JP4384783B2

JP4384783B2 - Pale can made of synthetic resin

Info

Publication number: JP4384783B2
Application number: JP2000108000A
Authority: JP
Inventors: 邦彦岩原; 浩一宮川
Original assignee: Sanko Co Ltd
Current assignee: Sanko Co Ltd
Priority date: 2000-04-05
Filing date: 2000-04-05
Publication date: 2009-12-16
Anticipated expiration: 2020-04-05
Also published as: JP2001287760A

Description

【０００１】
【発明の属する技術分野】
本発明は、粉体や液体等の種々の物品を収容可能な、バケツ状の容器本体と蓋とからなるペール缶に関するものである。
【０００２】
【従来の技術】
従来のペール缶としては、容器本体に蓋を螺合させて被蓋させた後、容器本体に対して蓋が外れる方向に回転しないように、容器本体に対して蓋をロックするロック機構と、容器本体に蓋を被蓋させた後、無断で蓋が外されないように封印する封印機構とが、別々に配設されているものが知られている。
【０００３】
【発明が解決しようとする課題】
上述した従来のペール缶においては、容器本体に対して蓋をロックするロック機構と、容器本体に対して蓋を封印する封印機構とが、別々に配設されており、ロック機構により蓋をロックした後、封印機構により蓋を封印するものであるので、ペール缶への物品の収容作業に時間がかかるという問題があった。また、逆に、ペール缶から物品を取り出す際にも、封印機構を解除し、その後、ロック機構を解除しなければならず、ペール缶からの物品の取り出し作業に時間がかかるという問題があった。
【０００４】
また、上述した従来のペール缶においては、容器本体に対して蓋をロックするロック機構と、容器本体に対して蓋を封印する封印機構とが、別々に配設されているので、ペール缶の構造が複雑になり、従って、ペール缶の製造コストが上昇するという問題があった。
【０００５】
更に、物品が収容されたペール缶を段積みすると、下に位置するペール缶の蓋の側壁が、上方のペール缶の重みにより外側に膨らみ、容器本体に対して蓋をロックするロック機構が外れるという問題があった。
【０００６】
本発明の目的は、上述した従来のペール缶が有する課題を解決することにある。
【０００７】
【課題を解決するための手段】
本発明は、上述した目的を達成するために、容器本体と蓋とからなる合成樹脂製ペール缶において、第１には、容器本体の外周面には、フランジ、該フランジの下方に形成された第１水平リブ、該第１水平リブの下方に形成された第２水平リブ及び該第２水平リブの下方に形成された周壁付きリブが形成されているとともに、容器本体の開口部付近の周方向の四分の一の外周面領域には、螺子状凸部が形成されており、また、第１水平リブと第２水平リブに形成された切り欠き凹部には、第１水平リブと第２水平リブとを連結する係合垂直リブが形成されており、更に、周壁付きリブの周壁部を上方に延長することにより、係合垂直リブの下方には、横長溝部と縦長溝とからなる嵌合溝からなる雌板部材が形成されており、更にまた、雌板部材には、第２水平リブと周壁付きリブとを連結する、容器本体の外周面にに向かう側壁が形成されており、一方、蓋には、容器本体の上端部が嵌合可能な略逆Ｕ字状の周縁部が形成されているとともに、周縁部の内壁面には、螺子状凸部が嵌合する螺子状凹部が形成されており、また、薄肉部を介して、蓋を構成する周縁部の外側壁に連接された板状部には、板状部の相対する両端縁に形成された一対の回動阻止板部と、容器本体の雌板部材に圧入される係止雄部とが形成されており、容器本体に蓋が被蓋された状態においては、蓋の雄部材を構成する板状部の両端縁に形成された一対の回動阻止板部が、容器本体１に形成された係合垂直リブを挟み込むように配置されているとともに、容器本体から蓋を取り外す際には、薄肉部を、切断するように構成したものであり、第２には、容器本体のフランジの上面に、放射方向に延在する凸部を、周方向に、所定の間隔で、突設したものである。
【０００８】
【実施例】
以下に、本発明の実施例について説明するが、本発明の趣旨を越えない限り何ら、本実施例に限定されるものではない。
【０００９】
１は、バケツ状のペール缶を構成する容器本体であり、容器本体１の開口部付近の周方向の四分の一の外周面領域には、二重リブ２ａ、２ｂからなる螺子状凸部２が形成されており、螺子状凸部２は、後述する蓋に形成された螺子状凹部に嵌合するように構成されている。このような、螺子状凸部２は、他の周方向の四分の一の外周面領域にも形成されており、従って、容器本体１の開口部付近には、周方向に、４つの螺子状凸部２が形成されている。
【００１０】
３は、容器本体１の上端から、外側に水平方向に延在するフランジであり、４は、螺旋状溝２ｃの直ぐ下に、容器本体１の外周面を取り巻くように、且つ、外周面から水平状に突設された第１水平リブであり、５は、第１水平リブ４の下方に形成された、同じく、容器本体１の外周面を取り巻くように、且つ、外周面から水平状に突設された第２水平リブである。６は、容器本体１の外周面を取り巻くように、且つ、外周面から水平状に突設された水平部６ａと、水平部６ａの先端部から下方に延在する周壁部６ｂとからなる周壁付きリブであり、第２水平リブ５の下方に配置されている。上記の第１水平リブ４、第２水平リブ５及び周壁付きリブ６は、いずれも、容器本体１の開口部付近の外周面に形成されている。そして、第１水平リブ４の先端４ａの容器本体１の外周面からの距離、第２水平リブ５の先端５ａの容器本体１の外周面からの距離及び周壁付きリブ６の周壁部６ｂの外周面６ｂ’の容器本体１の外周面からの距離は、いずれも、略同じになるように構成されており、フランジ３の容器本体１の外周面からの距離は、上記の距離より短く形成されている。
【００１１】
７ａ、７ｂは、第１水平リブ４と第２水平リブ５とを連結する、所定の間隔を置いて形成された係合垂直リブであり、係合垂直リブ７ａ、７ｂが位置する第１水平リブ４と第２水平リブ５とには、それぞれ、切り欠き凹部４ｂ、５ｂが形成されており、また、係合垂直リブ７ａ、７ｂの先端面と、切り欠き凹部４ｂ内に位置する第１水平リブ４の先端面とは、略面一になるように構成されている。
【００１２】
