JP4585089B2

JP4585089B2 - Folding container loading structure

Info

Publication number: JP4585089B2
Application number: JP2000180092A
Authority: JP
Inventors: 哲也村上; 英俊山口
Original assignee: Gifu Plastic Industry Co Ltd
Current assignee: Gifu Plastic Industry Co Ltd
Priority date: 2000-06-15
Filing date: 2000-06-15
Publication date: 2010-11-24
Anticipated expiration: 2020-06-15
Also published as: JP2002002696A

Description

【０００１】
【発明の属する技術分野】
本発明は、大型の折り畳みコンテナと小型の折り畳みコンテナとを積載する折り畳みコンテナの積載構造に関するものである。
【０００２】
【従来の技術】
従来から、矩形状の底板の対向する一対の辺にそれぞれ回動自在に取付けた一対の第１の側板と、対向する他の一対の辺に回動自在に取付けた一対の第２の側板とを、一対の第１の側板を倒した上に一対の第２の側板を倒した状態で折り畳み且つ一対の第２の側板を起立させた後に一対の第１の側板を起立させて箱形状に組み立てる折り畳みコンテナが知られている。この折り畳みコンテナは空の状態で保管したり、運搬したりする場合には、折り畳みコンテナを折り畳んで嵩を低くした状態で複数積み重ねて保管したり、あるいは運搬したりするようになっている。
【０００３】
ところで、上記の折り畳みコンテナは、底板の大きさの異なるものが複数種類あり、これら底板の大きさが異なるものを折り畳んで保管したり、運搬したりする場合、底板の大きさが同じ大きさの折り畳みコンテナ同士を折り畳んだ状態で上下に複数積み重ねて保管したり、あるいは運搬したりしており、このため、底板の大きさの異なる折り畳みコンテナを仕分けしてそれぞれ別々に上下に重ねる必要があり、流通コストが高くなるという問題があった。
【０００４】
なお、従来において、折り畳み状態の大型の折り畳みコンテナの上に折り畳み状態の小型の折り畳みコンテナを載置しようとした場合、大型の折り畳みコンテナの上の折り畳み状態の側板に小型の折り畳みコンテナが載置されてしまい、載置が不安定で上下に高く積み重ねることができず、しかも側板が損傷しやすく、これらの理由により底板の大きさの異なる折り畳みコンテナを上下に混載することはできなかった。
【０００５】
【発明が解決しようとする課題】
本発明は上記の問題点に鑑みて発明したものであり、底板の大きさの異なる大型の折り畳みコンテナと小型の折り畳みコンテナとを安定して混載でき、また、底板の大きさの異なる大型の折り畳みコンテナと小型の折り畳みコンテナとを側板が損傷しないように混載できる折り畳みコンテナの積載構造を提供することを課題とするものである。
【０００６】
【課題を解決するための手段】
上記課題を達成するため本発明の折り畳みコンテナの積載構造は、長方形状の大底板１Ａの対向する長辺にそれぞれ回動自在に取付けた長辺側の側板２Ａと、対向する短辺にそれぞれ回動自在に取付けた短辺側の側板２Ｂとを、長辺側の一対の側板２Ａ又は短辺側の一対の側板２Ｂのいずれか一方側を先に倒した後にその上に他方側を倒した状態で折り畳み且つ他方側を起立させた後に一方側を起立させて箱形状に組み立てる大型の折り畳みコンテナ３Ａを形成し、矩形状の小底板１ａの対向する一対の辺にそれぞれ回動自在に取付けた一対の第１の側板２ａと、対向する他の一対の辺に回動自在に取付けた一対の第２の側板２ｂとを、一対の第１の側板２ａを倒した上に一対の第２の側板２ｂを倒した状態で折り畳み且つ一対の第２の側板２ｂを起立させた後に一対の第１の側板２ａを起立させて箱形状に組み立てる小型の折り畳みコンテナ３ａを形成し、小型の折り畳みコンテナ３ａの小底板１ａの一辺を大型の大底板１Ａの短辺と同一長さとするとともに小底板１ａの他辺を大底板１Ａの長辺の１／Ｎとし、Ｎは２以上の整数、大型の折り畳みコンテナ３Ａの大底板１Ａの少なくとも四隅部分及び長辺の両端間に上方に向けて支持突部４Ａを突設し、上記小底板１ａの下面部の少なくとも四隅部分に係合部５ａを設け、大底板１Ａの支持突部４Ａに被係合部６Ａを設け、折り畳み状態の大型の折り畳みコンテナ３Ａの上面に複数の小型の折り畳みコンテナ３ａを載置すると共に大底板１Ａの少なくとも四隅部分及び長辺の両端間に突設した支持突部４Ａに複数の小型の折り畳みコンテナ３ａの各小底板１ａの少なくとも四隅部分を載設支持し且つ係合部５ａを被係合部６Ａに係合して成ることを特徴とするものである。このような構成とすることで、折り畳んだ大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａを積み重ねるとともに複数の各小型の折り畳みコンテナ３ａの小底板１ａの四隅部分をそれぞれ大型の折り畳みコンテナの支持突部４Ａで支持し且つ係合部５ａを被係合部６Ａに係合することで、大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａを並べて載置した場合に、複数の小型の折り畳みコンテナ３ａがずれないように積載できて、安定して支持して混載ができるものである。
【０００７】
ここで、大底板１Ａの長辺の両端間に突設した支持突部４Ａの外側にリブを設けることが好ましい。
【０００８】
また、支持突部４Ａの上端部を大型の折り畳みコンテナ３Ａの折り畳み状態における上段の側板よりも上方に突出するので、大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａを載置するに当たって、大型の折り畳みコンテナ３Ａの折り畳んだ状態で上段となっている側板に複数の小型の折り畳みコンテナ３ａの荷重がかからないようにでき、また、折り畳んだ状態における大型の折り畳みコンテナ３Ａの上に別の載置物を載置した場合にも大底板１Ａの少なくとも四隅部分及び長辺に上方に向けて支持突部４Ａにより支持して側板に荷重がかからないようにできるものである。
【０００９】
また、小型の折り畳みコンテナ３ａの小底板の少なくとも四隅部分に支持突出部４ａを突設し、折り畳み状態の小型の折り畳みコンテナ３ａを複数枚平面視で大型の折り畳みコンテナ３Ａと重なるように並べ、該並設した複数の小型の折り畳みコンテナ３ａの上に大型の折り畳みコンテナ３Ａを載置すると共に並設した複数の小型の折り畳みコンテナ３ａの小底板１ａの少なくとも四隅に突設した支持突出部４ａに大型の折り畳みコンテナ３Ａの大底板１Ａを載設支持することが好ましい。このような構成とすることで、小型の折り畳みコンテナ３ａを複数並設した上に大型の折り畳みコンテナ３Ａを載置でき、この場合、大型の折り畳みコンテナ３Ａの大底板１Ａからの荷重を複数の小型の折り畳みコンテナ３ａの四隅に突出した支持突出部４ａに載置して安定して支持できるものである。したがって、大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａを載置し、更に複数の並設した小型の折り畳みコンテナ３ａの上に大型の折り畳みコンテナ３Ａを載置するというように、大型の折り畳みコンテナ３Ａと並設した複数の小型の折り畳みコンテナ３ａとを交互に積み重ねるというような混載が可能となるものである。
