JP4297542B2

JP4297542B2 - Hinge cap with virgin mechanism

Info

Publication number: JP4297542B2
Application number: JP04839799A
Authority: JP
Inventors: 憲三手嶋; 幸知柚原
Original assignee: Yoshida Industries Co Ltd
Current assignee: Yoshida Industries Co Ltd
Priority date: 1999-02-25
Filing date: 1999-02-25
Publication date: 2009-07-15
Anticipated expiration: 2019-02-25
Also published as: JP2000238825A

Description

【０００１】
【発明の属する技術分野】
本発明は、容器の口部に装着されてその開口を密閉し、容器の開封時に切断開封される中栓と、この中栓を包囲して装着され、内容物の抽出口としての開口を有する蓋本体と、この蓋本体にヒンジを介して蝶着されて、前記開口を開閉自在に覆う蓋部材とを備えたバージン機構付きヒンジキャップに関する。
【０００２】
【従来の技術】
従来より、使用開始までは完全に容器の密閉状態を維持して、その内容物の劣化や異物の混入などの悪戯を防止でき、使用開始以降には内容物に影響がないレベルの密閉状態を維持しつつ、その内容物を自由に取り出すことのできる、容器のキャップとしてバージン機構付きヒンジキャップがある。
【０００３】
このバージン機構付きヒンジキャップは、容器の口部外周に装着されてその口部開口を密閉する中栓を有し、この中栓には前記口部の内径部に沿って切断開封される薄膜部が形成されている。この中栓の外周面にはネジが形成されており、これに螺合装着されて蓋本体が設けられている。この蓋本体は上記中栓に筒部が螺合し、この筒部の上部には天板が一体形成されていて、この天板には中央に開口が設けられているとともに、前記中栓の薄膜部に臨んで垂下形成されて先端に鋭部を有する中栓開封手段が設けられている。また、上記蓋本体の後部には、これに蝶着されて前記天板開口を開閉自在に覆う有蓋筒体状をなす蓋部材が設けられている。この蓋部材の上部蓋板部の裏面には、閉止状態で前記蓋本体の開口を密封するシール部が設けられている。
【０００４】
即ち、このバージン機構付きヒンジキャップは、前記蓋本体を前記中栓にねじ込むことで、前記鋭部を前記中栓の薄膜部に当接させ、当該薄膜部を切断開封する構成であり、前記中栓を開封するまでは完全に密閉状態を維持でき、開封後も、前記蓋部材を閉止して、蓋本体の開口を前記シール部材でシールすることにより密閉状態を維持することができる一方、前記蓋部材を開放して、その内容物を自由に取り出せるようになっている。
【０００５】
【発明が解決しようとする課題】
ところで、このようなバージン機構付きヒンジキャップが取り付けられた商品にあっては、その内容物の品質保証の面から、店頭に陳列販売されている状態で未開封であることが容易に判別可能であることが、小売業者並びに需用者の双方にとって重要である。
【０００６】
しかしながら、上記従来のようなバージン機構付きヒンジキャップでは、その開封・未開封は、容器内部の中栓の薄膜が切断開封されているか否かを、容器を透して視認せねばならず、非常に見えにくく見誤る虞もあり、確認が容易とはいえなかった。また、前記容器が着色されていたり、不透明であったりすると、容器越しに確認できない場合もある。
【０００７】
このため、確認作業を容易にするために、キャップの周囲を別途フィルムで覆ったり、キャップと容器とにかけてラベル等を貼り付けておき、キャップが開封されればこのフィルムやラベルに必ず破損が生じる様にして、開封を確認できるようにしているものもあるが、このようなフィルムやラベルでは、やはり見誤ることも多々あり、開封・未開封を一見して確実に視認することが難しい。
【０００８】
本発明は以上のような問題点を解決するためになされたものであり、その目的は、前記中栓の開封・未開封を外観の変化から一見して容易にかつ確実に視認可能なバージン機構付きヒンジキャップを提供することにある。
【０００９】
【課題を解決するための手段】
かかる目的を達成するために本発明の請求項１に示すバージン機構付きヒンジキャップは、容器口部の内径に沿って切断開封される薄膜部を有して該口部外周に密閉装着される中栓と、該中栓の外周面に一体に形成されたネジに螺合装着される筒部を有し、該筒部の上部に一体に設けられた天板に開口が形成されるとともに、前記中栓の薄膜部に臨んで該天板から垂下され先端に鋭部を有する中栓開封手段を備えた蓋本体と、該蓋本体の後部に蝶着されて前記天板開口を開閉自在に覆う有蓋筒体状をなし、上部蓋板部の裏面には、閉止状態で前記蓋本体の開口を密封するシール部が設けられた蓋部材とを備え、前記蓋本体を前記中栓にねじ込むことで、前記鋭部を前記中栓の薄膜部に当接させて、薄膜部を切断開封するバージン機構付きヒンジキャップにおいて、前記中栓の下端部外周面に、これより環状に突出して前記筒部の下端部に当接するリング部を設け、該リング部と中栓との境界には、前記筒部の下方向への押し込みにより前記中栓から該リング部を分断させるための薄肉部が形成された構成とした。
【００１０】
上記構成によれば、容器の開封、すなわち中栓の開封は以下のように行われる。蓋本体を中栓に対して一方向へ回す操作により、蓋本体を下方へねじ込む。この時、蓋本体に設けられた中栓開封手段も連動して、回転しつつ中栓の方向に進行する。そして、この中栓開封手段先端の鋭部が、中栓の薄膜部と当接し突き刺さった後、前記薄膜部に沿って回転して薄膜部を切断する。
【００１１】
これと同時並行して、前記蓋本体の筒部の下端部が、前記中栓に設けられた前記リング部上面に当接して前記リング部を下方向に押し込み、この押し込みによりリング部と中栓の境界の薄肉部が破断して、前記中栓から前記リング部が分離される。そして、分離されたリング部は容器の口部下方に落下し、容器のネック部に保持される。したがい、リング部が容器のネック部に分離されて保持されているというキャップの外観上の変化を見ることで、前記容器の中栓が開封されているか否かを容易に一見して確認することができる。また、色ガラスの容器でも容易に中栓の開封・未開封の確認が可能となる。更に、前記リング部を手で触れることでも確認できるため、目の不自由な人や、暗い場所の作業者でも容易に確認することができる。
【００１２】
また、本発明の請求項２に示すバージン機構付きヒンジキャップは、容器口部の内径に沿って切断開封される薄膜部を有して該口部外周に密閉装着される中栓と、該中栓の外周面に一体に形成されたネジに螺合装着される筒部を有し、該筒部の上部に一体に設けられた天板に開口が形成されるとともに、前記中栓の薄膜部に臨んで該天板から垂下され先端に鋭部を有する中栓開封手段を備えた蓋本体と、該蓋本体の後部に蝶着されて前記天板開口を開閉自在に覆う有蓋筒体状をなし、上部蓋板部の裏面には、閉止状態で前記蓋本体の開口を密封するシール部が設けられた蓋部材とを備え、前記蓋本体を前記中栓にねじ込むことで、前記鋭部を前記中栓の薄膜部に当接させて、薄膜部を切断開封するバージン機構付きヒンジキャップにおいて、前記中栓の外周面下端部に、これより環状に突出して前記筒部の下端部に当接するリング部を設けるとともに、該リング部の上面に上方に突出する係止片を適宜間隔で複数設け、該リング部と中栓との境界には、前記中栓から該リング部を分断させるための薄肉部を形成し、前記蓋本体の筒部の下端には、前記係止片に係合して、蓋本体のねじ込みにより、前記リング部に回転力を付与する係合突起を設けた構成とした。