８は、第２水平リブ５の切り欠き凹部５ｂ内に位置する先端と、周壁付きリブ６の周壁部６ｂとを連結する板状の雌板部材である。雌板部材８は、周壁付きリブ６の周壁部６ｂを、上方に延長することにより形成されており、係合垂直リブ７ａ、７ｂの下方に配置されている。また、雌板部材８には、雌板部材８の両端から、容器本体１の外周面に向かう側壁９が形成されており、また、側壁９は、第２水平リブ５と周壁付きリブ６とを連結するように構成されている。なお雌板部材８の横幅は、係合垂直リブ７ａ、７ｂの間隔より、広く形成されている。
【００１３】
雌板部材８には、横長溝部１０ａと、横長溝部１０ａの中央部から上方の第２水平リブ５まで延在する縦長溝部１０ｂとからなる、正面形状が凸状の嵌合溝１０が穿設されており、更に、第２水平リブ５には、嵌合溝１０の縦長溝１０ｂに連続して、容器本体１の外周面まで延在する水平長溝１０ｃが形成されている。なお、１１ａ、１１ｂは、フランジと第１水平リブ４との間及び第１水平リブ４と第２水平リブ５との間に形成された補強用の縦リブであり、円周方向に、所定の間隔で適当数、形成されている。この縦リブ１１ａ、１１ｂは、容器本体１に被蓋された、後述する蓋の周縁部が、外力を受けた際に、周縁部が、この縦リブ１１ａ、１１ｂに当接し、それ以上の変形を防止する機能を有するものでもある。
【００１４】
１２は、容器本体１に被蓋される蓋であり、水平円板部１３と、水平円板部１３の周縁に沿って配置された略逆Ｕ字状の周縁部１４とを有している。略逆Ｕ字状の周縁部１４内には、容器本体１の上端部が嵌合可能な環状凹部１５が形成されており、周縁部１４の天部１４ａの内面には、容器本体１のフランジ３の上面３ａが当接するように構成されている。１６は、周縁部１４の外側壁１４ｂの内壁面に形成された、上述した容器本体１に形成された二重リブ２ａ、２ｂからなる螺子状凸部２が嵌合する、螺子状凹部であり、本実施例においては、４個、形成された螺子状凸部２に対応して、４個の螺子状凹部１６が形成されている。
【００１５】
１７は、蓋１２を構成する周縁部１４の外側壁１４ｂの下端に、ヒンジとして機能する薄肉部１８を介して連接された雄部材である。雄部材１７は、薄肉部１８を介して、蓋１２を構成する周縁部１４の外側壁１４ｂに連接された板状部１７ａと、板状部１７ａの相対する両端縁１７ｂの中程に、板状部１７ａに対して垂直で、且つ、板状部１７ａが水平状態において、下方に延在する一対の回動阻止板部１７ｃと、上述した従来のペール缶に配設されたロック機構と封印機構の両方の機能を有する係止雄部１７ｄとを有している。
【００１６】
係止雄部１７ｄは、板状部１７ａが水平状態において、板状部１７ａの下面に垂設された板状の支持片１７ｄ１と、支持片１７ｄ１の下端から水平方向に延在する水平部１７ｄ１’に取着された、略Ｖ字状の係止部１７ｄ２とを有しており、略Ｖ字状の係止部１７ｄ２の下端部の側面が、水平部１７ｄ１’の先端に取着されている。略Ｖ字状の係止部１７ｄ２は、楔状先端１７ｄ２’と両翼部分１７ｄ２”とを有し、両翼部分１７ｄ２”の上端の外幅ｗ１は、容器本体１に形成された雌板部材８の嵌合孔１０を構成する縦長溝１０ｂの幅ｗ２より広く、且つ、横長溝１０ａの幅ｗ３より狭く形成されている。また、略Ｖ字状の係止部１７ｄ２の厚みｄ１は、雌板部材８に穿設された嵌合孔１０の横長溝１０ａの高さｈ１より薄く形成されている。
【００１７】
なお、上述した容器本体１及び蓋１２は、それぞれ、合成樹脂で一体に形成されている。
【００１８】
上述したような構成を有する蓋１２を、容器本体１に被蓋するには、容器本体１に、蓋１２を被せた後に、蓋１２を回転させると、蓋１２に形成された螺子状凹部１６に、容器本体１の二重リブ２ａ、２ｂからなる螺子状凸部２が嵌合し、蓋１２が下降し、蓋１２の略逆Ｕ字状の周縁部１４の天部１４ａの内面が、容器本体１のフランジ３の上面３ａに当接し、気密状態に、容器本体１に、蓋１２が被蓋される。容器本体１に、蓋１２が被蓋された状態において、容器本体１に形成された雌板部材８と、薄肉部１８を介して、蓋１２の周縁部１４の外側壁１４ｂの下端に連接された雄部材１７との上下方向の位置が一致するように構成されている。
【００１９】
次いで、蓋１２の雄部材１７を、ヒンジとして機能する薄肉部１８を中心に、容器本体１の外周面方向に回動させると、蓋１２の雄部材１７を構成する板状部１７ａの両端縁１７ｂに形成された一対の回動阻止板部１７ｃが、容器本体１に形成された係合垂直リブ７ａ、７ｂを挟み込むように配置される。また、蓋１２の雄部材１７を構成する板状部１７ａが、略水平状態から略垂直状態に回動する過程で、板状部１７ａに形成された支持片１７ｄ１の水平部１７ｄ１’に取着された、略Ｖ字状の係止部１７ｄ２の楔状先端１７ｄ２’が、図８に示されているように、容器本体１に形成された雌板部材８の嵌合孔１０の縦長溝１０ｂに接近し、その後、更に、雄部材１７を、容器本体１の外周面方向に回動させることにより、図９に示されているように、略Ｖ字状の係止部１７ｄ２は、両翼部分１７ｄ２”が、互いに接近する方向に弾性変形しながら、嵌合孔１０の縦長溝１０ｂに圧入される。蓋１２の雄部材１７を構成する略Ｖ字状の係止部１７ｄ２が、容器本体１の雄部材１７を構成する板状部１７ａに穿設された嵌合孔１０の縦長溝１０ｂに圧入された後は、図１０に示されているように、略Ｖ字状の係止部１７ｄ２の両翼部分１７ｄ２”が、その弾性により、元の形に戻る。上述したように、略Ｖ字状の係止部１７ｄ２の両翼部分１７ｄ２”の外幅ｗ１は、容器本体１に形成された雌板部材８の嵌合孔１０を構成する縦長溝１０ｂの幅ｗ２より広く形成されているので、一端、容器本体１に形成された雌板部材８の嵌合孔１０の縦長溝１０ｂに圧入された略Ｖ字状の係止部１７ｄ２は、その両翼部分１７ｄ２”が、雌板部材８に引っ掛かり、嵌合孔１０の縦長溝１０ｂから抜け出るようなことがない。
【００２０】
なお、上述した容器本体１に形成された雌板部材８と蓋１２に形成された雄部材１７とが係止状態になった際には、雄部材１７の支持片１７ｄ１は、第２水平リブ５に形成された水平長溝１０ｃに挿入され、雄部材１７の容器本体１の外周面方向への回動が、第２水平リブ５により邪魔されないように構成されている。また、蓋１２に形成された雄部材１７の支持片１７ｄ１が、容器本体１の第２水平リブ５に形成された水平長溝１０ｃに挿入されているので、蓋１２の回動が防止できる。更に、この状態においては、雄部材１７の板状部１７ａが、第１水平リブ４と第２水平リブ５とに形成された切り欠き凹部４ｂ、５ｂに挿入され、雄部材１７が、第１水平リブ４と第２水平リブ５を越えて、外側に、大きく突出しないように構成されている。
【００２１】
