壁部に上縁から下縁側に向けて傾斜して上方に面する斜面を備え、キャップは、下方に面して開封刃の斜面に摺接する案内斜面を備える筒体を有して、キャップの回転時に開封刃を下降可能に設けたものであり、内容物を注出時に、図７（ｂ）に示すように、キャップ（２００）を回転させて取り外すときに、キャップの回転により開封用筒体（１４０）を降下させ先端の開封刃（１４３）で封止するフィルム（３０）を破断して容器を開封するものであった。
【０００４】
また、袋に注出口栓を設けたものとして、実開昭５２−１２３４１８号公報、実公昭５９−４９３７号公報、実開昭５７−５２４３７号公報、実開昭６２−１１５３５６号公報に記載された考案がある。
【０００５】
【発明が解決しようとする課題】
ところで、最近、環境保全や省資源の立場から、使用済みの容器包装を分別回収して、再商品化することが求められるようになってきた。しかしながら、上述の従来の開封刃を内蔵する注出口栓を取り付けた包装用容器（２０）は、図７（ｂ）に示すように、注出口栓（１０）の開封刃（１４３）が容器の内側に突出しているために、容器を解体して分別回収するときに、手などに怪我をし易いことがあった。
【０００６】
また、前述のような開封刃を、袋に設けた注出口栓に適用した場合、突き出た開封刃が対面する袋を構成するフィルムに当たり、フィルムが破れ内容物がこの部分から漏れるといった問題があった。
【０００７】
本発明は、上述の従来の開封刃を内蔵する注出口栓の問題を解決したものであり、使用済みの液体用紙容器を解体して分別回収するときに、注出口栓の開封刃で手などに怪我をする危惧がなく、袋の場合フィルムを破る恐れがなく、また、使用時に注出状態が良好な開封刃を内蔵する注出口栓を提供するものである。
【０００８】
【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に示すように、破断可能な封止フィルムで封止された包装用容器の注出孔の周縁部上面に熱融着して突設されるスパウト（１００）とキャップ（２００）からなる注出口栓であって、前記キャップ（２００）には、周壁（２２０）内周面に螺合部（２２１）を設け、外周面に案内傾斜面（２３１）を形成した案内用筒部（２３０）を天板（２１０）下面の中央位置に垂設し、注出筒（１１０）をフランジ（１２０）に立設する前記スパウト（１００）には、前記注出筒の外周面に前記キャップとの螺合部（１１１）を設け、内周面に下端に係止突起（１１３）をもつ複数の縦溝（１１２）を設け、この注出筒に、外周面に前記スパウトの縦溝（１１２）を摺動する複数の摺動突起（１３１）をもち、内周面に複数の縦溝（１３２）を設けた保護用筒体（１３０）を摺動可能に挿着し、この保護用筒体に、周壁（１４１）の外周面に前記保護用筒体の縦溝（１３２）を摺動する複数の摺動突起（１４２）をもち、内周面に前記キャップとの案内傾斜面（１４４）を形成し、この案内傾斜面の下方の内周面に二つの流通孔（１４６）を対応位置にもつ整流板（１４５）を設け、前記周壁（１４１）の下端に開封刃（１４３）を形成し、この開封刃の内側に先端が開封刃よりも下方位置の複数個の対応するフィルム除去用角（１４７）を前記整流板（１４５）に設けた開封用筒体（１４０）を摺動可能に挿着し、キャップを取り外したときに、図３に示すように、容器（２０）内に突出する前記保護用筒体（１３０）が、下端の開封刃（１４３）で封止フィルム（３０）を破断して容器内へ突出する開封用筒体（１４０）を内側に収容させて固着すること特徴とする開封刃を内蔵する図１に示す注出口栓（１０）である。
【０００９】
そして、本発明の第２の発明は、図２に示すように、包装用容器の口栓取付孔の周縁部下面に熱融着して突設されるスパウト（１００）とキャップ（２００）からなる注出口栓であって、前記キャップ（２００）には、周壁（２２０）内周面に螺合部（２２１）を設け、外周面に案内傾斜面（２３１）を形成した案内用筒部（２３０）を天板（２１０）下面の中央位置に垂設し、注出筒（１１０）をフランジ（１２０）に立設する前記スパウト（１００）には、前記注出筒の外周面に前記キャップとの螺合部（１１１）を設け、内周面に下端に係止突起（１１３）をもつ複数の縦溝（１１２）を設け、前記フランジ（１２０）の下面に封止フィルム（３０）を熱融着し、前記注出筒（１１０）に、外周面に前記スパウトの縦溝（１１２）を摺動する複数の摺動突起（１３１）をもち、内周面に複数の縦溝（１３２）を設けた保護用筒体（１３０）を摺動可能に挿着し、この保護用筒体に、周壁（１４１）の外周面に前記保護用筒体の縦溝（１３２）を摺動する複数の摺動突起（１４２）をもち、内周面に前記キャップとの案内傾斜面（１４４）を形成し、この案内傾斜面の下方の内周面に二つの流通孔（１４６）を対応位置にもつ整流板（１４５）を設け、前記周壁（１４１）の下端に開封刃（１４３）を形成し、この開封刃の内側に先端が開封刃よりも下方位置の複数個の対応するフィルム除去用角（１４７）を前記整流板（１４５）に設けた開封用筒体（１４０）を摺動可能に挿着し、キャップを取り外したときに、容器内に突出する前記保護用筒体（１３０）が、下端の開封刃（１４３）で封止フィルム（３０）を破断して容器内へ突出する開封用筒体（１４０）を内側に収容させて固着すること特徴とする開封刃を内蔵する注出口栓（１０）である。