【００１３】
上記構成によれば、容器の開封、すなわち中栓の開封は以下のように行われる。蓋本体を中栓に対して一方向へ回す操作により、蓋本体を下方へねじ込む。この時、蓋本体に設けられた中栓開封手段も連動して、回転しつつ中栓の方向に進行する。そして、この中栓開封手段先端の鋭部が中栓の薄膜部に当接して突き刺さるとともに前記薄膜部に沿って回転して薄膜部を切断する。
【００１４】
これと同時並行して、前記中栓に設けられた前記リング部上面に前記蓋本体の筒部の下端部が当接するとともに、前記リング部上面の係止片と前記筒部下端の係合突起とが係合して、前記リング部には、前記筒部より回転力が付与される。そして、この回転力はリング部と中栓との境界部の薄肉部に伝わり、この回転力に抗しきれずに前記薄肉部が切断されて、前記中栓から前記リング部が分離される。そして、分離されたリング部は容器の口部下方に落下し、容器のネック部にてて保持される。したがい、分離されたリング部が容器のネック部に保持されているというキャップの外観上の変化を見ることで、前記容器の中栓が開封されているかどうか容易に一見して確認することができる。
【００１５】
更に、本発明の請求項３に示すバージン機構付きヒンジキャップは、請求項１若しくは請求項２に記載の薄肉部に、その円周方向に沿って、適宜間隔に空孔が設けられている構成とした。
【００１６】
上記構成によれば、前記薄肉部に適宜間隔に空孔が設けられて、中栓とリング部とは適宜間隔で部分的に結合されているので、前記中栓から前記リング部を分断する際の薄肉部の破断抵抗が小さくなり、中栓開封時の蓋本体のねじ込み抵抗が軽減される。このため、中栓の開封操作に大きな力を必要とせず、非力な人でも容器を容易に開封できる。
【００１７】
【発明の実施の形態】
以下、本発明の好ましい実施の形態につき、添付図面を参照して詳細に説明する。図１は本発明のバージン機構付きヒンジキャップの第１実施形態を示す一部断面分解斜視図であり、図２はそのバージン機構付きヒンジキャップが開封される過程を示す断面図を示し、（ａ）は未開封状態、（ｂ）は開封完了状態、（ｃ）は開封後の使用時の状態を示す。
【００１８】
本第１実施形態のバージン機構付きヒンジキャップ１は、内部に液状物を収納するビン等の容器５０の口部５２外周に装着されて用いられる。そして、このバージン機構付きヒンジキャップ１は、前記容器５０の口部５２外周面に形成された雄ネジ５３に螺合装着されて、該口部５２開口を密閉する中栓１０と、この中栓１０の外周面に一体に形成された雄ネジ１８に螺合装着される円筒状の筒部２２を有する蓋本体２０と、この蓋本体２０の後部にヒンジ３４を介して一体的に蝶着される有蓋筒体状の蓋部材３０とを備える。
【００１９】
中栓１０は樹脂成形により単体形成される。また、蓋本体２０と蓋部材３０とは樹脂成形によって一体形成され、これら蓋本体２０と蓋部材３０とを繋ぐヒンジ３４は折れ曲がり自在に極く薄肉に形成されて構成されている。
【００２０】
前記中栓１０は、中央に凹部１１を有する有蓋の２重筒体状をなし、その外側筒体部１３の下部の内周面に形成された雌ネジ１７が、前記容器５０の口部５２外周面に形成された雄ネジ５３に螺合されて装着される。前記凹部１１は、前記外側筒体部１３に対して同心的に形成され、前記口部５２内周面に嵌入される内側筒状部１９と、その内側筒状部１９の下辺に形成された底部１６とからなり、この底部１６と前記内側筒状部１９との境界には、切断開封される薄膜部１２が円周方向に沿って形成される。すなわち、前記中栓１０を口部５２に螺着して締め込んでいくと、前記凹部１１を形成する内側筒状部１９が前記口部５２の内周面に嵌入されて、口部５２と中栓１０との間の密封性が得られるようになっている。
【００２１】
また、前記中栓１０における外側筒体部１３の下端部外周面には、径方向外方に円環状に突出してリング部４７が設けられ、このリング部４７は、前記蓋本体２０が前記中栓１０に装着された状態で、蓋本体２０の前記筒部２２下端部と当接するか若しくは若干の隙間を有する位置に設定される。
【００２２】
そして、このリング部４７と中栓１０との境界には、前記中栓１０から前記リング部４７が分断されるように円周方向に薄肉部４１が形成される。尚、本実施形態にあっては、前記薄肉部４１には、その円周方向に沿って、適宜間隔に空孔４１ａが設けられ、分断抵抗を軽減して中栓開封時のねじ込み抵抗を軽減している。前記薄肉部４１の肉厚や前記空孔４１ａの長さ、配設間隔等はその容器の使用対象を考慮して設定される。
【００２３】
前記蓋本体２０は円筒状の筒部２２を有し、その内周面に形成された雌ネジ２８はその下方部分のみが、前記中栓１０の外周面に一体に形成された雄ネジ１８に螺合する状態とされている。そして、その筒部２２の下端面内周側には、円環状の凹部２７が、前記リング部４７と嵌合可能にそのリング部４７の外径よりも若干大径に形成される。
【００２４】
また前記筒部２２の上端部には円板状の天板２３が一体に設けられる。そして、その天板２３には、その中央に円形の開口２４が形成されるとともに、この開口２４の内周に沿って隆起する環状縦壁２９が形成されて、この環状縦壁２９の内周部にはさらに径方向内方に縦断面略三角形状を呈して突出する凸条２９ａが環状に形成されている。更に、前記天板２３には、前記中栓１０に装着された状態でその中栓１０の薄膜部１２に臨むようにして、先端に鋭部２５を有した中栓開封手段２６が垂下形成されている。この中栓開封手段２６は、下端が斜断された円筒刃であり、その先端外周側には、断面三角形形状の刃２５が一体に形成されている。前記円筒刃の外径は、前記薄膜部１２の直径と一致するように設定される。また、蓋本体２０の前部側面の上部には、蓋部材３０の開閉操作時に蓋部材３０に指を掛け易くするための緩曲面状の窪み２１を形成している。
【００２５】
前記有蓋筒体状をなす蓋部材３０上部の蓋板部３２の裏面には、上記蓋本体２０の天板２３に形成した環状縦壁２９よりも若干小径な筒状突起３９が設けられている。この筒状突起３９は、蓋部材３０を蓋本体２０に閉止した状態において上記環状縦壁２９内に入り込んで、その外周部が凸条２９ａ先端部に密接して蓋本体２０と蓋部材３０との間のシール性を確保するシール部として機能する。
【００２６】
また、蓋板部３２の裏面側には、その外周縁に沿って下方に延びる筒状部３３が形成されていて、この筒状部３３の下端は、蓋部材３０の閉止状態で蓋本体２０の上面に当接するようになっており、上記ヒンジ３４は、この筒状部３３の下縁の後部中央部と蓋本体２０の上面とを繋いで設けられている。また、蓋部材３０の前部側面の下部、すなわち前記蓋本体２０の窪み２１と対応する位置に、突出した略矩形状の、蓋部材３０開閉操作用指掛け片３３ａが一体に形成されている。
