JP3926671B2

JP3926671B2 - Arc door opening and closing device

Info

Publication number: JP3926671B2
Application number: JP2002128248A
Authority: JP
Inventors: 健谷水; 賢治上田; 幸也岡本
Original assignee: Ｎｈｎ興産株式会社
Priority date: 2002-04-30
Filing date: 2002-04-30
Publication date: 2007-06-06
Anticipated expiration: 2022-04-30
Also published as: JP2003321971A

Description

【０００１】
【発明の属する技術分野】
本発明は、弧状の横断面形状を有し、弧状の軌道に沿って動く弧状扉を開閉させる弧状扉の開閉装置に関する。
【０００２】
【従来の技術】
従来、弧状扉の開閉装置として、例えば次のようなものが知られている。即ち、この開閉装置は、弧状の横断面をもつ開口部の上縁に、扉の開閉幅に対応する長さをもつ弧状のレールを延設し、このレールに案内される戸車を枢着したブラケットに、弧状扉を吊り下げ、かつ、チェーンを上縁と平行に延設した弧状の平板を固定する一方、開口部の上縁に設けたドアクローザの駆動軸にスプロケットを固定し、このスプロケットを上記チェーンに噛合させて構成される。そして、ドアクローザからスプロケットとチェーンを介して扉に働く閉方向の付勢力に抗して、人手によって扉が開かれる際、ドアクローザ内の作動油などに仕事(エネルギ)を蓄え、この蓄えた仕事で扉を閉動作させるようになっている。
【０００３】
【発明が解決しようとする課題】
ところが、上記従来の弧状扉の開閉装置は、開口部の上縁にレールを延設し、戸車付きブラケットを介して弧状扉をレールに吊り下げ、開口部上縁の所定位置に設けたドアクローザのスプロケットに、チェーンが正確に噛合するように弧状の平板を調整しながら上記ブラケットに固定しなければならない。そのため、部品点数が多くなって開閉装置が大型化するうえ、据え付けに要する手間と時間の増加も加わって、開閉装置が高価になるのみならず、稼動中にトラブルが生じる可能性も高くなるという問題がある。
【０００４】
そこで、本発明の目的は、スプロケットに代えて旋回アームを有するドアクローザを採用し、旋回アームと弧状扉との連結機構を工夫することによって、部品点数を削減して、小型化による省スペースが図れ、広範囲の曲率半径の弧状扉に適用でき、据付、調整、メンテナンスを容易化できる安価かつ信頼性の高い弧状扉の開閉装置を提供することにある。
【０００５】
【課題を解決するための手段】
上記目的を達成するため、請求項１の発明は、弧状の横断面形状を有し、弧状の軌道に沿って動く弧状扉を開閉させる弧状扉の開閉装置において、上記弧状扉が開閉する開口部の枠側に取り付けられ、弧状扉を閉方向に動かすドアクローザと、このドアクローザのアームの先端と上記弧状扉の縦框とを、鉛直方向に相対移動可能、かつ、上記縦框側に設けられた鉛直軸の周りに相対旋回可能に連結する連結機構とを備え、上記連結機構は、上記弧状扉の縦框に上下に間隔を空けて一方の板を固定した一対の蝶番と、この一対の蝶番の他方の板に上下端を固定したガイド部材と、上記ドアクローザのアームの先端に枢着され、上記ガイド部材に案内されて上下動するローラとからなることを特徴とする。
【０００６】
上記弧状扉の開閉装置は、連結機構が、上記弧状扉の縦框に上下に間隔を空けて一方の板を固定した一対の蝶番と、この一対の蝶番の他方の板に上下端を固定したガイド部材と、ドアクローザのアームの先端に枢着され、上記ガイド部材に案内されて上下動するローラとからなる。つまり、弧状扉を閉方向に動かすドアクローザのアームの先端に枢着されたローラが、弧状扉の縦框に一対の蝶番を介して旋回自在に取り付けられたガイド部材に案内されて上下動するようになっている。従って、ドアクローザのアームが扉閉方向に揺動すると、ローラを枢着したアームの先端は、上記ガイド部材と蝶番を介して、弧状扉の縦框に対して円滑に昇降しつつ弧の半径方向に円滑に出没し、この昇降と出没によって常に弧状軌道の略接線方向に向かう閉方向の力を弧状扉に加える。それ故、弧状扉は、弧状軌道に案内されているにも拘らず、ドアクローザによって円滑かつ自動的に全閉される。
この開閉装置は、弧状扉の開閉に、従来のようなチェーン付き平板やスプロケットを用いないので、部品点数の削減と装置の小型化が図れるとともに、据え付けやメインテナンスも容易化できる。
【０００７】
請求項２の弧状扉は、弧状の横断面形状を有し、弧状の軌道に沿って動く弧状扉を開閉させる弧状扉の開閉装置において、上記弧状扉が開閉する開口部の枠側に取り付けられ、弧状扉を閉方向に動かすドアクローザと、このドアクローザのアームの先端と上記弧状扉の縦框とを、鉛直方向に相対移動可能に連結する連結機構と、上記アームの中間部に設けられ、アームの先端側を上記弧状扉の厚さ方向に揺動させる蝶番とを備えたことを特徴とする。
【０００８】
