JP3600205B2

JP3600205B2 - Door stopper and fitting having the door stopper

Info

Publication number: JP3600205B2
Application number: JP2001334014A
Authority: JP
Inventors: 敏也金子; 司瀬川; 光昭庄司
Original assignee: Tostem Corp
Current assignee: Tostem Corp
Priority date: 2001-10-31
Filing date: 2001-10-31
Publication date: 2004-12-15
Anticipated expiration: 2021-10-31
Also published as: JP2003138825A

Description

【０００１】
【発明の属する技術分野】
本発明は、室内ドアなどを所望角度に全開したとき、その全開位置を保持するドアストッパであって、特に、そのようなドアストッパの中でも、断面溝形のアームステーにスライドバーを摺動自在に差し込んで連結した伸縮自在型のドアストッパ、並びに該ドアストッパを備えた建具に関する。
【０００２】
【従来の技術】
従来、この種のドアストッパは、一般に、図１３に示すように、断面溝形の長尺なアームステー１にスライドバー２を摺動自在に差し込んで連結した構成であり、アームステー１の基端部１ａをドア支持枠３の上枠部に取り付ける一方、スライドバー２の一端部２ａをドア４の上端部に取り付け、ドア４の開閉に応じて、全体長さを自在に伸縮させてドア４の開度を調整できるようになっている。また、ドアストッパは、ドア４を全開したときに、適宜の抜け止め機構５によりアームステー１に対してスライドバー２を抜け止めすると共に、ドア４の全開位置を保持する仕組みになっている。なお、図中符号６は、ドア取付金具としての蝶番である。
【０００３】
【発明が解決しようとする課題】
ところで、従来は、ドア４を過度に強い力で不用意に開放すると、ドアストッパが最大に伸長してドアＢの開きをロックしたときに、ドアストッパを介して大きな衝撃が急激に蝶番６へ伝わり、蝶番６が捩れたりして損壊しやすいため、これを防止すべく、ドア取付金具として、比較的肉厚で高強度の金属製蝶番が使用されている。
【０００４】
ところが、従来、そのように肉厚で強い剛性を備えた金属製蝶番を大量に製造するとなると、それだけコストが著しく高くなってしまうという課題があった。
【０００５】
そこで、本発明の目的は、ドアを過度に強い力で開放しても、その衝撃力を緩和して蝶番を保護し、薄肉で材質を問わない安価なドア用蝶番の使用を可能にするドアストッパおよび該ドアストッパを備えた建具を提供することにある。
【０００６】
【課題を解決するための手段】
上記目的を達成すべく、請求項１に記載の発明は、たとえば以下に示す実施の形態のとおり、断面溝形な扁平な樋状で上側を外装カバー板で覆ったアームステー１１に、帯形平板状のスライドバー１２を摺動自在に差し込んで連結し、前記アームステー１１の基端部ａ２をドア支持枠Ａの上枠部で回転自在に軸支する一方、前記スライドバー１２の他端部ｂ２をドアＢの上端部に回転自在に軸支し、該スライドバー１２の一端部ｂ１側で回転自在に保持するローラ２３を、板バネ２５のようなバネ付勢手段で付勢して前記アームステー１１の底面１１ｂに押圧してなり、前記ドアＢを開けると、その開度に応じて前記アームステー１１から前記スライドバー１２が引き出されて伸長し、全開したとき、前記ローラ２３を前記アームステー１１の先端部ａ１にて係脱可能に弾着して前記ドアＢの全開位置を保持する一方、前記ドアＢを閉めると、その開度に応じて前記スライドバー１２を前記アームステー１１内に収めて短縮し、前記ドア支持枠Ａの上枠部と前記ドアＢの上端部間の隙間に配設されるドアストッパ１０であって、前記スライドバー１２を摺動させると、前記バネ付勢手段の押圧力に抗して前記ローラ２３が乗り越える複数の突起１５…を、前記アームステー１１の先端部ａ１寄りに、長さ方向に間隔をあけて設けてなることを特徴とする。
【０００７】
したがって、本発明では、たとえドアＢが不用意に過度に強い外力を受けて開放されても、スライドバー１２は、一端部ｂ１がアームステー１１の先端部ａ１に近づいたとき、そのままドアＢが全開するまで摺動するには、ローラ２３が、バネ付勢手段の強い押圧力に打ち勝ちながら、しかも突起１５…に乗り上がり、これら凸状の障害物を１つ１つ乗り越えなければならず、その間、断続的に強い抵抗を受けてスライドバー１２の摺動速度が段階的に低減される。この結果、ドアＢが受けた強い衝撃力がドアストッパ１０を介して緩衝され、その衝撃力によってドア用蝶番に急激にかかる荷重が弱まり、それが原因で蝶番が捩れたりして損壊することを防止することができる。
【０００８】
請求項２に記載の発明は、たとえば以下に示す実施の形態のとおり、請求項１に記載のドアストッパにおいて、前記複数の突起１５…の高さを、前記アームステー１１の先端部ａ１に近づくに従い漸次高く形成してなることを特徴とする。
【０００９】
請求項３に記載の発明は、たとえば以下に示す実施の形態のとおり、断面溝形な扁平な樋状で上側を外装カバー板で覆ったアームステー１１に、帯形平板状のスライドバー１２を摺動自在に差し込んで連結し、前記アームステー１１の基端部ａ２をドア支持枠Ａの上枠部で回転自在に軸支する一方、前記スライドバー１２の他端部ｂ２をドアＢの上端部に回転自在に軸支し、該スライドバー１２の一端部ｂ１側で回転自在に保持するローラ２３を、板バネ２５のようなバネ付勢手段で付勢して前記アームステー１１の底面１１ｂに押圧してなり、前記ドアＢを開けると、その開度に応じて前記アームステー１１から前記スライドバー１２が引き出されて伸長し、全開したとき、前記ローラ２３を前記アームステー１１の先端部ａ１にて係脱可能に弾着して前記ドアＢの全開位置を保持する一方、前記ドアＢを閉めると、その開度に応じて前記スライドバー１２を前記アームステー１１内に収めて短縮し、前記ドア支持枠Ａの上枠部と前記ドアＢの上端部間の隙間に配設されるドアストッパ１０であって、前記スライドバー１２を摺動させると、前記バネ付勢手段の押圧力に抗して前記ローラ２３が乗り越える突起１５を前記アームステー１１の先端部ａ１寄りに設け、該突起１５を前記スライドバー１２の摺動方向に長い凸状に形成し、その長手凸状の突起１５には、前記アームステー１１の先端部ａ１に近づくに従い漸次高くなる勾配３１を設けると共に、表面に凸凹を形成してなることを特徴とする。
【００１０】
