JP3932580B2 - Outlet plug with built-in opening blade - Google Patents
Outlet plug with built-in opening blade Download PDFInfo
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- JP3932580B2 JP3932580B2 JP29540996A JP29540996A JP3932580B2 JP 3932580 B2 JP3932580 B2 JP 3932580B2 JP 29540996 A JP29540996 A JP 29540996A JP 29540996 A JP29540996 A JP 29540996A JP 3932580 B2 JP3932580 B2 JP 3932580B2
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- spout
- cap
- peripheral surface
- guide slope
- cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/72—Contents-dispensing means
- B65D5/74—Spouts
- B65D5/746—Spouts formed separately from the container
- B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
- B65D5/749—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being removed from the container after the opening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/72—Contents-dispensing means
- B65D5/74—Spouts
- B65D5/746—Spouts formed separately from the container
- B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
- B65D5/748—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being left inside the container after the opening
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
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】
【従来の技術】
従来、液体用紙容器（２０）は、例えば図１３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）を冠着したものであり、注出口栓に開封刃を内蔵するものは、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１３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刃（１３２）を降下させて封止するフィルム（３０）を破断して容器を開封するものであった。
【０００３】
【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液体用紙容器（２０）は、図１３に示すように、注出口栓（１０）の開封刃（１３２）が容器の内側に突出したままになっていると、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危惧があった。
【０００４】
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のなく、また、封止フィルムの破断片が容器内に脱落する危惧のない開封刃を内蔵する注出口栓を提供するものである。
【０００５】
【課題を解決するための手段】
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（３０）れた液体用紙容器（２０）の注出孔に、突設される開封刃（１３２）を内蔵するスパウト（１００）とキャップ（２００）とからなる注出口栓（１０）において、前記キャップ（２００）の天板（２１０）下面に、上方側の外周面が外側に突起する螺旋状の下降用案内斜面（２３２）と、下方側の外周面が外側に突起する螺旋状の上昇用案内斜面（２３３）とを、対応する外周面に同一傾斜で、且つ、前記上昇用案内斜面（２３３）の下端を前記下降用案内斜面（２３２）の下端より下方位置に形成したガイド用内筒（２３０）を垂設し、前記スパウト（１００）の注出筒（１２０）内面に複数の縦溝（１２２）を形成し、この縦溝を摺動する複数の突起（１３１）を上端外周面にもち、下端に開封刃（１３２）を形成し、中心に矢尻状の先端をもつ引掛けピン（１３７）を下方に突設する桟部（１３６）を内側下方に設け、前記ガイド用内筒（２３０）の下降用案内斜面（２３２）と摺接する下方側の内周面が内側に突起する螺旋状の下降用案内斜面（１３４）と、前記ガイド用内筒（２３０）の上昇用案内斜面（２３３）と摺接する上方側の内周面が内側に突起する螺旋状の上昇用案内斜面（１３５）とを内周面に形成した開封用筒体（１３０）を摺動可能に挿着し、前記スパウト（１００）に装着した前記キャップ（２００）を取り外す過程において、前記キャップ（２００）を螺脱方向へ回転すると、降下する前記開封用筒体（１３０）の先端の開封刃（１３２）で前記封止フィルム（３０）を破断し、この破断片（３１）を前記引掛けピン（１３７）で引っ掛け、さらに、前記キャップ（２００）を螺脱方向へ回転して前記キャップ（２００）を取り外したときには、前記開封用筒体（１３０）が前記キャップ（２００）内に収容されて前記スパウト（１００）から分離することを特徴とする開封刃を内蔵する注出口栓（１０）である。
【０００６】
