JP3874169B2

JP3874169B2 - Synthetic resin pouring cap

Info

Publication number: JP3874169B2
Application number: JP2001350182A
Authority: JP
Inventors: 夏夫篠崎; 勝田村
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 2000-12-21
Filing date: 2001-11-15
Publication date: 2007-01-31
Anticipated expiration: 2021-11-15
Also published as: JP2002249151A

Description

【０００１】
【発明の属する技術分野】
本発明は、壜体の口筒に組付けられ、内容液の注出口を開設したキャップ本体と、このキャップ本体の注出口を開閉する外キャップ体とから構成され、廃棄時に分別回収が有利であるように構成した、不正開封防止機能付き合成樹脂製注出キャップに関するものである。
【０００２】
【従来の技術】
合成樹脂製壜容器の再利用を効率よく実施できるようにするために、廃棄される合成樹脂製品を分別回収することが求められており、その一つとして、壜容器の壜口筒に組付けられて注出口を形成する注出キャップを、壜容器の破棄時に、壜容器から簡単に分離できるようにした従来技術として、特開平１１−２５５２５１号公報に開示された技術がある。
【０００３】
この従来技術は、壜口筒に、外嵌して乗り越え係止する組付き筒を有し、密嵌装して注出口を形成するキャップ本体と、このキャップ本体に着脱自在に螺合して、キャップ本体の注出口を開閉する外キャップ体とから構成され、キャップ本体の組付き筒の、複数の縦割溝を下端部に設けた、壜口筒との係止機能部分の外周に第１係止部となる係止凹嵌部とを一体に形成し、この組付き筒に外嵌する外キャップ体の外装筒の下端に、複数の破断片を介して、組付き筒の係止凹嵌部に、上方に抜け出し不能に、かつ引き下げ操作により下方に乗り越え可能に係止する第２係止部を有する係止筒を連設して構成されている。
【０００４】
この従来技術にあっては、外キャップ体の外装筒からの係止筒の分離により、不正開封防止作用を発揮するようにし、組付き筒の下端部に対する係止筒の外装係止により、キャップ本体の壜口筒に対する組付きを強固に維持し、組付き筒の下端部から係止筒が、下方に離脱することにより、キャップ本体の壜口筒からの離脱を容易に達成できるようにしている。
【０００５】
【発明が解決しようとする課題】
しかしながら、上記した従来技術にあっては、キャップ本体の組付き筒の下端が露出した状態となっているので、ドライバー等の硬質物の先端部分を、この組付き筒を壜口筒との間に差し込んで、こじり開け状にキャップ本体を壜口筒から分離させることが簡単にできてしまう、と云う問題があった。
【０００６】
また、キャップ本体の組付き筒下端部に、壜口筒に対する係止機能部分と、外キャップ体の第２係止部を嵌合させて係止筒の上昇を阻止するとともに、係止筒の自由移動を阻止して強制移動を許容する第１係止部となる係止凹部とを、一体に形成する必要があり、構造が複雑になる、と云う問題があった。
【０００７】
さらに、破断片の破断後も、係止筒が組付き筒下端部に、破断片の破断前と同じ位置に組付いたままとなるので、破断片の破断前と後とで、組付き筒に対する係合筒の組付き位置に変化がなく、このため外観から破断片の破断を識別することができず、不正開封防止効果が発揮され難い、と云う問題があった。
【０００８】
そこで、本発明は、上記した従来技術における問題点を解消すべく創案されたもので、硬質物を使用した不正なこじり開けを不能とすると共に、構造を簡単にし、さらに不正開封防止効果を明確に発揮できるようにすることを技術的課題とし、もって商品としての安全性を高めると共に、製造コストの低減を無理なく達成することを目的とする。
【０００９】
【課題を解決するための手段】
上記技術的課題を解決する本発明の内、請求項１記載の発明の手段は、壜口筒に、外嵌して乗り越え係止する組付き筒を有し、密嵌装して注出口を形成するキャップ本体を有すること、このキャップ本体に着脱自在に螺合して、キャップ本体の注出口を開閉する有頂筒形状の外キャップ体を有すること、キャップ本体の組付き筒の、壜口筒の係止機能部分に対向する部分の外周面箇所に、第１係止部を、また外周面下端部に引っ掛け突片をそれぞれ形成すること、閉状態で、キャップ本体の組付き筒に外装する外キャップ体の外装筒の下端に、壜口筒のネックリングの外径よりも大きい内径を有し、第１係止部に下方から係止し、かつキャップ本体の引っ掛け突片に上方から係止する第２係止部を設けた係止筒を、複数の破断片を介して一体に連設すること、係止筒が人手による引き下げ力により引っ掛け突片から脱係止可能に、引っ掛け突片の突出高さを低く設定すること、壜口筒に対するキャップ本体の組付き強度を、前記壜口筒に対して空回りすることがない範囲で、人手によるもぎ取り状の取り外しが可能に設定したこと、にある。
【００１０】
注出キャップを壜口筒に組付けた状態では、キャップ本体の注出口を、このキャップ本体に螺合組付きした外キャップ体が密閉し、またキャップ本体の組付き筒に外嵌した外キャップ体の係止筒が、その第２係止部を、キャップ本体の組付き筒の外周面に形成された第１係止部に、下方から係止させている。
【００１１】
この状態から外キャップ体を螺脱回動させると、上昇変位する外キャップ体の本体筒と外装筒の組合せ物に対して、係止筒は、第１係止部と第２係止部との係止により、上昇変位不能となっているので、破断片が破断される。
【００１２】
破断片が破断されると、係止筒は、その第２係止部がキャップ本体の引っ掛かり突片に上方から係止するまで、自重により落下変位して、破断片の破断前とその位置が大きく変化するので、この係止筒の大きな位置変化により、破断片の破断が明確に認識でき、不正開封防止機能が確実に発揮されることになる。
【００１３】
この際、係止筒の内径がネックリングの外径よりも大きいので、係止筒の落下変位動作にネックリングが邪魔となることがなく、係止筒は円滑にかつ確実に落下変位する。
【００１４】
破断片の破断前においては、キャップ本体の組付き筒の下端部に、外キャップ体の係止筒が外嵌しているので、キャップ本体の組付き筒は、妄りには拡径変形することができず、これによりキャップ本体の壜口筒に対する密嵌装組付きが、安定的に維持される。
【００１５】
注出キャップを、壜口筒から分別して回収するに際しては、係止筒に引き下げ力を作用させて、引っ掛け突片に対する第２係止部の弱い係止を解除させ、この係止筒をキャップ本体の組付き筒から下降分離させてから、キャップ本体を掴んで、壜口筒から強引にもぎ取り状に分離させる。
【００１６】
この際、壜口筒に組付いているキャップ本体に、外キャップ体の本体筒と外装筒との組合せ物を螺合組付けしておくと、手による注出キャップの掴みが、良好な状態で達成される。
【００１７】
キャップ本体を壜口筒からもぎ取ったならば、係止筒を壜口筒から引き上げ離脱させて、注出キャップの壜口筒からの分別を完了する。
【００１８】
請求項２記載の発明は、請求項１記載の発明の構成に、壜口筒に対するキャップ本体の組付き強度の設定手段を、組付き筒の肉厚とした、ことを加えたものである。
【００１９】
この請求項２記載の発明にあっては、キャップ本体の組付き筒の肉厚を薄くすると、外力による拡径方向への撓み変形しやすくなり、逆に厚くすると変形しにくくなるので、この肉厚を適正に設定することにより、壜体筒に対するキャップ本体の組付き強度を適正な範囲に設定することが、特別な構造を付加することなく達成される。
【００２０】
請求項３記載の発明は、請求項１記載の発明の構成に、壜口筒に対するキャップ本体の組付き強度の設定手段を、組付き筒の少なくとも下端部に割溝を設けることとした、ことを加えたものである。
【００２１】
請求項３記載の発明にあっては、割溝の個数や、溝長さ等の形状により、外力による組付き筒の拡径方向への撓み変形程度を設定し、壜口筒に対するキャップ本体の組付き強度を適正な範囲に精度高く設定することができる。
【００２２】
請求項４記載の発明は、請求項１、２または３記載の発明の構成に、外キャップ体の係止筒を、キャップ本体の組付き筒の第１係止部から壜口筒のネックリングまでの高さ幅とした、ことを加えたものである。
【００２３】
係止筒が、組付き筒の第１係止部から壜口筒のネックリングまでの高さ幅を有しているので、組付き筒の下端縁とネックリングとの間に形成される隙間が、係止筒により覆い隠されることになり、これにより組付き筒の下端縁とネックリングとの間に形成される隙間に硬質物を差し込んで、注出キャップを壜口筒から不正にこじ開け分離させるのは不可能となる。
【００２４】
請求項５記載の発明は、請求項１、２、３または４記載の発明の構成に、キャップ本体の組付き筒下端縁とネックリングとの間に、硬貨の周端部が侵入可能な間隙を形成した、ことを加えたものである。
【００２５】
この請求項５記載の発明にあっては、力の弱い人でも、硬貨等の身近な硬質物を使用して、キャップ本体の壜口筒からの分離を、こじ開け状に簡単に達成することが可能となる。
【００２６】
請求項６記載の発明は、請求項１、２、３、４または５記載の発明の構成に、第２係止部を含めた係止筒の最小内径値を、壜口筒のネックリングの外径よりも大きい値に設定した、ことを加えたものである。
【００２７】
この請求項６記載の発明にあっては、外キャップ体の係止筒を、キャップ本体の組付き筒の下端部から分離下降させる際に、この係止筒の下降変位にネックリングが邪魔となることがなく、これにより係止筒の組付き筒からの分離が確実となって、組付き筒を確実に拡径変形自在な状態とすると共に、組付き筒とネックリングとの間の間隙を確実に露出させて、硬質物を利用した分別を可能とし、注出キャップを確実にかつ円滑に分別することができる。
【００２８】
請求項７記載の発明は、請求項１、２、３、４、５または６記載の発明の構成に、キャップ本体の第１係止部を、周突条状構造とした、ことを加えたものである。
【００２９】
この請求項７記載の発明にあっては、第１係止部の構造がきわめて簡単なものとなり、また組付き筒の、壜口筒に対する外嵌組付きの主要部分に第１係止部が形成されているので、この主要部分の肉厚を第１係止部の分だけ大きくなり、これにより組付き筒の他の部分の肉厚を小さくすることが可能となる。
【００３０】
請求項８記載の発明は、請求項１、２、３、４、５、６または７記載の発明の構成に、第２係止部を、係止筒の内面に突設した第１係止部に乗り越え可能な周突条とした、ことを加えたものである。
【００３１】
請求項８記載の発明にあっては、第２係止部を、単純形状である周突条としたため、第２係止部の構造が簡単なものとなり、壜口筒、キャップ本体及び外キャップ体の相互組付を精度良くするために、精密に形成する必要がある外キャップ体の形成が容易となる。
【００３２】
請求項９記載の発明は、請求項１、２、４、５、６、７または８記載の発明の構成に、キャップ本体の第１係止部又は外キャップ体の第２係止部のどちらか一方若しくは双方を、断続した周突条状構造とした、ことを加えたものである。
【００３３】
請求項９記載の発明にあっては、キャップ本体に外キャップ体を組み付けた状態で、キャップ本体及び外キャップ体を壜口筒に装着する際に、第１係止部又は第２係止部のどちらか一方又は双方を断続した周突条状構造としたため、肉厚となっている第１係止部又は第２係止部が拡径しやすくなり、外キャップ体を組付けた状態のキャップ本体を壜口筒に組付け易くなる。
【００３４】
なお、断続した周突条状構造とは、対向する二箇所、または等間隔の複数箇所に、周突条が除去されて、途切れた部分を有する周突条状構造をいう。
【００３５】
請求項１０記載の発明は、請求項１、２、３、４、５、６、７または８記載の発明の構成に、第２係止部を、係止筒の内方、かつ、斜め上方に突出した弾性変位可能な複数の弾性片とした、ことを加えたものである。
【００３６】
請求項１０記載の発明にあっては、弾性片である第２係止部が、無理なくキャップ本体の第１係止部を乗り越えて、破断しやすい破断片を破断することなく、下方から確実に弾性片を第１係止部に係止させることができる。
【００３７】
請求項１１記載の発明は、請求項１、２、３、４、５、６、７、８、９または１０記載の発明の構成に、キャップ本体と外キャップ体とを異色とした、ことを加えたものである。
【００３８】
この請求項１１記載の発明にあっては、破断片が破断して、外キャップ体の係止筒が、キャップ本体の引っ掛け突片に係止する位置まで下降変位すると、この下降変位した係止筒と外キャップ体の外装筒との間に、外キャップ体とは異色のキャップ本体の色が露出して目立つので、不正開封防止機能がより効果的に発揮されることになる。
【００３９】
請求項１２記載の発明は、請求項１、２、３、４、５、６、７、８、９、１０または１１記載の発明の構成に、キャップ本体に形成される注出口を、内容液の注出をガイドすべく設けた注出筒の底壁としての封止壁に、閉ループを描く破断溝により区画形成された、プルリング等を有する抜栓部の破断除去により開設される、プルオープン式の注出口とした、ことを加えたものである。
【００４０】
この請求項１２記載の発明にあっては、注出口の開設までの壜容器の密閉を、確実にかつ強固に達成維持することができる。
【００４１】
【発明の実施の形態】
以下、本発明の一実施例を、図面を参照しながら説明する。
注出キャップ１は、ポリプロピレン樹脂もしくは低密度ポリエチレン樹脂製のキャップ本体２と外キャップ体１５とから構成されている。
【００４２】
キャップ本体２は、壜口筒２４に外嵌し、ネックリング２６との間に、硬貨の周端部が侵入できる間隙を形成する高さに成形された組付き筒２の上端に、内鍔状の頂壁７を介して、外周面に螺条を刻設した螺合筒８を起立設し、この螺合筒８の上端に内鍔片１０を介して、上端部をラッパ状に拡径した有底筒状の注出筒１１を連設し、この注出筒１１の底壁である封止壁１２に、閉ループ状に形成された破断溝１４により区画形成された、プルリング等を有する抜栓部１３を形成して構成されている。
【００４３】