【００２７】
次に、第１実施形態のバージン機構付きヒンジキャップの作用について、図２及び図３を用いて説明する。なお、図３は、前記中栓１０の開封に伴いバージン機構付きヒンジキャップ１のリング部４７が分断される過程を示すもので、中栓１０とリング部４７の境界近傍の要部拡大断面図であり、（ａ）は未分断の状態、（ｂ）は分断直後、（ｃ）は分断後の状態を示す。
【００２８】
本第１実施形態のキャップを使用した容器の開封操作、すなわち中栓１０の開封操作は以下のように行われる。蓋本体２０を中栓１０に対して一方向へ回す操作により、蓋本体２０を下方へねじ込む。この時、蓋本体２０に設けられた中栓開封手段２６も連動して螺旋状に回転進行、すなわち回転しつつ中栓１０の方向に進行する。そして、この中栓開封手段２６の先端の円筒刃２５が、中栓１０の薄膜部１２と当接し突き刺さった後、前記薄膜部１２に沿って回転して薄膜部１２を切断する。
【００２９】
これと同時並行して、前記蓋本体２０の筒部２２における下端の凹部２７が、前記中栓１０に設けられた前記リング部４７上面に嵌合当接して、前記リング部４７を下方向に押し込んでいく。そして、この押し込みの進行に伴い、リング部４７と中栓１０との境界に形成した薄肉部４１がその押し込み力に抗しきれなくなると、当該薄肉部４１に破断が生じ、前記中栓１０から前記リング部４７が分断、離脱される。
【００３０】
そして、分離されたリング部４７は容器の口部下方に落下し、容器５０のネック部５１にて保持される。したがい、分離されたリング部４７が容器５０のネック部５１上に保持されているか否かというキャップの外観上の変化を一見することで、前記容器の中栓１０が開封されているか否かを容易に確認することができる。また、不透明であったり着色されて内部が見えない容器であっても、容易に中栓１０の開封・未開封の確認が可能となる。更に、前記リング部４７を手で触れることでも確認できるため、目の不自由な人や、暗い場所の作業者でも容易に確認することができる。
【００３１】
また、本実施形態においては、中栓１０とリング部４７との境界に形成された薄肉部４１には、その円周方向に沿って矩形状の空孔４１ａが設けられており、前記中栓１０とリング部４７との結合部を部分的に設けているので、リング部４７が分断される際の分断抵抗が軽減され、中栓１０開封時の蓋本体２０のねじ込み抵抗が軽減されるため、中栓１０の開封操作が容易に行える。
【００３２】
次に本発明の第２実施形態を説明する。
【００３３】
図４は、本発明の第２実施形態を示す一部断面分解斜視図で、図５は、中栓が開封される過程を示す断面図であり、（ａ）は未開封状態、（ｂ）は開封完了直後の状態、（ｃ）は使用時の状態を示す。また、図６は、中栓の開封に伴い、リング部が分断される過程を示すもので、中栓とリング部の境界近傍の要部拡大断面図であり、（ａ）は未分断の状態、（ｂ）は分断直後、（ｃ）は分断後の状態を示す。
【００３４】
図示するように、この第２実施形態もその基本的構成は前述の第１実施形態とほぼ同様であり、よって同一の部材には同一の符号を付して、その相違点についてのみ説明する。
【００３５】
図４に示すように、本第２実施形態は、リング部４４の形状および蓋本体２０の筒部２２下端部に形成される凹部２７ｂの形状が異なる点で前述した第１実施形態と相違する。
【００３６】
すなわち、第２実施形態の中栓１０における外側筒体部１３の外周面下端部には、断面Ｌ字の環状のリング部４４が径方向の外方に突出して設けられ、このリング部４４における屈折部の入隅側には、略直方体形状の係止片４８が円周方向に適宜間隔に複数形成されている。
【００３７】
一方、図６に示すように、蓋本体２０の筒部２２における下端部は、その内周面および下端面が前記断面Ｌ字の環状のリング部４４に当接若しくは若干の隙間をもって対向する。更に、前記筒部２２の下端内周面には、前記リング部４４に形成された係止片４８の径方向の突出寸法よりも若干大径に、環状の凹部２７ｂが形成され、この凹部２７ｂには前記係止片４８と係合する、略直方体形状の係合突起２７ｃが、前記係止片と対応する円周方向の位置に形成されている。
【００３８】
次に、第２実施形態の作用について詳細に説明する。
【００３９】
上記構成によれば、容器の開封、すなわち中栓１０の開封は以下のように行われる。蓋本体２０を中栓１０に対して一方向へ回す操作により、蓋本体２０を下方へねじ込む。この時、蓋本体２０に設けられた中栓開封手段２６も連動して螺旋状に回転進行、すなわち回転しつつ中栓１０の方向に進行する。そして、この中栓開封手段２６の先端の円筒刃２５が、中栓１０の薄膜部１２と当接し突き刺さった後、前記薄膜部１２に沿って回転して薄膜部１２を切断する。
【００４０】
これと同時並行して、前記中栓１０に設けられた前記リング部４４に前記蓋本体２０の筒部２２の下端部が当接するとともに、蓋本体２０の回転により前記リング部４４の係止片４８と前記筒部２２の凹部２７ｂ内の係合突起２７ｃとが係合して、前記リング部４４には、前記筒部２２より回転力が付与される。この回転力は、リング部４４と中栓１０の境界部の薄肉部４６に伝わり、当該薄肉部４６がこの回転力に抗しきなくなると破断して、前記中栓１０から前記リング部４４が分断、離脱される。そして、分離されたリング部４４は容器５０の口部下方に落下し、容器５０のネック部５１にて保持される。したがい、分離されたリング部４４が容器５０のネック部５１で保持されているか否かというキャップの外観上の変化を一見することで、前記容器の中栓が開封されているか否かを容易に確認することができる。
【００４１】
【発明の効果】
以上説明したように、請求項１に係る発明のバージン機構付きヒンジキャップによれば、中栓の外周面下端部に、これより環状に突出して、蓋本体の筒部の下端部に当接するリング部を設け、このリング部と中栓との境界には、前記中栓からこのリング部を分断させるための薄肉部を形成したので、中栓の開封時に行う、蓋本体を中栓に対して一方向に回転してねじ込む操作により、前記蓋本体の筒部の下端部が前記リング部を下方向に押し込み、前記薄肉部にて中栓からリング部が分断され、そのリング部は離脱して容器のネック部上に保持される。このため、分離されたリング部が容器のネック部上に保持されているか否かというキャップの外観上の変化を一見することで、前記容器の中栓が開封されているか否かを容易に確認することができる。したがって、店頭で陳列販売されている状態でその開封・未開封の確認が容易になり、店員等の作業負荷の軽減が図れるだけでなく需用者も安心して購買することができる。また、着色されたり不透明である容器であっても容易に中栓の開封・未開封の確認が可能となる。更に、前記リング部を手で触れることによっても確認できるため、目の不自由な人や、暗い場所の作業者でも容易に確認することができるようになる。
【００４２】
