JP3806840B2

JP3806840B2 - Lids with scraps and cans with lids

Info

Publication number: JP3806840B2
Application number: JP2002066647A
Authority: JP
Inventors: 清路川俣
Original assignee: 日本製罐株式会社
Priority date: 2002-03-12
Filing date: 2002-03-12
Publication date: 2006-08-09
Anticipated expiration: 2022-03-12
Also published as: JP2003267420A; TW587052B

Description

【０００１】
【発明の属する技術分野】
この発明は、缶口部に蓋が装着されている状態で商品として流通する蓋付き缶に使用する蓋に関するものである。特に、当該蓋付き缶の中に収容されている粉体等の内容物を所定量ずつ取り出す際の計量に使用される摺り切り片が付いている蓋であって、内容物を取りだし可能な状態にした後も、新たな蓋を別に用意する必要がなく、商品として流通している時に缶口部に装着されていた蓋を使用し続けることができる摺り切り片付き蓋に関する。また、当該蓋が装着されている蓋付き缶に関する。
【０００２】
【従来の技術】
缶口部に蓋が装着されている状態で商品として流通する蓋付き缶に使用する蓋であって、当該蓋付き缶の中に収容されている粉体等の内容物を所定量ずつ取り出す際の計量に使用される摺り切り片が付いていて、内容物を取りだし可能な状態にした後も、新たな蓋を別に用意する必要がなく、当該蓋を缶口部に装着したまま使用し続けることのできる摺り切り片付き蓋及び、当該蓋が装着されている蓋付き缶は従来から提案されている。例えば、本願出願人が出願している「摺り切り片付き蓋及び蓋付き缶」（日本国特許出願公開特開２０００−２８１１１６）がある。
【０００３】
この本願出願人による日本国特開２０００−２８１１１６で提案されている「摺り切り片付き蓋」は、図１（ａ）、（ｂ）、（ｃ）、図２を参照して説明すると、以下のようなものである。
【０００４】
この摺り切り片付き蓋は、缶１の缶口部２へ装着される帽状の合成樹脂製の蓋１０であって、円形状の頂板３と、頂板３の周縁を基端側として垂下する側壁４とからなるものである。頂板３は、頂板３の底面５に基端部を有して頂板３の底面５から側壁４の内周壁に沿って垂下する突片６を有している。この突片６は、蓋１０が缶１の缶口部２へ装着された際に、缶１の缶口部２の周壁７を蓋１０の側壁４内周壁との間で挟持する役割を果たすものである。側壁４は、側壁４を二分する垂直方向の切り込み部９ａ、９ｂを直径対称的に二箇所備えている。帽状の合成樹脂製の蓋１０は、側壁４に二箇所の切り込み部９ａ、９ｂが設けられている位置同士を結ぶ直線が存在するところを境に、あるいは側壁４に二箇所の切り込み部９ａ、９ｂが設けられている位置近傍の直径対称的な側壁４の二箇所の位置を結ぶ直線が存在するところを境に、一方が固定蓋部１０ａ、他方が開閉蓋部１０ｂに区画されている。帽状の合成樹脂製の蓋１０を固定蓋部１０ａと開閉蓋部１０ｂとに区画する側壁４に二箇所の切り込み部９ａ、９ｂが設けられている位置同士を結ぶ直線が存在する部分、あるいは側壁４に二箇所の切り込み部９ａ、９ｂが設けられている位置近傍の直径対称的な側壁４の二箇所の位置を結ぶ直線が存在する部分が、当該部分における底面５が断面逆Ｖ字状の溝１１に形成されていて、当該部分を中心として開閉蓋部１０ｂが固定蓋部１０ａに対して回動できるヒンジ部１２とされている。固定蓋部１０ａ側の頂板３ａは、ヒンジ部１２と平行で、かつヒンジ部１２に近接する位置に、頂板３ａの底面５から垂下する摺り切り片１３を備えている。開閉蓋部１０ｂ側の側壁４ｂは、その基端側に対向する先端側に、あらかじめ定められている上下方向の幅及び、周方向の幅を有する切り離し可能部１４を備えている。
【０００５】
この日本国特開２０００−２８１１１６で提案されている「摺り切り片付き蓋」においては、帽状の合成樹脂製の蓋１０は、缶１の缶口部２に装着されると、頂板３の底面５に基端部を有して頂板３の底面５から側壁４の内周壁に沿って垂下する突片６と、蓋１０の側壁４の内周壁との間に、缶１の缶口部２の周壁７を挟持するので、安定的な装着状態を維持できる。
【０００６】
そこで、この蓋１０が装着されている缶１に内容物（例えば、粉ミルクのような粉体）を充填して商品として販売する際には、缶口部２近傍で、缶１の側壁から水平方向内側に向けて缶１の側壁と一体的に突出形成されている鍔部１７の上側に、図１（ｃ）、図３（ａ）図示のように、アルミニウムフィルム１６等の周縁を接着し、蓋１０を缶口部２に装着した後、缶１の底面側開口から内容物（例えば、粉ミルクのような粉体）を充填し、底板を取り付けて、缶１の底面側を塞ぎ、商品（例えば、缶入り粉ミルク）として市場に流通させる。
【０００７】
この商品を購入した者が、蓋１０を缶口部２から取り外そうとしても、前述したように、蓋１０の頂板３の底面５から側壁４の内周壁に沿って垂下する突片６と、側壁４（４ａ、４ｂ）の内周壁との間に、缶１の缶口部２の周壁７が挟持されているので、蓋１０を全体として取り外そうとすることは困難である。
【０００８】
ただし、開閉蓋部１０ｂ側の側壁４ｂには、その基端側に対向する先端側に、あらかじめ定められている上下方向の幅及び、周方向の幅を有する切り離し可能部１４が備えられているので、この切り離し可能部１４を開閉蓋部１０ｂ側の側壁４ｂから切り離すと、開閉蓋部１０ｂ側の側壁４ｂは変形容易になる。
【０００９】
そこで、前記の商品を購入した者は、切り離し可能部１４を開閉蓋部１０ｂ側の側壁４ｂから切り離し、図１（ａ）、図２に矢印１５で示す方向の力を加えることによって、固定蓋部１０ａが缶１の缶口部２に装着されている状態を維持したまま、ヒンジ部１２を中心として開閉蓋部１０ｂ側を回動させ、開閉を繰り返すことが可能になる。
【００１０】
しかも、開閉蓋部１０ｂを閉蓋した際には、前述したように、開閉蓋部１０ｂ側の頂板３ｂに設けられている突片６と、側壁４ｂの内周壁との間に、缶１の缶口部２の周壁７を挟持できるので、側壁４ｂを変形させようと意図した外力、例えば、開閉蓋部１０ｂを開かせようとして加えられる図２に矢印１５で示す方向の力が特別に加えられない限り、閉蓋状態を確実に保持できる。
【００１１】
そこで、前記の商品を購入した者は、切り離し可能部１４を開閉蓋部１０ｂ側の側壁４ｂから切り離し、固定蓋部１０ａが缶１の缶口部２に装着されている状態を維持したまま、開閉蓋部１０ｂを図２図示のように開いて、アルミニウムフィルム１６を取り除き、内容物（例えば、粉ミルク）をスプーンで掬いとり、固定蓋部１０ａに備えられている摺り切り片１３で摺り切って、掬いとり量を調整しながら、希望する分量の内容物（例えば、粉ミルク）を取り出す。
【００１２】
内容物（例えば、粉ミルク）を取り出した後は、開閉蓋部１０ｂを図２に矢印１５で示した方向と反対の方向へ回転させて、閉蓋し、前述したように、開閉蓋部１０ｂ側の頂板３ｂに設けられている突片６と、側壁４ｂの内周壁との間に、缶１の缶口部２の周壁７を挟持して、閉蓋状態を維持させる。
【００１３】
そこで、このように、内容物を取りだし可能な状態にした後も、新たな蓋を別に用意する必要がなく、最初から商品の缶１に装着されていた蓋１０を使用し続けることができる。
【００１４】
【発明により解決しようとする課題】
日本国特開２０００−２８１１１６で提案されている「摺り切り片付き蓋」は前記のように使用することができるので、内容物を取りだし可能な状態にした後も、新たな蓋を別に用意する必要がなく、商品として流通している時に缶口部に装着されていた蓋を使用し続けることができる。しかも、この蓋は、摺り切り片が付いている蓋であるので、缶に収容されている内容物（例えば、粉ミルク）をスプーンで掬いとる際に、所望の量を計量するため、別添の摺り切り具を缶口部に取り付ける必要がないという優れた効果を発揮するものであった。
【００１５】
