JP4330184B2

JP4330184B2 - Composite container lid

Info

Publication number: JP4330184B2
Application number: JP12910098A
Authority: JP
Inventors: 英彦近江
Original assignee: Nippon Closures Co Ltd
Current assignee: Nippon Closures Co Ltd
Priority date: 1998-05-12
Filing date: 1998-05-12
Publication date: 2009-09-16
Anticipated expiration: 2018-05-12
Also published as: JPH11321905A

Description

【０００１】
【発明の属する技術分野】
本発明は、容器開口部に装着される蓋本体と、蓋本体に対し昇降自在に装着される昇降部材とを備え、昇降部材を初期上昇位置から下降させて開封下降位置にせしめると蓋本体が開封される複合容器蓋に関する。本発明に係る複合容器蓋は、飲料、食品、洗剤、薬品等の収容物を収容した合成樹脂製の容器に適用される。
【０００２】
【従来の技術】
特許第２６４８４９９号公報には、容器開口部に装着される蓋本体と、蓋本体に対し回転可能に装着される外蓋とを備えた複合容器蓋が開示されている。蓋本体には外側円筒部及び内側円筒部が備えられている。外側円筒部は蓋本体の環状上面壁に形成され、内側円筒部は傾斜したヒンジを構成する可撓性のスペーサを介して外側円筒部に連結されている。内側円筒部は外側円筒部内から上方に突出しており、その円錐台状の頂部には通過開口が形成され、下端には切込みナイフが形成されている。外側円筒部の外周面には複数の係止ガイド溝が螺旋状に形成されている。外蓋内には上側円筒部及び下側円筒部が形成されている。外蓋の円錐台状の頂部における円錐部には排出開口が形成され、下端部には付加裾部が破断可能に形成されている。下側円筒部の内周面には被係止突起が形成されている。容器開口部は、熱封止シールが固着されることにより密封されている。
【０００３】
蓋本体は容器開口部に装着され、外蓋は、その被係止突起が蓋本体の係止ガイド溝に係止されかつ上側円筒部が蓋本体の内側円筒部に嵌合されることにより、蓋本体に装着される。外蓋の付加裾部の下端は蓋本体の環状上面壁に当接せしめられる。蓋本体の円錐台状の頂部は外蓋の円錐台状の頂部に密着せしめられる。これにより蓋本体の通過開口及び外蓋の排出開口は共に閉じられる。
【０００４】
外蓋の付加裾部を破断して外蓋から除去させると、外蓋の下端と蓋本体の環状上面壁との間に、外蓋の下降を許容する隙間が形成される。外蓋を蓋本体に対し所定方向に回転させると、外蓋の被係止突起が蓋本体の係止ガイド溝に沿って移動させられるので、外蓋は蓋本体に向かって下降する。外蓋の下降は、その下端が蓋本体の環状上面壁に当接することにより阻止される。外蓋の下降により、蓋本体の切込みナイフは熱封止シールを切り込んで容器開口部を開封する。蓋本体の内側円筒部は、上記スペーサのヒンジ作用で初期位置に復帰しないよう位置付けられる。次いで外蓋を蓋本体に対し逆方向に回転させると、外蓋は蓋本体に対し上昇して初期位置に復帰せしめられる。外蓋の円錐台状の頂部は蓋本体の円錐台状の頂部から上方に離隔せしめられるので、蓋本体の通過開口及び外蓋の排出開口は共に開口せしめられる。これにより容器内の収容物は、蓋本体の通過開口を通して外蓋の排出開口から排出される。
【０００５】
【発明が解決しようとする課題】
上記従来の複合容器蓋の使用に際しては、蓋本体及び外蓋に加えて熱封止シールを別個に形成し、この熱封止シールを容器開口部に固着しなければならない。すなわち上記従来の複合容器蓋は、容器への使用に際して、別個の部材である熱封止シールを必須とし、全体として部品点数が多くなる。そしてまた熱封止シールの容器に対する煩雑な固着作業をも必須とするので、製造コストが比較的高価となる。更にはまた、複合容器蓋の使用に際しては、外蓋の蓋本体に対する両方向への回転操作を必要とするので、使用時における操作が比較的煩雑となる。
【０００６】
本発明は上記事実に基づいてなされたものであり、その目的は、別個の部材である熱封止シールを使用することなく容器への使用を可能とし、したがって部品点数を最少にせしめて製造コストを低減することができる、新規な複合容器蓋を提供することである。
【０００７】
本発明の他の目的は、熱封止シールの容器に対する煩雑な固着作業を不要にせしめて製造コストを低減することができる、新規な複合容器蓋を提供することである。
【０００８】
本発明の更に他の目的は、使用時における操作が比較的簡単である、新規な複合容器蓋を提供することである。
【０００９】
本発明の更に他の目的は、プッシュ・プルの簡単な操作で使用することができる、新規な複合容器蓋を提供することである。
【００１０】
本発明のその他の目的及び特徴は、本発明に従って構成された複合容器蓋の各実施形態について添付図面を参照して詳細に説明する後の記載から明らかになるであろう。
【００１１】
【課題を解決するための手段】
本発明によれば、容器開口部に装着される蓋本体と、該蓋本体に昇降自在に装着される昇降部材とを備え、
該蓋本体は、環状上面壁、該上面壁の周縁から垂下する円筒状スカート壁、該上面壁から上方に突出する筒状案内壁、該案内壁の半径方向内側に配置され上端が頂壁により閉じられた筒状突出壁であってその外周面と該案内壁の内周面間に周方向に間隔をおいて配設された複数の橋絡部を介して該案内壁に支持された筒状突出壁、それぞれ周方向に対向する該橋絡部とそれらの間を延びる該突出壁及び該案内壁とに薄肉部を介して連結された複数の通過開口用開封予定部を含み、該スカート壁を該容器開口部に係合させることにより該容器開口部に装着され、
該昇降部材は、天面壁、該天面壁から垂下する筒状被案内壁、該被案内壁よりも半径方向内側で下方が周方向に隙間をおいて軸方向に延在し上部が該天面壁に連結された複数の押圧壁を含み、該押圧壁の各々よりも半径方向内側における該天面壁には少なくとも１個の排出開口又は無端状の排出開口用破断可能ラインにより囲まれ、該排出開口用破断可能ラインを破断せしめることにより排出開口が形成される排出開口用開封予定部が形成され、
該案内壁に該被案内壁を被嵌させることにより該昇降部材は該蓋本体に初期上昇位置で保持され、該昇降部材を該初期上昇位置から開封下降位置に下降させると、該押圧壁の各々が該案内壁及び該突出壁間における該橋絡部の各々間に位置付けられて該通過開口用開封予定部の各々に作用し該薄肉部を一部を残して破断して開封し、
該昇降部材の該初期上昇位置と該開封下降位置との間には使用中間位置が設けられ、該昇降部材を該開封下降位置から上昇させて該使用中間位置に位置付けた状態において、該押圧壁の各々の下端が該通過開口用開封予定部の各々の一部を該容器開口部側に押し下げて、該通過開口用開封予定部の各々を下方に変位した状態に維持し、
該開封下降位置においては、該排出開口は該蓋本体の該突出壁の該頂壁によって閉じられ、該使用中間位置においては、該排出開口は該蓋本体の該突出壁の該頂壁から離隔して開かれる、ことを特徴とする複合容器蓋、が提供される。
【００１２】
上記発明に係る複合容器蓋においては、昇降部材を初期上昇位置から開封下降位置に下降させると、昇降部材に設けられた押圧壁の各々が蓋本体に形成された通過開口用開封予定部の各々に作用して各々の薄肉部を破断するので、通過開口用開封予定部の各々は開封される。その結果、従来の如き別個の部材である熱封止シールを使用することなく容器への使用が可能となる。したがって部品点数は蓋本体及び昇降部材のみの最少（２部品）で済むので、製造コストが低減される。また熱封止シールを使用する必要がなくなることに起因して、熱封止シールの容器に対する煩雑な固着作業を不要にせしめ、したがってこの点においても、製造コストが低減される。更には、昇降部材を蓋本体に対して回転させることなく、軸方向に押し下げるのみの操作で蓋本体の通過開口用開封予定部の各々を開封させることができるので、操作がより簡単となる。
【００１３】
【発明の実施の形態】
以下、添付図面を参照して、本発明の好適実施形態について更に詳細に説明する。なお、図１〜図２０において、実質上同一部分は同一符号で示す。
【００１４】
図１及び図２を参照して、全体を番号２で示す複合容器蓋は、図８を参照して後述する容器１００の容器開口部１０２に装着される蓋本体４と、蓋本体４に昇降自在に装着される昇降部材６とを備えている。
【００１５】
図３〜図５を参照して、ポリプロピレン又はポリエチレン等の如き適宜の合成樹脂から圧縮成形又は射出成形により一体成形することができる蓋本体４は、環状上面壁８、上面壁８の周縁から垂下する円筒状スカート壁１０、上面壁８における、スカート壁１０の半径方向内側から下方に延びる環状のインナーリング１２、上面壁８から上方に突出する筒状案内壁１４を備えている。スカート壁１０の内周面には雌ねじ部１６が形成され、またスカート壁１０の下端には、周方向に間隔をおいて形成された複数の橋絡部１８を介して拘束リング２０が接続されている。橋絡部１８は破断可能な薄肉部から形成されている。橋絡部１８間には周方向に延在するスリット２２が形成され、スリット２２の一部にはラチェット部２４が形成されている。それ自体は周知の構成を有するラチェット部２４は、拘束リング２０とスカート壁１０との間の一方向へ相対回転は許容するが、他方向への相対回転は阻止されるよう構成されている。それ自体は周知の構成を有する拘束リング２０には、その内周面から半径方向内側にかつ周方向の一方に向かって傾斜して延びる係止フラップ２６が、周方向に一定の間隔をおいて複数個形成されている。係止フラップ２６は薄肉で可撓性を有するよう形成されている。上面壁８の周縁の外径よりスカート壁１０の外径は大きく形成され、上面壁８の周縁とスカート壁１０の上端との間には環状の段部が形成されている。上面壁８の周縁の下端にはアンダーカット部２７が形成されている。このアンダーカット部２７はカバーキャップ２９（図８参照）を離脱自在に係止させるために設けられているものである。
【００１６】
蓋本体４の案内壁１４の外周面には環状上係止突条２８及び環状下係止突条３０が形成されている。環状上係止突条２８及び環状下係止突条３０は軸方向に隣接して配設されている。案内壁１４の、環状下係止突条３０より下方部位の外径は、環状上係止突条２８より上方部位の外径より若干大きく形成されている。案内壁１４の半径方向内側には、筒状突出壁３２が環状の間隔をおいて配設されている。突出壁３２の上端は頂壁３４により閉じられている。突出壁３２の上端部の外周面は、上方に向かうに従って外径が小さくなるような円錐面をなしている。突出壁３２は、その外周面と案内壁１４の内周面との間に周方向に間隔をおいて配設された複数の橋絡部３６を介して案内壁１４に支持されている。橋絡部３６の各々は、案内壁１４及び突出壁３２の各々の下端部に位置付けられている。橋絡部３６の各々の上端は周方向の中央から両端に向かって下降する湾曲面３８により形成されている。それぞれ周方向に対向する橋絡部３６とそれらの間を延びる突出壁３２及び案内壁１４とに囲まれて円弧状に延在する部分には、それぞれ通過開口用開封予定部４０が配設されている。通過開口用開封予定部４０の各々の周縁は、それぞれ周方向に対向する橋絡部３６とそれらの間を円弧状に延びる突出壁３２及び案内壁１４に、薄肉部４２を介して連結されている。すなわち薄肉部４２の各々は対応する通過開口用開封予定部４０の周縁を規定する。この実施形態においては、薄肉部４２の各々の全周が一定の残留厚さで形成されている。
【００１７】
図６及び図７を参照して、ポリプロピレン又はポリエチレン等の如き適宜の合成樹脂から圧縮成形又は射出成形により一体成形することができる昇降部材６は、天面壁４４、天面壁４４から垂下する筒状被案内壁４６、被案内壁４６よりも半径方向内側で少なくとも下方が周方向に隙間４７をおいて軸方向に延在し上部が天面壁４４に連結された４つの押圧壁４８を備えている。押圧壁４８の各々よりも半径方向内側における天面壁４４には１個の排出開口５０が形成されている。排出開口５０の内周面は、蓋本体４の突出壁３２の上端部外周面に形成された円錐面に整合しうる円錐面をなしている。被案内壁４６の下端には、周方向に連続して延びる周方向破断可能ライン５２を介して付加裾部５４が接続されている。周方向破断可能ライン５２は薄肉部から構成されている。付加裾部５４には把持片５６が付設されており、把持片５６を引っ張ることによって周方向破断可能ライン５２を破断せしめることができるよう構成されている。被案内壁４６の下端の内周面と付加裾部５４の上端の内周面とにはそれぞれ環状被係止突条５７及び５８が形成されている。被案内壁４６よりも半径方向内側における天面壁４４には、天面壁４４から垂下する円筒部６０が形成されている。上記押圧壁４８の各々は円筒部６０の下端から更に垂下するよう形成され、円筒部６０を介して天面壁４４に連結されている。押圧壁４８の各々は一定の厚さを有し、軸方向から見て円弧形状をなし、また各々の下端は周方向の中央から両端に向かって上昇する湾曲面４９からなる。押圧壁４８の各々にはまた、内周面から半径方向内側に突出しかつ押圧壁４８の下端から上方に円筒部６０を通って天面壁４４の下面まで延びるリブ６２が形成されている。リブ６２の各々は断面が矩形状をなし、対応する押圧壁４８の周方向の中央に配設されている。押圧壁４８の各々の最大厚さ（すなわちリブ６２を含む厚さ）は、蓋本体４の案内壁１４の内周面と突出壁３２の外周面との間の隙間よりも小さく規定されている。押圧壁４８の各々を周方向に区画する上記隙間４７の各々は、一定の周方向幅をもって軸方向に延在するよう形成されている。すなわち隙間４７の各々は、下端から上方に向かって直線状に延在するスリットから構成されている。