壜口筒２４に外嵌する組付き筒３は、その内周面下端部に、壜口筒２４の開口部外周に設けられた係止周条２５に乗り越え係止する係止突条４を設けて、壜口筒２４に対する係止機能部分を構成し、またこの係止突条４に隣接する上位の外周面箇所である、係止周条２５に対向する部分の外周面箇所に、周突条状構造の第１係止部５を形成し、さらに外周面の下端部に、突出高さの低い突条状の引っ掛け突片６を設けている。
【００４４】
キャップ本体２の壜口筒２４への組付き強度は、組付き筒３の肉厚により、壜口筒２４に対して空回りすることがない範囲で、人手によるもぎ取り状の取り外しができる範囲となるように設定している。
【００４５】
なお、螺合筒８から垂下状に延長設されたシール筒９は、壜口筒２４に密嵌入することにより、キャップ本体２の壜口筒２４に対する組付きを、充分に密になるようにしている。
【００４６】
外キャップ体１５は、注出筒１１の開口端に密嵌入する栓筒片１８を下面に垂下設した頂板１６の周端縁から、螺合筒８に螺合する本体筒１７を垂下設し、この本体筒１７の下端に、外鍔片１９を介して、組付き筒３に外嵌する外装筒２０を垂下設し、この外装筒２０の下端に、破断し易い複数の破断片２１を介して、内周面に第１係止部５を乗り越えて下方から強く係止すると共に、引っ掛け突片６に上方から弱く係止する第２係止部２３として周突条２７を設けた係止筒２２を連設して構成されている。
【００４７】
キャップ本体２の第１係止部５の断続した周突条状構造とすると、若しくは、外キャップ体１５の第２係止部２３を断続した周突条２７とすると、又は、キャップ本体２の第１係止部５及び外キャップ体１５の第２係止部２３の周突条２７の双方を断続した周突条状構造とすると、肉厚となるキャップ本体２の第１係止部５若しくは外キャップ体１５の第２係止部２３である周突条２７が、拡径しやすくなり、外キャップ体１５を組付けた状態のキャップ本体２を壜口筒２４に簡単に組付けることができる。
【００４８】
第２係止部２３である周突条２７は、その上下方向の幅が、第１係止部５と引っ掛け突片６との間の間隔よりも充分に小さくなっており、破断片２１を破断した際の係止筒２２の落下変位量をできるだけ大きくなるようにしている。
【００４９】
係止筒２２は、ネックリング２６の外径よりも大きい内径を有しているので、図２の開封前の状態では、その上端部を第１係止部５に略当接させ、その下端部をネックリング２６の外周面に対向させることになり、係止筒２２は、組付き筒３を外側から押さえて、この組付き筒３の妄りな拡径変形の発生を阻止し、これによりキャップ本体２の壜口筒２４に対する安定した嵌装組付きを達成維持する。
【００５０】
また、係止筒２２は、破断片２１の破断時に、ネックリング２６に邪魔されることなく、引っ掛け突片６に係止する位置まで落下変位し、確実な落下変位動作を得ることができる。
【００５１】
係止筒２２は、第１係止部５から壜口筒２４のネックリング２６までの高さ幅を有するため、組付き筒３とネックリング２６との間に形成される間隙を覆い隠し、これによりキャップ本体２を直接こじ開け状に分離させようとする、不正処理を不能としている。
【００５２】
最初に内容液を注出する際には、外キャップ体１５を螺脱方向に回して取り外し、プルリングを引っ張り、抜栓部１３を破断除去するが、この際、係止筒２２が引っ掛け突片６に係止して、組付き筒３に外嵌した状態となっているので、組付き筒３が拡径方向に大きく変形することはなく、係止突条４が係止周条２４を乗り越えて外れることはない。
【００５３】
また、第２係止部２３を含めた係止筒２２の最小内径値は、ネックリング２６の外径よりも大きい値に設定されており、このため係止筒２２が組付き筒３から下方に離脱した際に、図３に二点鎖線で示すように、係止筒２２は、ネックリング２６に邪魔されることなく、下降限まで下降変位して、組付き筒３から確実に分離することができる。
【００５４】
これにより組付き筒３の係止突条４を形成した下端部は、係止筒２２に邪魔されることなく、人手によるもぎ取り状の取り外しができる程度に設定した肉厚の組付き筒３が、人手によるもぎ取り力の作用により、拡径方向に充分に撓み変形し、力の弱い人でも、注出キャップ１の壜口筒２４からのもぎ取り状分別が、円滑に達成される。
【００５５】
また、係止筒２２がネックリング２６に邪魔されることなく下降限まで変位した際に、組付き筒３の下端とネックリング２６との間に形成された間隙が露出する状態となるため、図３に二点鎖線で示すように、この間隙に、硬貨の周端部等の身近な硬質物の先端部を差し込み、これで組付き筒３を拡径方向にこじ開けるようにして、注出キャップ１を簡単に分別できる。
【００５６】
図４及び図５に示す、第２実施例は、壜口筒２４に対するキャップ本体２の組付き強度を、キャップ本体２の組付き筒３の下端部に設けた割溝４ａにより設定した構成である。割溝４ａの形成にあたっては、壜口筒２４に対するキャップ本体２の組付き強度が適正な範囲となり、かつ、弱いもぎ取り作用によってキャップ本体２のもぎ取りが可能となる範囲となるように、個数のみならず、長さ、幅等を、壜体容器全体の構造、使用状態を考慮しながら設計する必要がある。
【００５７】
注出キャップ１をもぎ取り状に分別すると、弱いもぎ取り力であっても、組付き筒３が割溝４ａにより拡径方向に充分に撓み変形するため、注出キャップ１の壜口筒２４からのもぎ取り状分別が簡単に達成される。
【００５８】
図６及び図７に示す、第３実施例は、外キャップ体１５の係止筒２２に設けた第２係止部を、係止筒２２の内方、かつ、斜め上方に突設した弾性片２８とした構成である。
【００５９】
弾性片２８は、係止筒２２の下端部に、下方から上方に切り込みを形成して、複数のフラップ片状としたものを、ネックリング２６の高さ位置で、係止筒２２の内方の斜め上方に突出するように折り曲げて形成している。なお、弾性片２８は、係止筒２２の内周面の下部から斜め上方に向けた複数の突片を突設したものでもよい。
【００６０】
キャップ本体２を外キャップ体１５に組付ける際は、図６に示すように、弾性片２８が弾性変位し、係止筒２２に連設されている破断し易い複数の破断片２１を破断することなく、無理なく、第１係止部５を乗り越えて、キャップ本体２に外キャップ体１５を螺合組付けする。
【００６１】
破断片２１の破断時には、図７に示すように、第１係止部５の下方から確実に係止し、係止筒２２の上昇を阻止しているので、破断片２１が確実に破断され、ネックリング２６に邪魔されることなく、引っ掛け突片６に係止する位置まで、係止筒２２が落下変位し、組付き筒３を外側から押さえて、キャップ本体２の壜口筒２４に対する安定した嵌装組付きを達成維持するとともに、組付き筒３とネックリング２６との間に形成される間隙を覆いかくして、キャップ本体２を直接こじ開け状に分離させようとする不正処理を、不能とする。
【００６２】
さらに、注出キャップ１を壜口筒２４から分別して回収する際には、図７に二点鎖線で示すように、係止筒２２に引き下げ力を作用させ、弾性片２７と引っ掛け突片６との弱い係止力を解除させて、係止筒２２を下降限まで下降させ、キャップ本体２を掴んで壜口筒２４から、注出キャップをもぎ取り状に分離できる。
【００６３】
【発明の効果】
本発明は、上記した構成となっているので、以下に示す効果を奏する。
請求項１記載の発明にあっては、キャップ本体の壜口筒に対する組付き強度を、人手によるもぎ取り状の取り外しができる程度としたので、注出キャップの壜口筒からの分別を、簡単に達成することができる。
【００６４】
また、壜口筒に対する係止機能部分と、キャップ本体と外キャップ体との係止機能部分とを全く別個に形成し、かつ組付き筒を撓み変形を利用した分別が可能な単純円筒状に構成したので、その構造を簡単なものとするこができ、もって簡単にかつ安価に製造することができる。
【００６５】
そして、外キャップ体の係止筒は、破断片の破断後に、組付き筒の引っ掛け突片に係止するまで下降変位するので、この下降変位により破断片の破断を明確に認識させることができ、もって不正開封防止機能を明確に発揮することができ、壜容器の安全性を高めることができる。
【００６６】
請求項２記載の発明にあっては、キャップ本体の組付き強度の設定手段を、組付き筒の肉厚としており、特別な構造を付加することなく、組付き強度を制御することができる。
【００６７】
請求項３記載の発明にあっては、割溝を設ける方法であり、壜体容器の構造、使用方法に応じて、組付き強度を適正な範囲に精度高く設定することができる。
【００６８】
請求項４記載の発明にあっては、外キャップ体の係止筒が、キャップ本体の組付き筒の下端と壜口筒のネックリングとの間の間隙を覆い隠すので、硬質物を使用しての注出キャップの不正分別を困難なものとすることができ、これにより注出キャップを組付けた壜容器の安全性を、充分に高めることができる。
【００６９】
請求項５記載の発明にあっては、硬貨等の身近な硬質物を使用して、キャップ本体の壜口筒からの分離を簡単に達成することができるので、注出キャップの分別回収を、大きな力を要することなく、簡単に行なうことができる。
【００７０】
請求項６記載の発明にあっては、組付き筒から分離した係止筒の下降変位を、ネックリングに邪魔されることなく、確実に得ることができるので、係止筒の組付き筒からの不完全分離による、注出キャップの分別不良、または組付き筒とネックリングとの間の間隙を開放できないことにより、硬質物を利用した注出キャップ分別処理ができない、と云う不都合の発生がなく、確実にかつ円滑に注出キャップを分別処理することができる。
【００７１】
請求項７記載の発明にあっては、キャップ本体と外キャップ体との間の係止構造をより簡単化させることができると共に、組付き筒の肉薄化を促進することができ、その分、経済的となる。
【００７２】
請求項８記載の発明にあっては、第２係止部を単純形状である周突条としたので、構造が簡単となり、キャップ体の形成が容易となる。
【００７３】
請求項９記載の発明にあっては、第１係止部又は第２係止部のどちらか一方又は双方を断続した周突条状構造としたため、肉厚部分となっている第１係止部又は第２係止部が拡径しやすくなり、外キャップ体を組付けた状態のキャップ本体の壜口筒への組付けが容易となる。
【００７４】
請求項１０記載の発明にあっては、第２係止部を弾性片としたので、破断し易い破断片を破壊することなく、無理なく外キャップ体をキャップ本体に螺合組付けし、確実に破断片を第１係止部に係止させることができる。
【００７５】
請求項１１記載の発明にあっては、破断片の破断を、注出キャップの外観の色分布変化として現出するので、きわめて高い不正開封防止効果を発揮する。
【００７６】
請求項１２記載の発明にあっては、注出口開設までの壜容器の密閉を強固に確実に達成維持することができ、もってより高い安全性を得ることができる。
【図面の簡単な説明】
【図１】本発明の一実施例を示す、組立て前の全体斜視図。
【図２】図１に示した実施例の、外キャップ体螺脱前の半縦断面図。
【図３】図１に示した実施例の、外キャップ体螺脱後の半縦断面図。
【図４】本発明の第２実施例を示す、キャップ本体２の斜視図。
【図５】図４に示した実施例の、外キャップ体螺脱前の半縦断面図。
【図６】本発明の第３実施例を示す、外キャップ体螺脱前の半縦断面図。
【図７】図６に示した実施例の、外キャップ体螺脱後の半縦断面図。
【符号の説明】
１；注出キャップ
２；キャップ本体
３；組付き筒
４；係止突条
４ａ；割溝
５；第１係止部
６；引っ掛け突片
７；頂壁
８；螺合筒
９；シール筒
１０；内鍔片
１１；注出筒
１２；封止壁
１３；抜栓部
１４；破断溝
１５；外キャップ体
１６；頂板
１７；本体筒
１８；栓筒片
１９；外鍔片
２０；外装筒
２１；破断片
２２；係止筒
２３；第２係止部
２４；壜口筒
２５；係止周条
２６；ネックリング
２７；周突条
２８；弾性片[0001]
BACKGROUND OF THE INVENTION
The present invention is composed of a cap body that is assembled to the casing's mouth tube and has an outlet for the content liquid, and an outer cap body that opens and closes the outlet of the cap body. The present invention relates to a synthetic resin pouring cap with an unauthorized opening prevention function configured as described above.
[0002]
[Prior art]
In order to make it possible to efficiently reuse the plastic container made of plastic, it is required to collect and collect the synthetic resin products to be discarded. A technique disclosed in Japanese Patent Application Laid-Open No. 11-255251 is known as a prior art in which a pouring cap that forms a spout can be easily separated from a soot container when the soot container is discarded.
[0003]