【００１０】
【発明の実施の形態】
本発明の開封刃を内蔵する注出口栓は、図６（a）に示すように、包装用容器（２０）の内側から封止フィルム（３０）で封止された例えば頂部傾斜板（２１）の注出孔（２２）の周縁部上面に、スパウト（１００）のフランジ（１２０）の下面を超音波シール法などにより熱融着して突設するか、または、図６（ｂ）に示すように、スパウト（１００）のフランジ（１２０）の下面に封止フィルム（３０）を超音波シール法やインサート射出成形法などにより熱融着して注出孔を封止した本発明の注出口栓を、液体用紙容器（２０）の口栓取付孔（２３）に注出筒を挿入し、フランジ（１２０）の上面を容器の口栓取付孔の周縁部下面に熱融着して突設するものである。
【００１１】
そして、本発明の注出口栓（１０）の構成部材は、図１に示すように、キャップ（２００）とスパウト（１００）と保護用筒体（１３０）と開封用筒体（１４０）とからなる。次に、これら構成部材の構造を詳細に説明する。
【００１２】
まず、キャップ（２００）は、図５（ａ）及び（ｂ）に示すように、天板（２１０）と周壁（２２０）からなり、周壁の内周面には、スパウトとの螺合部（２２１）を設け、天板（２１０）下面の中央位置には、外周面に保護用筒体との図５（ｃ）の外側から見た展開図に示す案内傾斜面（２３１）を設けた案内用筒部（２３０）を垂設したものである。
【００１３】
次に、スパウト（１００）は、図１及び図２に示すように、フランジ（１２０）の内周縁部に注出筒（１１０）を立設したものであり、その注出筒（１１０）の外周面にキャップとの螺合部（１１１）を設け、内周面には、係止突起（１１３）をもつ通常８本からなる複数の縦溝（１１２）を設けたものである。
【００１４】
次に、保護用筒体は、図１及び図２に示すように、スパウトの縦溝（１１２）を摺動する通常８個の複数の摺動突起（１３１）を外周面上方に設け、内周面には係止突起（１３３）をもつ通常８本の複数の縦溝（１３２）を設けたものである。
【００１５】
次に、開封用筒体は、図４（ａ）及び（ｂ）に示すように、周壁（１４１）の外周面に保護用筒体の縦溝を摺動する複数の摺動突起（１４２）をもち、内周面にキャップとの案内傾斜面（１４４）を形成し、この案内傾斜面の下方の内周面に二つの流通孔（１４６）を対応位置にもつ整流板（１４５）を設け、周壁（１４１）の下端に開封刃（１４３）を形成し、この開封刃の内側に先端が開封刃よりも下方位置の通常２個の複数個の対応するフィルム除去用角（１４７）を整流板に設けものである。そして、開封刃は、通常、複数の三角刃を並べたものであるが、封止フィルムの破断片が落下することを防ぐために、任意の箇所に欠刃部を設けるものである。
【００１６】
上述した構成部材のキャップ、スパウト、保護用筒体及び開封用筒体は、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で作製するものであり、図１又は図２示すように、スパウト（１００）に保護用筒体（１３０）と開封用筒体（１４０）を挿着し、キャップ（２００）を螺合して装着して本発明の開封刃を内蔵する注出口栓を作製する。なお、封止フィルムは、開封刃で破断可能な積層フィルムで、例えばアルミニウム箔の表裏にポリオレフィン層を形成したものである。
【００１７】
そして、本発明の開封刃を内蔵する注出口栓を頂部に突設した包装用容器は、キャップを取り外すためにキャップを回転して上昇させると、キャップの天板から垂設する案内用筒部の外周面の案内傾斜面が、開封用筒体の内周面の案内傾斜面と摺接して、開封用筒体がキャップの回転方向と逆回転方向の力を受けるが、開封用筒体の外周面の摺動突起が外側の保護用筒体の内周面の縦溝と摺接しているため、縦溝に沿って開封用筒体が下降して、まず、フィルム除去用角が封止フィルムを突き破り、次に、開封刃で封止フィルムを破断して包装用容器を開封する。また、下降する開封用筒体に連動して、保護用筒体も、外周面の摺動突起をスパウトの注出筒の内周面の縦溝に摺接させて、縦溝に沿って下降し、図３に示すように、封止フィルム（３０）の破断片（３１）を保護用筒体（１３０）の外周面の未破断の封止フィルムと連続している側に排除し、キャップを取り外したときには、保護用筒体（１３０）は、開封用筒体（１４０）を内側に収容して、外周面の摺動突起（１３１）をスパウトの内周面の縦溝の下端の係止突起（１１３）に当接させて固着するように設計するものである。