【００１０】
また、大底板１Ａの下面部の少なくとも四隅部分及び長辺間に係止部５Ａを設け、支持突出部４ａに被係止部６ａを設け、係止部５Ａを被係止部６ａに係止することが好ましい。このような構成とすることで、複数の並設した小型の折り畳みコンテナ３ａの上に大型の折り畳みコンテナ３Ａを載置した際に、大型の折り畳みコンテナ３Ａがずれないように積載できるものである。
【００１１】
また、大型の折り畳みコンテナ３Ａの長辺側の側板２Ａの上面部に上方に向けて突出するずれ防止突起７を設け、小型の折り畳みコンテナ３ａの小底板１ａの端部に組み立て状態の大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａを並べて載置した際にずれ防止用突起７に嵌め込むための嵌め込み凹部８を形成することが好ましい。このような構成とすることで、箱状に組み立てた状態の大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａがずれないように載置できるとともに、積載状態で大型の折り畳みコンテナ３Ａの長辺側の側板２Ａが外に開くのを防止することができるものである。
【００１２】
【発明の実施の形態】
以下本発明の実施形態につき説明する。
【００１３】
本発明に使用する大型の折り畳みコンテナ３Ａは、図８乃至図１３に示すようなもので、長方形状の大底板１Ａの対向する長辺にそれぞれ長辺側の側板２Ａを回動自在に取付け、対向する短辺にそれぞれ短辺側の側板２Ｂを回動自在に取付け、長辺側の一対の側板２Ａ又は短辺側の一対の側板２Ｂのいずれか一方側を先に倒した後にその上に他方側を倒した状態で折り畳み且つ他方側を起立させた後に一方側を起立させて箱形状に組み立てるように構成してある。添付図面に示す実施形態では長辺側の一対の側板２Ａを倒した後に短辺側の一対の側板２Ｂをその上に倒すことで折り畳み、短辺側の一対の側板２Ｂを起立させた後に長辺側の一対の側板２Ａを起立させることで箱状に組み立てるようになっている。もちろん、短辺側の一対の側板２Ｂを倒した後に長辺側の一対の側板２Ａをその上に倒すことで折り畳み、長辺側の一対の側板２Ａを起立させた後に短辺側の一対の側板２Ｂを起立させることで箱状に組み立てるようなものであってもよい。
【００１４】
長方形状の大底板１Ａの四隅部と長辺の両端間には上方に向けて支持突部４Ａが突設してある。添付図面に示す実施形態においては大型の折り畳みコンテナ３Ａの上に小型の折り畳みコンテナ３ａを２つ載設する例を示しているので、この場合には長方形状の大底板１Ａの長辺の両端間を２等分する位置に支持突部４Ａを設けるものであり、大型の折り畳みコンテナ３Ａの上に小型の折り畳みコンテナ３ａを３つ載設する場合には長方形状の大底板１Ａの長辺の両端間を３等分する位置に支持突起４Ａを設けるものである。同様に大型の折り畳みコンテナ３Ａの上に小型の折り畳みコンテナ３ａを４つ載設する場合には長方形状の大底板１Ａの長辺の両端間を４等分する位置に支持突起４Ａを設けるものである。
【００１５】
この支持突部４Ａの上端は図８に示すように大型の折り畳みコンテナ３Ａを折り畳んだ状態で上段の側板（図８においては短辺側の側板２Ｂ）よりも上に突出している。また、支持突部４Ａのうち大底板１Ａの四隅部に位置する支持突部４Ａ_１は上端部に平面視Ｌ字状をした凹み溝６Ａ_１が形成してあってこの凹み溝６Ａ_１が被係合部６Ａとなっており、また、支持突部４Ａのうち大底板１Ａの長辺に突設した支持突部４Ａ_２は上端部両側にそれぞれ凹み溝６Ａ_２が形成してあってこの凹み溝６Ａ_２が被係合部６Ａとなっている。
【００１６】
図１３に示すように長方形状の大底板１Ａの下面部には周囲部に周段部１０Ａが形成してあり、更に、大底板１Ａの下面部の対向する両短辺間に短辺と平行に中段部１１が形成してあり（添付図面に示す実施形態では両短辺の中間部分に１つの中段部１１が形成してあり）、周段部１０Ａと中段部１１とは同一レベルとなっており、また、中段部１１の幅は周段部１０Ａの幅の２倍の幅となっている。そして、大底板１Ａの下面部の周段部１０Ａに囲まれた部分が下方に突出した突出底部１３Ａとなっており、この突出底部１３Ａは中段部１１により長手方向に複数に分離してあり、複数に分離された突出底部１３Ａの各４隅部が係止部５Ａを構成している。
【００１７】
折り畳んだ状態の大型の折り畳みコンテナ３Ａ同士を上下に重ねた場合、下段の大型の折り畳みコンテナ３Ａの四隅部と長辺には上方に向けて支持突部４Ａの上面に上段の大型の折り畳みコンテナ３Ａの大底板１Ａの底面部の周段部１０Ａの四隅部と中段部１１の短辺方向の両端部とがそれぞれ載置されると共に、複数に分割された突出底部１３Ａの各４隅部の係止部５Ａがそれぞれ被係合部６Ａを構成する凹み溝６Ａ_１、凹み溝６Ａ_２に係止して横ずれを防止している。
【００１８】
大型の折り畳みコンテナ３Ａの一対の長辺側の側板２Ａと一対の短辺側の側板２Ｂとを起立させて箱状に組み立てた状態で、隣接する長辺側の側板２Ａの端部と短辺側の側板２Ｂの端部とは任意の接合手段により係脱自在に連結されて箱状に組み立てた状態を保持することができるようになっている。また、長辺側の側板２Ａの上面部には長手方向の複数区域に上方に向けてずれ防止用突起７が突設してある（図１１の実施形態では長辺側の側板２Ａの上面部の長手方向の２区域に上方に向けてずれ防止用突起７が突設してある）。
【００１９】
小型の折り畳みコンテナ３ａは、矩形状の小底板１ａの対向する一対の辺にそれぞれ一対の第１の側板２ａを回動自在に取付け、対向する他の一対の辺に一対の第２の側板２ｂを回動自在に取付け、一対の第１の側板２ａを倒した上に一対の第２の側板２ｂを倒した状態で折り畳み且つ一対の第２の側板２ｂを起立させた後に一対の第１の側板２ａを起立させて箱形状に組み立てるように構成してある。小型の折り畳みコンテナ３ａの一対の第１の側板２ａと一対の第２の側板２ｂとを起立させて箱状に組み立てた状態で、隣接する第１の側板２ａの端部と第２の側板２ｂの端部とは任意の接合手段により係脱自在に連結されて箱状に組み立てた状態を保持することができるようになっている。
【００２０】
ここで、上記小型の折り畳みコンテナ３ａの小底板１ａは一辺が大型の大底板１Ａの短辺と同一長さとなっていると共に小底板１ａの他辺が大底板１Ａの長辺の１／Ｎとなっている。ここでＮは２以上の整数である。添付図面に示す実施形態において、矩形状の小底板１ａが長方形状をしている例であり、小底板１ａの長辺と大底板１Ａの短辺とが同一長さとなっていると共に小底板１ａの短辺が大底板１Ａの１／２（つまりＮが２）となっており、また、第１の側板２ａが長辺側の側板で第２の側板２ｂが短辺側の側板である例で示している。もちろん、矩形状の小底板１ａが正方形であってもよいものであり、また、矩形状の小底板１ａの短辺が大底板１Ａの１／３、１／４……であってもよいものである。
【００２１】