本発明の第２の発明は、図２に示すように、破断可能な封止フィルム（３０）で封止された液体用紙容器（２０）の注出孔に、突設される開封刃（１３２）を内蔵するスパウト（１００）とキャップ（２００）とからなる注出口栓（１０）において、前記スパウト（１００）の注出筒（１２０）内面に複数の縦溝（１２２）を形成し、この縦溝を摺動する複数の突起（１３１）を上端外周面にもち、下端に開封刃（１３２）を形成し、中心に矢尻状の先端をもつ引掛けピン（１３７）を下方に突設する桟部（１３６）を内側下方に設け、下方側の内周面が内側に突起する螺旋状の下降用案内斜面（１３４）と、上方側の内周面が内側に突起する螺旋状の上昇用案内斜面（１３５）とを、対応する内周面に同一傾斜で、且つ、前記上昇用案内斜面（１３５）の上端を前記下降用案内斜面（１３４）の上端より上方位置に形成した開封用筒体（１３０）を摺動可能に挿着し、前記キャップ（２００）の天板（２１０）下面に、前記開封用筒体（１３０）の下降用案内斜面（１３４）と摺接する上方側の外周面が外側に突起する螺旋状の下降用案内斜面（２３２）と、前記開封筒体（１３０）の上昇用案内斜面（１４５）と摺接する下方側の外周面が外側に突起する螺旋状の上昇用案内斜面（２３３）とを外周面に形成したガイド用内筒（２３０）を垂設し、前記スパウト（１００）に装着した前記キャップ（２００）を取り外す過程において、前記キャップ（２００）を螺脱方向へ回転すると、降下する前記開封用筒体（１３０）の先端の開封刃（１３２）で前記封止フィルム（３０）を破断し、この破断片（３１）を前記引掛けピン（１３７）で引っ掛け、さらに、前記キャップ（２００）を螺脱方向へ回転して前記キャップ（２００）を取り外したときには、前記開封用筒体（１３０）が前記キャップ（２００）内に収容されて前記スパウト（１００）から分離することを特徴とする開封刃を内蔵する注出口栓（１０）である。
【０００７】
本発明の第３の発明は、図６に示すように、破断可能な封止フィルム（３０）で封止された液体用紙容器（２０）の注出孔に、突設される開封刃（１３２）を内蔵するスパウト（１００）とキャップ（２００）とからなる注出口栓（１０）において、前記キャップ（２００）の天板（２１０）下面に、上方側の外周面が外側に突起する螺旋状の下降用案内斜面（２３２）と、下方側の外周面が外側に突起する螺旋状の上昇用案内斜面（２３３）とを、対応する外周面に同一傾斜で、且つ、前記上昇用案内斜面（２３３）の下端を前記下降用案内斜面（２３２）の下端より下方位置に形成したガイド用内筒（２３０）を垂設し、前記スパウト（１００）の注出筒（１２０）内面に複数の縦溝（１２２）を形成し、この縦溝を摺動する複数の突起（１４１）を上端外周面にもつ保護リング（１４０）を挿着し、この保護リングの上方に、外周の上端面に前記縦溝（１２２）を摺動する複数の突起（１３１）を設け、下端に欠刃部分（１３３）を設けた開封刃（１３２）を形成し、前記ガイド用内筒（２３０）の下降用案内斜面（２３２）と摺接する下方側の内周面が内側に突起する螺旋状の下降用案内斜面（１３４）と、前記ガイド用内筒（２３０）の上昇用案内斜面（２３３）と摺接する上方側の内周面が内側に突起する螺旋状の上昇用案内斜面（１３５）とを内周面に形成し、上方の径が下方の径より大きい２段の外周をもつ開封用筒体（１３０）を摺動可能に挿着し、前記スパウト（１００）に装着した前記キャップ（２００）を取り外す過程において、前記キャップ（２００）を螺脱方向へ回転すると、降下する前記開封用筒体（１３０）の先端の開封刃（１３２）で前記封止フィルム（３０）を破断し、外周の段差（１３８）により前記保護リング（１４０）を容器内に突出させ、さらに、前記キャップ（２００）を螺脱方向へ回転して前記キャップ（２００）を取り外したときには、前記開封用筒体（１３０）が前記キャップ（２００）内に収容されて前記スパウト（１００）から分離することを特徴とする開封刃を内蔵する注出口栓（１０）である。
【０００８】
本発明の第４の発明は、図７に示すように、破断可能な封止フィルム（３０）で封止された液体用紙容器（２０）の注出孔に、突設される開封刃（１３２）を内蔵するスパウト（１００）とキャップ（２００）とからなる注出口栓（１０）において、前記スパウト（１００）の注出筒（１２０）内面に複数の縦溝（１２２）を形成し、この縦溝を摺動する複数の突起（１４１）を上端外周面にもつ保護リング（１４０）を挿着し、この保護リングの上方に、外周の上端面に前記縦溝（１２２）を摺動する複数の突起（１３１）を設け、下端に欠刃部分（１３３）を設けた開封刃（１３２）を形成し、下方側の内周面が内側に突起する螺旋状の下降用案内斜面（１３４）と、上方側の内周面が内側に突起する螺旋状の上昇用案内斜面（１３５）とを、対応する内周面に同一傾斜で、且つ、前記上昇用案内斜面（１３５）の上端を前記下降用案内斜面（１３４）の上端より上方位置に形成した開封用筒体（１３０）を摺動可能に挿着し、前記キャップ（２００）の天板（２１０）下面に、前記開封用筒体（１３０）の下降用案内斜面（１３４）と摺接する上方側の外周面が外側に突起する螺旋状の下降用案内斜面（２３２）と、前記開封筒体（１３０）の上昇用案内斜面（１３５）と摺接する下方側の外周面が外側に突起する螺旋状の上昇用案内斜面（２３３）とを外周面に形成したガイド用内筒（２３０）を垂設し、前記スパウト（１００）に装着した前記キャップ（２００）を取り外す過程において、前記キャップ（２００）を螺脱方向へ回転すると、降下する前記開封用筒体（１３０）の先端の開封刃（１３２）で前記封止フィルム（３０）を破断し、外周の段差（１３８）により前記保護リング（１４０）を容器内に突出させ、さらに、前記キャップ（２００）を螺脱方向へ回転して前記キャップ（２００）を取り外したときには、前記開封用筒体（１３０）が前記キャップ（２００）内に収容されて前記スパウト（１００）から分離することを特徴とする開封刃を内蔵する注出口栓（１０）である。
【０００９】
本発明の開封刃を内蔵する注出口栓は、キャップの天板から垂設するガイド用内筒に、上方側の外周面が外側に突起する螺旋状の下降用案内斜面と、下方側の外周面が外側に突起する螺旋状の上昇用案内斜面とが、上昇用案内斜面の下端を下降用案内斜面の下端より下方位置に形成して、対応する外周面に同一傾斜で設けられており、一方、スパウトに摺動可能に挿着された開封用筒体には、キャップのガイド用内筒の下降用案内斜面と摺接する下方側の内周面が内側に突起する螺旋状の下降用案内斜面と、キャップのガイド用内筒の上昇用案内斜面と摺接する上方側の内周面が内側に突起する螺旋状の上昇用案内斜面とが内周面に形成されている。このため、スパウトに装着されたキャップを取り外す方向に回転すると、キャップのガイド用内筒の下降用案内斜面と開封用筒体の下降用案内斜面とが摺動し合って、開封用筒体が下方に移動する。そして、開封用筒体が最下方位置に到達したときに、キャップのガイド用内筒の上昇用案内斜面の下端が、開封用筒体の上昇用案内斜面の上端と摺動し合って開封用筒体が上方に移動し始め、キャップがスパウトから取り外されたときには、下端に開封刃を形成する開封用筒体が、キャップ内に収容されてスパウトから分離する。
【００１０】