【００１８】
そして、図７（ａ）に示すように、本発明の開封刃を内蔵する注出口栓（１０）を頂部傾斜板（２１）に突設した包装用容器（２０）は、キャップ（２００）を取り外して容器を一旦開封すると、容器内へ開封用筒体（１４０）と保護用筒体（１３０）とが突出するが、開封刃（１４３）をもつ開封用筒体（１４０）が保護用筒体（１３０）の内側に収容されているため、使用後の容器を解体して分別回収するときに、手などを開封刃（１４３）で怪我することがない。また、図３に示すように、封止フィルム（３０）の開封刃で破断された破断片（３１）が、保護用筒体（１３０）の外周面と開封用筒体（１４０）のフィルム除去用角（１４７）に妨げられて、スパウト（１００）の内側の注出孔を塞ぐことがなく、さらに、開封用筒体の整流板（１４５）に対応位置設けられた二つの流通孔（１４６）が、注出するときに、片方が内容物を注出し、他方がエアを流入するため、使用中の内容物（４０）の注出状態が極めて良好である。
【００１９】
【発明の効果】
本発明の開封刃を内蔵する注出口栓を取り付けた包装用容器は、使用後の分別回収のために容器を解体しても、開封用筒体の開封刃が保護用筒体で保護させているため、従来の開封刃を内蔵する注出口栓のように容器の内側に突出する開封刃で手などを怪我する危惧がない。
【００２０】
また、袋に設けたとしても、開封用筒体の開封刃が保護用筒体で保護されているため、対面のフィルムを破ることがない。
【００２１】
また、開封刃で破断された破断片が、注出孔を塞いで内容物の注出を妨げることがなく、さらに、開封用筒体に設けられた整流板の整流効果により、使用時の内容物の注出状態が極めて良好である。
【図面の簡単な説明】
【図１】本発明の一実施例の開封刃を内蔵する注出口栓の構造を示す説明図である。
【図２】本発明の他の一実施例の開封刃を内蔵する注出口栓の構造を示す説明図である。
【図３】包装用容器に取り付けた図１に示す実施例の注出口栓のキャップを取り外したときの状態を示す説明図である。
【図４】（ａ）は、開封用筒体の一実施例の平面図であり、（ｂ）は、断面図であり、（ｃ）は、その内側から見た展開図である。
【図５】（ａ）は、キャップの一実施例の底面図であり、（ｂ）は、一部を切欠いた部分断面図であり、（ｃ）は、その開封用筒体の外側から見た展開図である。
【図６】（ａ）は、スパウトを包装用容器の注出孔に外付けした状態を示す説明図であり、（ｂ）は、内付けした状態を示す説明図である。
【図７】（ａ）は、図１に示す実施例の注出口栓を取り付けた包装用容器を開封したときの状態を示す説明図であり、（ｂ）は、従来の一例の開封刃を内蔵する注出口栓を取り付けた包装用容器を開封したときの状態を示す説明図である。
【符号の説明】
１０……注出口栓
２０……包装用容器
２１……頂部傾斜板
２２……注出孔
２３……口栓取付孔
３０……封止フィルム
３１……破断片
４０……内容物
１００……スパウト
１１０……注出筒
１１１，２２１……螺合部
１１２，１３２……縦溝
１１３……係止突起
１２０……フランジ
１３０……保護用筒体
１３１，１４２……摺動突起
１４０……開封用筒体
１４１，２２０……周壁
１４３……開封刃
１４４，２３１……案内傾斜面
１４５……整流板
１４６……流通孔
１４７……フィルム除去用角
２００……キャップ
２１０……天板
２３０……案内用筒部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to the top of a liquid paper container used for sake, fruit juice beverages, seasonings, oils, liquid detergents, etc., and three-side seal bags, four-side seal bags, gusset bags, standing pouches, etc. The present invention relates to a spout stopper with a built-in opening blade projecting on a side surface.
[0002]
Here, bags such as liquid paper containers, three-side seal bags, four-side seal bags, gusset bags, and standing pouches are collectively referred to as packaging containers.