小底板１ａの四隅部分には上方に向けて支持突出部４ａが突設してあり、この支持突出部４ａの上端は小型の折り畳みコンテナ３ａを折り畳んだ状態において上段となる側板よりも上に位置している。また、支持突出部４ａの上面部には平面視Ｌ状をした凹み溝６ａ_１が形成してあって、この平面視Ｌ状をした凹み溝６ａ_１が被係止部６ａを構成している。また小底板１ａの下面部には周段部１０ａが形成してあり、小底板１ａの下面部には周段部１０ａに囲まれた部分が下方に突出した突出底部１３ａとなっており、この突出底部１３ａの四隅部が係合部５ａとなっている。
【００２２】
折り畳んだ状態の小型の折り畳みコンテナ３ａ同士を上下に重ねた場合、下段の小型の折り畳みコンテナ３ａの四隅部に設けた支持突出部４ａの上面に上段の小型の折り畳みコンテナ３ａの小底板１ａの底面部の周段部１０ａの四隅部が載置されると共に、突出底部１３ａの各４隅部の係合部５ａがそれぞれ被係止部６ａを構成する凹み溝６ａ_１に係止して横ずれを防止している。
【００２３】
上記のような構成の大型の折り畳みコンテナ３Ａ、小型の折り畳みコンテナ３ａを用いて、組み立てた状態の大型の折り畳みコンテナ３Ａ及び組み立てた状態の小型の折り畳みコンテナ３ａ内にそれぞれ収納物を収納して搬送したり、収納物を保管したりするのである。そして、収納物を入れない状態では大型の折り畳みコンテナ３Ａ、小型の折り畳みコンテナ３ａをそれぞれ折り畳んで搬送したり、あるいは保管したりするものである。
【００２４】
ここで、大型の折り畳みコンテナ３Ａ、小型の折り畳みコンテナ３ａをそれぞれ折り畳んだ状態で搬送したり、保管したりするに当たり、本発明においては、図１、図２に示すように、折り畳んだ大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａを並べて載置して積み重ねることができるようになっている。すなわち、折り畳み状態の大型の折り畳みコンテナ３Ａの上面に複数の小型の折り畳みコンテナ３ａを載置すると共に大底板１Ａの少なくとも四隅部分及び長辺に突設した支持突部４Ａに複数の小型の折り畳みコンテナ３ａの小底板１ａの少なくとも４隅部分を載設支持するものである。この場合、大型の折り畳みコンテナ３Ａの短辺側に該短辺と同じ長さをした小型の折り畳みコンテナ３ａの一辺が平行となるように小型の折り畳みコンテナ３ａを大型の折り畳みコンテナ３Ａ上に複数並べるものであり、これにより大型の折り畳みコンテナ３Ａと複数の小型の折り畳みコンテナ３ａとが同一大きさに収まって積み重ねられるようになっている。
【００２５】
ここで、図６に示すように複数の小型の折り畳みコンテナ３ａの各小底板１ａの下面部の四隅部分に設けた係合部５ａが、支持突部４Ａの被係合部６Ａに係合するものであって、大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａを並べて載置した場合に、複数の小型の折り畳みコンテナ３ａがずれないように積載できていっそう安定して混載できるようになっている。また、前述のように、支持突部４Ａの上端部が大型の折り畳みコンテナ３Ａの折り畳み状態における上段の側板よりも上方に突出するように構成してあるので、大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａを載置するに当たって、大型の折り畳みコンテナ３Ａの折り畳んだ状態で上段となっている側板に複数の小型の折り畳みコンテナ３ａの荷重がかからないようにできるものであり、また、折り畳んだ状態における大型の折り畳みコンテナ３Ａの上に別の載置物を載置した場合にも大底板１Ａの少なくとも四隅部分及び長辺に上方に向けて支持突部４Ａにより支持して側板に荷重がかからないようにでき、これにより折り畳み状態の側板に荷重がかからずに側板の破損を防止するようになっている。
【００２６】
上記のように、大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａを並べて積載するのであるが、この場合、大型の折り畳みコンテナ３Ａ同士を多段に積載すると共に複数の大型の折り畳みコンテナ３Ａのうち任意の段数目の大型の折り畳みコンテナ３Ａの上に上記のように複数の小型の折り畳みコンテナ３ａを載置して積載してもよく、上記のようにして積載した複数の並設した小型の折り畳みコンテナ３ａの上に複数の小型の折り畳みコンテナ３ａを載設して積載してもよく、あるいは、複数の小型の折り畳みコンテナ３ａを並べた上に大型の折り畳みコンテナ３Ａを積載してもよいものである。
【００２７】
複数の小型の折り畳みコンテナ３ａを並べた上に大型の折り畳みコンテナ３Ａを載置して積載する場合、図６に示すように複数の小型の折り畳みコンテナ３ａの小底板１ａの少なくとも四隅に突設した支持突出部４ａに大型の折り畳みコンテナ３Ａの大底板１Ａが載置され、また、大底板１Ａの下面部の少なくとも四隅部分及び長辺間に設けた係止部５Ａが支持突出部４ａの被係止部６ａに係止するようになっている。これにより複数の並設した小型の折り畳みコンテナ３ａの上に大型の折り畳みコンテナ３Ａを載置した際に、大型の折り畳みコンテナ３Ａがずれないように安定して積載されることになる。
図３、図７には大型の折り畳みコンテナ３Ａと複数の小型の折り畳みコンテナ３ａとの積載の各例を示しているがもちろん上記以外にも種々の積載形態が採用できるものである。
【００２８】
なお、折り畳んだ状態の大型の折り畳みコンテナ３Ａの上に箱状に組み立てた複数の小型の折り畳みコンテナ３ａを積載してもよい。この場合も前述のように折り畳んだ複数の小型の折り畳みコンテナ３ａを大型の折り畳みコンテナ３Ａの上に載設して積載するのと同じ状態で積載されるものである。
【００２９】
また、折り畳んだ状態の複数の小型の折り畳みコンテナ３ａを並設した上に大型の折り畳みコンテナ３Ａを載設してもよい。この場合も前述のように折り畳んだ大型の折り畳みコンテナ３Ａを折り畳んだ複数の小型の折り畳みコンテナ３ａの上に載設して積載するのと同じ状態で積載されるものである。
【００３０】
一方、大型の折り畳みコンテナ３Ａを箱状に組み立て、小型の折り畳みコンテナ３ａを箱状に組み立て、図１９、図２０に示すように箱状に組み立てた大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａを載置するように混載することもできる。この場合、小型の折り畳みコンテナ３ａは小底板１ａの大底板１Ａの短辺と同一長さとなっている辺を大底板１Ａの短辺と平行となるように配置して複数並べて大型の折り畳みコンテナ３Ａ上に載置するものである。そして、図２１に示すように、大型の折り畳みコンテナ３Ａの長辺側の側板２Ａの上面部に上方に向けて突出したずれ防止突起７に、それぞれ各小型の折り畳みコンテナ３ａの小底板１ａの端部に設けた嵌め込み凹部８が嵌め込まれ、これにより箱状に組み立てた状態の大型の折り畳みコンテナ３Ａの上に複数の小型の折り畳みコンテナ３ａがずれないように載置できるとともに、積載状態で大型の折り畳みコンテナ３Ａの長辺側の側板２Ａが外に開くのを防止することができるものである。この場合、各小型の折り畳みコンテナ３ａの底部の突出底部１３ａが大型の折り畳みコンテナ３Ａの上開口部内に嵌り込みむことで、大型の折り畳みコンテナ３Ａの長辺側の側板２Ａ、短辺側の側板２Ｂがそれぞれ内側に倒れるのを防止するとともに複数の小型の折り畳みコンテナ３ａがいっそうずれないようにしている。
【００３１】
