JP3708820B2 - Folding door bracket - Google Patents

Description

【０００１】
【発明の属する技術分野】
本発明は、枠に折戸の端部を移動可能に且つ回動可能に取付けるための折戸用金具に関する。
【０００２】
【従来の技術】
折戸装置は、戸が開放時に折り畳まれるもので、例えばクロゼットの戸や部屋の間仕切り戸として多く用いられている。
この折戸装置には、インセット形とアウトセット形とがあり、このうち、インセット形は、図１８に示すように、折戸１が枠２の中に収まっている形式のものであり、アウトセット形は、図１９に示すように、折戸１１が枠１２の外側前方（図中、下側）に取付いている形式のものである。
【０００３】
しかして、図２０は、そのうちのアウトセット形の折戸装置に従来用いられている金具１３を示している。この金具１３は、枠１２に折戸１１の左右上下の端部１１ａを移動可能に且つ回動可能に取付けるためのものであって、それぞれ、戸側金具１４と、これとは別体の枠側金具１５、及びこれらの両金具１４，１５を回動可能に連結した連結機構１６から成っている。
なお、折戸１１は、２枚の戸板１１ｂを複数個の蝶番１１ｃで折り畳み及び展開可能に連結して成る。
【０００４】
金具１３の戸側金具１４は、詳細には図２１に示すように、折戸１１の端部１１ａの裏側に形成した穴１７に筒部１８を挿入して、その上下部でフランジ部１９を折戸１１の端部１１ａにねじ２０によって取付けるようになっている。
これに対して、枠側金具１５は、枠１２の上辺部（鴨居部分）に対するものが横軸回転する吊り車２１（図２０参照）を有し、一方、枠１２の下辺部（敷居部分）に対するものが縦軸回転するローラ２２を有していて、そのうちの吊り車２１が枠１２の上辺部に設けられたレール２３に転動可能に収納され、ローラ２２が枠１２の下辺部に設けられたレール２４に同じく転動可能に収納されるようになっている。
【０００５】
そして、連結機構１６は、図２２に示すように、基体２５に２枚の連結板２６，２７の基端部を軸ピン２８，２９により回動可能に連結して、これら２枚の連結板２６，２７の先端部を軸ピン３０，３１により上記戸側金具１４の筒部１８の周側部に回動可能に連結したもので、基体２５には更に切欠溝３２を有し、この切欠溝３２を、図２１に示すように、枠側金具１５に仮螺挿したねじ３３に嵌合して、最適のスライド調整位置でねじ３３を締めることにより、枠側金具１５に取付けられるようになっている。
【０００６】
ここで、実際の取付けに際しては、折戸１１の端部１１ａに戸側金具１４を取付けて置き、一方、レール２３，２４に枠側金具１５のローラ２２、吊り車２１を収納して置いて、この枠側金具１５にそれぞれ上記切欠溝３２とねじ３３とで戸側金具１４を取付けるようになっている（図２３参照）。
【０００７】
取付け後、折戸１１を、これの前記蝶番１１ｃによる連結部分近くの前面部に設けた取手１１ｄ（図１９参照）を持って手前に引けば、枠側金具１５が吊り車２１とローラ２２とによりそれぞれレール２３，２４に沿って移動し、同時に、戸側金具１４が連結機構１６により基体２５から、ひいては枠側金具１５から回動して折戸１１を回動させることにより、該折戸１１を前方へ折り畳むようになっている。
【０００８】
しかして、上記構成のものの場合、折戸１１には、金具１３の筒部１８を挿入する穴１７を形成するに際して、強度上の必要から、その穴１７と折戸１１の端面との間に、図２１に示す寸法Ｌの余裕を持たせなければならない。このため、金具１３の戸側金具１４は、折戸１１の端面から寸法Ｌだけ離して取付けられることになり、このままでは、折戸１１を開放させたときに、折戸１１の端面部分１１ｅが枠１２側に変位して該枠１２に衝接してしまい、折戸１１の開放ができなくなってしまう。
【０００９】
そこで、金具１３の戸側金具１４は枠側金具１５に連結機構１６によって連結されているのであり、連結機構１６は、上述の、基体２５に２枚の連結板２６，２７の基端部を軸ピン２８，２９により回動可能に連結し、この連結板２６，２７の先端部を軸ピン３０，３１により戸側金具１４の筒部１８の側部に回動可能に連結した構成にて、折戸１１の開放時には、図２２に二点鎖線で示すように、戸側金具１４を単に回動させるだけなく、前方（図２２中、左側）に押し出しもし、これによって、折戸１１の端面部分１１ｅが枠１２に衝接するのを避け、折戸１１の開放が存分にできるようになっている。
【００１０】
【発明が解決しようとする課題】
上記従来のものにおいては、折戸１１の上部に吊り車２１が設けられ、下部にローラ２２が設けられている。このうち、吊り車２１は、折戸１１をレール２３に吊って転動するものであり、従って、折戸１１の重量を受けるものである。一方、ローラ２２は、吊り車２１の転動に伴ってレール２４を転動するだけのものであり、折戸１１の移動案内に供する被ガイド部材として機能するだけのものである。この関係上、ローラ２２は、レール２４内をこれの底面から離間して（宙に浮いて）転動するようになっている。
【００１１】
このものの場合、レール２３に吊り車２１で吊り下げられた折戸１１の重量が枠１２の上辺部（鴨居の部分）にかかって、該部が下がり気味となることから、レール２３が下方にたわみ、該レール２３に沿った吊り車２１の動きが悪くなって、折戸１１の開閉がスムーズにできなくなりやすかった。
【００１２】
又、枠１２への折戸１１の取付けに関しては、前述のように、レール２３，２４に枠側金具１５の吊り車２１、ローラ２２をあらかじめ収納して置き、又、折戸１１の端部１１ａに戸側金具１４をあらかじめ取付けて置いて、その後に枠側金具１５に戸側金具１４を取付けるようになっており、その折り、折戸１１を作業者の１人又は複数人が浮かし持って、他の作業者が枠側金具１５に対する戸側金具１４の取付けを行う必要があり、作業が困難であった。
【００１４】
本発明は上述の事情に鑑みてなされたものであり、従ってその目的は、折戸の開閉がスムーズにできる折戸用金具を提供し、併せて、枠への折戸の取付けが容易にできると共に、状態の安定保持に効果のある折戸用金具を提供するにある。
【００１５】
【課題を解決するための手段】
上記目的を達成するために、本発明の折戸用金具は、枠に折戸の端部を移動可能に且つ回動可能に取付けるためのものにあって、第１に、折戸に取付けられる戸側金具と、この戸側金具に回動可能に連結された枠側金具とを具備し、その枠側金具が、枠の下辺部に対しては、該枠の下辺部に設けられた軌条部上を折戸の荷重を受けつつ転動する戸車を有し、枠の上辺部に対しては、該枠の上辺部に設けられた下面全開形の軌条部に移動可能に嵌合される被ガイド部材を有するようにすると共に、その被ガイド部材又は前記枠上辺部の軌条部側に、それらの嵌合状態で取付けられて、その軌条部に沿った被ガイド部材の移動を許容しつつ該被ガイド部材を軌条部との嵌合状態に保持する保持手段を設けたことを特徴とする（請求項１の発明）。
【００１６】
このものによれば、折戸は、従来のような吊り下げ形でなく、戸車による下方からの持ち上げ形で開閉されるようになる。このため、枠の上辺部には折戸の重量がかからず、該枠の上辺部が下がり気味となることがなくなるから、折戸の開閉がスムーズにできるようになる。
【００１７】
又、枠に対する折戸の取付けに関しては、戸車を取付けた折戸用金具を折戸の下部に取付け、被ガイド部材を取付けた折戸用金具を折戸の上部に取付けた上で、この状態の被ガイド部材を枠上辺部の軌条部に組み付け、戸車を枠下辺部の軌条部に組み付けることが可能である。
そして、上記枠上辺部の軌条部は下面全開形であり、これに嵌合された被ガイド部材が、折戸の折り畳み状態又はそれに近い状態では、軌条部に沿った移動で該軌条部から脱離することが懸念されるものの、それを保持手段にて嵌合状態に保持でき、脱離を防止できる。
【００２２】
【発明の実施の形態】
以下、本発明の第１実施例につき、図１ないし図８を参照して説明する。