上述したようにして、容器本体１に蓋１２が被蓋された状態においては、蓋１２の雄部材１７を構成する板状部１７ａの両端縁１７ｂに形成された一対の回動阻止板部１７ｃが、容器本体１に形成された係合垂直リブ７ａ、７ｂを挟み込むように配置されるので、蓋１２の回動が阻止される。更に、蓋１２に配設された略Ｖ字状の係止部１７ｄ２の両翼部分１７ｄ２”は、容器本体１に形成された雌板部材８の縦長溝１０ｂに挿入される際には、両翼部分１７ｄ２”の外幅ｗ１が、縦長溝１０ｂの幅ｗ２より広く形成されているので、両翼部分１７ｄ２”が接近する方向に弾性変形し、外幅が狭くなった状態で、縦長溝１０ｂに圧入され、その後、両翼部分１７ｄ２”の弾性により、縦長溝１０ｂの幅ｗ２より広い外幅ｗ１に戻るので、容器本体１に形成された雌板部材８の縦長溝１０ｂから、蓋１２の雄部材１７の係止部１７ｄ２が抜け出るようなことはない。また、ペール缶を段積みした際に、上に位置するペール缶の重みにより、下に位置するペール缶の蓋１２の周縁部１４を構成する外側壁１４ｂが外側に膨らんでも、容器本体１に形成された雌板部材８の縦長溝１０ｂから、蓋１２の雄部材１７の係止部１７ｄ２が抜け出るようなことはない。
【００２２】
容器本体１から蓋１２を取り外す際には、先ず最初に、薄肉部１８を、カッターや鋏等の適当な切断具により切断することにより、蓋１２に形成されている雄部材１７を、蓋１２から切り離す。上述したように、略Ｖ字状の係止部１７ｄ２の両翼部分１７ｄ２”の上端の外幅ｗ１は、容器本体１に形成された雌板部材８の嵌合孔１０を構成する横長溝１０ａの幅ｗ３より狭く形成されているとともに、係止部１７ｄ２の厚みｄ１は、雌板部材８に穿設された嵌合孔１０の横長溝１０ａの高さｈ１より薄く形成されているので、蓋１２から切り離された雄部材１７の略Ｖ字状の係止部１７ｄ２は、容器本体１に形成された雌板部材８の嵌合孔１０を構成する横長溝１０ａから取り出すことができる。このようにして、蓋１２から切り離された雄部材１７を、容器本体１の雌板部材８から取り外した後、蓋１２を緩める方向に回動させることにより、蓋１２を、容器本体１から外すことができる。なお、蓋１２の雄部材１７を構成する板状部１７ａの薄肉部１８が位置する中程に、窓部１９を形成することにより、薄肉部１８の切断する部分を短くして、蓋１２から、簡単に、雄部材１７を切り離すことができるように構成することもできる。また、このような窓部１９を形成することにより、ヒンジとして機能する、円周方向に沿った薄肉部１８の折り曲げが容易になる。
【００２３】
上述したように、容器本体１から蓋１２を取り外すには、必ず、薄肉部１８を、カッターや鋏等の適当な切断具により切断しなければならないので、ロック機構として機能する容器本体１の雌板部材８と蓋１２の雄部材１７とが、同時に、容器本体に対して蓋を封印する封印機構としても機能する。従って、従来のペール缶のように、別体のロック機構と封印機構とを設ける必要がなく、ペール缶の構造が簡素化されるとともに、容器本体１への蓋１２の被蓋作業の作業性が向上する。
【００２４】
図１３及び図１４に示されている実施例は、容器本体１のフランジ３の上面３ａに、放射方向に延在する凸部３ｂを、周方向に、所定の間隔で、突設したものである。ペール缶に収容される物質によって、化学反応によりガスが発生したり、或いは、収容された液体が揮発することにより、ガスが発生することがある。このような場合、ペール缶の気密状態が高いと、発生したガスにより、容器本体１の胴部が膨らんだり、蓋１２の水平円板部１３が上方に膨らんだりすることになる。本実施例においては、フランジ３の上面３ａに、凸部３ｂが形成されているので、蓋１２の周縁部１４の天部１４ａの内面に、蓋器本体１のフランジ３の上面３ａが当接しても、蓋１２の周縁部１４の天部１４ａと、蓋器本体１のフランジ３の上面３ａとの間に、ガス抜き通路２０が形成されるので、ペール缶に発生したガスは、蓋器本体１の内壁面１ａと蓋１２の内側壁１４ｃの内周面１４ｃ’との間に形成される間隙、上記のガス抜き通路２０及び蓋器本体１の外壁面１ｂと蓋１２の外側壁１４ｂの内周面１４ｂ’との間に形成される間隙を通って、ペール缶の外に排出されることになる。従って、ペール缶にガスが溜まるようなことがなく、ペール缶の変形を防止することができる。
【００２５】
なお、上述した実施例においては、容器本体１の雌板部材８に穿設した嵌合孔１０を、横長溝部１０ａと縦長溝部１０ｂとにより形成し、蓋１２に配設された雄部材１７の係止部１７ｄ２の両翼部分１７ｄ２”が、接近する方向に弾性変形しながら、上記嵌合孔１０の縦長溝１０ｂに圧入され、容器本体１に形成された雌板部材８と蓋１２に形成された雄部材１７とを、ロック状態で、且つ、封印状態に係止し、そして、このロック状態と封印状態を解除するには、薄肉部１８を切断して、蓋１２に形成されている雄部材１７を、蓋１２から切り離すとともに、蓋１２から切り離された雄部材１７の係止部１７ｄ２を、容器本体１に形成された雌板部材８の嵌合孔１０を構成する横長溝１０ａから取り出すように構成されている。しかしながら、蓋１２と雄部材１７とを連結している薄肉部１８を切断すれば、容器本体１と蓋１２のロック状態と封印状態は解除され、蓋１２を回転させて、ペール缶を開けることができるので、蓋１２から切り離された雄部材１７の係止部１７ｄ２を、容器本体１から取り外す必要がない場合には、嵌合孔１０には、雄部材１７の係止部１７ｄ２の両翼部分１７ｄ２”が圧入される縦長溝部１０ｂだけを形成すればよく、容器本体１の雌板部材８に横長溝１０ａを形成する必要はない。
【００２６】
図１５及び図１６には、容器本体１の雌板部材８に形成された嵌合孔１０と、蓋１２の雄部材１７に形成された係止部１７ｄ２との上述した実施例とは別の実施例が示されている。
【００２７】
この実施例においては、蓋１２に形成された雄部材１７の板状部１７ａの先端付近の中央部下面に短軸１７ｅを垂設し、この短軸１７ｅの先端に、逆さ茸状の係止部１７ｆが形成されており、この短軸１７ｅと逆さ茸状の係止部１７ｆとにより、上述した実施例の係止雄部１７ｄが構成されている。一方、容器本体１の雌板部材８には、上述した横長溝部１０ａと縦長溝部１０ｂとからなる嵌合孔１０に代えて、逆さ茸状の係止部１７ｆの最大外径より小さな円形状の孔１０ｄと、逆さ茸状の係止部１７ｆが挿通可能な逆さ茸状の係止部１７ｆの最大外径より大きな円形状の孔１０ｅとからなる瓢箪状の嵌合孔１０を形成する。そして、上述したと同様に、蓋１２の雄部材１７を、ヒンジとして機能する薄肉部１８を中心に、容器本体１の外周面方向に回動させて、逆さ茸状の係止部１７ｆを、容器本体１の雌板部材８に形成された瓢箪状の嵌合孔１０のうちの小さな円形状の孔１０ｄに、逆さ茸状の係止部１７ｆを弾性変形させながら圧入する。そして、逆さ茸状の係止部１７ｆが、嵌合孔１０の小さな円形状の孔１０ｄに圧入された後は、逆さ茸状の係止部１７ｆが、その弾性により元の形に戻り、雌板部材８に係止されることになる。また、上記のロック状態と封印状態を解除するには、上述したと同様に、薄肉部１８を切断して、蓋１２に形成されている雄部材１７を、蓋１２から切り離すとともに、蓋１２から切り離された雄部材１７の逆さ茸状の係止部１７ｆを、容器本体１の雌板部材８に形成された瓢箪状の嵌合孔１０のうちの大きい円形状の孔１０ｅから取り出す。この実施例の場合も、上述したように、蓋１２から切り離された雄部材１７の係止部１７ｆを、容器本体１から取り外す必要がない場合には、嵌合孔１０には、雄部材１７の逆さ茸状の係止部１７ｆが圧入される小さな円形状の孔１０ｄだけを形成すればよく、容器本体１の雌板部材８に大きい円形状の孔１０ｅを形成する必要はない。なお、この実施例においては、上述した実施例のように、蓋１２に形成された雄部材１７には支持片１７ｄ１が形成されていないので、容器本体１の第２水平リブ５に形成された水平長溝１０ｃを省略することができる。