ここで、箱状に組み立てた複数の並設した小型の折り畳みコンテナ３ａの上に大型の折り畳みコンテナ３Ａを載置してもよい。この場合、複数の並設した小型の折り畳みコンテナ３ａの上開口縁部に大型の折り畳みコンテナ３Ａの大底板１Ａの下面部の周段部１０Ａ、中段部１１に嵌め込まれ（隣接する折り畳みコンテナ３ａの上開口縁部は中段部１１に嵌め込まれ）、大型の折り畳みコンテナ３Ａがずれないようになっている。
【００３２】
【発明の効果】
本発明の請求項１記載の発明にあっては、上述のように、小型の折り畳みコンテナの小底板の一辺を大型の大底板の短辺と同一長さとするとともに小底板の他辺を大底板の長辺の１／Ｎとし、Ｎは２以上の整数、大型の折り畳みコンテナの大底板の少なくとも四隅部分及び長辺の両端間に上方に向けて支持突部を突設し、上記小底板の下面部の少なくとも四隅部分に係合部を設け、大底板の支持突部に被係合部を設け、折り畳み状態の大型の折り畳みコンテナの上面に複数の小型の折り畳みコンテナを載置すると共に大底板の少なくとも四隅部分及び長辺の両端間に突設した支持突部に複数の小型の折り畳みコンテナの各小底板の少なくとも四隅部分を載設支持し且つ係合部を被係合部に係合するので、折り畳んだ大型の折り畳みコンテナの上に複数の小型の折り畳みコンテナを積み重ねるとともに複数の各小型の折り畳みコンテナの小底板の四隅部分をそれぞれ大型の折り畳みコンテナの支持突部で支持でき、また、係合部を被係合部に係合するので、大型の折り畳みコンテナの上に複数の小型の折り畳みコンテナを並べて載置した場合に、複数の小型の折り畳みコンテナがずれないように積載でき、この結果、大型の折り畳みコンテナと小型の折り畳みコンテナをそれぞれ折り畳んで搬送、保管する際、両者を混載して搬送、保管ができて流通の簡素化がはかれるものである。
【００３３】
また、請求項２記載の発明にあっては、上記のように小型の折り畳みコンテナの小底板の隅部を支持する大底板の長辺の両端間に突設した支持突部の外側にリブを設けたことを特徴としている。
【００３４】
また、請求項３記載の発明にあっては、上記請求項１又は請求項２記載の発明の効果に加えて、支持突部の上端部を大型の折り畳みコンテナの折り畳み状態における上段の側板よりも上方に突出するので、大型の折り畳みコンテナの上に複数の小型の折り畳みコンテナを載置するに当たって、大型の折り畳みコンテナの折り畳んだ状態で上段となっている側板に複数の小型の折り畳みコンテナの荷重がかからないようにでき、また、折り畳んだ状態における大型の折り畳みコンテナの上に別の載置物を載置した場合にも大底板の少なくとも四隅部分及び長辺に上方に向けて支持突部により支持して側板に荷重がかからないようにできるものであって、大型の折り畳みコンテナの側板の破損を防止できるものである。
【００３５】
また、請求項４記載の発明にあっては、上記請求項１記載の発明の効果に加えて、小型の折り畳みコンテナの小底板の少なくとも四隅部分に支持突出部を突設し、折り畳み状態の小型の折り畳みコンテナを複数枚平面視で大型の折り畳みコンテナと重なるように並べ、該並設した複数の小型の折り畳みコンテナの上に大型の折り畳みコンテナを載置すると共に並設した複数の小型の折り畳みコンテナの小底板の少なくとも四隅に突設した支持突出部に大型の折り畳みコンテナの大底板を載設支持するので、小型の折り畳みコンテナを複数並設した上に大型の折り畳みコンテナを載置でき、この場合、大型の折り畳みコンテナの大底板からの荷重を複数の小型の折り畳みコンテナの四隅に突出した支持突出部に載置して安定して支持できるものであり、したがって、大型の折り畳みコンテナの上に複数の小型の折り畳みコンテナを載置し、更に複数の並設した小型の折り畳みコンテナの上に大型の折り畳みコンテナを載置するというように、大型の折り畳みコンテナと並設した複数の小型の折り畳みコンテナとを交互に積み重ねるというような混載が可能となっていっそう効率よく大型の折り畳みコンテナと小型の折り畳みコンテナとを混載することができるものである。
【００３６】
また、請求項５記載の発明にあっては、上記請求項４記載の発明の効果に加えて、大底板の下面部の少なくとも四隅部分及び長辺間に係止部を設け、支持突出部に被係止部を設け、係止部を被係止部に係止してあるので、複数の並設した小型の折り畳みコンテナの上に大型の折り畳みコンテナを載置した際に、大型の折り畳みコンテナがずれないように積載できて、安定した混載ができるものである。
【００３７】
また、請求項６記載の発明にあっては、上記請求項１記載の発明の効果に加えて、大型の折り畳みコンテナの長辺側の側板の上面部に上方に向けて突出するずれ防止突起を設け、小型の折り畳みコンテナの小底板の端部に組み立て状態の大型の折り畳みコンテナの上に複数の小型の折り畳みコンテナを並べて載置した際にずれ防止用突起に嵌め込むための嵌め込み凹部を形成してあるので、箱状に組み立てた状態の大型の折り畳みコンテナの上に複数の小型の折り畳みコンテナがずれないように載置できるとともに、積載状態で大型の折り畳みコンテナの長辺側の側板が外に開くのを防止することができるものである。
【図面の簡単な説明】
【図１】本発明の大型の折り畳みコンテナと小型の折り畳みコンテナをそれぞれ折り畳んで混載した状態の斜視図である。
【図２】同上の分解斜視図である。
【図３】同上の正面図である。
【図４】同上の側面図である。
【図５】同上の大型の折り畳みコンテナと小型の折り畳みコンテナとを折り畳んで積載した積載部分の断面図である。
【図６】（ａ）は図５の左端部分の拡大断面図であり、（ｂ）は図５の中央部部分の拡大断面図である。
【図７】同上の大型の折り畳みコンテナと小型の折り畳みコンテナとを折り畳んで混載した他の例を示す正面図である。
【図８】同上に用いる大型の折り畳みコンテナの折り畳み状態の斜視図である。
【図９】同上に用いる大型の折り畳みコンテナの折り畳み状態の平面図である。
【図１０】同上に用いる大型の折り畳みコンテナの折り畳み状態の正面図である。
【図１１】同上に用いる大型の折り畳みコンテナの箱状に組み立てた状態の斜視図である。
【図１２】同上に用いる大型の折り畳みコンテナの箱状に組み立てた状態の正面図である。
【図１３】同上に用いる大型の折り畳みコンテナの下面図である。
【図１４】同上に用いる小型の折り畳みコンテナの折り畳み状態の斜視図である。
【図１５】同上に用いる小型の折り畳みコンテナの折り畳み状態の正面図である。
【図１６】同上に用いる小型の折り畳みコンテナの箱状に組み立てた状態の斜視図である。
【図１７】同上に用いる小型の折り畳みコンテナの箱状に組み立てた状態の正面図である。
【図１８】同上に用いる小型の折り畳みコンテナの下面図である。
【図１９】同上に用いる大型の折り畳みコンテナと小型の折り畳みコンテナとを組み立てた状態で混載している状態の斜視図である。
【図２０】同上の正面図である。
【図２１】同上の断面図である。
【符号の説明】
１Ａ大底板
１ａ小底板
２Ａ長辺側の側板
２Ｂ短辺側の側板
２ａ一方の側板
２ｂ他方の側板
３Ａ大型の折り畳みコンテナ
３ａ小型の折り畳みコンテナ
４Ａ支持突部
４ａ支持突出部
５Ａ係止部
５ａ係合部
６Ａ被係合部
６ａ被係止部
７ずれ防止用突起
８嵌め込み凹部[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a folding container loading structure for loading a large folding container and a small folding container.
