JP3542387B2

JP3542387B2 - Mounting structure of canopies in transport containers

Info

Publication number: JP3542387B2
Application number: JP25310794A
Authority: JP
Inventors: 照夫満田; 勝海野尻; 晃一日名; 開平寺嶋
Original assignee: Shinwa Corp
Current assignee: Shinwa Corp
Priority date: 1994-10-19
Filing date: 1994-10-19
Publication date: 2004-07-14
Anticipated expiration: 2019-07-14
Also published as: JPH08119376A

Description

【０００１】
【産業上の利用分野】
本発明は、輸送容器における天蓋の取付構造に関し、上端が開口した容器と、この容器の開口部に取付固定される天蓋とを備えた輸送容器一般に利用することができる。
【０００２】
【従来の技術】
物品又は材料を収容して輸送するための輸送容器として、例えば図９に示すような鋼板製容器が使用されている。この輸送容器は、上端が開口した函型の容器１と天蓋２とに分離されており、使用に際し、収容物を容器１の内部に収容した後、容器１の開口部Ａの縁に天蓋２を取付固定するものである。
【０００３】
容器１は、３本の台脚１ａ、底板１ｂ、４本の支柱１ｃ、４枚のパネル板１ｄ、および４本の上かまち１ｅを主要な構成要素とする結合構造体である。各支柱１ｃは底板１ｂのコーナ部に立設され、各パネル板１ｄは底板１ｂの辺部に立設される。各上かまち１ｅは支柱１ｃの上端部間に横架される。パネル板１ｄは例えば同図に示すような波形鋼板で、波の軸を上下方向に向けて使用される。上かまち１ｅは断面略コ字形のアングル材で、そのコ字形部分にパネル板１ｄの上端が被着される。
【０００４】
天蓋２は、容器１の開口部Ａを閉塞可能な大きさを有する天板部２ａと、天板部２ａの４辺から下方に連続して延在した側縁部２ｂとを備えている。天蓋２は、側縁部２ｂを下にして上方から容器１の開口部Ａに被着する。側縁部２ｂの内側が開口部Ａの縁外側に適合することにより、天蓋２は容器１に程よく嵌まる。天蓋２は上記のようにして容器１の開口部Ａに被着された後、開口部Ａの縁に固定される。そのための手段として、従来より、天蓋２の側縁部２ｂを、開口部Ａの縁を構成する上かまち１ｅにタッピングビス等で締め付け固定する手段が採用されてきたが、取付作業に多くの手間と時間を要するため、作業性改善を目的として、図１０あるいは図１１に示すような、ワンタッチ式の取付構造が採用される場合がある。
【０００５】
図１０に示す取付構造は、天蓋２のコーナ部外側面に溶接等で固着した取付金具１３（コーナ金具）の爪片１３ｃを、上かまち１ｅの外側縁部１ｅ３の下端に係合させて天蓋２を固定するものである。取付金具１３の爪片１３ｃは内側に湾曲した形状をなし、天蓋２を上方向にずらそうとする力に対して、爪片１３ｃと上かまち１ｅとの係合力（固定力）が働くことにより、天蓋２の容器１からの脱落が防止される。
【０００６】
図１１に示す取付構造は、天蓋２のはり１２に溶接等で固着した取付金具２３（コ字形金具）の爪片２３ｃを、上かまち１ｅの外側側縁部１ｅ３の下端に係合させて天蓋２を固定するものである。爪片２３ｃは上記爪片１３ｃと同じ形状をなし、上記と同様の作用により、天蓋２の容器１からの脱落が防止される。
【０００７】
【発明が解決しようとする課題】
上述した従来の取付構造において、取付金具１３（２３）の爪片１３ｃ（２３ｃ）と上かまち１ｅの外側縁部１ｅ３との係合力（固定力）は、天蓋２を上方向にずらそうとする力に対して働きを持つもので、天蓋２を前後方向（紙面と垂直方向）または左右方向（紙面と平行方向）にずらそうとする力に対しては働きを持たない。そのため、天蓋２に前後方向または左右後方の横ずれや歪み等が生じると、係合力（固定力）に低下をきたしたり、場合によっては、爪片１３ｃが外側縁部１ｅ３からはずれ、天蓋２が容器１から脱落してしまう可能性もある。
【０００８】
また、取付金具１３（２３）を天蓋２に固着するための作業（溶接等）が必要であり、製造工程増につながる。
【０００９】
さらに、図１０に示す取付構造においては、取付金具１３の爪片１３ｃが外部に露出しているので、荷降などの際、他の輸送容器やその他周辺部材が爪片１３ｃに当たり、爪片１３ｃが変形を起こすことにより、上記と同様に、固定力の低下や消失をきたすおそれもある。
【００１０】
そこで、本発明は、簡単な構造でありながら安定した固定力を備え、しかも製造工程が簡素でかつ取付作業が容易な取付構造を提供しようとするものである。
【課題を解決するための手段】
【００１１】
本発明の取付構造は、▲１▼容器の開口部の縁を構成する部材に設けられたスリット穴、▲２▼開口部の縁コーナに適合する平板部と、この平板部から下方に延在し、開口部の縁コーナ外側に適合する内側縁部と、この内側縁部の下端から外側にＵ字状に湾曲しさらに上方に延在した外側縁部と、平板部から下方に延在した首部、および、この首部から下方に延在した弾性変形可能な弾性部を有する爪片と、内側縁部から外側に突出した爪部とを備えた取付金具、▲３▼開口部を閉塞可能な大きさを有する天板部と、この天板部から下方に延在した側縁部と、この側縁部に設けられた係合部とを備えた天蓋とで構成され、▲４▼取付金具の爪片をスリット穴に挿入し、その弾性部をスリット穴によって弾性変形させながら首部まで嵌め入れることにより、取付金具を開口部の縁コーナに取付固定し、▲５▼さらに、取付金具の内側縁部と外側縁部との間に形成されるコーナ空間に、天蓋の側縁部のコーナを挿入し、その係合部を爪部に係合させることにより、天蓋を取付金具を介して開口部の縁に取付固定するものである。