【００２８】
【発明の効果】
本発明は、以上説明した構成を有しているので、以下に記載する効果を奏するものである。
【００２９】
容器本体に形成された雌板部材には嵌合孔を形成するとともに、蓋に形成された雄部材には係止雄部を形成し、係止雄部を嵌合孔に圧入することにより、係止雄部を雌板部材に係止するようにしたので、従来のペール缶のように、別体のロック機構と封印機構とを設ける必要がなく、従って、ペール缶の構造が簡素化されるとともに、容器本体への蓋の被蓋作業の作業性が向上する。また、ペール缶を段積みした際に、上に位置するペール缶の重みにより、下に位置するペール缶の蓋の周縁部が外側に膨らんでも、容器本体に形成された雌板部材の嵌合孔から、蓋の雄部材の係止雄部が抜け出るようなことはない。
【００３０】
容器本体から蓋を取り外すには、必ず、薄肉部を切断しなければならないので、ロック機構として機能する容器本体の雌板部材と蓋の雄部材とが、同時に、容器本体に対して蓋を封印する封印機構としても機能するとともに、切断箇所を薄肉部としたので、蓋からの雄部材の切り離しが容易である。
【００３１】
雄部材に、容器本体に形成された係合垂直リブを挟み込む一対の回動阻止板部を配設したので、蓋の回動が、確実に阻止され、従って、無理な蓋の回動により、容器本体の雌板部材と蓋の雄部材との係止状態が解除されるようなことが防止できる。
【００３２】
雌板部材に形成された嵌合孔を、係止雄部が圧入される溝部と、係止雄部が通過可能な溝部とにより構成したので、蓋から切り離された雄部材を、容器本体の雌板部材から、簡単に、取り外すことができる。
【００３３】
容器本体の水平リブに、蓋に形成された雄部材の支持片が挿入可能な長溝を形成したので、蓋の回動を、確実に防止することができる。
【００３４】
容器本体のフランジの上面に、放射方向に延在する凸部を、周方向に、所定の間隔で、突設したので、ペール缶にガスが溜まるようなことがなく、ペール缶の変形を防止することができる。
【図面の簡単な説明】
【図１】図１は本発明のペール缶を構成する容器本体と蓋の分解斜視図である。
【図２】図２は本発明のペール缶の分解斜視図である。
【図３】図３は本発明のペール缶を構成する容器本体の雌板部材等の部分斜視図である。
【図４】図４は本発明のペール缶を構成する蓋の雄部材等の部分斜視図である。
【図５】図５は本発明のペール缶を構成する容器本体の雌板部材と蓋の雄部材とが係止される前の状態を示す部分斜視図である。
【図６】図６は本発明のペール缶を構成する容器本体の雌板部材と蓋の雄部材とが係止される前の状態を示す部分垂直断面図である。
【図７】図７は本発明のペール缶を構成する容器本体の雌板部材と蓋の雄部材とが係止された状態を示す部分垂直断面図である。
【図８】図８は本発明のペール缶を構成する容器本体の雌板部材と蓋の雄部材とが係止される前の状態を示す部分水平断面図である。
【図９】図９は本発明のペール缶を構成する容器本体の雌板部材と蓋の雄部材とが係止され過程の状態を示す部分水平断面図である。
【図１０】図１０は本発明のペール缶を構成する容器本体の雌板部材と蓋の雄部材とが係止された状態を示す部分水平断面図である。
【図１１】図１１は本発明のペール缶を構成する容器本体の雌板部材と蓋の雄部材とが係止された状態から雄部材が切り離された状態を示す部分垂直断面図である。
【図１２】図１２は本発明のペール缶を構成する容器本体の雌板部材と蓋の雄部材とが係止された状態から雄部材が切り離された状態を示す部分正面図である。
【図１３】図１３は本発明のペール缶を構成する別の実施例の容器本体の斜視図である。
【図１４】図１４は図１３に示されている容器本体の雌板部材と蓋の雄部材とが係止された状態を示す部分垂直断面図である。
【図１５】図１５は本発明のペール缶を構成する容器本体の別の実施例の雌板部材等の部分斜視図である。
【図１６】図１６は本発明のペール缶を構成する蓋の別の実施例の雄部材等の部分斜視図である。
【符号の説明】
１・・・・・・・・・・容器本体
３・・・・・・・・・・フランジ
３ｂ・・・・・・・・・凸部
７・・・・・・・・・・係合垂直リブ
８・・・・・・・・・・雌板部材
１０・・・・・・・・・嵌合孔
１２・・・・・・・・・蓋
１７・・・・・・・・・雄部材
１８・・・・・・・・・薄肉部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pail can composed of a bucket-shaped container body and a lid that can accommodate various articles such as powder and liquid.
[0002]
[Prior art]
As a conventional pail can, a lock mechanism that locks the lid with respect to the container main body so as not to rotate in a direction in which the lid is detached with respect to the container main body, after the lid is screwed into the container main body and covered. It is known that a sealing mechanism for sealing a container main body so that the cover is not removed without permission after being covered is separately provided.