[0002]
[Prior art]
  Conventionally, a pair of first side plates rotatably attached to a pair of opposing sides of a rectangular bottom plate, and a pair of second side plates rotatably attached to another pair of opposing sides Are folded in a state where the pair of first side plates are folded down and the pair of second side plates are folded down, and the pair of second side plates are raised, and then the pair of first side plates are raised to form a box shape. Folding containers to assemble are known. When the folding container is stored or transported in an empty state, it is stored or transported by stacking a plurality of folded containers in a state where the folding container is folded to reduce the bulk.
[0003]
  By the way, there are a plurality of types of the above folding containers having different bottom plate sizes. When these folded different bottom plate sizes are stored and transported, the bottom plate size is the same. In the state where the folding containers are folded together, they are stacked and stored or transported, and for this reason, it is necessary to sort the folding containers with different sizes of the bottom plate and stack them separately up and down, There was a problem that the distribution cost was high.
[0004]
  Conventionally, when a small folded container in a folded state is placed on a large folded container in a folded state, the small folded container is placed on the side plate in the folded state on the large folded container. Therefore, the mounting is unstable and cannot be stacked high up and down, and the side plates are easily damaged. For these reasons, folding containers having different bottom plate sizes cannot be mixed up and down.
[0005]
[Problems to be solved by the invention]
  The present invention has been invented in view of the above-described problems, and can stably load a large foldable container and a small foldable container having different bottom plate sizes, and a large foldable container having different bottom plate sizes. It is an object of the present invention to provide a stacking structure for a folding container in which the container and a small folding container can be mixedly mounted so that the side plate is not damaged.
[0006]
[Means for Solving the Problems]
  In order to achieve the above object, the folding container stacking structure of the present invention has a long side plate 2A rotatably attached to the opposing long side of the rectangular large bottom plate 1A, and a side plate 2A that is turned around the opposing short side. The side plate 2B on the short side that was movably mounted was first brought down on one side of either the pair of side plates 2A on the long side or the pair of side plates 2B on the short side, and then the other side was pushed over it. A large folding container 3A that is folded in a state and the other side is erected and then erected on one side to be assembled into a box shape is formed and attached to a pair of opposite sides of the rectangular small bottom plate 1a so as to be rotatable. A pair of first side plates 2a and a pair of second side plates 2b rotatably attached to the other pair of opposite sides are paired with a pair of second side plates 2a after the pair of first side plates 2a is brought down. A pair of second side plates folded in a state in which the side plates 2b are tilted After standing b, the pair of first side plates 2a is raised to form a small folding container 3a that is assembled into a box shape, and one side of the small bottom plate 1a of the small folding container 3a is connected to the short side of the large large bottom plate 1A. WhenSame lengthAnd the other side of the small bottom plate 1a to the long side of the large bottom plate 1A1 / N, where N is an integer greater than or equal to 2The support protrusion 4A protrudes upwardly between both ends of at least the four corners and the long side of the large bottom plate 1A of the large folding container 3A,Engaging portions 5a are provided at least at the four corners of the bottom surface of the small bottom plate 1a, and engaged portions 6A are provided on the supporting projections 4A of the large bottom plate 1A.A plurality of small foldable containers 3a are placed on the upper surface of the large foldable container 3A in a folded state, and a plurality of small folds are formed on support protrusions 4A projecting between at least four corners and both ends of the long side of the large bottom plate 1A. Container 3aMount and support at least the four corners of each small bottom plate 1a and engage the engaging portion 5a with the engaged portion 6A.It is characterized by comprising. With such a configuration, a plurality of small folding containers 3a are stacked on the folded large folding container 3A, and the four corners of the small bottom plate 1a of each of the plurality of small folding containers 3a are respectively large folding containers. ofWhen a plurality of small folding containers 3a are placed side by side on the large folding container 3A by supporting the supporting projection 4A and engaging the engaging portion 5a with the engaged portion 6A, The small foldable container 3a can be loaded so as not to slip,It can be stably supported and mixed.
[0007]
  Here, it is preferable to provide a rib on the outer side of the support protrusion 4A protruding between both ends of the long side of the large bottom plate 1A.
[0008]
  Moreover, since the upper end part of 4 A of support protrusions protrudes upwards rather than the upper stage side plate in the folding state of the large foldable container 3A, when mounting several small foldable containers 3a on the large foldable container 3A. In addition, it is possible to prevent the load of the plurality of small folding containers 3a from being applied to the upper side plate in the folded state of the large folding container 3A, and to place another load on the large folding container 3A in the folded state. Even when the figurine is placed, the side plate can be prevented from being loaded by being supported by the support protrusions 4A upward at least at the four corners and the long side of the large bottom plate 1A.
[0009]
  Further, support protrusions 4a are provided at least at the four corners of the small bottom plate of the small folding container 3a, and a plurality of small folding containers 3a in a folded state are arranged so as to overlap the large folding container 3A in plan view. A large foldable container 3A is placed on a plurality of small foldable containers 3a arranged side by side, and a large size is provided on support protrusions 4a projecting from at least four corners of a small bottom plate 1a of the plurality of small foldable containers 3a arranged side by side. It is preferable to mount and support the large bottom plate 1A of the folding container 3A. By adopting such a configuration, a large folding container 3A can be placed on a plurality of small folding containers 3a arranged side by side. In this case, the load from the large bottom plate 1A of the large folding container 3A is divided into a plurality of small sizes. The folding container 3a can be stably supported by being placed on the support protrusions 4a protruding at the four corners. Accordingly, a plurality of small folding containers 3a are placed on the large folding container 3A, and a large folding container 3A is placed on the plurality of small folding containers 3a arranged side by side. The foldable containers 3A and a plurality of small foldable containers 3a arranged side by side can be mixed and stacked.
[0010]
  In addition, a locking portion 5A is provided between at least the four corners and the long side of the lower surface portion of the large bottom plate 1A, a locked portion 6a is provided on the support protrusion 4a, and the locking portion 5A is locked to the locked portion 6a. It is preferable to do. With such a configuration, when the large folding container 3A is placed on the plurality of small folding containers 3a arranged side by side, the large folding container 3A can be stacked so as not to be displaced.