まず図１には、アウトセット形の折戸装置４１を示しており、折戸４２を枠４３の外側前方（図中、左側）に取付けている。この枠４３に対する折戸４２の取付けには、上部で金具４４が供し、下部で金具４５が供しており、そのうちの上部の折戸用金具４４は、戸側金具４６と、これとは別体の枠側金具４７、及びそれらを回動可能に連結した連結部材４８から成っている。又、下部の折戸用金具４５も、戸側金具４９と、これとは別体の枠側金具５０、及びそれらを回動可能に連結した連結部材５１から成っている。
【００２３】
このうち、上部の折戸用金具４４の戸側金具４６は、図２に示すように、金属板を逆Ｌ字状に折曲して成るものであり、連結部であるこれの横板部４６ａの隅部に連結孔としてねじ孔５２を形成している。又、この戸側金具４６の取付部である縦板部４６ｂには、複数の取付孔５３を形成している。
【００２４】
これに対して、枠側金具４７は、金属板を逆Ｌ字状に折曲して、更にその下部をＬ字状に折曲したものであり、連結部であるこれの上横板部４７ａの隅部に連結孔５４を形成している。又、この枠側金具４７の取付部である下横板部４７ｂには、前後（図中、左右）に長い２つの長孔５５を形成している。
【００２５】
そして、連結部材４８は段付ねじから成っており、戸側金具４６の横板部４６ａの上に枠側金具４７の上横板部４７ａを重ねた上で、この連結部材４８を連結孔５４からねじ孔５２に螺挿して締付けることにより、戸側金具４６と枠側金具４７とを、該連結部材４８を中心としての回動可能に連結している。なお、連結部材４８は段付ねじに代えてリベットとしても良い。
【００２６】
しかして、上部の折戸用金具４４には、被ガイド部材５６を取付けている。この被ガイド部材５６は、プラスチック製又は金属製にて、上部に凸部５７を有する直方体状のブロックから成っており、下側と後側とにそれぞれ２つのねじ穴５８，５９を形成している。この構成で、被ガイド部材５６を上部の折戸用金具４４の枠側金具４７の下横板部４７ｂに載置し、その上で、下方から２本のねじ６０をそれぞれ長孔５５に通しねじ穴５８に螺挿して締め付けることにより、被ガイド部材５６を上部の折戸用金具４４の枠側金具４７の下横板部４７ｂ上に取付けている。
【００２７】
又、被ガイド部材５６には、図３に示す保持板６１を取付けるようにしている。この保持板６１は、プラスチック製又は金属製にて、矩形状を成し、その前側（図中、左側）の上部には左右に長い溝６２を形成し、その下方部に上下に長い２つの長孔６３を形成している。この構成で、保持板６１を被ガイド部材５６の後面（図中、右側面）に宛てがい、その上で、後方（図中、右側方）から２本のねじ６４をそれぞれ長孔６３に通し被ガイド部材５６のねじ穴５９に螺挿して締め付けることにより、保持板６１を被ガイド部材５６の後面に取付けるようにしている。
【００２８】
一方、下部の折戸用金具４５の戸側金具４９は、図４に示すように、金属板をＬ字状に折曲して成るものであり、連結部であるこれの横板部４９ａの隅部に連結孔としてねじ孔６５を形成している。又、この戸側金具４９の取付部である縦板部４９ｂには、複数の取付孔６６を形成している。
【００２９】
これに対して、枠側金具５０は、金属板をＬ字状に折曲して、更にその上部を逆Ｌ字状に折曲し、そして又、その先端部を逆Ｌ字状に折曲すると共に、これらの折曲部と直角の一面部に壁部５０ｅを設けたものであり、連結部である下横板部５０ａの隅部に連結孔６７を形成している。又、この枠側金具５０の取付部である前後の両縦板部５０ｂ，５０ｃには、隅部に孔６８，６９を形成している。
【００３０】
更に、枠側金具５０の縦板部５０ｂには、下部の中央部に、上下の支持片７０，７１を縦板部５０ｃ側への例えば切り起こしにより形成し、この支持片７０，７１間には、ローラ７２を縦軸７３により回転可能に取付け支持している。
【００３１】
このほか、枠側金具５０の上横板部５０ｄには、上記孔６８，６９側とは反対側の端部にねじ孔７４を形成して、これにねじ７５を上方より螺挿して下方へ貫通させ、更に、そのねじ孔７４側の壁部５０ｅに前後に長い長孔７６を形成している。
そして、連結部材５１は段付ねじから成っており、戸側金具４９の横板部４９ａの下に枠側金具５０の下横板部５０ａを重ねた上で、この連結部材５１を連結孔６７からねじ孔６５に螺挿して締付けることにより、戸側金具４９と枠側金具５０とを、該連結部材５１を中心としての回動可能に連結している。なお、連結部材５１も段付ねじに代えてリベットとしても良い。
【００３２】
下部の折戸用金具４５には、両縦板部５０ｂ，５０ｃ間に戸車７７を取付けている。この戸車７７は、図５に示すように、戸車支持部材である例えばプラスチック製の戸車ケース７８に収容して軸７９により横軸回転するように支持したもので、その戸車ケース７８は、隅部に孔８０，８０を有しており、図６及び図７に示すように、この孔８０，８０と前記枠側金具５０の孔６８，６９とに軸８１を通して適宜抜止めし、もって、戸車ケース７８ごと戸車７７を、軸８１を中心として上下に回動可能に枢支している。又、この場合、戸車ケース７８は、枠側金具５０の両縦板部５０ｂ，５０ｃとの間を軸８１に沿って変位できるようにしている。
【００３３】
戸車ケース７８には又、枠側金具５０の壁部５０ｅ側の面に凹欠部８２を形成して、これに伝動ピース８３を収納しており、この伝動ピース８３には、前記枠側金具５０の長孔７６を通したねじ８４を螺挿している。
【００３４】
そして、それらに対し、前記枠４３の上辺部（鴨居部分）４３ａの下面には、図１に示すように、レール８５をねじ８６によって取付けており、このレール８５は、この場合、断面逆Ｕ字状にて下面が全面的に開放する全開形の溝８７を軌条部として有している。又、このレール８５には、後面（図１中、右側面）に突条部８８を溝８７の伸延方向（図１中、紙面と直交する方向）と平行に設けている。
【００３５】
一方、枠４３の下辺部（敷居部分）４３ｂの上面には、レール８９を取付けており、このレール８９は、この場合、断面Ｖ字状にて上面が全面的に開放する全開形の溝９０を軌条部として有している。
【００３６】
次に、上記構成のものの枠４３に対する折戸４２の取付手順について述べる。まず、折戸４２に折戸用金具４４，４５を取付ける。詳細には、図８に示すように、折戸４２の上部の左右の両端部に折戸用金具４４を取付け、下部の左右の両端部に折戸用金具４５を取付けるのであるが、これらはそれぞれその左右で対称形となっている。なお、折戸４２は、２枚の戸板４２ａを複数個の蝶番４２ｂで折り畳み及び展開可能に連結して成る。
【００３７】
折戸４２に対する上記折戸用金具４４，４５の取付けは、図１に示すように、戸側金具４６，４９のそれぞれ縦板部４６ｂ，４９ｂを折戸４２の端部の背面 （裏面）に当てて、取付孔５３，６６を通した皿ねじ９１，９２を折戸４２に螺挿して締付けることによって行う。更に、このとき、戸側金具４６の横板部４６ａの隅部を折戸４２の隅部に合わせるようにして、該横板部４６ａを折戸４２の上面に重ね、一方、戸側金具４９の横板部４９ａの隅部を折戸４２の隅部に合わせるようにして、該横板部４９ａを折戸４２の下面に重ねる。
【００３８】
ここで、戸車７７を有した折戸用金具４５を上述のように折戸４２に取付けたことにより、戸車７７は折戸４２の裏側に位置する。
この後、被ガイド部材５６の凸部５７をレール８５の溝８７に嵌合し、戸車７７をレール８９の溝９０に載せる。
【００３９】
そして、その後、戸車７７の上下、前後の位置調整を行う。そのうち、戸車７７の上下の位置調整は、ねじ７５を螺進退させて行う。すなわち、ねじ７５を螺進退させれば、それによって、戸車ケース７８が軸８１を中心に上下に回動するものであり、この戸車ケース７８の上下の回動によって、戸車７７の上下の位置調整がなされる。
【００４０】
戸車７７の前後の位置調整は、ねじ８４をつまんで、これを長孔７６に沿い前後に移動させることによって行う。すなわち、ねじ８４を前後に移動させれば、それと一体に伝動ピース８３が移動することにより、この伝動ピース８３を凹欠部８２に収納した戸車ケース８２が軸８１に沿って前後に移動し、戸車７７の前後位置調整がなされる。この場合、最適の調整位置でねじ８４を締めることにより、伝動ピース８１がねじ８４の頭部側に寄せられて該ねじ８４の頭部との間で枠側金具５０の壁部５０ｅを挟圧するから、これによって戸車ケース７８が調整後の位置に固定され、ひいては戸車７７が調整後の位置に固定される。