[0003]
[Prior art]
Conventionally, a packaging container (20), which is a liquid paper container, has, for example, a quadrangular body as shown in FIG. 7 (b), and is poured into a gable roof-shaped top inclined plate (21). From the point of view of ease of use, the one provided with a spout plug (10) is widely used. This spout stopper is a spout (100) (outlet tool) screwed with a cap (200) and crowned. There is one disclosed in Japanese Patent No. 35058. The spout stopper incorporating the opening blade is attached to the spout hole of the liquid paper container sealed with a breakable film and has a cylindrical portion corresponding to the spout hole, and the spout tool And a cap attached to cover the cylindrical portion, and an inner surface of the cylindrical portion and an outer surface of the opening blade opposite to the cylindrical portion. And an anti-rotation means which can slide in contact with each other and move up and down, and the opening blade is provided so as to be movable up and down with respect to the cylindrical portion, and the opening blade has an upper edge on the cylindrical wall portion of the opening blade. The cap has an inclined surface that slopes toward the lower edge and faces upward, and the cap has a cylindrical body that has a guide inclined surface that faces downward and slides on the inclined surface of the opening blade, and the opening blade is rotated when the cap rotates. As shown in Fig. 7 (b), the cap is provided when the contents are poured out. When removing (200) by rotating the cap, the opening cylinder (140) is lowered and the film (30) sealed with the opening blade (143) at the tip is broken to open the container. there were.
[0004]
Further, as a bag provided with a spout stopper, it is described in Japanese Utility Model Publication No. 52-123418, Japanese Utility Model Publication No. 59-4937, Japanese Utility Model Publication No. 57-52437, Japanese Utility Model Publication No. 62-115356. There is an idea.
