JP3572445B2

JP3572445B2 - Orito

Info

Publication number: JP3572445B2
Application number: JP08826999A
Authority: JP
Inventors: 芳隆平木; 賢姫野; 聖彦田中
Original assignee: ＹｋｋＡｐ株式会社
Priority date: 1999-03-30
Filing date: 1999-03-30
Publication date: 2004-10-06
Anticipated expiration: 2019-03-30
Also published as: JP2000282759A

Description

【０００１】
【発明が属する技術分野】
本発明は、例えば、浴室などに設けられ、左右一対の扉体を中央部で折曲げ自在に連結した折戸に関する。
【０００２】
【従来の技術】
この種の従来の折戸における両扉体の連結縦框は、突合せ部の端面が開放されおり、この突合せ部間には、両連結縦框間の間隙を埋めるように閉塞部材が装着されている。各突合せ部の脱衣室側の端部片には、折曲げ軸部が一体に形成され、また閉塞部材には、各折曲げ軸部を回動自在に軸支する左右一対の軸受け部が設けられていおり、この一対の折曲げ軸部と一対の軸受け部とで、両扉体を折り曲げるためのヒンジ機構が構成されている。
この場合、折曲げ軸部は連結縦框の全長に亘って形成されるが、軸受け部は、閉塞部材の全長に亘って形成される場合（例えば、特公昭６０−４９７４９号公報）と、専用のピース部材として閉塞部材の上下両端部に端部キャップと共に装着される場合（例えば、実用新案登録第２５３８８２４号）とがある。
【０００３】
【発明が解決しようとする課題】
このような、従来の折戸において、前者のヒンジ構造（ヒンジ機構）では、折曲げ軸部と軸受け部とが全長に亘って摺接するため、連結強度は十分に有するものの、製造上における長手方向の形状精度から折戸の円滑な開閉が阻害されたり、折曲げ軸部と軸受け部とが部分的に擦れて傷つくなどの問題があった。
また、後者のヒンジ構造（ヒンジ機構）では、上記のような製造上の誤差に基づく不具合は少ないが、両扉体が上下両端部でのみ軸支されているため、連結強度が不十分であり、折戸の開閉の際に両連結縦框が中間部で大きく撓み、且つ離間して、折戸の円滑な開閉が阻害されたり、閉塞部材の外周面と両連結縦框の浴室側の端部片とが擦れ合って傷つくなどの問題があった。
【０００４】
本発明は、製造上の誤差を吸収することができると共に開閉の際の連結縦框同士の離間を防止して、円滑な開閉を可能にする折戸を提供することをその目的とする。
【０００５】
【課題を解決するための手段】
本発明の折戸は、連結縦框同士を突き合わせた左右の扉体を折曲げ自在に連結すると共に両連結縦框間に跨って配設したヒンジ機構と、両連結縦框間の間隙を閉塞するように両連結縦框間に跨って配設した閉塞部材と、を有する折戸において、ヒンジ機構は、両連結縦框の少なくとも上端部、下端部および中間部にそれぞれ配設され、且つそれぞれが閉塞部材の内側にその小口から挿入・装着される複数の軸受け部材と、両連結縦框の一方の端部片にそれぞれ形成され、各軸受け部材に回動自在に支持される折曲げ軸部と、を備え、各軸受け部材は、見付け方向の左右中間に位置する受け部材本体と、受け部材本体から左側に突出する左受け部と、受け部材本体から右側に突出する右受け部とから成り、左受け部および右受け部は、受け部材本体を挟んで上下方向に相互に位置ずれして配設されていることを特徴とする。
【０００６】
この構成によれば、連結縦框の端部片に形成した折曲げ軸部を回動自在に支持する軸受け部材が、ピースものとして、連結縦框の上端部および下端部に加え、中間部にも設けられているため、連結縦框同士の連結強度が増し、両連結縦框の極端な撓みおよび離間が有効に防止される。また、軸受け部材がピースものであるため、その製造上の誤差による折曲げ軸部と軸受け部材との間の部分当たりを、極力少なくすることができる。なお、上記の「少なくとも」の意味は、中間部に１以上の軸受け部材を配設するとする意味である。
また、両扉体の開閉において、軸受け部材は、閉塞部材の内側に隠蔽され、外部に露出することがない。さらに、中間部に位置する軸受け部材は、閉塞部材をかしめるなどして、これに係止しておくことができる。
【０００７】
この場合、左受け部および右受け部に対し、受け部本体は上下方向に長く形成され且つ挿入側の端部が突出していることが、好ましい。
【０００９】
この場合、各折曲げ軸部は、回動の支点となる支点部と、支点部に連なる円弧部とを有し、軸受け部材は、各支点部を受ける左右一対の支点受け部と、各円弧部を摺動自在に受ける左右一対の円弧受け部とを有していることが、好ましい。また同様に、各折曲げ軸部は、回動の支点となる支点部と、支点部に連なる円弧部とを有し、閉塞部材は、各支点部を受ける左右一対の支点受け部を有し、軸受部材は、各円弧部を摺動自在に受ける左右一対の円弧受け部とを有していることが、好ましい。
【００１０】
この構成によれば、支点受け部に対し支点部が回動すると共に、円弧受け部に対し円弧部が摺動して、両扉体が折り曲げられる。したがって、断面円形の軸および軸受を用いることなく、ヒンジ機構を構成することができる。
【００１１】
これらの場合、閉塞部材の上端部に配設された軸受け部材は、閉塞部材の上小口端に装着した端部キャップに組み込まれ、閉塞部材の下端部に配設された軸受け部材は、閉塞部材の下小口端に装着した端部キャップに組み込まれていることが、好ましい。
【００１２】
この構成によれば、軸受け部材を上下の端部キャップにそれぞれ組み込むことにより、閉塞部材に端部キャップを装着することで、軸受け部材を閉塞部材に簡単に組み付けることができる。また、端部キャップにより、両連結縦框の上下の位置ずれを防止することができる。
【００１３】
これらの場合、各連結縦框は金属製の形材で構成され、各軸受け部材は樹脂で構成されていることが、好ましい。
【００１４】
この構成によれば、相互に摺動する連結縦框の円弧部と、軸受け部材の円弧受け部との摺動面が、金属と樹脂の接触となるため、相互に傷つき難く且つ耳障りな擦れ音が発生が、有効に防止される。