また、請求項２に係る発明のバージン機構付きヒンジキャップによれば、中栓の外周面下端部に、これより環状に突出して、蓋本体の筒部の下端部に当接するリング部を設けるとともに、このリング部の上面に係止片を適宜間隔で複数設け、このリング部と中栓との境界には、前記中栓から該リング部を分断させるための薄肉部を形成し、前記蓋本体の筒部の下端には、前記係止片に係合して、前記リング部に回転力を付与する係合突起を設けたので、中栓の開封時に行う、蓋本体を中栓に対して一方向に回転してねじ込む操作により、前記リング部上面の係止片と前記筒部下端の係合突起とが係合して、前記リング部には、前記筒部より回転力が付与されて前記薄肉部が破断され、前記中栓から前記リング部が離脱して当該リング部が容器のネック部上に保持される。したがい、上記と同様に外観上の変化を一見することで、前記容器の中栓の開封・未開封を容易に確認することができる。
【００４３】
更に、請求項３に係る発明のバージン機構付きヒンジキャップによれば、請求項１若しくは請求項２に記載の薄肉部に、その円周方向に沿って、適宜間隔に空孔を設ける構成としたので、中栓からリング部を分断する際の薄肉部の切断抵抗を軽減でき、容器の開封に必要な力の可及的な低減化が図れる。
【図面の簡単な説明】
【図１】本発明に係るバージン機構付きヒンジキャップの第１実施形態を示す一部断面分解斜視図である。
【図２】本発明に係る第１実施形態のバージン機構付きヒンジキャップの中栓が開封される過程を示す断面図を示し、（ａ）は中栓未開封状態、（ｂ）は開封完了状態、（ｃ）は開封後の使用状態を示す。
【図３】本発明に係る第１実施形態の中栓の開封に伴い、リング部が分断される過程を示すもので、中栓とリング部との境界近傍の要部拡大断面図であり、（ａ）は未分断、（ｂ）は分断直後、（ｃ）は分断後の状態を示す。
【図４】本発明に係るバージン機構付きヒンジキャップの第２実施形態を示す一部断面分解斜視図である。
【図５】本発明に係る第２実施形態のバージン機構付きヒンジキャップの中栓が開封される過程を示す断面図を示し、（ａ）は中栓未開封、（ｂ）は開封が完了、（ｃ）は蓋部材を開けて、容器内部の液体等の内容物を取り出すことができる状態を示す。
【図６】本発明に係る第２実施形態の中栓の開封に伴い、リング部が分断される過程を示す、中栓とリング部の境界近傍の要部拡大断面図であり、（ａ）は未分断、（ｂ）は分断直後、（ｃ）は分断後の状態を示す。
第１実施形態の変形例を示す断面図である。
【符号の説明】
１バージン機構付きヒンジキャップ
１０中栓
１２薄膜部
１３外側筒体部
１７雌ネジ
１８雄ネジ
１９内側筒状部
２０蓋本体
２２筒部
２３天板
２４開口
２５鋭部
２６中栓開封手段
３０蓋部材
３２蓋板部
３４ヒンジ
３９筒状突起（シール部材）
４１薄肉部
４７リング部
５０容器
５２口部[0001]
BACKGROUND OF THE INVENTION
The present invention is attached to the mouth portion of a container to seal the opening thereof, and has an opening as a content extraction opening that surrounds and attaches to the inner stopper that is cut and opened when the container is opened. The present invention relates to a hinge cap with a virgin mechanism that includes a lid body and a lid member that is hinged to the lid body via a hinge and covers the opening in an openable and closable manner.
[0002]
[Prior art]
Conventionally, the container can be kept completely sealed until the start of use to prevent mischief such as deterioration of the contents and mixing of foreign substances, and the sealed state at a level that does not affect the contents after the start of use. There is a hinge cap with a virgin mechanism as a container cap that allows the contents to be taken out freely while maintaining.
[0003]
This hinge cap with a virgin mechanism has an inner plug that is attached to the outer periphery of the mouth portion of the container and seals the opening of the mouth portion, and this inner plug has a thin film portion that is cut and opened along the inner diameter portion of the mouth portion. Is formed. A screw is formed on the outer peripheral surface of the inner plug, and a lid body is provided by being screwed onto the inner plug. The lid body has a cylindrical portion screwed onto the inner plug, and a top plate is integrally formed on the upper portion of the cylindrical portion. The top plate has an opening in the center, and An inside plug opening means is provided which is formed to hang down from the thin film portion and has a sharp portion at the tip. Further, a lid member is provided at the rear part of the lid body to form a covered cylindrical body that is hinged thereto and covers the top plate opening so as to be freely opened and closed. A seal portion for sealing the opening of the lid body in a closed state is provided on the back surface of the upper lid plate portion of the lid member.