【００４１】
一方、上部の折戸用金具４４においては、被ガイド部材５６の前後位置調整を行う。この被ガイド部材５６の前後位置調整は、ねじ６０を一旦緩めて、被ガイド部材５６を長孔５５により前後に位置調整した上で、ねじ６０を再度締めることにより行う。
【００４２】
そして、被ガイド部材５６には保持板６１を前述のようにして取付け、この保持板６１の溝６２をレール８５の突条部８８に摺動可能に嵌合させることによって、被ガイド部材５６の溝８７との嵌合状態を保持するようにする。更に、このとき、保持板６１は、長孔６３により上下位置調整をして取付ける。
【００４３】
以上により、枠４３に折戸４２を取付けるものであり、この取付け後、折戸４２を、これの前記蝶番４２ｃによる連結部分近くの前面部に設けた取手（図示せず）を持って手前に引けば、上部の折戸用金具４４の枠側金具４７が被ガイド部材５６によってレール８５の溝８７に沿って移動し、下部の折戸用金具４５の枠側金具５０が戸車７７によってレール８９の溝９０に沿って転動する。そして又、同時に、上部の折戸用金具４４の戸側金具４６が連結部材４８により枠側金具４７から回動し、下部の折戸用金具４５の戸側金具４９が連結部材５１により枠側金具５０から回動して折戸４２を回動させることにより、該折戸４２を折り畳み開放させる。
【００４４】
又、その折戸４２を折り畳み開放させた状態から、折戸４２を枠４３側へ押し込めば、上記各部がそれぞれ上述とは反対の方向に動作して、折戸４２を展開させ閉鎖させる。
【００４５】
そして、それらのとき、保持板６１は、溝６２をレール８５の突条部８８に嵌合させたまま、すなわち、それによって被ガイド部材５６を溝８７との嵌合状態に保持したまま、突条部８８に沿って移動するものであり、従って、保持板６１は上記溝８７に沿った被ガイド部材５６の移動を許容しつつ該被ガイド部材５６を溝８７との嵌合状態に保持する保持手段として機能する。
【００４６】
このように本構成のものは、折戸４２の下部に折戸用金具４５によって戸車７７を設け、上部に折戸用金具４４によって被ガイド部材５６を設けた構成にて、折戸４２が、従来のような吊り下げ形でなく、戸車７７による下方からの持ち上げ形で開閉される。このため、枠４３の上辺部４３ａには折戸４２の重量がかからず、該枠４３の上辺部４３ａが下がり気味となることがなくなるから、折戸４２の開閉がスムーズにできる。
【００４７】
又、枠４３に対する折戸４２の取付けに関しては、被ガイド部材５６を取付けた折戸用金具４４を折戸４２の上部に取付け、戸車７７を取付けた折戸用金具４５を折戸４２の下部に取付けた上で、この状態の被ガイド部材５６を枠４３の上辺部４３ａの軌条部であるレール８５の溝８７に組み付け、戸車７７を枠４３の下辺部４３ｂの軌条部であるレール８９の溝９０に組み付けることができるものであって、従来のもののような、レール２３，２４に枠側金具１５の吊り車２１、ローラ２２をあらかじめ収納して置き、又、折戸１１の端部１１ａに戸側金具１４をあらかじめ取付けて置いて、その後に、折戸１１を作業者の１人又は複数人が浮かし持ちつつ枠側金具１５に戸側金具１４を取付けるような、困難な作業が必要なく、作業性を改善できる。
【００４８】
そして、上記枠４３の上辺部４３ａのレール８５の溝８７（軌条部）は下面全開形であり、これに嵌合された被ガイド部材５６が、折戸４２の折り畳み状態又はそれに近い状態では、溝８７に沿った移動で該溝８７から脱離することが懸念される。しかしながら、それに対しては、保持板６１を有し、この保持板６１が、上記溝８７に沿った被ガイド部材５６の移動を許容しつつ該被ガイド部材５６を溝８７との嵌合状態に保持するから、溝８７からの被ガイド部材５６の脱離を防止でき、状態の安定保持ができる。
【００４９】
加えて、折戸４２は、開放時に前方に折り畳まれるもので、それにより、重心が前方に位置するようになって前傾し、それによって下部の折戸用金具４５の枠側金具５０が枠４２の下辺部４３ｂの前面Ｍ（図１参照）に当たって、その移動が、ひいては折戸４２の開閉がスムーズにできなくなるおそれがある。それに対しては、その枠側金具５０の、枠４３の下辺部４３ｂの前面Ｍに面する箇所である縦板部５０ｂに、ローラ７２を回転可能に設けていて、枠側金具５０と枠４３の下辺部４３ｂの前面Ｍとの間には、ローラ７２が位置し、これが、折戸４２の前傾時、枠側金具５０に代わり枠４３の下辺部４３ｂの前面Ｍに接触して、戸車７７と同方向に転動することにより、枠側金具５０の移動、ひいては折戸４２の開閉をよりスムーズに確保することができる。
【００５０】
以上に対して、図９ないし図１７は本発明の第２ないし第６実施例を示すもので、それぞれ、第１実施例と同一の部分には同一の符号を付して説明を省略し、異なる部分についてのみ述べる。
【００５１】
［第２実施例］
図９に示す第２実施例においては、前述の溝６２を有した保持板６１に代えて、鉤部１０１を有する保持板１０２を使用し、その鉤部１０１をレール８５の突条部８８に摺動可能に係合させて被ガイド部材５６を溝８７との嵌合状態に保持するようにしている。
【００５２】
従って、このものでも、保持板１０２は、溝８７に沿った被ガイド部材５６の移動を許容しつつ該被ガイド部材５６を溝８７との嵌合状態に保持する保持手段として機能するものであり、第１実施例同様に、溝８７からの被ガイド部材５６の脱離を防止できて、状態の安定保持ができる。
【００５３】
［第３実施例］
図１０ないし図１２に示す第３実施例においては、下部の折戸用金具４５の枠側金具５０に、ローラ７２をレール８９の溝９０の伸延方向に複数個、この場合、縦板部５０ｂの左右両側部に各１個で、計２個設けている。
【００５４】
折戸４２の開閉時、戸車７７はレール８９の溝９０との接触部を中心に回動しようとする。図１１及び図１２はこの様子を示しており、折戸４２を開放させるとき、戸車７７は図１１に矢印Ａで示すように移動して折戸４２を矢印Ｂで示すように折り畳むが、このとき、折戸４２は取手４２ｄを持って前方（図１１中、左側）に引張られてもおり、それに伴い、戸車７７にはレール８９の溝９０との接触部Ｓを中心にした矢印Ｃで示す方向への回動が与えられる。又、反対に折戸４２を閉鎖させるとき、戸車７７は図１２に矢印Ｄで示すように移動して折戸４２を矢印Ｅで示すように展開させるが、このとき、折戸４２は枠４３側に押し込まれてもおり、それに伴い、戸車７７にはレール８９の溝９０との接触部Ｓを中心にした矢印Ｆで示す方向への回動が与えられる。
【００５５】
しかして、そのように戸車７７が回動すると、下部の折戸用金具４５の枠側金具５０が枠４３の下辺部４３の前面に当たって、その移動が、ひいては折戸４２の開閉がスムーズにできなくなるおそれがある。
【００５６】
これに対して、下部の折戸用金具４５の枠側金具５０に、ローラ７２をレール８９の溝９０の伸延方向に複数個設けた本実施例の場合には、折戸４２の開放時と閉鎖時とで、戸車７７の移動方向（矢印Ａ，Ｄ）とはそれぞれ反対側、すなわち移動方向あとの位置にあるローラ７２が上述の枠側金具５０に代わり枠４３の下辺部４３ｂの前面に接触して、戸車７７と同方向に転動することにより、枠側金具５０の移動、ひいては折戸４２の開閉をスムーズに確保することができる。
【００５７】
［第４実施例］
図１３に示す第４実施例においては、戸車支持部材である戸車ケース１１１に、前述の戸車ケース７８よりも前後（図１３中、左右）に幅広なものを使用し、これの内部に仕切部１１１ａを設けて、この仕切部１１１ａと枠側金具５０の縦板部５０ｃとの間で戸車７７を回転可能に支持している。
【００５８】
又、戸車ケース１１１の前部（図１３中、左側部）には、下方への延長部１１１ｂを形成して、これ、すなわち戸車ケース１１１の、枠４３の下辺部４３ｂの前面Ｍに面する箇所に、前述の支持片７０，７１に代わる上下の支持片１１２，１１３を、戸車ケース１１１の例えばプラスチックによる成形と同時の型成形によって形成し、この支持片１１２，１１３間にローラ７２を縦軸７３により回転可能に取付け支持している。