上記弧状扉の開閉装置は、ドアクローザのアームの中間部に蝶番を設けて、アームの先端を弧状扉の厚さ方向に揺動させるようになっている。従って、アームの先端は、縦框にこの縦框側の鉛直軸の周りに相対旋回可能に連結機構で連結された請求項１の場合に比して、弧状扉の厚さ方向に大きく揺動、つまり弧の半径方向に大きく出没する。それ故、アームの先端は、曲率半径の小さい弧状軌道に案内される曲率半径の小さい弧状扉の縦框の動きに追従でき、常に弧状軌道の略接線方向に向かう閉方向の力を弧状扉に加えて、弧状扉を円滑かつ自動的に全閉する。
この開閉装置も、弧状扉の開閉に、従来のようなチェーン付き平板やスプロケットを用いないので、部品点数の削減と装置の小型化が図れるとともに、据え付けやメインテナンスも容易化できる。
【０００９】
【００１０】
【００１１】
請求項３の弧状扉の開閉装置は、上記請求項２の連結機構が、上記弧状扉の縦框と平行に配置され、上下端をこの縦框に固定したガイド部材と、このガイド部材に案内されて上下動するローラと、このローラの支軸を上記ドアクローザのアームの先端に連結する球面継手とからなることを特徴とする。
【００１２】
上記弧状扉の開閉装置は、ドアクローザのアームの先端に球面継手を介して支軸が連結されたローラが、弧状扉の縦框に上下端を固定したガイド部材に案内されて上下動するようになっている。従って、ドアクローザのアームが扉閉方向に揺動すると、アームの先端の球面継手によって自在に首振り運動する支軸をもつローラが、ガイド部材に案内されて縦框に沿って昇降しつつ常に弧状軌道の略接線方向に向かう閉方向の力を弧状扉に加える。それ故、弧状軌道に案内される弧状扉は、ドアクローザによってより円滑かつ自動的に全閉される。
この開閉装置も、弧状扉の開閉に、従来のようなチェーン付き平板やスプロケットを用いないので、部品点数の削減と装置の小型化が図れるとともに、据え付けやメインテナンスも容易化できる。
【００１３】
【発明の実施の形態】
以下、本発明を図示の実施の形態により詳細に説明する。
図１(Ａ),(Ｂ)は、弧状扉の開閉装置の一実施形態を示す夫々平面図,正面図である。この開閉装置は、円弧状の横断面形状を有して、円弧状の軌道１２に沿って往復動して例えば車両用トイレ等の開口部１３を開閉する弧状扉の１例としての円形扉１１を自動閉動させるもので、軌道１２含む鉛直面内でアーム３が揺動するように開口部１３の上枠１４に本体２を取り付けたドアクローザ１と、このドアクローザ１のアーム３の先端と円形扉１１の縦框１１aとを、鉛直方向に相対移動可能、かつ、縦框側の鉛直軸Ａvの周りに相対旋回可能に連結する連結機構４とで構成される。
【００１４】
上記連結機構４は、図２(Ａ)の詳細平面図および図２(Ｂ)の詳細正面図にも示すように、円形扉の縦框に上下に間隔を空けて外側の板５o,５o'を固定した一対の蝶番５,５'と、この一対の蝶番５,５'の内側の板５i,５i'に上下端を固定したＣ字状の横断面形状をもつガイド部材６と、ドアクローザ１のアーム３の先端に回転自在に枢着され、ガイド部材６に嵌合して上下動するローラ７とからなる。
上記アーム３は、図１(Ｂ)に示すように、中央よりやや先端側を鈍角に折り曲げて、２点鎖線で示す円形扉１１の全開位置で、先端側が鉛直のガイド部材６に揃って良好に納まるようにしている。また、折り曲げ部よりも先端側を図１(Ａ)に示すように、本体２に近づくように段状に折り曲げて、縦框の厚みの略中心に閉方向の力が加わるようにしている。円形扉１１は、図１(Ｂ)の１点鎖線の円弧軌跡を描いて揺動するアーム３によって、輪郭を実線で示した全閉位置まで閉動させられる。
【００１５】
上記蝶番５'は、図２(Ａ),(Ｂ)の詳細平面図,詳細正面図に示すように、取付板８を介して外側の板５o'を縦框１１aに固定し、内側の板５i'にガイド部材６の下端を固定している。従って、ガイド部材６およびこれに嵌合するローラ７を枢着したアーム３の先端は、図２(Ｃ)の矢印で示すように、縦框１１aに対して蝶番５'の支軸５a'(既述の鉛直軸Ａv)の周りに相対旋回するので、円弧軌道１２を往復する円形扉の縦框１１aの円弧半径方向内外への動きに追従して、縦框１１aの厚みの略中心に常に円弧の略接線方向に向かう閉方向の力を加えることができる。
なお、図２(Ｂ),(Ｃ)には、ローラを枢着したアームの先端は、省略されている。また、ガイド部材６の上下端は、ローラ７が抜け出さないように図示しない蓋で閉ざされている。
【００１６】
上記構成の円形扉の開閉装置は、次のように動作する。
図１(Ｂ)の実線で示す全閉位置にある円形扉１１が、人手によって２点鎖線で示す全開位置に向かって右方向へ開かれると、円形扉１１の縦框１１aに一対の蝶番５,５'を介して取り付けられたガイド部材６にローラ７が嵌合されたアーム３は、ローラ７がガイド部材６に案内されて下降するに伴って、図中の１点鎖線の軌跡で示すように揺動するとともに、図１(Ａ)に示すように、円形扉１１の縦框１１aが、円弧状軌道１２を右へ移動するにつれて上枠１４に固定されたドアクローザ１に対して円弧の半径方向外側へ動くので、図２(Ａ)に示す蝶番５,５'が閉方向に応動して、ガイド部材６に嵌合するアーム先端のローラ７と縦框１１aの連結を維持させる。アーム３がその基端と先端を結ぶ直線が鉛直になる位置まで揺動した扉半開位置で、ローラ７は下降から上昇に転じ、縦框１１aは円弧の半径方向内側へと動きを転じて蝶番５,５'が開方向に応動し始め、ローラ７が上死点に達すると、円形扉１１は、図中の２点鎖線で示す全開状態となり、アーム３は、先端側がガイド部材６に一直線に揃った省スペースな納まり状態となる。