【００１８】
図１及び図２を参照して、昇降部材６の被案内壁４６を蓋本体４の案内壁１４に被嵌させることにより、昇降部材６は蓋本体４に、初期上昇位置で保持される。すなわち昇降部材６を蓋本体４に整合させて軸方向に下降させる（押し下げる）ことにより、昇降部材６の被案内壁４６の被係止突条５７は蓋本体４の案内壁１４の上係止突条２８と下係止突条３０との間に位置せしめられて係止される。また昇降部材６の付加裾部５４の下端は蓋本体４の上面壁８に当接し、昇降部材６の蓋本体４に対する下降が阻止される。これにより昇降部材６は、蓋本体４に対し押し込む（プッシュする）だけの簡単な操作によって、図１に示す初期上昇位置（最初の装着位置）に確実に位置付けられて保持される。昇降部材６における円筒部６０の下端部の外周面及び押圧壁４８の各々の外周面は、蓋本体４の案内壁１４の内周面に移動自在に密着せしめられる。昇降部材６の押圧壁４８の各々は、蓋本体４の案内壁１４及び突出壁３２間において、通過開口用開封予定部４０の各々に対応して位置付けられる。なお押圧壁４８の各々の周方向長さは対応する通過開口用開封予定部４０の周方向長さより若干短く規定されており、押圧壁４８の各々は、対応する通過開口用開封予定部４０の周方向の略全域であって半径方向外側（案内壁１４側）に偏った位置に各々の下端が接近して位置付けられる。また押圧壁４８の各々間の隙間４７は、橋絡部３６の各々に対応して位置付けられると共に軸方向に移動自在に嵌合される。昇降部材６における天面壁４４の排出開口５０は、蓋本体４における突出壁３２の頂壁３４から上方に離されて開口した状態に位置付けられる。
【００１９】
上記の如く、蓋本体４の橋絡部３６の各々の上端が湾曲面３８により形成され、昇降部材６の押圧壁４８の各々の下端が湾曲面４９により形成されているので、昇降部材６を軸方向に下降させることにより蓋本体４に装着するに際し、押圧壁４８の各々間の隙間４７が対応する橋絡部３６に対し円滑にガイドされて嵌合され、したがって昇降部材６と蓋本体４との周方向相対的位置が円滑にガイドされ、装着操作が円滑かつ容易に遂行される。なお橋絡部３６の各々の湾曲面３８及び押圧壁４８の各々の湾曲面４９を、それぞれ傾斜面により形成する実施形態もあり、その場合も上記と同様な作用効果が得られる。また蓋本体４の案内壁１４の外周面と昇降部材６の被案内壁４６の内周面との一方に上下方向に延びる規制突条（図示せず）を形成し、案内壁１４の外周面と被案内壁４６の内周面との他方に上下方向に延びる係止溝（図示せず）を形成し、規制突条と係止溝を係合せしめる実施形態もある。この実施形態の場合、蓋本体４と昇降部材６との周方向相対的位置が一層確実に規制される。
【００２０】
図８を参照して、合成樹脂製の容器１００の容器開口部１０２の外周面における上端部には雄ねじ部１０４が形成され、また雄ねじ部１０４よりも下方に間隔をおいた位置には半径方向外方に突出するストッパ１０８が、周方向に間隔をおいて複数個形成されている。ストッパ１０８の各々の下方に隣接した位置には環状フランジ１０６が形成されている。容器１００内には例えばスポーツ飲料等の液体が収容される。上記複合容器蓋２は、蓋本体４のスカート壁１０を容器１００の容器開口部１０２に係合させることにより容器開口部１０２に装着される。すなわち蓋本体４を容器開口部１０２に対して回転させて蓋本体４の雌ねじ部１６を容器開口部１０２の雄ねじ部１０４に係合させることにより、蓋本体４は容器開口部１０２に螺合せしめられる。蓋本体４のインナーリング１２は容器開口部１０２の内周面に密着せしめられる。蓋本体４のスカート壁１０の雌ねじ部１６は容器開口部１０２の雄ねじ部１０４に係合させられ、スカート壁１０の拘束リング２０は、容器開口部１０２のストッパ１０８の各々が形成された外周面を被嵌するよう位置付けられる。蓋本体４には、その上面壁８の周縁に形成されたアンダーカット部２７を利用してカバーキャップ２９が装着される。蓋本体４の上面壁８の上面及び昇降部材６はカバーキャップ２９により覆われ、流通時における複合容器蓋２の保護及び防塵がなされる。なお上記実施形態において、蓋本体４は容器開口部１０２に対しねじ係合されているが、それに代えて、容器開口部１０２の外周面に環状突起を形成し、蓋本体４の内周面には環状突起又は周方向に間隔をおいて位置付けられた複数の突起を形成し、蓋本体４を容器開口部１０２に対し打栓により装着する実施形態もある。この場合、蓋本体４の環状突起又は複数の突起が、容器開口部１０２の環状突起を乗り越えて下側に係止される。
【００２１】
例えば容器１００内の収容物であるスポーツ飲料等の液体を容器１００から排出する場合には、先ず複合容器蓋２の蓋本体４からカバーキャップ２９を取り外す。そして昇降部材６の把持片５６を引っ張ることにより周方向破断可能ライン５２が破断され、付加裾部５４を被案内壁４６から除去することができる（図９参照）。付加裾部５４を被案内壁４６から除去することにより、昇降部材６の被案内壁４６の下端と蓋本体４の上面壁８との間に軸方向の隙間が形成され、昇降部材６を初期上昇位置から開封下降位置まで下降せしめることが許容される。すなわち、昇降部材６を図９に示す初期上昇位置から蓋本体４に対し押し下げると、蓋本体４における案内壁１４の環状上係止突条２８及び環状下係止突条３０間に係止されていた昇降部材６における被案内壁４６の環状被係止突条５７は、環状下係止突条３０を通過して下方に移動し、案内壁１４における環状下係止突条３０よりも下方に位置付けられると共に昇降部材６の被案内壁４６の下端が蓋本体４の上面壁８の上面に当接してその移動が阻止され、昇降部材６は開封下降位置に位置付けられる（図１０参照）。
【００２２】
上記の如くして昇降部材６を初期上昇位置から開封下降位置に下降させると、図１０に示す如く、押圧壁４８の各々が蓋本体４の通過開口用開封予定部４０の各々に作用し薄肉部４２を破断して開封する。すなわち押圧壁４８の各々は、対応する通過開口用開封予定部４０の周方向の略全域であって半径方向外側（案内壁１４側）に偏った位置に作用して下方に押圧するので、押圧壁４８の各々は、対応する通過開口用開封予定部４０を、薄肉部４２の、半径方向内側の部分（突出壁３２に連結された部分４２ａ──図５参照）における周方向の両端を除く他の部分を破断して下方に変位せしめる（通過開口用開封予定部４０の各々は、上記部分４２ａの両端を旋回中心軸として下方に変位せしめられる）。リブ６２を含む押圧壁４８の各々の下端部は、通過開口用開封予定部４０の各々を上記の如く破断した状態で容器開口部１０２内に突出する。蓋本体４は通過開口用開封予定部４０の各々の部位で開封される。昇降部材６における天面壁４４の排出開口５０は蓋本体４における突出壁３２の頂壁３４によって閉じられる。しかも昇降部材６の円筒部６０の外周面は蓋本体４の案内壁１４の内周面に密着されているので、この状態で容器１００が倒れても、容器１００内の液体の漏出は確実に防止される。
【００２３】
昇降部材６の初期上昇位置と開封下降位置との間には使用中間位置が設けられており、昇降部材６を開封下降位置から使用中間位置に上昇させることができる。すなわち昇降部材６を開封下降位置から上昇させると（引き上げると）、昇降部材６における被案内壁４６の環状被係止突条５７は、蓋本体４における案内壁１４に沿って移動させられ、環状下係止突条３０の下側に当接せしめられそれ以上の上昇が阻止されて環状下係止突条３０の下側に係止せしめられる。これにより昇降部材６は図１１に示す使用中間位置に位置付けられる。環状被係止突条５７の内径は環状下係止突条３０の下側における案内壁１４の外径より若干小さく形成されているので、両者の間には適度のフリクションが生成されており、昇降部材６は蓋本体４に対し自然に降下することなく使用中間位置に維持される。
【００２４】
上記の如く昇降部材６を開封下降位置から使用中間位置に上昇させると、昇降部材６における上面壁４４の排出開口５０が、蓋本体４における突出壁３２の頂壁３４から離されて開口される。また蓋本体４の通過開口用開封予定部４０の各々を下方に変位せしめて開封している昇降部材６の押圧壁４８の各々も上昇するが、使用中間位置においても、押圧壁４８の各々は、各々の下端が対応する通過開口用開封予定部４０を破断して容器開口部１０２側に若干突出した位置に位置付けられているので、通過開口用開封予定部４０の各々は下方に変位させられた状態に維持される。これは通過開口用開封予定部４０の各々が変位状態から各々の弾性により元の変位しない状態に復帰しようとしても、対応する押圧壁４８の各々のリブ６２に干渉されて復帰が阻止されるからである。以上のとおりにして昇降部材６を蓋本体に対し使用中間位置に上昇させた状態で容器１００を傾けて、容器１００の図示しない胴部を押圧することによって、容器１００内の液体は、容器開口部１０２、通過開口用開封予定部４０の各々の開封部、蓋本体４の突出壁３２と昇降部材６の押圧壁４８の各々及び円筒部６０との間の隙間（空間部）を通って昇降部材６の排出開口５０から適宜に排出される。なお、上記の如く押圧壁４８の各々がリブ６２を備えていることに起因して、通過開口用開封予定部４０の各々の開口面積が増大され、容器１００内の液体の排出を容易にせしめる。
【００２５】
容器１００内の液体が完全に排出された後、複合容器蓋２を分別廃棄する場合には、蓋本体４を容器開口部１０２に対し開栓方向に回転させる。蓋本体４のスカート壁１０に形成された雌ねじ部１６が容器開口部１０２に形成された雄ねじ部１０４に沿って回転させられる。蓋本体４における拘束リング２０の係止フラップ２６のうちの一部は、容器開口部１０２のストッパ１０８の各々に当接して回転を阻止されるので、蓋本体４のスカート壁１０と拘束リング２０との間に相対回転が生成され、拘束リング２０の橋絡部１８の各々が破断される。複合容器蓋２は、拘束リング２０を容器開口部１０２に残したまま、容器開口部１０２から除去される。次いで拘束リング２０が容器開口部１０２から取り外されることにより、分別廃棄が容易に遂行される。なお、容器１００内に液体が充填されている状態において、通過開口用開封予定部４０もしくは拘束リング２０を破断することなく容器１００内に不純物を混入することは不可能であり、したがって不正使用は確実に防止される。
【００２６】
図１２及び図１３には昇降部材６の他の実施形態が示されている。この実施形態における昇降部材６の押圧壁４８の各々の下端は周方向の一端から他端に向かって上昇する湾曲面４９ａからなる。押圧壁４８の各々には図６及び図７に示す昇降部材６におけるリブ６２は形成されていない。昇降部材６が初期上昇位置に保持された状態において、押圧壁４８の各々の下端は、対応する通過開口用開封予定部４０の周方向の一端側に偏った位置（周方向に対向する橋絡部３６の一方の側に偏った位置）に接近して位置付けられる。その他の構成は図６及び図７に示す昇降部材６と実質上同じであるので説明は省略する。
【００２７】
昇降部材６を初期上昇位置から開封下降位置に下降させると、押圧壁４８の各々は、対応する通過開口用開封予定部４０を、周方向の他端側すなわち周方向に対向する橋絡部３６の他方と連結する薄肉部４２を除く他の部分の薄肉部４２を破断して下方に変位せしめる。すなわち押圧壁４８の各々は、対応する通過開口用開封予定部４０の周方向の一端側に偏った位置（周方向に対向する橋絡部３６の一方側に偏った位置）に作用して下方に押圧するので、押圧壁４８の各々は、対応する通過開口用開封予定部４０を、薄肉部４２の、周方向に対向する橋絡部３６の他方と連結する部分（周方向の他端側）を除く他の部分を破断して下方に変位せしめる（通過開口用開封予定部４０の各々は、周方向の他端を旋回中心軸として下方に変位せしめられる）。押圧壁４８の各々の下端部は、通過開口用開封予定部４０の各々を上記の如く破断した状態で容器開口部１０２内に突出する。蓋本体４は通過開口用開封予定部４０の各々の部位で開封される。通過開口用開封予定部４０の各々が上記周方向の他端を旋回中心軸として下方に変位せしめられることに起因して、通過開口用開封予定部４０の各々の開口面積は比較的大きくせしめられる。したがってこの実施形態においては、押圧壁４８の各々に上記リブ６２を形成する必要はない。押圧壁４８の各々の下端を規定する湾曲面４９ａの機能は、先に述べた湾曲面４９と実質上同じであるので、説明は省略する。なお押圧壁４８の各々の湾曲面４９ａは、これを傾斜面で形成してもよい。そして先の実施形態において説明したと実質上同じ作用により、昇降部材６を開封下降位置から使用中間位置に上昇させた状態においても、押圧壁４８の各々は対応する通過開口用開封予定部４０に作用して下方に変位せしめている。
【００２８】
図１４及び図１５には複合容器蓋２の他の実施形態が示されている。昇降部材６の天面壁４４の中央部には、図６及び図７に示す昇降部材６における排出開口５０と実質上同じ形状の通過開口６４が形成され、通過開口６４の上端は、カバー部６６により覆われている。天面壁４４の上面から若干突出するよう形成されたカバー部６６には、複数個の排出開口６８が形成されている。排出開口６８の各々は、それに限定されるものではないが、断面が矩形状をなす小孔から形成されている。図１５からも明らかなように、複数個の排出開口６８は上面から見て、比較的密集してメッシュ状に配列されている。