この「摺り切り片付き蓋」は、前述したように、開閉蓋部１０ｂを図２に矢印１５で示した方向と反対の方向へ回転させて閉蓋し、開閉蓋部１０ｂ側の頂板３ｂに設けられている突片６と、側壁４ｂの内周壁との間に、缶１の缶口部２の周壁７を挟持して、閉蓋状態を維持できる。そこで、内容物を取りだし可能な状態にして使用している間でも、開閉蓋部１０ｂを閉蓋状態にしておけば、たとえ缶が転倒しても、内容物（例えば、粉ミルク）が外部に漏れ出してしまうおそはない。
【００１６】
しかし、このように転倒してしまうと、缶１の缶口部２の上端面と、開閉蓋部１０ｂ側の頂板３ｂの底面５との間の僅かな隙間や、頂板３の周縁近傍におけるヒンジ部１２の底面５側に形成されている断面逆Ｖ字状の溝１１に内容物が入り込み、開閉蓋部１０ｂを開いたときに、これらの部分に入り込んでいた内容物が外部に漏れ出てしまうおそれがあった。特に、内容物が微粒子状の粉ミルクである場合には、このような傾向があった。
【００１７】
また、切り離し可能部１４を開閉蓋部１０ｂ側の側壁４ｂから切り離した時に、開閉蓋部１０ｂ側の側壁４ｂが変形容易になることを考慮して蓋１０は合成樹脂製とされているので、図２図示のように開蓋した状態から、完全に閉蓋している状態へと、開閉蓋部１０ｂが自動的に復帰することはない。開閉蓋部１０ｂが完全に閉蓋している状態にするためには、開閉蓋部１０ｂ側の頂板３ｂに設けられている突片６と、側壁４ｂの内周壁との間に、缶１の缶口部２の周壁７が確実に挟持される状態になるまで、使用者が、開閉蓋部１０ｂを、図２に示す矢印１５とは反対の方向に、意識的に押し続けなければならない。
【００１８】
しかし、使用者が急いでいた等の理由によりこの作業を完全に行わないでいると、開閉蓋部１０ｂが完全に閉蓋されない状態で止まったままになってしまうことがある。使用者の不注意に起因するこのような場合、極めて小さいとはいえ、外部から缶の内部へ虫などが入り込んでしまう可能性も有り得た。
【００１９】
本発明は、前述したような転倒が生じた場合であっても、その後に開閉蓋部１０ｂを開いたときに、缶１の缶口部２の上端面と、開閉蓋部１０ｂ側の頂板３ｂの底面５との間の僅かな隙間や、頂板３の周縁近傍におけるヒンジ部１２の頂板３の底面５側に形成されている断面逆Ｖ字状の溝１１に入り込んでいた内容物が外部に漏れ出てしまうことを未然に防止することを目的としている。
【００２０】
また、本発明は、前述したように、使用者の不注意に起因して、開閉蓋部１０ｂが完全に閉蓋されない状態で止まったままになってしまっても、外部から缶の内部へ虫などが入り込んでしまう危険性を可能な限り小さくすることを目的としている。
【００２１】
【課題を解決する為の手段】
前記課題を解決するため、この発明が提案する摺り切り片付き蓋は、以下の通りのものである。
【００２２】
まず、この摺り切り片付き蓋は、缶の缶口部へ装着される帽状の合成樹脂製蓋であって、円形状の頂板と当該頂板の周縁を基端側として垂下する側壁とからなるものである。ここで、頂板は、頂板の底面に基端部を有して頂板の底面から側壁の内周壁に沿って垂下する突片であって、前記帽状の合成樹脂製蓋が缶の缶口部へ装着された際に、缶の缶口部の周壁を前記側壁の内周壁との間で挟持する突片を備えている。また、側壁は、側壁を二分する垂直方向の切り込み部を直径対称的に二箇所備えている。そして、前記帽状の合成樹脂製蓋は、側壁に前記二箇所の切り込み部が設けられている位置同士を結ぶ直線が存在するところを境に、あるいは側壁に前記二箇所の切り込み部が設けられている位置近傍の直径対称的な側壁の二箇所の位置を結ぶ直線が存在するところを境に、一方が固定蓋部、他方が開閉蓋部に区画されている。更に、前記帽状の合成樹脂製蓋を固定蓋部と開閉蓋部とに区画する前記の側壁に前記二箇所の切り込み部が設けられている位置同士を結ぶ直線が存在する部分、あるいは側壁に前記二箇所の切り込み部が設けられている位置近傍の直径対称的な側壁の二箇所の位置を結ぶ直線が存在する部分が、当該部分における頂板の底面が断面逆Ｖ字状の溝に形成されていて、当該部分を中心として開閉蓋部が固定蓋部に対して回動できるヒンジ部とされている。そして、固定蓋部側の頂板は、前記ヒンジ部と平行で、かつ前記ヒンジ部に近接する位置に、頂板の底面から垂下する摺り切り片を備えている。開閉蓋部側の側壁は、その基端側に対向する先端側に、あらかじめ定められている上下方向の幅及び、周方向の幅を有する切り離し可能部を備えているものである。
【００２３】
このような摺り切り片付き蓋において、本発明の摺り切り片付き蓋は、前記開閉蓋部側の頂板底面の前記突片が設けられている位置に、頂板の底面から垂下する壁体が側壁の内周に沿って開閉蓋部の全周に渡り設けられており、頂板の底面部分であって、帽状の合成樹脂製蓋が缶の缶口部へ装着された際に、缶の缶口部の周壁の上端に対向する頂板の底面部分を含む前記ヒンジ部の頂板周縁近傍における頂板の底面部分は、前記断面逆Ｖ字状の溝を埋め込む埋め込み部を備えていることを特徴としている。
【００２４】
本発明の摺り切り片付き蓋は、缶口部に装着された際に、側壁内周壁と協動して缶口部周壁を挟持する突片が開閉蓋部側の頂板底面に設けられている位置に、頂板の底面から垂下する壁体が側壁内周に沿って開閉蓋部の全周に渡り設けられている。そこで、缶の内容物を取りだし可能な状態にして使用している場合であって、開閉蓋部１０ｂを閉蓋状態にしている時に、缶が転倒したとしても、内容物（例えば、粉ミルク）が、缶１の缶口部２の上端面と、開閉蓋部１０ｂ側の頂板３ｂの底面５との間の僅かな隙間に入り込み、開閉蓋部１０ｂを開いたときに、この部分に入り込んでいた内容物が外部に漏れ出てしまうことはなくなる。
【００２５】
また、使用者の不注意に起因して、開閉蓋部１０ｂが完全に閉蓋されない状態で止まったままになってしまっても、前記壁体の存在によって、虫などが外部から缶の内部へ入り込んでしまう危険性を確実に低下させることができる。
【００２６】
更に、ヒンジ部の頂板周縁近傍における底面部分は、前記断面逆Ｖ字状の溝を埋め込む埋め込み部を備えているので、缶の内容物を取りだし可能な状態にして使用している場合であって、開閉蓋部１０ｂを閉蓋状態にしている時に、缶が転倒したとしても、内容物（例えば、粉ミルク）が、頂板３の周縁近傍におけるヒンジ部１２の底面５側に形成されている断面逆Ｖ字状の溝１１に入り込み、開閉蓋部１０ｂを開いたときに、この部分に入り込んでいた内容物が外部に漏れ出てしまうことはなくなる。
【００２７】
前述した本発明による作用・効果を確実ならしめるため、頂板の底面から垂下する壁体の頂板の底面から先端までの高さＨ２は、頂板の底面から蓋の側壁の先端までの高さＨ１の３５％〜５５％の範囲になることが望ましい。少なくとも３５％程度なければ、缶の内容物を取りだし可能な状態にして使用していて、開閉蓋部１０ｂを閉蓋状態にしている場合であって、缶が転倒した際に内容物が缶１の缶口部２の上端面と、開閉蓋部１０ｂ側の頂板３ｂの底面との間の僅かな隙間に入り込み、開閉蓋部１０ｂを開いたときに、この部分に入り込んでいた内容物が外部に漏れ出てしまうことを効果的に防止できないからである。また、５５％を越えても、それ以下の場合と比較して効果に特に大きな相違が生じなくなるからである。
【００２８】
また、前述した本発明による作用・効果を確実ならしめるため、ヒンジ部の両端から、それぞれ、ヒンジ部の全長の４％〜７％の長さにわたる部分が、ヒンジ部の頂板底面側の部分において、断面逆Ｖ字状の溝を埋め込む埋め込み部が備えられている頂板周縁近傍に相当することが望ましい。少なくとも、ヒンジ部の両端から、それぞれ、ヒンジ部の全長の４％程度の長さにわたる部分で、ヒンジ部の頂板底面側部分に、断面逆Ｖ字状の溝を埋め込む埋め込み部が備えられていないと、前記の目的を効果的に達成できないが、ヒンジ部の全長の７％程度の長さを越える部分がこのようにされていてもそれ以下の場合と比較して効果に特に大きな相違が生じなくなるからである。
【００２９】
次に、本発明が提案する蓋付き缶は、缶口部の近傍において、缶の側壁から水平方向内側に向けて突出している鍔部が缶の側壁と一体的に形成されている缶の缶口部に、前述した本願の摺り切り片付き蓋が装着されてなる蓋付き缶である。この蓋付き缶は、本発明の摺り切り片付き蓋が発揮する前述した効果が備えられた蓋付き缶となる。
【００３０】
【発明の実施の形態】