請求項４に記載の発明は、たとえば以下に示す実施の形態のとおり、断面溝形な扁平な樋状で上側を外装カバー板で覆ったアームステー１１に、帯形平板状のスライドバー１２を摺動自在に差し込んで連結し、前記アームステー１１の基端部ａ２をドア支持枠Ａの上枠部で回転自在に軸支する一方、前記スライドバー１２の他端部ｂ２をドアＢの上端部に回転自在に軸支し、該スライドバー１２の一端部ｂ１側で回転自在に保持するローラ２３を、板バネ２５のようなバネ付勢手段で付勢して前記アームステー１１の底面１１ｂに押圧してなり、前記ドアＢを開けると、その開度に応じて前記アームステー１１から前記スライドバー１２が引き出されて伸長し、全開したとき、前記ローラ２３を前記アームステー１１の先端部ａ１にて係脱可能に弾着して前記ドアＢの全開位置を保持する一方、前記ドアＢを閉めると、その開度に応じて前記スライドバー１２を前記アームステー１１内に収めて短縮し、前記ドア支持枠Ａの上枠部と前記ドアＢの上端部間の隙間に配設されるドアストッパ１０であって、前記スライドバー１２を摺動させると、前記バネ付勢手段の押圧力に抗して前記ローラ２３が乗り越える突起１５を設け、該突起１５を、非金属部材で板片状に形成して前記アームステー１１の先端部ａ１寄りに嵌め付け、その板片状突起１５には、前記アームステー１１の先端部ａ１に近づくに従い漸次高くなる勾配３３を設けると共に、表面に凸凹を形成してなることを特徴とする。
【００１１】
請求項５に記載の発明は、たとえば以下に示す実施の形態のとおり、断面溝形な扁平な樋状で上側を外装カバー板で覆ったアームステー１１に、帯形平板状のスライドバー１２を摺動自在に差し込んで連結し、前記アームステー１１の基端部ａ２をドア支持枠Ａの上枠部で回転自在に軸支する一方、前記スライドバー１２の他端部ｂ２をドアＢの上端部に回転自在に軸支し、該スライドバー１２の一端部ｂ１側で回転自在に保持するローラ２３を、ねじりコイルばね４５のようなバネ付勢手段で横向きに付勢して前記アームステー１１に有する折曲側片１１ａの一方に押圧してなり、前記ドアＢを開けると、その開度に応じて前記アームステー１１から前記スライドバー１２が引き出されて伸長し、全開したとき、前記ローラ２３を前記アームステー１１の先端部ａ１にて係脱可能に弾着して前記ドアＢの全開位置を保持する一方、前記ドアＢを閉めると、その開度に応じて前記スライドバー１２を前記アームステー１１内に収めて短縮し、前記ドア支持枠Ａの上枠部と前記ドアＢの上端部間の隙間に配設されるドアストッパ１０であって、前記スライドバー１２を摺動させると、前記バネ付勢手段の押圧力に抗して前記ローラ２３が乗り越える複数の突起１５…を、前記一方の折曲側片１１ａの前記アームステー先端部寄りに間隔をあけて設け、前記複数の突起の高さを、前記アームステー１１の先端部ａ１に近づくに従い漸次高く形成してなることを特徴とする。
【００１２】
請求項６に記載の発明による建具は、たとえば以下に示す実施の形態のとおり、請求項１ないし請求項５のいずれかに記載のドアストッパを備えてなることを特徴とする。
【００１３】
【発明の実施の形態】
以下、図面を参照しつつ、本発明の実施の形態について説明する。
【００１４】
図１は、本発明によるドアストッパ１０の要部の構造を示す分解斜視図、図２は、そのドアストッパの平面図である。ドアストッパ１０は、それぞれステンレス製のアームステー１１とスライドバー１２を備える。アームステー１１は、断面溝形で全体に扁平な桶状に曲げてつくられ、先端部ａ１近くの両折曲側片１１ａに、同じ抜け止め用の突当て段部１３を設けてなる。
【００１５】
さらに、アームステー１１は、先端部ａ１寄りの底面１１ｂ上に、図３（Ａ）でも示すように、長さ方向に間隔をあけて３つの突起１５…を上向きに突設してなる。突起１５…は、図４に示すように、突出高さを先端部ａ１に近づくに従い漸次高くなるように形成するとよい。図示例では、３つの突起１５…を等間隔に設けるが、２つ又は４つ以上設けてもよく、非等間隔に設けてもよい。図示例では、突起１５…を、底面１１ｂの一部を上向きに押し出して一体に形成するが、それぞれ焼入れピン等の別体突起を底面１１ｂに固着して突設することもできる。突起１５…各々の形状を、図示のように丸みを帯びたものに限らず、また、底面１１ｂを幅方向に横断する横長凸状に形成してもよい。
【００１６】
上述した形状のアームステー１１には、基端部ａ２の溝１４内に樹脂製の消音部材１６を嵌め込み、消音部材１６を貫通する取付軸で取付ブラケット１７を基端部ａ２に回転自在に取り付けている。一方、先端部ａ１には、その溝１４内に、スライドバー１２が挿通する樹脂製のガイド材１８を嵌め込んでいる。なお、図示省略したが、上述したアームステー１１は、その上側を外装カバー板で覆った構成になっている。
【００１７】
一方、スライドバー１２は、帯形平板状につくられ、アームステー１１に対し摺動自在に差し込んで連結し、引き出し長さに応じてドアストッパ１０全体を自在に伸縮させて長さ調整できるようになっている。
【００１８】
このスライドバー１２は、先端側の一端部ｂ１に対する他端部ｂ２に、取付ブラケット１９を回転自在に軸支し、一端部ｂ１に樹脂製の抜け止め部材２０を嵌め込んでいる。そして、図２に示すように、スライドバー１２をアームステー１１内に収めて重ね合わせたとき、消音部材１６と抜け止め部材２０の樹脂同志が当接することで、金属音を発生させることなく抜け止めする構造になっている。また、スライドバー１２には、抜け止め部材２０の他端部ｂ２側に隣接して当接片２１を固着している。そして、スライドバー１２をアームステー１１内から引き出したとき、当接片２１が突当て段部１３に当接することにより、スライドバー１２がアームステー１１から抜けるのを阻止する。
【００１９】
さらに、スライドバー１２は、当接片２１の他端部ｂ２寄りに角孔２２を設けてあり、その角孔２２内に、焼入れした小径なローラ２３を回転自在に遊嵌している。一方、ローラ２３と当接片２１間には、一端をリベット２４で図中上面１２ａ上に締着した板バネ２５を配設し、その板バネ２５の他端側をローラ２３に強く押し当ててなる。そして、常時、ローラ２３を、板バネ２５で付勢してアームステー１１の底面１１ｂ上に押圧している。なお、板バネ２５は、ビスで固着したり、スポット溶接により固着してもよい。
【００２０】
さて、上述した構成のドアストッパ１０は、この例では、図５に示すように、ドア支持枠Ａの上枠部にアームステー１１の取付ブラケット１７をねじ止めする一方、ドアＢの上端部にスライドバー１２の取付ブラケット１９をねじ止めしてドア支持枠ＡとドアＢ間に取り付ける。図中符号３０は、ドア取付金具の蝶番である。蝶番３０としては、比較的薄肉で軽量な、たとえば鉄製蝶番やアルミニウム製蝶番などを用いる。過度に高強度のものでなくてもよく、たとえば樹脂製の蝶番を使用することもできる。
【００２１】
以上の構成からなるドアストッパ１０は、ドアＢが開けられると、それに従ってアームステー１１に対しスライドバー１２が摺動して引き出され、ドアＢの開度に応じて伸長する。このとき、ローラ２３は、板バネ２５の押圧力に抗してアームステー１１の底面１１ｂ上を回転しながら移動する。
【００２２】
その後、スライドバー１２の一端部ｂ１がアームステー１１の先端部ａ１に近づいたとき、ローラ２３は、突起１５…先頭に突き当たるが、スライドバー１２が更に引き出されると、板バネ２５の押圧力に抗して各突起１５…を、順次乗り越えてから、最後の突起１５とアームステー１１の先端部ａ１との間で係脱可能に弾着される。それと略同時に、スライドバー１２の当接片２１が突当て段部１３に当接してスライドバー１２の摺動を停止し、スライドバー１２がアームステー１１から抜け出るのを阻止し、この位置にてドアＢが全開となる。
【００２３】