In this prior art, a cap body that has an assembled tube that is fitted over and locked over a mouth tube, and a cap body that is closely fitted to form a spout, is detachably screwed into the cap body. An outer cap body that opens and closes the spout of the cap body, and is provided on the outer periphery of the locking function portion of the cap body assembly with a plurality of vertical dividing grooves at the lower end portion. A locking concave fitting portion that is one locking portion is formed integrally, and the assembled cylinder is locked to the lower end of the outer cylinder of the outer cap body that is externally fitted to the assembled cylinder via a plurality of broken pieces. A locking cylinder having a second locking portion that is locked to the recessed fitting portion so as not to be able to be pulled out upward and to be able to climb over by a lowering operation is provided continuously.
[0004]
In this prior art, the locking cylinder is separated from the outer cylinder of the outer cap body so as to exert an unauthorized opening preventing action, and the cap is locked by the outer locking of the locking cylinder to the lower end portion of the assembled cylinder. The assembly of the main body with respect to the mouth tube is firmly maintained, and the locking tube is detached downward from the lower end of the assembly tube so that the cap body can be easily detached from the mouth tube. Yes.
[0005]
[Problems to be solved by the invention]
However, in the above-described prior art, since the lower end of the cap body assembly cylinder is exposed, the tip of a hard object such as a screwdriver is placed between the assembly cylinder and the mouthpiece cylinder. There is a problem that the cap body can be easily separated from the mouth tube in a pry-up manner.
[0006]
In addition, the locking function portion for the shed tube and the second locking portion of the outer cap body are fitted to the assembled cylinder lower end of the cap body to prevent the locking cylinder from rising, There is a problem that it is necessary to integrally form a locking recess that serves as a first locking portion that prevents free movement and allows forced movement, which complicates the structure.
[0007]
Further, even after the broken piece breaks, the locking cylinder remains attached to the lower end of the assembled cylinder at the same position as before the broken piece breaks. There is no change in the assembly position of the engagement cylinder with respect to the above, and therefore there is a problem that it is difficult to identify the breakage of the broken piece from the appearance, and it is difficult to exhibit the effect of preventing unauthorized opening.
[0008]
Therefore, the present invention was devised to solve the above-described problems in the prior art, making it impossible to illegally pry open using a hard material, simplifying the structure, and clarifying the effect of preventing unauthorized opening. It is a technical problem to make it possible to achieve this, and it is intended to increase the safety as a product and reduce the manufacturing cost without difficulty.
[0009]
[Means for Solving the Problems]
Of the present invention for solving the above technical problems, the means of the present invention according to claim 1 has an assembled tube that is fitted over and locked onto the mouth tube, and is tightly fitted to form the spout. Having a cap body to be formed, having a cap-shaped outer cap body that is detachably screwed to the cap body to open and close the spout of the cap body, At the outer peripheral surface portion of the portion facing the locking function portion of the cylinder, the first locking portion and the lower end of the outer peripheral surface To pull In the closed state, forming the hooking projecting piece, at the lower end of the outer cylinder of the outer cap body that covers the assembled cylinder of the cap body, has an inner diameter that is larger than the outer diameter of the neck ring of the hook cylinder, Locked to the first locking part from below and on the hook protrusion of the cap body Staff Continuously connecting the locking cylinder provided with the second locking portion to be stopped via a plurality of broken pieces; Setting the protruding height of the hooking protrusion low so that the locking cylinder can be unlocked from the hooking protrusion by manual pull-down force; As long as the strength of the cap body with respect to the throat tube is not idle with respect to the throat tube, it can be removed manually. Possible It has been set.
[0010]
In the state where the extraction cap is assembled to the mouth tube, the outer cap body that is screwed into the cap body is hermetically sealed at the outlet of the cap body, and the outer cap that is externally fitted to the assembly cylinder of the cap body. The locking cylinder of the body locks the second locking portion from below with the first locking portion formed on the outer peripheral surface of the cap-attached cylinder of the cap body.
[0011]
When the outer cap body is screwed off and rotated from this state, the locking cylinder has a first locking portion and a second locking portion with respect to the combination of the main body cylinder and the outer cylinder of the outer cap body that is displaced upward. Since the upward displacement is impossible due to the locking, the broken piece is broken.
[0012]
When the broken piece is broken, the locking cylinder is dropped and displaced by its own weight until the second locking portion is locked to the hooked projecting piece of the cap body from above, and the position before the broken piece breaks and its position is reduced. Since it greatly changes, the large change in the position of the locking cylinder makes it possible to clearly recognize the breakage of the broken piece and to ensure that the function of preventing unauthorized opening is exhibited.
[0013]
At this time, since the inner diameter of the locking cylinder is larger than the outer diameter of the neck ring, the neck ring does not interfere with the drop displacement operation of the locking cylinder, and the locking cylinder is smoothly and reliably dropped and displaced.
[0014]
Before the broken piece breaks, the cap cylinder of the outer cap body is externally fitted to the lower end of the cap body assembled cylinder. As a result, the tightly fitted assembly of the cap body with respect to the mouth tube is stably maintained.
[0015]
