JP3607002B2

JP3607002B2 - Container spout forming device

Info

Publication number: JP3607002B2
Application number: JP13285596A
Authority: JP
Inventors: デュバンダーパトリック; モックエルマー; クロフェンスタインアンドレ
Original assignee: テトララバルホールデイングスエフイナンスソシエテアノニム
Priority date: 1996-04-30
Filing date: 1996-04-30
Publication date: 2005-01-05
Anticipated expiration: 2016-04-30
Also published as: AU2922897A; EP1023228B1; EP1023228A4; TW342372B; DE69728449T2; DE69728449D1; WO1997041040A1; EP1023228A1; JPH09301357A

Description

【０００１】
【発明の属する技術分野】
本発明は、紙又はプラスチックを主たる素材として形成された、主として液体を収容する容器に配置し該容器に開口を形成する容器の注口形成装置に関する。
【０００２】
【従来の技術】
紙又はプラスチックを主たる素材として形成された容器の注口は、フィルム状のシートや樹脂製のプルタブが取り付けられ密封されていることが多く、開封する時は、該シートやプルタブを剥がし取ったり、該シートにストローを突き差し込んだりして行っている。
【０００３】
【発明が解決しようとする課題】
しかしながら、シートやプルタブを剥がし取ったり、該シートにストローを突き差したりする方法は、該シート、プルタブ及びストローが容器とは別のゴミとなり、これを安易に捨てることによりゴミ問題を招いてしまう。
【０００４】
シートやプルタブの一部分のみを剥がすようにして、シートやプルタブが容器から離脱しないようにしたものもあるが、これらのものはシートやプルタブから手を離すと、該シートやプルタブが容器の注口が閉塞されてしまうという問題がある。アルミニウム等の金属材からなる容器においては、一度開封すると開封した状態のままを保持する注口の構造もあるが、紙又はプラスチックを主たる素材として形成された容器にはこのようなものは無く、その開発が要望されている。
【０００５】
本願発明は上述の点に鑑みてなされたもので、紙又はプラスチックを主たる素材として形成された容器に使用され、簡単な構造である注口形成装置の提供を目的としている。
【０００６】
【課題を解決するための手段】
上記目的を達成するため、請求項１に記載の発明は、紙又はプラスチックを主たる素材として形成された容器を開封する容器の注口形成装置であって、前記容器の一部に開口を形成する開封部と、該開封部を操作する操作部と、該操作部を支持し前記容器に固定される支持部とを有し、相対向する前記開封部と操作部の間には、薄肉部を有する略Ｕ字状の溝部が設けられ、前記操作部は、前記溝部から所定寸法離れた位置の両側部に突設された支持軸部を介して前記支持部に連結支持され、前記開封部、操作部及び支持部は、前記薄肉部と支持軸部とを介して、一体成形されることを特徴とするものである。
【０００７】
請求項１に記載の発明では、容器の被開封部位を開封して注口を開口させる場合、操作部の反開封部側を持ち上げ、操作部を支持軸部を中心に回転させる。これにより、操作部と開封部とが薄肉部で屈曲した状態となり、操作部によって開封部が押圧され、開封部の反操作部側が押し下げられ、開封部によって、容器の被開封部位が破られる。
【０００８】
係る注口形成装置は、開封部と操作部と支持部とを、薄肉部と支持軸部とを介して、樹脂材により一体成形したものであるため、複数の部品の組み付けを要することなく、部品点数を最小限に抑えることができ、注口形成装置を容易且つ安価に製造することができる。
【０００９】
請求項２に記載の発明は、請求項１に記載の容器の注口形成装置であって、前記開封部には、前記支持部に形成された開封側係止段部に上方から係止自在な可撓性の開封側係止部が設けられ、前記操作部の反開封部側を持ち上げると、該操作部が前記支持軸部を中心に回転して前記溝部が閉じられ、該操作部が前記開封部を押圧し、前記開封側係止部が変形して前記開封側係止段部から外れ、前記開封部の反操作部側が押し下げられて、該開封部がその下方の前記容器の被開封部位を開封することを特徴とするものである。
【００１０】
請求項２に記載の発明では、請求項１に記載の発明の作用に加えて、開封部に、支持部の開封側係止段部に上方から係止自在な可撓性の開封側係止部を設けたので、操作部の反開封部側が強く持ち上げられない限り、開封側係止段部に係止する開封側係止部によって、開封部の下方への移動が阻止される。従って、開封操作前に容器の被開封部位が破られることが無く、密封状態が良好に維持される。
【００１１】
また、開封部に下方への強い力が付与された場合に、開封側係止部が開封側係止段部から外れるので、開封部の下方側が容器の被開封部位に勢いよく当たる。これにより、容器の被開封部位を容易且つ確実に破ることができる。
【００１２】
請求項３に記載の発明は、請求項２に記載の容器の注口形成装置であって、前記開封側係止部は、前記開封部から反操作部側へ突設され、前記支持軸部は、前記操作部から支持部へ向かって開封部側へ傾斜して延設され、その軸断面は、前記開封部と操作部とが形成する平面に沿って延びる横延設部を有していることを特徴とするものである。
【００１３】
請求項３に記載の発明では、請求項２に記載の発明の作用に加えて、開封側係止部が、開封部から反操作部側へ突設され、支持軸部が、操作部から支持部へ向かって開封部側へ傾斜して延設され、且つその軸断面が横延設部を有しているので、支持軸部が反操作部側への力に対して強固な構造となる。従って、操作部を持ち上げて、開封側係止部が開封側係止段部に上方から当接した後、操作部をさらに強く持ち上げた際に、支持軸部が反操作部側（開封部側）へずれて開封側係止部が開封側係止段部から外れなくなる恐れが無く、容器の被開封部位をさらに容易且つ確実に破ることができる。
【００１４】
請求項４に記載の発明は、請求項１〜請求項３のいずれかに記載の容器の注口形成装置であって、前記支持部には、下方へ押し下げられて前記容器の被開封部位を開封した開封部と係合し、該開封部の上方への回転移動を規制する開封維持部が設けられていることを特徴とするものである。
【００１５】
請求項４に記載の発明では、請求項１〜請求項３のいずれかに記載の発明の作用に加えて、支持部に、容器の被開封部位を開封した後の開封部と係合して開封部の上方への回転移動を規制する開封維持部を設けたので、容器の被開封部位の開封状態が良好に維持され、注口から液体を良好に流出させることができる。
【００１６】
請求項５に記載の発明は、請求項１〜請求項４のいずれかに記載の容器の注口形成装置であって、前記操作部には、前記支持部に形成された操作側係止段部に下方から係止自在な操作側係止部が設けられ、前記開封部が前記容器の被開封部位を開封した後、前記操作部の反開封部側を引き下げると、前記操作側係止部は、前記操作側係止段部を乗り越えてその下方へ移動し、該操作側係止段部に係止して前記操作部の持ち上がり方向への移動を規制することを特徴とするものである。
【００１７】
請求項５に記載の発明では、請求項１〜請求項４に記載の発明の作用に加えて、操作部に、支持部の操作側係止段部に下方から係止自在な操作側係止部を設けたので、容器の被開封部位を開封した後は、操作部を引き下げて、操作側係止段部に操作側係止部を係止させることによって、操作部の持ち上がりを防止することができる。これにより、飲食者は、操作部が突出しない状態で、違和感なく注口から収容飲料を飲むことができる。
【００１８】