【００１２】
また、本発明の取付構造は、▲１▼容器の開口部の縁コーナを構成する中空状の支柱に設けられたスリット穴、▲２▼開口部の縁コーナに適合する平板部と、この平板部から下方に延在し、開口部の縁コーナ外側に適合する内側縁部と、この内側縁部の下端から外側にＵ字状に湾曲しさらに上方に延在した外側縁部と、平板部から下方に延在し、支柱の中空穴に適合する爪片と、内側縁部から外側に突出した外爪部と、内側縁部から内側に突出した内爪部とを備えた取付金具、▲３▼開口部を閉塞可能な大きさを有する天板部と、この天板部から下方に延在した側縁部と、この側縁部に設けられた係合部とを備えた天蓋とで構成され、▲４▼取付金具の内爪部を支柱のスリット穴に嵌め入れ、かつ、爪片を支柱の中空穴上端に適合させることにより、取付金具を開口部の縁コーナに取付固定し、▲５▼さらに、取付金具の内側縁部と外側縁部との間に形成されるコーナ空間に、天蓋の側縁部のコーナを挿入し、その係合部を外爪部に係合させることにより、天蓋を取付金具を介して開口部の縁に取付固定するものである。
【００１３】
【作用】
天蓋を取付固定するに際しては、まず、容器の開口部の縁コーナに取付金具を取付固定し、つぎに、取付金具のコーナ空間に天蓋の側縁部のコーナを挿入する。
【００１４】
取付金具の爪片を、その弾性部を弾性変形させながらスリット穴を貫通させて首部まで嵌め入れると、上方向の力に対してはスリット穴を貫通して弾性復元した弾性部とスリット穴を形成した部材との係合力が働き、前後左右方向の力に対しては首部と上記部材との係合力が働く。これにより、取付金具は開口部の縁コーナに取付固定される。
【００１５】
天蓋の側縁部のコーナを取付金具のコーナ空間に挿入し、側縁部に設けられた係合部を取付金具の爪部に係合させると、上方向の力に対しては係合部と爪部との係合力が働き、前後左右方向の力に対しては側縁部と内側縁部または外側縁部との係合力が働く。これにより、天蓋は取付金具を介して開口部の縁に固定される。
【００１６】
取付金具の内爪部を支柱のスリット穴に嵌め入れ、かつ、爪片を支柱の中空穴上端に適合させることにより、上方向の力に対しては内爪部と支柱との係合力が働き、前後左右方向の力に対して内爪部および爪片と支柱との係合力が働く。これにより、取付金具は開口部の縁コーナに取付固定される。
【００１７】
【実施例】
以下、本発明を図９に示す輸送容器に適用した実施例について説明する。尚、本発明は上端が開口した容器と、この容器の開口部に取付固定される天蓋とを備えた輸送容器一般について適用可能であり、特に、図９に示す輸送容器に限って適用し得るものではない。
【００１８】
図１に示すように、天蓋２は取付金具３を介して容器１の開口部Ａの縁に取付固定される。天蓋２は、側縁部２ｂの下端を内側にＵ字状に折り返し加工（ヘミング加工）した係合部２ｃを備えている（図１ｂ参照）。また、容器１の開口部Ａの縁を構成する部材、すなわち支柱１ｃおよび上かまち１ｅのうち、上かまち１ｅにスリット穴１ｅ１が設けられている。スリット穴１ｅ１は、図４に示すような長短寸法Ｌ１、Ｌ２を有する。
【００１９】
図２に示すように、取付金具３は、開口部Ａの縁コーナに適合する平板部３ａと、平板部３ａから下方に連続して延在し、開口部Ａの縁コーナ外側に適合する内側縁部３ｂ１と、内側縁部３ｂ１の下端から外側にＵ字状に湾曲しさらに上方に延在した外側縁部３ｂ２と、平板部３ａを両角部分において内側に切り起こし、さらに湾曲状に成形した２つの爪片３ｃと、内側縁部３ｂ１を外側に切り起こした２つの爪部３ｄ（図２ｄ参照）とを備えている。内側縁部３ｂ１と外側縁部３ｂ２との間には、開口部Ａの縁コーナに沿ったコーナ空間Ｍが形成される。尚、この実施例では、外側縁部３ｂ２の上端を、天板部３ａよりも上方に寸法ｔだけ延在させている（図２ｂ参照）。
【００２０】
爪片３ｃは、平板部３ａから下方に連続して延在した首部３ｃ１と、首部３ｃ１から下方に連続した湾曲部３ｃ２と、湾曲部３ｃ２から下方に連続して延在した下端部３ｃ２とを有する。首部３ｃ１、湾曲部３ｃ２、下端部３ｃ３は同幅（Ｗ３）である。また、湾曲部３ｃ２は上下方向の曲率を有し、そのため、湾曲部３ｃ２は厚さ方向から圧縮力を受けると厚さ寸法（Ｓ３：図２ｂ参照）が縮小する方向に弾性変形する。図４に示すスリット穴１ｅの寸法との関係は、Ｗ３≦Ｌ１、Ｓ３〉Ｌ２である。
【００２１】
図３は、天蓋２の取付固定後の状態を示している。天蓋２を取付固定するに際しては、まず、開口部Ａの縁コーナに取付金具３を取付固定し、つぎに、取付金具３のコーナ空間Ｍに、天蓋２の側縁部２ｂのコーナを挿入する。
【００２２】
取付金具３の取付固定は、その爪片３ｃを上かまち１ｅのスリット穴１ｅ１に嵌め入れることにより、ワンタッチで行なうことができる。すなわち、爪片３ｃを下端部３ｃ３からスリット穴１ｅ１に挿入してゆくと、Ｓ３〉Ｌ２であるため、湾曲部３ｃ２の凸曲側の中央部がスリット穴１ｅ１の長寸法Ｌ１側の壁面と接触し、湾曲部３ｃ２が厚さ方向に圧縮されて弾性変形する。そして、湾曲部３ｃ２は、その上端がスリット穴１ｅ１を貫通した時点で弾性復元し、Ｓ３〉Ｌ２となる。この時、スリット穴１ｅには首部３ｃ１が挿入されている。
【００２３】