【００２９】
昇降部材６を初期上昇位置から開封下降位置に下降させると、蓋本体４における突出壁３２の頂壁３４が通過開口６４に密着して嵌合せしめられるので、排出開口６８の各々は閉じられる。また昇降部材６を開封下降位置から使用中間位置に上昇させると、通過開口６４が頂壁３４から離されて開かれるので、排出開口６８の各々も開かれる。昇降部材６を蓋本体に対し使用中間位置に上昇させた状態で容器１００を傾けて、容器１００の図示しない胴部を押圧することにより、容器１００内の液体は、容器開口部１０２、通過開口用開封予定部４０の各々の開封部、蓋本体４の突出壁３２と昇降部材６の押圧壁４８の各々及び円筒部６０との間の隙間（空間部）、及び通過開口６４を通って排出開口６８の各々から適宜に排出される。その他の構成及び作用効果は、図１〜図１１を参照して説明した複合容器蓋２と実質上同じであるので説明は省略する。図１４及び図１５に示す複合容器蓋２によれば、排出開口６８が複数個形成されかつ各々が小孔からなると共に密集して配列されているので、先に述べた効果に加えて更に、使用者が口を昇降部材６の頂部に当てて容器１００内の飲料を飲み込んだ後に、口を昇降部材６の頂部から離す際、口の中に含まれた食べ物の一部が飲料と共に容器１００内に逆流しにくくなる効果が得られる。更にはまた容器１００内の収容物が急激に排出されるのを防止する効果も得られる。
【００３０】
図１６及び図１７には複合容器蓋２の更に他の実施形態が示されている。この複合容器蓋２は、図１４及び図１５に示された複合容器蓋２と類似した構成を有している。昇降部材６の天面壁４４の下面側の中央部には、下方に突出する環状突起７０が形成されている。環状突起７０の内側には、図６及び図７に示す昇降部材６における排出開口５０と実質上同じ形状の通過開口７２が形成され、通過開口７２の上端は、天面壁４４の一部により覆われている。天面壁４４の、通過開口７２を覆う部分には、複数個の排出開口７４が形成されている。排出開口７４の各々は、図１４及び図１５に示された複合容器蓋２の昇降部材６に形成されている排出開口６８と実質上同一であるので、説明は省略する。図１７からも明らかなように、複数個の排出開口７４は上面から見て、比較的密集してメッシュ状に配列されている。その他の構成、作用及び効果は、図１４及び図１５に示す複合容器蓋２と実質上同じであるので、説明は省略する。
【００３１】
図１８には複合容器蓋２の更に他の実施形態が示されている。昇降部材６の天面壁４４の中央部には、無端状の排出開口用破断可能ライン７６により囲まれた排出開口用開封予定部７８が形成されている。排出開口用破断可能ライン７６は、天面壁４４の内側から形成された破断可能な薄肉部からなる。排出開口用開封予定部７８の上面には把持片７９が付設されている。この把持片７９を引っ張ることによって排出開口用破断可能ライン７６を破断せしめることができ、天面壁４４には排出開口が形成される。この排出開口は、蓋本体４における突出壁３２の頂壁３４に密着して嵌合しうるよう、予め、排出開口用破断可能ライン７６に沿った、天面壁４４の下面側周縁部の形状が規定されている。その他の構成及び作用効果、及び、排出開口が形成された後の作用効果は、図１〜図１１を参照して説明した複合容器蓋２と実質上同じであるので説明は省略する。図１８に示す複合容器蓋２によれば、複合容器蓋２が使用されるまでは、昇降部材６は実質上密封されているので、先に述べた効果に加えて更に、複合容器蓋２の防塵性が一層向上せしめられる、との効果が得られる。
【００３２】
図１９には複合容器蓋２の更に他の実施形態が示されている。昇降部材６の天面壁４４の下面側の中央部には、図６及び図７に示す昇降部材６における排出開口５０と実質上同じ形状の排出開口８０が形成されている。排出開口８０の上端は、無端状の排出開口用破断可能ライン８２により囲まれた排出開口用開封予定部８４が形成され、したがって排出開口８０は排出開口用開封予定部８４により閉じられている。排出開口用破断可能ライン８２は破断可能な薄肉部からなる。排出開口用開封予定部８４は、天面壁４４の上面から突出して位置付けられ、略円板形状をなしている。昇降部材６を初期上昇位置から開封下降位置に下降させると、蓋本体４における突出壁３２の頂壁３４の上面が排出開口用開封予定部８４に作用して排出開口用破断可能ライン８２を破断せしめる。これにより排出開口８０が開かれる。突出壁３２の頂壁３４の上端部は排出開口８０に密着して嵌合せしめられかつその上端が天面壁４４の上面から若干突出して位置付けられる。この実施形態において、突出壁３２の頂壁３４は平坦な上面を有するが、これに代えて、頂壁３４の上面又は排出開口用開封予定部８４の下面に環状の突部（図２０に示すと同様な突部）を形成してもよい。これにより排出開口用破断可能ライン８２は一層容易に破断される。その他の構成及び作用効果は、図１８を参照して説明した複合容器蓋２と実質上同じであるので説明は省略する。
【００３３】
図２０には複合容器蓋２の更に他の実施形態が示されている。昇降部材６の天面壁４４の中央部には、無端状の排出開口用破断可能ライン８６により囲まれた排出開口用開封予定部８８が形成されている。排出開口用破断可能ライン８６は、天面壁４４の内側から形成された破断可能な薄肉部からなる。蓋本体４における突出壁３２の頂壁３４の上面には環状の突部９０が形成されている。昇降部材６を初期上昇位置から開封下降位置に下降させると、蓋本体４における突出壁３２の頂壁３４の突部９０が排出開口用開封予定部８８に作用して排出開口用破断可能ライン８６を破断せしめる。これにより天面壁４４には排出開口が形成される。突出壁３２の頂壁３４の上端部は排出開口に密着して嵌合せしめられる。この排出開口は、蓋本体４における突出壁３２の頂壁３４に密着して嵌合しうるよう、予め、排出開口用破断可能ライン８６に沿った、天面壁４４の下面側周縁部の形状が規定されている。なお、突出壁３２の頂壁３４の突部９０は、排出開口用破断可能ライン８６に直接作用するような大きさに形成する実施形態もある。この実施形態によれば、排出開口用破断可能ライン８６を一層容易に破断せしめることができる。また突出壁３２の頂壁３４に突部９０を形成することなく、図３に示す如き平坦な上面から構成してもよい。更にはまた、突出壁３２の頂壁３４を平坦な上面としかつ排出開口用開封予定部８８の下面に突部９０と同様な環状の突部を形成してもよい。その他の構成及び作用効果は、図１８を参照して説明した複合容器蓋２と実質上同じであるので説明は省略する。
【００３４】
以上、本発明を実施形態に基づいて添付図面を参照しながら詳細に説明したが、本発明は上記実施形態に限定されるものではなく、本発明の範囲を逸脱することなく、更に他の種々の変形あるいは修正が可能である。例えば上記実施形態において、昇降部材６の押圧壁４８は４個形成され、これに対応して蓋本体４の通過開口用開封予定部４０も４個形成されているが、これらの数はそれぞれ２個以上の複数個であれば成立する。
【００３５】
複合容器蓋２の昇降部材として図６及び図７に示す昇降部材６が使用され、この昇降部材６が初期上昇位置に保持された状態において、押圧壁４８の各々は、対応する通過開口用開封予定部４０の周方向の略全域であって半径方向外側（案内壁１４側）に偏った位置に各々の下端が接近して位置付けられる。そして蓋本体４の通過開口用開封予定部４０の各々の薄肉部４２は、全周が一定の残留厚さで形成されているが、この均一な残留厚さによる構成に代えて、半径方向内側を円弧状に延在する突出壁３２と連結された部分４２ａ（図５参照）の周方向の両端部あるいは全部を、それぞれ他の残りの部分の残留厚さよりも厚い残留厚さを有するよう形成する実施形態もある。この場合、薄肉部４２の各々の、上記部分４２ａにおける残留厚さの比較的厚い周方向の両端部あるいは全部は非破断予定部を規定し、非破断予定部を除く残留厚さの比較的薄い他の残りの部分は、破断可能ラインを規定する。
【００３６】
上記の如く、図６及び図７に示す昇降部材６が初期上昇位置に保持された状態において、押圧壁４８の各々は、対応する通過開口用開封予定部４０の周方向の略全域であって半径方向外側（案内壁１４側）に偏った位置に各々の下端が接近して位置付けられるよう構成されているが、これに代えて、押圧壁４８の各々を、対応する通過開口用開封予定部４０の周方向の略全域であって半径方向内側（突出壁３２側）に偏った位置に各々の下端が接近して位置付けられるよう構成する実施形態もある。この場合、昇降部材６を初期上昇位置から開封下降位置に下降させると、押圧壁４８の各々は、対応する通過開口用開封予定部４０の上記偏った位置に作用して下方に押圧するので、押圧壁４８の各々は、対応する通過開口用開封予定部４０を、薄肉部４２の、半径方向外側の部分４２ｂ（図５参照）における周方向の両端を除く他の部分を破断して下方に変位せしめる（通過開口用開封予定部４０の各々は、上記部分４２ｂの両端を旋回中心軸として下方に変位せしめられる）。この実施形態において、押圧壁４８の各々に形成されるリブ６２は、押圧壁４８の各々の外周面から半径方向外側に突出しかつ軸方向に延在するよう形成される。更にまた、通過開口用開封予定部４０の各々の薄肉部４２の、半径方向外側を円弧状に延在する案内壁１４と連結された部分４２ｂ（図５参照）の周方向の両端部あるいは全部を、それぞれ他の残りの部分の残留厚さよりも厚い残留厚さを有するよう形成する実施形態もある。この場合、薄肉部４２の各々の、上記部分４２ｂにおける残留厚さの比較的厚い周方向の両端部あるいは全部は非破断予定部を規定し、非破断予定部を除く残留厚さの比較的薄い他の残りの部分は、破断可能ラインを規定する。
【００３７】
また、図１２及び図１３に示す昇降部材６が初期上昇位置に保持された状態において、押圧壁４８の各々の下端は、対応する通過開口用開封予定部４０の周方向の一端側に偏った位置（周方向に対向する橋絡部３６の一方の側に偏った位置）に接近して位置付けられる。そして蓋本体４の通過開口用開封予定部４０の各々の薄肉部４２は、全周が一定の残留厚さで形成されているが、この均一な残留厚さによる構成に代えて、周方向の両端を半径方向に直線状に延在して、それぞれ周方向に対向する橋絡部３６と連結された部分の他方を、他の残りの部分の残留厚さよりも厚い残留厚さを有するよう形成する実施形態もある。この場合、薄肉部４２の各々の、残留厚さの比較的厚い周方向の上記他端は非破断部を規定し、非破断部を除く残留厚さの比較的薄い他の残りの部分は、破断可能ラインを規定する。
【００３８】
【発明の効果】
本発明に係る複合容器蓋は、従来の如き別個の部材である熱封止シールを使用することなく容器への使用が可能となるので、部品点数を蓋本体及び昇降部材のみの最少（２部品）にせしめて製造コストを低減することができる。また熱封止シールを使用する必要がなくなることに起因して、熱封止シールの容器に対する煩雑な固着作業を不要にせしめ、したがってこの点においても、を低減することができる。更には、昇降部材を蓋本体に対して回転させることなく、軸方向にプッシュ・プル（押し下げ・引き上げ）の操作で使用することができるので、操作がより簡単となる。
【図面の簡単な説明】
【図１】本発明に従って構成された複合容器蓋の好適実施形態を示す断面図であって、図２のＡ−Ａ矢視断面図。
【図２】図１の上面図。
【図３】図１に示す複合容器蓋に使用される蓋本体の断面図であって、図４のＢ−Ｂ矢視断面図。
【図４】図３の上面図。
【図５】図３の下面図。
【図６】図１に示す複合容器蓋に使用される昇降部材の断面図であって、図７のＣ−Ｃ矢視断面図。
【図７】図６の下面図。
【図８】図１に示す複合容器蓋を容器開口部に装着した状態を示す断面図。
【図９】図８に示す複合容器蓋の他の使用状態を示す断面図。
【図１０】図８に示す複合容器蓋の更に他の使用状態を示す断面図。
【図１１】図８に示す複合容器蓋の更に他の使用状態を示す断面図。
【図１２】昇降部材の他の実施形態を示す断面図であって、図１３のＤ−Ｄ矢視断面図。
【図１３】図１２の下面図。
【図１４】本発明に従って構成された複合容器蓋の他の実施形態を容器開口部に装着した状態を示す断面図。
【図１５】図１４に示す複合容器蓋の昇降部材における天面壁の上面のみを示す上面図。
【図１６】本発明に従って構成された複合容器蓋の更に他の実施形態を容器開口部に装着した状態を示す断面図。
【図１７】図１６に示す複合容器蓋の昇降部材における天面壁の上面のみを示す上面図。
【図１８】本発明に従って構成された複合容器蓋の更に他の実施形態を容器開口部に装着した状態を示す断面図。
【図１９】本発明に従って構成された複合容器蓋の更に他の実施形態を容器開口部に装着した状態を示す断面図。
【図２０】本発明に従って構成された複合容器蓋の更に他の実施形態を容器開口部に装着した状態を示す断面図。
【符号の説明】
２複合容器蓋
４蓋本体
６昇降部材
８上面壁
１０スカート壁
１４筒状案内壁
１８橋絡部
２０拘束リング
２２スリット
２８環状上係止突条
３０環状下係止突条
３２筒状突出壁
３４頂壁
３６橋絡部
３８湾曲面
４０通過開口用開封予定部
４２薄肉部
４２ａ半径方向内側の薄肉部
４２ｂ半径方向外側の薄肉部
４４天面壁
４６筒状被案内壁
４７隙間
４８押圧壁
４９、４９ａ湾曲面
５０、６８、７４排出開口
５２周方向破断可能ライン
５４付加裾部
５７、５８環状被係止突条
６０円筒部
６２リブ
６４、７２通過開口
７６、８２、８６排出開口用破断可能ライン
７８、８４、８８排出開口用開封予定部
７９把持片
１００容器
１０２容器開口部[0001]