または、スパウトに摺動可能に挿着された開封用筒体に、下方側の内周面が内側に突起する螺旋状の下降用案内斜面と、上方側の内周面が内側に突起する螺旋状の上昇用案内斜面とが、上昇用案内斜面の上端を下降用案内斜面の上端より上方位置に形成して、対応する内周面に同一傾斜で設けられており、一方、キャップの天板から垂設するガイド用内筒には、開封用筒体の下降用案内斜面と摺接する上方側の外周面が外側に突起する螺旋状の下降用案内斜面と、開封筒体の上昇用案内斜面と摺接する下方側の外周面が外側に突起する螺旋状の上昇用案内斜面とが外周面に形成されている。このため、スパウトに装着されたキャップを取り外す方向に回転すると、キャップのガイド用内筒の下降用案内斜面と開封用筒体の下降用案内斜面とが摺動し合って、開封用筒体が下方に移動する。そして、開封用筒体が最下方位置に到達したときに、開封用筒体の上昇用案内斜面の上端が、キャップのガイド用内筒の上昇用案内斜面の下端と摺動し合って開封用筒体が上方に移動し始め、キャップがスパウトから取り外されたときには、下端に開封刃を形成する開封用筒体が、キャップ内に収容されてスパウトから分離する。
【００１１】
また、開封用筒体の下端に形成する開封刃に欠刃部分を設けない場合には、開封用筒体の内側下方に桟部を設けて、その桟部の中心部から引掛けピンを下方に突設する。スパウトに装着されたキャップを取り外す方向に回転すると、開封用筒体が下方へ移動し、まず、引掛けピンの先端が封止フィルムに突き刺さり、次に、開封刃で封止フィルムが破断される。このため、封止フィルムの破断片が引掛けピンの先端に引っ掛かって保持され、キャップがスパウトから取り外されたときには、開封用筒体と一緒に封止フィルムの破断片もキャップ内に収容されるので、破断片が容器内に脱落することがない。
【００１２】
また、開封用筒体の下端に形成する開封刃に欠刃部分を設ける場合には、スパウトの注出筒内面に、まず、保護リングを摺動可能に挿着し、次に、この保護リングの上方に、上方の径が下方の径より大きい２段の外周をもつ開封用筒体を摺動可能に挿着されている。そして、スパウトに装着されたキャップを取り外す方向に回転すると、開封用筒体が下方へ移動して下端に形成された開封刃で封止フィルムが破断し、次に、開封用筒体の外周の段差により保護リングの上端が押されて保護リングが容器内へ突出する。このため、開封用筒体の下方は、保護リングを内面と摺動し、封止フィルムの破断された縁部を、開封用筒体が擦ることがなく、未破断部で繋がって垂下する破断片が、容器内に脱落することがない。
【００１３】
【発明の実施の形態】
本発明の開封刃を内蔵する注出口栓（１０）は、図１に示すように、破断可能な封止フィルム（３０）で封止された液体用紙容器（２０）の注出孔に突設されるものであり、開封刃（１３２）を下端のもつ開封用筒体（１３０）を摺動可能に挿着したスパウト（１００）と、開封用筒体（１３０）を摺動させるガイド用内筒（２３０）を天板（２１０）下面に垂設したキャップ（２００）とから構成される。これら構成材料は、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したものである。なお、口栓の液体用紙容器への取り付けは、例えば、スパウトの下方フランジ（１１０）の下面を、容器の頂部傾斜板の上面に超音波シール法などにより熱融着するものである。
【００１４】
そして、まず、欠刃部分を設けない開封刃を内蔵する注出口栓においては、キャップ（２００）は、図１に示すように、天板（２１０）下面にガイド用内筒（２３０）を垂設し、このガイド用内筒の外周面に、上方側の外周面が外側に突起する螺旋状の下降用案内斜面（２３２）と、下方側の外周面が外側に突起する螺旋状の上昇用案内斜面（２３３）とを、通常は左側傾斜の同一角度で対応させて設けるものであり、また、上昇用案内斜面（２３３）の下端を下降用案内斜面（２３２）の下端より下方位置に形成するものである。なお、キャップ（２００）の周壁（２２０）内面には、スパウト（１００）と螺合する螺旋状の螺合部（２２１）を設けるものである。
【００１５】
そして、スパウト（１００）は、フランジ（１１０）に突設する注出筒（１２０）内面に通常は８個の縦溝（１２２）を形成し、この縦溝を摺動する通常は４個の突起（１３１）を上端外周面にもち、下端に欠刃部分を設けない開封刃（１３２）を形成し、内側下方に桟部（１３６）を設けて、その桟部の中心部から引掛けピン（１３７）の矢尻状の先端が開封刃の先端より下方になるように突設させ、内周面に、ガイド用内筒（２３０）の下降用案内斜面（２３２）と摺接する下方側の内周面が内側に突起する螺旋状の下降用案内斜面（１３４）と、ガイド用内筒（２３０）の上昇用案内斜面（２３３）と摺接する上方側の内周面が内側に突起する螺旋状の上昇用案内斜面（１３５）とを設けた開封用筒体（１３０）を摺動可能に挿着するものである。なお、スパウト（１００）の注出筒（１２０）外面には、キャップ（２００）と螺合する螺旋状の螺合部（１２１）を設けるものである。
【００１６】
そして、スパウト（１００）に装着したキャップ（２００）を取り外すために左回転させると、開封用筒体（１３０）が下方に移動して、図３に示すように、まず、引掛けピン（１３７）の矢尻状の先端が封止フィルム（３０）に突き刺さり、次に、図４に示すように、開封刃（１３２）が封止フィルム（３０）を破断し、この破断片（３１）は、引掛けピン（１３７）の矢尻状の先端に引っ掛かって保持される。さらに、キャップを左回転させると、開封用筒体（１３０）が上方に移動して、キャップがスパウトから取り外されたときには、図５に示すように、封止フィルムの破断片（３１）を保持した開封用筒体（１３０）がキャップ（２００）内に収容される。
【００１７】
このため、開封した液体用紙容器は、図１１に示すように、容器内に開封用筒体の開封刃が突出することがなく、使用済みの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のなく、また、封止フィルムの破断片が容器内に脱落する危惧もない。
【００１８】
なお、欠刃部分を設けない開封刃を内蔵する注出口栓において、図２に示すように、スパウト（１００）に挿着する開封用筒体（１３０）の内周面に形成する上方側の内周面が内側に突起する螺旋状の上昇用案内斜面（１３５）の上端を、下方側の内周面が内側に突起する螺旋状の下降用案内斜面（１３４）の上端より上方位置に形成し、キャップのガイド用内筒の外周面に、開封用筒体（１３０）の下降用案内斜面（１３４）と摺接する上方側の外周面が外側に突起する螺旋状の下降用案内斜面（２３２）と、開封筒体（１３０）の上昇用案内斜面（１４５）と摺接する下方側の外周面が外側に突起する螺旋状の上昇用案内斜面（２３３）とを形成したものでもよい。
【００１９】
次に、欠刃部分を設けた開封刃を内蔵する注出口栓においては、キャップ（２００）は、図６に示すように、天板（２１０）下面にガイド用内筒（２３０）を垂設し、このガイド用内筒の外周面に、上方側の外周面が外側に突起する螺旋状の下降用案内斜面（２３２）と、下方側の外周面が外側に突起する螺旋状の上昇用案内斜面（２３３）とを、通常は左側傾斜の同一角度で対応させて設けるものであり、また、上昇用案内斜面（２３３）の下端を下降用案内斜面（２３２）の下端より下方位置に形成するものである。なお、キャップ（２００）の周壁（２２０）内面には、スパウト（１００）と螺合する螺旋状の螺合部（２２１）を設けるものである。