以上のようにして、取付金具３の爪片３ｃを、湾曲部３ｃ２を弾性変形させながらスリット穴１ｅ１を貫通させて首部３ｃ１まで嵌め入れると、上方向の力に対しては湾曲部３ｃ２の上端と上かまち１ｅとの係合力が働き、前後左右方向（紙面と垂直又は水平方向）の力に対しては首部３ｃ１と上かまち１ｅとの係合力が働くことにより、爪片３ｃがスリット穴１ｅ１から抜けなくなる。これにより、取付金具３は容器１の開口部Ａの縁に固定される。この固定力は、上方向及び前後左右方向に作用する。
【００２４】
天蓋２の取付固定は、その側縁部２ｂのコーナを取付金具３のコーナ空間Ｍに挿入し、Ｕ字状に折り返し加工された係合部２ｃを、爪部３ｄに係合させることにより、ワンタッチで行なうことができる。係合部２ｃを爪部３ｄに係合させると、上方向の力に対しては係合部２ｃと爪部３ｄとの係合力が働き、前後左右方向の力に対しては側縁部２ｂ（係合部２ｃ）と内側縁部３ｂ１または外側縁部３ｂ２との係合力が働くことにより、天蓋２が取付金具３を介して開口部Ａの縁に固定される。この固定力も、上方向及び前後左右方向に作用するので、天蓋２の横ずれ又は歪み等が生じた場合でも、天蓋２は容易に容器１から脱落しなくなる。尚、天蓋の係合部２ｃは、この実施例のように、側縁部２ｂの下端を内側に折り返し加工したものに限られず、例えば図６に示すように、側縁部２ｂに貫通窓２ｃ’を設け、これを爪部３ｄに係合させる構成としても良い。
【００２５】
天蓋２の取付固定後、取付金具３の外側縁部３ｂ２が、天蓋２の天板部２ａから上方に寸法ｔ’（ｔ―天板部２ａの肉厚）だけ突出するが、この突出した部分は、この輸送容器の上に他の輸送容器を積重ねたりする場合において、他の輸送容器の下端コーナを側方から支え、その位置ずれや荷崩れを防止する機能をもつものである。輸送容器の荷積み、輸送、保管にきわめて便利である。
【００２６】
取付金具３の爪片３ｃは、図５に示すような形状にしても良い。この実施例の爪片３ｃは、図２に示す平板部３ａから下方に連続して延在した幅狭の首部３ｃ１と、首部３ｃ１から下方に連続して延在した逆台形状の湾曲部３ｃ２とを有する。湾曲部３ｃ２は幅方向（平板部３ａの辺方向）の曲率を有し、そのため、湾曲部３ｃ２は幅方向から圧縮力を受けると幅寸法（Ｗ）が縮小する方向に弾性変形し、逆に、幅と直行する方向（厚さ方向とする。）から圧縮力を受けると厚さ寸法（Ｓ）が縮小する方向に弾性変形する。また、湾曲部３ｃ２の両側端３ｃ３はそれぞれ幅方向および厚さ方向に傾斜し、そのため、湾曲部３ｃ２はその上端から下端にかけて幅寸法および厚さ寸法が漸次減少した形状をなす（自然状態の幅寸法Ｗ１〉Ｗ２、自然状態の厚さ寸法Ｓ１〉Ｓ２）。
【００２７】
上記のような形状・寸法を有する２つの爪片３ｃを、上かまち１ｅのスリット穴１ｅ１にそれぞれ嵌め入れて、取付金具３を開口部Ａの縁コーナに取付固定するのであるが、これには、爪片３ｃの湾曲部３ｃ２の寸法（Ｗ１、Ｗ２、Ｓ１、Ｓ２）と図４に示すスリット穴１ｃの長短寸法Ｌ１、Ｌ２との関係により、以下の２つの態様がある。
【００２８】
まず、第１の態様は、Ｓ１〉Ｌ２≧Ｓ２、Ｗ１≦Ｌ１と設定し、湾曲部３ｃ２の厚さ方向の弾性変形能を利用して、爪片３ｃをスリット穴１ｅ１に嵌め入れるものである。すなわち、湾曲部３ｃ２をその下端（Ｓ２）からスリット穴１ｅ１に挿入してゆくと、Ｓ１〉Ｌ２≧Ｓ２であるため、湾曲部３ｃ２の凸曲側の中央部と両側部３ｃ３がそれぞれスリット穴１ｅ１の長寸法Ｌ１側の壁面と接触し、湾曲部３ｃ２がスリット穴１ｅ１によって厚さ方向に圧縮されて弾性変形する。この時、湾曲部３ｃ２の両側部３ｃ３が厚さ方向に傾斜した形状になっているので（Ｓ１〉Ｓ２）、湾曲部３ｃ２が受ける圧縮力はスリット穴１ｅ１への挿入寸法に比例して漸次に増大してゆき、これに伴い、湾曲部３ｃ２の弾性変形量は漸次に増加してゆく。そして、湾曲部３ｃ２は、その上端（Ｓ１）がスリット穴１ｅ１を貫通した時点で弾性復元し、Ｓ１〉Ｌ２となる。この時、スリット穴１ｅには首部３ｃ１が挿入されている。
【００２９】
以上のようにして、取付金具３の爪片３ｃを、湾曲部３ｃ２を弾性変形させながらスリット穴１ｅ１を貫通させて首部３ｃ１まで嵌め入れると、天蓋２を上方向にずらそうとする力に対しては湾曲部３ｃ２の上端（Ｓ１）と上かまち１ｅとの係合力が働き、前後左右方向にずらそうとする力に対しては首部３ｃ１と上かまち１ｅとの係合力が働くことにより、爪片３ｃがスリット穴１ｅ１から抜けなくなる。これにより、取付金具３が容器１の開口部Ａの縁に固定される。この固定力は、上方向及び前後左右方向に作用する。また、爪片３ｃをスリット穴１ｅに嵌め入れる際、厚さ方向に傾斜した両側端部３ｃ３が湾曲部３ｃ２の挿入を円滑に案内するので、固定作業に大きな力を必要とせず、しかも過大な嵌め入れ力による爪片３ｃの座屈変形も防止される。
【００３０】
つぎに、第２の態様は、Ｗ１〉Ｌ１≧Ｗ２、Ｓ１≦Ｌ２と設定し、湾曲部３ｃ２の幅方向の弾性変形能を利用して、爪片３ｃをスリット穴１ｅ１に嵌め入れるものである。すなわち、湾曲部３ｃ２をその下端（Ｗ２）からスリット穴１ｅ１に挿入してゆくと、Ｗ１〉Ｌ１≧Ｗ２であるため、湾曲部３ｃ２の両側部３ｃ３がそれぞれスリット穴１ｅ１の短寸法Ｌ２側の壁面と接触し、湾曲部３ｃ２がスリット穴１ｅ１によって幅方向に圧縮されて弾性変形する。そして、湾曲部３ｃ２は、その上端（Ｗ１）がスリット穴１ｅ１を貫通した時点で弾性復元し、Ｗ１〉Ｌ１となる。この時、スリット穴１ｅには首部３ｃ１が挿入されている。その他の基本的な作用、および、効果は上記第１の態様と同様であるので重複する説明を省略する。
【００３１】