人手によるこの扉開動は、アーム３による扉閉方向への付勢力に抗して行なわれるので、これによってドアクローザ内の油圧回路に仕事つまりエネルギが蓄えられる。
【００１７】
次に、図１(Ｂ)の２点鎖線で示す全開状態の円形扉１１から手を離すと、ドアクローザ１に蓄えられたエネルギによって、アーム３が１点鎖線で示す軌跡に沿って左方向に揺動し始め、アーム先端のローラ７が、蝶番５,５'を介して縦框１１aに取り付けられたガイド部材６に沿って下降するとともに、縦框１１aが図１(Ａ)の円弧状軌道１２を左へ移動するにつれて円弧の半径方向外側へ動くので、蝶番５,５'が閉方向へ応動し、上記扉半開位置を過ぎると、ローラ７が上昇に転じ、蝶番が開方向へ応動して、ガイド部材６に嵌合するローラ７と縦框１１aの連結を維持させる。つまり、蝶番５,５'の縦框１１a側の支軸５a,５a'の周りに旋回するガイド部材６内で昇降する上記ローラ７によって、縦框１１aの厚みの略中心に常に円弧軌道１２の略接線方向に向かって円形扉１１を閉じる力がアーム３から加わるようになっている。ドアクローザ１に蓄えられ、アーム３を介して加えられる上記扉閉方向の力によって、円形扉１１は、図２(Ｂ)の実線で示す全閉状態に円滑かつ自動的に閉じられる。
【００１８】
上記円形扉１１の開閉装置は、従来例で述べた開閉装置のようなチェーン付き平板やスプロケットを用いることなく、ドアクローザ１のアーム３とアームの先端を円形扉１１の縦框１１aに連結する蝶番５,５'、ガイド部材６、ローラ７からなる簡素な構造の連結機構４で構成されているので、部品点数を削減でき、開閉装置を小型軽量化して省スペースおよびコストダウンを図れるうえ、手間と時間を要さず容易に据え付けることができる。また、開閉装置の調整やメインテナンスも、ドアクローザ１の速度を油圧調整ねじで調整し、継手部のグリスアップをする程度で済むうえ、構造が簡素なので稼動中にトラブルが生じる可能性も低いという利点がある。
【００１９】
図３(Ａ),(Ｂ)は、弧状扉の開閉装置の他の実施形態を示す夫々平面図,正面図である。この開閉装置は、円形扉１５の曲率半径が図１の円形扉１１の曲率半径よりも小さく、図１とは逆に平面図において円形扉１５が下に凸になるように配置されている点およびアーム１６と連結機構４の構成が異なる点を除いて、図１で述べた実施形態と同じ構成であり、同じ部材には同一番号を付して説明を省略する。
【００２０】
上記アーム１６は、鈍角の折り曲げ部より基端側に、アーム１６の先端側を円弧扉１５の厚さ方向に揺動させる蝶番１８を設けている。この蝶番１８は、図４(Ａ),(Ｂ)の詳細正面図,詳細側面図に示すように、アーム１６の基端側の板面と先端側の板面を、支軸１８cに旋回自在に枢着された一方の板１８aと他方の板１８bで連結しており、アーム１６の先端側は、図４(Ｂ)の矢印で示す円弧扉１５の厚さ方向、つまり図３(Ｂ)の紙面に垂直な方向に揺動できるようになっている。
上記連結機構４は、図１で述べた蝶番５,５'を省略し、縦框１５aに上下に間隔を空けて固定した取付板８にガイド部材６の上下端を固定し、このガイド部材６にアーム３の先端に枢着したローラ７を上下動自在に嵌合している。
【００２１】
上記構成の円形扉１５の開閉装置は、ガイド部材６が蝶番を介さず縦框１５aに直接固定されている代わりに、アーム１６の中間部に蝶番１８が設けられている。従って、ローラ７を枢着したアーム１６の先端は、図１の実施形態よりも円形扉１５の厚さ方向、つまり円弧状軌道の半径方向に大きく動くことができ、図１よりも曲率半径の小さい円弧軌道に案内されるため半径方向の移動幅が大きくなる縦框１５aの動きに応動でき、ガイド部材６を介するアーム先端のローラ７と縦框１５aの連結が円滑に維持される。
ガイド部材６に沿うローラ７の昇降に伴うアーム１６の扉移動面内における揺動は、図１で述べたのと同じであるから、円形扉１５は、図１の実施形態で述べたと同様に、扉開時にドアクローザ１に蓄えたエネルギによって、図３(Ｂ)の実線で示す全閉状態に円滑かつ自動的に閉じられる。
【００２２】
上記円形扉１５の開閉装置も、従来例で述べた開閉装置のようなチェーン付き平板やスプロケットを用いず、ドアクローザ１のアーム先端に枢着したローラ７とこれを縦框１５aに滑動自在に連結するガイド部材６からなる簡素な構造の連結機構で構成されているので、部品点数の削減、開閉装置の小型軽量化およびコストダウン、据え付け、調整およびメインテナンスの容易化を図ることができる。
【００２３】
図５は、弧状扉の開閉装置の他の実施形態を示す平面図である。この開閉装置は、図３,図４で述べた実施形態のアーム１６に設けた蝶番１８を省略し、これに代えて、図１と同様のアーム３の先端に球面継手を介してローラを枢支している。即ち、ローラ７は、図示しないベアリングを介して支軸１９に枢着され、この支軸１９に球体２０を一体に嵌合し、この球体２０をアーム３の先端に設けた球面座２１に旋回自在に支承する一方、一対の取付板８により円形扉１１の縦框１１aに固定した図３で述べたと同様のガイド部材６に上下動自在に嵌合している。
【００２４】