When separating and collecting the dispensing cap from the mouth tube, a pulling force is applied to the locking cylinder to release the weak locking of the second locking portion with respect to the hooking protrusion, and the locking cylinder is After lowering and separating from the assembled cylinder of the main body, the cap main body is grasped and separated from the mouthpiece cylinder in a forcibly tear-off shape.
[0016]
At this time, if the combination of the body cylinder of the outer cap body and the exterior cylinder is screwed and assembled to the cap body assembled to the mouthpiece cylinder, the gripping of the dispensing cap by hand is in a good state. To be achieved.
[0017]
When the cap body is peeled from the throat tube, the locking tube is pulled up and removed from the throat tube to complete the separation of the dispensing cap from the throat tube.
[0018]
The invention described in claim 2 is obtained by adding the structure of the invention described in claim 1 to the thickness of the assembled cylinder as the setting means for the strength of the assembled assembly of the cap body with respect to the mouthpiece cylinder.
[0019]
In the invention according to claim 2, if the wall thickness of the assembled cylinder of the cap body is thinned, it becomes easy to bend and deform in the diameter expansion direction by an external force, and conversely, if it is thickened, it is difficult to deform. By appropriately setting the thickness, it is possible to set the assembly strength of the cap body with respect to the casing cylinder within an appropriate range without adding a special structure.
[0020]
The invention according to claim 3 is the configuration of the invention according to claim 1, wherein the setting means for setting strength of the cap body with respect to the mouthpiece tube is provided, and a split groove is provided at least at the lower end of the tube with assembly. Is added.
[0021]
In the invention according to claim 3, the degree of bending deformation of the assembled cylinder in the diameter expansion direction due to external force is set by the number of split grooves and the shape of the groove length, etc. The assembly strength can be accurately set within an appropriate range.
[0022]
According to a fourth aspect of the present invention, in the configuration of the first, second or third aspect of the invention, the locking cylinder of the outer cap body is connected from the first locking portion of the assembled cylinder of the cap body to the neck ring of the throat cylinder. It is the thing which made it the height width to.
[0023]
Since the locking cylinder has a height width from the first locking portion of the assembled cylinder to the neck ring of the shed cylinder, a gap formed between the lower end edge of the assembled cylinder and the neck ring Will be concealed by the locking cylinder, which inserts a hard object into the gap formed between the bottom edge of the assembled cylinder and the neck ring, and illegally pry the dispensing cap out of the mouthpiece cylinder. It is impossible to separate them.
[0024]
According to a fifth aspect of the present invention, in the configuration of the first, second, third or fourth aspect of the present invention, a gap in which a peripheral edge of a coin can enter is inserted between the bottom end edge of the assembled cylinder of the cap body and the neck ring. Is added to that.
[0025]
In the invention of claim 5, even a person with weak power can easily achieve separation of the cap body from the throat tube by using a familiar hard object such as a coin. It becomes possible.
[0026]
The invention according to claim 6 is the configuration of the invention according to claim 1, 2, 3, 4 or 5, wherein the minimum inner diameter value of the locking cylinder including the second locking portion is set to the neck ring of the throat cylinder. This is in addition to the fact that it is set to a value larger than the outer diameter.
[0027]
In the invention of claim 6, when the locking cylinder of the outer cap body is separated and lowered from the lower end portion of the assembled cylinder of the cap main body, the neck ring interferes with the downward displacement of the locking cylinder. This ensures the separation of the locking cylinder from the assembled cylinder, ensures that the assembled cylinder is in a state where the diameter of the assembled cylinder can be expanded and deformed, and the gap between the assembled cylinder and the neck ring. Can be reliably exposed to allow separation using a hard material, and the dispensing cap can be reliably and smoothly separated.
[0028]
A seventh aspect of the invention is the same as that of the first, second, third, fourth, fifth or sixth aspect of the invention. , Zhou It is what added it to the ridge-like structure.
[0029]
In the invention according to claim 7, the structure of the first locking portion is extremely simple, and the first locking portion is provided in the main portion of the assembled cylinder with the outer fitting assembly with respect to the mouth tube. Since it is formed, the thickness of this main portion is increased by the amount of the first locking portion, and this makes it possible to reduce the thickness of other portions of the assembled cylinder.
[0030]
According to an eighth aspect of the present invention, in the configuration of the first, second, third, fourth, fifth, sixth or seventh aspect, the second locking portion is provided on the inner surface of the locking cylinder. In addition to the fact that it is a ridge that can get over the club.
[0031]
In the invention according to claim 8, since the second locking portion is a circumferential protrusion having a simple shape, the structure of the second locking portion is simplified, and the shed tube, the cap body, and the outer cap In order to improve the mutual assembly of the bodies, it becomes easy to form an outer cap body that needs to be formed precisely.
[0032]
The invention according to claim 9 is the structure of the invention according to claim 1, 2, 4, 5, 6, 7 or 8, which is either the first locking portion of the cap body or the second locking portion of the outer cap body. One or both of them is an intermittent peripheral ridge structure.