[0011]
  In addition, the upper side of the side plate 2A on the long side of the large foldable container 3A is provided with a shift prevention projection 7 that protrudes upward, and the large fold in the assembled state is provided at the end of the small bottom plate 1a of the small foldable container 3a. It is preferable to form a fitting recess 8 for fitting into the shift prevention projection 7 when a plurality of small folding containers 3a are placed side by side on the container 3A. By adopting such a configuration, a plurality of small folding containers 3a can be placed on the large folding container 3A assembled in a box shape so as not to be displaced, and the large folding container 3A is loaded in a loaded state. The side plate 2A on the long side can be prevented from opening outside.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, embodiments of the present invention will be described.
[0013]
  The large folding container 3A used in the present invention is as shown in FIG. 8 to FIG. 13, and the long side plate 2A is rotatably attached to the opposing long sides of the rectangular large bottom plate 1A. A side plate 2B on the short side is pivotally attached to each of the opposing short sides, and one of the pair of side plates 2A on the long side or the pair of side plates 2B on the short side is first tilted, and then on it. After the other side is folded, it is folded and the other side is erected, and then one side is erected and assembled into a box shape. In the embodiment shown in the accompanying drawings, the pair of side plates 2A on the long side is tilted, and then the pair of side plates 2B on the short side is folded on it, and then the pair of side plates 2B on the short side is raised. A pair of side plates 2A on the side side is raised to be assembled in a box shape. Of course, after the pair of side plates 2B on the short side is folded down, the pair of side plates 2A on the long side is folded down on the pair, and the pair of side plates 2A on the long side is erected and then the pair of short sides is paired. It may be assembled like a box by raising the side plate 2B.
[0014]
  Between the four corners of the rectangular large bottom plate 1A and both ends of the long sides, support protrusions 4A project upward. In the embodiment shown in the accompanying drawings, an example is shown in which two small folding containers 3a are mounted on the large folding container 3A. In this case, between both ends of the long side of the rectangular large bottom plate 1A 4A are provided at positions that bisect the two, and when three small folding containers 3a are placed on the large folding container 3A, both ends of the long side of the rectangular large bottom plate 1A The support protrusion 4A is provided at a position that divides the space into three equal parts. Similarly, when four small foldable containers 3a are mounted on the large foldable container 3A, support projections 4A are provided at positions that divide both ends of the long side of the rectangular large bottom plate 1A into four equal parts. is there.
[0015]
  As shown in FIG. 8, the upper end of the support protrusion 4A protrudes above the upper side plate (the side plate 2B on the short side in FIG. 8) when the large folding container 3A is folded. Further, the support protrusions 4A located at the four corners of the large bottom plate 1A among the support protrusions 4A.₁Is a recessed groove 6A having an L-shape in plan view at the upper end.₁Is formed and this recessed groove 6A₁Is the engaged portion 6A, and the support protrusion 4A is provided on the long side of the large bottom plate 1A of the support protrusion 4A.₂Are recessed grooves 6A on both sides of the upper end.₂Is formed and this recessed groove 6A₂Is the engaged portion 6A.
[0016]
  As shown in FIG. 13, a circumferential step portion 10A is formed around the lower surface portion of the rectangular large bottom plate 1A, and is further parallel to the short side between the opposing short sides of the lower surface portion of the large bottom plate 1A. (In the embodiment shown in the accompanying drawings, one middle step 11 is formed in the middle part of both short sides).Yes),The circumferential step portion 10A and the middle step portion 11 are at the same level, and the width of the middle step portion 11 is twice the width of the circumferential step portion 10A. The portion surrounded by the circumferential step portion 10A of the lower surface portion of the large bottom plate 1A is a protruding bottom portion 13A protruding downward, and this protruding bottom portion 13A is separated into a plurality of longitudinal directions by the middle step portion 11, Each of the four corners of the protruding bottom portion 13A separated into a plurality constitutes a locking portion 5A.
[0017]
  When the folded large containers 3A are stacked one above the other, the upper large folded container 3A on the upper surface of the support protrusion 4A faces upward at the four corners and the long sides of the lower folded container 3A. The four corners of the peripheral step portion 10A of the bottom surface portion of the large bottom plate 1A and both ends of the middle step portion 11 in the short side direction are respectively mounted, and the four corner portions of the projecting bottom portion 13A divided into a plurality of portions are engaged. Recessed groove 6A in which stop part 5A constitutes engaged part 6A, respectively₁, Groove 6A₂To prevent lateral slippage.
[0018]
  In the state where the pair of side plates 2A on the long side and the pair of side plates 2B on the short side of the large folding container 3A are erected and assembled in a box shape, the end and the short side of the side plate 2A on the adjacent long side The end portion of the side plate 2B on the side is detachably connected by any joining means so that the assembled state in a box shape can be maintained. Further, on the upper surface portion of the side plate 2A on the long side, protrusions 7 for preventing displacement protrude upwardly in a plurality of areas in the longitudinal direction (the upper surface portion of the side plate 2A on the long side side in the embodiment of FIG. 11). The protrusions 7 for preventing displacement protrude upwardly in the two longitudinal sections of FIG.
[0019]
  The small folding container 3a has a pair of first side plates 2a rotatably attached to a pair of opposite sides of the rectangular small bottom plate 1a, and a pair of second side plates 2b on the other pair of opposite sides. The pair of first side plates 2a are folded down, folded in a state where the pair of second side plates 2b are folded down, and the pair of second side plates 2b are erected, and then the pair of first side plates 2b is raised. The side plate 2a is erected to be assembled into a box shape. In a state where the pair of first side plates 2a and the pair of second side plates 2b of the small folding container 3a are erected and assembled in a box shape, the end portions of the adjacent first side plates 2a and the second side plates 2b are assembled. These end portions are detachably connected to each other by any joining means so that the assembled state in a box shape can be maintained.
[0020]
  Here, the small bottom plate 1a of the small folding container 3a has a short side of the large bottom plate 1A having a large side.Same lengthAnd the other side of the small bottom plate 1a is the long side of the large bottom plate 1A.1 / N. Here, N is an integer of 2 or more.In the embodiment shown in the accompanying drawings, the rectangular small bottom plate 1a is an example in which the long side of the small bottom plate 1a and the short side of the large bottom plate 1A are formed.Same lengthAnd the short side of the small bottom plate 1a is 1/2 of the large bottom plate 1A (that is, N is 2), and the first side plate 2a is the long side plate and the second side plate 2b is An example of a side plate on the short side is shown. Of course, the rectangular small bottom plate 1a may be square, and the short side of the rectangular small bottom plate 1a may be 1/3, 1/4,... Of the large bottom plate 1A. It is.
[0021]
  Support protrusions 4a project upward from the four corners of the small bottom plate 1a, and the upper ends of the support protrusions 4a are positioned above the side plate that is the upper stage when the small folding container 3a is folded. is doing. Further, a concave groove 6a having an L shape in plan view is formed on the upper surface portion of the support protrusion 4a.₁And a recessed groove 6a having an L shape in plan view.₁Constitutes the locked portion 6a. Further, a circumferential step portion 10a is formed on the lower surface portion of the small bottom plate 1a, and a portion surrounded by the circumferential step portion 10a is a protruding bottom portion 13a projecting downward on the lower surface portion of the small bottom plate 1a. The four corners of the protruding bottom portion 13a are engaging portions 5a.