したがって、ドア全開状態のとき、ドアストッパ１０は、たとえ風に煽られたり障害物が軽く当接したりする程度の外力をドアＢが受けても、ドアＢを閉止させずに全開位置で保持する。一方、ドアＢを閉めるときは、ドア回動動作に応じて、スライドバー１２が逆向きに摺動してアームステー１１内に収められ、ドアストッパ１０がドアＢの開度に応じて次第に短縮する。このとき、ローラ２３は、同様に、板バネ２５の押圧力に抗して回転しながら、突起１５…を順次乗り越えてアームステー１１の底面１１ｂ上を、ドアＢが閉止されるまで移動する。
【００２４】
ところで、ドアＢは、不用意に過度に強い外力を受けて開放される場合がある。しかし、本発明では、たとえドアＢが過度に勢いよく開かれても、スライドバー１２は、一端部ｂ１がアームステー１１の先端部ａ１に近づいたとき、そのままドアＢが全開するまで摺動するには、図３（Ｂ）・（Ｃ）・（Ｄ）に順に示すように、ローラ２３が、板バネ２５の強い押圧力に打ち勝ちながら、しかも突起１５…に乗り上がり、これら凸状の障害物を１つ１つ乗り越えなければならず、その間、断続的に強い抵抗を受けてスライドバー１２の摺動速度が段階的に低減される。
【００２５】
この結果、本発明では、ドアＢが受ける強い衝撃力がドアストッパ１０を介して緩衝され、その衝撃力によって蝶番３０にかかる荷重が弱まり、それが原因で蝶番３０が捩れたりして損壊することを防止することができる。
【００２６】
さて、上述した図示例では、突起１５を、アームステー１１の先端部ａ１寄りの底面１１ｂ上に複数並べて突設した。しかし、本発明は、たとえば図６および図７（Ａ）に示すように、前記突起１５を、スライドバー１２の摺動方向に細長い凸状に底面１１ｂ上に突設してもよい。この細長凸状の突起１５には、突出高さがアームステー１１の先端部ａ１に近づくに従い漸次高くなる勾配３１を設けることが好ましい。また、細長凸状の突起１５には、図示しないが、表面に適宜の凹凸を形成するとよい。図示例では、細長凸状の突起１５を、底面１１ｂの一部を上向きに押し出して一体に形成するが、切り起して形成してもよく、さらに、たとえば焼入れした棒体のような細長な別体突起を底面１１ｂに固着して突設することもできる。
【００２７】
この他例では、たとえドアＢが過度に勢いよく開かれても、スライドバー１２は、一端部ｂ１がアームステー１１の先端部ａ１に近づいたとき、そのままドアＢが全開するまで摺動するには、図７（Ａ）・（Ｂ）・（Ｃ）に示すように、ローラ２３が、板バネ２５の強い押圧力に打ち勝ちながら、しかも長手突起１５の勾配３１に乗り上がり、この長い凸状の障害物を乗り越えなければならず、その間、継続的に強い抵抗を受けてスライドバー１２の摺動速度が飛躍的に低減され、その結果、蝶番３０に伝わる負荷が弱められる。
【００２８】
次に、本発明によるドアストッパ１０は、前記突起１５を、樹脂材料などの非金属部材で板片状に形成し、たとえば図８〜図１０に示すように、板片状突起１５をアームステー１１の底面１１ｂに嵌め付ける構成にすることもできる。
【００２９】
この図示例において、板片状突起１５は、略Ｉ形に樹脂成形され、両端部の図中下の裏面にそれぞれ嵌合凸部１５ａ・１５ａを設けてなる。一方、アームステー１１には、先端部ａ１近くに、嵌合凸部１５ａ・１５ａに対応して嵌合孔３２・３２を設けている。そして、嵌合孔３２・３２に嵌合凸部１５ａ・１５ａを嵌め込んで、板片状突起１５をアームステー１１の先端部ａ１近くに嵌め付けてなる。なお、板片状突起１５には、表面側に、アームステー１１の先端部ａ１に近づくに従い漸次高くなる勾配３３を設けることが好ましい。さらに、板片状突起１５には、表面に間隔をあけて凹部１５ｂを設け、表面を凹凸状に形成するとなおよい。
【００３０】
さて、この他例では、たとえドアＢが過度に勢いよく開かれても、スライドバー１２は、一端部ｂ１がアームステー１１の先端部ａ１に近づいたとき、そのままドアＢが全開するまで摺動するには、ローラ２３が、板バネ２５の強い押圧力に打ち勝ちながら、しかも表面に凹凸のある板片状突起１５の勾配３３に乗り上がり、この凸状の障害物を乗り越えなければならず、その間、継続的に強い抵抗を受けてスライドバー１２の摺動速度が飛躍的に低減され、その結果、蝶番３０に伝わる負荷が弱められる。また、板片状突起１５が樹脂製であるため、これをローラ２３が乗り越えるとき、耳障りな金属音など異音の発生を抑えることもできる。
【００３１】
したがって、図示例では、板片状突起１５として樹脂成形品を用いたが、本発明では、消音効果のある非金属部材であれば、ゴム成形品などを使用してもよい。
【００３２】
さて、以上に図示した例では、ローラ２３を下向きにバネ付勢してアームステー１１の底面１１ｂに対し押圧し、このバネ押圧力に抗して突起１５を乗り越させてスライドバー１２を減速した。しかし、本発明は、以下に例示するように、ローラ２３を横向きにバネ付勢してアームステー１１の折曲側片１１ａに対し強圧し、同様にスライドバー１２を減速させる構成にすることもできる
【００３３】
この他例において、スライドバー１２には、図１１に示すように、一端部ｂ１近くの当接片２１に、太径ピン状のバネ掛け軸４０を立設し、更に当接片２１に隣接して底面１２ａ上に太径ピン状の枢軸４１を立設し、その枢軸４１で支持してアーム４２を揺動自在に取り付けている。アーム４２上には、先端にローラ２３を配設し、ローラ２３と枢軸４１間にバネ掛けピン４３を固着している。図示例のローラ２３は、短管状をなし、アーム４２の先端に固着した短軸４４を嵌合して回転自在に保持されている。そして、枢軸４１に、バネ付勢手段としてねじりコイルばね４５を巻装し、ばね一端をバネ掛け軸４０に掛け、ばね他端をバネ掛けピン４３に掛けてアーム４２を一方向に回動付勢し、ローラ２３をアームステー１１に有する折曲側片１１ａの一方に押圧している。
【００３４】
一方、アームステー１１には、一方の折曲側片１１ａにおける先端部ａ１寄りに、長さ方向に間隔をあけて複数の突起１５…を横向きに突設してなる。図示例の各突起１５は、アームステー１１の基端部ａ２側が傾斜した鋸歯状に形成するが、凸状であれば、たとえば半円状などに形成してもよい。また、図示例では、突起１５…を３つ等間隔に突設するが、２つ又は４つ以上設けてもよく、非等間隔に設けてもよい。なお、図示しないが、各突起１５の高さは、アームステー１１の先端部ａ１に近づくに従い漸次高く形成するとよい。
【００３５】
そして、この他例では、たとえドアＢが過度に勢いよく開かれても、スライドバー１２は、一端部ｂ１がアームステー１１の先端部ａ１に近づいたとき、そのままドアＢが全開するまで摺動するには、ローラ２３が、図１２（Ａ）に示すように、ねじりコイルばね４５の強い押圧力に打ち勝ちながら、しかも突起１５…に乗り上がり、これら凸状の障害物を１つ１つ乗り越えなければならず、その間、断続的に強い抵抗を受けてスライドバー１２の摺動速度が段階的に低減され、その結果、蝶番３０に伝わる負荷が弱められる。そして、ローラ２３は、最後の突起１５とガイド材１８との間で弾着保持される。
【００３６】
図１１および図１２に示した上記例では、アームステー１１の折曲側片１１ａに、突起１５を分割して複数突設したが、本発明は、図示省略するが、そのように折曲側片１１ａに設ける突起を、スライドバー１２の摺動方向に長い鍔状に突出させて形成してもよい。この長手凸状の突起には、突出高さがアームステー１１の先端部ａ１に近づくに従い漸次長くなる勾配を設けるとよい。