[0033]
According to the ninth aspect of the present invention, when the cap body and the outer cap body are attached to the mouth tube in a state where the outer cap body is assembled to the cap body, the first locking portion or the second locking portion Since either one or both of them have a circumferential ridge-like structure, the first locking portion or the second locking portion that is thicker is likely to expand in diameter, and the outer cap body is assembled. It becomes easy to assemble the cap body to the mouthpiece.
[0034]
In addition, the intermittent circumferential ridge-shaped structure means a circumferential ridge-shaped structure having a discontinuous portion in which the circumferential ridge is removed at two opposing locations or at a plurality of equally spaced locations.
[0035]
The invention according to claim 10 is the structure of the invention according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the second locking portion is located inward of the locking cylinder and obliquely upward. And a plurality of elastically displaceable elastic pieces protruding.
[0036]
In the invention according to claim 10, the second locking portion, which is an elastic piece, easily climbs over the first locking portion of the cap body, and reliably from below without breaking a fractured piece that tends to break. The elastic piece can be locked to the first locking portion.
[0037]
The invention described in claim 11 is characterized in that the cap body and the outer cap body have different colors in the configuration of the invention described in claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. It is added.
[0038]
In the invention of claim 11, when the broken piece is broken and the locking cylinder of the outer cap body is displaced downward to the position where it is locked to the hooking protrusion of the cap body, this downwardly displaced locking is achieved. Since the cap body color different from that of the outer cap body is exposed between the cylinder and the outer cylinder of the outer cap body, the function of preventing unauthorized opening is more effectively exhibited.
[0039]
The invention according to a twelfth aspect is the same as that according to the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, or eleventh aspects. A pull-open type that is established by breaking and removing a plugging portion having a pull ring or the like, which is defined by a breaking groove that draws a closed loop on a sealing wall as a bottom wall of a dispensing cylinder provided to guide the dispensing of This is the addition of that.
[0040]
In the invention according to claim 12, the sealing of the container until the opening of the spout can be reliably and firmly achieved and maintained.
[0041]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The dispensing cap 1 includes a cap body 2 and an outer cap body 15 made of polypropylene resin or low density polyethylene resin.
[0042]
The cap body 2 is externally fitted to the throat cylinder 24, and is attached to the upper end of the assembled cylinder 2 formed at a height that forms a gap between the neck ring 26 and the peripheral edge of the coin. A threaded cylinder 8 having an outer peripheral surface engraved with a thread is erected through an upper wall 7 having a circular shape, and an upper end of the threaded cylinder 8 is widened in a trumpet shape via an inner flange piece 10. The bottomed cylindrical pouring cylinder 11 having a diameter is continuously provided, and a pull ring or the like that is partitioned by a breaking groove 14 formed in a closed loop shape is formed on the sealing wall 12 that is the bottom wall of the pouring cylinder 11. The stopper part 13 is formed and configured.
[0043]
The assembled cylinder 3 that is fitted around the throat tube 24 has a locking ridge 4 that is engaged with and locked over a locking rim 25 provided on the outer periphery of the opening of the throat tube 24 at the lower end portion of the inner peripheral surface thereof. Provided on the outer peripheral surface portion of the portion facing the locking circumferential line 25, which constitutes a locking function portion for the throat tube 24 and is an upper outer peripheral surface portion adjacent to the locking protrusion 4. A first locking portion 5 having a ridge-like structure is formed, and a ridge-like hooking protrusion piece 6 having a low protrusion height is provided at the lower end portion of the outer peripheral surface.
[0044]
The strength with which the cap body 2 is assembled to the throat tube 24 is within a range in which the cap body 2 can be removed by hand as long as it does not idle with respect to the throat tube 24 due to the thickness of the assembled tube 3. It is set as follows.
[0045]
The seal cylinder 9 extending in a hanging manner from the threaded cylinder 8 is tightly fitted into the throat cylinder 24 so that the assembly of the cap body 2 to the throat cylinder 24 is sufficiently dense. ing.
[0046]
The outer cap body 15 is provided with a main body cylinder 17 that is screwed into the screwing cylinder 8 from a peripheral edge of a top plate 16 in which a plug cylinder piece 18 fitted tightly into the opening end of the dispensing cylinder 11 is hung on the lower surface. The outer cylinder 20 that is externally fitted to the assembled cylinder 3 is suspended from the lower end of the main body cylinder 17 via the outer flange piece 19, and a plurality of fracture pieces 21 that are easily broken are provided at the lower end of the outer cylinder 20. In this manner, the first engaging portion 5 is passed over the inner peripheral surface and strongly engaged from below, and the peripheral protrusion 27 is provided as the second engaging portion 23 that is weakly engaged with the hooking projection piece 6 from above. A stop tube 22 is provided continuously.
[0047]