[0005]
[Problems to be solved by the invention]
By the way, recently, from the standpoints of environmental protection and resource saving, it has been demanded to separate and collect used containers and packaging for re-commercialization. However, as shown in FIG. 7 (b), the packaging container (20) to which the above-described conventional opening blade is installed is provided with the opening blade (143) of the outlet plug (10). Since it protrudes inward, when the container is disassembled and collected separately, the hand or the like may be easily injured.
[0006]
Further, when the opening blade as described above is applied to the spout stopper provided on the bag, there is a problem that the protruding opening blade hits the film constituting the bag facing and the film is torn and the contents leak from this portion. It was.
[0007]
The present invention solves the problem of the spout stopper incorporating the above-described conventional opening blade, and when the used liquid paper container is disassembled and separated and collected, the opening blade of the spout stopper can be used with a hand or the like. The present invention provides a spout plug that has a built-in opening blade that is not in danger of injury, breaks the film in the case of a bag, and that is well-poured during use.
[0008]
[Means for Solving the Problems]
That is, as shown in FIG. 1, the first invention of the present invention is heat-sealed and protruded from the upper surface of the peripheral portion of the pouring hole of the packaging container sealed with a breakable sealing film. A spout stopper comprising a spout (100) and a cap (200), wherein the cap (200) is provided with a threaded portion (221) on the inner peripheral surface of the peripheral wall (220), and a guide inclined surface ( In the spout (100) in which the guide cylinder part (230) formed with 231) is suspended at the center position of the lower surface of the top plate (210) and the extraction cylinder (110) is erected on the flange (120), A threaded part (111) with the cap is provided on the outer peripheral surface of the pouring tube, and a plurality of vertical grooves (112) having locking projections (113) on the lower end are provided on the inner peripheral surface. And a plurality of sliding protrusions (131) sliding on the spout vertical groove (112) on the outer peripheral surface, A protective cylinder (130) provided with a plurality of vertical grooves (132) on the surface is slidably inserted, and the protective cylinder is attached to the protective cylinder on the outer peripheral surface of the peripheral wall (141). A plurality of sliding protrusions (142) sliding on the groove (132) are formed, and a guide inclined surface (144) with the cap is formed on the inner peripheral surface, and two inner peripheral surfaces below the guide inclined surface are formed. A rectifying plate (145) having a flow hole (146) at a corresponding position is provided, an opening blade (143) is formed at the lower end of the peripheral wall (141), and the tip is located below the opening blade inside the opening blade. As shown in FIG. 3, when the opening cylinder (140) provided with a plurality of corresponding film-removing corners (147) on the current plate (145) is slidably inserted and the cap is removed. In addition, the protective cylinder (130) protruding into the container (20) is a lower opening blade (143). 1 is a spout stopper (10) shown in FIG. 1, which incorporates an opening blade characterized in that an opening cylinder (140) that breaks the stopper film (30) and protrudes into the container is housed and fixed inside. .