【００１５】
【発明の実施の形態】
以下、添付図面を参照して、本発明の一実施形態に係る折戸を浴室の中折戸に適用した場合について説明する。図１の姿図、図２の横断面図および図３の縦断面図に示すように、この折戸１は、枠体２に左扉体３ａおよび右扉体３ｂから成る扉体３を組み込んで構成され、左扉体３ａと右扉体３ｂとは、突き合わせた状態で、連結部材４を介して折曲げ自在に連結されている。この場合、折戸１は、左右の両扉体３ａ，３ｂが浴室Ａ側に折り込まれることにより開放し、折り込んだ状態から左右の両扉体３ａ，３ｂが脱衣室Ｂ側に展開されることにより閉塞する。
【００１６】
枠体２は、アルミニウムの形材で構成された上枠１１、下枠１２および両縦枠１３，１３を枠組みして成り、浴室Ａの開口部に取り付けられている。上枠１１は、上枠中空部１５と、上枠中空部１５から「Ｌ」字状に脱衣室Ｂ側に延びる上枠見切り片１６とを有し、上枠見切り片１６の下部には、扉体３に向かって延びる上シール部材１７が取り付けられている。また、上枠中空部１５の下面には、両扉体３ａ，３ｂの開閉を案内する上ガイドレール１８が突設されている。
【００１７】
同様に、下枠１２は、下枠中空部２０と、下枠中空部２０から逆「Ｌ」字状に脱衣室Ｂ側に延びる下枠見切り片２１とを有し、下枠見切り片２１の上部には、扉体３に向かって延びる下シール部材２２が取り付けられている。また、下枠中空部２０の上面には、両扉体３ａ，３ｂの開閉を案内する下ガイドレール２３が突設されている。
【００１８】
左右に各縦枠１３は、縦枠中空部２５と、縦枠中空部２５から見込み方向に延びる縦枠見切り片２６と、縦枠中空部２５から見付け方向に延びるシール取付片２７および壁受け片２８とを有している。シール取付片２７には、扉体３に向かって延びる脱衣室Ｂ側の縦シール部材２９が取り付けられている。そして、これら上シール部材１７、下シール部材２２および両縦シール部材２９，２９により、左右両扉体３ａ，３ｂと枠体２との間が四周に亘ってシールされている。
【００１９】
左右各扉体３ａ，３ｂは、アルミニウムの形材で構成された上框３１および下框３２に、縦框３３および連結縦框３４とを框組みすると共に、これに樹脂製のパネル体３６，３６を嵌め込んで構成されている。左扉体３ａの上下中間位置には、脱衣室Ｂ側に引手部３７が形成され、浴室Ａ側に引手を兼ねるタオル掛け３８が取り付けられている。各扉体３ａ，３ｂの下框３２には、室内外を連通する開閉機構付きの換気ガラリ３９が形成されている。また、左扉体３ａの連結縦框３４にはラッチ機構４０が、右扉体３ｂの連結縦框３４には閉塞ロック機構４１が組み込まれている。さらに、各扉体３ａ，３ｂの縦框３３には、後述する上スライダ４７ａを上ガイドレール１８から離脱させる離脱機構４２が組み込まれている。
【００２０】
各扉体３ａ，３ｂの下框３２には、その下端部の浴室Ａ側内面に、下ガイドレール１８に密接する下向きシール片４４，４４が取り付けられている。同様に、各縦框３３には、縦枠１３の縦枠中空部２５に密接する横向きシール片４５が取り付けられている。一方、各扉体３ａ，３ｂの縦框３３には、上下のピンヒンジ４６，４６を介して上スライダ４７ａおよび下スライダ４７ｂがそれぞれ取り付けられ、各扉体３ａ，３ｂはこの上スライダ４７ａおよび下スライダ４７ｂにより、上ガイドレール１８および下ガイドレール２３に、それぞれスライド自在に支持されている。ただし、右扉体３ｂの上下両スライダ４７ａ，４７ｂは、上下両ガイドレール１８，２３に固定されている。
【００２１】
これにより、折戸１は、左扉体３ａと右扉体３ｂとが枠体２の幅いっぱいに横に並んだ閉扉位置と、左扉体３ａに右扉体３ｂを重ねるように折り畳んだ開扉位置との間で、開閉される。すなわち、閉扉位置から引手部３７を斜め前方に押すことにより、左扉体３ａと右扉体３ｂが、それぞれピンヒンジ４６を中心に回動すると共に、右扉体３ｂの上下両スライダ４７ａ，４７ｂが上下両ガイドレール１８，２３に案内されて左側に移動し、同時に左扉体３ａと右扉体３ｂとが連結部材４の部分で折れ曲がって、左扉体３ａに右扉体３ｂが重なるように折り畳まれる（開放）。
【００２２】
次に、図４および図５を参照して、連結部材４廻りの構造について詳細に説明する。同図に示すように、左右の両扉体３ａ，３ｂの各連結縦框３４は、突合せ部５１の端面が開放されており、両連結縦框３４はこの開放部分が対向するように配設されている。そして、この突合せ部５１の内部間に亘ってこれらに収容されるように、上記の連結部材４が取り付けられている。
【００２３】
連結部材４は、両連結縦框３４，３４の突合せ部５１，５１間に内設され、連結縦框３４とほぼ同一長さを有する閉塞部材６と、閉塞部材６の長手方向の４箇所に装着した４つの軸受け部材７とで構成されている。４つの軸受け部材７のうち、中間部の２つの中間軸受け部材７ａ，７ａは、それぞれ単独で閉塞部材６の内面に装着され、上端部および下端部の上軸受け部材７ｂおよび下軸受け部材７ｃは、それぞれ閉塞部材６の上端部キャップ８ａおよび下端部キャップ８ｂに組み込まれた状態で、閉塞部材６の内面にそれぞれ装着されている（図１参照）。
【００２４】
一方、各連結縦框３４の突合せ部５１は、断面略「コ」字状に形成されており、浴室Ａ側の端部片５２ａの先端部は、閉塞部材６との間隙を狭くすべく内側に湾曲している。一方、脱衣室Ｂ側の端部片５２ｂの先端部には、上記の軸受け部材７に回動自在に軸支される折曲げ軸部５３が一体に形成されいる。折曲げ軸部５３は、円弧部位５３ａと平板部位５３ｂとで断面略「フ」字状に屈曲形成されており、後述する各軸受け部材７の軸受け部７５に内包され、折り曲げに伴う回動の際に、平板部位５３ｂの先端部５３ｃが回動支点となると共に、円弧部位５３ａの外面が軸受け部７５の内面に摺接する（詳細は後述する）。すなわち、この両折曲げ軸部５３と４つの軸受け部材７とにより、両扉体３ａ，３ｂのヒンジ機構が構成されている。
【００２５】