【００３７】
また、以上に列挙した図示例では、突起１５をアームステー１１の底面１１ｂ又は折曲側片１１ａに設けるが、本発明は、移動するローラ２３をバネ付勢手段により押し当て可能な箇所であれば、それら底面又は折曲側片以外の箇所に設けることを除外するものではない。
【００３８】
ところで、以上には、上記ドアストッパ１０を備えた建具としてドアＢの例を示したが、本発明による建具は、そのようなドアに限らず、その他の可動性の工作物であって、それに同様な構造のドアストッパ１０を備えた構成にすることもできる。
【００３９】
【発明の効果】
上述の如く構成した本発明によれば、次のような効果が得られる。
【００４０】
請求項１に記載の発明によれば、扁平なドアストッパであっても、アームステーの先端部寄りの底面上に、バネ付勢手段の押圧力に抗してローラが乗り越える複数の突起を、長さ方向に間隔をあけて突設した構成であるため、たとえドアが不用意に過度に強い外力を受けて開放されても、スライドバーは、一端部がアームステーの先端部に近づいたとき、そのままドアが全開するまで摺動するには、ローラが、板バネの押圧力に打ち勝ちながら、しかも複数の突起１つ１つに乗り上がり、これら突起を乗り越えなければならず、その間に、障害の数だけ断続的に強い抵抗を受けることによりスライドバーの摺動速度が段階的に低減され、その結果、ドアが受けた強い衝撃力をドアストッパを介して緩衝し、その衝撃力によって蝶番にかかる荷重を弱め、それが原因で従来の如く蝶番が捩れたりして損壊することを防止して蝶番を確実に保護することができる。
【００４１】
これによって、本発明では、蝶番として、従来の如く肉厚で強い剛性を具備したもの使用する必要がなく、比較的薄肉で軽量な金属製蝶番や、樹脂製の蝶番など材質如何を問わず使用することが可能となり、その結果、ドア用蝶番のコストを著しく低減させることができる。
【００４２】
請求項２および５に記載の発明によれば、複数の突起の高さを、アームステーの先端部に近づくに従い漸次高く形成した構成であるため、ドアが全開に近づくに従い、ローラが板バネの強い押圧力に抗して乗り越える突起が高くなる分だけ、より強い抵抗を受けることにより、スライドバーの摺動速度をより効果的に低減させることができる。
【００４３】
請求項３に記載の発明によれば、突起を、スライドバーの摺動方向に長い凸状に形成した構成であるため、ドアが全開に近づくと、ローラは、板バネの強い押圧力に抗して突起に乗り上がる間、その突起の長さだけ継続的に強い抵抗を受け、さらに、その長手凸状の突起に、アームステーの先端部に近づくに従い漸次高くなる勾配を設けているため、ローラが板バネの強い押圧力に抗して乗り越える突起が高くなる分だけ、より強い抵抗を受け、しかも、表面に凹凸が形成されているため、更により強い抵抗を受けることにより、スライドバーの摺動速度をより一層効果的に低減させることができる。
【００４４】
請求項４に記載の発明によれば、突起を、非金属部材で板片状に形成してアームステーの先端部寄りに嵌め付けた構成であるため、スライドバーの摺動速度の低減効果を得ることができるとともに、この板片状突起をローラが乗り越えるときに、耳障りな金属音など異音の発生を極力抑えることができ、さらに板片状突起に、アームステーの先端部に近づくに従い漸次高くなる勾配を設けた構成であるため、ドアが全開に近づくに従い、ローラが板バネの強い押圧力に抗して乗り越える突起が高くなる分だけ、より強い抵抗を受け、しかも、板片状突起の表面に凸凹を形成した構成であるため、表面に凸凹がある分だけ、更により強い抵抗を受けることにより、スライドバーの摺動速度をより効果的に低減させることができる。
【００４５】
請求項６に記載の発明によれば、建具が受けた強い衝撃力をドアストッパを介して緩衝し、その衝撃力によって蝶番にかかる荷重を弱め、それが原因で建具用の蝶番が捩れたりして損壊することを防止して蝶番を確実に保護することができる。
【図面の簡単な説明】
【図１】本発明によるドアストッパの要部の構造を示す分解斜視図である。
【図２】スライドバーをアームステー内に収めて重ね合わせた状態で示すドアストッパの平面図である。
【図３】（Ａ）はドアが全開に近づいたとき、ローラが突起に乗り上がる直前の状態、（Ｂ）は１つ目の突起に乗り上がった状態、（Ｃ）はその突起を乗り越えた状態（Ｄ）は全て突起を乗り越え終えた状態を示す部分縦断面図である。
【図４】複数突起の突出高さの違いを示す部分縦断面図である。
【図５】ドア支持枠とドア間に取り付けた本発明のドアストッパを、ドア全開状態において示す平面図である。
【図６】突起を長手凸状に形成した他例において、スライドバーをアームステー内に収めて重ね合わせた状態で示すドアストッパの平面図である。
【図７】図６の他例において、（Ａ）はドアが全開に近づいたとき、ローラが突起に乗り上がる直前の状態、（Ｂ）は突起を乗り上がる途中の状態、（Ｃ）は突起の最上位置にある状態を示す部分縦断面図である。
【図８】樹脂製の板片状突起を用いた他例において、スライドバーをアームステー内に収めて重ね合わせた状態で示すドアストッパの平面図である。
【図９】樹脂製の板片状突起と、それを嵌め込む嵌合孔を有するスライドバーの先端部側を示す斜視図である。
【図１０】樹脂製の板片状突起を嵌め込んだ部分におけるドアストッパの構造を示す部分縦断面図である。
【図１１】ローラを横向きにバネ付勢してアームステーの折曲側片に対し押圧する他例において、その要部を示す斜視図である。
【図１２】図１１の他例において、（Ａ）はドアが全開に近づいたとき、ローラが１つ目の突起に乗り上がた状態、（Ｂ）はその突起を乗り越えた状態を示す部分平面図である。
【図１３】従来のドアストッパを、ドア支持枠とドア間に取り付けてドア全開状態において示す平面図である。
【符号の説明】
１０ドアストッパ
１１アームステー
１１ａアームステーの折曲側片
１１ｂアームステーの底面
１２スライドバー
１５突起
２３ローラ
２５板バネ（バネ付勢手段）
３０蝶番
３１・３３勾配
４５ねじりコイルばね（バネ付勢手段）
ａ１アームステーの先端部
ａ２アームステーの基端部
ｂ１スライドバーの一端部
ｂ２スライドバーの他端部
Ａドア支持枠
Ｂドア[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a door stopper that holds a fully opened position when an indoor door or the like is fully opened at a desired angle, and in particular, among such door stoppers, a slide bar is slidable on a grooved arm stay. The present invention relates to a telescopic door stopper which is inserted into and connected to a door, and a fitting provided with the door stopper.