ローラ７２はこのように設けても、前述同様の、折戸４２の前傾、並びに戸車７７のレール８９の溝９０との接触部を中心にしての回動に対して、折戸４２の開閉をスムーズに確保できる効果を奏する。
【００５９】
［第５実施例］
図１４に示す第５実施例においては、戸車支持部材である戸車ケース１２１に、上述の戸車ケース１１１より前後に幅狭であるものの、それと同様に、内部に仕切部１２１ａを有し、前部（図１４中、左側部）に延長部１２１ｂを有するものを用いて、その仕切部１２１ａと枠側金具５０の縦板部５０ｃとの間で戸車７７を回転可能に支持している。
【００６０】
又、戸車ケース１２１の、枠４３の下辺部４３ｂの前面Ｍに面する箇所である延長部１２１ｂには、上述の支持片１１２，１１３とも代わる上下の支持片１２２，１２３を、戸車ケース１２１の例えばプラスチックによる成形と同時の型成形によって枠側金具５０の縦板部５０ｂ側に形成すると共に、孔１２４を支持片１２２，１２３の上下間に形成し、この孔１２４内に位置させて支持片１２２，１２３間に、ローラ７２を縦軸７３により回転可能に取付け支持している。
【００６１】
更に、この場合、枠側金具５０の縦板部５０ｂと戸側金具４９の縦板部４９ｂには、孔１２５，１２６を形成し、この孔１２５，１２６内にローラ７２と支持片１２２，１２３とを位置させている。
【００６２】
ローラ７２はこのように設けても、前述同様の、折戸４２の前傾、並びに戸車７７のレール８９の溝９０との接触部を中心にしての回動に対して、折戸４２の開閉をスムーズに確保できる効果を奏する。
又、この場合、ローラ７２を枠側金具５０と戸側金具４９の孔１２５，１２６内に位置させた分、折戸４２と枠４３との間を近付けることができて、それら折戸４２と枠４３との隙間を小さくすることができる。
【００６３】
［第６実施例］
図１５ないし図１７に示す第６実施例においては、上下の折戸用金具１３１，１３２の戸側金具１３３，１３４を、それぞれ折戸４２の裏面Ｒから側縁面Ｇに添うＬ字状に形成し、枠側金具１３５，１３６特にこれらの基部を、それぞれ戸側金具１３３，１３４に添うＬ字状に形成して、これらを折戸４２の側縁面Ｇ側の端縁部で、組合わせた筒部１３７，１３８にそれぞれ連結部材である縦軸１３９，１４０を通すことにより回動可能に連結している。
【００６４】
このものによれば、戸側金具１３３，１３４の取付位置を、折戸４２の上面及び下面に制されることなく、折戸４２の裏面Ｒ及び側縁面Ｇに沿って自由に設定することができる。これにより、例えば図１５に示すように、折戸４２が枠４３を覆い隠す寸法のものでも、実施可能となる。又、この場合、筒部１３７，１３８の組合わせ長、並びにそれに通した縦軸１３９，１４０が長く、折戸用金具１３１，１３２の戸側金具１３３，１３４と枠側金具１３５，１３６との連結強度、ひいては折戸４２の支持強度を高く得ることができる。
【００６５】
このほか、被ガイド部材５６の凸部５７は、それを縦軸回転するローラに変えて実施するようにしても良く、又、その凸部５７を出没可能に設けてレール８５の溝８７に組込みやすくしても良い。更に、被ガイド部材５６は前後に位置調整されるだけでなく、上下にも位置調整されるようにしても良い。
加えて、保持板６１（保持手段）は、被ガイド部材５６に取付けるのではなく、レール８５側すなわち枠４３の上辺部４３ａの軌条部側に取付けて、被ガイド部材５６を軌条部との嵌合状態に保持するようにしても良い。
そのほか、本発明は上記し且つ図面に示した実施例にのみ限定されるものではなく、要旨を逸脱しない範囲内で適宜変更して実施し得る。
【００６６】
【発明の効果】
本発明は以上説明したとおりのもので、折戸の開閉がスムーズにできると共に、枠への折戸の取付けが容易にでき、しかも、枠の上辺部の下面全開形の軌条部からの被ガイド部材の脱離を防止できて、状態の安定保持ができるという効果を得ることができる。
【図面の簡単な説明】
【図１】本発明の第１実施例を示す折戸装置の上部及び下部の縦断側面図
【図２】上部の折戸用金具の分解斜視図
【図３】被ガイド部材部分の分解斜視図
【図４】下部の折戸用金具の分解斜視図
【図５】戸車部分の分解斜視図
【図６】下部の折戸用金具の横断面図
【図７】下部の折戸用金具の縦断面図
【図８】折戸装置の斜視説明図
【図９】本発明の第２実施例を示す図１部分相当図
【図１０】本発明の第３実施例を示す図４部分相当図
【図１１】折戸の開放時の各部の動作を示す説明図
【図１２】折戸の閉鎖時の各部の動作を示す説明図
【図１３】本発明の第４実施例を示す図１部分相当図
【図１４】本発明の第５実施例を示す図１部分相当図
【図１５】本発明の第６実施例を示す図１部分相当図
【図１６】上部の折戸用金具の平面図
【図１７】図８相当図
【図１８】インセット形折戸装置の概略横断面図
【図１９】アウトセット形折戸装置の概略横断面図
【図２０】従来例を示す図８相当図
【図２１】主要部分の分解斜視図
【図２２】連結機構部分の拡大横断面図
【図２３】図１相当図
【符号の説明】
４２は折戸、４３は枠、４３ａは枠の上辺部、４３ｂは枠の下辺部、４４，４５は折戸用金具、４６は戸側金具、４７は枠側金具、４８は連結部材、４９は戸側金具、５０は枠側金具、５１は連結部材、５６は被ガイド部材、６１は保持板（保持手段）、７２はローラ、７７は戸車、８５はレール、８７は溝（軌条部）、８８は突条部、８９はレール、９０は溝（軌条部）、１０２は保持板（保持手段）、１１１，１２１は戸車ケース（戸車支持部材）、１３１，１３２は折戸用金具、１３３，１３４は戸側金具、１３５，１３６は枠側金具、１３９，１４０は縦軸（連結部材）を示す。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a folding door fitting for movably and rotatably attaching an end of a folding door to a frame.
[0002]
[Prior art]
The folding door device is folded when the door is opened, and is often used as, for example, a closet door or a room partition door.
This folding door device has an inset type and an outset type. Among these, the inset type is a type in which the folding door 1 is housed in a frame 2 as shown in FIG. As shown in FIG. 19, the set type is a type in which the folding door 11 is attached to the outer front side (lower side in the figure) of the frame 12.
[0003]
FIG. 20 shows the metal fitting 13 conventionally used for the outset type folding door device. The metal fitting 13 is for attaching the left and right and upper and lower end portions 11a of the folding door 11 to the frame 12 so as to be movable and turnable. The metal fitting 13 is respectively separated from the door-side metal fitting 14 and a separate frame side. It comprises a metal fitting 15 and a connecting mechanism 16 that connects these metal fittings 14 and 15 so as to be rotatable.