[0004]
That is, the hinge cap with a virgin mechanism is configured to screw the lid main body into the inner plug so that the sharp portion is brought into contact with the thin film portion of the inner plug, and the thin film portion is cut and opened. Until the stopper is opened, a completely sealed state can be maintained.After the opening, the lid member is closed, and the opening of the lid body is sealed with the sealing member, while the sealed state can be maintained. The lid member is opened and the contents can be taken out freely.
[0005]
[Problems to be solved by the invention]
By the way, in the case of such a product with a hinge cap with a virgin mechanism attached, it is possible to easily determine that it is unopened in a state where it is displayed and sold at the store from the aspect of quality assurance of the contents. It is important for both retailers and consumers.
[0006]
However, in the conventional hinge cap with a virgin mechanism, the unsealed / unopened state must be visually confirmed through the container as to whether or not the thin film inside the container is cut open. It was difficult to confirm and it was not easy to confirm. Further, if the container is colored or opaque, it may not be confirmed through the container.
[0007]
For this reason, in order to facilitate the confirmation work, the film around the cap is covered with a separate film, or a label or the like is attached to the cap and the container. In this way, there are some which make it possible to confirm the opening, but such a film or label is often misunderstood, and it is difficult to surely see the opening / unopening at a glance.
[0008]
The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a virgin mechanism capable of easily and reliably visually confirming whether the inner plug is opened or not from the change in appearance. The object is to provide a hinged cap.
[0009]
[Means for Solving the Problems]
In order to achieve such an object, the hinge cap with a virgin mechanism according to claim 1 of the present invention has a thin film portion cut and opened along the inner diameter of the container mouth portion, and is hermetically mounted on the outer periphery of the mouth portion. A stopper, and a cylindrical portion screwed and attached to a screw integrally formed on the outer peripheral surface of the inner plug, and an opening is formed in the top plate integrally provided on the upper portion of the cylindrical portion, A lid main body provided with an inner plug opening means that has a sharp part at the tip and is suspended from the top plate facing the thin film portion of the inner plug, and is hinged to the rear portion of the lid main body so as to freely open and close the top plate opening. A lid-shaped cylinder is formed, and the back surface of the upper lid plate portion is provided with a lid member provided with a seal portion that seals the opening of the lid body in the closed state, and the lid body is screwed into the inner plug. Hinge with virgin mechanism that cuts and opens the thin film portion by bringing the sharp portion into contact with the thin film portion of the inner plug In the cap, a ring portion is provided on the outer peripheral surface of the lower end portion of the inner plug so as to protrude annularly from the lower end portion of the cylindrical portion, and at the boundary between the ring portion and the inner plug, It was set as the structure in which the thin part for dividing this ring part from the said inner stopper was formed by pushing in the direction.
[0010]
According to the above configuration, the container is opened, that is, the inner stopper is opened as follows. The lid body is screwed downward by an operation of rotating the lid body in one direction with respect to the inner plug. At this time, the inner plug opening means provided in the lid main body also moves in the direction of the inner plug while rotating together. Then, after the sharp portion at the tip of the inner plug opening means comes into contact with and pierces the thin film portion of the inner plug, it rotates along the thin film portion to cut the thin film portion.
[0011]
At the same time, the lower end portion of the cylindrical portion of the lid main body abuts on the upper surface of the ring portion provided on the inner plug and pushes the ring portion downward, whereby the ring portion and the inner plug are pressed. The thin-walled portion at the boundary is broken, and the ring portion is separated from the inner plug. And the separated ring part falls below the mouth part of a container, and is hold | maintained at the neck part of a container. Therefore, it is possible to easily confirm at a glance whether or not the inner stopper of the container is opened by observing a change in the appearance of the cap in which the ring part is held separately from the neck part of the container. Can do. In addition, it is possible to easily check whether the inner stopper is opened or not even in a colored glass container. Furthermore, since it can also be confirmed by touching the ring part by hand, it can be easily confirmed even by a blind person or an operator in a dark place.
[0012]
A hinge cap with a virgin mechanism according to claim 2 of the present invention has an inner plug that has a thin film portion that is cut and opened along the inner diameter of the container mouth portion and is hermetically attached to the outer periphery of the mouth portion, A cylindrical portion screwed and attached to a screw integrally formed on the outer peripheral surface of the stopper; an opening is formed in a top plate provided integrally on the upper portion of the cylindrical portion; and the thin film portion of the inner stopper A lid body provided with an inner plug opening means that is suspended from the top plate and has a sharp portion at the tip thereof, and a covered cylindrical body that is hinged to the rear portion of the lid body and covers the top plate opening so as to be openable and closable. None, the back surface of the upper lid plate portion is provided with a lid member provided with a seal portion that seals the opening of the lid main body in a closed state, and the sharp portion is screwed into the inner plug, In the hinge cap with a virgin mechanism that contacts the thin film portion of the inner plug and cuts and opens the thin film portion, Provided at the lower end of the outer peripheral surface of the inner stopper is a ring portion that protrudes annularly from this and abuts the lower end portion of the cylindrical portion, and a plurality of locking pieces that protrude upward on the upper surface of the ring portion are provided at appropriate intervals. A thin portion for separating the ring portion from the inner plug is formed at the boundary between the ring portion and the inner plug, and the lower end of the cylindrical portion of the lid body is engaged with the locking piece. Thus, the engagement protrusion for applying a rotational force to the ring portion is provided by screwing the lid main body.
[0013]
According to the above configuration, the container is opened, that is, the inner stopper is opened as follows. The lid body is screwed downward by an operation of rotating the lid body in one direction with respect to the inner plug. At this time, the inner plug opening means provided in the lid main body also moves in the direction of the inner plug while rotating together. Then, the sharp part at the tip of the inner plug opening means comes into contact with and pierces the thin film portion of the inner plug and rotates along the thin film portion to cut the thin film portion.
[0014]
At the same time, the lower end portion of the cylindrical portion of the lid body abuts on the upper surface of the ring portion provided on the inner plug, and the engaging piece on the upper surface of the ring portion and the engaging protrusion on the lower end of the cylindrical portion Are engaged, and a rotational force is applied to the ring portion from the tube portion. And this rotational force is transmitted to the thin part of the boundary part of a ring part and an internal stopper, The said thin part is cut | disconnected without resisting this rotational force, and the said ring part is isolate | separated from the said internal stopper. The separated ring part falls below the mouth part of the container and is held by the neck part of the container. Therefore, it is possible to easily confirm at a glance whether or not the inner stopper of the container is opened by observing a change in the appearance of the cap that the separated ring part is held by the neck part of the container. .