If the first locking portion 5 of the cap body 2 has an intermittent circumferential ridge structure, or if the second locking portion 23 of the outer cap body 15 is an intermittent circumferential ridge 27, or The first locking portion 5 of the cap main body 2 that is thick when the circumferential locking ridge structure in which both the first locking portion 5 and the peripheral protruding stripe 27 of the second locking portion 23 of the outer cap body 15 are interrupted. Or the peripheral protrusion 27 which is the 2nd latching | locking part 23 of the outer cap body 15 becomes easy to expand in diameter, and the cap main body 2 of the state which assembled | attached the outer cap body 15 is easily assembled | attached to the mouthpiece cylinder 24. FIG. Can do.
[0048]
The circumferential protrusion 27 which is the second locking portion 23 has a width in the vertical direction that is sufficiently smaller than the interval between the first locking portion 5 and the hooking protrusion 6, The amount of displacement of the locking cylinder 22 when broken is made as large as possible.
[0049]
Since the locking cylinder 22 has an inner diameter larger than the outer diameter of the neck ring 26, in the state before opening in FIG. The locking cylinder 22 presses the assembled cylinder 3 from the outside to prevent the occurrence of an unusually large diameter deformation of the assembled cylinder 3, thereby causing the locking cylinder 22 to face the outer peripheral surface of the neck ring 26. A stable fitting assembly with respect to the mouthpiece cylinder 24 of the cap body 2 is achieved and maintained.
[0050]
Further, when the broken piece 21 is broken, the locking cylinder 22 is dropped and displaced to a position where the locking cylinder 22 is locked to the hooking protrusion 6 without being obstructed by the neck ring 26, and a reliable drop displacement operation can be obtained.
[0051]
The locking cylinder 22 is Since it has a height width from the first locking portion 5 to the neck ring 26 of the mouthpiece cylinder 24, the gap formed between the assembled cylinder 3 and the neck ring 26 is covered and thereby the cap body 2 is covered. It is impossible to carry out unauthorized processing that attempts to separate the swords directly into a pry-up form.
[0052]
When the content liquid is poured out for the first time, the outer cap body 15 is removed by turning in the screwing direction, the pull ring is pulled, and the plugging portion 13 is removed by breakage. The assembled cylinder 3 is not greatly deformed in the diameter-expanding direction, and the locking protrusion 4 gets over the locking peripheral line 24. It will not come off.
[0053]
Further, the minimum inner diameter value of the locking cylinder 22 including the second locking portion 23 is set to a value larger than the outer diameter of the neck ring 26, so that the locking cylinder 22 is located below the assembled cylinder 3. 3, as shown by a two-dot chain line in FIG. 3, the locking cylinder 22 is moved down to the lower limit without being obstructed by the neck ring 26, and is reliably separated from the assembled cylinder 3. be able to.
[0054]
As a result, the lower end portion of the assembled cylinder 3 formed with the locking projection 4 is not obstructed by the locking cylinder 22, and the thick assembled cylinder 3 is set to such an extent that it can be removed by hand. By the action of the tearing force by the hand, it is sufficiently bent and deformed in the diameter-expanding direction, so that even a person with weak force can smoothly achieve the tearing-off separation from the throat tube 24 of the dispensing cap 1.
[0055]
Further, when the locking cylinder 22 is displaced to the lower limit without being obstructed by the neck ring 26, the gap formed between the lower end of the assembled cylinder 3 and the neck ring 26 is exposed, As shown by a two-dot chain line in FIG. 3, a tip of a familiar hard object such as a peripheral edge of a coin is inserted into this gap, and the assembly cylinder 3 is then opened in the diameter-expanding direction. Cap 1 can be easily separated.
[0056]
The second embodiment shown in FIGS. 4 and 5 has a configuration in which the strength of the assembly of the cap body 2 with respect to the mouthpiece cylinder 24 is set by the dividing groove 4a provided at the lower end of the assembly tube 3 of the cap body 2. is there. In the formation of the split groove 4a, the number of the cap body 2 with respect to the throat tube 24 is within an appropriate range, and the cap body 2 can be stripped by a weak stripping action. First, it is necessary to design the length, width, etc. in consideration of the overall structure and usage of the housing.
[0057]
When the dispensing cap 1 is separated into a tear-off shape, the assembled tube 3 is sufficiently bent and deformed in the diameter-expanding direction by the dividing groove 4a even if the tearing force is weak. Detachable separation is easily achieved.
[0058]
In the third embodiment shown in FIGS. 6 and 7, the second locking portion provided on the locking cylinder 22 of the outer cap body 15 protrudes inward of the locking cylinder 22 and obliquely upward. The configuration is a piece 28.
[0059]
The elastic piece 28 is formed by forming a plurality of flap pieces in the lower end portion of the locking cylinder 22 from the bottom to the inside of the locking cylinder 22 at the height of the neck ring 26. It is formed by bending so as to protrude obliquely upward. The elastic piece 28 may be formed by projecting a plurality of projecting pieces obliquely upward from the lower part of the inner peripheral surface of the locking cylinder 22.
[0060]
When the cap body 2 is assembled to the outer cap body 15, as shown in FIG. 6, the elastic piece 28 is elastically displaced, and a plurality of breakable pieces 21 connected to the locking cylinder 22 that are easily broken are broken. Without overreaching, the outer cap body 15 is screwed and assembled to the cap body 2 over the first locking portion 5.
[0061]
When the broken piece 21 is broken, as shown in FIG. 7, the broken piece 21 is reliably broken from below the first locking portion 5 to prevent the locking cylinder 22 from being lifted. The locking cylinder 22 falls and displaces to the position where it is locked to the hooking protrusion 6 without being obstructed by the neck ring 26, and the assembled cylinder 3 is pressed from the outside, so that In addition to achieving and maintaining a stable fitting assembly, the gap formed between the assembly cylinder 3 and the neck ring 26 is covered, and unauthorized processing that attempts to separate the cap body 2 directly in an open manner is impossible. And