この発明の好ましい実施形態を添付図面を参照して説明する。
【００３１】
本発明の摺り切り片付き蓋１０は、缶１の缶口部２（図２）へ装着される帽状の合成樹脂製の蓋１０であって、円形状の頂板３と、頂板３の周縁を基端側として垂下する側壁４とからなる。
【００３２】
頂板３は頂板３の底面５に基端部を有して頂板３の底面５から側壁４の内周壁に沿って垂下する突片６を備えている。この突片６は、蓋１０が缶１の缶口部２へ装着された際に、缶１の缶口部２の周壁７を側壁４の内周壁との間で挟持する役割を果たすものである。
【００３３】
図３（ａ）図示のように、突片６はその先端側に、側壁４の内周壁方向に向かう突部６ａを備えており、缶口部２に形成されている内巻きカール部２ａに係合できるようになっている。このような構造になっていると、閉蓋状態を安定的に維持する上で有利である。
【００３４】
なお図示していないが、缶口部２に形成されているのが外巻きカール部である場合、図３（ａ）図示の場合とは逆に、側壁４の内周壁から内側方向（突片６方向）に向かう突部が側壁４内周壁設けられ、側壁４内周壁に対向する突片６の面は平坦になっている構造、組み合わせにしても同様の作用・効果を得ることができる。
【００３５】
突片６は、図１（ａ）図示のように蓋１０が缶１の缶口部２へ装着された際に、缶１の缶口部２の周壁７を、側壁４の内周壁との間で、図３（ａ）図示のように挟持し、図１（ａ）図示の状態で、蓋１０を缶口部２から取り外そうとしても、蓋１０を全体として取り外すことが困難である程度に安定した閉蓋状態を維持できるようになることを目的として設けられているものである。そこで、費用対効果の観点から、図２、図５、図６図示のように、この目的と果たせる範囲で、所定の間隔をあけて複数個設けておけば十分である。
【００３６】
側壁４は、側壁４を二分する垂直方向の切り込み部９ａ、９ｂを直径対称的に二箇所備えている。
【００３７】
蓋１０は、図１（ａ）図示のように、側壁４に二箇所の切り込み部９ａ、９ｂが設けられている位置同士を結ぶ直線が存在するところを境に、一方が固定蓋部１０ａ、他方が開閉蓋部１０ｂに区画されている。
【００３８】
蓋１０を固定蓋部１０ａと開閉蓋部１０ｂとに区画する側壁４に二箇所の切り込み部９ａ、９ｂが設けられている位置同士を結ぶ直線が存在する部分が、図１（ｂ）図示のように、当該部分における頂板３の底面５が断面逆Ｖ字状の溝１１に形成されていて、当該部分を中心として開閉蓋部１０ｂが、固定蓋部１０ａに対して回動できるヒンジ部１２とされている。
【００３９】
なお、側壁４に二箇所の切り込み部９ａ、９ｂが設けられている位置近傍の直径対称的な側壁４の二箇所の位置を結ぶ直線が存在するところを境に、蓋１０を、固定蓋部１０ａと開閉蓋部１０ｂとに区画することもできる。この場合、蓋１０を固定蓋部１０ａと開閉蓋部１０ｂとに区画する側壁４に二箇所の切り込み部９ａ、９ｂが設けられている位置近傍の直径対称的な側壁４の二箇所の位置を結ぶ直線が存在する部分が、当該部分における頂板３の底面５が断面逆Ｖ字状の溝１１に形成されていて、当該部分を中心として開閉蓋部１０ｂが固定蓋部１０ａに対して回動できるヒンジ部１２になる。
【００４０】
図５は、蓋１０を固定蓋部１０ａと開閉蓋部１０ｂとに区画する側壁４に二箇所の切り込み部９ａ、９ｂが設けられている位置同士を結ぶ直線が存在する部分がヒンジ部１２となる例を表すものである。
【００４１】
また、図６は、側壁４に二箇所の切り込み部９ａ、９ｂが設けられている位置近傍の直径対称的な側壁４の二箇所の位置を結ぶ直線が存在する部分がヒンジ部１２となる例を表すものである。この場合、切り込み部９ａ、９ｂの上端側からヒンジ部１２が存在する位置に向けては、図４（ａ）図示のように、斜めに切れ込み部が設けられることになる。
【００４２】
固定蓋部１０ａ側の頂板３ａは、図１（ｂ）図示のように、ヒンジ部１２と平行で、かつヒンジ部１２に近接する位置に、頂板３ａの底面から垂下する摺り切り片１３を備えている。
【００４３】
開閉蓋部１０ｂ側の側壁４ｂは、その基端側に対向する先端側に、あらかじめ定められている上下方向の幅及び、周方向の幅を有する切り離し可能部１４を備えている。切り離し可能部１４は、薄肉部１４ａ、１４ｂを介して蓋１０の側壁４ｂに接続されている。そこで、摘み部１４ｃを摘んで、図１（ａ）中、矢印１８で示されている方向に引っ張ると、薄肉部１４ａ、１４ｂが切断され、切り離し可能部１４を側壁４ｂから切り取ることができる。
【００４４】
こうして、切り離し可能部１４を側壁４ｂから切り取った後は、合成樹脂製の開閉蓋部１０ｂ側の側壁４ｂは変形容易になる。そこで、切り離し可能部１４が切り取られた位置の側壁４ｂの基端側（図１（ａ）中、上側）を矢印１５方向に押し上げると、図２図示のように、固定蓋部１０ａを缶１の缶口部２に装着させておいたまま、ヒンジ部１２を中心として開閉蓋部１０ｂを回動させ、缶口部２の開閉蓋部１０ｂで塞がれていた部分を開けることができる。
【００４５】
なお、切り離し可能部１４の上下方向の幅及び、周方向の幅は、切り離し可能部１４が切り取られた位置の側壁４ｂの基端側（図１（ａ）中、上側）を矢印１５方向に容易に押し上げることができる程度に、切り離し可能部１４を切り離した後の合成樹脂製の開閉蓋部１０ｂ側の側壁４ｂが変形容易となり、その一方、図２図示の状態から閉蓋した際には、開閉蓋部１０ｂの頂板３ｂに設けられている突片６と側壁４ｂの内周壁との間に缶１の缶口部２の周壁７が挟持されて安定的な閉蓋状態を維持できる程度に、切り離し可能部１４を切り離した後の合成樹脂製の開閉蓋部１０ｂ側の側壁４ｂが強度を有しているようになることを考慮して適宜定めることができる。
【００４６】
そこで、アルミニウムフィルム１６をその摘み片部１９（図３（ａ））を摘んで鍔部１７から引き剥がし、内容物（例えば、粉ミルク）をスプーンで掬いとり、固定蓋部１０ａに備えられている摺り切り片１３で摺り切って、掬いとり量を調整しながら、希望する分量の内容物（例えば、粉ミルク）を取り出す。
【００４７】
内容物（例えば、粉ミルク）を取り出した後は、開閉蓋部１０ｂを図２に矢印１５で示した方向と反対の方向へ回転させて閉蓋し、開閉蓋部１０ｂの頂板３ｂに設けられている突片６と、側壁４ｂの内周壁との間に、缶１の缶口部２の周壁７を挟持して、閉蓋状態を維持させる。
【００４８】
こうして開閉蓋部１０ｂを閉蓋した際には、開閉蓋部１０ｂ側の頂板３ｂに設けられている突片６と、側壁４ｂの内周壁との間に、缶１の缶口部２の周壁７を挟持できるので、側壁４ｂを変形させようと意図した外力、例えば、開閉蓋部１０ｂを開かせようとして加えられる図１（ａ）、図２に矢印１５で示す方向の力が特別に加えられない限り、閉蓋状態を確実に保持できる。
【００４９】
そこで、このように、内容物を取りだし可能な状態にした後も、新たな蓋を別に用意する必要がなく、最初から商品の缶１に装着されていた蓋１０を使用し続けることができる。
【００５０】
なお、図１（ａ）図示のように、固定蓋部１０ａが開閉蓋部１０ｂより小さく、頂板３の直径に直交するヒンジ部１２の長さＬ１が、頂板３の最大直径より小さい状態になっていれば、図２図示のように開蓋した状態では、切り込み部９ａ、９ｂにおける開閉蓋部１０ｂ側の端縁１９ａ、１９ｂは、それぞれ、缶口部２の上端縁に乗り上がり、開閉蓋部１０ｂは開蓋状態を保つことができる。
【００５１】
本発明の摺り切り片付き蓋１０においては、図２、図５図示のように、開閉蓋部１０ｂ側の頂板３ｂの底面５の突片６、６が設けられている位置に、頂板３ｂの底面５から垂下する壁体２０が、側壁４ｂの内周に沿って開閉蓋部１０ｂの全周に渡り設けられている。
【００５２】
蓋１０が缶１の缶口部２に取り付けられて使用されている場合であって、開閉蓋部１０ｂが閉蓋されているときに缶１が転倒したとしても、前述した壁体２０の存在によって、内容物（例えば、粉ミルク）が、缶１の缶口部２の上端面と、開閉蓋部１０ｂ側の頂板３ｂの底面５との間の僅かな隙間に入り込み、開閉蓋部１０ｂを開いたときに、この部分に入り込んでいた内容物が外部に漏れ出てしまうことはなくなる。
【００５３】