BACKGROUND OF THE INVENTION
The present invention includes a lid main body attached to the container opening, and an elevating member attached to the lid main body so as to be movable up and down. When the elevating member is lowered from the initial ascending position to the opening lowered position, the lid main body is The present invention relates to a composite container lid to be opened. The composite container lid according to the present invention is applied to a container made of a synthetic resin that contains a container such as a beverage, food, detergent, or medicine.
[0002]
[Prior art]
Japanese Patent No. 2648499 discloses a composite container lid provided with a lid main body attached to the container opening and an outer lid rotatably attached to the lid main body. The lid body is provided with an outer cylindrical portion and an inner cylindrical portion. The outer cylindrical portion is formed on the annular top wall of the lid body, and the inner cylindrical portion is connected to the outer cylindrical portion via a flexible spacer that forms an inclined hinge. The inner cylindrical portion protrudes upward from the outer cylindrical portion, a passage opening is formed at the top of the truncated cone shape, and a cutting knife is formed at the lower end. A plurality of locking guide grooves are spirally formed on the outer peripheral surface of the outer cylindrical portion. An upper cylindrical portion and a lower cylindrical portion are formed in the outer lid. A discharge opening is formed in the conical portion at the top of the frustoconical shape of the outer lid, and an additional skirt portion is formed in the lower end portion so that it can be broken. Locked protrusions are formed on the inner peripheral surface of the lower cylindrical portion. The container opening is sealed by fixing a heat seal.
[0003]
The lid body is attached to the container opening, and the outer lid has its locked projection locked in the locking guide groove of the lid body and the upper cylindrical portion is fitted into the inner cylindrical portion of the lid body, Mounted on the lid body. The lower end of the additional skirt portion of the outer lid is brought into contact with the annular upper surface wall of the lid body. The top of the lid body in the truncated cone shape is brought into close contact with the truncated cone-shaped top portion of the outer lid. Thereby, both the passage opening of the lid body and the discharge opening of the outer lid are closed.
[0004]
When the additional skirt portion of the outer lid is broken and removed from the outer lid, a gap allowing the lowering of the outer lid is formed between the lower end of the outer lid and the annular upper surface wall of the lid body. When the outer lid is rotated in a predetermined direction with respect to the lid body, the locked projection of the outer lid is moved along the locking guide groove of the lid body, so that the outer lid is lowered toward the lid body. The lowering of the outer lid is prevented by the lower end of the outer lid coming into contact with the annular upper surface wall of the lid body. When the outer lid is lowered, the cutting knife of the lid body cuts the heat sealing seal to open the container opening. The inner cylindrical portion of the lid body is positioned so as not to return to the initial position by the hinge action of the spacer. Next, when the outer lid is rotated in the opposite direction with respect to the lid body, the outer lid is raised relative to the lid body and returned to the initial position. The frustoconical top of the outer lid is spaced upward from the frustoconical top of the lid body, so that both the passage opening of the lid body and the discharge opening of the outer lid are opened. Thereby, the contents in the container are discharged from the discharge opening of the outer lid through the passage opening of the lid body.
[0005]
[Problems to be solved by the invention]
In using the above-described conventional composite container lid, in addition to the lid body and the outer lid, a heat-sealed seal must be formed separately, and this heat-sealed seal must be secured to the container opening. In other words, the conventional composite container lid requires a heat-sealing seal as a separate member when used for a container, and the number of parts as a whole increases. In addition, since a complicated fixing operation to the container of the heat sealing seal is essential, the manufacturing cost becomes relatively high. Furthermore, when the composite container lid is used, it is necessary to rotate the outer lid in both directions with respect to the lid body, so that the operation at the time of use becomes relatively complicated.
[0006]
The present invention has been made on the basis of the above facts, and its object is to enable use in a container without using a heat sealing seal, which is a separate member, and thus, the manufacturing cost can be minimized with a minimum number of parts. It is providing the novel composite container lid which can reduce.
[0007]
Another object of the present invention is to provide a novel composite container lid that can reduce the manufacturing cost by eliminating the need for complicated fixing work for the container of the heat seal seal.
[0008]
Still another object of the present invention is to provide a novel composite container lid that is relatively easy to operate during use.
[0009]
Still another object of the present invention is to provide a novel composite container lid that can be used with a simple push-pull operation.
[0010]
Other objects and features of the present invention will become apparent from the following description in which each embodiment of a composite container lid constructed in accordance with the present invention is described in detail with reference to the accompanying drawings.