閉塞部材６は、突き合わせた連結縦框３４，３４間の間隙を閉塞するものであり、脱衣室Ｂ側中央が開放された断面略半円状の中空形状に形成されている。閉塞部材６の浴室Ａ側の半円部６１は、浴室Ａ側の端部片５２ａに間隙を存して対峙しており、折曲げ軸部５３を中心に回動する端部片５２ａの先端部の回動軌跡に合致している。また、閉塞部材６の脱衣室Ｂ側の一対の平坦部６２は、これに形成した小突起が脱衣室Ｂ側の端部片５２ｂの内側に当接して、両扉体３ａ，３ｂの逆折れを防止している。さらに、半円部６１の内側中間位置には、上下の端部キャップ８ａ，８ｂを取り付けるためのビスホール６３が突設されている。なお、２つの中間軸受け部材７ａ，７ａは、このビスホール６３をかしめて変形させることで、閉塞部材６の中間位置に取り付けられている。
【００２６】
各中間軸受け部材７ａは、図４および図６に示すように、断面方向において、外周面が閉塞部材６の内周面と相補的な形状に形成されており、閉塞部材６の小口からに挿入するようにして、これに取り付けられている。中間軸受け部材７ａは、受け部材本体７１と、受け部材本体７１から左側に突出する左受け部７２と、受け部材本体７１から右側に突出する右受け部７３とで一体に形成されている。左受け部７２と右受け部７３とは、受け部材本体７１に対し上下に位置ずれして配設され、また受け部材本体７１、左受け部７２および右受け部７３のそれぞれの上下両端部は面取りされていて、閉塞部材６の小口から容易に挿入できるようになっている。なお、中間軸受け部材７ａは、上下反転した形状が同一であり、上下を区別する必要のない形状に形成されている。
【００２７】
一方、受け部材本体７１には、両連結縦框３４，３４の折曲げ軸部５３，５３間に挿入されるスペーサ部７４が突設され、このスペーサ部７４の左右の外面と、スペーサ部７４にそれぞれ対峙するの左受け部７２および右受け部７３のＬ字部分との間に、断面略１／４円状の左右一対の軸受け部７５，７５が形成されている。各軸受け部７５には、折曲げ軸部５３の円弧部位５３ａに対応する円弧受け部位７５ａと、平板部位５３ｂの回動支点となる先端部５３ｃを受ける支点受け部位７５ｂとが形成されている。
【００２８】
次に、上端部キャップ８ａと下端部キャップ８ｂについて説明するが、両端部キャップ８ａ，８ｂは全く同一のものであり、ここでは、上端部キャップ８ａについてのみ説明し、下端部キャップ８ｂの説明は省略する。上端部キャップ８ａは、図５および図７に示すように、断面方向において、外周面が閉塞部材６の内周面と相補的な形状に形成された上軸受け部材７ｂと、閉塞部材６の小口形状と略同一の平面形状を有するキャップ部材９とで一体に形成（成形）されている。
【００２９】
キャップ部材９の浴室Ａ側の部位には下向きのスペーサ片８１が突設されており、このスペーサ片８１が、両連結縦框３４，３４の浴室Ａ側の端部片５２ａの先端間に挿入される。これにより、端部片５２ａ間の離間寸法が保持され、且つ両扉体３ａ，３ｂの逆折れが防止される。また、キャップ部材９の上面には、閉塞部材６のビスホール６３に螺合するビス用のざぐり穴８２が形成されている。
【００３０】
上軸受け部材７ｂは、上記の中間軸受け部材７ａと同様に、受け部材本体９１と、受け部材本体９１から左側に突出する左受け部９２と、受け部材本体９１から右側に突出する右受け部９３とで一体に形成され、且つこれらはキャップ部材９の裏面から下方に向かって延設されている。この場合、受け部材本体９１の延設寸法が最も長く、次いで左受け部９２、右受け部９３の順で短く形成されており、これらの下端部に形成した面取り部分と相まって、上軸受け部材７ｂを閉塞部材６の小口に容易に装着できるようになっている。
【００３１】
また、上軸受け部材７ｂには、上記の中間軸受け部材７ａと同様に、受け部材本体９１にスペーサ部９４が突設され、このスペーサ部９４の左右の外面と、左受け部９２および右受け部９３のＬ字部分との間に、断面略１／４円状の左右一対の軸受け部９５，９５が形成されている。そして、各軸受け部９５には、折曲げ軸部５３の円弧部位５３ａに対応する円弧受け部位９５ａと、回動支点となる先端部５３ｃを受ける支点受け部位９５ｂとが形成されている。
【００３２】
ここで、図８を参照して、中間軸受け部材７ａの部分を例に、両扉体３ａ，３ｂの開閉動作について説明する。同図（ａ）に示すように、両扉体３ａ，３ｂが閉塞している展開状態では、各連結縦框３４の折曲げ軸部５３の先端部５３ｃが、中間軸受け部材７ａの各支点受け部位７５ｂに当接し、且つ折曲げ軸部５３の円弧部位５３ａが、中間軸受け部材７ａの各円弧受け部位７５ａの浴室Ａ側端に接触している。この状態から同図（ｂ）に示すように、両扉体３ａ，３ｂが開放してゆくと、折曲げ軸部５３の先端部５３ｃを回動支点として、その円弧部位５３ａが中間軸受け部材７ａの円弧受け部位７５ａに案内され、摺動しながら円弧受け部位７５ａの脱衣室Ｂ側端に向かって移動してゆく。さらに同図（ｃ）に示すように、両扉体３ａ，３ｂが折り畳まれて完全に開放されると、折曲げ軸部５３の円弧部位５３ａが中間軸受け部材７ａの円弧受け部位７５ａの脱衣室Ｂ側端に達し、円弧部位５３ａと円弧受け部位７５ａとが全面的に接触する。
【００３３】
この状態では、閉塞部材６の半円部６１が浴室Ａ側に大きく露出すると共に、脱衣室Ｂ側の両端部片５２ｂ，５２ｂが中間軸受け部材７ａのスペーサ部７４を挟み込む。また、両扉体３ａ，３ｂを開放状態から閉塞する場合には、全く逆の手順となる。
【００３４】
次に、図９および図１０を参照して他の実施形態について説明する。図９の第２実施形態では、中間軸受け部材７ａの幅が閉塞部材６の脱衣室側の開口部６４の幅と略同一に形成され、且つ中間軸受け部材７ａの両側面に左右一対の抜止め突起７６，７６が形成されている。すなわち、中間軸受け部材７ａを閉塞部材６の小口ではなく、開口部６４を介して閉塞部材６の脱衣室Ｂ側正面からスナップイン形式で装着できるようになっている。
【００３５】
一方、閉塞部材６には、中間軸受け部材７ａのスペーサ部７４に沿って、ビスホール６３から支持片６５が延設されている。閉塞部材６の中間軸受け部材７ａを装着する部分では、この支持片６５が中間軸受け部材７ａの高さに相当する分、切り欠かれており、この切欠き部分に中間軸受け部材７ａが装着される。これにより、中間軸受け部材７ａは、閉塞部材６の上下方向の所定の位置に位置決めされた状態で、装着される。したがって、中間軸受け部材７ａを、閉塞部材６に簡単に組み込むことができる。なお、図中の符号９６は、端部キャップ８ａ，８ｂの軸受け部材７ｂ，７ｃに補強のために装着した補強板である。