また、使用者の不注意に起因して、図４（ａ）図示のように、開閉蓋部１０ｂが完全に閉蓋されない状態で止まったままになってしまっても、開閉蓋部１０ｂと缶口部２との間の隙間は、図４（ｂ）図示のように、壁体２０によって、外部からは塞がれて見える。使用者の不注意に起因して、図４（ａ）図示のように、開閉蓋部１０ｂが完全に閉蓋されない状態で止まったままになってしまっても、この壁体２０の存在によって、虫などが外部から缶の内部に入り込んでしまうという危険性を確実に低下させることができる。
【００５４】
本発明の摺り切り片付き蓋１０は、更に、ヒンジ部１２の頂板３の周縁近傍における底面５側の部分に、図５、図６、図７（ｂ）〜（ｅ）図示のように、断面逆Ｖ字状の溝１１を埋め込む埋め込み部２１ａ、２１ｂを備えている。そこで、蓋１０が缶１の缶口部２に取り付けられて使用されている場合であって、開閉蓋部１０ｂが閉蓋されているときに缶１が転倒したとしても、内容物（例えば、粉ミルク）が、頂板３の周縁近傍におけるヒンジ部１２の底面５側に形成されている断面逆Ｖ字状の溝１１に入り込み、開閉蓋部１０ｂを開いたときに、この部分に入り込んでいた内容物が外部に漏れ出てしまうことはなくなる。
【００５５】
図６は、開閉蓋部１０ｂ側だけでなく、固定蓋部１０ａ側においても、頂板３の底面５に突片６、６が設けられている位置において、頂板３の底面５から垂下する壁体２０が、側壁４ａ、４ｂの内周に沿って固定蓋部１０ａ及び開閉蓋部１０ｂの全周に渡り設けられている例を示すものである。
【００５６】
壁体２０が頂板３ｂの底面５から延びる長さＨ２は、図１（ｃ）に示した頂板３ｂの底面５から蓋１０の側壁４ｂの先端までの高さＨ１の３５％〜５５％の範囲になることが望ましい。少なくとも３５％程度なければ、前述した転倒時の粉漏れを効果的に防止できないからであり、逆に、５５％を越えても、それ以下の場合と比較して効果に特に大きな相違が生じなくなるからである。
【００５７】
また、断面逆Ｖ字状の溝１１を埋め込む埋め込み部２１ａ、２１ｂを備えているヒンジ部１２の頂板３周縁近傍における底面５側の部分は、図５、図６に示したように、ヒンジ部１２の両端から、それぞれ、ヒンジ部１２の全長Ｌ１の４％〜７％になる長さＬ２にわたって設けられているようにしておくことが望ましい。少なくとも、ヒンジ部１２の両端からの長さＬ２が、ヒンジ部１２の全長の長さＬ１の４％程度の長さにわたる部分で、ヒンジ部１２の底面５側に、断面逆Ｖ字状の溝１１を埋め込む埋め込み部２１ａ、２１ｂが備えられていないと、前記の目的を効果的に達成できないからである。また、逆に、ヒンジ部１２の全長Ｌ１の７％程度の長さを越える部分がこのようにされていてもそれ以下の場合と比較して効果に特に大きな相違が生じなくなるからである。
【００５８】
次に、この発明が提案する蓋付き缶は、前述した本発明の摺切り片付き蓋が缶口部に装着されているものである。この缶は、図３（ａ）図示のように、缶口部近傍の缶の側壁が内側方向（円筒状の缶胴の中心方向）へ水平（図３（ａ）中、右側方向）に突出され、この突出された部分が鉛直方向（図３（ａ）中、上下方向）から押圧されて偏平な鍔部１７が、缶１の内側に、缶１の側壁と一体になって形成されているものである。
【００５９】
本発明の蓋付き缶の製造、販売者は、密封用のフィルム（例えば、アルミニウムフィルム）１６の周縁を鍔部１７に接着し、本発明の摺切り片付き蓋１０を前述した缶１の缶口部２に装着し、缶１の底面側を開口したままで納品する。
【００６０】
納品を受けた者は、缶１の底面側から内容物（例えば、粉ミルクのような粉体）を装入し、底板を取り付けて、缶１の底面側を塞ぎ、商品（例えば、缶入り粉ミルク）として市場に流通させる。
【００６１】
缶口部２近傍で、缶１の側壁から内側（円筒状の缶胴の中心方向）に向けて、水平に、缶１の側壁と一体的に突出形成されている鍔部１７を備えている缶及び、このような缶の底面側開口に底板を取り付けて、底面側を塞ぐことは公知の技術であり、ここでは説明を省略する。
【００６２】
以上、添付図面を参照して本発明の好ましい実施形態を説明したが、本発明はかかる実施形態に限定されるものではなく、特許請求の範囲の記載から把握される技術的範囲において種々の形態に変更可能である。
【００６３】
【発明の効果】
この発明によれば、缶の内容物（例えば、粉ミルク）を取りだし可能な状態にした後も、新たな蓋を別に用意する必要がなく、商品として流通している時に缶口部に装着されていた蓋を使用し続けることができる摺り切り片付き蓋において、開閉蓋部側を閉蓋している状態で缶が転倒し、その後、開閉蓋部側を開蓋する際に、内容物が外部に漏れ出てしまうおそれを極めて小さくすることができる。
【００６４】
また、使用者の不注意に起因して、開閉蓋部が完全に閉蓋されない状態で止まったままになってしまっても、缶の内部に外部から虫などが入り込む危険性を極めて小さくすることができる。
【図面の簡単な説明】
【図１】（ａ）この発明の蓋付き缶の一部を省略し、一部を破切して表した斜視図、（ｂ）この発明の摺り切り片付き蓋の図１（ａ）中、Ａ−Ａ線端面図、（ｃ）この発明の摺り切り片付き蓋の図１（ａ）中、Ｊ−Ｊ線断面図。
【図２】図１図示の蓋付き缶において、摺り切り片付き蓋における切り離し可能部を切り離して開閉蓋部を立ち上げて開蓋した状態を説明する一部を省略した斜視図。
【図３】（ａ）図１（ａ）図示の蓋付き缶において、摺り切り片付き蓋の缶口部への装着状態を説明する一部を省略し、図１（ａ）中、Ｂ−Ｂ線断面部分を破切して表した側面図、（ｂ）図１（ａ）図示の蓋付き缶において、摺り切り片付き蓋の缶口部への装着状態を説明する一部を省略した図１（ａ）中、Ｃ−Ｃ線断面図、（ｃ）図１（ａ）図示の蓋付き缶において、摺り切り片付き蓋の缶口部への装着状態を説明する一部を省略した図１（ａ）中、Ｄ−Ｄ線断面図。
【図４】（ａ）図１（ａ）図示の蓋付き缶において、開閉蓋部による完全な閉蓋が行われていない状態の一部を省略し、一部を破切して表した側面図、（ｂ）図４（ａ）の正面図。
【図５】この発明の摺り切り片付き蓋の底面図。
【図６】この発明の他の摺り切り片付き蓋の底面図。
【図７】（ａ）図５、図６中、Ｅ−Ｅ線端面図、（ｂ）図５、図６中、Ｆ−Ｆ線端面図、（ｃ）図５、図６中、Ｇ−Ｇ線端面図、（ｄ）図５、図６中、Ｈ−Ｈ線端面図、（ｅ）図５、図６中、Ｉ−Ｉ線端面図。
【符号の説明】
１缶
２缶口部
２ａ内巻カール部
３頂板
４蓋の側壁
４ａ固定蓋部側の側壁
４ｂ開閉蓋部側の側壁
５蓋の頂板の底面
６突片
６ａ突部
７缶口部の周壁
９ａ、９ｂ切り込み部
１０摺り切り片付き蓋
１０ａ固定蓋部
１０ｂ開閉蓋部
１１断面逆Ｖ字状の溝
１２ヒンジ部
１３摺り切り片
１４切り離し可能部
１４ａ、１４ｂ薄肉部
１４ｃ摘み部
１６アルミニウムフィルム
１９摘み片部
１７鍔部
１９ａ、１９ｂ切り込み部における開閉蓋部側の端縁
２０壁体
２１ａ、２１ｂ埋め込み部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lid used for a can with a lid that is distributed as a product in a state where the lid is attached to the can mouth portion. In particular, it is a lid with a scraped piece used for measurement when taking out a predetermined amount of the contents contained in the can with the lid, and the contents can be taken out Therefore, the present invention relates to a lid with a slicing piece that does not require a new lid separately and can continue to use the lid that has been attached to the can mouth when the product is distributed. The present invention also relates to a can with a lid on which the lid is attached.