上記構成の円形扉１１の開閉装置は、ガイド部材６が蝶番を介さず縦框１１aに直接固定されている代わりに、ガイド部材６に上下動自在に嵌合するローラ６が、球面座２１と球体２０からなる球面継手によってアーム３の先端に対して自在に首振り運動する支軸１９に回転自在に枢着されている。また、この円形扉１１は、図１の円形扉１１と同じく、図３で述べた円形扉１５よりも曲率半径が大きいので、開閉に伴う縦框１１aの半径方向の移動幅が小さい。従って、蝶番の開閉に代わる支軸１９の首振り運動によって、上記縦框１１aの半径方向の動きに応動できるうえ、扉開閉に伴うローラ７の上下動が、蝶番による場合よりも円滑に行なえるから、ガイド部材６を介するアーム先端のローラ７と縦框１１aの連結が円滑に維持される。
【００２５】
上記円形扉１１の開閉装置も、従来例で述べた開閉装置のようなチェーン付き平板やスプロケットを用いず、ドアクローザ１のアーム先端に枢着したローラ７とこれを縦框１１aに滑動自在に連結するガイド部材６からなる簡素な構造の連結機構で構成されているので、部品点数の削減、開閉装置の小型軽量化およびコストダウン、据え付け、調整およびメインテナンスの容易化を図ることができる。
【００２６】
上記実施形態では、弧状扉の１例として横断面形状が円弧の円形扉について説明したが、本発明は、弧状扉の１例である横断面形状が楕円弧をもつ楕円扉についても適用できる。また、図５で述べた球面継手を介してローラを支承するアーム３の中間部に、図４と同様の蝶番１８を設けて、曲率半径の小さい弧状扉に適用することもできる。
さらに、本発明の開閉装置は、車両のトイレ用の引き戸、妻引き戸、一般の間仕切りや住宅用の引き戸など種々の弧状扉を半自動開閉するのに用いることができる。
【００２７】
【発明の効果】
以上の説明で明らかなように、請求項１の発明は、弧状扉を閉方向に動かすドアクローザのアームの先端と、弧状の横断面形状をもち、弧状の軌道に沿って動く弧状扉の縦框とを、弧状扉の縦框に上下に間隔を空けて一方の板を固定した一対の蝶番と、この一対の蝶番の他方の板に上下端を固定したガイド部材と、ドアクローザのアームの先端に枢着され、上記ガイド部材に案内されて上下動するローラとからなる連結機構によって連結している。つまり、ドアクローザのアームの先端に枢着されたローラが、弧状扉の縦框に一対の蝶番を介して旋回自在に取り付けられたガイド部材に案内されて上下動するようになっている。従って、ドアクローザのアームが扉閉方向に揺動すると、ローラを枢着したアームの先端が、ガイド部材と蝶番を介して弧状扉の縦框に対して昇降しつつ弧の半径方向に円滑に出没して、弧状扉に常に弧状軌道の接線方向に向かう閉方向の力を加える。従って、従来のようなチェーン付き平板やスプロケットを要さず、部品点数の削減と装置の小型化および据え付けとメインテナンスの容易化を図りつつ、円弧扉を円滑かつ自動的に閉動させることができる。
【００２８】
請求項２の弧状扉の開閉装置は、弧状扉を閉方向に動かすドアクローザのアームの先端と、弧状の横断面形状をもち、弧状の軌道に沿って動く弧状扉の縦框とを、連結機構によって鉛直方向に相対移動可能に連結するとともに、アームの中間部に、アームの先端を弧状扉の厚さ方向に揺動させる蝶番を設けているので、アームの先端が、曲率半径の小さい弧状軌道に案内される曲率半径の小さい弧状扉の縦框の半径方向移動に追従でき、弧状扉に常に弧状軌道の略接線方向に向かう閉方向の力を加える。従って、従来のようなチェーン付き平板やスプロケットを要さず、部品点数の削減と装置の小型化および据え付けとメインテナンスの容易化を図りつつ、円弧扉を円滑かつ自動的に閉動させることができる。
【００２９】
【００３０】
請求項３の弧状扉の開閉装置は、ドアクローザのアームの先端に球面継手を介して支軸が連結されたローラが、弧状扉の縦框に上下端を固定したガイド部材に案内されて上下動するようになっているので、ドアクローザのアームが扉閉方向に揺動すると、アームの先端の球面継手によって自在に首振り運動する支軸をもつローラが、ガイド部材に案内されて縦框に沿って昇降しつつ弧の半径方向に円滑に出没して、弧状扉に常に弧状軌道の略接線方向に向かう閉方向の力を加える。従って、従来のようなチェーン付き平板やスプロケットを要さず、部品点数の削減と装置の小型化および据え付けとメインテナンスの容易化を図りつつ、円弧扉を円滑かつ自動的に閉動させることができる。
【図面の簡単な説明】
【図１】本発明の弧状扉の開閉装置の一実施形態を示す夫々平面図,正面図である。
【図２】図１のIIa部分とIIb部分の詳細図および蝶番の旋回を示す平面図である。
【図３】本発明の弧状扉の開閉装置の他の実施形態を示す夫々平面図,正面図である。
【図４】図３(Ｂ)のIV部分の詳細正面図および詳細側面図である。
【図５】本発明の弧状扉の開閉装置の他の実施形態を示す平面図である。
【符号の説明】
１ドアクローザ
２本体
３,１６アーム
４連結機構
５,５',１８蝶番
６ガイド部材
７ローラ
８取付板
１１,１５円形扉
１１a,１５a 縦框
１２円弧状軌道
１３開口部
１９支軸
２０球体
２１球面座[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an open / close device for an arcuate door that has an arcuate cross-sectional shape and opens and closes an arcuate door that moves along an arcuate track.