The folding door 11 is formed by connecting two door plates 11b with a plurality of hinges 11c so that they can be folded and unfolded.
[0004]
As shown in detail in FIG. 21, the door-side metal fitting 14 of the metal fitting 13 has a cylindrical portion 18 inserted into a hole 17 formed on the back side of the end portion 11a of the folding door 11, and the flange portion 19 is folded at the upper and lower portions. 11 is attached to the end portion 11a by a screw 20.
On the other hand, the frame-side metal fitting 15 has a suspension wheel 21 (see FIG. 20) whose horizontal axis rotates with respect to the upper side portion (the duck portion) of the frame 12, while the lower side portion (the sill portion) of the frame 12 Has a roller 22 that rotates in the vertical axis, and a suspension wheel 21 is slidably accommodated in a rail 23 provided on the upper side of the frame 12, and the roller 22 is provided on the lower side of the frame 12. The rail 24 is also stored so as to be able to roll.
[0005]
Then, as shown in FIG. 22, the connecting mechanism 16 connects the base end portions of the two connecting plates 26 and 27 to the base 25 so as to be rotatable by the shaft pins 28 and 29, and these two connecting plates. 26 and 27 are pivotally connected to the peripheral side portion of the cylindrical portion 18 of the door-side metal fitting 14 by shaft pins 30 and 31, and the base 25 further has a notch groove 32. As shown in FIG. 21, the groove 32 is fitted to a screw 33 temporarily screwed into the frame side metal fitting 15, and the screw 33 is tightened at an optimal slide adjustment position so that the groove 32 can be attached to the frame side metal fitting 15. It has become.
[0006]
Here, in actual mounting, the door side metal fitting 14 is attached and placed on the end 11a of the folding door 11, while the rails 23 and 24 accommodate the roller 22 of the frame side metal fitting 15 and the suspension wheel 21. The door side metal fitting 14 is attached to the frame side metal fitting 15 with the notch groove 32 and the screw 33, respectively (see FIG. 23).
[0007]
When the folding door 11 is pulled to the front with a handle 11d (see FIG. 19) provided on the front surface near the connecting portion of the hinge 11c after the attachment, the frame side metal 15 is moved by the suspension wheel 21 and the roller 22. The door 11 is moved along the rails 23, 24, and at the same time, the door 11 is turned from the base 25 by the connecting mechanism 16 and eventually from the frame 15 to turn the folding door 11. It is designed to fold.
[0008]
In the case of the above-described configuration, the folding door 11 is formed between the hole 17 and the end face of the folding door 11 because of the need for strength when forming the hole 17 into which the cylindrical portion 18 of the metal fitting 13 is inserted. A margin of dimension L shown in FIG. For this reason, the door side metal fitting 14 of the metal fitting 13 is attached to be separated from the end face of the folding door 11 by a dimension L. With this state, when the folding door 11 is opened, the end face portion 11e of the folding door 11 is on the frame 12 side. To the frame 12 and the folding door 11 cannot be opened.
[0009]
Therefore, the door-side metal fitting 14 of the metal fitting 13 is connected to the frame-side metal fitting 15 by the connecting mechanism 16, and the connecting mechanism 16 attaches the base end portions of the two connecting plates 26 and 27 to the base body 25 described above. With the structure which connected so that it could rotate by the shaft pins 28 and 29, and connected the front-end | tip part of this connection board 26 and 27 to the side part of the cylinder part 18 of the door side metal fitting 14 by the shaft pins 30 and 31. When the folding door 11 is opened, as shown by a two-dot chain line in FIG. 22, the door-side metal fitting 14 is not simply rotated, but is also pushed forward (left side in FIG. 22). The folding door 11 can be fully opened by avoiding the collision of the frame 11e with the frame 11e.
[0010]
[Problems to be solved by the invention]
In the above-mentioned conventional one, the suspension wheel 21 is provided at the upper part of the folding door 11 and the roller 22 is provided at the lower part. Among these, the suspension wheel 21 rolls with the folding door 11 suspended from the rail 23, and therefore receives the weight of the folding door 11. On the other hand, the roller 22 only rolls the rail 24 as the suspension wheel 21 rolls, and functions only as a guided member used for moving guidance of the folding door 11. In this relation, the roller 22 rolls in the rail 24 away from the bottom surface (floating in the air).
[0011]
In this case, the weight of the folding door 11 hung on the rail 23 by the suspension vehicle 21 is applied to the upper side portion (portion portion) of the frame 12, and this portion is lowered, so the rail 23 bends downward. The movement of the suspension vehicle 21 along the rail 23 deteriorated, and the folding door 11 could not be opened and closed smoothly.
[0012]
As for the attachment of the folding door 11 to the frame 12, as described above, the suspension wheel 21 and the roller 22 of the frame side metal fitting 15 are stored in advance in the rails 23 and 24, and the folding door 11 is attached to the end 11 a of the folding door 11. The door side metal fitting 14 is attached and placed in advance, and then the door side metal fitting 14 is attached to the frame side metal fitting 15, and one or more of the workers float the folding door 11 and others. It is necessary for the worker to attach the door-side metal fitting 14 to the frame-side metal fitting 15, and the work is difficult.
[0014]
The present invention has been made in view of the above-mentioned circumstances, and therefore the object thereof can be smoothly opened and closed. Provide folding door brackets Easy installation of the folding door to the frame When Both provide folding door brackets that are effective in maintaining stable state. Offer There is.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, the folding door fitting of the present invention is for attaching the end portion of the folding door to the frame so as to be movable and rotatable, and firstly, the door side fitting attached to the folding door. And a frame-side metal fitting rotatably connected to the door-side metal fitting, and the frame-side metal fitting is on the rail portion provided on the lower side of the frame with respect to the lower side of the frame. While receiving the load of the folding door It has a door roller that rolls, and for the upper side of the frame, it has a guided member that is movably fitted to the lower surface fully open rail provided on the upper side of the frame, The guided member or the rail on the upper side of the frame is attached in the fitted state, and the guided member is fitted with the rail while allowing the guided member to move along the rail. A holding means for holding in a combined state is provided (invention of claim 1).
[0016]
According to this, the folding door is opened and closed not by a conventional hanging type but by a lifting type from below by a door cart. For this reason, since the weight of the folding door is not applied to the upper side portion of the frame and the upper side portion of the frame is not lowered, the folding door can be opened and closed smoothly.
[0017]
In addition, with regard to the installation of the folding door to the frame, the folding door fitting with the door carriage is attached to the lower portion of the folding door, the folding door fitting with the guided member attached to the upper portion of the folding door, and the guided member in this state is attached. It is possible to assemble to the rail part on the upper side of the frame and assemble the door wheel to the rail part on the lower side of the frame.
The rail part on the upper side of the frame is fully open on the lower surface, and the guided member fitted thereto is detached from the rail part by moving along the rail part when the folding door is folded or close to it. Although there is a concern that it can be held, it can be held in the fitted state by the holding means, and detachment can be prevented.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described below with reference to FIGS.
First, an outset type folding door device 41 is shown in FIG. 1, and a folding door 42 is attached to the outer front side (left side in the figure) of the frame 43. The folding door 42 is attached to the frame 43 by a metal fitting 44 at the upper part and a metal fitting 45 at the lower part, and the upper folding door metal fitting 44 is a door-side metal fitting 46 and a separate frame. It consists of the side metal fitting 47 and the connection member 48 which connected them rotatably. The lower folding door fitting 45 also includes a door-side fitting 49, a separate frame-side fitting 50, and a connecting member 51 that connects them in a rotatable manner.
[0023]
Among these, the door side metal fitting 46 of the upper folding door metal fitting 44 is formed by bending a metal plate into an inverted L shape, as shown in FIG. A screw hole 52 is formed as a connecting hole at the corner of each. A plurality of attachment holes 53 are formed in the vertical plate portion 46 b that is an attachment portion of the door side metal fitting 46.
[0024]
On the other hand, the frame side metal fitting 47 is obtained by bending a metal plate in an inverted L shape and further bending the lower portion thereof in an L shape, and this upper horizontal plate portion 47a is a connecting portion. A connecting hole 54 is formed at the corner. In addition, two long holes 55 that are long in the front-rear direction (left and right in the figure) are formed in the lower horizontal plate portion 47 b that is an attachment portion of the frame side metal fitting 47.