[0002]
[Prior art]
A lid used for a can with a lid that circulates as a product in a state where the lid is attached to the can mouth portion, and when a predetermined amount of contents such as powder contained in the lid can are taken out There is a scraped piece used for weighing, and even after the contents can be taken out, there is no need to prepare a new lid, and it continues to be used with the lid attached to the can mouth part. A lid with a slicing piece and a can with a lid to which the lid is attached have been proposed. For example, there is “a lid with a slicing piece and a can with a lid” (Japanese Patent Application Publication No. 2000-281116) filed by the present applicant.
[0003]
The “lid cover with a slicing piece” proposed in Japanese Patent Application Laid-Open No. 2000-281116 by the applicant of the present application will be described with reference to FIGS. 1 (a), (b), (c) and FIG. It ’s like that.
[0004]
The lid with a scraped piece is a cap-shaped synthetic resin lid 10 attached to the can mouth portion 2 of the can 1, and includes a circular top plate 3 and side walls depending on the peripheral edge of the top plate 3 as a base end side. 4. The top plate 3 has a projecting piece 6 that has a base end portion on the bottom surface 5 of the top plate 3 and hangs down from the bottom surface 5 of the top plate 3 along the inner peripheral wall of the side wall 4. The projecting piece 6 plays a role of sandwiching the peripheral wall 7 of the can mouth portion 2 of the can 1 with the inner peripheral wall of the side wall 4 of the lid 10 when the lid 10 is attached to the can mouth portion 2 of the can 1. Is. The side wall 4 is provided with two vertical cuts 9a and 9b that bisect the side wall 4 in a symmetric manner. The cap-shaped synthetic resin lid 10 has two notches 9a on the side wall 4 or on the side wall 4 where there is a straight line connecting the positions where the two notches 9a and 9b are provided. , 9b is provided near the position where the straight line connecting the two positions of the symmetric diameter side wall 4 exists, and one side is divided into the fixed lid part 10a and the other is divided into the opening / closing lid part 10b. . A portion where a straight line connecting the positions where the two notches 9a and 9b are provided on the side wall 4 dividing the cap-shaped synthetic resin lid 10 into the fixed lid portion 10a and the opening and closing lid portion 10b, or A portion where a straight line connecting two positions of the diametrically symmetric side wall 4 in the vicinity of the position where the two notches 9a and 9b are provided on the side wall 4 has an inverted V-shaped cross section at the bottom surface 5 of the portion. The opening / closing lid portion 10b is a hinge portion 12 that can rotate with respect to the fixed lid portion 10a around the portion. The top plate 3a on the fixed lid portion 10a side includes a slide piece 13 that hangs down from the bottom surface 5 of the top plate 3a at a position parallel to the hinge portion 12 and close to the hinge portion 12. The side wall 4b on the opening / closing lid 10b side is provided with a detachable portion 14 having a predetermined vertical width and circumferential width on the distal end side facing the base end side.
[0005]
In the “lid cover with scraper piece” proposed in Japanese Patent Laid-Open No. 2000-281116, when the cap-shaped synthetic resin lid 10 is attached to the can mouth portion 2 of the can 1, the bottom surface of the top plate 3. A can mouth portion 2 of the can 1 between a protruding piece 6 having a base end portion at 5 and hanging down from the bottom surface 5 of the top plate 3 along the inner peripheral wall of the side wall 4 and the inner peripheral wall of the side wall 4 of the lid 10. Since the peripheral wall 7 is clamped, a stable mounting state can be maintained.
[0006]
Therefore, when the can 1 to which the lid 10 is attached is filled with the contents (for example, powder such as powdered milk) and sold as a product, the can 1 is placed horizontally from the side wall of the can 1 near the can mouth 2. As shown in FIGS. 1 (c) and 3 (a), the peripheral edge of the aluminum film 16 or the like is bonded to the upper side of the flange portion 17 formed integrally with the side wall of the can 1 so as to be directed inward in the direction. After the lid 10 is attached to the can mouth portion 2, the contents (for example, powder such as powdered milk) are filled from the opening on the bottom side of the can 1, and the bottom plate is attached to close the bottom side of the can 1. (For example, powdered milk in cans).
[0007]
Even if a person who has purchased this product tries to remove the lid 10 from the can mouth portion 2, as described above, the projecting piece 6 that hangs down from the bottom surface 5 of the top plate 3 of the lid 10 along the inner peripheral wall of the side wall 4; Since the peripheral wall 7 of the can mouth portion 2 of the can 1 is sandwiched between the inner peripheral walls of the side walls 4 (4a, 4b), it is difficult to remove the lid 10 as a whole.
[0008]
However, the side wall 4b on the side of the opening / closing lid 10b is provided with a detachable portion 14 having a predetermined vertical width and circumferential width on the distal end side facing the base end side. Therefore, when the separable portion 14 is separated from the side wall 4b on the opening / closing lid 10b side, the side wall 4b on the opening / closing lid 10b side is easily deformed.
[0009]
Therefore, a person who has purchased the product separates the detachable portion 14 from the side wall 4b on the opening / closing lid portion 10b side, and applies a force in the direction indicated by the arrow 15 in FIGS. While maintaining the state in which the portion 10a is mounted on the can mouth portion 2 of the can 1, the opening / closing lid portion 10b side can be rotated around the hinge portion 12 to repeat the opening and closing.
[0010]
Moreover, when the opening / closing lid 10b is closed, as described above, the can 1 is placed between the protruding piece 6 provided on the top plate 3b on the opening / closing lid 10b side and the inner peripheral wall of the side wall 4b. Since the peripheral wall 7 of the can mouth portion 2 can be clamped, an external force intended to deform the side wall 4b, for example, a force in the direction indicated by the arrow 15 in FIG. Unless closed, the closed state can be reliably maintained.
[0011]
Therefore, a person who has purchased the above-mentioned product disconnects the separable portion 14 from the side wall 4b on the opening / closing lid portion 10b side, and maintains the state where the fixed lid portion 10a is attached to the can mouth portion 2 of the can 1. As shown in FIG. 2, the opening / closing lid 10b is opened, the aluminum film 16 is removed, the contents (for example, powdered milk) are scooped with a spoon, and then sliced with a scraping piece 13 provided in the fixed lid 10a. Then, while adjusting the amount of scooping, take out the desired amount of contents (for example, powdered milk).
[0012]
After taking out the contents (for example, powdered milk), the lid 10b is rotated in the direction opposite to the direction indicated by the arrow 15 in FIG. 2 to close the lid, and as described above, the lid 10b side. The peripheral wall 7 of the can mouth portion 2 of the can 1 is sandwiched between the protruding piece 6 provided on the top plate 3b and the inner peripheral wall of the side wall 4b, and the closed state is maintained.
[0013]
Thus, even after the contents can be taken out in this manner, it is not necessary to prepare a new lid, and the lid 10 that has been attached to the can 1 of the product can be used continuously from the beginning.
[0014]
[Problems to be solved by the invention]
Since the “cover with a scraped piece” proposed in Japanese Patent Laid-Open No. 2000-281116 can be used as described above, it is necessary to prepare a new cover separately after the contents can be taken out. There is no, and it is possible to continue using the lid that was attached to the can mouth when the product is distributed. In addition, since this lid is a lid with scraps, when the contents (for example, powdered milk) contained in the can are sprinkled with a spoon, a desired amount is measured. An excellent effect was exhibited that it was not necessary to attach a scraper to the can mouth portion.
[0015]
As described above, this “lid with cover piece” is provided on the top plate 3b on the side of the opening / closing lid 10b by rotating the opening / closing lid 10b in the direction opposite to the direction indicated by the arrow 15 in FIG. Between the protruding piece 6 and the inner peripheral wall of the side wall 4b, the peripheral wall 7 of the can mouth portion 2 of the can 1 can be sandwiched to maintain the closed state. Therefore, even when the contents can be taken out and used, if the lid 10b is in the closed state, even if the can falls, the contents (for example, powdered milk) leak to the outside. There is no danger of getting out.
[0016]
However, if it falls like this, a slight gap between the upper end surface of the can mouth portion 2 of the can 1 and the bottom surface 5 of the top plate 3b on the opening / closing lid portion 10b side, or a hinge near the periphery of the top plate 3 When the contents enter the groove 11 having an inverted V-shaped cross section formed on the bottom surface 5 side of the portion 12 and the opening / closing lid portion 10b is opened, the contents that have entered these portions leak to the outside. There was a risk of it. In particular, when the contents were fine powdered milk powder, there was such a tendency.
[0017]
In addition, when the detachable portion 14 is separated from the side wall 4b on the opening / closing lid portion 10b side, the lid 10 is made of a synthetic resin in consideration that the side wall 4b on the opening / closing lid portion 10b side can be easily deformed. The opening / closing lid portion 10b does not automatically return from the opened state as shown in FIG. 2 to the completely closed state. In order to make the opening / closing lid 10b completely closed, the can 1 is placed between the protruding piece 6 provided on the top plate 3b on the opening / closing lid 10b side and the inner peripheral wall of the side wall 4b. Until the peripheral wall 7 of the can mouth part 2 is securely clamped, the user must consciously press the opening / closing lid part 10b in the direction opposite to the arrow 15 shown in FIG.