[0011]
[Means for Solving the Problems]
According to the present invention, comprising: a lid body attached to the container opening; and an elevating member attached to the lid body so as to be movable up and down.
The lid body includes an annular top wall, a cylindrical skirt wall depending from the periphery of the top wall, a cylindrical guide wall protruding upward from the top wall, and arranged at the radially inner side of the guide wall with the top end at the top wall A closed cylindrical projecting wall that is supported by the guide wall via a plurality of bridging portions that are disposed between the outer peripheral surface of the guide wall and the inner peripheral surface of the guide wall in the circumferential direction. Projecting walls, the bridges facing each other in the circumferential direction, and themofA plurality of passage opening opening opening portions connected to the projecting wall and the guide wall extending through the thin wall portion, and engaging the skirt wall with the container opening portion. Installed,
The elevating member includes a top wall, a cylindrical guided wall that hangs down from the top wall, a radial inner side of the guided wall, and a lower portion extending in the axial direction with a gap in the circumferential direction, and an upper portion being the top wall. A plurality of pressing walls connected to each other, and the top wall radially inward of each of the pressing walls is surrounded by at least one discharge opening or an endless discharge opening breakable line.The discharge opening is formed by breaking the breakable line for the discharge opening.A planned opening for the discharge opening is formed,
By fitting the guided wall on the guide wall, the elevating member is held at the initial raised position by the lid body.TheWhen the elevating member is lowered from the initial raised position to the unsealed lowered position, each of the pressing walls isLocated between each of the bridges between the guide wall and the protruding wallIt acts on each of the scheduled opening portions for the passage opening, and the thin wall portion isLeave someBreak and openAnd
A use intermediate position is provided between the initial raising position and the unsealing lowering position of the elevating member, and in the state where the elevating member is raised from the unsealing lowering position and positioned at the use intermediate position, the pressing wall Each lower end of each of the opening opening part of the passage opening is pushed down to the container opening part side, and each opening opening part for passage opening is maintained in a state displaced downward,
In the opening lowered position, the discharge opening is closed by the top wall of the protruding wall of the lid body, and in the intermediate use position, the discharge opening is spaced from the top wall of the protruding wall of the lid body. OpenA composite container lid is provided.
[0012]
In the composite container lid according to the above invention, when the elevating member is lowered from the initial ascending position to the unsealed lowering position, each of the pressing openings provided on the elevating member is each of the opening opening scheduled portions formed on the lid body. Since each of the thin-walled portions is broken by acting on the opening, each of the passage opening opening planned portions is opened. As a result, the container can be used without using a heat-sealing seal which is a separate member as in the prior art. Therefore, since the number of parts is the minimum (two parts) of only the lid body and the lifting member, the manufacturing cost is reduced. In addition, since it is not necessary to use a heat-sealing seal, a complicated fixing work for the container of the heat-sealing seal is made unnecessary, and thus also in this respect, the manufacturing cost is reduced. Furthermore, each of the scheduled opening openings for the opening of the lid body can be opened by simply pushing the lifting member in the axial direction without rotating the elevating member with respect to the lid body, which makes the operation easier.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. 1 to 20, substantially the same parts are denoted by the same reference numerals.
[0014]
1 and 2, a composite container lid generally designated by reference numeral 2 is a lid main body 4 to be mounted on a container opening 102 of a container 100 described later with reference to FIG. And an elevating member 6 that is freely mounted.
[0015]
Referring to FIGS. 3 to 5, a lid body 4 that can be integrally formed from an appropriate synthetic resin such as polypropylene or polyethylene by compression molding or injection molding is suspended from the periphery of the annular upper surface wall 8 and the upper surface wall 8. A cylindrical skirt wall 10, an upper surface wall 8, an annular inner ring 12 that extends downward from the radially inner side of the skirt wall 10, and a cylindrical guide wall 14 that protrudes upward from the upper surface wall 8. A female thread portion 16 is formed on the inner peripheral surface of the skirt wall 10, and a restraining ring 20 is connected to the lower end of the skirt wall 10 through a plurality of bridging portions 18 formed at intervals in the circumferential direction. ing. The bridging portion 18 is formed from a thin portion that can be broken. A slit 22 extending in the circumferential direction is formed between the bridge portions 18, and a ratchet portion 24 is formed in a part of the slit 22. The ratchet portion 24 having a configuration known per se is configured to allow relative rotation in one direction between the restraining ring 20 and the skirt wall 10 but prevent relative rotation in the other direction. The restraining ring 20 having a known structure per se has locking flaps 26 extending from the inner peripheral surface thereof inwardly in the radial direction and toward one side in the circumferential direction at regular intervals in the circumferential direction. A plurality are formed. The locking flap 26 is thin and flexible. The outer diameter of the skirt wall 10 is formed to be larger than the outer diameter of the peripheral edge of the upper surface wall 8, and an annular step is formed between the peripheral edge of the upper surface wall 8 and the upper end of the skirt wall 10. An undercut portion 27 is formed at the lower end of the peripheral edge of the upper surface wall 8. The undercut portion 27 is provided to detachably lock the cover cap 29 (see FIG. 8).
[0016]
An annular upper locking ridge 28 and an annular lower locking ridge 30 are formed on the outer peripheral surface of the guide wall 14 of the lid body 4. The annular upper locking ridge 28 and the annular lower locking ridge 30 are disposed adjacent to each other in the axial direction. The outer diameter of the guide wall 14 at a position below the annular lower locking ridge 30 is formed to be slightly larger than the outer diameter at a position above the annular upper locking ridge 28. On the radially inner side of the guide wall 14, a cylindrical projecting wall 32 is disposed with an annular interval. The upper end of the protruding wall 32 is closed by the top wall 34. The outer peripheral surface of the upper end portion of the protruding wall 32 forms a conical surface whose outer diameter decreases toward the top. The protruding wall 32 is supported by the guide wall 14 via a plurality of bridging portions 36 that are spaced apart in the circumferential direction between the outer peripheral surface thereof and the inner peripheral surface of the guide wall 14. Each of the bridging portions 36 is positioned at a lower end portion of each of the guide wall 14 and the protruding wall 32. The upper end of each bridging portion 36 is formed by a curved surface 38 that descends from the center in the circumferential direction toward both ends. In each of the portions extending in an arc shape surrounded by the bridging portions 36 facing each other in the circumferential direction and the protruding wall 32 and the guide wall 14 extending between them, a passage opening opening planned portion 40 is disposed. ing. The periphery of each of the opening openings 40 for passing openings is connected to the bridge portions 36 that oppose each other in the circumferential direction, the projecting wall 32 that extends in an arc shape therebetween, and the guide wall 14 via the thin wall portion 42. Yes. That is, each of the thin portions 42 defines the peripheral edge of the corresponding passage opening opening scheduled portion 40. In this embodiment, the entire circumference of each thin portion 42 is formed with a constant residual thickness.
[0017]
6 and 7, the elevating member 6 that can be integrally formed by compression molding or injection molding from an appropriate synthetic resin such as polypropylene or polyethylene is a top wall 44 and a cylindrical shape that hangs down from the top wall 44. The guided wall 46 includes four pressing walls 48 that are radially inward of the guided wall 46, extend at least in the axial direction with a gap 47 in the circumferential direction, and extend in the axial direction with the upper portion connected to the top wall 44. . One discharge opening 50 is formed in the top wall 44 on the radially inner side of each of the pressing walls 48. The inner peripheral surface of the discharge opening 50 forms a conical surface that can be aligned with the conical surface formed on the outer peripheral surface of the upper end portion of the protruding wall 32 of the lid body 4. An additional skirt 54 is connected to the lower end of the guided wall 46 via a circumferential breakable line 52 that extends continuously in the circumferential direction. The circumferential breakable line 52 is formed of a thin portion. A grip piece 56 is attached to the additional skirt portion 54, and the circumferential breakable line 52 can be broken by pulling the grip piece 56. On the inner peripheral surface of the lower end of the guided wall 46 and the inner peripheral surface of the upper end of the additional skirt 54, annular locked ridges 57 and 58 are formed, respectively. A cylindrical portion 60 that hangs down from the top surface wall 44 is formed on the top surface wall 44 on the radially inner side of the guided wall 46. Each of the pressing walls 48 is formed so as to further hang down from the lower end of the cylindrical portion 60, and is connected to the top wall 44 via the cylindrical portion 60. Each of the pressing walls 48 has a constant thickness, has an arc shape when viewed from the axial direction, and each lower end includes a curved surface 49 that rises from the center in the circumferential direction toward both ends. Each of the pressing walls 48 is also formed with a rib 62 that protrudes radially inward from the inner peripheral surface and extends upward from the lower end of the pressing wall 48 to the lower surface of the top wall 44 through the cylindrical portion 60. Each of the ribs 62 has a rectangular cross section, and is disposed at the center in the circumferential direction of the corresponding pressing wall 48. The maximum thickness of each of the pressing walls 48 (that is, the thickness including the ribs 62) is defined to be smaller than the gap between the inner peripheral surface of the guide wall 14 of the lid body 4 and the outer peripheral surface of the protruding wall 32. . Each of the gaps 47 partitioning each of the pressing walls 48 in the circumferential direction is formed to extend in the axial direction with a constant circumferential width. That is, each of the gaps 47 is formed by a slit extending linearly from the lower end to the upper side.
[0018]
With reference to FIGS. 1 and 2, the elevating member 6 is held in the lid body 4 at the initial raised position by fitting the guided wall 46 of the elevating member 6 to the guide wall 14 of the lid body 4. That is, when the elevating member 6 is aligned with the lid body 4 and is lowered (pressed down) in the axial direction, the engaged protrusions 57 of the guided wall 46 of the elevating member 6 are locked on the guide wall 14 of the lid body 4. The protrusion 28 and the lower locking protrusion 30 are positioned and locked. Further, the lower end of the additional skirt 54 of the elevating member 6 abuts on the upper surface wall 8 of the lid body 4, and the elevating member 6 is prevented from descending with respect to the lid body 4. Thus, the elevating member 6 is reliably positioned and held at the initial ascending position (first mounting position) shown in FIG. 1 by a simple operation of pushing (pushing) the lid body 4. The outer peripheral surface of the lower end portion of the cylindrical portion 60 and the outer peripheral surface of the pressing wall 48 in the elevating member 6 are movably brought into close contact with the inner peripheral surface of the guide wall 14 of the lid body 4. Each of the pressing walls 48 of the elevating member 6 is positioned between the guide wall 14 and the projecting wall 32 of the lid body 4 so as to correspond to each of the passage opening scheduled opening portions 40. The circumferential length of each of the pressing walls 48 is defined to be slightly shorter than the circumferential length of the corresponding passage opening opening scheduled portion 40, and each of the pressing walls 48 corresponds to the corresponding passage opening opening scheduled portion 40. Each lower end is positioned close to a position that is substantially in the entire circumferential direction and deviated radially outward (guide wall 14 side). Further, the gap 47 between each of the pressing walls 48 is positioned corresponding to each of the bridging portions 36 and is fitted so as to be movable in the axial direction. The discharge opening 50 of the top surface wall 44 of the elevating member 6 is positioned in a state of being opened apart from the top wall 34 of the protruding wall 32 of the lid body 4.