請求項６に記載の発明は、請求項１〜請求項５のいずれかに記載の容器の注口形成装置であって、前記開封部の反操作部側の下面には、先細りする開封突起が突設されていることを特徴とするものである。
【００１９】
請求項６に記載の発明では、請求項１〜請求項５のいずれかに記載の発明の作用に加えて、開封部の反操作部側の下面に、先細りする開封突起を突設したので、この開封突起によって容器の被開封部位をより簡単に破ることができる。また、係る開封時には、開封突起が先細りする先端側から収容飲料の液表面に着水して潜るので、収容飲料の跳ねを最小に抑えることができる。
【００２０】
請求項７に記載の発明は、請求項１〜請求項６のいずれかに記載の容器の注口形成装置であって、前記支持部の外縁部は、前記容器の表面と連続するように下方へ滑らかに傾斜していることを特徴とするものである。
【００２１】
請求項７に記載の発明では、請求項１〜請求項６のいずれかに記載の発明の作用に加えて、飲食者の上唇が当たる支持部の外縁部を、容器の表面と連続するように下方へ滑らかに傾斜して設けたので、飲食者は上唇に違和感を感じることなく収容飲料を飲むことができる。
【００２２】
請求項８に記載の発明は、請求項１〜請求項７のいずれかに記載の容器の注口形成装置であって、前記開封部と操作部と支持部とを一体成形する際の樹脂注入部を、前記開封部に設けたことを特徴とするものである。
【００２３】
請求項８に記載の発明では、請求項１〜請求項７のいずれかに記載の発明の作用に加えて、成形時の樹脂注入部を開封部に設けたので、成形型内に注入された樹脂は、開封部から薄肉部を介して操作部へ流入され、さらに支持軸部を介して支持部へ流入される。これに対し、樹脂注入部を操作部に設けた場合には、成形型内に注入された樹脂は、主に操作部から支持軸部を介して支持部へ流入され、残りの一部が薄肉部を介して開封部へ流入されることとなり、薄肉部の肉厚が十分に確保されない恐れが生じてしまう。すなわち、樹脂注入部を開封部に設けることにより、流入樹脂を十分に薄肉部へ供給し、薄肉部を所望の一様な肉厚に確実に形成することができ、屈曲する薄肉部を所望の強度として、開封時の薄肉部の破損を防止することができる。
【００２４】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
【００２５】
図１は本実施の形態に係る注口形成装置を示す斜視図、図２は図１の注口開封装置の平面図、図３は図１の注口形成装置の側面図、図４は図１の注口形成装置の下面側を示す斜視図、図５は支持軸部の拡大断面図、図６〜図８は図１の注口形成装置の成形状態から使用前状態までの状態を示す図２のＡ−Ａ断面図、図９と図１１及び図１２は図１の注口形成装置の使用状態を示す図２のＡ−Ａ断面図、図１０は図９のＢ部拡大図である。
【００２６】
図１〜図３に示すように、注口形成装置１０は略板体状の樹脂材からなり、容器の注口を開封する開封部１１と、該開封部１１を操作する（作動させる）操作部１２と、操作部１２を支持し該注口形成装置１０を容器に固定する支持部１３とを有している。
【００２７】
開封部１１と操作部１２のと支持部１３は同一平面状に配置されている。相対向する開封部１１の一端部１１ａと操作部１２の一端部１２ａの間には、上方が開口し、下方に開封部１１と操作部１２とを連結する薄肉部１４ａ（図６参照）を有する略Ｕ字状の溝部１４が設けられている。溝部１４の最底部は、鋭角ではなく、なだらかに変化する円弧状に形成されている。
【００２８】
支持部１３は、開封部１１と該開封部１１に連続する操作部１２の所定部分を囲繞して配置されている。操作部１２は、溝部１４から所定寸法離れた位置の両側部に設けられた所定長さの支持軸部１５を介して、支持部１３に連結支持されている。
【００２９】
図１に示すように、開封部１１の反操作部側である他端１１ｂ側の下面には、先細りする開封突起２０が突設されている。また、支持部１３の外縁部２３は、容器の表面と連続するように下方へ滑らかに傾斜して形成されている。
【００３０】
図２に示すように、支持軸部１５は、操作部１２から支持部１３へ向かって開封部１１側へ傾斜して延設されている。支持軸部１５の軸断面は、図５に示すように、開封部１１と操作部１２とが形成する平面に沿って前後に延びる横延設部１５ａと、上下に延びる縦延設部１５ｂとを有する略十字状に形成されている。横延設部１５ａは、支持軸部１５に入力される横方向（開封部１１と操作部１２とが形成する平面に沿った前後方向）の力に対し強固に抗して支持軸部１５を補強し、縦延設部１５ｂは、支持軸部１５に入力される上下方向の力に強固に抗して支持軸部１５を補強する。これにより、支持軸部１５は、捻られやすく且つ破損し難い形状となっている。なお、支持軸部１５の軸断面形状は、横延設部を有していれば、前記略十字状に限るものではなく、例えば、略一字状や、星形状であっても良い。
【００３１】
これら開封部１１と操作部１２と支持部１３とは、薄肉部１４ａと支持軸部１５とを介して、樹脂材により一体成形されており、係る一体成形の際の樹脂注入部２６は、開封部１１に設けられている。
【００３２】
係る注口形成装置１０は、紙又はプラスチックを主たる素材として形成された容器の上部に配置し固定されている。そして、図９に示すように、操作部１２の反開封部側の他端部１２ｂが持ち上げられると、支持軸部１５が捻られ、操作部１２が支持軸部１５を中心に回転して溝部１４が閉じられ、操作部１２の一端部１２ａが開封部１１の一端部１１ａを押圧し、図１１に示すように、開封部１１の反操作部側の他端部１１ｂが押し下げられて、開封部１１がその下方に位置する容器の被開封部位を開封する。
【００３３】
図６に示すように、開封部１１には、支持部１３に形成された開封側係止段部１７に上方から係止自在な可撓性の開封側係止部１６が一体的に設けられている。この開封側係止部１６は、開封部１１の他端部１１ｂから反操作部側へ突設されている。図９に示すように、操作部１２の他端部１２ｂを持ち上げ、操作部１２が支持軸部１５を中心に回転して溝部１４が閉じられ、該操作部１２の一端部１２ａが開封部１１の一端部１１ａを押圧すると、図１０に示すように、開封側係止部１６が変形して開封側係止段部１７から外れ、開封部１１の他端部１１ｂが押し下げられる。
【００３４】
図１２に示すように、支持部１３には、下方へ押し下げられて容器の被開封部位を開封した開封部１１の上面と係合し、該開封部１１の上方への回転移動を規制する開封維持部２１が設けられている。開封維持部２１の上面２１ａは、開封部１１が開封維持部を円滑に乗り越えられるように傾斜面状に形成されている（図１参照）。
【００３５】
又、図の１２に示すように、操作部１２の他端部１２ｂ側には、支持部１３に形成された操作側係止段部１９に下方から係止自在な操作側係止部１８が設けられている。開封部１１が容器の被開封部位を開封した後、操作部１２の他端部１２ｂを引き下げると、操作側係止部１８は、撓み変形した操作側係止段部１９を乗り越えてその下方へ移動し、該操作側係止段部１９に係止して操作部１２の持ち上がり方向への移動を規制する。操作側係止段部１９の上下面は、操作側係止部１８が円滑に乗り越えられるように、傾斜面状に形成されている。
【００３６】
図３及び図６に示すように、操作部１２の他端部１２ｂは、一端部１２ａ側に比して薄肉状に形成され、この他端部１２ｂには、略三角形状の窓部２４が形成されて、いわゆるプルリングとして機能する。
【００３７】
また、図４に示すように、開封部１１と操作部１２と支持部１３の下面には、それぞれ補強用のリブ２５が網目状に突設され、支持部１３に突設されたリブ２５の交叉部分には、以上のような製造過程及び流通過程を経て、容器に注口形成装置１０を固定する固定治具（図示外）に対する該注口形成装置１０の位置決めを行うための円筒部２２が形成されている。
【００３８】
尚、同図中で支持部１３の下面、すなわち容器に接する面は、面一となっていないが、これは、当該実施例の注口形成装置１０の取付面が紙等を主体として多角柱状に折り曲げて形成した容器であるため完全な平面となっていない為、これに接合しやすくしたものである。また、注口形成装置１０と容器との接合に際しては、赤外線加熱等によるヒートシール等、公知の方法により行うことが可能である。