【００２０】
そして、スパウト（１００）は、フランジ（１１０）に突設する注出筒（１２０）内面に通常は８個の縦溝（１２２）を形成し、この縦溝を摺動する通常は４個の突起（１４１）を上端外周面にもつ保護リング（１４０）を挿着し、この保護リングの上から、外周の上端面に縦溝（１２２）を摺動する通常は４個の突起（１４１）を設け、下端に欠刃部分（１３３）を設けた開封刃（１３２）を形成し、内周面に、ガイド用内筒（２３０）の下降用案内斜面（２３２）と摺接する下方側の内周面が内側に突起する螺旋状の下降用案内斜面（１３４）と、ガイド用内筒（２３０）の上昇用案内斜面（２３３）と摺接する上方側の内周面が内側に突起する螺旋状の上昇用案内斜面（１３５）とを形成し、上方の径が下方の径より大きい２段の外周をもつ開封用筒体（１３０）を摺動可能に挿着するものである。なお、スパウト（１００）の注出筒（１２０）外面には、キャップ（２００）と螺合する螺旋状の螺合部（１２１）を設けるものである。
【００２１】
そして、スパウト（１００）に装着したキャップ（２００）を取り外すために左回転させると、開封用筒体（１３０）が下方に移動して、図８に示すように、まず、開封刃（１３２）が封止フィルム（３０）を破断し、この破断片（３１）は、未破断部で封止フィルムと繋がって容器内に垂下し、次に、図９に示すように、開封用筒体（１３０）の外周の段差（１３８）により保護リング（１４０）の上端が押されて保護リングが容器内へ突出する。さらに、キャップを左回転させると、開封用筒体（１３０）が上方に移動して、キャップがスパウトから取り外されたときには、図１０に示すように、開封用筒体（１３０）がキャップ（２００）内に収容される。
【００２２】
このため、開封した液体用紙容器は、図１２に示すように、容器内に保護リング（１４０）が突出しているだけであり、使用済みの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のなく、また、封止フィルムに繋がる破断片は、摺動する開封用筒体から保護リングで保護されているため、容器内に脱落する危惧もない。
【００２３】
なお、欠刃部分を設けた開封刃を内蔵する注出口栓において、図７に示すように、スパウト（１００）に挿着する開封用筒体（１３０）の内周面に形成する上方側の内周面が内側に突起する螺旋状の上昇用案内斜面（１３５）の上端を、下方側の内周面が内側に突起する螺旋状の下降用案内斜面（１３４）の上端より上方位置に形成し、キャップのガイド用内筒の外周面に、開封用筒体（１３０）の下降用案内斜面（１３４）と摺接する上方側の外周面が外側に突起する螺旋状の下降用案内斜面（２３２）と、開封筒体（１３０）の上昇用案内斜面（１４５）と摺接する下方側の外周面が外側に突起する螺旋状の上昇用案内斜面（２３３）とを形成したものでもよい。
【００２４】
また、破断可能な封止フィルム（３０）を、液体用紙容器（２０）の注出孔に設けるのではなく、スパウト下方のフランジ（１１０）の下面に設け、スパウトは注出孔の内側から嵌め込み、フランジ（１１０）の上面と容器の内面とを熱融着する構造としても良い。
【００２５】
【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液体用紙容器は、使用後の分別回収のために容器を解体しても、開封刃がキャップ内に収容され、従来のように容器の内側に突出する開封刃がないため、手などに怪我をする危惧がない。
【００２６】
また、開封刃で破断された破断片は、引掛けピンで排除されるか又は保護リングで保護されて容器内に脱落することがない。
【図面の簡単な説明】
【図１】 液体用紙容器に取り付けた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】 液体用紙容器に取り付けた本発明の他の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】 図１及び図２に示す実施例において、キャップを取り外す過程で、開封用筒体が下降して引掛けピンが封止フィルムに突き刺さったときの状態を示す説明図である。
【図４】 図１及び図２に示す実施例において、キャップを取り外す過程で、開封用筒体が下降して開封刃が封止フィルムを破断したときの状態を示す説明図である。
【図５】 図１及び図２に示す実施例において、スパウトから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６】 液体用紙容器に取り付けた本発明の他の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７】 液体用紙容器に取り付けた本発明の他の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８】 図６及び図７に示す実施例において、キャップを取り外す過程で、開封用筒体が下降して開封刃が封止フィルムを破断したときの状態を示す説明図である。
【図９】 図６及び図７に示す実施例において、キャップを取り外す過程で、保護リングが容器内に突出したときの状態を示す説明図である。
【図１０】 図６及び図７に示す実施例において、スパウトから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１１】 図１及び図２に示す実施例において、液体用紙容器を開封したときの注出口栓の状態を示す説明図である。
【図１２】 図６及び図７に示す実施例において、液体用紙容器を開封したときの注出口栓の状態を示す説明図である。
【図１３】 従来の開封刃を内蔵する注出口栓を取り付けた液体用紙容器において、容器を開封したときの注出口栓の状態を示す説明図である。
【符号の説明】
１０……注出口栓
２０……液体用紙容器
２１……頂部傾斜板
３０……封止フィルム又はフィルム
３１……破断片
４０……内容物
１００……スパウト
１１０……フランジ
１２０……注出筒
１２１，２２１……螺合部
１２２……縦溝
１３０……開封用筒体
１３１，１４１……突起
１３２……開封刃
１３３……欠刃部
１３４，２３２……下降用案内斜面
１３５，２３３……上昇用案内斜面
１３６……桟部
１３７……引掛けピン
１３８……段差
１４０……保護リング
２００……キャップ
２１０……天板
２１１……封止リング
２２０……周壁
２３０……ガイド用内筒[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a spout stopper having a built-in opening blade protruding from the top of a liquid paper container used for sake, fruit juice beverages, seasonings, oils, liquid detergents and the like.