[0022]
  When the folded small folding containers 3a are stacked one above the other, the bottom surface of the small bottom plate 1a of the upper small folding container 3a is formed on the upper surface of the support protrusions 4a provided at the four corners of the lower small folding container 3a. The four corner portions of the peripheral step portion 10a are placed, and the engaging portions 5a at the four corner portions of the projecting bottom portion 13a are respectively recessed grooves 6a that constitute the locked portions 6a.₁To prevent lateral slippage.
[0023]
  Using the large foldable container 3A and the small foldable container 3a configured as described above, the stored items are respectively stored in the assembled large foldable container 3A and the assembled small foldable container 3a. Or store things. And in the state which does not put a storage thing, the large foldable container 3A and the small foldable container 3a are each folded, conveyed, or stored.
[0024]
  Here, in carrying and storing the large foldable container 3A and the small foldable container 3a in a folded state, in the present invention, as shown in FIGS. 1 and 2, the folded large foldable container is used. A plurality of small folding containers 3a can be placed side by side and stacked on the container 3A. That is, a plurality of small foldable containers 3a are placed on the upper surface of the large foldable container 3A in a folded state, and a plurality of small foldable containers are provided on the support protrusions 4A projecting at least at the four corners and long sides of the large bottom plate 1A. At least four corner portions of the 3a small bottom plate 1a are placed and supported. In this case, the short side and the short side of the large folding container 3ASame lengthA plurality of small foldable containers 3a are arranged on the large foldable container 3A so that one side of the small foldable container 3a is parallel to each other, and thereby, the large foldable container 3A and the plurality of small foldable containers 3a, Are stacked in the same size.
[0025]
  Here, as shown in FIG. 6, the engaging portions 5a provided at the four corners of the lower surface of each small bottom plate 1a of the plurality of small folding containers 3a are engaged with the engaged portions 6A of the supporting projections 4A. When a plurality of small foldable containers 3a are placed side by side on a large foldable container 3A, the plurality of small foldable containers 3a can be stacked so as not to be displaced and can be mixed and stably mounted. It has become. Further, as described above, the upper end of the support protrusion 4A is configured to protrude upward from the upper side plate in the folded state of the large folding container 3A. When the small folding container 3a is placed, the load of the plurality of small folding containers 3a can be prevented from being applied to the upper side plate in the folded state of the large folding container 3A. Even when another object to be placed is placed on the large folding container 3A in the open state, the side plate is not loaded by being supported by the support protrusions 4A upward at least at the four corners and the long side of the large bottom plate 1A. This prevents the side plate from being damaged without applying a load to the folded side plate.
[0026]
  As described above, a plurality of small folding containers 3a are stacked and stacked on the large folding container 3A. In this case, the large folding containers 3A are stacked in multiple stages and a plurality of large folding containers 3A are stacked. Among them, a plurality of small folding containers 3a may be placed and loaded on a large folding container 3A of an arbitrary number of stages as described above, or a plurality of juxtaposed small sizes loaded as described above. A plurality of small folding containers 3a may be placed and stacked on the folding container 3a, or a large folding container 3A may be loaded on the plurality of small folding containers 3a arranged side by side. Is.
[0027]
  Multiple smallFolding container 3aWhen the large folding container 3A is placed and stacked on top of each other, as shown in FIG. 6, the supporting protrusions 4a projecting at least at the four corners of the small bottom plates 1a of the plurality of small folding containers 3a The large bottom plate 1A of the folding container 3A is placed, and a locking portion 5A provided between at least the four corners and the long side of the bottom surface of the large bottom plate 1A is locked to the locked portion 6a of the support protruding portion 4a. It is like that. As a result, when the large folding container 3A is placed on the plurality of small folding containers 3a arranged side by side, the large folding container 3A is stably stacked so as not to shift.
FIGS. 3 and 7 show examples of loading of the large folding container 3A and a plurality of small folding containers 3a. Of course, various loading modes other than the above can be adopted.
[0028]
  A plurality of small folding containers 3a assembled in a box shape may be stacked on the large folding container 3A in a folded state. In this case as well, a plurality of small folding containers 3a folded as described above are loaded in the same state as being placed on the large folding container 3A and loaded.
[0029]
  Alternatively, a large folding container 3A may be placed on a plurality of small folding containers 3a in a folded state. In this case as well, the large folding container 3A folded as described above is loaded in the same state as being placed and loaded on the plurality of small folded containers 3a folded.
[0030]
  On the other hand, the large folding container 3A is assembled into a box shape, the small folding container 3a is assembled into a box shape, and a plurality of small folding containers 3A are placed on the large folding container 3A assembled into a box shape as shown in FIGS. The folding container 3a can be mixed and mounted. In this case, the small folding container 3a is connected to the short side of the large bottom plate 1A of the small bottom plate 1a.Same lengthAre arranged so as to be parallel to the short side of the large bottom plate 1A, and a plurality of the sides are placed on the large folding container 3A. Then, as shown in FIG. 21, the end of the small bottom plate 1a of each small folding container 3a is formed on the shift prevention projection 7 protruding upward on the upper surface of the side plate 2A on the long side of the large folding container 3A. The fitting recessed portion 8 provided in the portion is fitted, so that a plurality of small folding containers 3a can be placed on the large folding container 3A assembled in a box shape so as not to be displaced, and The side plate 2A on the long side of the folding container 3A can be prevented from opening outside. In this case, the projecting bottom portion 13a at the bottom of each small folding container 3a fits into the upper opening of the large folding container 3A, so that the long side side plate 2A and the short side plate of the large folding container 3A. 2B is prevented from falling inward, and a plurality of small folding containers 3a are prevented from further shifting.
[0031]
  Here, the large folding container 3A may be placed on a plurality of the small folding containers 3a arranged side by side assembled in a box shape. In this case, the upper opening edge of a plurality of small folding containers 3a arranged in parallel is fitted into the peripheral step portion 10A and the middle step portion 11 of the bottom surface 1A of the large folding container 3A (the adjacent folding containers 3a The upper opening edge portion is fitted into the middle step portion 11) so that the large folding container 3A is not displaced.
[0032]
【The invention's effect】
  In the invention according to claim 1 of the present invention, as described above, one side of the small bottom plate of the small folding container is replaced with the short side of the large large bottom plate.Same lengthAnd the other side of the small bottom plate1 / N, where N is an integer greater than or equal to 2A support protrusion projecting upwardly between at least the four corners and the long sides of the large bottom plate of the large folding container,An engagement portion is provided in at least four corners of the lower surface portion of the small bottom plate, and an engaged portion is provided in the support protrusion of the large bottom plate,A plurality of small folding containers are placed on the upper surface of a large folding container in a folded state, and a plurality of small folding containers are mounted on at least four corners of the large bottom plate and support protrusions projecting between both ends of the long side.Mount and support at least the four corners of each small bottom plate and engage the engaging part with the engaged partTherefore, a plurality of small folding containers can be stacked on the folded large folding container, and the four corners of the small bottom plate of each of the small folding containers can be supported by the supporting protrusions of the large folding container.In addition, since the engaging portion is engaged with the engaged portion, when a plurality of small folding containers are placed side by side on a large folding container, the plurality of small folding containers are loaded so as not to shift. And as a result,When a large foldable container and a small foldable container are each folded and transported and stored, they can be transported and stored together to simplify distribution.
[0033]
  In the invention according to claim 2,As described above, a rib is provided on the outer side of the support protrusion protruding between both ends of the long side of the large bottom plate that supports the corner of the small bottom plate of the small folding container.