[0003]
[Problems to be solved by the invention]
In the conventional pail can described above, the lock mechanism for locking the lid with respect to the container body and the sealing mechanism for sealing the lid with respect to the container body are provided separately, and the lid is locked by the lock mechanism. After that, since the lid is sealed by the sealing mechanism, there is a problem that it takes time to store the articles in the pail can. On the contrary, when taking out the article from the pail can, the sealing mechanism must be released and then the lock mechanism must be released, and there is a problem that it takes time to take out the article from the pail can. .
[0004]
Further, in the above-described conventional pail can, the lock mechanism for locking the lid with respect to the container body and the sealing mechanism for sealing the lid with respect to the container body are separately provided. There is a problem that the structure becomes complicated, and thus the manufacturing cost of the pail can increases.
[0005]
Further, when pail cans containing articles are stacked, the side walls of the lid of the lower pail can bulge outward due to the weight of the upper pail can, and the lock mechanism for locking the lid with respect to the container body is released. There was a problem.
[0006]
An object of the present invention is to solve the problems of the above-described conventional pail can.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a synthetic resin pail can composed of a container body and a lid. First , a flange is formed on the outer peripheral surface of the container body , below the flange. A first horizontal rib, a second horizontal rib formed below the first horizontal rib, and a rib with a peripheral wall formed below the second horizontal rib are formed, and a circumference in the vicinity of the opening of the container body is formed. A screw-shaped convex portion is formed in the outer peripheral surface region of a quarter of the direction, and the first horizontal rib and the first horizontal rib are formed in the notch concave portions formed in the first horizontal rib and the second horizontal rib. 2 An engaging vertical rib that connects the horizontal ribs is formed. Further, by extending the peripheral wall portion of the rib with the peripheral wall upward, the engaging vertical rib includes a horizontally long groove portion and a vertically long groove. A female plate member comprising a fitting groove is formed, and the female plate portion is also formed. Is formed with a side wall that connects the second horizontal rib and the rib with the peripheral wall toward the outer peripheral surface of the container main body, while the lid has a substantially inverted U to which the upper end of the container main body can be fitted. A screw-shaped concave portion is formed on the inner wall surface of the peripheral portion, and a screw-shaped convex portion is fitted into the peripheral wall portion, and the peripheral portion constituting the lid via the thin-walled portion. The plate-like portion connected to the outer wall of the portion includes a pair of rotation prevention plate portions formed at opposite end edges of the plate-like portion and a locking male portion press-fitted into the female plate member of the container body. In a state where the lid is formed on the container main body, the container main body 1 is formed with a pair of rotation prevention plate portions formed at both end edges of the plate-like portion constituting the male member of the lid. When the lid is removed from the container body, the thin wall portion is cut. Are those configured as, in the second, on the upper surface of the container body flange, a protruding portion extending in a radial direction, the circumferential direction at predetermined intervals, is obtained by projecting.
[0008]
【Example】
Examples of the present invention will be described below. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.
[0009]
1 is a container main body that constitutes a bucket-shaped pail can, and a screw-shaped convex portion formed of double ribs 2a and 2b is formed on the outer peripheral surface area of a quarter of the circumference in the vicinity of the opening of the container main body 1 2 is formed, and the screw-like convex part 2 is configured to fit into a screw-like concave part formed in a lid described later. Such a screw-like convex part 2 is also formed in the outer peripheral surface area of the other circumferential quarter. Therefore, in the vicinity of the opening of the container body 1, four screws are provided in the circumferential direction. A convex portion 2 is formed.
[0010]
3 is a flange extending horizontally from the upper end of the container body 1 to the outside, and 4 is surrounding the outer peripheral surface of the container main body 1 immediately below the spiral groove 2c and from the outer peripheral surface. A first horizontal rib projecting horizontally, 5 is formed below the first horizontal rib 4, and so as to surround the outer peripheral surface of the container body 1 and horizontally from the outer peripheral surface. It is the 2nd horizontal rib projected. 6 is a peripheral wall including a horizontal portion 6a surrounding the outer peripheral surface of the container main body 1 and projecting horizontally from the outer peripheral surface, and a peripheral wall portion 6b extending downward from the tip of the horizontal portion 6a. It is a rib attached and is disposed below the second horizontal rib 5. All of the first horizontal rib 4, the second horizontal rib 5, and the rib 6 with the peripheral wall are formed on the outer peripheral surface near the opening of the container body 1. And the distance from the outer peripheral surface of the container main body 1 of the front-end | tip 4a of the 1st horizontal rib 4, the distance from the outer peripheral surface of the container main body 1 of the front-end | tip 5a of the 2nd horizontal rib 5, and the outer periphery of the peripheral wall part 6b of the rib 6 with a peripheral wall The distances of the surface 6b ′ from the outer peripheral surface of the container main body 1 are substantially the same, and the distance of the flange 3 from the outer peripheral surface of the container main body 1 is shorter than the above distance. ing.
[0011]
Reference numerals 7a and 7b denote engagement vertical ribs formed at a predetermined interval for connecting the first horizontal rib 4 and the second horizontal rib 5, and the first horizontal ribs 7a and 7b are located. The rib 4 and the second horizontal rib 5 are formed with cutout recesses 4b and 5b, respectively, and the front end surfaces of the engagement vertical ribs 7a and 7b and the first recesses located in the cutout recess 4b. It is comprised so that it may become substantially flush with the front end surface of the horizontal rib 4. FIG.
[0012]
Reference numeral 8 denotes a plate-like female plate member that connects the tip located in the notch recess 5 b of the second horizontal rib 5 and the peripheral wall portion 6 b of the rib 6 with peripheral wall. The female plate member 8 is formed by extending the peripheral wall portion 6b of the rib 6 with the peripheral wall upward, and is disposed below the engaging vertical ribs 7a and 7b. Further, the female plate member 8 is formed with side walls 9 from both ends of the female plate member 8 toward the outer peripheral surface of the container body 1, and the side walls 9 include the second horizontal rib 5 and the rib 6 with the peripheral wall. Are connected. The lateral width of the female plate member 8 is formed wider than the interval between the engaging vertical ribs 7a and 7b.
[0013]
The female plate member 8 is provided with a fitting groove 10 having a convex front shape, which includes a horizontally long groove portion 10a and a vertically long groove portion 10b extending from the central portion of the horizontally long groove portion 10a to the second horizontal rib 5 above. Further, the second horizontal rib 5 is formed with a horizontal long groove 10 c that extends to the outer peripheral surface of the container body 1 continuously to the vertical groove 10 b of the fitting groove 10. In addition, 11a and 11b are reinforcing vertical ribs formed between the flange and the first horizontal rib 4 and between the first horizontal rib 4 and the second horizontal rib 5, and are predetermined in the circumferential direction. Appropriate numbers are formed at intervals of. The vertical ribs 11a and 11b are covered with the container main body 1, and when the peripheral part of the lid, which will be described later, receives an external force, the peripheral part comes into contact with the vertical ribs 11a and 11b and is deformed further. It also has a function to prevent this.