[0009]
And the 2nd invention of the present invention is, as shown in FIG. 2, from a spout (100) and a cap (200) protruding by heat-sealing on the lower surface of the peripheral edge of the cap attachment hole of the packaging container. The cap (200) is provided with a threaded portion (221) on the inner peripheral surface of the peripheral wall (220) and a guide cylinder portion (231) formed with a guide inclined surface (231) on the outer peripheral surface. 230) is suspended at the center of the lower surface of the top plate (210), and the spout (100) is erected on the flange (120). The spout (100) has the cap on the outer peripheral surface of the pour tube. And a plurality of vertical grooves (112) having locking projections (113) at the lower end on the inner peripheral surface, and a sealing film (30) on the lower surface of the flange (120). Heat splicing and sliding the spout longitudinal groove (112) on the outer peripheral surface of the dispensing tube (110). A protective cylinder (130) having a plurality of sliding projections (131) and having a plurality of longitudinal grooves (132) on the inner peripheral surface is slidably inserted, and the peripheral wall is attached to the protective cylinder. The outer peripheral surface of (141) has a plurality of sliding projections (142) that slide in the longitudinal groove (132) of the protective cylinder, and the guide inclined surface (144) with the cap is formed on the inner peripheral surface. A flow regulating plate (145) having two flow holes (146) at corresponding positions is provided on the inner peripheral surface below the inclined guide surface, and an opening blade (143) is formed at the lower end of the peripheral wall (141). Inside the opening blade, the opening cylinder (140) provided with a plurality of corresponding film-removing corners (147) with the tip positioned below the opening blade on the current plate (145) is slidably inserted. When the cap is removed, the protective cylinder (130) protruding into the container is opened at the lower end. A spout plug (10) with a built-in opening blade characterized in that the sealing film (30) is broken at (143) and the opening cylinder (140) protruding into the container is accommodated and fixed inside. is there.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 6 (a), the spout stopper incorporating the opening blade of the present invention is sealed with a sealing film (30) from the inside of the packaging container (20), for example, a top inclined plate (21). Note the peripheral portion of the upper surface of the Deana (22) of, or to project the lower surface of the flange (120) of the spout (100) heat sealed by ultrasonic sealing method or shown in FIG. 6 (b) Thus, the spout of the present invention in which the sealing film (30) is heat-sealed to the lower surface of the flange (120) of the spout (100) by an ultrasonic sealing method, an insert injection molding method, or the like to seal the outlet hole. Insert the spout tube into the cap mounting hole (23) of the liquid paper container (20), and heat-seal the upper surface of the flange (120) to the bottom surface of the peripheral edge of the container plug mounting hole. To do.
[0011]
And as shown in FIG. 1, the component of the spout stopper (10) of this invention consists of a cap (200), a spout (100), a protection cylinder (130), and an opening cylinder (140). Become. Next, the structure of these structural members will be described in detail.
[0012]
First, the cap (200) comprises a top plate (210) and a peripheral wall (220) as shown in FIGS. 5 (a) and 5 (b), and on the inner peripheral surface of the peripheral wall, a threaded portion (with a spout) ( 22 1 ), and a guide inclined surface (231) shown in a developed view as seen from the outside of FIG. 5 (c) with the protective cylinder is provided on the outer peripheral surface at the center position of the lower surface of the top plate (210). A guide cylinder (230) is suspended.
[0013]
Next, as shown in FIGS. 1 and 2, the spout (100) has a pour tube (110) erected on the inner peripheral edge of the flange (120). The outer peripheral surface is provided with a threaded portion (111) with a cap, and the inner peripheral surface is provided with a plurality of vertical grooves (112) which are usually formed with eight locking projections (113).
[0014]
Next, as shown in FIG. 1 and FIG. 2, the protective cylinder is provided with a plurality of normally eight sliding protrusions (131) that slide in the vertical groove (112) of the spout on the outer peripheral surface. Normally, a plurality of vertical grooves (132) having locking protrusions (133) are provided on the peripheral surface.
[0015]
Next, as shown in FIGS. 4A and 4B, the opening cylinder has a plurality of sliding protrusions (142) that slide on the outer peripheral surface of the peripheral wall (141) in the longitudinal groove of the protective cylinder. A guide inclined surface (144) with the cap is formed on the inner peripheral surface, and a current plate (145) having two flow holes (146) at corresponding positions is provided on the inner peripheral surface below the guide inclined surface. An opening blade (143) is formed at the lower end of the peripheral wall (141), and two or more corresponding film removal angles (147) are usually rectified inside the opening blade with the tip positioned below the opening blade. It is provided on the plate. The opening blade is usually a plurality of triangular blades arranged side by side, but in order to prevent the broken pieces of the sealing film from falling, a missing blade portion is provided at an arbitrary location.
[0016]
The caps, spouts, protective cylinders and opening cylinders of the constituent members described above are produced by an injection molding method using a thermoplastic resin such as polyethylene and polypropylene, and as shown in FIG. 1 or FIG. A spout (100) is inserted with a protective cylinder (130) and an opening cylinder (140), and a cap (200) is screwed onto the spout to create a spout plug incorporating the opening blade of the present invention. To do. The sealing film is a laminated film that can be broken with an opening blade, and is formed, for example, by forming a polyolefin layer on the front and back of an aluminum foil.