[0002]
[Prior art]
Conventionally, this type of door stopper generally has a configuration in which a slide bar 2 is slidably inserted and connected to an elongated arm stay 1 having a groove-shaped cross section as shown in FIG. While the end 1a is attached to the upper frame of the door support frame 3, the one end 2a of the slide bar 2 is attached to the upper end of the door 4, and the entire length is freely expanded and contracted according to the opening and closing of the door 4. 4 can be adjusted. Further, when the door 4 is fully opened, the slide bar 2 is prevented from coming off with respect to the arm stay 1 by an appropriate retaining mechanism 5 when the door 4 is fully opened, and the door 4 is kept in the fully open position. Reference numeral 6 in the drawing is a hinge as a door mounting bracket.
[0003]
[Problems to be solved by the invention]
By the way, conventionally, when the door 4 is carelessly opened with an excessively strong force, when the door stopper is extended to the maximum and the opening of the door B is locked, a large impact is suddenly applied to the hinge 6 through the door stopper. Since the hinge 6 is easily twisted or damaged, a relatively thick and high-strength metal hinge is used as a door fitting to prevent this.
[0004]
However, conventionally, there has been a problem that if a large number of such metal hinges having a large thickness and high rigidity are to be manufactured, the cost will be significantly increased.
[0005]
Therefore, an object of the present invention is to reduce the impact force of the door even if the door is opened with an excessively strong force, protect the hinge, and enable the use of a thin and inexpensive door hinge regardless of the material. A stopper and a fitting provided with the door stopper.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is, for example, a groove-shaped section as in the following embodiments.A flat, gutter-shaped arm stay 11 covered with an exterior cover plate on the upper sideSlide bar 12 is slidably inserted and connected,While the base end a2 of the arm stay 11 is rotatably supported by the upper frame of the door support frame A, the other end b2 of the slide bar 12 is rotatably supported by the upper end of the door B,A roller 23 rotatably held at one end b1 side of the slide bar 12 is urged by a spring urging means such as a leaf spring 25 and pressed against the bottom surface 11b of the arm stay 11.And the door B is opened. Then, the slide bar 12 is pulled out from the arm stay 11 and extended according to the opening degree,When fully opened, the roller 23 is detachably elastically attached to the tip end a1 of the arm stay 11 to hold the door B fully open.On the other hand, when the door B is closed, the slide bar 12 is accommodated in the arm stay 11 and shortened according to the degree of opening, and the gap between the upper frame of the door support frame A and the upper end of the door B is reduced. Is arranged inWhen the slide bar 12 is slid, the plurality of protrusions 15 over which the roller 23 rides against the pressing force of the spring biasing means are moved toward the tip end a1 of the arm stay 11. In addition, it is characterized by being provided at intervals in the length direction.
[0007]
Therefore, in the present invention, even if the door B is inadvertently opened by receiving an excessively strong external force, when the one end b1 approaches the tip a1 of the arm stay 11, the slide bar 12 moves the door B as it is. In order to slide until it is fully opened, the roller 23 must overcome the strong pressing force of the spring urging means and climb on the projections 15 to overcome these convex obstacles one by one. During that time, the sliding speed of the slide bar 12 is reduced stepwise due to intermittently strong resistance. As a result, the strong impact force received by the door B is buffered through the door stopper 10, and the impact force reduces the load suddenly applied to the door hinge, thereby causing the hinge to be twisted and damaged. Can be prevented.
[0008]
According to a second aspect of the present invention, for example, in the following embodiment, in the door stopper according to the first aspect, the height of the plurality of protrusions 15 approaches the distal end portion a1 of the arm stay 11. In accordance with the following formula.
[0009]
The invention according to claim 3 is, for example, a groove-shaped section as in the following embodiment.A flat, gutter-shaped arm stay 11 covered with an exterior cover plate on the upper sideSlide bar 12 is slidably inserted and connected,While the base end a2 of the arm stay 11 is rotatably supported by the upper frame of the door support frame A, the other end b2 of the slide bar 12 is rotatably supported by the upper end of the door B,A roller 23 rotatably held at one end b1 side of the slide bar 12 is urged by a spring urging means such as a leaf spring 25 and pressed against the bottom surface 11b of the arm stay 11.When the door B is opened, the slide bar 12 is pulled out and extended from the arm stay 11 according to the opening degree,When fully opened, the roller 23 is detachably elastically attached to the tip end a1 of the arm stay 11 to hold the door B fully open.On the other hand, when the door B is closed, the slide bar 12 is accommodated in the arm stay 11 and shortened according to the degree of opening, and the gap between the upper frame of the door support frame A and the upper end of the door B is reduced. Is arranged inWhen the slide bar 12 is slid, the protrusion 15 over which the roller 23 rides is provided near the tip end a1 of the arm stay 11 when the slide bar 12 is slid. The protrusion 15 is formed in a convex shape long in the sliding direction of the slide bar 12.The protruding projection 15 has a gradient 31 that gradually increases as it approaches the tip a1 of the arm stay 11, and the surface thereof has irregularities.It is characterized by being formed.
[0010]
Claim4The invention described in (1), for example, according to the following embodiment,A flat, gutter-shaped arm stay 11 covered with an exterior cover plate on the upper sideSlide bar 12 is slidably inserted and connected,While the base end a2 of the arm stay 11 is rotatably supported by the upper frame of the door support frame A, the other end b2 of the slide bar 12 is rotatably supported by the upper end of the door B,A roller 23 rotatably held at one end b1 side of the slide bar 12 is urged by a spring urging means such as a leaf spring 25 and pressed against the bottom surface 11b of the arm stay 11.When the door B is opened, the slide bar 12 is pulled out and extended from the arm stay 11 according to the opening degree,When fully opened, the roller 23 is detachably elastically attached to the tip end a1 of the arm stay 11 to hold the door B fully open.On the other hand, when the door B is closed, the slide bar 12 is accommodated in the arm stay 11 and shortened according to the degree of opening, and the gap between the upper frame of the door support frame A and the upper end of the door B is reduced. Is arranged inWhen the slide bar 12 is slid, the door stopper 10 is provided with a projection 15 over which the roller 23 rides against the pressing force of the spring biasing means. And fitted into the arm stay 11 near the tip end a1.The plate-like projection 15 is provided with a gradient 33 that gradually increases as approaching the tip end a1 of the arm stay 11, and has an uneven surface.It is characterized by becoming.
[0011]
The invention according to claim 5 is, for example, a groove-shaped section as in the following embodiment.A flat, gutter-shaped arm stay 11 covered with an exterior cover plate on the upper sideSlide bar 12 is slidably inserted and connected,While the base end a2 of the arm stay 11 is rotatably supported by the upper frame of the door support frame A, the other end b2 of the slide bar 12 is rotatably supported by the upper end of the door B,One end of the bent side piece 11a provided in the arm stay 11 by urging the roller 23 rotatably held at one end b1 side of the slide bar 12 laterally by a spring urging means such as a torsion coil spring 45. PressWhen the door B is opened, the slide bar 12 is pulled out and extended from the arm stay 11 according to the opening degree,When fully opened, the roller 23 is detachably elastically attached to the tip end a1 of the arm stay 11 to hold the door B fully open.On the other hand, when the door B is closed, the slide bar 12 is accommodated in the arm stay 11 and shortened according to the degree of opening, and the gap between the upper frame of the door support frame A and the upper end of the door B is reduced. Is arranged inWhen the slide bar 12 is slid, the plurality of protrusions 15 over which the roller 23 rides against the pressing force of the spring biasing means is moved to the door stopper 10 so that the plurality of protrusions 15 Provided at an interval near the tip of the arm stayThe height of the plurality of protrusions is gradually increased as approaching the tip a1 of the arm stay 11.It is characterized by becoming.