[0025]
The connecting member 48 is formed of a stepped screw, and the upper horizontal plate portion 47 a of the frame side metal fitting 47 is overlaid on the horizontal plate portion 46 a of the door side metal fitting 46, and then the connection member 48 is connected to the connection hole 54. Then, the door side metal fitting 46 and the frame side metal fitting 47 are connected to each other so as to be rotatable about the connection member 48. The connecting member 48 may be a rivet instead of the stepped screw.
[0026]
The guided member 56 is attached to the upper folding door fitting 44. The guided member 56 is made of plastic or metal and is formed of a rectangular parallelepiped block having a convex portion 57 on the upper part, and two screw holes 58 and 59 are formed on the lower side and the rear side, respectively. Yes. With this configuration, the guided member 56 is placed on the lower horizontal plate portion 47b of the frame-side metal fitting 47 of the upper folding door metal fitting 44, and then, two screws 60 are passed through the elongated holes 55 from below, respectively. The guided member 56 is mounted on the lower horizontal plate portion 47 b of the frame side metal fitting 47 of the upper folding door metal fitting 44 by being screwed into the hole 58 and tightened.
[0027]
Further, a holding plate 61 shown in FIG. 3 is attached to the guided member 56. The holding plate 61 is made of plastic or metal and has a rectangular shape. A long groove 62 is formed on the front side (left side in the figure) on the left and right sides, and two vertically long parts are formed on the lower part. A long hole 63 is formed. With this configuration, the holding plate 61 is directed to the rear surface (right side in the drawing) of the guided member 56, and then, two screws 64 are passed through the elongated holes 63 from the rear (right side in the drawing). The holding plate 61 is attached to the rear surface of the guided member 56 by being screwed into the screw hole 59 of the guided member 56 and tightening.
[0028]
On the other hand, the door side metal fitting 49 of the lower folding door metal fitting 45 is formed by bending a metal plate into an L shape as shown in FIG. 4, and is a corner of the horizontal plate portion 49a which is a connecting portion. A screw hole 65 is formed as a connecting hole in the part. A plurality of mounting holes 66 are formed in the vertical plate portion 49 b that is the mounting portion of the door side metal fitting 49.
[0029]
On the other hand, the frame side metal fitting 50 bends the metal plate in an L shape, further bends the upper part in an inverted L shape, and also bends the tip in an inverted L shape. In addition, wall portions 50e are provided on one surface portion perpendicular to these bent portions, and connection holes 67 are formed at the corners of the lower horizontal plate portion 50a, which is a connection portion. Further, holes 68 and 69 are formed at the corners of the front and rear vertical plate portions 50b and 50c, which are the attachment portions of the frame side metal fitting 50.
[0030]
Furthermore, upper and lower support pieces 70 and 71 are formed in the vertical plate portion 50b of the frame side metal fitting 50 by, for example, cutting and raising to the vertical plate portion 50c side. The roller 72 is rotatably supported by a longitudinal axis 73.
[0031]
In addition, the upper horizontal plate portion 50d of the frame-side metal fitting 50 is formed with a screw hole 74 at the end opposite to the holes 68 and 69, and a screw 75 is screwed into the screw hole 74 from above to move downward. Further, a long hole 76 is formed in the wall part 50e on the screw hole 74 side so as to be long in the front-rear direction.
The connecting member 51 is formed of a stepped screw, and the lower horizontal plate portion 50a of the frame side metal fitting 50 is overlapped under the horizontal plate portion 49a of the door side metal fitting 49, and then the connecting member 51 is connected to the connection hole 67. Then, the door side metal fitting 49 and the frame side metal fitting 50 are connected to each other so as to be rotatable around the connecting member 51. The connecting member 51 may be a rivet instead of the stepped screw.
[0032]
A door pulley 77 is attached to the lower folding door fitting 45 between the vertical plate portions 50b and 50c. As shown in FIG. 5, the door pulley 77 is housed in a door roller support member 78 made of plastic, for example, and supported by a shaft 79 so as to be rotated in the horizontal axis. 6 and 7, as shown in FIG. 6 and FIG. 7, the door 80 is secured to the holes 80 and 80 and the holes 68 and 69 of the frame side metal 50 through a shaft 81. A door 77 together with the case 78 is pivotally supported so as to be pivotable up and down about a shaft 81. Further, in this case, the door cart case 78 can be displaced along the shaft 81 between the vertical plate portions 50 b and 50 c of the frame side metal fitting 50.
[0033]
The door case 78 also has a recess 82 formed on the wall 50e side surface of the frame side metal 50, and a transmission piece 83 is accommodated in the notch 82. The transmission piece 83 includes the frame side metal fitting. A screw 84 through 50 long holes 76 is screwed.
[0034]
On the other hand, as shown in FIG. 1, a rail 85 is attached to the lower surface of the upper side portion (the duck portion) 43a of the frame 43 with a screw 86. It has a full-open groove 87 that has a letter-like shape whose bottom surface is fully open as a rail portion. The rail 85 is provided with a protrusion 88 on the rear surface (right side in FIG. 1) in parallel with the extending direction of the groove 87 (direction perpendicular to the paper surface in FIG. 1).
[0035]
On the other hand, a rail 89 is attached to the upper surface of the lower side portion (sill portion) 43b of the frame 43. In this case, the rail 89 has a V-shaped cross section and a fully open groove 90 whose upper surface is fully open. As a rail part.
[0036]
Next, a procedure for attaching the folding door 42 to the frame 43 having the above configuration will be described. First, the folding door fittings 44 and 45 are attached to the folding door 42. Specifically, as shown in FIG. 8, the folding door brackets 44 are attached to the left and right ends of the upper part of the folding door 42, and the folding door brackets 45 are attached to the lower left and right ends, respectively. It is symmetrical. The folding door 42 is formed by connecting two door plates 42a so that they can be folded and unfolded by a plurality of hinges 42b.
[0037]
As shown in FIG. 1, the folding door fittings 44 and 45 are attached to the folding door 42 by placing the vertical plate portions 46 b and 49 b of the door side fittings 46 and 49 on the back surface (back surface) of the end portion of the folding door 42, respectively. The countersunk screws 91 and 92 that have passed through the mounting holes 53 and 66 are screwed into the folding door 42 and tightened. Further, at this time, the horizontal plate portion 46 a of the door-side metal fitting 46 is aligned with the corner of the folding door 42, and the horizontal plate portion 46 a is overlaid on the upper surface of the folding door 42. The horizontal plate portion 49 a is overlapped with the lower surface of the folding door 42 so that the corner portion of the plate portion 49 a is aligned with the corner portion of the folding door 42.
[0038]
Here, by attaching the folding door fitting 45 having the door pulley 77 to the folding door 42 as described above, the door pulley 77 is positioned on the back side of the folding door 42.
Thereafter, the convex portion 57 of the guided member 56 is fitted into the groove 87 of the rail 85, and the door pulley 77 is placed on the groove 90 of the rail 89.
[0039]
Then, the vertical and vertical position adjustment of the door pulley 77 is performed. Among them, the vertical position adjustment of the door pulley 77 is performed by moving the screw 75 forward and backward. That is, if the screw 75 is screwed back and forth, the door wheel case 78 is turned up and down around the shaft 81, and the upper and lower positions of the door wheel 77 are adjusted by turning the door wheel case 78 up and down. Is made.
[0040]
The front / rear position adjustment of the door pulley 77 is performed by pinching the screw 84 and moving it forward and backward along the long hole 76. That is, if the screw 84 is moved back and forth, the transmission piece 83 is moved integrally therewith, so that the door wheel case 82 in which the transmission piece 83 is housed in the recessed portion 82 is moved back and forth along the shaft 81. The front / rear position of the door pulley 77 is adjusted. In this case, by tightening the screw 84 at the optimum adjustment position, the transmission piece 81 is brought close to the head side of the screw 84 and clamps the wall 50e of the frame side metal fitting 50 between the head of the screw 84. Thus, the door cart case 78 is fixed at the adjusted position, and the door wheel 77 is fixed at the adjusted position.