[0002]
[Prior art]
Conventionally, as shown in FIG. 13, for example, the liquid paper container (20) has a rectangular body, and the gable roof-shaped top inclined plate (21) has a spout plug for ease of pouring. What protruded (10) was used widely. This spout stopper is a spout (100) (outlet tool) with a cap (200), and a spout having a built-in opening blade is disclosed in, for example, Japanese Utility Model Publication No. 5-35058. There is something that was done. 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. 13, when the contents are poured out, the cap ( 00) When removing rotate the was achieved by rotation of the cap is lowered the opening edge (132) to open the container by breaking the film (30) and sealed.
[0003]
[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, in the liquid paper container (20) to which the above-described conventional opening blade is incorporated, as shown in FIG. 13, the opening blade (132) of the outlet plug (10) protrudes inside the container. If left untreated, there was a risk of hand injury when the container was disassembled and collected separately.
[0004]
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. It is an object of the present invention to provide a spout stopper with a built-in opening blade that does not cause a risk of injury and that does not cause a broken piece of the sealing film to fall into the container.
[0005]
[Means for Solving the Problems]
First of the present invention 1 As shown in FIG. 1, the spout (100) has a built-in opening blade (132) projecting into a pouring hole of a liquid paper container (20) having a ruptureable sealing film (30). In the spout stopper (10) consisting of a cap and a cap (200), a spiral descent guide slope (232) on the lower surface of the top plate (210) of the cap (200) with an upper outer peripheral surface protruding outward. And a spiral rising guide slope (233) having a lower outer peripheral surface projecting outward, and the lower end of the rising guide slope (233) having the same inclination as the corresponding outer peripheral face and the lower end of the rising guide slope (233). A guide inner cylinder (230) formed below the lower end of the guide slope (232) is suspended, and a plurality of vertical grooves (122) are formed on the inner surface of the spout (100) of the spout cylinder (120), A plurality of protrusions (131) sliding in the longitudinal groove are arranged at the outer periphery of the upper end. To have, opened to form a blade (132) at the lower end, the center With an arrowhead tip A crosspiece (136) for projecting the hook pin (137) downward is provided on the inner lower side, and the inner peripheral surface on the lower side in sliding contact with the descending guide slope (232) of the inner cylinder for guide (230) is on the inner side. And a spiral descending guide slope (134) projecting inward and an upward inner peripheral surface in sliding contact with the ascending guide slope (233) of the guide inner cylinder (230) projecting inward. In the process of removing the cap (200) attached to the spout (100) by slidably inserting the opening cylinder (130) formed on the inner peripheral surface with the guide slope (135), When the cap (200) is rotated in the screwing direction, The sealing film (30) is broken with the opening blade (132) at the tip of the lowering cylinder (130) that descends, and the broken piece (31) is hooked with the hook pin (137), Further, the cap (200) is rotated in the screwing direction. The spout plug with a built-in opening blade, wherein when the cap (200) is removed, the opening cylinder (130) is accommodated in the cap (200) and separated from the spout (100). (10).
000 6 ]
First of the present invention 2 As shown in FIG. 2, the spout has a built-in opening blade (132) projecting into the pouring hole of the liquid paper container (20) sealed with a breakable sealing film (30). In the spout stopper (10) comprising the (100) and the cap (200), a plurality of longitudinal grooves (122) are formed on the inner surface of the spout (100) of the spout (100), and the longitudinal grooves slide. Have a plurality of protrusions (131) on the outer peripheral surface of the upper end and an opening blade (132) at the lower end. With an arrowhead tip A crosspiece (136) for projecting the hook pin (137) downward is provided on the inner lower side, a spiral lowering guide slope (134) with the inner peripheral surface on the lower side protruding inward, and an inner side on the upper side. The spiral rising guide slope (135) whose peripheral surface protrudes inward is the same slope as the corresponding inner peripheral surface, and the upper end of the rising guide slope (135) is the lowering guide slope (134). ) Is slidably inserted into the opening cylinder (130) formed above the upper end of the cap (200), and the opening cylinder (130) is lowered on the lower surface of the top plate (210) of the cap (200). A spiral descending guide slope (232) projecting outward on the outer peripheral surface in sliding contact with the guide slope (134), and a lower side in sliding contact with the raising guide slope (145) of the unsealed cylinder (130). Remove the spiral rising guide slope (233) whose outer peripheral surface protrudes outward And vertically guide the tube which is formed on a surface of (230), in the course of removing the cap (200) mounted on said spout (100), When the cap (200) is rotated in the screwing direction, The sealing film (30) is broken with the opening blade (132) at the tip of the lowering cylinder (130) that descends, and the broken piece (31) is hooked with the hook pin (137), Further, the cap (200) is rotated in the screwing direction. The spout plug with a built-in opening blade, wherein when the cap (200) is removed, the opening cylinder (130) is accommodated in the cap (200) and separated from the spout (100). (10).
000 7 ]
First of the present invention 3 As shown in FIG. 6, the spout has a built-in opening blade (132) projecting into the pouring hole of the liquid paper container (20) sealed with a breakable sealing film (30). In the spout stopper (10) comprising the cap (200) and the cap (200), a spiral descending guide slope with the upper outer peripheral surface protruding outwardly on the lower surface of the top plate (210) of the cap (200). (232) and the spiral rising guide slope (233) whose outer peripheral surface protrudes outward, and the corresponding outer peripheral surface has the same inclination and the lower end of the rising guide slope (233). A guide inner cylinder (230) formed below the lower end of the descending guide slope (232) is suspended, and a plurality of vertical grooves (122) are formed on the inner surface of the spout cylinder (120) of the spout (100). A plurality of protrusions (141) that are formed and slide in the longitudinal grooves are formed. A protective ring (140) having an end outer peripheral surface is inserted, and a plurality of protrusions (131) sliding on the vertical groove (122) are provided on the upper end surface of the outer periphery above the protective ring, and a missing blade is provided at the lower end. A spiral descent in which an opening blade (132) provided with a portion (133) is formed, and an inner peripheral surface on the lower side that is in sliding contact with the descent guide slope (232) of the guide inner cylinder (230) protrudes inward. A guide slope (134) and a spiral rise guide slope (135) projecting inwardly on the upper inner peripheral surface in sliding contact with the lift guide slope (233) of the guide inner cylinder (230). The cap (200) formed on the inner peripheral surface and slidably inserted into the opening cylinder (130) having a two-step outer periphery whose upper diameter is larger than the lower diameter, and attached to the spout (100). ) In the process of removing When the cap (200) is rotated in the screwing direction, The sealing film (30) is broken by the opening blade (132) at the tip of the lowering cylinder (130) that descends, and the protective ring (140) is protruded into the container by the outer circumferential step (138), Further, the cap (200) is rotated in the screwing direction. The spout plug with a built-in opening blade, wherein when the cap (200) is removed, the opening cylinder (130) is accommodated in the cap (200) and separated from the spout (100). (10).