【００３９】
次に、上記注口形成装置１０の動作を説明する。
【００４０】
成形直後の注口形成装置１０は、成形型からの抜け勾配を考慮して、図６に示すように、水平方向に対して開封部１１が上方にθ１（約５°〜１５°）だけ傾き、操作部１２が下方へθ１以上大きく傾いた状態となっている。係る状態から、図７に示すように、操作部１２を上方へ持ち上げると、支持軸部１５が捻られて、操作部１２が支持軸部１２を略中心として回転し、これに伴って薄肉部１４ａで連結された開封部１１も下方へ回転移動して、開封側係止部１６が開封側係止段部１７に上方から係止する。このときの操作部１２の下方への傾き量はθ２は、約１０°となるように設定されている。
【００４１】
さらに操作部１２を持ち上げると、図８に示すように、開封側係止部１６が開封側係止段部１７に係止したまま、操作側係止部１８が操作側係止段部１９を乗り越えて該係止段部１９に上方から係止する。係る状態で、注口形成装置１０が容器に固定される。
【００４２】
容器に固定された注口形成装置１０を使用する場合、図９に示すように、操作部１２の他端部１２ｂを上方へ持ち上げて、操作部１２を支持軸部１５を中心に回転させる。この際、操作側係止部１８が操作側係止段部１９に上方から係止しているので、操作部１２の他端側１２ｂは容器の表面から所定量離間した状態に維持される。また、操作部１２の他端部１２ｂは薄肉状に形成されているので、指先を操作部１２の他端部１２ｂに引掛けることにより、該他端部１２ｂ側が上方へ撓み、容器の表面と操作部１２との間に、指先を容易に挿入させることができる。これにより、操作部１２の他端部１２ｂを簡単に上方へ持ち上げることができる。また、操作部１２の他端部１２ｂ側には窓部２４が形成され、窓部２４の周縁部分が撓み易くなっているので、指先の挿入をさらに容易に行うことができる。
【００４３】
操作部１２が支持軸部１５を中心として回転すると、操作部１２と開封部１１とが薄肉部１４ａで屈曲した状態となり、溝部１４の上方が閉じられて、操作部１２の一端部１２ａによって開封部１１の一端部１１ａが下方へ強く押圧される。これにより、図１０に示すように、開封側係止部１６が変形して開封側係止段部１７から外れ、図１１に示すように、開封部１１の他端部１１ｂが勢い良く押し下げられ、この過程で開封部１１の下面に設けられた開封突起２０によって、開封部１１の下方の被開封部位が破られる。
【００４４】
開封後は、さらに操作部１２を回転させて、開封部１１を開封維持部２１に係合させて上方への回転移動を阻止した後、図１２に示すように、操作部１２を反対方向へ回転させて、操作側係止部１８が操作側係止段部１９を乗り越えるまで操作部１２の他端部１２ｂを引き下げて、操作側係止部１８を操作側係止段部１９に下方から係止させ、操作部１２の持ち上がりを防止する。
【００４５】
本実施の形態によれば、紙又はプラスチックを主たる素材として形成される容器に固定した注口開封装置１０の操作部１２の他端部１２ｂを持ち上げるだけで、該操作部１２に連結された開封部１１を回転させ、該開封部１１の下方に位置する被開封部位を破り開封できるので、容器と別にゴミが発生することはない。
【００４６】
また、注口形成装置１０は、開封部１１と操作部１２と支持部１３とを、薄肉部１４ａと支持軸部１５とを介して、樹脂材により一体成形したものであるため、別途形成された複数の部品の組み付けを要することなく、部品点数を最小限に抑えることができ、注口形成装置１０を容易且つ安価に製造することができる。
【００４７】
また、開封部１１に、支持部１３の開封側係止段部１７に上方から係止自在な可撓性の開封側係止部１６を設けたので、操作部１２の他端部１２ｂが強く持ち上げられない限り、開封側係止段部１７に係止する開封側係止部１６によって、開封部１１の下方への移動が阻止される。従って、例えば商品流通過程などにおいて、人為的な開封操作前に容器の被開封部位が破られることが無く、密封状態が良好に維持される。
【００４８】
また、開封部１１に下方への強い力が付与された場合に、開封側係止部１６が開封側係止段部１７から外れるので、開封部１１の開封突起２０が容器の被開封部位に勢いよく当たる。これにより、容器の被開封部位を容易且つ確実に破ることができる。
【００４９】
また、開封側係止部１６が、開封部１１の他端部１１ｂから反操作部側へ突設され、支持軸部１５が、操作部１２から支持部１３へ向かって開封部１１側へ傾斜して延設され、且つその軸断面が横延設部１５ａを有しているので、支持軸部１５が反操作部側への力に対して強固な構造となる。従って、操作部１２を持ち上げて、開封側係止部１６が開封側係止段部１７に上方から当接した後、操作部１２をさらに強く持ち上げた際に、捻られた支持軸部１５が反操作部側（開封部１１側）へずれて開封側係止部１６が開封側係止段部１７から外れなくなる恐れが無く、容器の被開封部位をさらに容易且つ確実に破ることができる。
【００５０】
また、支持部１３に、容器の被開封部位を開封した後の開封部１１と係合して開封部１１の上方への回転移動を規制する開封維持部２１を設けたので、容器の被開封部位の開封状態が良好に維持され、注口から液体を良好に流出させることができる。
【００５１】
また、操作部１２に、支持部１３の操作側係止段部１９に下方から係止自在な操作側係止部１８を設けたので、容器の被開封部位を開封した後は、操作部１２を引き下げて、操作側係止段部１９に操作側係止部１８を下方から係止させることによって、操作部１９の持ち上がりを防止することができる。これにより、飲食者は、操作部が突出しない状態で、違和感なく注口から収容飲料を飲むことができる。
【００５２】
また、操作部１２の他端部１２ｂを薄肉状に形成したので、指先を操作部１２の他端部１２ｂに引掛けて上方へ持ち上げることにより、簡単に操作部１２を回転させて容器の被開封部位を開封することができる。
【００５３】
また、開封部１１の他端部１１ｂ側の下面に、先細りする開封突起２０を突設したので、この開封突起２０によって容器の被開封部位をより簡単に破ることができる。また、係る開封時には、開封突起２０が先細りする先端側から収容飲料の液表面に着水して潜るので、収容飲料の跳ねを最小に抑えることができる。
【００５４】
また、飲食者の上唇が当たる支持部１３の外縁部２３を、容器の表面と連続するように下方へ滑らかに傾斜して設けたので、飲食者は上唇に違和感を感じることなく収容飲料を飲むことができる。
【００５５】
さらに、注口形成装置１０の成形時の樹脂注入部２６を開封部１１に設けたので、成形型内に注入された樹脂は、開封部１１から薄肉部１４ａを介して操作部１２へ流入され、さらに支持軸部１５を介して支持部１３へ流入される。これに対し、樹脂注入部を操作部１２に設けた場合には、成形型内に注入された樹脂は、主に操作部１２から支持軸部１５を介して支持部１３へ流入され、残りの一部が薄肉部１４ａを介して開封部１１へ流入されることとなり、薄肉部１４ａの肉厚が十分に確保されない恐れが生じてしまう。すなわち、樹脂注入部２６を開封部１１に設けることにより、流入樹脂を十分に薄肉部１４ａへ供給し、薄肉部１４ａを一様な肉厚に確実に形成することができ、屈曲する薄肉部１４ａを所望の強度として、開封時の薄肉部１４ａの破損を防止することができる。また、本実施の形態では、溝部１４の最底部を、鋭角ではなく、なだらかに変化する略Ｕ字状としたので、これによっても薄肉部１４ａが破損し難くなっている。
【００５６】
なお、上記開封部１１，操作部１２及び支持部１３の形状配置は上記実施例に限定されるものではなく、要は樹脂材からなり、開封部、操作部及び支持部を有し、開封部と操作部と支持部は同一平面状に配置され、開封部と操作部はそれらの対向する一端の間に溝部を設けることにより形成された薄肉部で連結されており、支持部は開封部と該開封部に連続する操作部の所定部分を囲繞して配置されていれば、その形状及び配置はどのようなものであっても良い。