尚、以上の実施例において、爪片３ｃの湾曲部３ｃ２はスリット穴１ｅ１を貫通した時点で弾性復元し、上かまち１ｅと上方向に係合可能となる機能を有するもの故、このような機能を奏する限りにおいて、他の要素で置換することが可能である。例えば、硬質ゴム、樹脂等の弾性を有する材料を所定形状に成形し、爪片３ｃに固着した構成などが考えられる。
【００３２】
図７および図８に示す実施例は、支柱１ｃのスリット穴１ｃ１と中空穴１ｃ２とを利用して、取付金具３を容器１の開口部Ａの縁コーナに取付固定するものである。
【００３３】
図７に示すように、取付金具３は、開口部Ａの縁コーナに適合する平板部３ａと、平板部３ａから下方に連続して延在し、開口部Ａの縁コーナ外側に適合する内側縁部３ｂ１と、内側縁部３ｂ１の下端から外側にＵ字状に湾曲しさらに上方に延在した外側縁部３ｂ２と、平板部３ａを下方に切り起こした４つの爪片３ｃ’と、内側縁部３ｂ１を外側に切り起こした２つの外爪部３ｄ（同図では１つのみ図示）と、内側縁部３ｂ１を内側に切り起こした２つの三角突起状の内爪部３ｄ’（同図では１つのみ図示）とを備えている。４つの爪片３ｃ’は四角状に配列され、それぞれ、支柱１ｃの中空穴１ｃ２の各内側辺に適合する位置、寸法になっている。また、内爪部３ｄ’は、その上端から下端にかけて突出寸法が漸次減少した形状をなす。
【００３４】
取付金具３の取付固定は、内爪部３ｄ’を支柱１ｃの外側壁面に接触させ、これを、主に側縁部３ｂ１の弾性変形によって外側に変位させながら外側壁面上を下方に滑らせてゆく。内爪部３ｄ’は、その上端がスリット穴１ｃ１に達した時点で内側に復元変位し、図８ｂに示すように、スリット穴１ｃ１に嵌まり込む。同時に、平板部３ａに設けられた４つの爪片３ｃ’も支柱１ｃの中空穴１ｃ２に嵌まり込む。
【００３５】
以上のようにして、取付金具３の内爪部３ｄ’を、弾性的に外側に変位させながらスリット穴１ｃ１に嵌め入れ、かつ、爪片３ｃ’を支柱１ｃの中空穴１ｃ２に嵌め入れると、上方向の力に対しては内爪部３ｄ’の上端と支柱１ｃとの係合力が働き、前後左右方向にずらそうとする力に対しては内爪部３ｄ’の両側および爪片３ｃ’と支柱１ｃとの係合力が働くことにより、取付金具３が容器１の開口部Ａの縁に固定される。この固定力は、上方向及び前後左右方向に作用する。尚、天蓋２の取付金具３に対する取付構造は、上述した実施例と同様なので、図８ａに図示するにとどめ、その説明は省略する。
【００３６】
尚、輸送容器の前後左右寸法が大きい場合には、その辺部の固定状態が不十分になることもあり得る。このような場合には、例えば図１２に示すような構造を併用すると良い。この構造は、天蓋２の側縁部２ｂの下端を内側にＵ字状に折り返し加工した係合部２ｃを、上かまち１ｅの外側縁部１ｅ５を外側に切り起こした爪部１ｅ６に係合させるものである。外側側縁部１ｅ５の下端は、外側にＵ字状に湾曲した後、上方に延在している。尚、同図に示す構造は、本出願人による特願平６−１５１８５３号に含まれた種々の構造のうちの一つであるが、同出願に含まれる他の構造を同様に用いても良い。
【００３７】
【発明の効果】
本発明は以下に示す効果を有する。
【００３８】
（１）上方向、前後左右方向に安定した固定力を持つので、天蓋の横ずれや歪みに対しても固定力の低下が生じにくく、安定した固定状態を維持できる。
【００３９】
（２）取付金具は天蓋の内側面に固定され、外部に露出しないので、荷降などの際、他部材との当接によって爪片又は爪部に変形をきたす心配がなく、安定した固定力を維持できる。
【００４０】
（３）爪片又は爪部をスリット穴に嵌め入れるだけで良いので、天蓋の取付作業をワンタッチでしかも簡単に行なうことができる。
【００４１】
（４）爪片又は爪部とスリット穴との係合構造なので、構造が比較的簡単であり、コスト面でも有利である。
【００４２】
（５）従来構造のように、取付金具を天蓋に溶接等により固着する必要がないので、製造工程が簡素化される。
【図面の簡単な説明】
【図１】本発明の実施例を示す斜視図である。
【図２】図１における取付金具の斜視図（図ａ）、図２ａにおける取付金具のｂ方向矢視図（図ｂ）、爪片の平面図（図ｃ）、爪部の斜視図（図ｄ）である。
【図３】図１における天蓋の取付固定後の状態を示す断面図である。
【図４】図１におけるスリット穴の周辺部を示す平面図である。
【図５】本発明の他の実施例に係わる取付金具の爪片を示す正面図（図ａ）、側面図（図ｂ）、平面図（図ｃ）である。
【図６】本発明の他の実施例に係わる天蓋の係合部を示す斜視図である。
【図７】本発明の他の実施例を示す斜視図である。
【図８】図７における天蓋の取付固定後の状態を示す断面図（図ａおよび図ｂ）である。
【図９】輸送容器を示す斜視図である。
【図１０】従来の取付構造を示す断面図である。
【図１１】従来の取付構造を示す断面図である。
【図１２】実施例において、辺部に併用し得る取付構造を示す斜視図である。
【符号の説明】
１容器
１ｅ１スリット穴
１ｃ支柱
１ｃ１スリット穴
２天蓋
２ａ天板部
２ｂ側縁部
２ｃ係合部
３取付金具
３ｃ爪片
３ｃ’爪片
３ｄ爪部（外爪部）
３ｄ’内爪部[0001]
[Industrial applications]
The present invention relates to a mounting structure of a canopy in a transport container, and can be generally used for a transport container including a container having an open upper end and a canopy attached and fixed to an opening of the container.