【００３６】
図１０の第３実施形態では、中間軸受け部材７ａが上記の受け部材本体７１に相当する部分で構成されている。一方、閉塞部材６には、中間軸受け部材７ａを挟み込むように先端部内側に屈曲した一対のリブ片６６，６６が、浴室Ａ側から脱衣室Ｂ側に向かって延設されている。また、この閉塞部材６には平坦部６２がなく、この両リブ片６６，６６の端と半円部６１の端が脱衣室Ｂ側の端部片５２ｂの内面に当接している。
【００３７】
そして、この場合には、両リブ片６６，６６の屈曲部位６６ａを含む先端部と、中間軸受け部材７ａのスペーサ部７４の左右の外面との間に、断面略１／４円状の左右一対の軸受け部７５，７５が構成されている。そして、折曲げ軸部５３の円弧部位５３ａに対応する円弧受け部位７５ａは、中間軸受け部材７ａで構成されるているが、回動支点となる先端部５３ｃに対応する支点受け部位７５ｂは、各リブ片６６の屈曲部位６６ａで構成されている。なお、この場合も、中間軸受け部材７ａは、閉塞部材６をかしめることでこれに装着されている。また、端部キャップ８ａ，８ｂにおける軸受け部材７ｂ，７ｃには、強度アップのために左受け部９２および右受け部９３に相当する部材が、リブ片６６を挟み込むようにして設けられている。
【００３８】
以上のように、これらの実施形態によれば、上端部キャップ８ａおよび下端部キャップ８ｂに組み込んだ軸受け部材７ｂ，７ｃの他に、閉塞部材６の長手方向の中間部分に装着した中間軸受け部材７ａにより、両扉体３ａ，３ｂが連結されている。このため、両扉体３ａ，３ｂの連結強度が増し、両扉体３ａ，３ｂを開閉するときに、両連結縦框３４，３４が撓み難くなると共に、連結縦框３４，３４の突き合わせ端の離間距離が一定に保持され、両扉体３ａ，３ｂを円滑に開閉させることができる。また、軸受け部材７は、ピースもので構成されているため、長手方向における製造上の誤差の影響を排除することができ、この製造上の誤差に基づく両扉体３ａ，３ｂの開閉不良や、部材同士の無用な擦れを防止することができる。
【００３９】
また、両扉体３ａ，３ｂを開閉動作に伴って擦れ合う（摺動）、折曲げ軸部５３の円弧部位５３ａと軸受け部材７の円弧受け部位７５ａ，９５ａとは、それぞれ折曲げ軸部５３が金属（アルミニウム）で、軸受け部材７が樹脂で構成されているため、両者間の磨耗を極力抑制することができると共に、不快な擦れ音も有効に防止することができる。
【００４０】
なお、本実施形態では、浴室用の折戸について説明したが、勝手口折戸などの他の折戸にも適用できることは、いうまでもない。また、中間軸受け部材の数および位置は、実施形態に限定されるものではない。また、上下両軸受け部材を、端部キャップとは別体として、閉塞部材に装着するようにしてもよい。
【００４１】
【発明の効果】
以上のように本発明の折戸によれば、折曲げ軸部を回動自在に支持する軸受け部材が、ピースものとして、連結縦框の中間部にも設けられているため、両連結縦框の極端な撓みおよび離間が有効に防止され、且つ製造上の誤差による折曲げ軸部と軸受け部材との間の部分当たりも、極力少なくすることができる。したがって、簡単な構造で、扉体の開閉を円滑なものとすることができる。
【図面の簡単な説明】
【図１】本発明の一実施形態に係る折戸の姿図である。
【図２】実施形態に係る折戸の横断面図である。
【図３】実施形態に係る折戸の縦断面図である。
【図４】中間軸受け部材廻りの拡大横断面図である。
【図５】上端部キャップ廻りの拡大横断面図である。
【図６】中間軸受け部材の構造図である。
【図７】上軸受け部材を含む上端部キャップの構造図である。
【図８】折戸の開閉動作に関する軸受け部材廻りの動作説明図である。
【図９】第２実施形態に係る軸受け部材廻りの拡大横断面図である。
【図１０】第３実施形態に係る軸受け部材廻りの拡大横断面図である。
【符号の説明】
１折戸、３扉体、３ａ左扉体、３ｂ右扉体、４連結部材、６閉塞部材、７軸受け部材、７ａ中間軸受け部材、７ｂ上軸受け部材、７ｃ下軸受け部材、８ａ下端部キャップ、８ｂ上端部キャップ、３４連結縦框、５１突合せ部、５２ｂ端部片、５３折曲げ軸部、５３ａ円弧部位、５３ｃ先端部、６３ビスホール、６６リブ片、６６ａ屈曲部位、７５軸受け部、７５ａ円弧受け部位、７５ｂ支点受け部位、９５軸受け部、９５ａ円弧受け部位、９５ｂ支点受け部位、Ａ浴室、Ｂ脱衣室[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a folding door provided in, for example, a bathroom and having a pair of left and right doors foldably connected at a central portion.
[0002]
[Prior art]
In this type of conventional folding door, the connecting vertical frame of the two door bodies has an open end face of a butt portion, and a closing member is mounted between the butt portions so as to fill a gap between the two connecting vertical frames. . A bending shaft portion is integrally formed on an end piece on the undressing room side of each butting portion, and a pair of left and right bearing portions for rotatably supporting each bending shaft portion are provided on the closing member. The pair of bending shafts and the pair of bearings constitute a hinge mechanism for bending both doors.