【００５７】
また、上記実施例では被開封部位として単に容器の上方の部分を注口形成位置としているが、この部分に細溝を形成し、注口を打ち抜きやすくしたものでもよい。
【００５８】
【発明の効果】
以上説明したように請求項１に記載の発明によれば、紙又はプラスチックを主たる素材として形成される容器に固定した注口形成装置の操作部の端部を持ち上げるだけで、該操作部に連結された開封部を回転させ、該開封部の下面に位置する注口を密封する容器の被開封部位を破り開封できるので、容器と別にゴミが発生することのない注口開封装置とすることができる。
【００５９】
また、係る注口形成装置は、樹脂材により一体成形したものであるため、複数の部品の組み付けを要せず、部品点数を最小限に抑えて、容易且つ安価に製造することができる。また、容器内に没入する開封部には直接手を触れる事なく操作部のみの操作で開口を形成できるので極めて衛生的である。
【００６０】
請求項２に記載の発明によれば、請求項１に記載の発明の効果に加えて、操作部の反開封部側が強く持ち上げられない限り、開封側係止段部に係止する開封側係止部によって、開封部の下方への移動が阻止されるので、開封操作前に容器の被開封部位が破られることが無く、密封状態が良好に維持される。
【００６１】
また、開封部に下方への強い力が付与された場合に、開封側係止部が開封側係止段部から外れるので、開封部の下方側が容器の被開封部位に勢いよく当たる。これにより、容器の被開封部位を容易且つ確実に破ることができる。
【００６２】
請求項３に記載の発明によれば、請求項２に記載の発明の効果に加えて、支持軸部が反操作部側への力に対して強固な構造となるので、操作部を持ち上げて、開封側係止部が開封側係止段部に上方から当接した後、操作部をさらに強く持ち上げた際に、支持軸部が反操作部側（開封部側）へずれて開封側係止部が開封側係止段部から外れなくなる恐れが無く、容器の被開封部位をさらに容易且つ確実に破ることができる。
【００６３】
請求項４に記載の発明によれば、請求項１〜請求項３のいずれかに記載の発明の効果に加えて、開封維持部によって容器の被開封部位の開封状態が良好に維持されるので、注口から液体を良好に流出させることができる。
【００６４】
請求項５に記載の発明によれば、請求項１〜請求項４に記載の発明の効果に加えて、容器の被開封部位を開封した後は、操作部を引き下げて、操作側係止段部に操作側係止部を係止させることによって、操作部の持ち上がりを防止することができるので、飲食者は、操作部が突出しない状態で、違和感なく注口から収容飲料を飲むことができる。
【００６５】
請求項６に記載の発明によれば、請求項１〜請求項５のいずれかに記載の発明の効果に加えて、開封部の他端側の下面に、先細りする開封突起を突設したので、この開封突起によって容器の被開封部位をより簡単に破ることができる。また、係る開封時には、開封突起が先細りする先端側から収容飲料の液表面に着水して潜るので、収容飲料の跳ねを最小に抑えることができる。
【００６６】
請求項７に記載の発明によれば、請求項１〜請求項６のいずれかに記載の発明の効果に加えて、飲食者の上唇が当たる支持部の外縁部を、容器の表面と連続するように下方へ滑らかに傾斜して設けたので、飲食者は上唇に違和感を感じることなく収容飲料を飲むことができる。
【００６７】
請求項８に記載の発明によれば、請求項１〜請求項７のいずれかに記載の発明の効果に加えて、成形時の樹脂注入部を開封部に設けたので、樹脂注入部を操作部に設けた場合に比し、薄肉部を一様な所望の肉厚に確実に形成することができ、屈曲する薄肉部を所望の強度として、開封時の薄肉部の破損を防止することができる。
【図面の簡単な説明】
【図１】本実施の形態に係る注口形成装置を示す斜視図である。
【図２】図１の注口形成装置の平面図である。
【図３】図１の注口形成装置の側面図である。
【図４】図１の注口形成装置の下面側を示す斜視図である。
【図５】支持軸部の拡大断面図である。
【図６】図１の注口形成装置の成形状態を示す図２のＡ−Ａ断面図である。
【図７】図１の注口形成装置の成形状態から使用前状態までの途中の状態を示す図２のＡ−Ａ断面図である。
【図８】図１の注口形成装置の使用前状態を示す図２のＡ−Ａ断面図である。
【図９】図１の注口形成装置の使用状態を示す図２のＡ−Ａ断面図である。
【図１０】図９のＢ部拡大図である。
【図１１】図１の注口形成装置の使用状態を示す図２のＡ−Ａ断面図である。
【図１２】図１の注口形成装置の使用状態を示す図２のＡ−Ａ断面図である。
【符号の説明】
１０注口形成装置
１１開封部
１１ａ一端部
１１ｂ他端部
１２操作部
１２ａ一端部
１２ｂ他端部
１３支持部
１４溝部
１４ａ薄肉部
１５支持軸部
１５ａ横延設部
１６開封側係止部
１７開封側係止段部
１８操作側係止部
１９操作側係止段部
２０開封突起
２１開封維持部
２３支持部の外縁部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spout forming device for a container that is formed using paper or plastic as a main material and that is mainly disposed in a container that contains a liquid and forms an opening in the container.
[0002]
[Prior art]
The spout of a container formed mainly of paper or plastic is often sealed with a film-like sheet or resin pull tab attached, and when opening, the sheet or pull tab is peeled off, For example, a straw is inserted into the sheet.
[0003]
[Problems to be solved by the invention]
However, the method of peeling off the sheet or the pull tab or inserting a straw into the sheet causes the dust problem because the sheet, the pull tab, and the straw are separated from the container, and are easily discarded. .
[0004]
Some of the sheets and pull tabs are peeled off so that the sheets and pull tabs are not detached from the container. However, when these hands are released from the sheets or pull tabs, the sheets and pull tabs become the spout of the container. There is a problem that is blocked. In a container made of a metal material such as aluminum, there is also a spout structure that holds the opened state once opened, but there is no such thing in containers formed mainly of paper or plastic, The development is demanded.