[0002]
[Prior art]
As a transport container for storing and transporting articles or materials, for example, a steel plate container as shown in FIG. 9 is used. This transport container is separated into a box-shaped container 1 having an open upper end and a canopy 2. In use, after storing the contents in the container 1, the canopy 2 is attached to the edge of the opening A of the container 1. Is attached and fixed.
[0003]
The container 1 is a coupling structure having three pedestals 1a, a bottom plate 1b, four columns 1c, four panel plates 1d, and four upper stiles 1e as main components. Each column 1c is erected at a corner of the bottom plate 1b, and each panel plate 1d is erected at a side of the bottom plate 1b. Each upper stile 1e is suspended between the upper ends of the columns 1c. The panel plate 1d is, for example, a corrugated steel plate as shown in FIG. The upper stile 1e is an angle member having a substantially U-shaped cross section, and the upper end of the panel plate 1d is attached to the U-shaped portion.
[0004]
The canopy 2 includes a top plate 2a having a size capable of closing the opening A of the container 1 and side edges 2b extending downward continuously from four sides of the top plate 2a. The canopy 2 is attached to the opening A of the container 1 from above with the side edge 2b facing down. By fitting the inside of the side edge 2b to the outside of the edge of the opening A, the canopy 2 fits into the container 1 moderately. The canopy 2 is fixed to the edge of the opening A after being attached to the opening A of the container 1 as described above. As means for this purpose, means for fastening the side edge portion 2b of the canopy 2 to the upper sill 1e constituting the edge of the opening A with a tapping screw or the like has conventionally been employed. Therefore, a one-touch mounting structure as shown in FIG. 10 or FIG. 11 may be adopted for the purpose of improving workability.
[0005]
In the mounting structure shown in FIG. 10, the claw piece 13c of the mounting bracket 13 (corner bracket) fixed to the outer surface of the corner portion of the canopy 2 by welding or the like is engaged with the lower end of the outer edge 1e3 of the upper stake 1e. 2 is fixed. The claw 13c of the mounting bracket 13 has an inwardly curved shape, and an engaging force (fixing force) between the claw 13c and the upper stile 1e acts on a force for shifting the canopy 2 upward. The canopy 2 is prevented from falling off the container 1.
[0006]
In the mounting structure shown in FIG. 11, the canopy 23c of the mounting bracket 23 (U-shaped metal fitting) fixed to the beam 12 of the canopy 2 by welding or the like is engaged with the lower end of the outer side edge 1e3 of the upper stile 1e. 2 is fixed. The claw piece 23c has the same shape as the claw piece 13c, and the same action as described above prevents the canopy 2 from dropping out of the container 1.
[0007]
[Problems to be solved by the invention]
In the above-described conventional mounting structure, the engaging force (fixing force) between the claw pieces 13c (23c) of the mounting bracket 13 (23) and the outer edge 1e3 of the upper stile 1e tends to shift the canopy 2 upward. It has an effect on the force, and has no effect on the force for shifting the canopy 2 in the front-rear direction (vertical direction to the paper surface) or the left-right direction (parallel to the paper surface). Therefore, when the canopy 2 is displaced or distorted in the front-rear direction or the left-right direction, the engaging force (fixing force) is reduced, and in some cases, the claw pieces 13c are disengaged from the outer edge 1e3, and the canopy 2 is in a container. There is also a possibility that it will fall out of 1.
[0008]
In addition, an operation (such as welding) for fixing the mounting bracket 13 (23) to the canopy 2 is required, which leads to an increase in the number of manufacturing steps.
[0009]
Further, in the mounting structure shown in FIG. 10, since the claw pieces 13c of the mounting bracket 13 are exposed to the outside, when unloading or the like, other transport containers or other peripheral members hit the claw pieces 13c, and the claw pieces 13c As a result, the fixing force may be reduced or lost as described above.
[0010]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a mounting structure that has a simple structure, has a stable fixing force, has a simple manufacturing process, and can be easily mounted.
[Means for Solving the Problems]
[0011]
The mounting structure of the present invention includes: (1) a slit hole provided in a member constituting an edge of the opening of the container; (2) a flat plate portion that fits into the edge corner of the opening; and a lower portion extending from the flat plate portion. And an inner edge that fits outside the edge corner of the opening, an outer edge that curves outward in a U-shape from the lower end of the inner edge and extends further upward, and extends downward from the flat plate portion. A fitting having a neck, a claw piece extending downward from the neck and having an elastically deformable elastic portion, and a claw projecting outward from an inner edge portion. (3) The opening can be closed. A top plate having a top plate having a size, a side edge extending downward from the top plate, and an engagement portion provided on the side edge; Insert the claw piece into the slit hole and fit the elastic part up to the neck part while elastically deforming it with the slit hole. Then, the mounting bracket is attached and fixed to the edge corner of the opening. (5) Further, the corner of the side edge of the canopy is inserted into the corner space formed between the inner edge and the outer edge of the mounting bracket. The canopy is inserted and the engaging portion is engaged with the claw portion, so that the canopy is attached and fixed to the edge of the opening through the mounting bracket.
[0012]
In addition, the mounting structure of the present invention comprises: (1) a slit hole provided in a hollow column constituting an edge corner of the opening of the container; (2) a flat plate portion adapted to the edge corner of the opening; An inner edge extending downward from the portion and conforming to the outside of the edge corner of the opening; an outer edge curved U-shaped outward from the lower end of the inner edge and extending further upward; A fitting that has a claw piece extending downward from and fitting into the hollow hole of the column, an outer claw protruding outward from the inner edge, and an inner claw protruding inward from the inner edge, ▲ 3) A canopy having a top plate having a size capable of closing the opening, a side edge extending downward from the top plate, and an engaging portion provided on the side edge. (4) Fit the inner claw of the mounting bracket into the slit hole of the support, and fit the claw piece to the upper end of the hollow hole of the support The mounting bracket is attached and fixed to the edge corner of the opening, and (5) the corner of the side edge of the canopy is inserted into the corner space formed between the inner edge and the outer edge of the mounting bracket. Then, by engaging the engaging portion with the outer claw portion, the canopy is attached and fixed to the edge of the opening portion via the mounting bracket.
[0013]
[Action]
When mounting and fixing the canopy, first, the mounting bracket is mounted and fixed to the edge corner of the opening of the container, and then the corner of the side edge of the canopy is inserted into the corner space of the mounting bracket.