In this case, the bending shaft is formed over the entire length of the connecting vertical frame, while the bearing is formed over the entire length of the closing member (for example, Japanese Patent Publication No. 60-49749). (See, for example, Utility Model Registration No. 2538824).
[0003]
[Problems to be solved by the invention]
In such a conventional folding door, in the former hinge structure (hinge mechanism), since the bending shaft portion and the bearing portion are in sliding contact with each other over the entire length, the connection strength is sufficient, but the longitudinal direction in the manufacturing is not sufficient. There were problems such as that the opening / closing of the folding door could not be smoothly opened and closed due to the shape accuracy, and that the bent shaft portion and the bearing portion were partially rubbed and damaged.
Further, in the latter hinge structure (hinge mechanism), there are few problems due to manufacturing errors as described above, but since both doors are pivotally supported only at the upper and lower ends, the connection strength is insufficient. When the folding door is opened and closed, the two connecting vertical frames are largely bent at the middle part and separated from each other, so that the smooth opening and closing of the folding door is impeded, or the outer peripheral surface of the closing member and the bathroom side end piece of the both connecting vertical frames are closed. There were problems such as rubbing and damage.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a folding door capable of absorbing a manufacturing error, preventing separation of the connecting vertical frames during opening and closing, and enabling smooth opening and closing.
[0005]
[Means for Solving the Problems]
Orito of the present invention, a hinge mechanism which is disposed the door of the left and right that with the match-coupled vertical frame together across between the connecting stile with bent connecting freely, the gap between the two joining stile a closure member which is disposed across between the connecting stile so as to close, in Orito with hinge mechanism has at least upper end portions of the connecting stile, are respectively disposed at a lower end portion and the intermediate portion, and each of And a plurality of bearing members which are inserted and attached to the inside of the closing member from the fore edge thereof, and a bending shaft portion which is formed on one end piece of each of the connecting vertical frames and is rotatably supported by each bearing member. And each bearing member comprises a receiving member main body located at the left and right middle of the finding direction, a left receiving portion protruding leftward from the receiving member main body, and a right receiving portion protruding rightward from the receiving member main body. , The left receiving part and the right receiving part are receiving members. Characterized in that across the body at a position displaced from each other in the vertical direction are disposed.
[0006]
According to this configuration, the bearing member rotatably supporting the bending shaft portion formed on the end piece of the connecting vertical stile is provided as a piece, in addition to the upper end portion and the lower end portion of the connecting vertical stile, at the middle portion. Also, the connection strength between the connecting vertical frames is increased, and the extreme bending and separation of the connecting vertical frames are effectively prevented. Further, since the bearing member is a piece, it is possible to minimize the contact between the bent shaft portion and the bearing member due to a manufacturing error. In addition, the above-mentioned "at least" means that one or more bearing members are provided in the intermediate portion.
In opening and closing the two doors, the bearing member is hidden inside the closing member and is not exposed to the outside. Furthermore, the bearing member located at the intermediate portion can be locked to the closing member by caulking or the like.
[0007]
In this case, it is preferable that the receiving portion main body is formed to be longer in the vertical direction than the left receiving portion and the right receiving portion, and the end on the insertion side protrudes .
[0009]
In this case, each bending shaft portion has a fulcrum portion serving as a fulcrum of rotation and an arc portion connected to the fulcrum portion, and the bearing member has a pair of left and right fulcrum receiving portions for receiving each fulcrum portion, and each arc. It is preferable to have a pair of left and right arc receiving portions that receive the portion slidably. Similarly, each bending shaft portion has a fulcrum portion serving as a fulcrum of rotation and an arc portion connected to the fulcrum portion, and the closing member has a pair of left and right fulcrum receiving portions for receiving each fulcrum portion. It is preferable that the bearing member has a pair of left and right arc receiving portions that slidably receive the respective arc portions.
[0010]
According to this configuration, the fulcrum portion rotates with respect to the fulcrum receiving portion, and the arc portion slides with respect to the arc receiving portion, whereby both door bodies are bent. Therefore, the hinge mechanism can be configured without using a shaft and a bearing having a circular cross section.
[0011]
In these cases, the bearing member provided at the upper end of the closing member is incorporated into an end cap attached to the upper or lower end of the closing member, and the bearing member provided at the lower end of the closing member is provided with a closing member. Preferably, it is incorporated into an end cap attached to the lower fore end.
[0012]
According to this configuration, the bearing member can be easily assembled to the closing member by mounting the end cap on the closing member by incorporating the bearing member into the upper and lower end caps. In addition, the end caps can prevent vertical displacement of both connecting vertical frames.
[0013]
In these cases, it is preferable that each connecting vertical frame is made of a metal profile, and each bearing member is made of a resin.
[0014]
According to this configuration, since the sliding surface between the arc portion of the connecting vertical frame and the arc receiving portion of the bearing member that come into contact with each other comes into contact with the metal and the resin, the rubbing sound is hard to be mutually damaged and harsh. Is effectively prevented.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a case where the folding door according to an embodiment of the present invention is applied to a middle folding door in a bathroom will be described with reference to the accompanying drawings. As shown in the figure of FIG. 1, the transverse sectional view of FIG. 2, and the longitudinal sectional view of FIG. 3, this folding door 1 is obtained by incorporating a door body 3 including a left door body 3a and a right door body 3b into a frame body 2. The left door body 3a and the right door body 3b are connected to each other via a connecting member 4 so as to be freely bent. In this case, the folding door 1 is opened by the left and right doors 3a, 3b being folded into the bathroom A side, and the left and right doors 3a, 3b are deployed to the undressing room B side from the folded state. Close.
[0016]
The frame 2 includes an upper frame 11, a lower frame 12, and both vertical frames 13, 13 made of an aluminum profile, and is attached to an opening of the bathroom A. The upper frame 11 has an upper frame hollow part 15 and an upper frame parting piece 16 extending from the upper frame hollow part 15 to the undressing room B side in an “L” shape. An upper seal member 17 extending toward the door body 3 is attached. An upper guide rail 18 is provided on the lower surface of the upper frame hollow portion 15 so as to project the opening and closing of the doors 3a and 3b.
[0017]
Similarly, the lower frame 12 has a lower frame hollow part 20 and a lower frame parting piece 21 extending from the lower frame hollow part 20 to the undressing room B side in an inverted “L” shape. A lower seal member 22 extending toward the door body 3 is attached to the upper part. On the upper surface of the lower frame hollow portion 20, a lower guide rail 23 for guiding the opening and closing of the doors 3a, 3b is protrudingly provided.