[0005]
This invention is made | formed in view of the above-mentioned point, and is used for the container formed as a main raw material of paper or a plastics, It aims at provision of the spout formation apparatus which is a simple structure.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is a container spout forming device for opening a container formed of paper or plastic as a main material, and forming an opening in a part of the container. An opening portion, an operation portion that operates the opening portion, and a support portion that supports the operation portion and is fixed to the container. A thin wall portion is provided between the opening portion and the operation portion that face each other. A substantially U-shaped groove portion is provided, and the operation portion is connected and supported to the support portion via support shaft portions protruding from both sides at a position away from the groove portion by a predetermined dimension, and the opening portion, The operation part and the support part are integrally formed through the thin part and the support shaft part.
[0007]
In the first aspect of the present invention, when the opening portion of the container is opened to open the spout, the counter opening portion side of the operation portion is lifted, and the operation portion is rotated around the support shaft portion. Thereby, the operation part and the opening part are bent at the thin part, the opening part is pressed by the operation part, the counter-operation part side of the opening part is pushed down, and the opening portion of the container is broken by the opening part.
[0008]
Since the spout forming device is formed by integrally molding the opening portion, the operation portion, and the support portion with the resin material through the thin portion and the support shaft portion, it is not necessary to assemble a plurality of parts. The number of parts can be minimized, and the spout forming device can be manufactured easily and inexpensively.
[0009]
A second aspect of the present invention is the container spout forming device according to the first aspect, wherein the unsealing portion can be freely locked from above on an unsealing side locking step formed on the support portion. A flexible unsealing side locking portion is provided, and when the anti-opening portion side of the operation portion is lifted, the operation portion rotates about the support shaft portion, the groove portion is closed, and the operation portion is The opening part is pressed, the opening side latching part is deformed and disengaged from the opening side latching step part, the counter-operation part side of the opening part is pushed down, and the opening part is covered by the container below the container. The unsealed part is opened.
[0010]
In addition to the effect | action of invention of Claim 1, in invention of Claim 2, the flexible opening side latching which can be latched from the upper part to the opening side latching step part of a support part in an opening part is possible. Since the portion is provided, unless the anti-opening portion side of the operation portion is lifted strongly, the downward movement of the opening portion is prevented by the opening side locking portion that is locked to the opening side locking step portion. Therefore, the unsealed part of the container is not broken before the opening operation, and the sealed state is maintained well.
[0011]
In addition, when a strong downward force is applied to the opening portion, the opening side locking portion is disengaged from the opening side locking step portion, so that the lower side of the opening portion strikes the opening portion of the container vigorously. Thereby, the to-be-opened site | part of a container can be broken easily and reliably.
[0012]
A third aspect of the present invention is the container spout forming device according to the second aspect, wherein the unsealing side locking portion projects from the unsealing portion to the counter-operation portion side, and the support shaft portion Is inclined and extended toward the opening portion from the operation portion toward the support portion, and its axial cross section has a laterally extending portion extending along a plane formed by the opening portion and the operation portion. It is characterized by being.
[0013]
In the invention described in claim 3, in addition to the operation of the invention described in claim 2, the unsealing side locking portion protrudes from the unsealing portion to the non-operation portion side, and the support shaft portion is supported from the operation portion. Since the shaft section has a laterally extending portion, the support shaft portion has a strong structure against the force on the counter-operation portion side. . Therefore, when the operating part is lifted and the opening side locking part comes into contact with the opening side locking step part from above, when the operating part is lifted more strongly, the support shaft part is on the non-operating part side (opening part side). ) And the unsealed side locking portion cannot be detached from the unsealed side locking stepped portion, and the unsealed portion of the container can be broken more easily and reliably.
[0014]
Invention of Claim 4 is a spout formation apparatus of the container in any one of Claims 1-3, Comprising: In the said support part, it is pushed down below and the to-be-opened site | part of the said container is carried out An opening maintaining section that engages with the opened opening and restricts the rotational movement of the opening above is provided.
[0015]
In the invention according to claim 4, in addition to the action of the invention according to any one of claims 1 to 3, the support part is engaged with the opening part after the opening part of the container is opened. Since the opening maintenance part which regulates the rotational movement of the opening part above is provided, the opening state of the unsealed part of the container is well maintained, and the liquid can be satisfactorily discharged from the spout.
[0016]
A fifth aspect of the present invention is the container spout forming device according to any one of the first to fourth aspects, wherein the operation portion includes an operation side locking step formed on the support portion. The operation side locking portion that can be locked from below is provided on the portion, and when the opening portion opens the unsealed portion of the container, the operation side locking portion Is characterized in that it moves over the operation side locking step and moves downward, and is locked to the operation side locking step to restrict the movement of the operation unit in the lifting direction. .
[0017]
In the fifth aspect of the invention, in addition to the operation of the first to fourth aspects of the invention, the operation portion can be locked to the operation portion at the operation side locking step portion of the support portion from below. After opening the unsealed part of the container, the operation part is pulled down to prevent the operation part from being lifted by locking the operation side engagement part to the operation side engagement stepped part. Can do. Thereby, the eating and drinking person can drink a stored drink from a spout without a sense of incongruity in the state which an operation part does not protrude.
[0018]
A sixth aspect of the present invention is the container spout forming device according to any one of the first to fifth aspects, wherein a tapering opening protrusion is formed on the lower surface of the opening portion on the side opposite to the operation portion. It is characterized by being protruded.
[0019]
In the invention according to claim 6, in addition to the action of the invention according to any one of claims 1 to 5, a tapering opening protrusion projects from the lower surface of the opening portion on the side opposite to the operation portion. The unsealed portion of the container can be more easily broken by the unsealing protrusion. Further, at the time of opening, the splashing of the contained beverage can be suppressed to the minimum because the unsealed protrusion lands on the liquid surface of the contained beverage from the tip side where the opening protrusion tapers.
[0020]
A seventh aspect of the present invention is the container spout forming device according to any one of the first to sixth aspects, wherein the outer edge portion of the support portion is positioned downward so as to be continuous with the surface of the container. It is characterized by being inclined smoothly.
[0021]
In addition to the effect | action of the invention in any one of Claims 1-6, in the invention of Claim 7, the outer edge part of the support part which an upper and lower lip of a food / drinker hits is continued with the surface of a container. Since it is provided so as to be smoothly inclined downward, the food and drink can drink the stored beverage without feeling uncomfortable on the upper lip.
[0022]
Invention of Claim 8 is a spout formation apparatus of the container in any one of Claims 1-7, Comprising: Resin injection | pouring at the time of integrally forming the said opening part, an operation part, and a support part A portion is provided in the opening portion.
[0023]
In the invention according to claim 8, in addition to the action of the invention according to any one of claims 1 to 7, since the resin injection part at the time of molding is provided in the opening part, the resin is injected into the mold. The resin flows from the opening portion to the operation portion via the thin portion, and further flows to the support portion via the support shaft portion. On the other hand, when the resin injection part is provided in the operation part, the resin injected into the mold is mainly flowed from the operation part through the support shaft part to the support part, and the remaining part is thin. It will flow into an opening part via a part, and there exists a possibility that the thickness of a thin part may not be secured enough. That is, by providing the resin injecting portion in the opening portion, the inflow resin can be sufficiently supplied to the thin-walled portion, and the thin-walled portion can be reliably formed to have a desired uniform thickness, and the bent thin-walled portion can be formed as desired. As strength, breakage of the thin portion at the time of opening can be prevented.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0025]
1 is a perspective view showing a spout forming device according to the present embodiment, FIG. 2 is a plan view of the spout opening device of FIG. 1, FIG. 3 is a side view of the spout forming device of FIG. 1, and FIG. FIG. 5 is an enlarged cross-sectional view of the support shaft portion, and FIGS. 6 to 8 show states from the molding state to the pre-use state of the spout forming device of FIG. 2 is a cross-sectional view taken along the line AA in FIG. 2, FIG. 9, FIG. 11 and FIG. 12 are cross-sectional views taken along the line A-A in FIG. is there.