[0012]
Claim6The fittings according to the invention described in (1), (2), (3), (3), (3), (3), for example, in the following embodiments.5And a door stopper according to any one of the above.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
FIG. 1 is an exploded perspective view showing the structure of a main part of a door stopper 10 according to the present invention, and FIG. 2 is a plan view of the door stopper. The door stopper 10 includes an arm stay 11 and a slide bar 12 made of stainless steel. The arm stay 11 is formed by bending into a generally flat tub-like shape with a groove shape in cross section, and is provided with the same abutting step portion 13 for retaining on both bent side pieces 11a near the front end portion a1.
[0015]
3A, the arm stay 11 has three projections 15 projecting upward at intervals in the length direction on the bottom surface 11b near the distal end portion a1. As shown in FIG. 4, the protrusions 15 are preferably formed so that the height of the protrusions gradually increases as approaching the tip a1. In the illustrated example, three projections 15 are provided at equal intervals, but two or four or more projections 15 may be provided, or may be provided at unequal intervals. In the illustrated example, the projections 15 are formed integrally by extruding a part of the bottom surface 11b upward, but separate projections such as quenching pins may be fixed to the bottom surface 11b and projected. The protrusions 15 are not limited to those having a rounded shape as shown in the figure, and may be formed in a horizontally long convex shape that crosses the bottom surface 11b in the width direction.
[0016]
A resin silencing member 16 is fitted into the groove 14 of the base end portion a2 of the arm stay 11 having the above-described shape, and a mounting bracket 17 is rotatably attached to the base end portion a2 with a mounting shaft passing through the silencing member 16. ing. On the other hand, a resin guide 18 through which the slide bar 12 is inserted is fitted into the groove 14 of the distal end portion a1. Although not shown, the above-described arm stay 11 has a configuration in which the upper side is covered with an exterior cover plate.
[0017]
On the other hand, the slide bar 12 is formed in a band-shaped flat plate shape, is slidably inserted into and connected to the arm stay 11, and is capable of adjusting the length by freely expanding and contracting the entire door stopper 10 according to the length of the drawer. It has become.
[0018]
The slide bar 12 has a mounting bracket 19 rotatably supported at the other end b2 with respect to the one end b1 on the distal end side, and a resin stopper member 20 is fitted into one end b1. As shown in FIG. 2, when the slide bar 12 is housed in the arm stay 11 and overlapped with each other, the silencing member 16 and the resin of the retaining member 20 come into contact with each other, thereby removing the metal bar without generating a metallic sound. It has a structure to stop. A contact piece 21 is fixed to the slide bar 12 adjacent to the other end b2 of the retaining member 20. When the slide bar 12 is pulled out from the inside of the arm stay 11, the abutting piece 21 abuts on the abutting step 13, thereby preventing the slide bar 12 from coming off from the arm stay 11.
[0019]
Further, the slide bar 12 is provided with a square hole 22 near the other end b2 of the contact piece 21, and a small-diameter hardened roller 23 is freely rotatably fitted in the square hole 22. On the other hand, a leaf spring 25 having one end fastened to the upper surface 12a in the figure by a rivet 24 is disposed between the roller 23 and the contact piece 21, and the other end of the leaf spring 25 is strongly pressed against the roller 23. It becomes. Then, the roller 23 is constantly urged by the leaf spring 25 and pressed on the bottom surface 11b of the arm stay 11. The leaf spring 25 may be fixed with screws or fixed by spot welding.
[0020]
Now, in this example, the door stopper 10 having the above-described configuration is configured such that the mounting bracket 17 of the arm stay 11 is screwed to the upper frame portion of the door support frame A, as shown in FIG. The mounting bracket 19 of the slide bar 12 is screwed and mounted between the door support frame A and the door B. Reference numeral 30 in the figure is a hinge of the door mounting bracket. As the hinge 30, a relatively thin and lightweight hinge such as an iron hinge or an aluminum hinge is used. It is not necessary that the strength is excessively high. For example, a hinge made of resin can be used.
[0021]
When the door B is opened, the slide bar 12 slides with respect to the arm stay 11 and is pulled out of the door stopper 10 having the above configuration, and the door stopper 10 is extended in accordance with the opening of the door B. At this time, the roller 23 moves while rotating on the bottom surface 11 b of the arm stay 11 against the pressing force of the leaf spring 25.
[0022]
Thereafter, when the one end b1 of the slide bar 12 approaches the tip a1 of the arm stay 11, the roller 23 abuts on the protrusion 15..., But when the slide bar 12 is further pulled out, the pressing force of the leaf spring 25 is reduced. After each of the protrusions 15... Sequentially passes over the protrusions 15. At about the same time, the abutment piece 21 of the slide bar 12 abuts against the abutting step 13 to stop the slide bar 12 from sliding, and prevents the slide bar 12 from coming out of the arm stay 11. Door B is fully opened.
[0023]
Accordingly, when the door is fully opened, the door stopper 10 holds the door B at the fully opened position without closing the door B even if the door B receives an external force such as being blown by the wind or lightly touching an obstacle. . On the other hand, when closing the door B, the slide bar 12 slides in the opposite direction and is housed in the arm stay 11 according to the door turning operation, and the door stopper 10 is gradually shortened according to the opening degree of the door B. I do. At this time, similarly, the roller 23 moves over the protrusions 15... Sequentially over the projections 15 while rotating against the pressing force of the leaf spring 25, and moves on the bottom surface 11 b of the arm stay 11 until the door B is closed.
[0024]
Incidentally, the door B may be inadvertently opened by receiving an excessively strong external force. However, in the present invention, even if the door B is opened excessively vigorously, the slide bar 12 slides until the door B is fully opened when the one end b1 approaches the tip a1 of the arm stay 11. As shown in FIG. 3B, FIG. 3C, and FIG. 3D, the roller 23 overcomes the strong pressing force of the leaf spring 25 and rides on the projections 15. It is necessary to get over the objects one by one, and during that time, the sliding speed of the slide bar 12 is gradually reduced due to intermittently strong resistance.
[0025]
As a result, in the present invention, the strong impact force received by the door B is buffered through the door stopper 10, and the load applied to the hinge 30 is weakened by the impact force, so that the hinge 30 is twisted and damaged. Can be prevented.
[0026]
In the illustrated example described above, a plurality of the protrusions 15 are arranged and protruded on the bottom surface 11b near the distal end portion a1 of the arm stay 11. However, in the present invention, for example, as shown in FIGS. 6 and 7A, the projection 15 may be provided on the bottom surface 11b in a convex shape elongated in the sliding direction of the slide bar 12. It is preferable that the elongated convex protrusion 15 be provided with a gradient 31 whose protrusion height gradually increases as approaching the distal end portion a1 of the arm stay 11. Although not shown, it is preferable to form appropriate unevenness on the surface of the elongated convex projection 15. In the illustrated example, the elongated convex projection 15 is formed integrally by extruding a part of the bottom surface 11b upward, but may be formed by cutting and raising, and further, for example, an elongated elongated member such as a quenched rod. A separate projection may be fixed to the bottom surface 11b and protruded.
[0027]
In this other example, even if the door B is opened excessively vigorously, the slide bar 12 slides until the door B is fully opened when the one end b1 approaches the tip a1 of the arm stay 11. As shown in FIGS. 7A, 7B, and 7C, while the roller 23 overcomes the strong pressing force of the leaf spring 25 and rides on the slope 31 of the longitudinal projection 15, the roller 23 In the meantime, the sliding speed of the slide bar 12 is drastically reduced due to continuous strong resistance, and as a result, the load transmitted to the hinge 30 is reduced.