000 8 ]
First of the present invention 4 As shown in FIG. 7, the spout has a built-in opening blade (132) projecting into the pouring hole of the liquid paper container (20) sealed with a breakable sealing film (30). In the spout stopper (10) comprising the (100) and the cap (200), a plurality of longitudinal grooves (122) are formed on the inner surface of the spout (100) of the spout (100), and the longitudinal grooves slide. A protective ring (140) having a plurality of protrusions (141) on the outer peripheral surface of the upper end is inserted, and a plurality of protrusions (131) sliding the vertical groove (122) on the upper end surface of the outer periphery above the protective ring. ), An opening blade (132) having a lower edge portion (133) at the lower end is formed, a spiral lowering guide slope (134) with an inner peripheral surface on the lower side protruding inward, and an upper side A spiral rising guide slope (135) having an inner peripheral surface projecting inward. An opening cylinder (130) having the same inclination on the inner peripheral surface and having the upper end of the ascending guide slope (135) formed above the upper end of the descending guide slope (134) is slidably inserted. A spiral descent in which the outer peripheral surface on the upper side that slides on the lower guide slope (134) of the opening cylinder (130) protrudes outward on the lower surface of the top plate (210) of the cap (200). The guide slope (232) for lifting and the spiral guide slope (233) for spiral rise with the outer peripheral surface on the lower side in sliding contact with the guide slope for raising (135) of the opening cylinder (130) projecting outward In the process of removing the cap (200) attached to the spout (100) by suspending the guide inner cylinder (230) formed on the spout (100), When the cap (200) is rotated in the screwing direction, The sealing film (30) is broken by the opening blade (132) at the tip of the lowering cylinder (130) that descends, and the protective ring (140) is protruded into the container by the outer circumferential step (138), Further, the cap (200) is rotated in the screwing direction. The spout plug with a built-in opening blade, wherein when the cap (200) is removed, the opening cylinder (130) is accommodated in the cap (200) and separated from the spout (100). (10).
000 9 ]
The spout plug incorporating the opening blade of the present invention includes a guide inner cylinder suspended from the top plate of the cap, a spiral descending guide slope with the upper outer peripheral surface protruding outward, and a lower outer periphery. A spiral rising guide slope whose surface protrudes outwardly, the lower end of the rising guide slope is formed at a position below the lower end of the lowering guide slope, and is provided on the corresponding outer peripheral surface with the same slope, On the other hand, the unsealing cylinder that is slidably inserted into the spout has a spiral lowering guide in which the lower inner peripheral surface that slides in contact with the lowering guide slope of the inner guide cylinder of the cap protrudes inward. The inner peripheral surface is formed with a slope and a spiral raising guide slope whose inner peripheral surface on the upper side that is in sliding contact with the rising guide inclined surface of the guide inner cylinder of the cap protrudes inward. For this reason, when the cap mounted on the spout is rotated in the direction to remove, the lowering guide slope of the guide inner cylinder of the cap and the lowering guide slope of the opening cylinder slide to each other, and the opening cylinder Move down. When the opening cylinder reaches the lowermost position, the lower end of the rising guide slope of the guide inner cylinder of the cap slides against the upper end of the rising guide slope of the opening cylinder for opening. When the cylinder starts to move upward and the cap is removed from the spout, the opening cylinder forming the opening blade at the lower end is accommodated in the cap and separated from the spout.
00 10 ]
Alternatively, the unsealing cylinder that is slidably inserted into the spout has a spiral lowering guide slope with the lower inner peripheral surface protruding inward and a spiral with the upper inner peripheral surface protruding inward. The upper guide slope is formed at a position above the upper end of the lower guide slope and is provided on the corresponding inner peripheral surface with the same slope, while the top plate of the cap The guide inner cylinder that hangs from the spiral includes a spiral lowering guide slope projecting outward from the upper outer peripheral surface that is in sliding contact with the lowering guide slope of the opening cylinder, and an upward guide slope of the opening cylinder The lower outer peripheral surface that is in sliding contact with the outer surface is formed on the outer peripheral surface with a spiral guide slope for raising. For this reason, when the cap mounted on the spout is rotated in the direction to remove, the lowering guide slope of the guide inner cylinder of the cap and the lowering guide slope of the opening cylinder slide to each other, and the opening cylinder Move down. When the opening cylinder reaches the lowermost position, the upper end of the rising guide slope of the opening cylinder slides against the lower end of the rising guide slope of the guide inner cylinder of the cap. When the cylinder starts to move upward and the cap is removed from the spout, the opening cylinder forming the opening blade at the lower end is accommodated in the cap and separated from the spout.
00 11 ]
Also, if the opening blade formed at the lower end of the opening cylinder is not provided with a notch portion, a crosspiece is provided inside the opening cylinder and the hook pin is moved downward from the center of the crosspiece. To project. When the cap mounted on the spout is rotated in the direction of removing, the opening cylinder moves downward, the tip of the hook pin pierces the sealing film, and then the sealing film is broken by the opening blade. . For this reason, the broken piece of the sealing film is hooked and held at the tip of the hook pin, and when the cap is removed from the spout, the broken piece of the sealing film is also accommodated in the cap together with the opening cylinder. Therefore, the broken piece does not fall into the container.
00 12 ]
In addition, when providing a missing blade portion on the opening blade formed at the lower end of the opening cylinder, first, a protective ring is slidably attached to the inner surface of the spout tube, and then this protective ring. An opening cylinder having a two-step outer periphery whose upper diameter is larger than the lower diameter is slidably inserted into the upper part. Then, when the cap attached to the spout is rotated in the direction to remove, the opening cylinder moves downward, the sealing film is broken by the opening blade formed at the lower end, and then the outer periphery of the opening cylinder The upper end of the protective ring is pushed by the step, and the protective ring protrudes into the container. For this reason, below the opening cylinder, the protective ring slides on the inner surface, and the broken edge of the sealing film is not rubbed by the opening cylinder, but is broken by being joined by the unbroken portion. Fragments do not fall into the container.