[0041]
On the other hand, in the upper folding door metal fitting 44, the front-rear position adjustment of the guided member 56 is performed. The front / rear position adjustment of the guided member 56 is performed by once loosening the screw 60, adjusting the position of the guided member 56 forward / backward by the elongated hole 55, and then tightening the screw 60 again.
[0042]
Then, the holding plate 61 is attached to the guided member 56 as described above, and the groove 62 of the holding plate 61 is slidably fitted to the protruding portion 88 of the rail 85 so that the guided member 56 The fitting state with the groove 87 is maintained. Further, at this time, the holding plate 61 is attached by adjusting the vertical position through the long hole 63.
[0043]
As described above, the folding door 42 is attached to the frame 43. After this attachment, the folding door 42 is pulled forward with a handle (not shown) provided on the front surface near the connecting portion by the hinge 42c. The frame side metal fitting 47 of the upper folding door metal fitting 44 is moved along the groove 87 of the rail 85 by the guided member 56, and the frame side metal fitting 50 of the lower folding door metal fitting 45 is moved to the groove 90 of the rail 89 by the door wheel 77. Roll along. At the same time, the door side metal fitting 46 of the upper folding door metal fitting 44 is rotated from the frame side metal fitting 47 by the connecting member 48, and the door side metal fitting 49 of the lower folding door metal fitting 45 is connected to the frame side metal fitting 50 by the connecting member 51. The folding door 42 is folded and opened by rotating the folding door 42 by rotating the folding door 42.
[0044]
Further, when the folding door 42 is pushed into the frame 43 side from the state in which the folding door 42 is folded open, the respective parts operate in directions opposite to the above, and the folding door 42 is expanded and closed.
[0045]
At those times, the holding plate 61 protrudes while the groove 62 is fitted to the protrusion 88 of the rail 85, that is, while the guided member 56 is held in the fitted state with the groove 87. Accordingly, the holding plate 61 holds the guided member 56 in a fitted state with the groove 87 while allowing the guided member 56 to move along the groove 87. It functions as a holding means.
[0046]
Thus, the thing of this structure is the structure which provided the door pulley 77 by the folding door metal fitting 45 in the lower part of the folding door 42, and provided the to-be-guided member 56 by the folding door metal fitting 44 in the upper part, and the folding door 42 is the same as the past. It is opened and closed by a lift from the lower side by a door pulley 77 instead of a suspended shape. For this reason, the weight of the folding door 42 is not applied to the upper side portion 43a of the frame 43, and the upper side portion 43a of the frame 43 is not lowered, so that the folding door 42 can be opened and closed smoothly.
[0047]
The folding door 42 is attached to the frame 43 by attaching the folding door bracket 44 with the guided member 56 to the upper portion of the folding door 42 and attaching the folding door bracket 45 with the door pulley 77 to the lower portion of the folding door 42. In this state, the guided member 56 is assembled to the groove 87 of the rail 85 which is the rail portion of the upper side portion 43a of the frame 43, and the door pulley 77 is assembled to the groove 90 of the rail 89 which is the rail portion of the lower side portion 43b of the frame 43. The suspension wheel 21 and the roller 22 of the frame side metal fitting 15 are previously stored in the rails 23 and 24, and the door side metal fitting 14 is attached to the end portion 11a of the folding door 11 as in the prior art. There is no need for difficult work such as attaching the door-side metal fitting 14 to the frame-side metal fitting 15 while one or more of the workers are floating and holding the folding door 11 after being attached in advance. It can be good.
[0048]
And the groove | channel 87 (rail part) of the rail 85 of the upper side part 43a of the said frame 43 is a lower surface full open shape, and the to-be-guided member 56 fitted to this is a groove | channel in the folding state of the folding door 42 or a state close | similar to it. There is a concern about the movement along the line 87 and the separation from the groove 87. However, it has a holding plate 61, and this holding plate 61 allows the guided member 56 to move along the groove 87 while keeping the guided member 56 in a fitted state with the groove 87. Therefore, the guided member 56 can be prevented from being detached from the groove 87, and the state can be stably maintained.
[0049]
In addition, the folding door 42 is folded forward when it is opened, so that the center of gravity is positioned forward, and the frame side fitting 50 of the lower folding door fitting 45 is moved to the frame 42. When it hits the front surface M (see FIG. 1) of the lower side portion 43b, there is a possibility that the movement and, consequently, the folding door 42 cannot be opened and closed smoothly. To that end, a roller 72 is rotatably provided on the vertical plate portion 50b which is a portion facing the front surface M of the lower side portion 43b of the frame 43 of the frame side metal fitting 50, and the frame side metal fitting 50 and the frame 43 are provided. A roller 72 is located between the lower side portion 43b and the front surface M of the lower side portion 43b. When the folding door 42 is tilted forward, the roller 72 comes into contact with the front surface M of the lower side portion 43b of the frame 43 instead of the frame side metal fitting 50. The frame side metal fitting 50 can be moved more smoothly, and the folding door 42 can be opened and closed more smoothly.
[0050]
9 to 17 show the second to sixth embodiments of the present invention. The same parts as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. Only the differences are described.
[0051]
[Second Embodiment]
In the second embodiment shown in FIG. 9, instead of the holding plate 61 having the groove 62 described above, a holding plate 102 having a flange portion 101 is used, and the flange portion 101 is used as the protrusion 88 of the rail 85. The guided member 56 is engaged with the groove 87 by being slidably engaged.
[0052]
Accordingly, even in this case, the holding plate 102 functions as a holding unit that holds the guided member 56 in a fitted state with the groove 87 while allowing the guided member 56 to move along the groove 87. As in the first embodiment, the guided member 56 can be prevented from being detached from the groove 87, and the state can be stably maintained.
[0053]
[Third embodiment]
In the third embodiment shown in FIGS. 10 to 12, a plurality of rollers 72 are provided on the frame side metal fitting 50 of the lower folding door metal fitting 45 in the extending direction of the groove 90 of the rail 89, in this case, the vertical plate portion 50b. Two in total, one on each of the left and right sides.
[0054]
When the folding door 42 is opened and closed, the door pulley 77 tends to rotate around the contact portion with the groove 90 of the rail 89. 11 and 12 show this state. When the folding door 42 is opened, the door pulley 77 moves as shown by an arrow A in FIG. 11 and folds the folding door 42 as shown by an arrow B. At this time, The folding door 42 is also pulled forward (left side in FIG. 11) with a handle 42d, and accordingly, the door pulley 77 has a direction indicated by an arrow C centered on the contact portion S with the groove 90 of the rail 89. Is provided. On the other hand, when the folding door 42 is closed, the door pulley 77 moves as shown by an arrow D in FIG. 12 to expand the folding door 42 as shown by an arrow E. Accordingly, the door 77 is turned in the direction indicated by the arrow F around the contact portion S with the groove 90 of the rail 89.
[0055]
Thus, when the door pulley 77 rotates in such a manner, the frame side metal fitting 50 of the lower folding door metal fitting 45 hits the front surface of the lower side portion 43 of the frame 43, and the movement may eventually fail to smoothly open and close the folding door 42. There is.
[0056]
On the other hand, in this embodiment in which a plurality of rollers 72 are provided in the extending direction of the groove 90 of the rail 89 on the frame side metal fitting 50 of the lower folding door metal fitting 45, the folding door 42 is opened and closed. Thus, the roller 72 on the opposite side of the moving direction (arrows A and D) of the door pulley 77, that is, the position after the moving direction, contacts the front surface of the lower side portion 43b of the frame 43 instead of the frame side metal fitting 50 described above. In addition, by rolling in the same direction as the door pulley 77, the movement of the frame side metal fitting 50, and consequently the opening and closing of the folding door 42 can be ensured smoothly.
[0057]
[Fourth embodiment]
In the fourth embodiment shown in FIG. 13, a door wheel case 111 that is a door wheel support member is wider than the door wheel case 78 in the front-rear direction (right and left in FIG. 13), and a partition portion is provided inside the door wheel case 111. 111a is provided, and the door pulley 77 is rotatably supported between the partition portion 111a and the vertical plate portion 50c of the frame side metal fitting 50.
[0058]
Further, a downward extension 111b is formed at the front portion (left side in FIG. 13) of the door cart case 111, which faces the front surface M of the lower side portion 43b of the frame 43 of the door wheel case 111. Upper and lower support pieces 112 and 113 instead of the above-described support pieces 70 and 71 are formed at a location by mold forming at the same time as molding of the door cart case 111, for example, with plastic, and a roller 72 is vertically disposed between the support pieces 112 and 113. The shaft 73 is rotatably mounted and supported.