[0002]
[Prior art]
Conventionally, for example, the following are known as open / close devices for arcuate doors. That is, in this opening / closing device, an arc-shaped rail having a length corresponding to the opening / closing width of the door is extended to the upper edge of the opening having an arc-shaped cross section, and a door wheel guided by this rail is pivotally attached. The arc-shaped door is suspended from the bracket and the arc-shaped flat plate with the chain extending parallel to the upper edge is fixed, while the sprocket is fixed to the drive shaft of the door closer provided at the upper edge of the opening. It is configured to mesh with the chain. And when the door is opened manually by the door closer through the sprocket and chain through the sprocket and chain, work (energy) is stored in the hydraulic fluid in the door closer, and the stored work The door is closed.
[0003]
[Problems to be solved by the invention]
However, the conventional arc door opening and closing device described above is a door closer provided at a predetermined position on the upper edge of the opening by extending a rail to the upper edge of the opening and suspending the arc door through the bracket with a door wheel. The sprocket must be fixed to the bracket while adjusting the arc-shaped flat plate so that the chain can be accurately engaged with the sprocket. Therefore, the number of parts increases, the switchgear becomes larger, and the labor and time required for installation are increased, which not only makes the switchgear expensive, but also increases the possibility of trouble during operation. There's a problem.
[0004]
Accordingly, an object of the present invention is to employ a door closer having a swivel arm instead of a sprocket, and by devising a coupling mechanism between the swivel arm and the arcuate door, the number of parts can be reduced and space saving can be achieved by downsizing. An object of the present invention is to provide an inexpensive and reliable open / close device for an arc-shaped door that can be applied to an arc-shaped door having a wide range of curvature radii and can facilitate installation, adjustment, and maintenance.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, an invention according to claim 1 is an open / close device for an arcuate door that has an arcuate cross-sectional shape and opens and closes an arcuate door that moves along an arcuate track. The door closer that moves the arcuate door in the closing direction, and the arm closer of the door closer and the vertical shaft of the arcuate door are relatively movable in the vertical direction and provided on the vertical wall side . And a pair of hinges having one plate fixed to the vertical wall of the arcuate door with a vertical space therebetween, and the pair of hinges. A guide member having upper and lower ends fixed to the other plate, and a roller pivotally attached to the tip of an arm of the door closer and guided up and down by the guide member .
[0006]
In the arc door opening and closing device, the coupling mechanism has a pair of hinges fixed to one plate with a vertical space between the arcuate doors and an upper and lower ends fixed to the other plate of the pair of hinges. It consists of a guide member and a roller pivotally attached to the end of the arm of the door closer and guided up and down by the guide member. In other words, the roller pivotally attached to the end of the door closer arm that moves the arcuate door in the closing direction is moved up and down by being guided by a guide member that is pivotably attached to the vertical shaft of the arcuate door via a pair of hinges. It has become. Therefore, when the arm of the door closer swings in the door closing direction, the tip of the arm pivotally attached to the roller moves up and down smoothly with respect to the vertical shaft of the arcuate door via the guide member and the hinge , and the radial direction of the arc The up-and-down movement and the up-and-down movement always apply a closing force toward the tangential direction of the arc-shaped track to the arc-shaped door. Therefore, although the arcuate door is guided by the arcuate track, the door is closed smoothly and automatically by the door closer.
The opening and closing device, opening and closing of the arcuate door does not use a conventional chain with flat or sprocket like, with can be miniaturized to reduce the apparatus parts, installation and maintenance can be facilitated.
[0007]
The arcuate door according to claim 2 has an arcuate cross-sectional shape, and is attached to the frame side of the opening part where the arcuate door opens and closes in the arcuate door opening and closing device that opens and closes the arcuate door that moves along the arcuate track. A door closer that moves the arcuate door in the closing direction, a connecting mechanism that connects the tip of the arm of the door closer and the vertical shaft of the arcuate door so as to be relatively movable in the vertical direction, and an arm provided in the middle of the arm. And a hinge for swinging the tip end side of the arcuate door in the thickness direction of the arcuate door.
[0008]
The arc-shaped door opening and closing device is provided with a hinge at the middle of the door closer arm so that the tip of the arm swings in the thickness direction of the arc-shaped door. Therefore, the tip of the arm swings greatly in the thickness direction of the arcuate door as compared with the case of claim 1 in which the tip of the arm is connected to the vertical shaft by a connecting mechanism so as to be relatively rotatable around the vertical axis on the vertical side. That is, it appears greatly in the radial direction of the arc. Therefore, the tip of the arm can follow the vertical movement of the arcuate door with a small radius of curvature guided by the arcuate track with a small radius of curvature, and always applies a force in the closing direction toward the tangential direction of the arcuate track to the arcuate door. In addition, the arc door is fully closed automatically and smoothly.
The switchgear also the opening and closing of the arcuate door does not use a conventional chain with flat or sprocket like, with can be miniaturized to reduce the apparatus parts, installation and maintenance can be facilitated.
[0009]
[0010]
[0011]
According to a third aspect of the present invention, there is provided an arcuate door opening and closing device in which the coupling mechanism of the second aspect is arranged in parallel with the vertical shaft of the arcuate door, and the guide member having the upper and lower ends fixed to the vertical shaft and the guide member guides And a roller that moves up and down, and a spherical joint that connects the support shaft of the roller to the tip of the arm of the door closer.
[0012]
In the above arc door opening and closing device, a roller having a support shaft connected to the end of a door closer arm via a spherical joint is guided by a guide member having upper and lower ends fixed to the vertical shaft of the arc door to move up and down. It has become. Therefore, when the arm of the door closer swings in the door closing direction, the roller having the support shaft that freely swings by the spherical joint at the end of the arm is guided by the guide member and is always raised and lowered along the vertical shaft. A force in the closing direction toward the tangential direction of the track is applied to the arcuate door. Therefore, the arcuate door guided by the arcuate track is more fully and automatically closed by the door closer.
The switchgear also the opening and closing of the arcuate door does not use a conventional chain with flat or sprocket like, with can be miniaturized to reduce the apparatus parts, installation and maintenance can be facilitated.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.