00 13 ]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, the spout stopper (10) incorporating the opening blade of the present invention protrudes from the spout hole of the liquid paper container (20) sealed with a breakable sealing film (30). A spout (100) in which an opening cylinder (130) having a lower end of an opening blade (132) is slidably inserted, and an inner guide for sliding the opening cylinder (130) It is comprised from the cap (200) which suspended the pipe | tube (230) on the lower surface of the top plate (210). These constituent materials are produced by an injection molding method using a thermoplastic resin such as polyethylene or polypropylene. The stopper is attached to the liquid paper container by, for example, heat-sealing the lower surface of the lower flange (110) of the spout to the upper surface of the top inclined plate of the container by an ultrasonic sealing method or the like.
00 14 ]
First, in the spout plug with a built-in unsealed blade that does not have a notch portion, the cap (200) hangs the guide inner cylinder (230) on the lower surface of the top plate (210) as shown in FIG. And a spiral descent guide slope (232) whose upper outer peripheral surface protrudes outward and a spiral ascending protrusion whose lower outer peripheral surface protrudes outward on the outer peripheral surface of the guide inner cylinder. The guide slope (233) is usually provided so as to correspond to the same angle of the left slope, and the lower end of the ascending guide slope (233) is formed below the lower end of the descending guide slope (232). To do. In addition, a spiral threaded portion (221) that is threadedly engaged with the spout (100) is provided on the inner surface of the peripheral wall (220) of the cap (200).
00 15 ]
The spout (100) usually has eight vertical grooves (122) formed on the inner surface of the extraction tube (120) projecting from the flange (110), and usually four pieces slide in the vertical grooves. An opening blade (132) having a protrusion (131) on the outer peripheral surface at the upper end and not provided with a notch portion at the lower end is formed, and a crosspiece (136) is provided on the inner lower side, and a hook pin is provided from the center of the crosspiece (137) is protruded so that the tip of the arrowhead shape is below the tip of the opening blade, and the inner peripheral surface of the lower inner side that is in sliding contact with the lower guide slope (232) of the guide inner cylinder (230) A spiral descent guide slope (134) whose peripheral surface protrudes inward and a spiral shape whose upper inner peripheral surface slidably in contact with the upward guide slope (233) of the guide inner cylinder (230) protrudes inward. The opening cylinder (130) provided with the rising guide slope (135) is slidably inserted. Than it is. In addition, the helical threading part (121) screwed with a cap (200) is provided in the outer surface of the extraction pipe | tube (120) of a spout (100).
00 16 ]
When the cap (200) attached to the spout (100) is rotated counterclockwise to remove it, the opening cylinder (130) moves downward, and as shown in FIG. ) Pierce the sealing film (30), and then, as shown in FIG. 4, the unsealing blade (132) breaks the sealing film (30), and this broken piece (31) The hook pin (137) is hooked and held at the tip of the arrowhead. When the cap is further rotated counterclockwise, the opening cylinder (130) moves upward, and when the cap is removed from the spout, the broken piece (31) of the sealing film is held as shown in FIG. The opened cylinder (130) is accommodated in the cap (200).
00 17 ]
For this reason, as shown in FIG. 11, the unsealed liquid paper container has a spout when the used container is disassembled and collected separately without the opening blade of the opening cylinder projecting into the container. There is no risk of injury to the hand or the like with the opening blade of the stopper, and there is no risk of broken pieces of the sealing film falling into the container.
00 18 ]
As shown in FIG. 2, in the spout plug with a built-in opening blade that does not have a notch portion, as shown in FIG. 2, the upper side formed on the inner peripheral surface of the opening cylinder (130) to be inserted into the spout (100). The upper end of the spiral rising guide slope (135) with the inner peripheral surface protruding inward is formed above the upper end of the spiral lowering guide slope (134) with the lower inner peripheral surface protruding inward. Then, on the outer peripheral surface of the guide guide inner cylinder of the cap, the spiral lowering guide slope (232) in which the upper outer peripheral surface slidably contacting the lower guide slope (134) of the opening cylinder (130) protrudes outward. ) And a spiral rising guide slope (233) whose outer peripheral surface on the lower side in sliding contact with the rising guide slope (145) of the unsealed cylinder (130) protrudes outward.
00 19 ]
Next, in the spout plug with a built-in opening blade provided with a cut-off portion, the cap (200) is provided with a guide inner tube (230) suspended from the lower surface of the top plate (210) as shown in FIG. On the outer peripheral surface of the guide inner cylinder, there is a spiral descending guide slope (232) whose upper outer peripheral surface protrudes outward, and a spiral ascending guide whose lower outer peripheral surface protrudes outward. The slope (233) is usually provided at the same angle of the left slope, and the lower end of the ascending guide slope (233) is formed at a position below the lower end of the descending guide slope (232). Is. In addition, a spiral threaded portion (221) that is threadedly engaged with the spout (100) is provided on the inner surface of the peripheral wall (220) of the cap (200).
00 20 ]
The spout (100) usually has eight vertical grooves (122) formed on the inner surface of the extraction tube (120) projecting from the flange (110), and usually four pieces slide in the vertical grooves. A protective ring (140) having a protrusion (141) on the outer peripheral surface of the upper end is inserted, and usually four protrusions (141) slide on the vertical groove (122) on the upper end surface of the outer periphery from above the protective ring. An opening blade (132) having a lower edge portion (133) at the lower end is formed, and an inner side of the lower side that is in sliding contact with the lower guide slope (232) of the guide inner cylinder (230) is formed on the inner peripheral surface. A spiral descent guide slope (134) whose peripheral surface protrudes inward and a spiral shape whose upper inner peripheral surface slidably in contact with the upward guide slope (233) of the guide inner cylinder (230) protrudes inward. And a two-step outer periphery having an upper diameter larger than a lower diameter. Opening accommodating cylinder having a (130) in which slidably inserted. In addition, the helical threading part (121) screwed with a cap (200) is provided in the outer surface of the extraction pipe | tube (120) of a spout (100).