[0015]
Furthermore, the hinge cap with a virgin mechanism according to claim 3 of the present invention has a structure in which holes are provided at appropriate intervals along the circumferential direction in the thin portion according to claim 1 or claim 2. It was.
[0016]
According to the above configuration, the thin wall portion is provided with holes at appropriate intervals, and the inner plug and the ring portion are partially coupled at an appropriate interval. Therefore, when the ring portion is separated from the inner plug The breaking resistance of the thin-walled portion is reduced, and the screwing resistance of the lid body when the inner plug is opened is reduced. For this reason, a large force is not required for the opening operation of the inner plug, and even a weak person can easily open the container.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a partially sectional exploded perspective view showing a first embodiment of a hinge cap with a virgin mechanism according to the present invention. FIG. 2 is a sectional view showing a process of opening the hinge cap with a virgin mechanism. ) Indicates an unopened state, (b) indicates an unsealed state, and (c) indicates a state in use after opening.
[0018]
The hinge cap 1 with a virgin mechanism of the first embodiment is used by being mounted on the outer periphery of a mouth portion 52 of a container 50 such as a bottle for storing a liquid material therein. The hinge cap 1 with a virgin mechanism is screwed into a male screw 53 formed on the outer peripheral surface of the mouth portion 52 of the container 50 to seal the mouth portion 52 opening, and the inner cap 10 A lid main body 20 having a cylindrical tube portion 22 screwed and attached to a male screw 18 integrally formed on the outer peripheral surface of the main body 10 and a rear portion of the lid main body 20 are hinged integrally with a hinge 34. And a covered cylindrical member 30.
[0019]
The inner plug 10 is formed as a single unit by resin molding. The lid body 20 and the lid member 30 are integrally formed by resin molding, and the hinge 34 connecting the lid body 20 and the lid member 30 is formed to be extremely thin so that it can be bent.
[0020]
The inner plug 10 has a closed double cylindrical shape having a recess 11 at the center, and a female screw 17 formed on the inner peripheral surface of the lower portion of the outer cylindrical portion 13 is connected to the mouth portion 52 of the container 50. It is screwed and attached to a male screw 53 formed on the outer peripheral surface. The concave portion 11 is formed concentrically with respect to the outer cylindrical body portion 13, and is formed on the inner cylindrical portion 19 fitted into the inner peripheral surface of the mouth portion 52 and the lower side of the inner cylindrical portion 19. The thin film part 12 to be cut and opened is formed along the circumferential direction at the boundary between the bottom part 16 and the inner cylindrical part 19. That is, when the inner plug 10 is screwed into the mouth portion 52 and tightened, the inner cylindrical portion 19 forming the recess 11 is fitted into the inner peripheral surface of the mouth portion 52, and the mouth portion 52 A sealing property between the inner plug 10 can be obtained.
[0021]
In addition, a ring portion 47 is provided on the outer peripheral surface of the lower end portion of the outer cylindrical portion 13 in the inner plug 10 so as to project radially outward and in an annular shape. In a state where it is attached to the stopper 10, it is set to a position where it abuts on the lower end portion of the cylindrical portion 22 of the lid body 20 or has a slight gap.
[0022]
A thin wall portion 41 is formed in the circumferential direction so that the ring portion 47 is divided from the inner plug 10 at the boundary between the ring portion 47 and the inner plug 10. In the present embodiment, the thin-walled portion 41 is provided with air holes 41a at appropriate intervals along the circumferential direction thereof to reduce the dividing resistance and reduce the screwing resistance when opening the inner plug. is doing. The thickness of the thin portion 41, the length of the air holes 41a, the arrangement interval, and the like are set in consideration of the intended use of the container.
[0023]
The lid body 20 has a cylindrical tube portion 22, and only the lower part of the female screw 28 formed on the inner peripheral surface thereof is connected to the male screw 18 integrally formed on the outer peripheral surface of the inner plug 10. It is in a state of screwing. An annular concave portion 27 is formed on the inner peripheral side of the lower end surface of the cylindrical portion 22 so as to be slightly larger than the outer diameter of the ring portion 47 so as to be able to fit into the ring portion 47.
[0024]
In addition, a disc-shaped top plate 23 is integrally provided at the upper end portion of the cylindrical portion 22. A circular opening 24 is formed at the center of the top plate 23, and an annular vertical wall 29 that rises along the inner periphery of the opening 24 is formed. The portion is further formed with an annular ridge 29a projecting in a radially triangular inward shape with a substantially triangular vertical cross section. Further, the top plate 23 is formed with a hanging plug opening means 26 having a sharp portion 25 at the tip so as to face the thin film portion 12 of the plug 10 while being attached to the plug 10. . The inner plug opening means 26 is a cylindrical blade whose lower end is obliquely cut, and a blade 25 having a triangular cross section is integrally formed on the outer peripheral side of the tip. The outer diameter of the cylindrical blade is set to coincide with the diameter of the thin film portion 12. Further, on the upper part of the front side surface of the lid main body 20, a gently curved recess 21 is formed to make it easy to put a finger on the lid member 30 when the lid member 30 is opened and closed.
[0025]
A cylindrical projection 39 having a slightly smaller diameter than the annular vertical wall 29 formed on the top plate 23 of the lid main body 20 is provided on the back surface of the lid plate portion 32 at the top of the lid member 30 having the lid-shaped cylindrical body shape. . The cylindrical projection 39 enters the annular vertical wall 29 in a state in which the lid member 30 is closed to the lid body 20, and its outer peripheral portion is in close contact with the tip of the ridge 29 a, It functions as a seal part that secures a sealing property between the two.
[0026]
A cylindrical portion 33 extending downward along the outer peripheral edge is formed on the back surface side of the lid plate portion 32, and the lower end of the cylindrical portion 33 is the lid body 20 in the closed state of the lid member 30. The hinge 34 is provided by connecting the rear center portion of the lower edge of the cylindrical portion 33 and the upper surface of the lid body 20. In addition, a protruding substantially rectangular finger hook piece 33a for opening / closing the lid member 30 is integrally formed at a position corresponding to the recess 21 of the lid body 20 at the lower portion of the front side surface of the lid member 30.