[0028]
Next, in the door stopper 10 according to the present invention, the protrusion 15 is formed in a plate shape from a non-metallic member such as a resin material, and as shown in FIGS. 11 may be configured to be fitted to the bottom surface 11b.
[0029]
In the illustrated example, the plate-like projections 15 are resin-molded into a substantially I-shape, and are provided with fitting projections 15a, 15a on the lower surfaces of both ends at the bottom in the figure. On the other hand, the arm stay 11 is provided with fitting holes 32 near the tip a1 corresponding to the fitting protrusions 15a. The fitting projections 15a are fitted into the fitting holes 32, and the plate-like projection 15 is fitted near the tip end a1 of the arm stay 11. In addition, it is preferable to provide the plate-like projection 15 with a gradient 33 gradually increasing toward the front end portion a1 of the arm stay 11 on the front surface side. Further, the plate-like projections 15 are more preferably provided with concave portions 15b at intervals on the surface so that the surface is formed in an uneven shape.
[0030]
In this other example, even if the door B is opened excessively vigorously, the slide bar 12 slides until the door B is fully opened when the one end b1 approaches the tip a1 of the arm stay 11. In order to overcome this, the roller 23 has to overcome the strong pressing force of the leaf spring 25 and ride on the gradient 33 of the plate-like projection 15 having an uneven surface to overcome the convex obstacle. During this time, the sliding speed of the slide bar 12 is drastically reduced due to continuous strong resistance, and as a result, the load transmitted to the hinge 30 is reduced. Further, since the plate-like projections 15 are made of resin, when the rollers 23 get over the projections, it is possible to suppress generation of unusual noises such as harsh metal sounds.
[0031]
Therefore, in the illustrated example, a resin molded product is used as the plate-like projection 15, but in the present invention, a rubber molded product or the like may be used as long as it is a non-metallic member having a sound deadening effect.
[0032]
In the example illustrated above, the roller 23 is spring-biased downward and pressed against the bottom surface 11b of the arm stay 11, and the projection 15 is moved over the projection 15 against the spring pressing force to decelerate the slide bar 12. did. However, in the present invention, as exemplified below, the roller 23 may be biased laterally to apply a strong pressure to the bent side piece 11a of the arm stay 11, and the slide bar 12 may be similarly decelerated. it can
[0033]
In this other example, as shown in FIG. 11, a large diameter pin-shaped spring hook shaft 40 is erected on the abutment piece 21 near one end b1 of the slide bar 12, and further adjacent to the abutment piece 21. A pivot 41 in the form of a large-diameter pin is erected on the bottom surface 12a, and an arm 42 is swingably mounted by being supported by the pivot 41. On the arm 42, a roller 23 is provided at the tip, and a spring hook pin 43 is fixed between the roller 23 and the pivot 41. The illustrated roller 23 has a short tubular shape, and is fitted with a short shaft 44 fixed to the tip of an arm 42 and is rotatably held. A torsion coil spring 45 is wound around the pivot 41 as a spring urging means. One end of the spring is hooked on the spring hook shaft 40, and the other end of the spring is hooked on the spring hook pin 43 to bias the arm 42 in one direction. Then, the roller 23 is pressed against one of the bent side pieces 11 a of the arm stay 11.
[0034]
On the other hand, the arm stay 11 has a plurality of projections 15 projecting laterally at intervals in the length direction near the tip end a1 of the one bent side piece 11a. Each of the projections 15 in the illustrated example is formed in a saw-tooth shape in which the base end portion a2 side of the arm stay 11 is inclined, but may be formed in, for example, a semicircular shape if it is convex. In the illustrated example, three protrusions 15 are provided at equal intervals, but two or four or more protrusions 15 may be provided, or may be provided at unequal intervals. Although not shown, the height of each projection 15 may be gradually increased as approaching the tip a1 of the arm stay 11.
[0035]
In this other example, even if the door B is excessively opened, the slide bar 12 slides until the door B is fully opened when the one end b1 approaches the distal end a1 of the arm stay 11. 12A, the roller 23 rides over the projections 15 while overcoming the strong pressing force of the torsion coil spring 45, as shown in FIG. In the meantime, the sliding speed of the slide bar 12 is gradually reduced due to intermittently strong resistance, and as a result, the load transmitted to the hinge 30 is reduced. The roller 23 is elastically held between the last projection 15 and the guide member 18.
[0036]
In the above example shown in FIGS. 11 and 12, a plurality of protrusions 15 are provided on the bent side piece 11a of the arm stay 11, and the present invention is not shown. The protrusion provided on the piece 11a may be formed to protrude in a long flange shape in the sliding direction of the slide bar 12. It is preferable to provide a gradient in which the protrusion height gradually increases as the protrusion height approaches the distal end portion a1 of the arm stay 11.
[0037]
Further, in the illustrated examples listed above, the projections 15 are provided on the bottom surface 11b or the bent side piece 11a of the arm stay 11, but the present invention is applicable to any location where the moving roller 23 can be pressed by the spring biasing means. However, this does not preclude the provision of a component other than the bottom surface or the bent side pieces.
[0038]
By the way, in the above, the example of the door B was shown as a fitting provided with the door stopper 10, but the fitting according to the present invention is not limited to such a door, but may be other movable workpieces. A configuration including a door stopper 10 having a similar structure may be adopted.
[0039]
【The invention's effect】
According to the present invention configured as described above, the following effects can be obtained.
[0040]
ClaimIn oneAccording to the described invention,Even with a flat door stopper,Near the tip of the arm stayOn the bottom ofIn addition, since the plurality of projections over which the roller rides against the pressing force of the spring urging means are provided with projections at intervals in the length direction, even if the door is inadvertently subjected to excessively strong external force, Even when the slide bar is released, the slide bar can slide until the door is fully opened when one end approaches the tip of the arm stay, so that the roller overcomes the pressing force of the leaf spring and has multiple protrusions. One must step over each one and overcome these protrusions, during which time the sliding speed of the slide bar is reduced step by step by the intermittently strong resistance by the number of obstacles, and consequently the door Buffer the strong impact force received through the door stopper, weaken the load on the hinge by the impact force, and prevent the hinge from being twisted and damaged as in the past, thereby ensuring the hinge Protect Door can be.
[0041]
As a result, in the present invention, it is not necessary to use a hinge having a large thickness and strong rigidity as in the related art, and a relatively thin and lightweight metal hinge or a resin hinge may be used regardless of the material. As a result, the cost of the door hinge can be significantly reduced.
[0042]
According to the invention described in claims 2 and 5,, MultipleSince the height of the number of protrusions is gradually increased as approaching the tip of the arm stay, as the door approaches full opening, the amount of protrusion over which the roller rides against the strong pressing force of the leaf spring increases. However, by receiving stronger resistance, the sliding speed of the slide bar can be reduced more effectively.
[0043]
According to the third aspect of the present invention,,Since the opening is formed in a convex shape that is long in the sliding direction of the slide bar, when the door approaches the fully open position, the roller is pressed against the projection while resisting the strong pressing force of the leaf spring. We receive strong resistance continuously for lengthFurthermore, since the longitudinally convex projections are provided with a gradient that gradually increases as approaching the tip of the arm stay, the amount by which the projections over which the rollers ride over against the strong pressing force of the leaf springs becomes higher. It receives strong resistance, and the unevenness is formed on its surface.It can be reduced effectively.