00 21 ]
When the cap (200) attached to the spout (100) is rotated counterclockwise to remove it, the opening cylinder (130) moves downward, and as shown in FIG. 8, first the opening blade (132) Breaks the sealing film (30), and this broken piece (31) is connected to the sealing film at the unbroken portion and hangs down in the container. Next, as shown in FIG. 130), the upper end of the protective ring (140) is pushed by the step (138) on the outer periphery, and the protective ring protrudes into the container. Further, when the cap is rotated counterclockwise, the opening cylinder (130) moves upward, and when the cap is removed from the spout, the opening cylinder (130) is moved to the cap (200) as shown in FIG. ).
00 22 ]
For this reason, as shown in FIG. 12, the opened liquid paper container has only a protective ring (140) protruding inside the container, and the spout plug is used when the used container is disassembled and separated and collected. There is no risk of injury to the hand, etc. with the opening blade, and the broken pieces connected to the sealing film are protected by a protective ring from the sliding opening cylinder, so there is no risk of falling into the container .
00 23 ]
As shown in FIG. 7, in the spout plug incorporating the opening blade provided with the notch portion, as shown in FIG. 7, the upper side formed on the inner peripheral surface of the opening cylinder (130) to be inserted into the spout (100). The upper end of the spiral rising guide slope (135) with the inner peripheral surface protruding inward is formed above the upper end of the spiral lowering guide slope (134) with the lower inner peripheral surface protruding inward. Then, on the outer peripheral surface of the guide guide inner cylinder of the cap, the spiral lowering guide slope (232) in which the upper outer peripheral surface slidably contacting the lower guide slope (134) of the opening cylinder (130) protrudes outward. ) And a spiral rising guide slope (233) whose outer peripheral surface on the lower side in sliding contact with the rising guide slope (145) of the unsealed cylinder (130) protrudes outward.
00 24 ]
Further, the breakable sealing film (30) is not provided in the pouring hole of the liquid paper container (20), but is provided on the lower surface of the flange (110) below the spout, and the spout is fitted from the inside of the pouring hole. The upper surface of the flange (110) and the inner surface of the container may be heat-sealed.
00 25 ]
【The invention's effect】
The liquid paper container equipped with the spout stopper with the opening blade of the present invention attached thereto is accommodated in the cap even if the container is disassembled for separation and collection after use. There is no risk of injury to the hands, etc. because there are no opening blades protruding.
00 26 ]
Moreover, the broken piece broken by the opening blade is excluded by the hook pin or protected by the protective ring and does not fall into the container.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing the structure of a spout stopper with a built-in opening blade of an embodiment of the present invention attached to a liquid paper container.
FIG. 2 is an explanatory view showing a structure of a spout stopper that incorporates an opening blade according to another embodiment of the present invention attached to a liquid paper container.
FIG. 3 is an explanatory view showing a state in the embodiment shown in FIGS. 1 and 2 when the opening cylinder is lowered and the hook pin pierces the sealing film in the process of removing the cap.
4 is an explanatory view showing a state when the opening cylinder is lowered and the opening blade breaks the sealing film in the process of removing the cap in the embodiment shown in FIGS. 1 and 2. FIG.
FIG. 5 is an explanatory view showing a state when the cap is removed from the spout in the embodiment shown in FIGS. 1 and 2;
FIG. 6 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 attached to a liquid paper container.
FIG. 7 is an explanatory view showing the structure of a spout stopper with a built-in opening blade attached to a liquid paper container according to another embodiment of the present invention.
FIG. 8 is an explanatory diagram showing a state when the opening cylinder is lowered and the opening blade breaks the sealing film in the process of removing the cap in the embodiment shown in FIGS. 6 and 7;
FIG. 9 is an explanatory view showing a state when the protective ring protrudes into the container in the process of removing the cap in the embodiment shown in FIGS. 6 and 7;
10 is an explanatory view showing a state when the cap is removed from the spout in the embodiment shown in FIGS. 6 and 7. FIG.
11 is an explanatory view showing a state of the spout stopper when the liquid paper container is opened in the embodiment shown in FIGS. 1 and 2. FIG.
12 is an explanatory view showing a state of the spout stopper when the liquid paper container is opened in the embodiment shown in FIGS. 6 and 7. FIG.
FIG. 13 is an explanatory view showing a state of the spout stopper when the container is opened in a liquid paper container to which a spout stopper incorporating a conventional opening blade is attached.
[Explanation of symbols]
10 ... spout stopper
20 …… Liquid paper container
21 …… Top inclined plate
30: Sealing film or film
31 ... Broken fragment
40 …… Contents
100 …… Spout
110 …… Flange
120 …… Pouring pipe
121, 221 ... threaded part
122 …… Vertical groove
130 …… Cylinder for opening
131, 141 …… Protrusions
132 …… Opening blade
133 ...... Cut edge part
134,232 ... Guide slope for descent
135,233 …… Guide slope for ascending
136 …… Peak
137 …… Hook pin
138 …… Step
140 …… Protective ring
200 …… Cap
210 …… Top plate
211 …… Sealing ring
220 …… Surrounding wall
230 …… Guide inner cylinder
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29540996A JP3932580B2 (en) | 1996-11-07 | 1996-11-07 | Outlet plug with built-in opening blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29540996A JP3932580B2 (en) | 1996-11-07 | 1996-11-07 | Outlet plug with built-in opening blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10139057A JPH10139057A (en) | 1998-05-26 |
| JP3932580B2 true JP3932580B2 (en) | 2007-06-20 |
Family
ID=17820240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29540996A Expired - Fee Related JP3932580B2 (en) | 1996-11-07 | 1996-11-07 | Outlet plug with built-in opening blade |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3932580B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2424538A1 (en) | 2000-10-03 | 2003-04-02 | Terxo Ag | Plastic closing device with a piercing element |
| FR2968280B1 (en) * | 2010-12-07 | 2012-12-28 | Procap France | PERCUTOR CAP FOR AUTOMATIC CUTTING OF A CLOSURE OPENER OF A CONTAINER |
| CN104015996B (en) * | 2013-03-01 | 2016-12-28 | 宜昌崟锦包装有限责任公司 | A kind of positive sealing bottle cap |
-
1996
- 1996-11-07 JP JP29540996A patent/JP3932580B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10139057A (en) | 1998-05-26 |
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