[0014]
When the claw piece of the mounting bracket is inserted through the slit hole and inserted into the neck while elastically deforming the elastic part, the elastic part and slit hole that have been elastically restored through the slit hole against upward force The engaging force with the formed member acts, and the engaging force between the neck and the member acts on the force in the front, rear, left and right directions. Thereby, the mounting bracket is mounted and fixed to the edge corner of the opening.
[0015]
When the corner of the side edge of the canopy is inserted into the corner space of the mounting bracket, and the engaging portion provided on the side edge is engaged with the claw portion of the mounting bracket, the engaging portion is not affected by an upward force. The engaging force between the side edge and the inner edge or the outer edge acts on the force in the front-rear and left-right directions. Thus, the canopy is fixed to the edge of the opening via the mounting bracket.
[0016]
By fitting the inner claw of the mounting bracket into the slit hole of the support and fitting the claw piece to the upper end of the hollow hole of the support, the engaging force between the inner claw and the support works against upward force. In addition, the engaging force between the inner claw portion and the claw piece and the column acts on the force in the front, rear, left, and right directions. Thereby, the mounting bracket is mounted and fixed to the edge corner of the opening.
[0017]
【Example】
Hereinafter, an embodiment in which the present invention is applied to the transport container shown in FIG. 9 will be described. Note that the present invention is applicable to general transport containers including a container having an open top and a canopy attached and fixed to the opening of the container, and is particularly applicable only to the transport container shown in FIG. Not something.
[0018]
As shown in FIG. 1, the canopy 2 is mounted and fixed to the edge of the opening A of the container 1 via the mounting bracket 3. The canopy 2 is provided with an engaging portion 2c in which the lower end of the side edge portion 2b is turned inward (hemming) in a U-shape (see FIG. 1B). Further, among the members constituting the edge of the opening A of the container 1, that is, the support 1c and the upper stile 1e, the upper stile 1e is provided with a slit hole 1e1. The slit hole 1e1 has long and short dimensions L1 and L2 as shown in FIG.
[0019]
As shown in FIG. 2, the mounting bracket 3 includes a flat plate portion 3 a that fits the edge corner of the opening A, and an inner portion that extends continuously downward from the flat plate portion 3 a and that fits outside the edge corner of the opening A. The edge 3b1, the outer edge 3b2 which is curved outward in a U-shape from the lower end of the inner edge 3b1 and extends further upward, and the flat plate portion 3a is cut and raised inward at both corners, and further formed into a curved shape. It has two claw pieces 3c and two claw portions 3d (see FIG. 2d) in which the inner edge 3b1 is cut and raised outward. A corner space M is formed between the inner edge 3b1 and the outer edge 3b2 along the edge corner of the opening A. In this embodiment, the upper end of the outer edge 3b2 extends above the top plate 3a by a dimension t (see FIG. 2B).
[0020]
The claw piece 3c includes a neck 3c1 extending downward from the flat plate 3a, a curved portion 3c2 extending downward from the neck 3c1, and a lower end 3c2 extending downward from the curved portion 3c2. Have. The neck 3c1, the curved portion 3c2, and the lower end 3c3 have the same width (W3). Further, the curved portion 3c2 has a curvature in the vertical direction, and therefore, when receiving a compressive force from the thickness direction, the curved portion 3c2 elastically deforms in a direction in which the thickness dimension (S3: see FIG. 2B) is reduced. The relationship with the dimensions of the slit hole 1e shown in FIG. 4 is W3 ≦ L1, S3> L2.
[0021]
FIG. 3 shows a state after the canopy 2 is attached and fixed. When mounting and fixing the canopy 2, first, the mounting bracket 3 is mounted and fixed to the edge corner of the opening A, and then the corner of the side edge 2 b of the canopy 2 is inserted into the corner space M of the mounting bracket 3. .
[0022]
The mounting bracket 3 can be mounted and fixed with one touch by fitting the claw piece 3c into the slit hole 1e1 of the upper stile 1e. That is, when the nail piece 3c is inserted into the slit hole 1e1 from the lower end portion 3c3, since S3> L2, the central portion on the convex curved side of the curved portion 3c2 comes into contact with the wall surface on the long dimension L1 side of the slit hole 1e1. Then, the curved portion 3c2 is compressed in the thickness direction and elastically deforms. Then, the curved portion 3c2 is elastically restored when its upper end passes through the slit hole 1e1, and S3> L2. At this time, the neck 3c1 is inserted into the slit hole 1e.
[0023]
As described above, when the claw piece 3c of the mounting bracket 3 is fitted into the neck 3c1 through the slit hole 1e1 while elastically deforming the curved portion 3c2, the upper end of the curved portion 3c2 against upward force. The engagement between the neck 3c1 and the upper stile 1e acts on the force in the front-rear and left-right directions (vertical or horizontal direction with respect to the paper surface), and the claw piece 3c causes the slit piece 1e1 to act. Not get out of Thereby, the mounting bracket 3 is fixed to the edge of the opening A of the container 1. This fixing force acts in the upward direction and in the front, rear, left and right directions.
[0024]
The fixing of the canopy 2 is performed by inserting the corner of the side edge 2b into the corner space M of the mounting bracket 3, and engaging the engaging portion 2c, which is folded back into a U-shape, with the claw 3d. It can be done with one touch. When the engaging portion 2c is engaged with the claw portion 3d, the engaging force between the engaging portion 2c and the claw portion 3d acts on the upward force, and the side edge portion 2b acts on the front, rear, left and right directions. When the engaging force between the (engaging portion 2c) and the inner edge 3b1 or the outer edge 3b2 acts, the canopy 2 is fixed to the edge of the opening A via the mounting bracket 3. Since this fixing force also acts in the upward direction and in the front-rear and left-right directions, the canopy 2 does not easily fall off the container 1 even when the canopy 2 is displaced or distorted. Incidentally, the engaging portion 2c of the canopy is not limited to the one in which the lower end of the side edge portion 2b is turned inward as in this embodiment. For example, as shown in FIG. 'May be provided and this may be engaged with the claw 3d.
[0025]
After the canopy 2 is mounted and fixed, the outer edge 3b2 of the mounting bracket 3 protrudes upward from the top plate 2a of the canopy 2 by a dimension t '(t-thickness of the top plate 2a). Has a function of supporting the lower end corner of another transport container from the side when stacking another transport container on this transport container, and preventing the position shift and the collapse of the load. Extremely convenient for loading, transporting and storing transport containers.