[0044]
According to the invention described in claim 4,Since the projection is formed in a plate-like shape with a non-metallic member and fitted near the tip of the arm stay, the effect of reducing the sliding speed of the slide bar can be obtained, and the plate-like projection can be obtained. When the roller gets over, the generation of unusual noise such as harsh metal noise can be suppressed as much as possible, and furthermore, the plate piece-shaped projection is provided with a gradient that gradually increases as it approaches the tip of the arm stay, As the door approaches full opening, the roller gets over the resistance against the strong pressing force of the leaf spring, the higher the protrusion that gets over it, the stronger the resistance, and the unevenness is formed on the surface of the plate-like protrusion. , Because there are irregularities on the surface, furtherBy receiving stronger resistance, the sliding speed of the slide bar can be reduced more effectively.
[0045]
Claim6According to the invention described in (1), the strong impact force received by the fitting is buffered via the door stopper, the load on the hinge is reduced by the impact force, and the hinge for the fitting is twisted or damaged due to it. That is, the hinge can be reliably protected.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a structure of a main part of a door stopper according to the present invention.
FIG. 2 is a plan view of a door stopper in a state in which a slide bar is accommodated in an arm stay and overlapped.
3A is a state immediately before the roller rides on a projection when the door is almost fully opened, FIG. 3B is a state where the roller has climbed on the first projection, and FIG. 3C is over the projection. The state (D) is a partial longitudinal sectional view showing a state in which all of the projections have been passed over.
FIG. 4 is a partial longitudinal sectional view showing a difference in the projection height of a plurality of projections.
FIG. 5 is a plan view showing the door stopper of the present invention attached between the door support frame and the door when the door is fully opened.
FIG. 6 is a plan view of a door stopper in a state in which a slide bar is accommodated in an arm stay and overlapped in another example in which a protrusion is formed in a long convex shape.
FIGS. 7A and 7B show another example of FIG. 6, wherein FIG. 7A shows a state immediately before the roller rides on the protrusion when the door is almost fully opened, FIG. 3 is a partial longitudinal sectional view showing a state at the uppermost position of FIG.
FIG. 8 is a plan view of a door stopper in a state in which a slide bar is accommodated in an arm stay and overlapped in another example using a resin plate-like projection.
FIG. 9 is a perspective view showing a distal end side of a slide bar having a resin plate-like protrusion and a fitting hole into which the protrusion is fitted.
FIG. 10 is a partial longitudinal sectional view showing a structure of a door stopper in a portion where a plate-like projection made of resin is fitted.
FIG. 11 is a perspective view showing a main part of another example in which a roller is spring-biased laterally and pressed against a bent side piece of an arm stay.
12A is a diagram showing a state in which the roller is mounted on the first protrusion when the door is almost fully opened, and FIG. It is a top view.
FIG. 13 is a plan view showing a conventional door stopper mounted between a door support frame and a door in a fully opened state of the door.
[Explanation of symbols]
10 Door stopper
11 Arm stay
11a Folding side piece of arm stay
11b Bottom of arm stay
12 Slide bar
15 protrusion
23 rollers
25 leaf spring (spring biasing means)
30 Hinge
31 ・ 33 Gradient
45 torsion coil spring (spring biasing means)
a1 The tip of the arm stay
a2 Base end of arm stay
b1 One end of slide bar
b2 The other end of the slide bar
A Door support frame
Door B

Claims

A belt-shaped flat slide bar is slidably inserted into and connected to an arm stay whose upper side is covered with an outer cover plate in a flat gutter shape having a groove-shaped cross section, and the base end of the arm stay is connected to a door support frame. A roller that rotatably supports the upper frame portion, rotatably supports the other end of the slide bar to the upper end of the door, and rotatably holds the slide bar at one end side of the slide bar is provided with a spring. When the door is opened, the slide bar is pulled out from the arm stay in accordance with the degree of opening, and the slide bar is extended when the door is opened. At the tip of the arm stay, it is detachably elastically attached to hold the door at the fully open position, and when the door is closed, the slide bar is housed in the arm stay according to the degree of opening. Shorten and over the door support frame Wherein the parts a door stopper which is disposed in a gap between the upper end of the door,
When the slide bar is slid, a plurality of protrusions over which the roller rides against the pressing force of the spring urging means are spaced apart in the length direction on the bottom surface near the tip of the arm stay. A door stopper characterized by being provided.

2. The door stopper according to claim 1, wherein the height of the plurality of protrusions is gradually increased as approaching the tip of the arm stay. 3.

A belt-shaped flat slide bar is slidably inserted into and connected to an arm stay whose upper side is covered with an outer cover plate in a flat gutter shape having a groove-shaped cross section, and the base end of the arm stay is connected to a door support frame. A roller that rotatably supports the upper frame portion, rotatably supports the other end of the slide bar to the upper end of the door, and rotatably holds the slide bar at one end side of the slide bar is provided with a spring. When the door is opened, the slide bar is pulled out from the arm stay in accordance with the degree of opening, and the slide bar is extended when the door is opened. At the tip of the arm stay, it is detachably elastically attached to hold the door at the fully open position, and when the door is closed, the slide bar is housed in the arm stay according to the degree of opening. Shorten and over the door support frame Wherein the parts a door stopper which is disposed in a gap between the upper end of the door,
When the slide bar is slid, a protrusion over which the roller rides over the pressing force of the spring urging means is provided on the bottom surface near the tip of the arm stay, and the protrusion is provided in the sliding direction of the slide bar. A door stopper characterized in that it is formed in a long convex shape, and the longitudinal convex shape is provided with a gradient that gradually increases as approaching the tip of the arm stay, and the surface is formed with irregularities. .

A belt-shaped flat slide bar is slidably inserted into and connected to an arm stay whose upper side is covered with an outer cover plate in a flat gutter shape having a groove-shaped cross section, and the base end of the arm stay is connected to a door support frame. A roller that rotatably supports the upper frame portion, rotatably supports the other end of the slide bar to the upper end of the door, and rotatably holds the slide bar at one end side of the slide bar is provided with a spring. When the door is opened, the slide bar is pulled out from the arm stay in accordance with the degree of opening, and the slide bar is extended when the door is opened. At the tip of the arm stay, it is detachably elastically attached to hold the door at the fully open position, and when the door is closed, the slide bar is housed in the arm stay according to the degree of opening. Shorten and over the door support frame Wherein the parts a door stopper which is disposed in a gap between the upper end of the door,
When the slide bar is slid, a protrusion over which the roller rides is provided against the pressing force of the spring biasing means, and the protrusion is formed in a plate-like shape with a non-metallic member to form a distal end of the arm stay. A door stopper, which is fitted to a lower bottom surface , and whose plate-like projections are provided with a gradient that gradually increases as approaching the distal end of the arm stay, and are formed with irregularities on the surface .

A belt-shaped flat slide bar is slidably inserted into and connected to an arm stay whose upper side is covered with an outer cover plate in a flat gutter shape having a groove-shaped cross section, and the base end of the arm stay is connected to a door support frame. A roller that rotatably supports the upper frame portion, rotatably supports the other end of the slide bar to the upper end of the door, and rotatably holds the slide bar at one end side of the slide bar is provided with a spring. When the door is opened, the slide bar is pulled out from the arm stay in accordance with the degree of opening, and the slide bar is extended. and, when fully opened, while retaining the full open position of said door said roller and Tamagi possible detachment at the tip portion of the arm stays, closing the door, the slide bar in accordance with the opening In the arm stay And, a door stopper which is disposed in a gap between the upper end of the upper frame portion doors of the door support frame,
When the slide bar is slid, a plurality of protrusions over which the roller rides against the pressing force of the spring urging means are provided at intervals on the one bent side piece near the tip of the arm stay. The height of the plurality of protrusions is gradually increased as approaching the tip of the arm stay .

A fitting comprising a door stopper according to any one of claims 1 to 5 .