[0019]
As described above, the upper ends of the bridging portions 36 of the lid body 4 are formed by the curved surfaces 38, and the lower ends of the pressing walls 48 of the elevating member 6 are formed by the curved surfaces 49. When being attached to the lid body 4 by being lowered in the axial direction, the gaps 47 between the pressing walls 48 are smoothly guided and fitted to the corresponding bridging portions 36, and thus the elevating member 6 and the lid body 4 are fitted. The relative position in the circumferential direction is smoothly guided, and the mounting operation is performed smoothly and easily. In addition, there is an embodiment in which each curved surface 38 of the bridging portion 36 and each curved surface 49 of the pressing wall 48 are formed by inclined surfaces, and in this case, the same effect as described above can be obtained. In addition, a regulation protrusion (not shown) extending in the vertical direction is formed on one of the outer peripheral surface of the guide wall 14 of the lid body 4 and the inner peripheral surface of the guided wall 46 of the elevating member 6, and the outer peripheral surface of the guide wall 14 There is also an embodiment in which a locking groove (not shown) extending in the vertical direction is formed on the other of the guide wall 46 and the inner peripheral surface of the guided wall 46 so that the regulating protrusion and the locking groove are engaged. In the case of this embodiment, the circumferential relative position between the lid body 4 and the elevating member 6 is more reliably regulated.
[0020]
Referring to FIG. 8, a male screw portion 104 is formed at the upper end portion of the outer peripheral surface of the container opening 102 of the synthetic resin container 100, and a radial direction is provided at a position spaced below the male screw portion 104. A plurality of stoppers 108 protruding outward are formed at intervals in the circumferential direction. An annular flange 106 is formed at a position adjacent to the lower side of each of the stoppers 108. A liquid such as a sports drink is accommodated in the container 100. The composite container lid 2 is attached to the container opening 102 by engaging the skirt wall 10 of the lid body 4 with the container opening 102 of the container 100. That is, by rotating the lid body 4 with respect to the container opening 102 and engaging the female screw portion 16 of the lid main body 4 with the male screw portion 104 of the container opening 102, the lid main body 4 is screwed into the container opening 102. It is done. The inner ring 12 of the lid body 4 is brought into close contact with the inner peripheral surface of the container opening 102. The female threaded portion 16 of the skirt wall 10 of the lid body 4 is engaged with the male threaded portion 104 of the container opening 102, and the restraining ring 20 of the skirt wall 10 is an outer peripheral surface on which each of the stoppers 108 of the container opening 102 is formed. Is positioned to fit. A cover cap 29 is attached to the lid body 4 by using an undercut portion 27 formed on the periphery of the upper surface wall 8. The upper surface of the upper surface wall 8 of the lid body 4 and the elevating member 6 are covered with a cover cap 29, and the composite container lid 2 is protected and dust-proof during distribution. In the above embodiment, the lid body 4 is screw-engaged with the container opening 102. Instead, an annular protrusion is formed on the outer peripheral surface of the container opening 102, and the lid main body 4 is formed on the inner peripheral surface of the lid main body 4. There is also an embodiment in which a ring-shaped protrusion or a plurality of protrusions positioned at intervals in the circumferential direction is formed, and the lid body 4 is attached to the container opening 102 by plugging. In this case, the annular protrusion or the plurality of protrusions of the lid body 4 gets over the annular protrusion of the container opening 102 and is locked downward.
[0021]
For example, when discharging a liquid such as a sports drink contained in the container 100 from the container 100, the cover cap 29 is first removed from the lid body 4 of the composite container lid 2. By pulling the grip piece 56 of the elevating member 6, the circumferential breakable line 52 is broken, and the additional skirt 54 can be removed from the guided wall 46 (see FIG. 9). By removing the additional skirt portion 54 from the guided wall 46, an axial gap is formed between the lower end of the guided wall 46 of the elevating member 6 and the upper surface wall 8 of the lid body 4. Lowering from the raised position to the unsealed lowering position is allowed. That is, when the elevating member 6 is pushed down from the initial raised position shown in FIG. 9 with respect to the lid body 4, it is latched between the annular upper locking ridge 28 and the annular lower locking ridge 30 of the guide wall 14 in the lid body 4. The annular locked protrusion 57 of the guided wall 46 in the lift member 6 that has been moved passes through the annular lower locking protrusion 30 and moves downward, and is lower than the annular lower locking protrusion 30 of the guide wall 14. The lower end of the guided wall 46 of the elevating member 6 comes into contact with the upper surface of the upper surface wall 8 of the lid body 4 and is prevented from moving, and the elevating member 6 is positioned in the unsealed lowering position (see FIG. 10).
[0022]
When the elevating member 6 is lowered from the initial ascending position to the unsealing lowering position as described above, each of the pressing walls 48 acts on each of the opening opening scheduled portions 40 of the lid body 4 as shown in FIG. The part 42 is broken and opened. That is, each of the pressing walls 48 acts on a position that is substantially in the circumferential direction of the corresponding opening opening scheduled opening portion 40 and is biased radially outward (guide wall 14 side) and presses downward. Each of the walls 48 removes the corresponding opening opening opening scheduled portion 40 except for both ends in the circumferential direction in the radially inner portion of the thin portion 42 (the portion 42a connected to the protruding wall 32--see FIG. 5). The other portion is broken and displaced downward (each of the passage opening opening scheduled portions 40 is displaced downward with both ends of the portion 42a as the pivot center axis). The lower end portions of the pressing walls 48 including the ribs 62 project into the container opening portion 102 in a state where each of the passage opening opening planned portions 40 is broken as described above. The lid body 4 is opened at each part of the opening opening scheduled portion 40 for passage opening. The discharge opening 50 of the top wall 44 in the elevating member 6 is closed by the top wall 34 of the protruding wall 32 in the lid body 4. Moreover, since the outer peripheral surface of the cylindrical portion 60 of the elevating member 6 is in close contact with the inner peripheral surface of the guide wall 14 of the lid body 4, even if the container 100 falls down in this state, the leakage of the liquid in the container 100 is ensured. Is prevented.
[0023]
A use intermediate position is provided between the initial raising position and the opening / lowering position of the elevating member 6, and the elevating member 6 can be raised from the opening / lowering position to the use intermediate position. That is, when the elevating member 6 is lifted (lifted) from the unsealed lowering position, the annular locking ridge 57 of the guided wall 46 in the elevating member 6 is moved along the guide wall 14 in the lid body 4 to form an annular shape. The lower locking ridge 30 is brought into contact with the lower side of the lower locking ridge 30 and further rising is prevented, and the lower locking ridge 30 is locked on the lower side. Thereby, the elevating member 6 is positioned at the use intermediate position shown in FIG. Since the inner diameter of the annular locked protrusion 57 is slightly smaller than the outer diameter of the guide wall 14 on the lower side of the annular lower engaging protrusion 30, moderate friction is generated between the two. The elevating member 6 is maintained at the use intermediate position without being naturally lowered with respect to the lid body 4.
[0024]
When the elevating member 6 is raised from the unsealed lowering position to the use intermediate position as described above, the discharge opening 50 of the upper surface wall 44 in the elevating member 6 is opened away from the top wall 34 of the protruding wall 32 in the lid body 4. . Each of the pressing walls 48 of the elevating member 6 that is opened by displacing each of the passage opening opening planned portions 40 of the lid body 4 is also raised, but each of the pressing walls 48 is also in the use intermediate position. Since each lower opening is positioned at a position where the corresponding opening opening planned opening portion 40 is broken and slightly protrudes toward the container opening 102, each of the opening opening opening portion 40 is displaced downward. Maintained. This is because even if each of the scheduled opening portions for passing openings 40 tries to return from the displaced state to the original non-displaced state due to their elasticity, the return is prevented by interference with the respective ribs 62 of the corresponding pressing wall 48. It is. As described above, the container 100 is tilted in a state where the elevating member 6 is raised to the use intermediate position with respect to the lid body, and the body portion (not shown) of the container 100 is pressed, so that the liquid in the container 100 is opened to the container. Ascending and descending through the opening portion of each of the opening portion 102, the opening opening scheduled portion 40 for passing through, the protruding wall 32 of the lid body 4 and each of the pressing walls 48 of the elevating member 6 and the cylindrical portion 60. The material is appropriately discharged from the discharge opening 50 of the member 6. In addition, due to the fact that each of the pressing walls 48 includes the rib 62 as described above, the opening area of each passage opening opening scheduled portion 40 is increased, and the liquid in the container 100 can be easily discharged. .
[0025]
When the composite container lid 2 is separated and discarded after the liquid in the container 100 is completely discharged, the lid body 4 is rotated in the opening direction with respect to the container opening 102. The internal thread portion 16 formed on the skirt wall 10 of the lid body 4 is rotated along the external thread portion 104 formed in the container opening 102. A part of the locking flap 26 of the restraining ring 20 in the lid main body 4 abuts against each of the stoppers 108 of the container opening 102 and is prevented from rotating, so the skirt wall 10 of the lid main body 4 and the restraining ring 20. Relative rotation is generated between the two and the bridge portions 18 of the restraining ring 20 are broken. The composite container lid 2 is removed from the container opening 102 while leaving the restraining ring 20 in the container opening 102. Next, when the restraining ring 20 is removed from the container opening 102, the separation and disposal can be easily performed. In addition, in the state where the container 100 is filled with liquid, it is impossible to mix impurities into the container 100 without breaking the opening opening planned portion 40 for passing opening or the restraining ring 20, and therefore unauthorized use is impossible. It is surely prevented.
[0026]
12 and 13 show another embodiment of the lifting member 6. In this embodiment, the lower end of each pressing wall 48 of the elevating member 6 comprises a curved surface 49a that rises from one end in the circumferential direction toward the other end. Each of the pressing walls 48 is not formed with the rib 62 in the elevating member 6 shown in FIGS. In a state where the elevating member 6 is held at the initial ascending position, the lower end of each of the pressing walls 48 is a position that is biased toward one end side in the circumferential direction of the corresponding opening opening scheduled portion 40 (a bridging opposite to the circumferential direction). Positioned close to a position biased to one side of the portion 36. Since the other structure is substantially the same as the elevating member 6 shown in FIGS.
[0027]
When the elevating member 6 is lowered from the initial ascending position to the unsealing / lowering position, each of the pressing walls 48 causes the corresponding opening opening opening portion 40 to be connected to the other end side in the circumferential direction, that is, the bridging portion 36 facing the circumferential direction. The thin part 42 of the other part except the thin part 42 connected to the other of the two is broken and displaced downward. That is, each of the pressing walls 48 acts on a position biased toward one end side in the circumferential direction of the corresponding opening opening planned portion 40 for passage opening (a position biased toward one side of the bridging portion 36 facing in the circumferential direction). Each of the pressing walls 48 is a portion (the other end side in the circumferential direction) that connects the corresponding opening opening portion for passing opening 40 to the other of the bridging portions 36 facing in the circumferential direction of the thin portion 42. The other portions except for) are broken and displaced downward (each of the passage opening unscheduled portions 40 is displaced downward with the other end in the circumferential direction as the pivot center axis). The lower end of each of the pressing walls 48 protrudes into the container opening 102 in a state where each of the passage opening opening planned portions 40 is broken as described above. The lid body 4 is opened at each part of the opening opening scheduled portion 40 for passage opening. Each opening opening portion 40 for passing opening is displaced downward with the other circumferential end as the pivot center axis, so that the opening area of each opening opening portion 40 for passing opening is made relatively large. . Therefore, in this embodiment, it is not necessary to form the rib 62 on each of the pressing walls 48. Since the function of the curved surface 49a that defines the lower end of each of the pressing walls 48 is substantially the same as the curved surface 49 described above, the description thereof is omitted. The curved surface 49a of each pressing wall 48 may be formed as an inclined surface. Even in the state where the elevating member 6 is raised from the unsealed lowering position to the intermediate use position by substantially the same action as described in the previous embodiment, each of the pressing walls 48 is placed on the corresponding opening opening planned portion 40. Acts and is displaced downward.