[0018]
However, if this operation is not performed completely due to reasons such as the user being in a hurry, the opening / closing lid portion 10b may remain stopped without being completely closed. In such a case caused by the carelessness of the user, although it is extremely small, there is a possibility that insects may enter the can from the outside.
[0019]
In the present invention, even when the above-described overturn occurs, when the opening / closing lid portion 10b is opened thereafter, the upper end surface of the can mouth portion 2 of the can 1 and the top plate 3b on the opening / closing lid portion 10b side. A slight gap between the bottom plate 5 and the contents of the groove 11 having an inverted V-shaped cross section formed on the bottom plate 5 side of the top plate 3 in the vicinity of the periphery of the top plate 3 are exposed to the outside. The purpose is to prevent leakage.
[0020]
In addition, as described above, according to the present invention, even if the open / close lid portion 10b is stopped completely without being closed due to the carelessness of the user, the insects can be transferred from the outside to the inside of the can. The purpose is to minimize the risk of entering.
[0021]
[Means for solving the problems]
In order to solve the above-described problems, the lid with a sliding piece proposed by the present invention is as follows.
[0022]
First, the lid with a slicing piece is a cap-shaped synthetic resin lid to be attached to the can mouth portion of the can, and is composed of a circular top plate and a side wall depending on the peripheral edge of the top plate. It is. Here, the top plate is a projecting piece that has a base end portion on the bottom surface of the top plate and hangs down from the bottom surface of the top plate along the inner peripheral wall of the side wall, and the cap-shaped synthetic resin lid is a can mouth portion of the can And a projecting piece for sandwiching the peripheral wall of the can mouth portion between the inner peripheral wall of the side wall and the inner peripheral wall of the can. Moreover, the side wall is provided with two cut portions in the vertical direction that bisect the side wall in a diametrically symmetrical manner. The cap-shaped synthetic resin lid is provided with a straight line connecting the positions where the two cut portions are provided on the side wall, or the two cut portions are provided on the side wall. One is divided into a fixed lid portion and the other is divided into an open / close lid portion, where a straight line connecting two positions of the symmetric diameter side wall in the vicinity of the position is present. Further, the cap-shaped synthetic resin lid is divided into a fixed lid portion and an opening / closing lid portion, and the side wall is provided with a straight line connecting positions where the two cut portions are provided, or on the side wall. The portion where the straight line connecting the two positions of the symmetric diameter side wall in the vicinity of the position where the two cut portions are provided is formed in a groove having a reverse V-shaped cross section at the bottom surface of the top plate in the portion. Thus, the opening / closing lid portion is a hinge portion that can rotate with respect to the fixed lid portion around the portion. The top plate on the side of the fixed lid portion is provided with a slide piece that hangs down from the bottom surface of the top plate at a position parallel to the hinge portion and close to the hinge portion. The side wall on the opening / closing lid side is provided with a detachable portion having a predetermined vertical width and circumferential width on the distal end side facing the base end side.
[0023]
In such a lid with a slicing piece, the lid with a slicing piece according to the present invention has a wall body that hangs from the bottom surface of the top plate at the position where the projecting piece is provided on the bottom surface of the top plate on the opening / closing lid part side. It is provided over the entire circumference of the opening and closing lid part along the circumference, A bottom portion of the top plate, including a bottom portion of the top plate facing the upper end of the peripheral wall of the can mouth portion of the can when the cap-shaped synthetic resin lid is attached to the can mouth portion of the can. A bottom surface portion of the top plate in the vicinity of the periphery of the top plate of the hinge portion includes an embedding portion for embedding the groove having the inverted V-shaped cross section.
[0024]
When the lid with a scraped piece of the present invention is attached to the can mouth part, a position where a projecting piece that cooperates with the inner peripheral wall of the side wall to sandwich the peripheral wall of the can mouth part is provided on the bottom surface of the top plate on the opening / closing lid part side In addition, a wall body that hangs down from the bottom surface of the top plate is provided over the entire periphery of the opening / closing lid portion along the inner periphery of the side wall. Therefore, even if the contents of the can are taken out and used, and the can is overturned when the opening / closing lid 10b is in the closed state, the contents (for example, powdered milk) are not Into the slight gap between the upper end surface of the can mouth portion 2 of the can 1 and the bottom surface 5 of the top plate 3b on the side of the opening / closing lid portion 10b, and when the opening / closing lid portion 10b was opened, it entered this portion. The contents will not leak out.
[0025]
Moreover, even if the open / close lid portion 10b remains stopped without being completely closed due to the carelessness of the user, insects and the like are moved from the outside to the inside of the can due to the presence of the wall body. The risk of getting in can be reliably reduced.
[0026]
Furthermore, since the bottom surface portion in the vicinity of the peripheral edge of the top plate of the hinge portion is provided with an embedding portion for embedding the groove having the inverted V-shaped cross section, the contents of the can can be taken out and used. Even if the can falls over when the open / close lid portion 10b is in the closed state, the contents (for example, powdered milk) are formed on the bottom surface 5 side of the hinge portion 12 in the vicinity of the periphery of the top plate 3. When entering the V-shaped groove 11 and opening the opening / closing lid portion 10b, the contents that have entered this portion will not leak to the outside.
[0027]
In order to ensure the operation and effect of the present invention described above, the height H2 from the bottom surface to the tip of the top plate of the wall body hanging from the bottom surface of the top plate is the height H1 from the bottom surface of the top plate to the tip of the side wall of the lid. It is desirable to be in the range of 35% to 55%. If it is not at least about 35%, the contents of the can can be taken out and used, and the opening / closing lid portion 10b is in a closed state. When the opening / closing lid portion 10b is opened, the contents that have entered this portion are externally inserted into the slight gap between the upper end surface of the can mouth portion 2 and the bottom surface of the top plate 3b on the opening / closing lid portion 10b side. It is because it cannot prevent effectively leaking out. Moreover, even if it exceeds 55%, there is no significant difference in effect as compared with the case of less than 55%.
[0028]
Further, in order to ensure the operation and effect of the present invention described above, the portions extending from 4% to 7% of the total length of the hinge portion from both ends of the hinge portion are the portions on the bottom plate side of the hinge portion. It is desirable to correspond to the vicinity of the periphery of the top plate provided with a buried portion for embedding a groove having an inverted V-shaped cross section. At least a portion extending about 4% of the total length of the hinge portion from both ends of the hinge portion, and a buried portion for embedding a groove having an inverted V-shaped cross section is not provided on the top plate bottom side portion of the hinge portion. Although the above-mentioned object cannot be effectively achieved, even if a portion exceeding the length of about 7% of the total length of the hinge portion is made in this way, a particularly large difference in effect is produced compared to the case of less than that. Because it disappears.
[0029]
Next, the can with a lid proposed by the present invention is a can in which a flange projecting inward in the horizontal direction from the side wall of the can is formed integrally with the side wall of the can in the vicinity of the can mouth portion. It is a can with a lid | cover in which the lid | cover with the cut piece of this application mentioned above is mounted | worn with the opening part. This can with a lid is a can with a lid provided with the above-described effects exhibited by the lid with a scraped piece of the present invention.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described with reference to the accompanying drawings.
[0031]
A lid 10 with a scraped piece according to the present invention is a cap-shaped synthetic resin lid 10 to be attached to a can mouth portion 2 (FIG. 2) of a can 1, and includes a circular top plate 3 and a peripheral edge of the top plate 3. It consists of the side wall 4 which hangs down as a base end side.
[0032]
The top plate 3 includes a projecting piece 6 having a base end portion on the bottom surface 5 of the top plate 3 and depending on the inner peripheral wall of the side wall 4 from the bottom surface 5 of the top plate 3. The projecting piece 6 plays a role of sandwiching the peripheral wall 7 of the can mouth portion 2 of the can 1 with the inner peripheral wall of the side wall 4 when the lid 10 is attached to the can mouth portion 2 of the can 1. is there.
[0033]
As shown in FIG. 3 (a), the projecting piece 6 is provided with a projecting part 6 a directed toward the inner peripheral wall of the side wall 4 on the tip side, and an inner curled part 2 a formed in the can mouth part 2. It can be engaged. Such a structure is advantageous in stably maintaining the closed state.
[0034]
Although not shown, when the outer curl portion is formed in the can mouth portion 2, the inner side wall (protruding piece) from the inner peripheral wall of the side wall 4 is opposite to the case shown in FIG. The same action and effect can be obtained even when the projections 6 extending in the six directions are provided on the inner peripheral wall of the side wall 4 and the surface of the projecting piece 6 facing the inner peripheral wall of the side wall 4 is flat.
[0035]
As shown in FIG. 1A, the protruding piece 6 is configured so that the peripheral wall 7 of the can mouth portion 2 of the can 1 is connected to the inner peripheral wall of the side wall 4 when the lid 10 is attached to the can mouth portion 2 of the can 1. 3A, it is clamped as shown in FIG. 3A, and even if it is attempted to remove the lid 10 from the can mouth portion 2 in the state shown in FIG. 1A, it is difficult to remove the lid 10 as a whole. It is provided for the purpose of maintaining a stable closed state. Therefore, from the viewpoint of cost effectiveness, it is sufficient to provide a plurality at predetermined intervals within a range that can achieve this purpose as shown in FIGS. 2, 5, and 6.