1A and 1B are a plan view and a front view, respectively, showing an embodiment of an arcuate door opening and closing device. The closing device has an arcuate cross-sectional shape, a circle as one example of the arcuate door for opening and closing the opening 13 of the toilet or the like for reciprocates example vehicle along an arcuate track 12 Katachitobira 11, the door closer 1 having the main body 2 attached to the upper frame 14 of the opening 13 so that the arm 3 swings in a vertical plane including the track 12, and the tip of the arm 3 of the door closer 1. A vertical mechanism 11a of the circular door 11 is configured by a connecting mechanism 4 that is connected to the vertical axis Av on the vertical axis side so as to be relatively movable in a vertical direction and to be relatively rotatable.
[0014]
As shown in the detailed plan view of FIG. 2 (A) and the detailed front view of FIG. 2 (B), the connecting mechanism 4 has outer plates 5o, 5o ′ spaced apart vertically from the vertical wall of the circular door. A pair of hinges 5 and 5 ′, a guide member 6 having a C-shaped cross-sectional shape with upper and lower ends fixed to plates 5 i and 5 i ′ inside the pair of hinges 5 and 5 ′, and the door closer 1. It comprises a roller 7 which is pivotally attached to the tip of the arm 3 and moves up and down by fitting with the guide member 6.
As shown in FIG. 1 (B), the arm 3 is bent slightly at the tip side from the center at an obtuse angle, and at the fully open position of the circular door 11 shown by a two-dot chain line, the tip side is aligned with the vertical guide member 6 and is good. To fit in. Further, as shown in FIG. 1A, the front end side of the bent portion is bent in a step shape so as to approach the main body 2, and a force in the closing direction is applied to the approximate center of the thickness of the vertical hook. The circular door 11 is closed to the fully closed position whose outline is indicated by a solid line by the arm 3 that swings while drawing an arc locus of a one-dot chain line in FIG.
[0015]
As shown in the detailed plan view and the detailed front view of FIGS. 2 (A) and 2 (B), the hinge 5 ′ fixes the outer plate 5o ′ to the vertical rod 11a via the mounting plate 8, and the inner plate. The lower end of the guide member 6 is fixed to 5i ′. Therefore, the distal end of the arm 3 pivotally attached to the guide member 6 and the roller 7 fitted to the guide member 6 has a support shaft 5a ′ (hinge 5 ′) with respect to the vertical rod 11a as shown by an arrow in FIG. Since it makes a relative turn around the aforementioned vertical axis Av), it follows the movement of the vertical shaft 11a of the circular door reciprocating along the circular arc track 12 inward and outward in the radial direction of the arc, and is always at the approximate center of the thickness of the vertical shaft 11a. A force in the closing direction toward the direction substantially tangential to the arc can be applied.
2B and 2C, the tip of the arm pivotally attached to the roller is omitted. The upper and lower ends of the guide member 6 are closed with a lid (not shown) so that the roller 7 does not come out.
[0016]
The opening / closing device for the circular door configured as described above operates as follows.
When the circular door 11 in the fully closed position indicated by the solid line in FIG. 1B is opened to the right by the human hand toward the fully open position indicated by the two-dot chain line, a pair of hinges 5 is provided on the vertical rod 11a of the circular door 11. , 5 ', the arm 3 in which the roller 7 is fitted to the guide member 6 is shown by a one-dot chain line locus in the drawing as the roller 7 is guided by the guide member 6 and descends. As shown in FIG. 1A, the vertical rod 11a of the circular door 11 moves in a circular arc with respect to the door closer 1 fixed to the upper frame 14 as it moves to the right along the circular arc-shaped track 12. Since it moves outward in the radial direction, the hinges 5 and 5 'shown in FIG. 2 (A) are moved in the closing direction to maintain the connection between the roller 7 at the tip of the arm fitted to the guide member 6 and the vertical rod 11a. At the door half-open position in which the straight line connecting the base end and the tip of the arm 3 swings to a vertical position, the roller 7 turns from descending to rising, and the vertical rod 11a turns to the inside in the radial direction of the arc. When 5 and 5 'start to respond in the opening direction and the roller 7 reaches the top dead center, the circular door 11 is fully opened as indicated by a two-dot chain line in the figure, and the arm 3 is aligned with the guide member 6 at the tip side. It becomes a space-saving fit state.
This manual door opening operation is performed against the urging force of the arm 3 in the door closing direction, so that work, that is, energy is stored in the hydraulic circuit in the door closer.
[0017]
Next, when the hand is released from the fully opened circular door 11 shown by the two-dot chain line in FIG. 1B, the arm 3 moves leftward along the locus shown by the one-dot chain line by the energy stored in the door closer 1. The roller 7 at the tip of the arm begins to swing and descends along the guide member 6 attached to the vertical rod 11a via the hinges 5 and 5 ', and the vertical rod 11a moves to the arcuate track of FIG. 12 moves to the left in the radial direction of the arc as it moves to the left, so that the hinges 5 and 5 'move in the closing direction, and after passing through the door half-open position, the roller 7 turns upward and the hinges move in the opening direction. Thus, the connection between the roller 7 fitted to the guide member 6 and the vertical rod 11a is maintained. That is, the circular orbit 12 is always formed at the approximate center of the thickness of the vertical rod 11a by the roller 7 that moves up and down in the guide member 6 that rotates around the supporting shafts 5a and 5a 'on the vertical rod 11a side of the hinges 5 and 5'. A force for closing the circular door 11 toward the substantially tangential direction is applied from the arm 3. The circular door 11 is smoothly and automatically closed to the fully closed state indicated by the solid line in FIG. 2 (B) by the force in the door closing direction stored in the door closer 1 and applied via the arm 3.