[0026]
The claw 3c of the mounting bracket 3 may be shaped as shown in FIG. The claw piece 3c of this embodiment has a narrow neck portion 3c1 continuously extending downward from the flat plate portion 3a shown in FIG. 2 and an inverted trapezoidal curved portion 3c2 continuously extending downward from the neck portion 3c1. And The curved portion 3c2 has a curvature in the width direction (side direction of the flat plate portion 3a). Therefore, when receiving a compressive force from the width direction, the curved portion 3c2 elastically deforms in a direction in which the width dimension (W) is reduced, and conversely. When a compressive force is applied in a direction perpendicular to the width (thickness direction), the sheet is elastically deformed in a direction in which the thickness dimension (S) is reduced. Further, both side edges 3c3 of the curved portion 3c2 are inclined in the width direction and the thickness direction, respectively, so that the curved portion 3c2 has a shape in which the width dimension and the thickness dimension are gradually reduced from the upper end to the lower end (the width in the natural state). Dimension W1> W2, natural thickness S1> S2).
[0027]
The two claw pieces 3c having the shapes and dimensions as described above are fitted into the slit holes 1e1 of the upper stile 1e, respectively, and the mounting bracket 3 is mounted and fixed to the edge corner of the opening A. According to the relationship between the dimensions (W1, W2, S1, S2) of the curved portion 3c2 of the claw piece 3c and the long and short dimensions L1, L2 of the slit hole 1c shown in FIG.
[0028]
First, in the first mode, S1> L2 ≧ S2, W1 ≦ L1, and the claw piece 3c is fitted into the slit hole 1e1 by utilizing the elastic deformation ability in the thickness direction of the curved portion 3c2. . That is, when the curved portion 3c2 is inserted into the slit hole 1e1 from its lower end (S2), since S1> L2 ≧ S2, the central portion and both side portions 3c3 of the curved portion 3c2 on the convex curved side are respectively formed in the slit holes 1e1. And the curved portion 3c2 is compressed in the thickness direction by the slit hole 1e1 to be elastically deformed. At this time, since both sides 3c3 of the curved portion 3c2 have a shape inclined in the thickness direction (S1> S2), the compressive force received by the curved portion 3c2 gradually increases in proportion to the insertion dimension into the slit hole 1e1. The elastic deformation amount of the curved portion 3c2 gradually increases accordingly. Then, the curved portion 3c2 is elastically restored when its upper end (S1) passes through the slit hole 1e1, and S1> L2. At this time, the neck 3c1 is inserted into the slit hole 1e.
[0029]
As described above, when the claw piece 3c of the mounting bracket 3 is fitted into the neck portion 3c1 through the slit hole 1e1 while elastically deforming the curved portion 3c2, a force for shifting the canopy 2 upward is obtained. The engaging force between the upper end (S1) of the curved portion 3c2 and the upper stile 1e acts, and the engaging force between the neck portion 3c1 and the upper stitch 1e acts on the force to shift in the front-rear and left-right directions. The piece 3c does not fall out of the slit hole 1e1. Thereby, the mounting bracket 3 is fixed to the edge of the opening A of the container 1. This fixing force acts in the upward direction and in the front, rear, left and right directions. Further, when the claw piece 3c is fitted into the slit hole 1e, the both end portions 3c3 inclined in the thickness direction guide the insertion of the curved portion 3c2 smoothly, so that a large force is not required for the fixing work, and it is excessive. Buckling deformation of the claw piece 3c due to the fitting force is also prevented.
[0030]
Next, in the second mode, W1> L1 ≧ W2 and S1 ≦ L2 are set, and the nail piece 3c is fitted into the slit hole 1e1 by utilizing the elastic deformability of the curved portion 3c2 in the width direction. . That is, when the curved portion 3c2 is inserted into the slit hole 1e1 from its lower end (W2), since W1> L1 ≧ W2, both side portions 3c3 of the curved portion 3c2 have the wall surfaces on the short dimension L2 side of the slit hole 1e1. And the curved portion 3c2 is compressed in the width direction by the slit hole 1e1 and elastically deforms. The curved portion 3c2 is elastically restored when its upper end (W1) passes through the slit hole 1e1, and W1> L1. At this time, the neck 3c1 is inserted into the slit hole 1e. The other basic operations and effects are the same as those in the first embodiment, and thus redundant description will be omitted.
[0031]
In the above-described embodiment, the curved portion 3c2 of the claw piece 3c has a function of elastically restoring at the time of penetrating the slit hole 1e1 and having a function of being able to engage with the upper stile 1e in the upward direction. Can be replaced with another element. For example, a configuration in which an elastic material such as hard rubber or resin is formed into a predetermined shape and fixed to the claw piece 3c is conceivable.
[0032]
In the embodiment shown in FIGS. 7 and 8, the mounting bracket 3 is mounted and fixed to the edge corner of the opening A of the container 1 by utilizing the slit hole 1c1 and the hollow hole 1c2 of the column 1c.
[0033]
As shown in FIG. 7, the mounting bracket 3 includes a flat plate portion 3 a that fits the edge corner of the opening A, and an inner portion that extends continuously downward from the flat plate portion 3 a and that fits outside the edge corner of the opening A. An edge portion 3b1, an outer edge portion 3b2 which is curved outward in a U-shape from the lower end of the inner edge portion 3b1 and further extends upward, four claw pieces 3c 'obtained by cutting and raising the flat plate portion 3a downward; Two outer claws 3d (only one is shown in the figure) with the edge 3b1 cut out to the outside, and two triangular protruding inner claws 3d '(the same figure) with the inner edge 3b1 cut in the inside. (Only one is shown). The four claw pieces 3c 'are arranged in a quadrangular shape, and each has a position and a size suitable for each inner side of the hollow hole 1c2 of the support 1c. The inner claw portion 3d 'has a shape in which the protrusion dimension is gradually reduced from the upper end to the lower end.
[0034]
The mounting fixture 3 is fixed by bringing the inner claw portion 3d 'into contact with the outer wall surface of the column 1c and sliding it downward on the outer wall surface while displacing it outward mainly by elastic deformation of the side edge portion 3b1. go. When the upper end of the inner claw portion 3d 'reaches the slit hole 1c1, the inner claw portion 3d' is displaced inward and is fitted into the slit hole 1c1 as shown in FIG. 8B. At the same time, the four claw pieces 3c 'provided on the flat plate portion 3a also fit into the hollow holes 1c2 of the support 1c.