[0027]
Next, the operation of the hinge cap with a virgin mechanism according to the first embodiment will be described with reference to FIGS. FIG. 3 shows a process in which the ring portion 47 of the hinge cap 1 with a virgin mechanism is divided along with the opening of the inner plug 10, and is an enlarged cross-sectional view of the main part near the boundary between the inner plug 10 and the ring portion 47. (A) is an undivided state, (b) is immediately after dividing, and (c) is a state after dividing.
[0028]
The opening operation of the container using the cap of the first embodiment, that is, the opening operation of the inner stopper 10 is performed as follows. The lid body 20 is screwed downward by an operation of rotating the lid body 20 in one direction with respect to the inner plug 10. At this time, the inner plug opening means 26 provided in the lid body 20 also rotates in a spiral manner, that is, in the direction of the inner plug 10 while rotating. Then, after the cylindrical blade 25 at the tip of the inner plug opening means 26 contacts and pierces the thin film portion 12 of the inner plug 10, it rotates along the thin film portion 12 to cut the thin film portion 12.
[0029]
At the same time, the concave portion 27 at the lower end of the cylindrical portion 22 of the lid main body 20 is fitted and brought into contact with the upper surface of the ring portion 47 provided in the inner plug 10 so that the ring portion 47 is moved downward. Push it in. As the pushing progresses, if the thin portion 41 formed at the boundary between the ring portion 47 and the inner plug 10 cannot resist the pushing force, the thin portion 41 is broken, and the inner plug 10 The ring portion 47 is divided and separated.
[0030]
The separated ring portion 47 falls below the mouth portion of the container and is held by the neck portion 51 of the container 50. Accordingly, it is possible to determine whether or not the inner stopper 10 of the container is opened by looking at a change in the appearance of the cap as to whether or not the separated ring part 47 is held on the neck part 51 of the container 50. It can be easily confirmed. Further, even when the container is opaque or colored and the inside cannot be seen, it is possible to easily check whether the inner stopper 10 has been opened or not. Furthermore, since it can also be confirmed by touching the ring portion 47 by hand, it can be easily confirmed even by a blind person or an operator in a dark place.
[0031]
In the present embodiment, the thin wall portion 41 formed at the boundary between the inner plug 10 and the ring portion 47 is provided with a rectangular hole 41a along the circumferential direction thereof. 10 and the ring portion 47 are partially provided, so that the split resistance when the ring portion 47 is cut is reduced, and the screwing resistance of the lid body 20 when the inner plug 10 is opened is reduced. The opening operation of the inner plug 10 can be easily performed.
[0032]
Next, a second embodiment of the present invention will be described.
[0033]
FIG. 4 is a partially sectional exploded perspective view showing a second embodiment of the present invention, FIG. 5 is a sectional view showing a process in which the inner plug is opened, (a) is an unopened state, (b). Indicates a state immediately after completion of opening, and (c) indicates a state in use. FIG. 6 shows a process in which the ring portion is divided along with the opening of the inner plug, and is an enlarged cross-sectional view of the main part near the boundary between the inner plug and the ring portion, and (a) is an undivided state. (B) shows the state immediately after the division, and (c) shows the state after the division.
[0034]
As shown in the figure, the basic structure of the second embodiment is substantially the same as that of the first embodiment. Therefore, the same members are denoted by the same reference numerals, and only the differences will be described.
[0035]
As shown in FIG. 4, the second embodiment is different from the first embodiment described above in that the shape of the ring portion 44 and the shape of the concave portion 27 b formed in the lower end portion of the cylindrical portion 22 of the lid body 20 are different. .
[0036]
That is, an annular ring portion 44 having an L-shaped cross section is provided projecting outward in the radial direction at the lower end portion of the outer peripheral surface of the outer cylindrical body portion 13 in the inner plug 10 of the second embodiment. A plurality of substantially rectangular parallelepiped locking pieces 48 are formed at appropriate intervals in the circumferential direction on the corner of the refracting portion.
[0037]
On the other hand, as shown in FIG. 6, the inner peripheral surface and the lower end surface of the lower end portion of the cylindrical portion 22 of the lid main body 20 are in contact with the annular ring portion 44 having the L-shaped cross section or face with a slight gap. Furthermore, an annular recess 27b is formed on the inner peripheral surface of the lower end of the cylindrical portion 22 so as to have a diameter slightly larger than the protruding dimension in the radial direction of the locking piece 48 formed on the ring portion 44. The recess 27b A substantially rectangular parallelepiped engaging protrusion 27c that engages with the locking piece 48 is formed at a circumferential position corresponding to the locking piece.
[0038]
Next, the operation of the second embodiment will be described in detail.
[0039]
According to the above configuration, the container is opened, that is, the inner plug 10 is opened as follows. The lid body 20 is screwed downward by an operation of rotating the lid body 20 in one direction with respect to the inner plug 10. At this time, the inner plug opening means 26 provided in the lid body 20 also rotates in a spiral manner, that is, in the direction of the inner plug 10 while rotating. Then, after the cylindrical blade 25 at the tip of the inner plug opening means 26 contacts and pierces the thin film portion 12 of the inner plug 10, it rotates along the thin film portion 12 to cut the thin film portion 12.
[0040]
At the same time, the lower end portion of the cylindrical portion 22 of the lid body 20 abuts on the ring portion 44 provided in the inner plug 10, and the locking piece of the ring portion 44 is rotated by the rotation of the lid body 20. 48 and the engaging protrusion 27 c in the concave portion 27 b of the cylindrical portion 22 are engaged, and a rotational force is applied to the ring portion 44 from the cylindrical portion 22. This rotational force is transmitted to the thin portion 46 at the boundary between the ring portion 44 and the inner plug 10, and when the thin portion 46 can no longer resist this rotational force, the ring portion 44 is separated from the inner plug 10. , Will be withdrawn. The separated ring portion 44 falls below the mouth portion of the container 50 and is held by the neck portion 51 of the container 50. Accordingly, it is easy to determine whether or not the inner stopper of the container is opened by looking at the change in the appearance of the cap whether or not the separated ring part 44 is held by the neck part 51 of the container 50. Can be confirmed.
[0041]
【The invention's effect】
As described above, according to the hinge cap with a virgin mechanism according to the first aspect of the present invention, the ring protrudes annularly from the lower end portion of the outer peripheral surface of the inner plug and contacts the lower end portion of the cylindrical portion of the lid body. Since the thin part for separating the ring part from the inner plug is formed at the boundary between the ring part and the inner plug, the lid main body is opened with respect to the inner plug when the inner plug is opened. By rotating and screwing in one direction, the lower end of the cylindrical part of the lid body pushes the ring part downward, the ring part is separated from the inner plug at the thin part, and the ring part is detached. It is held on the neck of the container. For this reason, it is easy to confirm whether or not the inner stopper of the container is opened by looking at the change in the appearance of the cap whether or not the separated ring part is held on the neck part of the container. can do. Therefore, it is easy to check whether the package is opened or not when it is being displayed and sold at the store, and not only can the work load of the store clerk be reduced, but also consumers can purchase with confidence. Moreover, even if the container is colored or opaque, it is possible to easily check whether the inner stopper is opened or not. Furthermore, since it can also be confirmed by touching the ring part with a hand, it can be easily confirmed even by a blind person or an operator in a dark place.