[0018]
Each of the vertical frames 13 on the left and right includes a vertical frame hollow portion 25, a vertical frame parting piece 26 extending in the expected direction from the vertical frame hollow portion 25, a seal mounting piece 27 and a wall receiving piece extending from the vertical frame hollow portion 25 in the finding direction. 28. A vertical seal member 29 on the undressing room B side extending toward the door body 3 is attached to the seal attachment piece 27. The upper seal member 17, the lower seal member 22, and the two vertical seal members 29, 29 seal the space between the left and right door bodies 3a, 3b and the frame 2 over four circumferences.
[0019]
The left and right doors 3a and 3b are framed with a vertical frame 33 and a connecting vertical frame 34 on an upper frame 31 and a lower frame 32 made of an aluminum material, and a resin panel body 36, 36 is fitted. At the upper and lower middle position of the left door body 3a, a pulling portion 37 is formed on the undressing room B side, and a towel rail 38 also serving as a puller is mounted on the bathroom A side. The lower frame 32 of each of the doors 3a and 3b is provided with a ventilation gallery 39 having an opening / closing mechanism for communicating between the inside and outside of the room. A latch mechanism 40 is incorporated in the connecting vertical frame 34 of the left door body 3a, and a closing lock mechanism 41 is incorporated in the connecting vertical frame 34 of the right door body 3b. Further, the vertical frame 33 of each of the doors 3a, 3b incorporates a detachment mechanism 42 for detaching an upper slider 47a described later from the upper guide rail 18.
[0020]
On the lower frame 32 of each of the doors 3a, 3b, downward facing sealing pieces 44, 44 which are in close contact with the lower guide rail 18 are attached to the inner surface on the bathroom A side at the lower end. Similarly, each vertical frame 33 is provided with a horizontal seal piece 45 that is in close contact with the vertical frame hollow portion 25 of the vertical frame 13. On the other hand, an upper slider 47a and a lower slider 47b are attached to the vertical frame 33 of each of the doors 3a, 3b via upper and lower pin hinges 46, 46, respectively, and each of the doors 3a, 3b is connected to the upper slider 47a and the lower slider 47. 47b slidably supports the upper guide rail 18 and the lower guide rail 23, respectively. However, the upper and lower sliders 47a, 47b of the right door 3b are fixed to the upper and lower guide rails 18, 23.
[0021]
Thereby, the folding door 1 is a closed door position where the left door body 3a and the right door body 3b are arranged side by side over the entire width of the frame body 2, and an open door which is folded so that the right door body 3b is overlapped on the left door body 3a. It is opened and closed between positions. That is, by pushing the pull portion 37 obliquely forward from the closed position, the left door 3a and the right door 3b rotate around the pin hinge 46, respectively, and the upper and lower sliders 47a, 47b of the right door 3b are moved. It is guided by the upper and lower guide rails 18 and 23 and moves to the left, and at the same time, the left door 3a and the right door 3b are bent at the connecting member 4 so that the right door 3b overlaps the left door 3a. Folded (open).
[0022]
Next, the structure around the connecting member 4 will be described in detail with reference to FIGS. As shown in the figure, the connecting vertical frames 34 of the left and right doors 3a and 3b have an end face of the abutting portion 51, and the connecting vertical frames 34 are disposed so that the open portions thereof face each other. Have been. The connecting member 4 is attached so as to be accommodated in the butting portion 51 between the insides thereof.
[0023]
The connecting member 4 is provided between the abutting portions 51 of the connecting vertical frames 34, 34, and has a closing member 6 having substantially the same length as the connecting vertical frame 34, and at four locations in the longitudinal direction of the closing member 6. It comprises four bearing members 7 mounted. Of the four bearing members 7, the two intermediate bearing members 7a, 7a in the middle part are independently mounted on the inner surface of the closing member 6, and the upper bearing member 7b and the lower bearing member 7c of the upper and lower ends are Each of them is mounted on the inner surface of the closing member 6 in a state of being incorporated in the upper end cap 8a and the lower end cap 8b of the closing member 6 (see FIG. 1).
[0024]
On the other hand, the butting portion 51 of each connecting vertical frame 34 is formed in a substantially U-shaped cross section, and the front end of the end piece 52a on the bathroom A side is formed inside in order to narrow the gap with the closing member 6. It is curved. On the other hand, a bending shaft portion 53 rotatably supported by the bearing member 7 is integrally formed at the tip of the end piece 52b on the undressing room B side. The bending shaft portion 53 is bent and formed in a substantially “F” -shaped cross section at the arc portion 53 a and the flat plate portion 53 b, and is included in a bearing portion 75 of each bearing member 7 described below, and is rotated by bending. At this time, the tip 53c of the flat plate portion 53b serves as a rotation fulcrum, and the outer surface of the arc portion 53a slides on the inner surface of the bearing 75 (details will be described later). In other words, the hinge mechanism of the doors 3a and 3b is constituted by the two bent shaft portions 53 and the four bearing members 7.
[0025]
The closing member 6 closes a gap between the connected vertical stiles 34, 34, and is formed in a hollow shape having a substantially semicircular cross section with an opening at the center on the undressing room B side. The semicircular portion 61 on the bathroom A side of the closing member 6 faces the end piece 52a on the bathroom A side with a gap, and the tip of the end piece 52a that rotates about the bending shaft 53 is provided. It matches the turning locus of the part. A pair of flat portions 62 of the closing member 6 on the undressing room B side have small projections formed thereon abutting on the inside of the end piece 52b on the undressing room B side, and the two door bodies 3a, 3b are reversely folded. Has been prevented. Further, a screw hole 63 for attaching the upper and lower end caps 8a and 8b is protruded at an intermediate position inside the semicircular portion 61. The two intermediate bearing members 7a, 7a are attached to the intermediate position of the closing member 6 by caulking and deforming the screw holes 63.
[0026]
As shown in FIGS. 4 and 6, the outer peripheral surface of each intermediate bearing member 7a is formed in a shape complementary to the inner peripheral surface of the closing member 6 in the cross-sectional direction. So that it is attached to it. The intermediate bearing member 7a is integrally formed with a receiving member main body 71, a left receiving portion 72 protruding leftward from the receiving member main body 71, and a right receiving portion 73 protruding rightward from the receiving member main body 71. The left receiving portion 72 and the right receiving portion 73 are vertically displaced with respect to the receiving member main body 71, and both upper and lower ends of the receiving member main body 71, the left receiving portion 72, and the right receiving portion 73 are It is chamfered so that it can be easily inserted from the edge of the closing member 6. The intermediate bearing member 7a has the same inverted shape, and is formed in a shape that does not need to be distinguished from the upper and lower sides.