[0028]
14 and 15 show another embodiment of the composite container lid 2. A passage opening 64 having substantially the same shape as the discharge opening 50 in the lifting member 6 shown in FIGS. 6 and 7 is formed at the center of the top wall 44 of the lifting member 6, and the upper end of the passage opening 64 has a cover portion 66. Covered by. A plurality of discharge openings 68 are formed in the cover portion 66 formed so as to slightly protrude from the upper surface of the top wall 44. Each of the discharge openings 68 is formed of a small hole having a rectangular cross section, although not limited thereto. As is clear from FIG. 15, the plurality of discharge openings 68 are relatively densely arranged in a mesh shape when viewed from above.
[0029]
When the elevating member 6 is lowered from the initial ascending position to the unsealing and descending position, the top wall 34 of the protruding wall 32 in the lid body 4 is brought into close contact with the passage opening 64 so that each of the discharge openings 68 is closed. Further, when the elevating member 6 is raised from the unsealed lowering position to the use intermediate position, the passage opening 64 is opened away from the top wall 34, so that each of the discharge openings 68 is also opened. The container 100 is tilted with the elevating member 6 raised to the use intermediate position with respect to the lid body, and the body part (not shown) of the container 100 is pressed, so that the liquid in the container 100 is discharged into the container opening 102 and the passage opening. Each of the scheduled opening portions 40 is discharged through the opening portion, the gap (space portion) between the protruding wall 32 of the lid body 4 and the pressing wall 48 of the elevating member 6 and the cylindrical portion 60, and the passage opening 64. The liquid is appropriately discharged from each of the openings 68. Other configurations and operational effects are substantially the same as those of the composite container lid 2 described with reference to FIGS. According to the composite container lid 2 shown in FIGS. 14 and 15, since a plurality of discharge openings 68 are formed and each is formed of small holes and closely arranged, in addition to the above-described effects, When the user puts his mouth on the top of the elevating member 6 and swallows the beverage in the container 100, when the mouth is separated from the top of the elevating member 6, a part of the food contained in the mouth is contained in the container 100 together with the beverage. The effect which becomes difficult to flow back in is acquired. Furthermore, an effect of preventing the contents in the container 100 from being rapidly discharged can be obtained.
[0030]
16 and 17 show still another embodiment of the composite container lid 2. This composite container lid 2 has a configuration similar to the composite container lid 2 shown in FIGS. 14 and 15. An annular protrusion 70 that protrudes downward is formed at the center of the lower surface side of the top wall 44 of the elevating member 6. A passage opening 72 having substantially the same shape as the discharge opening 50 in the elevating member 6 shown in FIGS. 6 and 7 is formed inside the annular protrusion 70, and the upper end of the passage opening 72 is covered by a part of the top wall 44. It has been broken. A plurality of discharge openings 74 are formed in a portion of the top wall 44 that covers the passage opening 72. Since each of the discharge openings 74 is substantially the same as the discharge opening 68 formed in the elevating member 6 of the composite container lid 2 shown in FIGS. 14 and 15, description thereof is omitted. As is clear from FIG. 17, the plurality of discharge openings 74 are relatively densely arranged in a mesh shape when viewed from above. Other configurations, operations, and effects are substantially the same as those of the composite container lid 2 shown in FIGS.
[0031]
FIG. 18 shows still another embodiment of the composite container lid 2. A discharge opening scheduled opening portion 78 surrounded by an endless discharge opening breakable line 76 is formed at the center of the top wall 44 of the elevating member 6. The discharge opening breakable line 76 is formed of a breakable thin portion formed from the inside of the top wall 44. A gripping piece 79 is attached to the upper surface of the discharge opening opening scheduled portion 78. By pulling the grip piece 79, the discharge opening breakable line 76 can be broken, and the top wall 44 is formed with a discharge opening. The shape of the peripheral edge of the lower surface side of the top wall 44 along the discharge opening breakable line 76 is previously set so that the discharge opening can be fitted in close contact with the top wall 34 of the protruding wall 32 in the lid body 4. It is prescribed. Since the other configurations, functions and effects, and functions and effects after the discharge opening is formed are substantially the same as those of the composite container lid 2 described with reference to FIGS. According to the composite container lid 2 shown in FIG. 18, the elevating member 6 is substantially sealed until the composite container lid 2 is used. The effect that dustproofness is further improved is acquired.
[0032]
FIG. 19 shows still another embodiment of the composite container lid 2. A discharge opening 80 having substantially the same shape as the discharge opening 50 in the lifting member 6 shown in FIGS. 6 and 7 is formed at the center of the lower surface side of the top wall 44 of the lifting member 6. The upper end of the discharge opening 80 is formed with a discharge opening scheduled opening portion 84 surrounded by an endless discharge opening breakable line 82, and thus the discharge opening 80 is closed by the discharge opening opening planned portion 84. The discharge opening breakable line 82 is formed of a thin portion that can be broken. The discharge opening unscheduled portion 84 is positioned so as to protrude from the upper surface of the top wall 44 and has a substantially disk shape. When the elevating member 6 is lowered from the initial ascending position to the opening and lowering position, the upper surface of the top wall 34 of the protruding wall 32 in the lid body 4 acts on the discharge opening opening planned portion 84 to break the discharge opening breakable line 82. Let me. As a result, the discharge opening 80 is opened. The upper end portion of the top wall 34 of the projecting wall 32 is fitted in close contact with the discharge opening 80 and the upper end thereof is positioned slightly projecting from the upper surface of the top wall 44. In this embodiment, the top wall 34 of the protruding wall 32 has a flat upper surface. Instead, an annular protrusion (shown in FIG. 20) is formed on the upper surface of the top wall 34 or the lower surface of the opening opening planned portion 84 for the discharge opening. A protrusion similar to the above may be formed. As a result, the discharge opening breakable line 82 is more easily broken. Other configurations and operational effects are substantially the same as those of the composite container lid 2 described with reference to FIG.
[0033]
FIG. 20 shows still another embodiment of the composite container lid 2. A discharge opening scheduled opening portion 88 surrounded by an endless discharge opening breakable line 86 is formed at the central portion of the top wall 44 of the elevating member 6. The discharge opening breakable line 86 is formed of a breakable thin portion formed from the inside of the top wall 44. An annular protrusion 90 is formed on the top surface of the top wall 34 of the protruding wall 32 in the lid body 4. When the elevating member 6 is lowered from the initial ascending position to the opening and lowering position, the protrusion 90 of the top wall 34 of the protruding wall 32 in the lid body 4 acts on the discharge opening opening scheduled portion 88 and the discharge opening breakable line 86. To break. As a result, a discharge opening is formed in the top wall 44. The upper end portion of the top wall 34 of the protruding wall 32 is fitted in close contact with the discharge opening. The shape of the lower peripheral side peripheral portion of the top wall 44 along the discharge opening breakable line 86 is previously set so that the discharge opening can be fitted in close contact with the top wall 34 of the protruding wall 32 in the lid body 4. It is prescribed. In some embodiments, the protrusion 90 of the top wall 34 of the protruding wall 32 is formed in a size that directly acts on the discharge opening breakable line 86. According to this embodiment, the breakable line 86 for the discharge opening can be broken more easily. Moreover, you may comprise from the flat upper surface as shown in FIG. 3, without forming the protrusion 90 in the top wall 34 of the protrusion wall 32. FIG. Furthermore, the top wall 34 of the protruding wall 32 may be a flat upper surface, and an annular protrusion similar to the protrusion 90 may be formed on the lower surface of the discharge opening opening scheduled portion 88. Other configurations and operational effects are substantially the same as those of the composite container lid 2 described with reference to FIG.
[0034]
As mentioned above, although this invention was demonstrated in detail, referring an accompanying drawing based on embodiment, this invention is not limited to the said embodiment, Furthermore, various other various, without deviating from the scope of the present invention. Can be modified or modified. For example, in the above-described embodiment, four pressing walls 48 of the elevating member 6 are formed, and correspondingly four opening opening opening portions 40 of the lid main body 4 are also formed. This is true if there are more than one.
[0035]
6 and 7 is used as the elevating member of the composite container lid 2, and in the state where the elevating member 6 is held at the initial ascending position, each of the pressing walls 48 is opened for the corresponding passage opening. Each lower end is positioned close to a position that is substantially in the entire circumferential direction of the planned portion 40 and is biased radially outward (guide wall 14 side). Each thin portion 42 of the opening opening scheduled portion 40 of the lid main body 4 is formed with a constant residual thickness on the entire circumference, but instead of a configuration with this uniform residual thickness, Are formed in such a manner that both or both ends in the circumferential direction of the portion 42a (see FIG. 5) connected to the projecting wall 32 extending in an arc shape have a residual thickness greater than the residual thickness of the other remaining portions. There are also embodiments. In this case, each of the thin-walled portions 42 has a relatively thick residual thickness in the circumferential portion 42a of the portion 42a, or all of the circumferential portions define a non-breaking scheduled portion, and the remaining thickness excluding the non-breaking scheduled portion is relatively thin. The other remaining part defines a breakable line.
[0036]
As described above, in the state in which the elevating member 6 shown in FIGS. 6 and 7 is held in the initial ascending position, each of the pressing walls 48 is substantially the entire circumferential direction of the corresponding opening opening planned portion 40 for passage opening. Although each lower end is positioned so as to be positioned close to the radially outward (guide wall 14 side) position, each of the pressing walls 48 is replaced with a corresponding opening opening opening portion. There is also an embodiment in which each lower end is positioned close to a position that is substantially in the entire circumferential direction of 40 and is biased radially inward (projecting wall 32 side). In this case, when the elevating member 6 is lowered from the initial ascending position to the opening and lowering position, each of the pressing walls 48 acts on the biased position of the corresponding passage opening opening planned portion 40 and presses downward. Each of the pressing walls 48 breaks down the corresponding opening opening planned portion 40 for passage through the other portion of the thin portion 42 except the circumferential ends of the radially outer portion 42b (see FIG. 5). Displacement (each of the opening opening scheduled portions 40 for passage opening is displaced downward with both ends of the portion 42b as the pivot center axis). In this embodiment, the ribs 62 formed on each of the pressing walls 48 are formed so as to protrude radially outward from the outer peripheral surface of each of the pressing walls 48 and extend in the axial direction. Furthermore, both ends or all of the circumferential portion of a portion 42b (see FIG. 5) of each thin portion 42 of the passage opening opening scheduled portion 40 connected to the guide wall 14 extending in an arc shape on the radially outer side. In some embodiments, each is formed to have a residual thickness that is greater than the residual thickness of the other remaining portions. In this case, each of the thin-walled portions 42 in the circumferential direction, which has a relatively thick residual thickness in the portion 42b, or all of the circumferential portions define a non-breaking portion, and the remaining thickness excluding the non-breaking portion is relatively thin. The other remaining part defines a breakable line.
[0037]
In addition, in the state where the elevating member 6 shown in FIGS. 12 and 13 is held at the initial ascending position, the lower end of each pressing wall 48 is biased toward one end side in the circumferential direction of the corresponding opening opening scheduled portion 40. It is positioned close to the position (position biased to one side of the bridge portion 36 facing in the circumferential direction). And each thin part 42 of the opening opening scheduled portion 40 for the opening of the lid body 4 is formed with a constant residual thickness on the entire circumference, but instead of a configuration with this uniform residual thickness, The other end of each of the portions connected to the bridge portion 36 that is opposed to each other in the circumferential direction is formed to have a residual thickness that is thicker than the remaining thickness of the other remaining portions. There are also embodiments. In this case, each of the thin wall portions 42 in the circumferential direction having a relatively thick residual thickness defines a non-breaking portion, and the other remaining portions having a relatively thin remaining thickness excluding the non-breaking portion are: Define breakable lines.