[0026]
As shown in FIG. 1 to FIG. 3, the spout forming device 10 is made of a substantially plate-like resin material, and an opening portion 11 that opens the spout of the container, and an operation that operates (activates) the opening portion 11. Part 12 and support part 13 which supports operation part 12 and fixes this spout forming device 10 to a container.
[0027]
The opening part 11, the operation part 12 and the support part 13 are arranged in the same plane. Between the one end part 11a of the opening part 11 and the one end part 12a of the operation part 12 which oppose each other, the upper part opens, and the thin part 14a (refer FIG. 6) which connects the opening part 11 and the operation part 12 below. The substantially U-shaped groove part 14 which has is provided. The bottom part of the groove part 14 is not an acute angle, but is formed in an arc shape that changes gently.
[0028]
The support portion 13 is disposed so as to surround a predetermined portion of the opening portion 11 and the operation portion 12 continuous to the opening portion 11. The operation part 12 is connected and supported by the support part 13 via a support shaft part 15 having a predetermined length provided on both side parts at a position away from the groove part 14 by a predetermined dimension.
[0029]
As shown in FIG. 1, a taper-opening projection 20 projects from the lower surface of the other end 11 b side which is the counter-operation part side of the opening part 11. Further, the outer edge portion 23 of the support portion 13 is formed so as to be smoothly inclined downward so as to be continuous with the surface of the container.
[0030]
As shown in FIG. 2, the support shaft portion 15 is inclined and extended toward the opening portion 11 from the operation portion 12 toward the support portion 13. As shown in FIG. 5, the shaft section of the support shaft portion 15 includes a laterally extending portion 15 a extending back and forth along a plane formed by the opening portion 11 and the operation portion 12, and a vertically extending portion 15 b extending vertically. It is formed in the substantially cross shape which has. The laterally extending portion 15 a strongly resists the force in the lateral direction (front and rear direction along the plane formed by the opening portion 11 and the operation portion 12) input to the support shaft portion 15, and pushes the support shaft portion 15. The longitudinally extending portion 15 b reinforces the support shaft portion 15 against a force in the vertical direction input to the support shaft portion 15. Thereby, the support shaft portion 15 has a shape that is easily twisted and is not easily damaged. The axial cross-sectional shape of the support shaft portion 15 is not limited to the substantially cross shape as long as it has a laterally extending portion, and may be, for example, a substantially single shape or a star shape.
[0031]
The opening portion 11, the operation portion 12, and the support portion 13 are integrally formed of a resin material via the thin-walled portion 14a and the support shaft portion 15, and the resin injection portion 26 at the time of the integral molding is opened. It is provided in the part 11.
[0032]
The spout forming apparatus 10 is arranged and fixed on the upper part of a container formed using paper or plastic as a main material. Then, as shown in FIG. 9, when the other end portion 12 b on the side opposite to the unsealing portion of the operation portion 12 is lifted, the support shaft portion 15 is twisted, and the operation portion 12 rotates around the support shaft portion 15 to rotate the groove portion. 14 is closed, the one end 12a of the operation part 12 presses the one end 11a of the opening part 11, and the other end part 11b on the side opposite to the operation part of the opening part 11 is pushed down as shown in FIG. The part 11 opens the to-be-opened site | part of the container located in the downward direction.
[0033]
As shown in FIG. 6, the opening portion 11 is integrally provided with a flexible opening side locking portion 16 that can be locked from above on an opening side locking step portion 17 formed on the support portion 13. ing. The unsealing side locking portion 16 protrudes from the other end portion 11b of the unsealing portion 11 to the counter-operation portion side. As shown in FIG. 9, the other end 12 b of the operation unit 12 is lifted, the operation unit 12 rotates around the support shaft 15, the groove 14 is closed, and one end 12 a of the operation unit 12 is opened. When the one end portion 11a is pressed, as shown in FIG. 10, the unsealing side locking portion 16 is deformed and disengages from the unsealing side locking step portion 17, and the other end portion 11b of the unsealing portion 11 is pushed down.
[0034]
As shown in FIG. 12, the support portion 13 is engaged with the upper surface of the opening portion 11 that has been pushed down to open the opening portion of the container, and the opening that restricts the rotational movement of the opening portion 11 upward is engaged. A maintenance unit 21 is provided. The upper surface 21a of the opening maintenance part 21 is formed in an inclined surface shape so that the opening part 11 can smoothly get over the opening maintenance part (see FIG. 1).
[0035]
Further, as shown in FIG. 12, on the other end portion 12 b side of the operation portion 12, an operation side locking portion 18 that can be locked from below to an operation side locking step portion 19 formed on the support portion 13. Is provided. After the opening portion 11 opens the unsealed portion of the container, when the other end portion 12b of the operation portion 12 is pulled down, the operation side locking portion 18 gets over the operation side locking step portion 19 which has been bent and deformed and moves downward. It moves and locks to the operation side locking step 19 to restrict the movement of the operating portion 12 in the lifting direction. The upper and lower surfaces of the operation side locking step portion 19 are formed in an inclined surface so that the operation side locking portion 18 can smoothly get over.
[0036]
As shown in FIGS. 3 and 6, the other end portion 12b of the operation portion 12 is formed thinner than the one end portion 12a side, and a substantially triangular window portion 24 is formed on the other end portion 12b. It is formed and functions as a so-called pull ring.
[0037]
Further, as shown in FIG. 4, reinforcing ribs 25 project in a mesh shape on the lower surfaces of the opening portion 11, the operation portion 12, and the support portion 13, and the ribs 25 projecting on the support portion 13. A cylindrical portion 22 for positioning the spout forming device 10 with respect to a fixing jig (not shown) for fixing the spout forming device 10 to the container through the manufacturing process and the distribution process as described above. Is formed.
[0038]
In addition, although the lower surface of the support part 13 in the same figure, ie, the surface in contact with the container, is not flush, this is because the mounting surface of the spout forming device 10 of this embodiment is mainly formed of paper or the like in a polygonal column shape. Since it is a container formed by bending it into two, it is not a perfect plane, so it can be easily joined to it. Further, the splicing device 10 and the container can be joined by a known method such as heat sealing by infrared heating or the like.
[0039]
Next, operation | movement of the said spout formation apparatus 10 is demonstrated.
[0040]
As shown in FIG. 6, the spout forming device 10 immediately after molding has an opening portion 11 inclined upward by θ1 (about 5 ° to 15 °) with respect to the horizontal direction as shown in FIG. The operation unit 12 is tilted downward greatly by θ1 or more. From this state, as shown in FIG. 7, when the operation portion 12 is lifted upward, the support shaft portion 15 is twisted, and the operation portion 12 rotates about the support shaft portion 12. The opening part 11 connected by 14a also rotates downwards, and the opening side latching | locking part 16 latches to the opening side latching step part 17 from upper direction. The downward tilt amount of the operation unit 12 at this time is set so that θ2 is about 10 °.
[0041]
When the operation portion 12 is further lifted, as shown in FIG. 8, the operation side locking portion 18 holds the operation side locking step portion 19 while the opening side locking portion 16 is locked to the opening side locking step portion 17. It gets over and is locked to the locking step 19 from above. In this state, the spout forming device 10 is fixed to the container.