[0027]
On the other hand, the receiving member main body 71 is provided with a spacer portion 74 that is inserted between the bending shaft portions 53 of the connecting vertical frames 34, 34, and the left and right outer surfaces of the spacer portion 74 and the spacer portion 74 are provided. A pair of left and right bearings 75, 75 each having a substantially quarter-circular cross section are formed between the left receiving portion 72 and the L-shaped portion of the right receiving portion 73 that face each other. Each bearing portion 75 is formed with an arc receiving portion 75a corresponding to the arc portion 53a of the bending shaft portion 53, and a fulcrum receiving portion 75b for receiving a tip 53c serving as a rotation fulcrum of the flat plate portion 53b.
[0028]
Next, the upper end cap 8a and the lower end cap 8b will be described. Both end caps 8a and 8b are exactly the same, and only the upper end cap 8a will be described here, and the lower end cap 8b will be described. Omitted. 5 and 7, the upper end cap 8a has an upper bearing member 7b having an outer peripheral surface formed in a shape complementary to an inner peripheral surface of the closing member 6 in a cross-sectional direction, and a small opening of the closing member 6. It is integrally formed (molded) with the cap member 9 having the same planar shape as the shape.
[0029]
A downwardly facing spacer piece 81 is projected from a portion of the cap member 9 on the bathroom A side, and the spacer piece 81 is inserted between the front ends of the end pieces 52a on the bathroom A side of both of the connecting vertical frames 34, 34. Is done. As a result, the distance between the end pieces 52a is maintained, and the two doors 3a, 3b are prevented from being reversely bent. In addition, a counterbore hole 82 for a screw that is screwed into the screw hole 63 of the closing member 6 is formed on the upper surface of the cap member 9.
[0030]
The upper bearing member 7b includes a receiving member main body 91, a left receiving portion 92 protruding leftward from the receiving member main body 91, and a right receiving portion 93 protruding rightward from the receiving member main body 91, similarly to the above-described intermediate bearing member 7a. And these are extended downward from the back surface of the cap member 9. In this case, the extension length of the receiving member main body 91 is the longest, and then the left receiving portion 92 and the right receiving portion 93 are formed short in this order, and in combination with the chamfered portions formed at the lower ends thereof, the upper bearing member 7b Can be easily attached to the fore-edge of the closing member 6.
[0031]
Similarly to the above-described intermediate bearing member 7a, the upper bearing member 7b is provided with a spacer portion 94 protruding from the receiving member main body 91, and the left and right outer surfaces of the spacer portion 94, the left receiving portion 92 and the right receiving portion. A pair of left and right bearings 95, 95 having a substantially 1/4 circular cross section are formed between the L-shaped portion 93 and the L-shaped portion. Each of the bearing portions 95 is formed with an arc receiving portion 95a corresponding to the arc portion 53a of the bending shaft portion 53 and a fulcrum receiving portion 95b for receiving the tip 53c serving as a rotation fulcrum.
[0032]
Here, with reference to FIG. 8, the opening / closing operation of both doors 3a, 3b will be described using the portion of the intermediate bearing member 7a as an example. As shown in FIG. 3A, in the unfolded state in which both doors 3a and 3b are closed, the front end 53c of the bent shaft 53 of each connecting vertical frame 34 is connected to each fulcrum bearing of the intermediate bearing member 7a. The arc portion 53a of the bent shaft portion 53 is in contact with the portion 75b, and is in contact with the bathroom A side end of each arc receiving portion 75a of the intermediate bearing member 7a. As shown in FIG. 6B, when the doors 3a and 3b are opened from this state, the arc portion 53a is turned to the intermediate bearing member 7a with the tip 53c of the bending shaft 53 as a pivot point. Is moved toward the end of the arc receiving portion 75a on the undressing room B side while sliding. Further, as shown in FIG. 3C, when the doors 3a and 3b are folded and completely opened, the arc portion 53a of the bent shaft portion 53 is changed to the dressing room of the arc receiving portion 75a of the intermediate bearing member 7a. Reaching the end on the B side, the arc portion 53a and the arc receiving portion 75a come into full contact.
[0033]
In this state, the semicircular portion 61 of the closing member 6 is largely exposed to the bathroom A side, and both end pieces 52b, 52b of the undressing room B side sandwich the spacer portion 74 of the intermediate bearing member 7a. When closing both doors 3a and 3b from the open state, the procedure is completely reversed.
[0034]
Next, another embodiment will be described with reference to FIGS. In the second embodiment of FIG. 9, the width of the intermediate bearing member 7a is formed to be substantially the same as the width of the opening 64 of the closing member 6 on the undressing room side, and a pair of left and right stoppers is provided on both side surfaces of the intermediate bearing member 7a. Projections 76, 76 are formed. That is, the intermediate bearing member 7a can be mounted in a snap-in manner from the front of the closing member 6 on the undressing room B side via the opening 64 instead of the small opening of the closing member 6.
[0035]
On the other hand, a support piece 65 extends from the screw hole 63 along the spacer portion 74 of the intermediate bearing member 7a in the closing member 6. In a portion of the closing member 6 where the intermediate bearing member 7a is mounted, the support piece 65 is cut out by an amount corresponding to the height of the intermediate bearing member 7a, and the intermediate bearing member 7a is mounted in this cutout portion. . Thus, the intermediate bearing member 7a is mounted in a state where the intermediate bearing member 7a is positioned at a predetermined position in the vertical direction of the closing member 6. Therefore, the intermediate bearing member 7a can be easily incorporated into the closing member 6. Reference numeral 96 in the drawing denotes a reinforcing plate mounted on the bearing members 7b, 7c of the end caps 8a, 8b for reinforcement.
[0036]
In the third embodiment shown in FIG. 10, the intermediate bearing member 7a is configured by a portion corresponding to the above-described receiving member main body 71. On the other hand, in the closing member 6, a pair of rib pieces 66, 66 which are bent inward so as to sandwich the intermediate bearing member 7a, extend from the bathroom A side to the undressing room B side. The closing member 6 does not have a flat portion 62, and the ends of the rib pieces 66, 66 and the end of the semicircular portion 61 are in contact with the inner surface of the end piece 52b on the undressing room B side.