[0014]
Reference numeral 12 denotes a lid that is covered with the container main body 1, and includes a horizontal disc portion 13 and a substantially inverted U-shaped peripheral portion 14 disposed along the peripheral edge of the horizontal disc portion 13. . An annular concave portion 15 into which the upper end portion of the container body 1 can be fitted is formed in the substantially inverted U-shaped peripheral edge portion 14, and the flange of the container main body 1 is formed on the inner surface of the top portion 14 a of the peripheral edge portion 14. 3 is configured such that the upper surface 3a of the three abuts. Reference numeral 16 denotes a screw-like recess formed on the inner wall surface of the outer wall 14b of the peripheral edge 14 and into which the screw-like convex part 2 made of the double ribs 2a and 2b formed on the container body 1 described above is fitted. In this embodiment, four screw-like recesses 16 are formed corresponding to the four screw-like protrusions 2 formed.
[0015]
A male member 17 is connected to the lower end of the outer wall 14b of the peripheral edge portion 14 constituting the lid 12 via a thin wall portion 18 that functions as a hinge. The male member 17 includes a plate-like portion 17a connected to the outer wall 14b of the peripheral edge portion 14 constituting the lid 12 through the thin-walled portion 18, and a middle portion of the opposite end edges 17b of the plate-like portion 17a. When the plate-like portion 17a is perpendicular to the plate-like portion 17a and the plate-like portion 17a is in a horizontal state, the pair of rotation prevention plate portions 17c extend downward, and the lock mechanism and seal disposed in the above-described conventional pail can And a locking male portion 17d having both functions of the mechanism.
[0016]
The locking male portion 17d includes a plate-like support piece 17d1 suspended from the lower surface of the plate-like portion 17a and a horizontal portion 17d1 ′ extending in the horizontal direction from the lower end of the support piece 17d1 when the plate-like portion 17a is in a horizontal state. And a substantially V-shaped locking portion 17d2, and a side surface of the lower end portion of the substantially V-shaped locking portion 17d2 is attached to the tip of the horizontal portion 17d1 ′. . The substantially V-shaped locking portion 17d2 has a wedge-shaped tip 17d2 ′ and both wing portions 17d2 ″, and the outer width w1 of the upper ends of both wing portions 17d2 ″ is the fit of the female plate member 8 formed on the container body 1. It is formed wider than the width w2 of the vertically long groove 10b constituting the joint hole 10, and narrower than the width w3 of the horizontally long groove 10a. Further, the thickness d1 of the substantially V-shaped locking portion 17d2 is formed to be thinner than the height h1 of the laterally long groove 10a of the fitting hole 10 drilled in the female plate member 8.
[0017]
The container body 1 and the lid 12 described above are integrally formed of synthetic resin.
[0018]
In order to cover the lid 12 having the above-described configuration on the container body 1, when the lid 12 is rotated after the lid 12 is put on the container body 1, the screw-like recess 16 formed in the lid 12. The screw-like convex part 2 composed of the double ribs 2a, 2b of the container body 1 is fitted, the lid 12 is lowered, and the inner surface of the top part 14a of the substantially inverted U-shaped peripheral edge part 14 of the lid 12 is A lid 12 is covered with the container main body 1 in an airtight state in contact with the upper surface 3 a of the flange 3 of the container main body 1. In a state where the container 12 is covered with the lid 12, it is connected to the lower end of the outer wall 14 b of the peripheral edge 14 of the lid 12 through the female plate member 8 formed on the container body 1 and the thin portion 18. Further, the vertical position of the male member 17 is matched.
[0019]
Next, when the male member 17 of the lid 12 is rotated in the direction of the outer peripheral surface of the container body 1 around the thin portion 18 that functions as a hinge, both end edges of the plate-like portion 17a constituting the male member 17 of the lid 12 A pair of rotation prevention plate portions 17 c formed on 17 b are arranged so as to sandwich the engaging vertical ribs 7 a and 7 b formed on the container body 1. Further, the plate-like portion 17a constituting the male member 17 of the lid 12 is attached to the horizontal portion 17d1 ′ of the support piece 17d1 formed on the plate-like portion 17a in the process of rotating from the substantially horizontal state to the substantially vertical state. The wedge-shaped tip 17d2 ′ of the substantially V-shaped locking portion 17d2 is formed in the vertically long groove 10b of the fitting hole 10 of the female plate member 8 formed in the container body 1, as shown in FIG. After that, the male member 17 is further rotated in the direction of the outer peripheral surface of the container main body 1, whereby the substantially V-shaped locking portion 17 d 2 has both wing portions 17 d 2 as shown in FIG. 9. ”Are pressed into the vertically long grooves 10b of the fitting holes 10 while being elastically deformed in the directions approaching each other. A substantially V-shaped locking portion 17d2 constituting the male member 17 of the lid 12 is In the vertically long groove 10b of the fitting hole 10 formed in the plate-like portion 17a constituting the male member 17 After being input, as shown in FIG. 10, both wings portion 17D2 of the substantially V-shaped engaging portion 17D2 "is, by its elasticity, it returns to its original shape. As described above, the outer width w1 of the wing portions 17d2 ″ of the substantially V-shaped locking portion 17d2 is the width w2 of the longitudinal groove 10b that constitutes the fitting hole 10 of the female plate member 8 formed in the container body 1. Since it is formed more widely, the substantially V-shaped locking portion 17d2 press-fitted into the longitudinally long groove 10b of the fitting hole 10 of the female plate member 8 formed in the container body 1 has one wing portion 17d2 ". However, it does not get caught by the female plate member 8 and come out of the vertically long groove 10 b of the fitting hole 10.
[0020]
When the female plate member 8 formed on the container main body 1 and the male member 17 formed on the lid 12 are in the locked state, the support piece 17d1 of the male member 17 has the second horizontal rib. The male member 17 is inserted into the horizontal long groove 10 c and is configured so that the rotation of the male member 17 in the direction of the outer peripheral surface of the container body 1 is not obstructed by the second horizontal rib 5. Further, since the support piece 17d1 of the male member 17 formed on the lid 12 is inserted into the horizontal long groove 10c formed on the second horizontal rib 5 of the container body 1, the lid 12 can be prevented from rotating. Further, in this state, the plate-like portion 17a of the male member 17 is inserted into the cutout recesses 4b and 5b formed in the first horizontal rib 4 and the second horizontal rib 5, and the male member 17 is The horizontal ribs 4 and the second horizontal ribs 5 are not protruded greatly beyond the horizontal ribs 4 and the second horizontal ribs 5.