[0017]
And the packaging container which provided the spout stopper which incorporated the opening blade of this invention in the top part, when rotating and raising a cap in order to remove a cap, the cylinder part for a guide suspended from the top plate of a cap The guide inclined surface of the outer peripheral surface is in sliding contact with the guide inclined surface of the inner peripheral surface of the opening cylinder, and the opening cylinder receives a force in the direction opposite to the rotation direction of the cap. Since the sliding protrusion on the outer peripheral surface is in sliding contact with the vertical groove on the inner peripheral surface of the outer protective cylinder, the opening cylinder descends along the vertical groove, and the film removal corner is sealed first. The film is pierced, and then the sealing film is broken with an opening blade to open the packaging container. In conjunction with the lowering opening cylinder, the protective cylinder also descends along the longitudinal groove by sliding the outer surface sliding protrusions into the longitudinal groove on the inner circumferential surface of the spout tube. Then, as shown in FIG. 3, the broken piece (31) of the sealing film (30) is removed on the side of the outer peripheral surface of the protective cylinder (130) that is continuous with the unbroken sealing film, and the cap When the protective cylinder (130) is removed, the opening cylinder (140) is accommodated inside, and the sliding projection (131) on the outer peripheral surface is engaged with the lower end of the vertical groove on the inner peripheral surface of the spout. It is designed to abut on the stop projection (113) and to be fixed.
[0018]
Then, as shown in FIG. 7 (a), the packaging container (20) in which the spout plug (10) containing the opening blade of the present invention is provided on the top inclined plate (21) has the cap (200). Once the container is removed and opened, the opening cylinder (140) and the protection cylinder (130) protrude into the container, but the opening cylinder (140) having the opening blade (143) is the protection cylinder. Since it is housed inside the body (130), when the used container is disassembled and collected separately, the hand or the like is not injured by the opening blade (143). Moreover, as shown in FIG. 3, the broken pieces (31) broken by the opening blade of the sealing film (30) are removed from the outer peripheral surface of the protective cylinder (130) and the opening cylinder (140). There are two obstruction holes (146) provided at positions corresponding to the flow straightening plate (145) of the opening cylinder without being blocked by the use angle (147) and blocking the pouring hole inside the spout (100). ), When one is poured out, the other is poured out, and the other flows in air, so that the state of the contents (40) being used is very good.
[0019]
【The invention's effect】
Even if the packaging container equipped with the spout stopper incorporating the opening blade of the present invention is disassembled for separation and collection after use, the opening blade of the opening cylinder is protected by the protective cylinder. Therefore, there is no risk of injury to the hand or the like with the opening blade protruding inside the container like a spout stopper with a built-in opening blade.
[0020]
Even if it is provided on the bag, since the opening blade of the opening cylinder is protected by the protection cylinder, the facing film is not broken.
[0021]
In addition, the broken pieces broken by the opening blade do not block the pouring hole and prevent the content from being poured out. The state of the item being poured out is very good.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing the structure of a spout stopper with a built-in opening blade according to an embodiment of the present invention.
FIG. 2 is an explanatory view showing the structure of a spout stopper with a built-in opening blade according to another embodiment of the present invention.
FIG. 3 is an explanatory view showing a state when the cap of the spout stopper of the embodiment shown in FIG. 1 attached to the packaging container is removed.
4A is a plan view of an embodiment of an opening cylinder, FIG. 4B is a cross-sectional view, and FIG. 4C is a development view viewed from the inside thereof.
5A is a bottom view of an embodiment of a cap, FIG. 5B is a partial cross-sectional view with a part cut away, and FIG. 5C is a view from the outside of the opening cylinder; FIG.
6A is an explanatory view showing a state in which a spout is externally attached to a pouring hole of a packaging container, and FIG. 6B is an explanatory view showing an internal state.