[0034]
  In addition, in the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the upper end portion of the support protrusion is more than the upper side plate in the folded state of the large folding container. Since it protrudes upward, when placing a plurality of small folding containers on the large folding container, the load of the plurality of small folding containers is applied to the upper side plate in the folded state of the large folding container. In addition, even when another object is placed on a large folding container in a folded state, it is supported by the support protrusions upward at least at the four corners and the long side of the large bottom plate. The side plate can be prevented from being loaded, and the side plate of the large foldable container can be prevented from being damaged.
[0035]
  Further, in the invention described in claim 4, in addition to the effect of the invention described in claim 1 above, the supporting protrusions are provided at least at the four corners of the small bottom plate of the small folding container so that the small size in the folded state is obtained. A plurality of folding containers are arranged so as to overlap with a large folding container in plan view, a large folding container is placed on the juxtaposed small folding container, and a plurality of small folding containers are juxtaposed. Since the large bottom plate of the large folding container is placed and supported on the support protrusions projecting at least at the four corners of the small bottom plate, it is possible to place a large folding container on top of multiple small folding containers arranged side by side. , Which can be stably supported by placing the load from the large bottom plate of a large folding container on the support projections projecting at the four corners of multiple small folding containers Therefore, a large folding container is mounted on a large folding container, and a large folding container is mounted on a plurality of small folding containers arranged side by side. It is possible to carry out mixed loading such as alternately stacking a plurality of small folding containers juxtaposed with a container, and it is possible to more efficiently load a large folding container and a small folding container.
[0036]
  In addition, in the invention according to claim 5, in addition to the effect of the invention according to claim 4, a locking portion is provided between at least the four corners and the long side of the lower surface of the large bottom plate, and the support protrusion is provided. Since the locked part is provided and the locked part is locked to the locked part, when a large folding container is placed on a plurality of small folding containers arranged in parallel, the large folding container It can be loaded so that it will not shift, and stable mixed loading will be possible.
[0037]
  In addition, in the invention described in claim 6, in addition to the effect of the invention described in claim 1, a slip prevention protrusion protruding upward is formed on the upper surface portion of the side plate on the long side of the large folding container. A fitting recess is formed at the end of the small bottom plate of the small folding container to fit into the protrusion for preventing slipping when a plurality of small folding containers are placed side by side on the large folding container in an assembled state. Therefore, it is possible to place a plurality of small folding containers on the large folding container assembled in a box shape so that they do not shift, and the side plate on the long side of the large folding container is placed outside. It can be prevented from opening.
[Brief description of the drawings]
FIG. 1 is a perspective view of a state in which a large folding container and a small folding container according to the present invention are folded and mixed.
FIG. 2 is an exploded perspective view of the above.
FIG. 3 is a front view of the same.
FIG. 4 is a side view of the above.
FIG. 5 is a cross-sectional view of a loading portion in which a large folding container and a small folding container are folded and stacked.
6A is an enlarged cross-sectional view of the left end portion of FIG. 5, and FIG. 6B is an enlarged cross-sectional view of the central portion of FIG.
FIG. 7 is a front view showing another example in which a large folding container and a small folding container are folded and mounted together.
FIG. 8 is a perspective view showing a folded state of a large-sized folding container used for the above.
FIG. 9 is a plan view showing a folded state of a large-sized folding container used for the above.
FIG. 10 is a front view showing a folded state of a large folding container used for the above.
FIG. 11 is a perspective view of a large folding container used in the same state assembled in a box shape.
FIG. 12 is a front view showing a state in which the large folding container used in the above is assembled in a box shape.
FIG. 13 is a bottom view of a large folding container used for the above.
FIG. 14 is a perspective view of a small folded container used for the above in a folded state.
FIG. 15 is a front view showing a folded state of a small folding container used in the above.
FIG. 16 is a perspective view of a small folding container used in the above state assembled in a box shape.
FIG. 17 is a front view of a small folded container used in the above state assembled in a box shape.
FIG. 18 is a bottom view of a small folding container used in the above.
FIG. 19 is a perspective view showing a state in which a large folding container and a small folding container used in the above are mixedly mounted in an assembled state.
FIG. 20 is a front view of the above.
FIG. 21 is a cross-sectional view of the above.
[Explanation of symbols]
  1A large bottom plate
  1a Small bottom plate
  2A Long side plate
  2B Side plate on the short side
  2a One side plate
  2b The other side plate
  3A large folding container
  3a Small folding container
  4A support protrusion
  4a Support protrusion
  5A Locking part
  5a Engagement part
  6A engaged part
  6a Locked part
  7 Protrusion for slip prevention
  8 Insertion recess

Claims

A long side plate and a long side plate attached to the opposing long sides of the rectangular large bottom plate, respectively, and a short side plate attached to the opposing short sides, respectively. One side of the side plate or the pair of side plates on the short side is first folded, then folded on the other side with the other side tilted, and the other side is erected, and then one side is erected and assembled into a box shape Forming a large folding container,
A pair of first side plates rotatably attached to a pair of opposing sides of the rectangular small bottom plate, and a pair of second side plates attached to the other pair of opposing sides to be rotatable, A small unit that is folded in a state where the pair of first side plates are folded and folded while the pair of second side plates are tilted, and the pair of second side plates is raised, and then the pair of first side plates are raised and assembled into a box shape. Forming a folding container
One side of the small bottom plate of the small folding container has the same length as the short side of the large large bottom plate, and the other side of the small bottom plate is 1 / N of the long side of the large bottom plate , N is an integer of 2 or more ,
Support protrusions project upward from at least the four corners and the long sides of the large bottom plate of the large folding container,
An engagement portion is provided in at least four corners of the lower surface portion of the small bottom plate, and an engaged portion is provided in the support protrusion of the large bottom plate,
Each small at least four corner portions and the long side a plurality of small folding container support projection projecting from across the large bottom plate with mounting a plurality of small folding container on the upper surface of the large folding container in the folded state 1. A folding container stacking structure comprising : at least four corner portions of a bottom plate mounted and supported; and an engaging portion engaged with an engaged portion .

2. The folding container stacking structure according to claim 1 , wherein ribs are provided on the outer sides of the support protrusions protruding between both ends of the long side of the large bottom plate .

3. The folding container stacking structure according to claim 1, wherein an upper end portion of the support protrusion protrudes upward from an upper side plate in a folded state of the large folding container.

Support protrusions are provided at least at the four corners of the small bottom plate of the small folding container, and a plurality of small folding containers in a folded state are arranged so as to overlap the large folding container in plan view. The large folding container is placed on the folding container, and the large bottom plate of the large folding container is placed and supported on the support protrusions projecting at least at the four corners of the small bottom plates of the plurality of small folding containers arranged side by side. The folding structure for folding containers according to claim 1, wherein:

A locking portion is provided between at least the four corners and the long side of the bottom surface of the large bottom plate, a locked portion is provided on the support protrusion, and the locking portion is locked to the locked portion. The folding structure of the folding container according to claim 4.

The upper side of the side plate on the long side of the large foldable container is provided with an anti-slip projection that protrudes upward, and a plurality of small folds are placed on the small foldable container on the end of the small bottom plate of the small foldable container. 2. The folding container stacking structure according to claim 1, further comprising a fitting recess for fitting into the slip prevention protrusion when the folding containers are placed side by side.