[0035]
As described above, when the inner claw portion 3d ′ of the mounting bracket 3 is fitted into the slit hole 1c1 while being elastically displaced outward, and the claw piece 3c ′ is fitted into the hollow hole 1c2 of the support 1c. An engaging force between the upper end of the inner claw portion 3d 'and the column 1c acts on an upward force, and both sides of the inner claw portion 3d' and a claw piece 3c 'act on a force to be displaced in the front-rear and left-right directions. The fitting 3 is fixed to the edge of the opening A of the container 1 by the engagement force between the support 1 and the support 1 c. This fixing force acts in the upward direction and in the front, rear, left and right directions. Since the mounting structure of the canopy 2 to the mounting bracket 3 is the same as that of the above-described embodiment, it is only shown in FIG. 8A, and the description is omitted.
[0036]
When the front and rear and right and left dimensions of the transport container are large, the fixed state of the side may be insufficient. In such a case, for example, a structure as shown in FIG. According to this structure, the engaging portion 2c formed by folding the lower end of the side edge portion 2b of the canopy 2 inward in a U-shape is engaged with the claw portion 1e6 formed by cutting the outer edge portion 1e5 of the upper stile 1e outward. Things. The lower end of the outer side edge 1e5 extends upward after being curved outward in a U-shape. Note that the structure shown in the figure is one of various structures included in Japanese Patent Application No. 6-151853 filed by the present applicant, but other structures included in the same application can be similarly used. good.
[0037]
【The invention's effect】
The present invention has the following effects.
[0038]
(1) Since a stable fixing force is provided in the upward, front, rear, left, and right directions, a decrease in the fixing force hardly occurs even when the canopy is laterally displaced or deformed, and a stable fixed state can be maintained.
[0039]
(2) Since the mounting bracket is fixed to the inner surface of the canopy and is not exposed to the outside, there is no fear that the claw pieces or claw portions may be deformed due to contact with other members during unloading, and a stable fixing force. Can be maintained.
[0040]
(3) Since it is only necessary to fit the claw pieces or claw portions into the slit holes, the mounting work of the canopy can be performed with one touch and easily.
[0041]
(4) Since the engagement structure between the claw piece or claw portion and the slit hole is employed, the structure is relatively simple, and the cost is advantageous.
[0042]
(5) Unlike the conventional structure, it is not necessary to fix the mounting bracket to the canopy by welding or the like, so that the manufacturing process is simplified.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
2 is a perspective view of the mounting bracket in FIG. 1 (FIG. A), a view of the mounting bracket in the direction of arrow b in FIG. 2a (FIG. B), a plan view of the nail piece (FIG. C), and a perspective view of the nail section (FIG. d).
FIG. 3 is a sectional view showing a state after the canopy in FIG. 1 is attached and fixed.
FIG. 4 is a plan view showing a peripheral portion of a slit hole in FIG. 1;
FIG. 5 is a front view (FIG. A), a side view (FIG. B), and a plan view (FIG. C) showing a claw piece of a mounting bracket according to another embodiment of the present invention.
FIG. 6 is a perspective view showing an engagement portion of a canopy according to another embodiment of the present invention.
FIG. 7 is a perspective view showing another embodiment of the present invention.
8 is a cross-sectional view (FIGS. A and b) showing the state after the canopy in FIG. 7 has been attached and fixed.
FIG. 9 is a perspective view showing a transport container.
FIG. 10 is a sectional view showing a conventional mounting structure.
FIG. 11 is a sectional view showing a conventional mounting structure.
FIG. 12 is a perspective view showing a mounting structure that can be used together with a side in the embodiment.
[Explanation of symbols]
Reference Signs List 1 container 1e1 slit hole 1c support 1c1 slit hole 2 canopy 2a top plate 2b side edge 2c engaging part 3 mounting bracket 3c claw piece 3c 'claw piece 3d claw part (outer claw part)
3d 'inner nail

Claims

A box-shaped container having an open upper end, and a canopy mounting structure in a transport container including a canopy attached and fixed to an opening of the container,
A slit hole provided in a member constituting an edge of the opening of the container,
A flat portion that fits the edge corner of the opening, an inner edge that extends downward from the flat portion and fits outside the edge corner of the opening, and a U-shape that extends outward from the lower end of the inner edge A claw piece having an outer edge portion which is curved and further extends upward, a neck portion which extends downward from the flat plate portion, and an elastically deformable elastic portion which extends downward from the neck portion, and the inner edge Mounting bracket with a claw projecting outward from the part,
A top plate having a size capable of closing the opening, a side edge extending downward from the top plate, and a canopy including an engagement portion provided at the side edge. And
The nail of the mounting bracket is inserted into the slit hole, and the elastic part is elastically deformed by the slit hole and fitted into the neck, thereby fixing the mounting bracket to the edge corner of the opening, and further fixing the mounting bracket. Attach the canopy by inserting the corner of the side edge of the canopy into the corner space formed between the inner edge and the outer edge of the canopy, and engaging the engaging portion with the claw portion A canopy mounting structure in a transport container, wherein the canopy is mounted and fixed to an edge of an opening via a metal fitting.

A container with an open upper end, a mounting structure of a canopy in a transport container including a canopy attached and fixed to the opening of the container,
A slit hole provided in a hollow column constituting an edge corner of the opening of the container,
A flat portion that fits the edge corner of the opening, an inner edge that extends downward from the flat portion and fits outside the edge corner of the opening, and a U-shape that extends outward from the lower end of the inner edge An outer edge portion that is curved to extend further upward, a claw piece that extends downward from the flat plate portion and fits into the hollow hole of the support, and an outer claw portion that protrudes outward from the inner edge portion, A mounting bracket having an inner claw protruding inward from the inner edge,
A top plate having a size capable of closing the opening, a side edge extending downward from the top plate, and a canopy including an engagement portion provided at the side edge. And
By fitting the inner claw portion of the mounting bracket into the slit hole of the support, and fitting the claw piece to the upper end of the hollow hole of the support, the mounting bracket is mounted and fixed to the edge corner of the opening, By inserting a corner of a side edge of the canopy into a corner space formed between an inner edge and an outer edge of the mounting bracket, and engaging an engaging portion with the outer claw portion. And mounting the canopy on the edge of the opening via a mounting bracket.