7 (a) is an explanatory view showing a state when the packaging container with the spout stopper of the embodiment shown in FIG. 1 is opened, and FIG. 7 (b) is an example of a conventional opening blade. It is explanatory drawing which shows a state when the container for packaging which attached the spout stopper to incorporate is opened.
[Explanation of symbols]
10 …… Outlet plug 20 …… Packaging container 21 …… Top inclined plate 22 …… Pouring hole 23 …… Port plug mounting hole 30 …… Sealing film 31 …… Broken piece 40 …… Contents 100 …… Spout 110 …… Pouring cylinder 111,221 …… Screw portion 112,132 …… Vertical groove 113 …… Locking protrusion 120 …… Flange 130 …… Protective cylinder 131,142 …… Sliding protrusion 140 …… Opening cylinders 141, 220... Peripheral wall 143... Opening blades 144 and 231... Guide inclined surface 145. …… Guide cylinder

Claims

A spout stopper composed of a spout and a cap that is provided by thermal fusion bonding to the upper surface of the peripheral portion of the pouring hole of the packaging container sealed with a breakable sealing film, the cap having a peripheral wall The spout is provided with a threaded portion on the inner peripheral surface, a guide cylinder portion having a guide inclined surface formed on the outer peripheral surface is suspended at the center position of the lower surface of the top plate, and the spout tube is erected on the flange. A threaded portion with the cap is provided on the outer peripheral surface of the dispensing cylinder, and a plurality of vertical grooves having locking projections on the lower end are provided on the inner peripheral surface. A protective cylinder having a plurality of sliding projections that slide and provided with a plurality of longitudinal grooves on the inner peripheral surface is slidably inserted, and the protective cylinder is attached to the protective cylinder on the outer peripheral surface of the peripheral wall. It has a plurality of sliding projections that slide in the longitudinal grooves of the cylindrical body, and a guide inclined surface with the cap is formed on the inner peripheral surface, and the inner peripheral surface below the guide inclined surface A flow regulating plate having two flow holes at corresponding positions is provided, an opening blade is formed at the lower end of the peripheral wall, and a plurality of corresponding film-removing angles whose tips are below the opening blade are formed inside the opening blade. When the opening cylinder provided on the current plate is slidably inserted and the cap is removed, the protective cylinder protruding into the container breaks the sealing film with the lower opening blade. A spout stopper with a built-in opening blade characterized in that an opening cylinder projecting into a container is housed inside and fixed.

A spout plug composed of a spout and a cap that is provided by thermal fusion bonding to the lower surface of the peripheral edge of the plug attachment hole of the packaging container, wherein the cap is provided with a threaded portion on the inner peripheral surface of the peripheral wall, The spout, in which the guide cylinder portion having a guide inclined surface formed on the outer peripheral surface is suspended at the center position of the bottom surface of the top plate, and the extraction tube is erected on the flange, the cap and the cap on the outer peripheral surface of the extraction tube A plurality of vertical grooves having locking projections at the lower end on the inner peripheral surface, heat sealing a sealing film on the lower surface of the flange, and the spout on the outer peripheral surface. A protective cylinder having a plurality of sliding projections that slide in the vertical grooves and having a plurality of vertical grooves on the inner peripheral surface is slidably inserted, and the outer peripheral surface of the peripheral wall is attached to the protective cylinder. A plurality of sliding protrusions that slide in the longitudinal grooves of the protective cylinder, and a guide inclined surface with the cap is formed on the inner peripheral surface. A rectifying plate having two flow holes at corresponding positions is provided on the lower inner peripheral surface, an opening blade is formed at the lower end of the peripheral wall, and a plurality of correspondences with the tip positioned below the opening blade inside the opening blade When the opening cylinder provided on the current plate is slidably inserted and the cap is removed, the protective cylinder protruding into the container is sealed with the lower opening blade. A spout stopper with a built-in opening blade characterized in that an opening cylinder that breaks the stopper film and protrudes into the container is accommodated inside and fixed.