[0021]
As described above, in the state where the lid 12 is covered with the container body 1, the pair of rotation prevention plate portions 17 c formed on the both end edges 17 b of the plate-like portion 17 a constituting the male member 17 of the lid 12. However, since it arrange | positions so that the engagement vertical rib 7a, 7b formed in the container main body 1 may be inserted | pinched, rotation of the lid | cover 12 is blocked | prevented. Further, when the both wing portions 17d2 ″ of the substantially V-shaped locking portion 17d2 disposed on the lid 12 are inserted into the vertically long groove 10b of the female plate member 8 formed in the container body 1, both wing portions Since the outer width w1 of 17d2 ″ is formed wider than the width w2 of the longitudinal groove 10b, the blades 17d2 ″ are elastically deformed in the approaching direction, and are pressed into the longitudinal groove 10b with the outer width narrowed. Thereafter, the elasticity of both wing portions 17d2 "returns to the outer width w1 wider than the width w2 of the longitudinal groove 10b, so that the male member 17 of the lid 12 is removed from the longitudinal groove 10b of the female plate member 8 formed in the container body 1. The locking portion 17d2 does not come out. Further, when the pail cans are stacked, even if the outer wall 14b constituting the peripheral edge portion 14 of the lower pail can lid 12 bulges outward due to the weight of the upper pail can, The engaging portion 17d2 of the male member 17 of the lid 12 does not come out of the vertically long groove 10b of the formed female plate member 8.
[0022]
When removing the lid 12 from the container main body 1, first, the thin member 18 is cut with an appropriate cutting tool such as a cutter or a scissors so that the male member 17 formed on the lid 12 is replaced with the lid 12. Disconnect from. As described above, the outer width w1 of the upper end of both wing portions 17d2 ″ of the substantially V-shaped locking portion 17d2 is the width of the horizontally long groove 10a that forms the fitting hole 10 of the female plate member 8 formed in the container body 1. Since it is formed narrower than the width w3, the thickness d1 of the locking portion 17d2 is formed thinner than the height h1 of the laterally long groove 10a of the fitting hole 10 formed in the female plate member 8, so that the lid 12 The substantially V-shaped latching portion 17d2 of the male member 17 separated from the male member 17 can be taken out from the laterally long groove 10a that constitutes the fitting hole 10 of the female plate member 8 formed in the container main body 1. Then, after removing the male member 17 separated from the lid 12 from the female plate member 8 of the container body 1, the lid 12 can be removed from the container body 1 by rotating the lid 12 in the loosening direction. In addition, plate shape which constitutes the male member 17 of the lid 12 By forming the window portion 19 in the middle where the thin portion 18 of 17a is located, the portion to be cut of the thin portion 18 can be shortened so that the male member 17 can be easily separated from the lid 12. In addition, by forming such a window portion 19, it is easy to bend the thin portion 18 along the circumferential direction that functions as a hinge.
[0023]
As described above, in order to remove the lid 12 from the container body 1, the thin portion 18 must be cut with an appropriate cutting tool such as a cutter or a scissors. The plate member 8 and the male member 17 of the lid 12 simultaneously function as a sealing mechanism that seals the lid against the container body. Therefore, unlike the conventional pail can, it is not necessary to provide a separate locking mechanism and sealing mechanism, the structure of the pail can is simplified, and the workability of the cover work of the lid 12 on the container body 1 is simplified. Will improve.
[0024]
In the embodiment shown in FIGS. 13 and 14, convex portions 3 b extending in the radial direction are provided on the upper surface 3 a of the flange 3 of the container body 1 in the circumferential direction at predetermined intervals. is there. Depending on the substance accommodated in the pail can, gas may be generated by a chemical reaction, or gas may be generated by volatilization of the accommodated liquid. In such a case, if the airtight state of the pail can is high, the generated gas causes the body portion of the container body 1 to swell and the horizontal disk portion 13 of the lid 12 to swell upward. In this embodiment, since the convex portion 3 b is formed on the upper surface 3 a of the flange 3, the upper surface 3 a of the flange 3 of the lid body 1 contacts the inner surface of the top portion 14 a of the peripheral portion 14 of the lid 12. However, since the gas vent passage 20 is formed between the top part 14a of the peripheral part 14 of the lid 12 and the upper surface 3a of the flange 3 of the lid body 1, the gas generated in the pail can is The gap formed between the inner wall surface 1a of the main body 1 and the inner peripheral surface 14c 'of the inner wall 14c of the lid 12, the gas vent passage 20 and the outer wall surface 1b of the lid body 1 and the outer wall 14b of the lid 12. Through the gap formed between the inner peripheral surface 14b 'and the outer peripheral surface 14b'. Therefore, gas does not accumulate in the pail can, and deformation of the pail can can be prevented.
[0025]
In the embodiment described above, the fitting hole 10 formed in the female plate member 8 of the container main body 1 is formed by the horizontally long groove portion 10a and the vertically long groove portion 10b, and the male member 17 disposed on the lid 12 is formed. Both wing portions 17d2 ″ of the locking portion 17d2 are press-fitted into the longitudinal groove 10b of the fitting hole 10 while being elastically deformed in the approaching direction, and formed on the female plate member 8 and the lid 12 formed in the container body 1. To lock the male member 17 in the locked state and in the sealed state, and to release the locked state and the sealed state, the thin portion 18 is cut and the male formed on the lid 12 is cut. The member 17 is separated from the lid 12, and the locking portion 17 d 2 of the male member 17 separated from the lid 12 is taken out from the laterally long groove 10 a constituting the fitting hole 10 of the female plate member 8 formed in the container body 1. It is structured like that, but If the thin portion 18 connecting the lid 12 and the male member 17 is cut, the locked state and the sealed state of the container body 1 and the lid 12 are released, and the lid 12 can be rotated to open the pail can. Therefore, when it is not necessary to remove the locking portion 17d2 of the male member 17 separated from the lid 12 from the container body 1, the wing portions 17d2 of the locking portion 17d2 of the male member 17 are provided in the fitting hole 10. It is only necessary to form the vertically long groove portion 10b into which "" is press-fitted, and it is not necessary to form the horizontally long groove 10a in the female plate member 8 of the container body 1.
[0026]
15 and 16 are different from the above-described embodiment of the fitting hole 10 formed in the female plate member 8 of the container body 1 and the locking portion 17d2 formed in the male member 17 of the lid 12. Examples are shown.
[0027]
In this embodiment, a short shaft 17e is suspended from the lower surface of the central portion in the vicinity of the tip of the plate-like portion 17a of the male member 17 formed on the lid 12, and an inverted hook-like locking is provided at the tip of the short shaft 17e. A portion 17f is formed, and the short male shaft 17e and the inverted hook-shaped locking portion 17f constitute the locking male portion 17d of the above-described embodiment. On the other hand, the female plate member 8 of the container body 1 has a circular shape smaller than the maximum outer diameter of the inverted hook-shaped locking portion 17f instead of the fitting hole 10 composed of the above-described horizontally long groove portion 10a and the vertically long groove portion 10b. A hook-shaped fitting hole 10 is formed which includes a hole 10d and a circular hole 10e larger than the maximum outer diameter of the inverted hook-shaped locking part 17f through which the inverted hook-shaped locking part 17f can be inserted. Then, as described above, the male member 17 of the lid 12 is rotated in the direction of the outer peripheral surface of the container body 1 around the thin-walled portion 18 that functions as a hinge. The inverted hook-shaped locking portion 17 f is press-fitted into the small circular hole 10 d of the hook-shaped fitting holes 10 formed in the female plate member 8 of the container body 1 while being elastically deformed. After the inverted hook-shaped locking portion 17f is press-fitted into the small circular hole 10d of the fitting hole 10, the inverted hook-shaped locking portion 17f returns to its original shape due to its elasticity, and the female The plate member 8 is locked. Further, in order to release the locked state and the sealed state, as described above, the thin portion 18 is cut to separate the male member 17 formed on the lid 12 from the lid 12 and from the lid 12. An upside down hook-shaped locking portion 17 f of the separated male member 17 is taken out from a large circular hole 10 e of the hook-shaped fitting holes 10 formed in the female plate member 8 of the container body 1. Also in this embodiment, as described above, when it is not necessary to remove the locking portion 17f of the male member 17 separated from the lid 12 from the container body 1, the male member 17 is provided in the fitting hole 10. Only the small circular hole 10d into which the inverted hook-shaped locking part 17f is press-fitted is formed, and it is not necessary to form the large circular hole 10e in the female plate member 8 of the container body 1. In this embodiment, since the support piece 17d1 is not formed on the male member 17 formed on the lid 12 as in the above-described embodiment, it is formed on the second horizontal rib 5 of the container body 1. The horizontal long groove 10c can be omitted.