[0018]
The opening / closing device of the circular door 11 is a hinge that connects the arm 3 of the door closer 1 and the tip of the arm to the vertical rod 11a of the circular door 11 without using a plate with a chain or a sprocket like the opening / closing device described in the prior art. 5 and 5 ', guide member 6 and roller 7 are composed of a simple connecting mechanism 4. Therefore, the number of parts can be reduced, the switchgear can be made smaller and lighter, and space and cost can be reduced. And can be installed easily without the need for time. In addition, the adjustment and maintenance of the opening / closing device requires only the adjustment of the speed of the door closer 1 with the hydraulic adjustment screw and grease of the joint, and the structure is simple, so there is less possibility of trouble during operation. There is.
[0019]
3A and 3B are a plan view and a front view, respectively, showing another embodiment of the arc-shaped door opening and closing device. This open / close device is arranged such that the radius of curvature of the circular door 15 is smaller than the radius of curvature of the circular door 11 of FIG. 1, and the circular door 15 is convex downward in the plan view contrary to FIG. Except for the differences between the configuration of the arm 16 and the coupling mechanism 4, the configuration is the same as that of the embodiment described with reference to FIG.
[0020]
The arm 16 is provided with a hinge 18 that swings the distal end side of the arm 16 in the thickness direction of the arc door 15 on the proximal end side from the obtuse bent portion. As shown in the detailed front view and detailed side view of FIGS. 4 (A) and 4 (B), the hinge 18 can pivot on the support shaft 18c on the base end side plate surface and the distal end side plate surface of the arm 16. Are connected by one plate 18a and the other plate 18b pivoted to each other, and the distal end side of the arm 16 is in the thickness direction of the arc door 15 indicated by the arrow in FIG. 4B, that is, FIG. 3B. Can be swung in a direction perpendicular to the paper surface.
In the connecting mechanism 4, the hinges 5, 5 ′ described in FIG. 1 are omitted, and the upper and lower ends of the guide member 6 are fixed to the mounting plate 8 fixed to the vertical rod 15 a with a space in the vertical direction. A roller 7 pivotally attached to the tip of the arm 3 is fitted so as to be movable up and down.
[0021]
In the opening / closing device for the circular door 15 having the above-described configuration, a hinge 18 is provided at an intermediate portion of the arm 16 instead of the guide member 6 being directly fixed to the vertical rod 15a without a hinge. Therefore, the tip of the arm 16 pivotally attached to the roller 7 can move more greatly in the thickness direction of the circular door 15, that is, in the radial direction of the arcuate track than in the embodiment of FIG. Since it is guided by a small arcuate track, it can respond to the movement of the vertical rod 15a having a large radial movement width, and the connection between the roller 7 at the arm tip via the guide member 6 and the vertical rod 15a is smoothly maintained.
Since the swing in the door moving surface of the arm 16 accompanying the raising and lowering of the roller 7 along the guide member 6 is the same as described in FIG. 1, the circular door 15 is the same as described in the embodiment of FIG. When the door is opened, the energy stored in the door closer 1 is smoothly and automatically closed to the fully closed state shown by the solid line in FIG.
[0022]
The opening and closing device for the circular door 15 is also connected to the vertical rod 15a so as to be slidable without using a plate with a chain or a sprocket like the opening and closing device described in the prior art, and the roller 7 pivotally attached to the arm tip of the door closer 1. Therefore, the number of parts can be reduced, the switchgear can be reduced in size and weight, the cost can be reduced, and installation, adjustment, and maintenance can be facilitated.
[0023]
FIG. 5 is a plan view showing another embodiment of the arcuate door opening and closing device. In this switchgear, the hinge 18 provided on the arm 16 of the embodiment described with reference to FIGS. 3 and 4 is omitted, and instead, a roller is pivotally connected to the tip of the arm 3 similar to FIG. 1 via a spherical joint. I support. That is, the roller 7 is pivotally attached to a support shaft 19 via a bearing (not shown), and a sphere 20 is integrally fitted to the support shaft 19, and the sphere 20 is turned to a spherical seat 21 provided at the tip of the arm 3. While freely supporting, it is fitted to a guide member 6 similar to that described with reference to FIG. 3 fixed to the vertical rod 11a of the circular door 11 by a pair of mounting plates 8 so as to be movable up and down.
[0024]
In the opening / closing device for the circular door 11 having the above-described configuration, instead of the guide member 6 being directly fixed to the vertical shaft 11a without a hinge, the roller 6 fitted to the guide member 6 so as to be movable up and down is A spherical joint composed of a sphere 20 is pivotally attached to a support shaft 19 that swings freely with respect to the tip of the arm 3. Moreover, since this circular door 11 has a larger radius of curvature than the circular door 15 described in FIG. 3, similarly to the circular door 11 in FIG. 1, the moving width in the radial direction of the vertical rod 11 a accompanying opening and closing is small. Therefore, by swinging the support shaft 19 instead of opening and closing the hinge, it is possible to respond to the radial movement of the vertical rod 11a, and the vertical movement of the roller 7 accompanying opening and closing of the door can be performed more smoothly than in the case of the hinge. Therefore, the connection between the roller 7 at the tip of the arm and the vertical rod 11a through the guide member 6 is smoothly maintained.
[0025]
The opening / closing device of the circular door 11 is also connected to the roller 11a slidably with the roller 7 pivotally attached to the arm tip of the door closer 1 without using a plate with a chain or a sprocket like the opening / closing device described in the prior art. Therefore, the number of parts can be reduced, the switchgear can be reduced in size and weight, the cost can be reduced, and installation, adjustment, and maintenance can be facilitated.
[0026]
In the above-described embodiment, a circular door having a circular cross-sectional shape has been described as an example of the arc-shaped door, but the present invention can also be applied to an elliptical door having an elliptical arc-shaped cross-sectional shape, which is an example of the arc-shaped door. Further, a hinge 18 similar to that shown in FIG. 4 may be provided at the intermediate portion of the arm 3 that supports the roller via the spherical joint described with reference to FIG. 5, and the present invention can be applied to an arcuate door having a small curvature radius.