[0036]
The side wall 4 is provided with two vertical cuts 9a and 9b that bisect the side wall 4 in a symmetric manner.
[0037]
As shown in FIG. 1A, the lid 10 has a fixed lid portion 10a on one side, where a straight line connecting the positions where the two notches 9a and 9b are provided on the side wall 4 exists. The other is divided into an opening / closing lid 10b.
[0038]
The portion where the straight line connecting the positions where the two notches 9a and 9b are provided on the side wall 4 partitioning the lid 10 into the fixed lid portion 10a and the opening / closing lid portion 10b is shown in FIG. As described above, the bottom surface 5 of the top plate 3 in the portion is formed in the groove 11 having an inverted V-shaped cross section, and the hinge portion 12 in which the opening / closing lid portion 10b can rotate with respect to the fixed lid portion 10a around the portion. It is said that.
[0039]
It should be noted that the lid 10 is fixed to the fixed lid portion at a boundary where there is a straight line connecting the two positions of the diametrically symmetrical side wall 4 in the vicinity of the position where the two notches 9a and 9b are provided in the side wall 4. It can also be partitioned into 10a and an opening / closing lid 10b. In this case, the two positions of the symmetric diameter side wall 4 in the vicinity of the position where the two notches 9a and 9b are provided in the side wall 4 dividing the lid 10 into the fixed lid part 10a and the opening / closing lid part 10b. In the portion where the straight line to be connected exists, the bottom surface 5 of the top plate 3 in the portion is formed in a groove 11 having an inverted V-shaped cross section, and the opening / closing lid portion 10b rotates around the portion with respect to the fixed lid portion 10a. The hinge 12 can be formed.
[0040]
In FIG. 5, the portion where the straight line connecting the positions where the two notches 9 a and 9 b are provided on the side wall 4 dividing the lid 10 into the fixed lid portion 10 a and the opening and closing lid portion 10 b is the hinge portion 12. Represents an example.
[0041]
FIG. 6 shows an example in which the hinge portion 12 is a portion where a straight line connecting two positions of the diametrically symmetrical side wall 4 in the vicinity of the position where the two cut portions 9a and 9b are provided on the side wall 4. Is expressed. In this case, as shown in FIG. 4A, the cut portions are provided obliquely from the upper ends of the cut portions 9a and 9b toward the position where the hinge portion 12 exists.
[0042]
As shown in FIG. 1B, the top plate 3a on the side of the fixed lid portion 10a includes a slide piece 13 that hangs down from the bottom surface of the top plate 3a at a position parallel to the hinge portion 12 and close to the hinge portion 12. ing.
[0043]
The side wall 4b on the opening / closing lid 10b side is provided with a detachable portion 14 having a predetermined vertical width and circumferential width on the distal end side facing the base end side. The separable portion 14 is connected to the side wall 4b of the lid 10 via the thin portions 14a and 14b. Therefore, when the knob portion 14c is picked and pulled in the direction indicated by the arrow 18 in FIG. 1A, the thin-walled portions 14a and 14b are cut, and the detachable portion 14 can be cut off from the side wall 4b.
[0044]
Thus, after the detachable portion 14 is cut off from the side wall 4b, the side wall 4b on the side of the opening / closing lid portion 10b made of synthetic resin is easily deformed. Therefore, when the base end side (the upper side in FIG. 1A) of the side wall 4b at the position where the detachable portion 14 is cut is pushed up in the direction of the arrow 15, the fixed lid portion 10a is moved to the can 1 as shown in FIG. The opening / closing lid portion 10b is rotated around the hinge portion 12 while being attached to the can mouth portion 2, so that the portion of the can mouth portion 2 covered by the opening / closing lid portion 10b can be opened.
[0045]
The vertical width and the circumferential width of the separable portion 14 are set so that the base end side (the upper side in FIG. 1A) of the side wall 4b at the position where the separable portion 14 is cut out is in the direction of the arrow 15. The side wall 4b on the side of the opening / closing lid 10b made of synthetic resin after the detachable portion 14 has been cut to such an extent that it can be easily pushed up is easily deformed, whereas when the lid is closed from the state shown in FIG. The peripheral wall 7 of the can mouth portion 2 of the can 1 is sandwiched between the projecting piece 6 provided on the top plate 3b of the open / close lid portion 10b and the inner peripheral wall of the side wall 4b, so that a stable closed state can be maintained. In addition, it can be determined as appropriate in consideration of the fact that the side wall 4b on the side of the opening / closing lid 10b made of synthetic resin after the detachable portion 14 is cut off.
[0046]
Therefore, the aluminum film 16 is picked and peeled off from the trough part 17 by picking the picking piece part 19 (FIG. 3 (a)), and the contents (for example, powdered milk) are scooped with a spoon and provided in the fixed lid part 10a. A desired amount of contents (for example, powdered milk) is taken out while adjusting the amount of scooping by scraping with the scraped pieces 13.
[0047]
After taking out the contents (for example, powdered milk), the lid 10b is rotated in the direction opposite to the direction indicated by the arrow 15 in FIG. 2 to close the lid, and is provided on the top plate 3b of the lid 10b. The peripheral wall 7 of the can mouth portion 2 of the can 1 is sandwiched between the protruding piece 6 and the inner peripheral wall of the side wall 4b, and the closed state is maintained.
[0048]
When the opening / closing lid portion 10b is thus closed, the peripheral wall of the can mouth portion 2 of the can 1 is between the protruding piece 6 provided on the top plate 3b on the opening / closing lid portion 10b side and the inner peripheral wall of the side wall 4b. 7 can be sandwiched, so that an external force intended to deform the side wall 4b, for example, a force in the direction indicated by the arrow 15 in FIG. 1 (a) and FIG. Unless closed, the closed state can be reliably maintained.
[0049]
Thus, even after the contents can be taken out in this manner, it is not necessary to prepare a new lid, and the lid 10 that has been attached to the can 1 of the product can be used continuously from the beginning.
[0050]
1A, the fixed lid portion 10a is smaller than the opening / closing lid portion 10b, and the length L1 of the hinge portion 12 orthogonal to the diameter of the top plate 3 is smaller than the maximum diameter of the top plate 3. 2, when the lid is opened as shown in FIG. 2, the end edges 19 a and 19 b on the opening / closing lid portion 10 b side of the cut portions 9 a and 9 b ride on the upper edge of the can mouth portion 2, respectively. The part 10b can maintain an open state.
[0051]
As shown in FIGS. 2 and 5, in the lid 10 with the scraped piece of the present invention, the bottom surface of the top plate 3 b is provided at the position where the protruding pieces 6, 6 of the bottom surface 5 of the top plate 3 b on the opening / closing lid portion 10 b side are provided. A wall body 20 that hangs down from 5 is provided over the entire circumference of the opening / closing lid 10b along the inner circumference of the side wall 4b.
[0052]
Even if the lid 10 is used by being attached to the can mouth portion 2 of the can 1 and the can 1 falls down when the open / close lid portion 10b is closed, the presence of the wall body 20 described above As a result, the content (for example, powdered milk) enters a slight gap between the upper end surface of the can mouth portion 2 of the can 1 and the bottom surface 5 of the top plate 3b on the opening / closing lid portion 10b side, and opens the opening / closing lid portion 10b. When this happens, the contents that have entered this part will not leak out.
[0053]
Further, as shown in FIG. 4A, even if the opening / closing lid portion 10b is not completely closed due to the carelessness of the user, the opening / closing lid portion 10b and the can As shown in FIG. 4B, the gap between the mouth portion 2 appears to be blocked from the outside by the wall body 20. Due to the carelessness of the user, as shown in FIG. 4 (a), even if the opening / closing lid portion 10b remains stopped in a state where it is not completely closed, due to the presence of the wall body 20, It is possible to reliably reduce the risk of insects entering the inside of the can from the outside.
[0054]
The lid 10 with a scraped piece of the present invention is further provided with a cross section on the bottom surface 5 side in the vicinity of the peripheral edge of the top plate 3 of the hinge portion 12 as shown in FIGS. 5, 6, and 7 (b) to 7 (e). Embedded portions 21a and 21b for embedding the inverted V-shaped groove 11 are provided. Therefore, even when the lid 10 is used by being attached to the can mouth portion 2 of the can 1 and the can 1 falls down when the opening / closing lid portion 10b is closed, the contents (for example, The powdered milk) enters the groove 11 having an inverted V-shaped cross section formed on the bottom surface 5 side of the hinge portion 12 in the vicinity of the periphery of the top plate 3, and enters the portion when the opening / closing lid portion 10b is opened. Things will not leak out.
[0055]
FIG. 6 shows a wall body that hangs down from the bottom surface 5 of the top plate 3 at the position where the projecting pieces 6 are provided on the bottom surface 5 of the top plate 3 not only on the opening / closing lid portion 10b side but also on the fixed lid portion 10a side. An example in which 20 is provided over the entire circumference of the fixed lid portion 10a and the opening / closing lid portion 10b along the inner circumference of the side walls 4a, 4b is shown.