[0038]
【The invention's effect】
Since the composite container lid according to the present invention can be used for a container without using a heat sealing seal which is a separate member as in the prior art, the number of parts can be minimized with only the lid body and the lifting member (two parts). ) At least, the manufacturing cost can be reduced. Further, since it is not necessary to use a heat-sealing seal, a troublesome fixing operation for the container of the heat-sealing seal is made unnecessary, and thus this point can be reduced. Furthermore, since the lift member can be used by an operation of push-pull (push-down / pull-up) in the axial direction without rotating with respect to the lid body, the operation becomes easier.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a preferred embodiment of a composite container lid constructed according to the present invention, and is a cross-sectional view taken along the line AA in FIG.
FIG. 2 is a top view of FIG.
3 is a cross-sectional view of a lid main body used for the composite container lid shown in FIG. 1, and is a cross-sectional view taken along the line B-B in FIG. 4;
4 is a top view of FIG. 3;
FIG. 5 is a bottom view of FIG. 3;
6 is a cross-sectional view of the elevating member used in the composite container lid shown in FIG. 1, and is a cross-sectional view taken along the line CC in FIG.
7 is a bottom view of FIG. 6. FIG.
8 is a cross-sectional view showing a state where the composite container lid shown in FIG. 1 is attached to the container opening.
9 is a cross-sectional view showing another usage state of the composite container lid shown in FIG.
10 is a cross-sectional view showing still another usage state of the composite container lid shown in FIG.
11 is a sectional view showing still another usage state of the composite container lid shown in FIG. 8. FIG.
12 is a cross-sectional view showing another embodiment of the elevating member, and is a cross-sectional view taken along the line DD in FIG.
13 is a bottom view of FIG. 12. FIG.
FIG. 14 is a cross-sectional view showing a state in which another embodiment of a composite container lid constructed according to the present invention is attached to a container opening.
15 is a top view showing only the top surface of the top wall of the lifting member of the composite container lid shown in FIG.
FIG. 16 is a cross-sectional view showing a state in which still another embodiment of the composite container lid constructed according to the present invention is mounted on the container opening.
17 is a top view showing only the top surface of the top wall of the lifting member of the composite container lid shown in FIG. 16. FIG.
FIG. 18 is a cross-sectional view showing a state in which still another embodiment of the composite container lid constructed according to the present invention is mounted on the container opening.
FIG. 19 is a cross-sectional view showing a state in which still another embodiment of the composite container lid constructed according to the present invention is attached to the container opening.
FIG. 20 is a sectional view showing a state in which still another embodiment of the composite container lid constructed according to the present invention is mounted on the container opening.
[Explanation of symbols]
2 Composite container lid
4 Lid body
6 Lifting member
8 Top wall
10 Skirt wall
14 cylindrical guide wall
18 Bridge
20 Restraint ring
22 Slit
28 Annular upper locking ridge
30 annular lower locking ridge
32 cylindrical protruding wall
34 Top wall
36 Bridge
38 Curved surface
40 Opening scheduled part for passing opening
42 Thin parts
42a Thin inner portion in the radial direction
42b Thin outer portion in the radial direction
44 Top wall
46 Cylindrical guided wall
47 Clearance
48 Pressing wall
49, 49a Curved surface
50, 68, 74 discharge opening
52 Circumferentially breakable line
54 Additional hem
57, 58 Annular locking protrusion
60 cylindrical part
62 Ribs
64, 72 passage opening
76, 82, 86 Breakable line for discharge opening
78, 84, 88 Scheduled opening for discharge opening
79 Grip piece
100 containers
102 Container opening

Claims

容器開口部に装着される蓋本体と、該蓋本体に昇降自在に装着される昇降部材とを備え、
該蓋本体は、環状上面壁、該上面壁の周縁から垂下する円筒状スカート壁、該上面壁から上方に突出する筒状案内壁、該案内壁の半径方向内側に配置され上端が頂壁により閉じられた筒状突出壁であってその外周面と該案内壁の内周面間に周方向に間隔をおいて配設された複数の橋絡部を介して該案内壁に支持された筒状突出壁、それぞれ周方向に対向する該橋絡部とそれらの間を延びる該突出壁及び該案内壁とに薄肉部を介して連結された複数の通過開口用開封予定部を含み、該スカート壁を該容器開口部に係合させることにより該容器開口部に装着され、
該昇降部材は、天面壁、該天面壁から垂下する筒状被案内壁、該被案内壁よりも半径方向内側で下方が周方向に隙間をおいて軸方向に延在し上部が該天面壁に連結された複数の押圧壁を含み、該押圧壁の各々よりも半径方向内側における該天面壁には少なくとも１個の排出開口又は無端状の排出開口用破断可能ラインにより囲まれ、該排出開口用破断可能ラインを破断せしめることにより排出開口が形成される排出開口用開封予定部が形成され、
該案内壁に該被案内壁を被嵌させることにより該昇降部材は該蓋本体に初期上昇位置で保持され、該昇降部材を該初期上昇位置から開封下降位置に下降させると、該押圧壁の各々が該案内壁及び該突出壁間における該橋絡部の各々間に位置付けられて該通過開口用開封予定部の各々に作用し該薄肉部を一部を残して破断して開封し、
該昇降部材の該初期上昇位置と該開封下降位置との間には使用中間位置が設けられ、該昇降部材を該開封下降位置から上昇させて該使用中間位置に位置付けた状態において、該押圧壁の各々の下端が該通過開口用開封予定部の各々の一部を該容器開口部側に押し下げて、該通過開口用開封予定部の各々を下方に変位した状態に維持し、
該開封下降位置においては、該排出開口は該蓋本体の該突出壁の該頂壁によって閉じられ、該使用中間位置においては、該排出開口は該蓋本体の該突出壁の該頂壁から離隔して開かれる、
ことを特徴とする複合容器蓋。A lid main body attached to the container opening, and an elevating member attached to the lid main body so as to be movable up and down;
The lid body includes an annular top wall, a cylindrical skirt wall depending from the periphery of the top wall, a cylindrical guide wall protruding upward from the top wall, and arranged at the radially inner side of the guide wall with the top end at the top wall A closed cylindrical projecting wall that is supported by the guide wall via a plurality of bridging portions that are disposed between the outer peripheral surface of the guide wall and the inner peripheral surface of the guide wall in the circumferential direction. And a plurality of planned opening portions for passage openings connected to the projecting walls, the projecting walls extending between them , and the guide walls via thin-wall portions, Fitted to the container opening by engaging a wall with the container opening;
The elevating member includes a top wall, a cylindrical guided wall that hangs down from the top wall, a radial inner side of the guided wall, and a lower portion extending in the axial direction with a gap in the circumferential direction, and an upper portion being the top wall. A plurality of pressing walls connected to each other, and the top wall radially inward of each of the pressing walls is surrounded by at least one discharge opening or an endless breakable line for the discharge opening , and the discharge opening By opening the breakable line for use, a discharge opening opening scheduled portion for forming a discharge opening is formed,
Elevating member by causing fitted over the該被guide wall the guide wall is held in an initial raised position to the lid body, is lowered to open the lowered position the lifting member from the initial raised position, the pressing pressure wall Each is positioned between each of the bridging portions between the guide wall and the projecting wall and acts on each of the passage opening opening planned portions, and the thin-walled portion is partially broken and opened .
A use intermediate position is provided between the initial raising position and the unsealing lowering position of the elevating member, and in the state where the elevating member is raised from the unsealing lowering position and positioned at the use intermediate position, the pressing wall Each lower end of each of the opening opening part of the passage opening is pushed down to the container opening part side, and each opening opening part for passage opening is maintained in a state displaced downward,
In the opening lowered position, the discharge opening is closed by the top wall of the protruding wall of the lid body, and in the intermediate use position, the discharge opening is spaced from the top wall of the protruding wall of the lid body. Open
A composite container lid.

該橋絡部の各々の上端は周方向の中央から両端に向かって下降する湾曲面又は傾斜面からなる、請求項１記載の複合容器蓋。The composite container lid according to claim 1 , wherein the upper end of each of the bridging portions comprises a curved surface or an inclined surface that descends from the center in the circumferential direction toward both ends.

該昇降部材の該押圧壁の各々の下端は周方向の中央から両端に向かって上昇する湾曲面又は傾斜面からなると共に、該昇降部材が該蓋本体に該初期上昇位置で保持された状態において、該押圧壁の各々の下端は、対応する該通過開口用開封予定部における該案内壁側又は該突出壁側のいずれか一方の側に偏って位置付けられる、請求項１又は請求項２記載の複合容器蓋。The lower end of each of the pressing walls of the elevating member is a curved surface or an inclined surface that rises from the center in the circumferential direction toward both ends, and the elevating member is held in the lid body at the initial raised position. , of each of the pressing pressure wall lower end is positioned deviated to either side of the corresponding said pass guide wall side of the opening for the opening piece or projecting Dekabe side, according to claim 1 or claim 2, wherein Composite container lid.

該昇降部材の該押圧壁の各々には、内周面又は外周面から半径方向内側又は外側に突出しかつ軸方向に延在するリブが形成され、該昇降部材が該使用中間位置に位置付けられた状態において、該押圧壁の各々に形成された該リブの各々が、下方に変位させられた該通過開口用開封予定部の各々に干渉して、該通過開口用開封予定部の、変位しない元の状態への復帰を阻止するよう位置付けられる、請求項１〜３のいずれか１項に記載の複合容器蓋。Each of the pressing walls of the elevating member is formed with a rib protruding radially inward or outward from the inner peripheral surface or outer peripheral surface and extending in the axial direction, and the elevating member is positioned at the intermediate use position. In this state, each of the ribs formed on each of the pressing walls interferes with each of the passage opening opening planned portions displaced downward, so that the passage opening opening planned portion does not displace. The composite container lid according to claim 1 , wherein the composite container lid is positioned to prevent a return to the original state .

該昇降部材の該押圧壁の各々の下端は周方向の一端から他端に向かって上昇する湾曲面又は傾斜面から形成されると共に、該昇降部材が該初期上昇位置に保持された状態において、該押圧壁の各々の下端は、対応する該通過開口用開封予定部における、周方向に対向する該橋絡部のいずれか一方の側に偏って位置付けられる、請求項１又は請求項２記載の複合容器蓋。In the state where each lower end of the pressing wall of the elevating member is formed from a curved surface or an inclined surface that rises from one end in the circumferential direction toward the other end, the elevating member is held at the initial ascending position. each of the lower end of the pressing pressure wall is in the corresponding said passage opening for the opening piece is positioned deviated to one side of the opposing該橋junction circumferentially of claim 1 or claim 2, wherein Composite container lid.

該昇降部材の該被案内壁の下端には、周方向に連続して延びる周方向破断可能ラインを介して付加裾部が接続されており、該昇降部材が該初期上昇位置に位置せしめられている時に、該付加裾部の下端が該蓋本体の該上面壁に当接して該昇降部材の下降を阻止しており、該周方向破断可能ラインを破断して該付加裾部を該被案内壁から除去すると、該昇降部材を該初期上昇位置から該開封下降位置まで下降せしめることが許容される、請求項１〜５のいずれか１項に記載の複合容器蓋。An additional hem is connected to a lower end of the guided wall of the elevating member via a circumferentially breakable line that extends continuously in the circumferential direction, and the elevating member is positioned at the initial ascending position. The lower end of the additional hem is in contact with the upper surface wall of the lid body to prevent the elevating member from descending, and the circumferentially breakable line is broken to guide the additional hem The composite container lid according to any one of claims 1 to 5 , wherein when removed from the wall, the elevating member is allowed to be lowered from the initial raised position to the unsealed lowered position.