[0037]
In this case, a pair of left and right, approximately 1/4 circular cross sections, is provided between the front end of the rib pieces 66, 66 including the bent portion 66a and the left and right outer surfaces of the spacer 74 of the intermediate bearing member 7a. Are configured. The arc receiving portion 75a corresponding to the arc portion 53a of the bending shaft portion 53 is constituted by the intermediate bearing member 7a, but the fulcrum receiving portion 75b corresponding to the tip portion 53c serving as a rotation fulcrum is The rib 66 has a bent portion 66a. Also in this case, the intermediate bearing member 7a is attached to the closing member 6 by swaging. In addition, members corresponding to the left receiving portion 92 and the right receiving portion 93 are provided on the bearing members 7b and 7c of the end caps 8a and 8b so as to sandwich the rib piece 66 for increasing the strength.
[0038]
As described above, according to these embodiments, in addition to the bearing members 7b and 7c incorporated in the upper end cap 8a and the lower end cap 8b, the intermediate bearing member 7a attached to the intermediate portion in the longitudinal direction of the closing member 6 , The two door bodies 3a, 3b are connected. For this reason, the connecting strength of the doors 3a, 3b increases, and when opening and closing the doors 3a, 3b, the connecting vertical frames 34, 34 are less likely to bend, and the abutting ends of the connecting vertical frames 34, 34 are closed. The distance is kept constant, and both doors 3a, 3b can be smoothly opened and closed. In addition, since the bearing member 7 is made of a piece, it is possible to eliminate the influence of a manufacturing error in the longitudinal direction, and to make it difficult to open or close the doors 3a and 3b based on the manufacturing error. Unnecessary rubbing between members can be prevented.
[0039]
When the doors 3a and 3b rub (slide) with each other in accordance with the opening / closing operation, the bending shaft portion 53a of the bending shaft portion 53 and the arc receiving portions 75a and 95a of the bearing member 7 are separated from each other. Since the bearing member 7 is made of resin with metal (aluminum), wear between them can be suppressed as much as possible, and unpleasant rubbing noise can be effectively prevented.
[0040]
In the present embodiment, a folding door for a bathroom has been described, but it is needless to say that the present invention can be applied to other folding doors such as a self-opening folding door. Further, the number and position of the intermediate bearing members are not limited to the embodiment. Further, the upper and lower bearing members may be attached to the closing member separately from the end cap.
[0041]
【The invention's effect】
As described above, according to the folding door of the present invention, the bearing member for rotatably supporting the bending shaft portion is also provided as a piece at the intermediate portion of the connecting vertical frame, so that both connecting vertical frames are provided. Extreme bending and separation can be effectively prevented, and the contact between the bending shaft and the bearing member due to manufacturing errors can be minimized. Therefore, the door can be smoothly opened and closed with a simple structure.
[Brief description of the drawings]
FIG. 1 is a view showing a folding door according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the folding door according to the embodiment.
FIG. 3 is a longitudinal sectional view of the folding door according to the embodiment.
FIG. 4 is an enlarged cross-sectional view around an intermediate bearing member.
FIG. 5 is an enlarged cross-sectional view around the upper end cap.
FIG. 6 is a structural view of an intermediate bearing member.
FIG. 7 is a structural diagram of an upper end cap including an upper bearing member.
FIG. 8 is an operation explanatory view around a bearing member regarding the opening / closing operation of the folding door.
FIG. 9 is an enlarged cross-sectional view around a bearing member according to a second embodiment.
FIG. 10 is an enlarged cross-sectional view around a bearing member according to a third embodiment.
[Explanation of symbols]
1 folding door, 3 door body, 3a left door body, 3b right door body, 4 connecting member, 6 closing member, 7 bearing member, 7a intermediate bearing member, 7b upper bearing member, 7c lower bearing member, 8a lower end cap, 8b Upper end cap, 34 connecting vertical frame, 51 butting part, 52b end piece, 53 bending shaft part, 53a arc part, 53c tip part, 63 screw hole, 66 rib piece, 66a bending part, 75 bearing part, 75a arc receiver Part, 75b fulcrum receiving part, 95 bearing part, 95a arc receiving part, 95b fulcrum receiving part, A bathroom, B undressing room

Claims

A hinge mechanism which is disposed the door of the left and right that with the match-coupled vertical frame together across between the two joining stile as well as bent freely linked, so as to close the gap between the two joining stile A closing member disposed between the two connecting vertical frames, and a folding door having :
The hinge mechanism has at least upper end portions of the two joining stile, are respectively disposed at a lower end portion and the intermediate portion, and a plurality of bearing members and each of which is inserted and fitted from the small to the inside of the closure member,
A bending shaft portion formed on one end piece of each of the two connecting vertical frames and rotatably supported by each of the bearing members ,
Each of the bearing members includes a receiving member main body located in the middle in the left and right direction of the finding direction, a left receiving portion protruding leftward from the receiving member main body, and a right receiving portion protruding rightward from the receiving member main body,
The folding door, wherein the left receiving portion and the right receiving portion are arranged so as to be vertically displaced from each other across the receiving member body .

2. The folding door according to claim 1 , wherein the receiving portion main body is formed to be longer in the up-down direction and an insertion-side end protrudes from the left receiving portion and the right receiving portion . 3.

Each bending shaft portion has a fulcrum portion serving as a fulcrum of rotation, and an arc portion connected to the fulcrum portion,
The said bearing member has a pair of left and right fulcrum receiving parts which receive each said fulcrum part, and a pair of left and right arc receiving parts which receive each said arc part slidably, The Claim 1 or Claim 2 characterized by the above-mentioned. 2. Orito according to 2 .

Each bending shaft portion has a fulcrum portion serving as a fulcrum of rotation, and an arc portion connected to the fulcrum portion,
The closing member has a pair of left and right fulcrum receiving portions that receive the fulcrum portions,
3. The folding door according to claim 1 , wherein the bearing member includes a pair of left and right circular arc receiving portions that slidably receive the respective circular arc portions. 4.

The bearing member disposed at the upper end of the closing member is incorporated into an end cap attached to the upper or lower end of the closing member,
The said bearing member arrange | positioned at the lower end part of the said closing member is built in the end cap attached to the lower edge end of the said closing member, The Claim in any one of Claims 1-4 characterized by the above-mentioned. Orito.

Each of the connecting vertical frames is made of a metal profile,
The folding door according to any one of claims 1 to 5, wherein each of the bearing members is made of a resin.