Even if the roller 72 is provided in this way, the folding door 42 can be opened and closed smoothly with respect to the forward tilt of the folding door 42 and the rotation about the contact portion with the groove 90 of the rail 89 of the door pulley 77 as described above. There is an effect that can be secured.
[0059]
[Fifth embodiment]
In the fifth embodiment shown in FIG. 14, the door cart case 121, which is a door cart support member, is narrower in the front and rear directions than the above door cart case 111, and similarly, has a partition part 121a inside, A door wheel 77 is rotatably supported between the partition portion 121a and the vertical plate portion 50c of the frame side metal fitting 50 by using the one having the extension portion 121b on the left side in FIG.
[0060]
In addition, upper and lower support pieces 122 and 123, which replace the above-described support pieces 112 and 113, are provided on the extension portion 121 b, which is a portion facing the front surface M of the lower side portion 43 b of the frame 43. For example, it is formed on the vertical plate portion 50b side of the frame side metal fitting 50 by molding at the same time as molding with plastic, and the hole 124 is formed between the upper and lower sides of the support pieces 122, 123, and is positioned in the hole 124 to be the support piece. A roller 72 is attached and supported by a longitudinal axis 73 between 122 and 123.
[0061]
Further, in this case, holes 125 and 126 are formed in the vertical plate portion 50 b of the frame side metal fitting 50 and the vertical plate portion 49 b of the door side metal fitting 49, and the roller 72 and the support pieces 122 and 123 are formed in the holes 125 and 126. And is located.
[0062]
Even if the roller 72 is provided in this way, the folding door 42 can be opened and closed smoothly with respect to the forward tilt of the folding door 42 and the rotation about the contact portion with the groove 90 of the rail 89 of the door pulley 77 as described above. There is an effect that can be secured.
In this case, the folding door 42 and the frame 43 can be brought close to each other by the amount of the roller 72 positioned in the holes 125 and 126 of the frame side metal fitting 50 and the door side metal fitting 49. Can be reduced.
[0063]
[Sixth embodiment]
In the sixth embodiment shown in FIGS. 15 to 17, the door side metal parts 133 and 134 of the upper and lower folding door metal parts 131 and 132 are formed in an L shape that follows the side edge face G from the back surface R of the folding door 42. The frame side metal fittings 135 and 136, in particular, these bases are formed in an L shape following the door side metal fittings 133 and 134, respectively, and these are combined at the edge of the folding door 42 on the side edge surface G side. The parts 137 and 138 are connected so as to be rotatable by passing the longitudinal axes 139 and 140 which are connecting members, respectively.
[0064]
According to this, the attachment position of the door side metal fittings 133 and 134 can be freely set along the back surface R and the side edge surface G of the folding door 42 without being restricted by the upper surface and the lower surface of the folding door 42. . This allows you to 15 As shown in FIG. 5, even when the folding door 42 covers the frame 43, it can be implemented. Further, in this case, the combined length of the cylindrical portions 137 and 138 and the longitudinal axes 139 and 140 passing through the combined length are long, and the door side fittings 133 and 134 of the folding door fittings 131 and 132 are connected to the frame side fittings 135 and 136. The strength, and thus the support strength of the folding door 42 can be increased.
[0065]
In addition, the convex portion 57 of the guided member 56 may be implemented by changing it to a roller that rotates in the vertical axis, and the convex portion 57 is provided so as to be able to project and retract and is incorporated in the groove 87 of the rail 85. It may be easy. Furthermore, the guided member 56 may be adjusted not only in the front-rear position but also in the vertical direction.
In addition, the holding plate 61 (holding means) is not attached to the guided member 56, but is attached to the rail 85 side, that is, the rail portion side of the upper side portion 43a of the frame 43, and the guided member 56 is fitted to the rail portion. You may make it hold | maintain in a match state.
In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications within a range not departing from the gist.
[0066]
【The invention's effect】
The present invention is as described above. Fold The door can be opened and closed smoothly, and the folding door can be easily attached to the frame.In addition, the guided member can be prevented from being detached from the rail that is fully open on the lower side of the upper side of the frame, thus maintaining the state stably. Can The effect that can be obtained .
[Brief description of the drawings]
FIG. 1 is a vertical side view of an upper part and a lower part of a folding door apparatus according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of the upper folding door bracket.
FIG. 3 is an exploded perspective view of a guided member portion.
FIG. 4 is an exploded perspective view of the lower folding door bracket.
FIG. 5 is an exploded perspective view of a door pulley part.
FIG. 6 is a cross-sectional view of the lower folding door bracket.
FIG. 7 is a longitudinal sectional view of the lower folding door bracket.
FIG. 8 is a perspective explanatory view of the folding door device.
FIG. 9 is a partial equivalent diagram of FIG. 1 showing a second embodiment of the present invention.
10 is a partial equivalent diagram of FIG. 4 showing a third embodiment of the present invention.
FIG. 11 is an explanatory diagram showing the operation of each part when the folding door is opened.
FIG. 12 is an explanatory diagram showing the operation of each part when the folding door is closed.
FIG. 13 is a partial equivalent diagram of FIG. 1 showing a fourth embodiment of the present invention.
14 is a partial equivalent diagram of FIG. 1 showing a fifth embodiment of the present invention.
FIG. 15 is a partial equivalent view of FIG. 1 showing a sixth embodiment of the present invention.
FIG. 16 is a plan view of the upper folding door bracket.
FIG. 17 is equivalent to FIG.
FIG. 18 is a schematic cross-sectional view of an inset type folding door device.
FIG. 19 is a schematic cross-sectional view of an outset type folding door device.
20 is a view corresponding to FIG. 8 showing a conventional example.
FIG. 21 is an exploded perspective view of main parts.
FIG. 22 is an enlarged cross-sectional view of the coupling mechanism portion.
FIG. 23 is equivalent to FIG.
[Explanation of symbols]
42 is a folding door, 43 is a frame, 43a is an upper side of the frame, 43b is a lower side of the frame, 44 and 45 are folding door fittings, 46 is a door fitting, 47 is a frame fitting, 48 is a connecting member, and 49 is a door. Side metal fitting, 50 is a frame side metal fitting, 51 is a connecting member, 56 is a guided member, 61 is a holding plate (holding means), 72 is a roller, 77 is a door wheel, 85 is a rail, 87 is a groove (rail), 88 Is a rail, 89 is a rail, 90 is a groove (rail), 102 is a holding plate (holding means), 111 and 121 are door wheel cases (door wheel support members), 131 and 132 are folding door fittings, and 133 and 134 are Door side metal fittings, 135 and 136 are frame side metal fittings, and 139 and 140 are vertical axes (connection members).

Claims (1)

枠に折戸の端部を移動可能に且つ回動可能に取付けるためのものであって、
折戸に取付けられる戸側金具と、
この戸側金具に回動可能に連結された枠側金具とを具備し、
その枠側金具が、枠の下辺部に対しては、該枠の下辺部に設けられた軌条部上を折戸の荷重を受けつつ転動する戸車を有し、枠の上辺部に対しては、該枠の上辺部に設けられた下面全開形の軌条部に移動可能に嵌合される被ガイド部材を有するようにすると共に、
その被ガイド部材又は前記枠上辺部の軌条部側に、それらの嵌合状態で取付けられて、その軌条部に沿った被ガイド部材の移動を許容しつつ該被ガイド部材を軌条部との嵌合状態に保持する保持手段を設けたことを特徴とする折戸用金具。For movably and pivotally attaching the end of the folding door to the frame,
A door-side bracket attached to the folding door;
A frame-side metal fitting rotatably connected to the door-side metal fitting,
The frame side metal fitting has a door wheel that rolls on the rail provided on the lower side of the frame while receiving the load of the folding door, and the upper side of the frame And having a guided member that is movably fitted to a rail portion of the lower surface fully open provided on the upper side of the frame,
The guide member or the rail on the upper side of the frame is attached in the fitted state, and the guide member is fitted with the rail while allowing the guided member to move along the rail. A folding door bracket provided with holding means for holding in a combined state.

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