Furthermore, the opening / closing device of the present invention can be used to semi-automatically open and close various arc-shaped doors such as sliding doors for vehicle toilets, sliding doors for doors, general partitions, and sliding doors for houses.
[0027]
【The invention's effect】
As is apparent from the above description, the invention of claim 1 is directed to the front end of the door closer arm that moves the arcuate door in the closing direction, and the vertical shaft of the arcuate door having an arcuate cross-sectional shape and moving along the arcuate track. A pair of hinges with one plate fixed to the vertical wall of the arcuate door with a vertical gap, a guide member with upper and lower ends fixed to the other plate of the pair of hinges, and the end of the door closer arm is pivotally mounted, it is connected by a connecting mechanism comprising a roller that moves vertically while being guided by the guide member. In other words, the roller pivotally attached to the tip of the arm of the door closer moves up and down while being guided by the guide member pivotally attached to the vertical shaft of the arcuate door via a pair of hinges. Therefore, when the arm of the door closer swings in the door closing direction, the tip of the arm pivotally attached to the roller smoothly moves up and down in the radial direction of the arc while moving up and down with respect to the vertical shaft of the arcuate door via the guide member and the hinge. Thus, a force in the closing direction toward the tangential direction of the arcuate track is always applied to the arcuate door. Therefore, it is possible to smoothly and automatically close the arc door while reducing the number of parts, downsizing the device, facilitating installation and maintenance, without the need for a flat plate with a chain or a sprocket as in the past. .
[0028]
An opening / closing device for an arcuate door according to claim 2 includes: a connecting mechanism comprising: a distal end of an arm of a door closer that moves the arcuate door in a closing direction; Are connected to each other so that they can move relative to each other in the vertical direction, and a hinge that swings the tip of the arm in the thickness direction of the arcuate door is provided in the middle of the arm. It is possible to follow the radial movement of the vertical shaft of the arc-shaped door with a small radius of curvature guided to the arc, and always applies a closing force toward the substantially tangential direction of the arc-shaped track to the arc-shaped door. Therefore, it is possible to smoothly and automatically close the arc door while reducing the number of parts, downsizing the device, facilitating installation and maintenance, without the need for a flat plate with a chain or a sprocket as in the past. .
[0029]
[0030]
According to a third aspect of the present invention, there is provided an open / close device for an arcuate door in which a roller having a support shaft coupled to the tip of a door closer arm via a spherical joint is guided by a guide member having upper and lower ends fixed to the vertical shaft of the arcuate door. Therefore, when the door closer arm swings in the door closing direction, a roller having a support shaft that freely swings by a spherical joint at the end of the arm is guided by the guide member along the vertical shaft. As it moves up and down, it smoothly appears and disappears in the radial direction of the arc, and a force in the closing direction toward the tangential direction of the arc-shaped track is always applied to the arc-shaped door. Therefore, it is possible to smoothly and automatically close the arc door while reducing the number of parts, downsizing the device, and facilitating installation and maintenance without the need for a flat plate with a chain or a sprocket. .
[Brief description of the drawings]
FIG. 1 is a plan view and a front view, respectively, showing an embodiment of an arcuate door opening and closing device of the present invention.
FIG. 2 is a detailed view of the IIa and IIb portions of FIG. 1 and a plan view showing the rotation of the hinge.
FIGS. 3A and 3B are a plan view and a front view, respectively, showing another embodiment of an arc door opening and closing device of the present invention.
4 is a detailed front view and a detailed side view of an IV portion in FIG. 3 (B). FIG.
FIG. 5 is a plan view showing another embodiment of the arcuate door opening and closing device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Door closer 2 Main body 3,16 Arm 4 Coupling mechanism 5,5 ', 18 Hinge 6 Guide member 7 Roller 8 Mounting plate 11,15 Circular door 11a, 15a Vertical shaft 12 Arc-shaped track 13 Opening part 19 Support shaft 20 Sphere 21 Spherical surface seat

Claims

In an arcuate door opening and closing device for opening and closing an arcuate door that has an arcuate cross-sectional shape and moves along an arcuate track,
A door closer attached to the frame side of the opening that opens and closes the arcuate door, and moving the arcuate door in the closing direction;
A connecting mechanism for connecting the distal end of the arm of the door closer and the vertical shaft of the arcuate door in a vertical direction, and for connecting relative to the vertical shaft provided on the vertical wall side ,
The coupling mechanism includes a pair of hinges in which one plate is fixed to the vertical wall of the arcuate door with a vertical interval, a guide member having upper and lower ends fixed to the other plate of the pair of hinges, and the door closer An opening / closing device for an arcuate door, characterized in that it comprises a roller pivotally attached to the tip of an arm and guided up and down by the guide member .

In an arcuate door opening and closing device for opening and closing an arcuate door that has an arcuate cross-sectional shape and moves along an arcuate track,
A door closer attached to the frame side of the opening that opens and closes the arcuate door, and moving the arcuate door in the closing direction;
A connecting mechanism for connecting the tip of the arm of the door closer and the vertical shaft of the arcuate door so as to be relatively movable in the vertical direction;
An arcuate door opening and closing device comprising a hinge provided at an intermediate portion of the arm and swinging a tip end side of the arm in a thickness direction of the arcuate door.

The arc-shaped door opening and closing device according to claim 2, wherein the coupling mechanism is:
A guide member that is arranged in parallel with the vertical wall of the arcuate door and has upper and lower ends fixed to the vertical wall;
A roller that is guided by the guide member and moves up and down;
An arcuate door opening and closing device comprising a spherical joint for connecting a support shaft of the roller to a tip of an arm of the door closer .