[0056]
The length H2 in which the wall 20 extends from the bottom surface 5 of the top plate 3b is in the range of 35% to 55% of the height H1 from the bottom surface 5 of the top plate 3b to the tip of the side wall 4b of the lid 10 shown in FIG. It is desirable to become. This is because the powder leakage at the time of falling cannot be effectively prevented if it is at least about 35%, and conversely, even if it exceeds 55%, there is no significant difference in effect compared to the case of less than that. Because.
[0057]
Further, as shown in FIGS. 5 and 6, the portion on the bottom surface 5 side in the vicinity of the periphery of the top plate 3 of the hinge portion 12 provided with the embedded portions 21a and 21b for embedding the groove 11 having the inverted V-shaped cross section is a hinge portion. It is preferable that the two ends of 12 are provided over a length L2 that is 4% to 7% of the total length L1 of the hinge portion 12, respectively. At least the length L2 from both ends of the hinge portion 12 extends over about 4% of the total length L1 of the hinge portion 12, and a groove having an inverted V-shaped cross section is formed on the bottom surface 5 side of the hinge portion 12. This is because the above object cannot be effectively achieved unless the embedded portions 21a and 21b for embedding 11 are provided. On the other hand, even if a portion exceeding about 7% of the total length L1 of the hinge portion 12 is made in this way, there is no significant difference in effect compared to the case where the length is less than that.
[0058]
Next, the can with a lid proposed by the present invention is such that the above-mentioned lid with a sliding piece of the present invention is mounted on the can mouth portion. In this can, as shown in FIG. 3 (a), the side wall of the can in the vicinity of the can mouth portion protrudes horizontally (rightward in FIG. 3 (a)) in the inner direction (center direction of the cylindrical can body). The protruding portion is pressed from the vertical direction (vertical direction in FIG. 3A), and a flat flange portion 17 is formed inside the can 1 so as to be integrated with the side wall of the can 1. It is what.
[0059]
Manufacture and sales of cans with lids according to the present invention can be obtained by adhering the peripheral edge of a sealing film (for example, aluminum film) 16 to the flanges 17, and the cans of the cans 1 described above with the lids 10 with scrapers according to the present invention. Installed in the part 2 and delivered with the bottom side of the can 1 open.
[0060]
The person who has received the delivery inserts the contents (for example, powder such as powdered milk) from the bottom side of the can 1, attaches the bottom plate, closes the bottom side of the can 1, and commodities (for example, canned powdered milk) ) To market.
[0061]
In the vicinity of the can mouth portion 2, there is provided a flange portion 17 that is formed so as to project integrally with the side wall of the can 1 horizontally from the side wall of the can 1 toward the inside (in the direction of the center of the cylindrical can body). It is a known technique to attach the bottom plate to the can and the bottom side opening of such a can and close the bottom side, and the description thereof is omitted here.
[0062]
The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to such embodiments, and various forms are possible within the technical scope grasped from the description of the claims. Can be changed.
[0063]
【The invention's effect】
According to the present invention, it is not necessary to prepare a new lid separately after the contents of the can (for example, powdered milk) can be taken out, and it is attached to the can mouth part when it is distributed as a product. In the lid with a slicing piece that can continue to be used, the can falls down with the lid side closed, and then when the lid side is opened, the contents are exposed to the outside. The risk of leaking out can be greatly reduced.
[0064]
In addition, even if the open / close lid part is not completely closed due to the carelessness of the user, the risk of insects entering the inside of the can is extremely reduced. Can do.
[Brief description of the drawings]
FIG. 1A is a perspective view showing a can with a lid omitted according to the present invention, with a part cut away, and FIG. 1B in FIG. 1A of a lid with a scraped piece according to the present invention. AA line end view, (c) JJ sectional drawing in FIG. 1 (a) of the cover with a scraping piece of this invention.
FIG. 2 is a perspective view of the can with lid shown in FIG. 1 with a part omitted to explain a state in which the separable portion of the lid with a slicing piece is separated and the open / close lid is raised and opened.
3 (a) In the can with lid shown in FIG. 1 (a), a part of the state where the lid with the cut piece is attached to the can mouth portion is omitted, and BB in FIG. 1 (a) is shown. FIG. 1 is a side view of a broken cross-section of the wire, and FIG. 1 is a partially omitted view illustrating a state where the lid with a slicing piece is attached to the can mouth portion in the lid with the lid shown in FIG. FIG. 1A is a cross-sectional view taken along the line C-C in FIG. 1A, and FIG. 1A is a partially omitted view illustrating the mounting state of the lid with a slicing piece on the can mouth portion in the can with the lid shown in FIG. a) DD sectional view taken on the line.
FIG. 4A is a side view of the can with the lid shown in FIG. 1A in which a part of the can that is not completely closed by the opening / closing lid is omitted and a part thereof is broken. FIG. 5B is a front view of FIG.
FIG. 5 is a bottom view of the cover with a scraped piece according to the present invention.
FIG. 6 is a bottom view of another lid with a scraping piece according to the present invention.
7A is an end view taken along the line EE in FIGS. 5 and 6; FIG. 7B is an end view taken along the line FF in FIGS. 5 and 6; FIG. End view of line G, (d) End view of line HH in FIGS. 5 and 6, (e) End view of line II in FIGS.
[Explanation of symbols]
1 can
2 Can mouth part
2a Inner curl
3 Top plate
4 Side walls of the lid
4a Side wall on the fixed lid side
4b Side wall on the opening / closing lid
5 Bottom of the top plate of the lid
6 Projection
6a protrusion
7 Perimeter wall of can mouth
9a, 9b notch
10 Lid with scraper
10a Fixed lid
10b Open / close lid
11 Cross-shaped V-shaped groove
12 Hinge part
13 Cut pieces
14 Separable parts
14a, 14b Thin part
14c Picking part
16 Aluminum film
19 Picking piece
17 Buttocks
19a, 19b The edge on the opening / closing lid part side in the cut part
20 Wall
21a, 21b embedded part

Claims

A cap-shaped synthetic resin lid to be attached to the can mouth of the can,
It consists of a circular top plate and a side wall depending on the periphery of the top plate as the base end side,
The top plate is a projecting piece that has a base end portion on the bottom surface of the top plate and hangs down from the bottom surface of the top plate along the inner peripheral wall of the side wall, and the cap-shaped synthetic resin lid is attached to the can mouth portion of the can. A protruding piece that sandwiches the peripheral wall of the can mouth portion of the can with the inner peripheral wall of the side wall,
The side wall is provided with two diametrically symmetrical cuts in the vertical direction that bisect the side wall,
The cap-shaped synthetic resin lid is provided with a straight line connecting positions where the two cut portions are provided on the side wall, or provided with the two cut portions on the side wall. With a straight line connecting the two positions of the symmetric diameter side wall in the vicinity of the position as a boundary, one is defined as a fixed lid portion and the other is defined as an open / close lid portion.
A portion where a straight line connecting the positions where the two cut portions are provided on the side wall dividing the cap-shaped synthetic resin lid into a fixed lid portion and an opening / closing lid portion, or the two locations on the side wall. The portion where the straight line connecting the two positions of the diametrically symmetric side wall in the vicinity of the position where the notch portion is provided has a bottom surface of the top plate in the portion formed in a reverse V-shaped groove, The opening and closing lid part is a hinge part that can rotate relative to the fixed lid part around the part,
The top plate on the fixed lid portion side is provided with a slide piece that hangs down from the bottom surface of the top plate at a position parallel to the hinge portion and close to the hinge portion,
In the lid with a slide piece, the side wall on the side of the opening / closing lid is provided with a detachable portion having a predetermined vertical width and circumferential width on the distal end side facing the base end side,
A wall body that hangs down from the bottom surface of the top plate is provided over the entire periphery of the opening / closing lid portion at the position where the protruding piece is provided on the bottom surface of the top plate on the opening / closing lid portion side,
A bottom portion of the top plate, including a bottom portion of the top plate facing the upper end of the peripheral wall of the can mouth portion of the can when the cap-shaped synthetic resin lid is attached to the can mouth portion of the can . The bottom portion of the top plate in the vicinity of the periphery of the top plate is provided with an embedded portion for embedding the groove having the inverted V-shaped cross section.

The height H2 from the bottom surface to the tip of the top plate of the wall body depending from the bottom surface of the top plate is in the range of 35% to 55% of the height H1 from the bottom surface of the top plate to the tip of the side wall of the lid. The lid with a scraped piece according to claim 1.

A top plate provided with an embedded portion in which a portion extending from 4% to 7% of the total length of the hinge portion from both ends of the hinge portion is embedded in a groove having an inverted V-shaped cross section in the top plate bottom surface portion of the hinge portion. The lid with a scraped piece according to claim 1 or 2, which corresponds to the vicinity of the periphery.

4. The can mouth portion of the can in which the flange portion that protrudes inward in the horizontal direction from the side wall of the can is formed integrally with the side wall of the can in the vicinity of the can mouth portion. A can with a lid to which the lid with the above-mentioned scraper piece is attached.