[0062]
Further, when the dispensing cap 1 is separated and collected from the mouthpiece cylinder 24, a pulling force is applied to the locking cylinder 22 as shown by a two-dot chain line in FIG. The locking cylinder 22 is lowered to the lower limit, the cap body 2 is grasped, and the pouring cap can be separated from the throat cylinder 24 in a tear-off shape.
[0063]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be obtained.
In the first aspect of the invention, the strength of the cap body with respect to the throat tube is set to such an extent that it can be removed by hand, so that the separation of the pouring cap from the throat tube can be easily performed. Can be achieved.
[0064]
In addition, the locking function portion for the mouth tube and the locking function portion of the cap body and the outer cap body are formed completely separately, and the assembled tube is formed into a simple cylindrical shape that can be separated using bending deformation. Since it is configured, the structure can be simplified, so that it can be manufactured easily and inexpensively.
[0065]
The locking cylinder of the outer cap body is displaced downward until it is locked to the hooked projecting piece of the assembled cylinder after the broken piece is broken, so that the broken piece can be clearly recognized by this downward displacement. Therefore, the tamper-evident prevention function can be clearly demonstrated, and the safety of the container can be improved.
[0066]
In the invention described in claim 2, the assembly strength setting means of the cap main body is the thickness of the assembly cylinder, and the assembly strength can be controlled without adding a special structure.
[0067]
The invention according to claim 3 is a method of providing a split groove, and the assembly strength can be accurately set within an appropriate range according to the structure and usage of the housing container.
[0068]
In the invention according to claim 4, since the locking cylinder of the outer cap body covers the gap between the lower end of the assembled cylinder of the cap body and the neck ring of the mouthpiece cylinder, a hard object is used. Therefore, it is possible to make it difficult to illegally separate all of the pouring caps, and thus it is possible to sufficiently increase the safety of the container with the pouring caps assembled thereto.
[0069]
In the invention of claim 5, it is possible to easily separate the cap body from the throat tube using a familiar hard object such as a coin. It can be done easily without requiring great force.
[0070]
In the invention according to claim 6, since the downward displacement of the locking cylinder separated from the assembled cylinder can be reliably obtained without being obstructed by the neck ring, from the assembled cylinder of the locking cylinder Incomplete separation of the extraction cap due to incomplete separation of the cap, or inconvenience that the extraction cap separation processing using a hard material cannot be performed because the gap between the assembled cylinder and the neck ring cannot be opened. Therefore, it is possible to separate the dispensing cap reliably and smoothly.
[0071]
In the invention of claim 7, the locking structure between the cap body and the outer cap body can be simplified, and the thinning of the assembled cylinder can be promoted. It becomes economical.
[0072]
In the invention according to claim 8, since the second locking portion is a circumferential protrusion having a simple shape, the structure becomes simple and the cap body can be easily formed.
[0073]
In the invention according to claim 9, since the circumferential protrusion-like structure in which either one or both of the first locking portion and the second locking portion is interrupted, the first locking which is a thick portion. The diameter of the portion or the second locking portion is easily increased, and the cap body in the state in which the outer cap body is assembled can be easily assembled to the mouth tube.
[0074]
In the invention according to claim 10, since the second locking portion is made of an elastic piece, the outer cap body is screwed and assembled to the cap body without difficulty without destroying the easily broken piece. The broken piece can be locked to the first locking portion.
[0075]
In the invention according to the eleventh aspect, since the breakage of the broken piece appears as a change in the color distribution of the appearance of the pouring cap, an extremely high tampering prevention effect is exhibited.
[0076]
In the invention according to claim 12, the sealing of the soot container up to the opening of the spout can be achieved and maintained firmly, so that higher safety can be obtained.
[Brief description of the drawings]
FIG. 1 is an overall perspective view before assembly, showing an embodiment of the present invention.
FIG. 2 is a half longitudinal sectional view of the embodiment shown in FIG. 1 before the outer cap body is screwed off.
FIG. 3 is a half longitudinal sectional view of the embodiment shown in FIG. 1 after the outer cap body is screwed off.
FIG. 4 is a perspective view of a cap body 2 showing a second embodiment of the present invention.
5 is a half longitudinal sectional view of the embodiment shown in FIG. 4 before the outer cap body is screwed off.
FIG. 6 is a half vertical cross-sectional view of the third embodiment of the present invention before the outer cap body is screwed off.
7 is a half longitudinal sectional view of the embodiment shown in FIG. 6 after the outer cap body is screwed off.
[Explanation of symbols]
1; Extraction cap
2; Cap body
3; Tube with assembly
4; Locking ridge
4a; Split groove
5; 1st latching | locking part
6】 Hooking piece
7; Top wall
8; Screwed tube
9; Seal tube
10; Inner piece
11;
12; Sealing wall
13; Unplugging part
14; Breaking groove
15; outer cap body
16; Top plate
17; Body cylinder
18; Plug piece
19;
20; exterior cylinder
21; Fragment
22; Locking cylinder
23; second locking portion
24;
25;
26; Neck ring
27;
28; elastic piece