[0028]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be achieved.
[0029]
The female plate member formed on the container body is formed with a fitting hole, the male member formed on the lid is formed with a locking male part, and the locking male part is press-fitted into the fitting hole, thereby Since the part is locked to the female plate member, there is no need to provide a separate locking mechanism and sealing mechanism as in the conventional pail can, and thus the structure of the pail can is simplified, The workability of the lid covering work on the container body is improved. In addition, when the pail cans are stacked, even if the peripheral edge of the lid of the lower pail can bulge outward due to the weight of the upper pail can, the female plate member formed on the container body is fitted. The locking male part of the male member of the lid does not come out from the hole.
[0030]
To remove the lid from the container body, the thin part must be cut, so the female plate member of the container body and the male member of the lid that function as a locking mechanism seal the lid against the container body at the same time. In addition to functioning as a sealing mechanism, the male member from the lid can be easily separated because the cut portion is a thin portion.
[0031]
Since the male member is provided with a pair of rotation prevention plate portions that sandwich the engaging vertical rib formed on the container body, the rotation of the lid is reliably prevented, and therefore, by the excessive rotation of the lid, It is possible to prevent the locked state between the female plate member of the container body and the male member of the lid from being released.
[0032]
Since the fitting hole formed in the female plate member is constituted by the groove portion into which the locking male portion is press-fitted and the groove portion through which the locking male portion can pass, the male member separated from the lid is used as the female plate of the container body. It can be easily removed from the member.
[0033]
Since the long groove into which the support piece of the male member formed on the lid can be inserted is formed in the horizontal rib of the container body, the rotation of the lid can be surely prevented.
[0034]
Protrusions extending in the radial direction are projected on the upper surface of the flange of the container body at predetermined intervals in the circumferential direction, preventing gas from accumulating in the pail can and preventing deformation of the pail can can do.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a container body and a lid constituting a pail can of the present invention.
FIG. 2 is an exploded perspective view of a pail can according to the present invention.
FIG. 3 is a partial perspective view of a female plate member and the like of a container body constituting the pail can of the present invention.
FIG. 4 is a partial perspective view of a male member and the like of a lid constituting the pail can of the present invention.
FIG. 5 is a partial perspective view showing a state before the female plate member of the container main body and the male member of the lid constituting the pail can of the present invention are locked.
FIG. 6 is a partial vertical sectional view showing a state before the female plate member of the container main body and the male member of the lid constituting the pail can of the present invention are locked.
FIG. 7 is a partial vertical sectional view showing a state in which the female plate member of the container body and the male member of the lid constituting the pail can of the present invention are locked.
FIG. 8 is a partial horizontal sectional view showing a state before the female plate member of the container main body and the male member of the lid constituting the pail can of the present invention are locked.
FIG. 9 is a partial horizontal sectional view showing a state in which the female plate member of the container main body and the male member of the lid constituting the pail can of the present invention are locked.
FIG. 10 is a partial horizontal sectional view showing a state in which a female plate member of a container main body and a male member of a lid constituting the pail can of the present invention are locked.
FIG. 11 is a partial vertical sectional view showing a state in which the male member is separated from the state in which the female plate member of the container main body and the male member of the lid constituting the pail can of the present invention are locked.
FIG. 12 is a partial front view showing a state in which the male member is separated from the state in which the female plate member of the container main body and the male member of the lid constituting the pail can of the present invention are locked.
FIG. 13 is a perspective view of a container body of another embodiment constituting the pail can of the present invention.
14 is a partial vertical cross-sectional view showing a state in which the female plate member of the container main body and the male member of the lid shown in FIG. 13 are locked. FIG.
FIG. 15 is a partial perspective view of a female plate member and the like of another embodiment of the container main body constituting the pail can of the present invention.
FIG. 16 is a partial perspective view of a male member or the like of another embodiment of a lid constituting the pail can of the present invention.
[Explanation of symbols]
1 ... Container body 3 ... Flange 3b ... Projection 7 ... Engagement Vertical rib 8 ... Female plate member 10 ... Fitting hole 12 ... Lid 17 ... Male member 18 ... Thin section

Claims

In a synthetic resin pail can comprising a container main body and a lid , a flange, a first horizontal rib formed below the flange, and a second horizontal rib formed below the first horizontal rib on the outer peripheral surface of the container main body . A rib with a peripheral wall formed below the horizontal rib and the second horizontal rib is formed, and a screw-like convex portion is formed on the outer peripheral surface region in the circumferential direction near the opening of the container body. In addition, an engagement vertical rib that connects the first horizontal rib and the second horizontal rib is formed in the notch recess formed in the first horizontal rib and the second horizontal rib. By extending the peripheral wall portion of the rib with the peripheral wall upward, a female plate member comprising a fitting groove comprising a laterally long groove portion and a vertically long groove is formed below the engaging vertical rib. The plate member is connected to the second horizontal rib and the rib with the peripheral wall. A side wall directed to the outer peripheral surface of the main body is formed, while a substantially inverted U-shaped peripheral edge portion into which the upper end portion of the container main body can be fitted is formed on the lid, and the inner wall surface of the peripheral edge portion Are formed with a screw-like recess into which the screw-like convex part is fitted, and the plate-like part connected to the outer wall of the peripheral part constituting the lid via the thin-walled part has a plate-like part. A pair of rotation prevention plate portions formed at opposite edges of the container and a locking male portion press-fitted into the female plate member of the container main body, and in a state where the lid is covered on the container main body The pair of rotation prevention plate portions formed at both end edges of the plate-like portion constituting the male member of the lid are arranged so as to sandwich the engaging vertical rib formed on the container body 1, and the container body when removing the lid from the synthetic resin, characterized in that it is configured to thin portions, so as to cut Bae Cans.

2. The synthetic resin pail can according to claim 1, wherein convex portions extending in a radial direction project from the upper surface of the flange of the container main body at a predetermined interval in the circumferential direction .