[0042]
When using the spout forming device 10 fixed to the container, as shown in FIG. 9, the other end portion 12 b of the operation portion 12 is lifted upward, and the operation portion 12 is rotated around the support shaft portion 15. At this time, since the operation side locking portion 18 is locked to the operation side locking step portion 19 from above, the other end side 12b of the operation portion 12 is maintained in a state separated from the surface of the container by a predetermined amount. Further, since the other end portion 12b of the operation portion 12 is formed in a thin shape, when the fingertip is hooked on the other end portion 12b of the operation portion 12, the other end portion 12b side is bent upward, and the surface of the container A fingertip can be easily inserted between the operation unit 12. Thereby, the other end part 12b of the operation part 12 can be easily lifted upward. Moreover, since the window part 24 is formed in the other end part 12b side of the operation part 12, and the peripheral part of the window part 24 becomes easy to bend, insertion of a fingertip can be performed still more easily.
[0043]
When the operation portion 12 rotates about the support shaft portion 15, the operation portion 12 and the opening portion 11 are bent at the thin portion 14a, the upper portion of the groove portion 14 is closed, and the opening portion is opened by the one end portion 12a of the operation portion 12. One end 11a of the portion 11 is strongly pressed downward. As a result, as shown in FIG. 10, the unsealing side locking portion 16 is deformed and disengaged from the unsealing side locking step portion 17, and as shown in FIG. 11, the other end portion 11b of the unsealing portion 11 is pushed down vigorously. In this process, the portion to be opened under the opening portion 11 is broken by the opening protrusion 20 provided on the lower surface of the opening portion 11.
[0044]
After the opening, the operation unit 12 is further rotated to engage the unsealing unit 11 with the unsealing maintenance unit 21 to prevent the rotational movement upward, and then the operation unit 12 is moved in the opposite direction as shown in FIG. The other end portion 12b of the operation portion 12 is pulled down until the operation side locking portion 18 gets over the operation side locking step portion 19, and the operation side locking portion 18 is moved to the operation side locking step portion 19 from below. The operation unit 12 is prevented from being lifted by being locked.
[0045]
According to the present embodiment, the opening connected to the operation unit 12 can be achieved simply by lifting the other end portion 12b of the operation unit 12 of the spout opening device 10 fixed to a container formed of paper or plastic as a main material. Since the part 11 is rotated and the portion to be opened located below the opening part 11 can be broken and opened, no dust is generated separately from the container.
[0046]
Further, the spout forming device 10 is formed separately because the unsealing portion 11, the operation portion 12, and the support portion 13 are integrally formed of a resin material via the thin portion 14a and the support shaft portion 15. In addition, the number of parts can be minimized without requiring assembly of a plurality of parts, and the spout forming device 10 can be manufactured easily and inexpensively.
[0047]
Further, since the opening portion 11 is provided with a flexible opening side locking portion 16 that can be locked from above on the opening side locking step portion 17 of the support portion 13, the other end portion 12b of the operation portion 12 is strong. Unless it is lifted, the opening side locking portion 16 locked to the opening side locking step portion 17 prevents the opening portion 11 from moving downward. Therefore, for example, in the merchandise distribution process, the unsealed part of the container is not broken before the artificial opening operation, and the sealed state is maintained well.
[0048]
Further, when a strong downward force is applied to the unsealing portion 11, the unsealing side locking portion 16 is disengaged from the unsealing side locking step portion 17, so that the unsealing protrusion 20 of the unsealing portion 11 becomes an unsealed part of the container. It hits vigorously. Thereby, the to-be-opened site | part of a container can be broken easily and reliably.
[0049]
Further, the unsealing side locking portion 16 protrudes from the other end portion 11b of the unsealing portion 11 to the counter operation portion side, and the support shaft portion 15 is inclined toward the unsealing portion 11 from the operation portion 12 toward the support portion 13. Since the shaft section has the laterally extending portion 15a, the support shaft portion 15 has a strong structure against the force on the counter-operation portion side. Therefore, when the operating portion 12 is lifted and the opening side locking portion 16 comes into contact with the opening side locking step portion 17 from above and then the operating portion 12 is further lifted, the twisted support shaft portion 15 is There is no possibility that the unsealing side locking portion 16 will not be disengaged from the unsealing side latching step portion 17 by shifting to the counter-operation portion side (opening portion 11 side), and the unsealed portion of the container can be broken more easily and reliably.
[0050]
In addition, since the support part 13 is provided with the opening maintenance part 21 that engages with the opening part 11 after opening the opening part of the container and restricts the rotational movement of the opening part 11 upward, the opening part of the container is opened. The unsealed state of the part is maintained well, and the liquid can be satisfactorily discharged from the spout.
[0051]
Moreover, since the operation side latching | locking part 18 of the operation part 12 of the support part 13 provided in the operation part 12 with the operation side latching | locking part 18 which can be freely locked from the downward direction was provided, after opening the to-be-opened site | part of a container, the operation part 12 is opened. The operation portion 19 can be prevented from being lifted by pulling down and causing the operation side engagement step portion 19 to engage the operation side engagement portion 18 from below. Thereby, the eating and drinking person can drink a stored drink from a spout without a sense of incongruity in the state which an operation part does not protrude.
[0052]
Further, since the other end portion 12b of the operation portion 12 is formed in a thin shape, the operation portion 12 is easily rotated by hooking the fingertip on the other end portion 12b of the operation portion 12 and lifting it upward. The opening site can be opened.
[0053]
Moreover, since the tapering opening projection 20 protrudes from the lower surface of the opening portion 11 on the other end 11b side, the opening portion of the container can be easily broken by the opening projection 20. Further, when opening, since the opening protrusion 20 lands on the liquid surface of the stored beverage from the tip side where the taper tapers out, the stored beverage can be minimized.
[0054]
In addition, since the outer edge portion 23 of the support portion 13 that the upper and lower lips of the eater eats is provided so as to be smoothly inclined downward so as to be continuous with the surface of the container, the eater eats the contained beverage without feeling uncomfortable on the upper lip. be able to.
[0055]
Furthermore, since the resin injection part 26 at the time of molding of the spout forming device 10 is provided in the opening part 11, the resin injected into the molding die flows into the operation part 12 from the opening part 11 through the thin part 14a. Further, it flows into the support portion 13 through the support shaft portion 15. On the other hand, when the resin injection part is provided in the operation part 12, the resin injected into the mold is mainly flowed from the operation part 12 to the support part 13 via the support shaft part 15, and the remaining part. A part will flow into the opening part 11 via the thin part 14a, and there exists a possibility that the thickness of the thin part 14a may not be ensured enough. That is, by providing the resin injection part 26 in the opening part 11, the inflow resin can be sufficiently supplied to the thin part 14a, and the thin part 14a can be reliably formed to have a uniform thickness, and the thin part 14a to be bent is provided. Can be prevented from being damaged at the time of opening. In the present embodiment, the bottom of the groove portion 14 is not an acute angle, but has a substantially U-shape that changes gently. This also makes it difficult for the thin-walled portion 14a to be damaged.
[0056]
In addition, the shape arrangement of the opening part 11, the operation part 12, and the support part 13 is not limited to the above-described embodiment, but is basically made of a resin material, and has an opening part, an operation part, and a support part. And the operation part and the support part are arranged in the same plane, the opening part and the operation part are connected by a thin part formed by providing a groove part between their opposing ends, and the support part is connected to the opening part. As long as the predetermined part of the operation part continuing to the opening part is surrounded and arranged, the shape and arrangement thereof may be any.
[0057]
Moreover, in the said Example, although the upper part of a container is made into a spout formation position as a to-be-opened site | part, a narrow groove may be formed in this part and it may be easy to punch out a spout.