Claims

A cap body (2) that has an assembled tube (3) that fits over and locks onto the throat tube (24), and is tightly fitted to form a spout, and the cap body (2) Consists of a cap-shaped outer cap body (15) that is detachably screwed to open and close the spout, and the assembled cylinder (3)
Formation of the bottle mouth tube first engaging portion on the outer peripheral surface portion of the opposing portion locking function portion (24) to (5), also a protrusion (6) over Tsu pull on the outer peripheral surface lower portion, respectively In the closed state, at the lower end of the outer cylinder (20) of the outer cap body (15) that covers the assembled cylinder (3), the outer diameter of the neck ring (26) of the throat cylinder (24) has a larger inner diameter, said first engaged from below with the engaging portion (5), and the hook locking provided with the projecting piece second locking portion to the upper or al locking in (6) (23) The cylinder (22) is integrally connected via a plurality of broken pieces (21), and the locking cylinder (22) is detachable from the hooking projection piece (6) by a pulling-down force manually. The projecting height of the hook projecting piece (6) is set low, and the assembled strength of the cap body (2) with respect to the mouthpiece cylinder (24) is not idle with respect to the mouthpiece cylinder (24). In the range, it is possible to remove the tear-off shape manually. Synthetic resin pouring cap.

The synthetic resin pouring cap according to claim 1, wherein the means for setting the assembled strength of the cap body (2) with respect to the shed tube (24) is the thickness of the assembled tube (3).

2. The synthetic resin product according to claim 1, wherein the setting means for setting the strength of the cap body (2) with respect to the mouth tube (24) is provided with a split groove (4 a) at least at the lower end of the tube (3). Pouring cap.

The locking cylinder (22) of the outer cap body (15) has a height width from the first locking portion (5) of the assembled cylinder (3) to the neck ring (26) of the throat cylinder (24). A synthetic resin pouring cap according to claim 1, 2, or 3.

The synthetic resin pouring cap according to claim 1, 2, 3, or 4, wherein a gap is formed between the lower end edge of the assembled cylinder (3) and the neck ring (26) so that the peripheral edge of the coin can enter. .

The minimum inner diameter value of the locking cylinder (22) including the second locking portion (23) is set to a value larger than the outer diameter of the neck ring (26). Synthetic resin pouring cap.

The synthetic resin pouring cap according to claim 1, 2, 3, 4, 5 or 6, wherein the first locking portion (5) has a circumferential ridge structure.

The second locking portion (23) is a circumferential protrusion (27) protruding from the inner surface of the locking cylinder (22) and capable of getting over the first locking portion (5). 4. A synthetic resin pouring cap according to 4, 5, 6 or 7.

9. The first locking portion (5) or the second locking portion (23), wherein one or both of them is an intermittent circumferential ridge structure. Synthetic resin pouring cap.

The second locking portion (23) is a plurality of elastically displaceable elastic pieces (28) protruding inward and obliquely upward of the locking cylinder (22). 5. A synthetic resin pouring cap according to 5, 6, 7 or 8.

The synthetic resin pouring cap according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, wherein the cap body (2) and the outer cap body (15) are different colors.

The spout formed in the cap body (2) has a breaking groove (14) that draws a closed loop on the sealing wall (12), which is the bottom wall of the dispensing cylinder (11) provided to guide the dispensing of the content liquid. And a pull-open type spout opened by breaking and removing the plugging portion (13) having a pull ring or the like formed by A synthetic resin pouring cap according to 9, 10 or 11.