[0042]
According to the hinge cap with a virgin mechanism according to the second aspect of the present invention, the ring cap is provided on the lower end portion of the outer peripheral surface of the inner plug so as to protrude annularly and contact the lower end portion of the cylindrical portion of the lid body. A plurality of locking pieces are provided on the upper surface of the ring portion at appropriate intervals, and a thin portion for separating the ring portion from the inner plug is formed at the boundary between the ring portion and the inner plug, and the lid body Since the lower end of the cylindrical portion is provided with an engaging protrusion that engages with the locking piece and applies a rotational force to the ring portion, the lid main body that is opened when the inner plug is opened is attached to the inner plug. By rotating and screwing in one direction, the engaging piece on the upper surface of the ring portion and the engaging protrusion on the lower end of the cylindrical portion are engaged, and a rotational force is applied to the ring portion from the cylindrical portion. The thin part is broken, the ring part is detached from the inner plug, and the ring part becomes a container. It is retained on the neck. Therefore, it is possible to easily confirm whether the inner stopper of the container is opened or not by looking at the change in appearance as described above.
[0043]
Furthermore, according to the hinge cap with a virgin mechanism of the invention according to claim 3, the thin wall portion according to claim 1 or claim 2 is configured to have holes at appropriate intervals along the circumferential direction. Therefore, the cutting resistance of the thin portion when the ring portion is divided from the inner plug can be reduced, and the force necessary for opening the container can be reduced as much as possible.
[Brief description of the drawings]
FIG. 1 is a partially sectional exploded perspective view showing a first embodiment of a hinge cap with a virgin mechanism according to the present invention.
FIGS. 2A and 2B are cross-sectional views showing a process of opening the inner plug of the hinge cap with a virgin mechanism according to the first embodiment of the present invention, in which FIG. 2A is an unopened state, and FIG. , (C) shows the use state after opening.
FIG. 3 shows a process in which the ring part is divided along with the opening of the inner plug of the first embodiment according to the present invention, and is an enlarged cross-sectional view of the main part near the boundary between the inner plug and the ring part; (A) is undivided, (b) is immediately after dividing, (c) is the state after dividing.
FIG. 4 is a partially sectional exploded perspective view showing a second embodiment of a hinge cap with a virgin mechanism according to the present invention.
FIGS. 5A and 5B are cross-sectional views showing a process of opening a middle cap of a hinge cap with a virgin mechanism according to a second embodiment of the present invention, in which FIG. (C) shows the state which can open | release a cover member and can take out contents, such as a liquid inside a container.
FIG. 6 is an enlarged cross-sectional view of a main part in the vicinity of the boundary between the inner plug and the ring portion, showing a process in which the ring portion is divided along with the opening of the inner plug according to the second embodiment of the present invention; Is undivided, (b) is immediately after dividing, and (c) is the state after dividing.
It is sectional drawing which shows the modification of 1st Embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hinge cap 10 with a virgin mechanism Inner plug 12 Thin film part 13 Outer cylinder part 17 Female screw 18 Male screw 19 Inner cylindrical part 20 Lid main body 22 Cylinder part 23 Top plate 24 Opening 25 Sharp part 26 Inner plug opening means 30 Lid member 32 Lid plate part 34 Hinge 39 Cylindrical protrusion (seal member)
41 Thin part 47 Ring part 50 Container 52 Mouth

Claims

An inner plug hermetically attached to the outer periphery of the mouth portion having a thin film portion cut and opened along the inner diameter of the container mouth portion;
A cylindrical portion that is screwed onto a screw integrally formed on the outer peripheral surface of the inner plug; an opening is formed in a top plate that is integrally provided on the upper portion of the cylindrical portion; A lid main body provided with an inner plug opening means that faces the thin film portion and is suspended from the top plate and has a sharp portion at the tip,
The lid body is hinged to the rear part of the lid body to form a covered cylinder that covers the top plate opening so as to be openable and closable. On the back surface of the upper lid plate part, the opening of the lid body is sealed in a closed state. A lid member provided with a seal portion,
In the hinge cap with a virgin mechanism for screwing the lid main body into the inner plug, bringing the sharp portion into contact with the thin film portion of the inner plug, and cutting and opening the thin film portion,
Provided on the outer peripheral surface of the lower end portion of the inner plug is a ring portion that protrudes annularly from this and contacts the lower end portion of the cylindrical portion,
At the boundary between the ring portion and the inner plug, a thin portion is formed to divide the ring portion from the inner plug by pushing down the cylindrical portion.
A hinge cap with a virgin mechanism.

An inner plug hermetically attached to the outer periphery of the mouth portion having a thin film portion cut and opened along the inner diameter of the container mouth portion;
A cylindrical portion that is screwed onto a screw integrally formed on the outer peripheral surface of the inner plug; an opening is formed in a top plate that is integrally provided on the upper portion of the cylindrical portion; A lid main body provided with an inner plug opening means that faces the thin film portion and is suspended from the top plate and has a sharp portion at the tip,
The lid body is hinged to the rear part of the lid body to form a covered cylinder that covers the top plate opening so as to be openable and closable. On the back surface of the upper lid plate part, the opening of the lid body is sealed in a closed state. A lid member provided with a seal portion,
In the hinge cap with a virgin mechanism, by screwing the lid body into the inner plug, bringing the sharp portion into contact with the thin film portion of the inner plug and cutting and opening the thin film portion,
On the outer peripheral surface of the lower end portion of the inner plug, provided with a ring portion that protrudes annularly from this and contacts the lower end portion of the cylindrical portion,
Provide a plurality of locking pieces protruding upward on the upper surface of the ring portion at appropriate intervals,
At the boundary between the ring portion and the inner plug, a thin portion for separating the ring portion from the inner plug is formed,
The lower end of the cylindrical portion of the lid body is provided with an engaging protrusion that engages with the locking piece and applies a rotational force to the ring portion by screwing the lid body.
A hinge cap with a virgin mechanism.

The hinge cap with a virgin mechanism according to claim 1 or 2, wherein holes are provided at appropriate intervals along the circumferential direction of the thin portion.