[0058]
【The invention's effect】
As described above, according to the first aspect of the present invention, it is possible to connect to the operation unit simply by lifting the end of the operation unit of the spout forming device fixed to the container formed of paper or plastic as a main material. Since the opened portion of the container that rotates the opened opening portion and seals the opening located on the lower surface of the opening portion can be torn and opened, it is possible to provide a mouth opening device that does not generate dust separately from the container. it can.
[0059]
In addition, since the spout forming device is integrally formed of a resin material, it is not necessary to assemble a plurality of components, and can be manufactured easily and inexpensively with a minimum number of components. Further, since the opening can be formed by the operation of only the operation part without directly touching the opening part that is immersed in the container, it is very hygienic.
[0060]
According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, the unsealing side member that is engaged with the unsealing side locking step unless the counter-opening portion side of the operation portion is lifted strongly. Since the stop portion prevents the opening portion from moving downward, the unsealed portion of the container is not broken before the opening operation, and the sealed state is well maintained.
[0061]
Further, when a strong downward force is applied to the opening portion, the opening side locking portion is disengaged from the opening side locking step portion, so that the lower side of the opening portion strikes the opening portion of the container vigorously. Thereby, the to-be-opened site | part of a container can be broken easily and reliably.
[0062]
According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the support shaft portion has a strong structure against the force to the counter-operation portion side. After the unsealing side locking part comes into contact with the unsealing side locking step part from above, when the operating part is lifted more strongly, the support shaft part is shifted to the non-operating part side (opening part side) and the opening side engaging part There is no fear that the stop portion will not come off from the opening side locking step portion, and the opening portion of the container can be broken more easily and reliably.
[0063]
According to the invention described in claim 4, in addition to the effects of the invention described in any one of claims 1 to 3, since the opening state of the site to be opened of the container is well maintained by the opening maintaining part. The liquid can be made to flow out from the spout well.
[0064]
According to the fifth aspect of the present invention, in addition to the effects of the first to fourth aspects of the invention, after opening the unsealed portion of the container, the operation portion is pulled down to operate the operation side locking step. By locking the operation side locking part to the part, it is possible to prevent the operation part from being lifted, so that a drinker can drink the stored beverage from the spout without feeling uncomfortable with the operation part not protruding. .
[0065]
According to the invention described in claim 6, in addition to the effect of the invention described in any one of claims 1 to 5, since the opening protrusion to be tapered projects on the lower surface of the other end side of the opening part. The unsealed portion of the container can be more easily broken by the opening protrusion. Further, at the time of opening, the splashing of the contained beverage can be suppressed to the minimum because the unsealed protrusion lands on the liquid surface of the contained beverage from the tip side where the opening protrusion tapers.
[0066]
According to the invention described in claim 7, in addition to the effects of the invention described in any one of claims 1 to 6, the outer edge portion of the support portion on which the upper lip of a person eats and drinks is continuous with the surface of the container. Thus, the food and drinker can drink the stored beverage without feeling uncomfortable on the upper lip.
[0067]
According to the invention described in claim 8, in addition to the effects of the invention described in any one of claims 1 to 7, since the resin injection part at the time of molding is provided in the opening part, the resin injection part is operated. Compared with the case where it is provided in the part, the thin part can be reliably formed to a uniform desired thickness, and the thin part to be bent has a desired strength, so that the thin part at the time of opening can be prevented from being damaged. it can.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a spout forming device according to the present embodiment.
2 is a plan view of the spout forming device of FIG. 1. FIG.
3 is a side view of the spout forming device of FIG. 1. FIG.
4 is a perspective view showing a lower surface side of the spout forming device of FIG. 1. FIG.
FIG. 5 is an enlarged cross-sectional view of a support shaft portion.
6 is a cross-sectional view taken along the line AA of FIG. 2 showing a molding state of the spout forming device of FIG. 1;
7 is a cross-sectional view taken along the line AA of FIG. 2 showing a state halfway from the molding state to the pre-use state of the spout forming device of FIG. 1;
8 is a cross-sectional view taken along the line AA of FIG. 2, showing a state before use of the spout forming device of FIG.
9 is a cross-sectional view taken along the line AA of FIG. 2 showing a use state of the spout forming device of FIG.
10 is an enlarged view of a portion B in FIG. 9;
11 is a cross-sectional view taken along the line AA of FIG. 2 showing a use state of the spout forming device of FIG. 1;
12 is a cross-sectional view taken along the line AA of FIG. 2 showing a usage state of the spout forming device of FIG. 1;
[Explanation of symbols]
10 Spout forming device
11 Unsealed part
11a One end
11b The other end
12 Operation unit
12a one end
12b The other end
13 Support part
14 Groove
14a Thin part
15 Support shaft
15a Horizontal extension
16 Opening side locking part
17 Opening side locking step
18 Operation side locking part
19 Operation side locking step
20 Opening protrusion
21 Opening maintenance section
23 Outer edge of support

Claims

A spout forming device for a container for opening a container formed of paper or plastic as a main material,
An opening part that forms an opening in a part of the container, an operation part that operates the opening part, and a support part that supports the operation part and is fixed to the container,
Between the opening part and the operation part facing each other, a substantially U-shaped groove part having a thin part is provided,
The operation portion is connected and supported to the support portion via support shaft portions protruding on both side portions at a position away from the groove portion by a predetermined dimension,
The container opening forming device, wherein the opening portion, the operation portion, and the support portion are integrally formed through the thin portion and the support shaft portion.

The container spout forming device according to claim 1,
The opening portion is provided with a flexible opening side locking portion that can be locked from above on an opening side locking step portion formed on the support portion,
When the counter opening portion side of the operation portion is lifted, the operation portion rotates about the support shaft portion, the groove portion is closed, the operation portion presses the opening portion, and the opening side locking portion is The container spout, wherein the container is deformed and removed from the opening side locking step, the counter-operation part side of the opening is pushed down, and the opening opens the part to be opened of the container below the opening. Forming equipment.

The container spout forming device according to claim 2,
The unsealing side latching part is projected from the unsealing part to the counter-operation part side,
The support shaft portion is inclined and extended toward the opening portion from the operation portion toward the support portion, and the axial cross section extends along a plane formed by the opening portion and the operation portion. A container spout forming device characterized by comprising:

A spout forming device for a container according to any one of claims 1 to 3,
The support portion is provided with an opening maintaining portion that is pressed downward to engage with an opening portion that has opened an opening portion of the container and restricts rotational movement of the opening portion upward. The container spout forming device.

A spout forming device for a container according to any one of claims 1 to 4,
The operation portion is provided with an operation side locking portion that can be locked from below on an operation side locking step portion formed in the support portion,
After the unsealed part opens the unsealed part of the container, when the anti-unsealed part side of the operation part is pulled down, the operation side latching part gets over the operation side latching step part and moves downward. An apparatus for forming a spout of a container, which is locked to the operation side locking step portion and restricts the movement of the operation portion in the lifting direction.

A spout forming device for a container according to any one of claims 1 to 5,
A spout forming device for a container, characterized in that a tapering opening protrusion projects from a lower surface of the opening portion on the side opposite to the operation portion.

A spout forming device for a container according to any one of claims 1 to 6,
An outer edge portion of the supporting portion is smoothly inclined downward so as to be continuous with the surface of the container.

A spout forming device for a container according to any one of claims 1 to 7,
An apparatus for forming a spout of a container, characterized in that a resin injection part for integrally molding the opening part, the operation part and the support part is provided in the opening part.