JP3621912B2

JP3621912B2 - Hinged door opening and closing device

Info

Publication number: JP3621912B2
Application number: JP2001331980A
Authority: JP
Inventors: 照次瀬間
Original assignee: 株式会社稲葉製作所
Priority date: 2001-10-30
Filing date: 2001-10-30
Publication date: 2005-02-23
Anticipated expiration: 2021-10-30
Also published as: JP2003129741A

Description

【０００１】
【発明の属する技術分野】
本発明は、開き戸形式の開閉ドアにばね式ドアクローザを装着した開き戸の開閉装置に係り、開き戸形式による各種の開閉ドアに適用することが可能ではあるが、特に屋外に設置する金属製の組立物置などの開き戸などに適用すると効果を発揮する開き戸の開閉装置に関する。
【０００２】
【従来の技術】
この種の開き戸の開閉装置には、建物本体側と開き戸の間にコイルばねなどの緩衝ばね部材を用いたばね式のドアクローザを装着し、内蔵された緩衝ばね部材の付勢力を利用して、閉鎖時には開き戸を緩やかに引き戻して緩衝を行うと共に、解放時には開き戸の解放限度位置を規制するようにしたものがある。
【０００３】
そのためのばね式ドアクローザとしては、例えば実公平６−１７９７４号公報や特許第３０２３６４９号公報に開示されたものなどがあり、これらのドアクローザでは揺動回転させるアームの枢軸外周に多重にした円筒コイルばねを巻装させ、ケーシング内に収容した状態で使用されている。
【０００４】
また、屋外に設置する金属製の組立物置の開き戸では、コスト上の制約もあってドアクローザは余り使用されておらず、単に解放時における開き戸の開閉限度位置を規制するストッパー手段として、安価なステーなどが用いられている程度であった。
【０００５】
【発明が解決しようとする課題】
しかしながら、これら従来技術によるドアクローザを使用した場合には、緩衝作用が有ることが逆に災いして、開き戸の開閉操作を迅速且つ容易に行うことができなくなることもあり、一方ステーを用いた組立物置などの開き戸の場合は、強風の際にドアが風に煽られて自由に揺動回転するので、人体に危険を及ぼす恐れもあった。
【０００６】
また、ドアクローザに使用される緩衝ばね部材は、製作時や補修時におけるコイルばねの組付け及び取り外し作業が容易ではないこと、コイルばねの交換のみによって、開き戸の大小や軽重などに適合させたばね力を得ることが困難であること、などの解決を必要とする課題があった。
【０００７】
すなわち、コイルばねがケーシング内で枢軸に巻装されているので、組付け時には枢軸に巻装してケーシング内に収容し、取り外し時にはケーシングを分解して枢軸から取り出す必要があること、仮にコイルばねが付勢した状態で収容されている場合には、危険を伴う恐れもある。
【０００８】
また、ばね力を調整するために巻数や巻径或いは線径の異なるコイルばねに交換する場合に、これに適合させて枢軸やケーシングも交換する必要があるので、コイルばねの交換のみでは済まず、このためにコイルばね以外の部品を共用化することが困難であり、メーカーにおけるコストの低減や在庫管理の上で望ましくない。
【０００９】
そこで本発明では、これら従来技術の課題を解決し得る開き戸の開閉装置を提供するものであって、特に構造が簡単で且つ安価なドアクローザーを用いて、開閉操作を迅速且つ容易に行うことができるようにし、屋外に設置する金属製の組立物置などの開き戸にも適用を可能にした。
【００１０】
また、開き戸の大小や軽重などに適合させたばね力が緩衝ばね部材の交換のみで得られること、緩衝ばね部材としてコイルばね以外のばねの使用も可能であること、緩衝ばね部材以外の各部を共用化することが可能なこと、なども可能な開き戸の開閉装置である。
【００１１】
【課題を解決するための手段】
本発明は、建物本体側に対して一方側はヒンジ機構で回動可能に連結させ、他方側は把手に連動したドアキャッチで着脱可能に連結して開き戸を設けると共に、建物本体側と開き戸の間にドアクローザを装着させた開き戸の開閉装置を実施対象としている。
【００１２】
このドアクローザは、建物本体側に取付けたベースプレートに第１揺動アームを、開き戸側に第２揺動アームをそれぞれ枢着し、各揺動アームの他端側を枢着状態で連結させたリンク機構と、取付部の一方をベースプレート側に固定支持し、取付部の他方を第１揺動アーム側に可動支持した緩衝ばね部材と、開き戸の解放限度位置で第１揺動アームを着脱可能に係止保持するドアストッパーとを備えている。
【００１３】
このドアクローザは、開き戸の開閉に連動して第２揺動アームが第１揺動アームを揺動回転させ、中間点を死点にして前方では閉鎖方向へ後方では解放方向へ開き戸をばね付勢させる位置に、緩衝ばね部材の可動支持部を変位させるように構成されている。
【００１４】
この開き戸の開閉装置では、死点である中間点を境にして緩衝ばね部材による開き戸の付勢方向が切り替わり、開き戸の解放操作及び閉鎖操作を小さな操作力で迅速且つ容易に行うことが可能であり、全開時には解放限度位置に設けたドアストッパーに係止保持されると共に、全閉時には閉鎖限度位置に設けたドアキャッチに係止保持される。
【００１５】
また、開き戸には閉鎖限度位置に全閉させる際にも緩衝ばね部材のばね力が閉鎖方向に作用しているが、建物内部側からの空気抵抗を受けることによって緩衝作用もあるので、比較的緩やかに閉鎖されて衝撃音を発生したり戸当たり部分を損傷させる恐れもない。
【００１６】
また、開き戸を解放限度位置に全開させる際には緩衝ばね部材が解放を助勢する方向に作用して速やかにドアストッパーに係止保持できると共に、仮に開き戸を半開き状態にした場合に風などに煽られても、緩衝ばね部材の付勢力によって開き戸が急激に閉じることは無く、人体が危険に晒される恐れがない。
【００１７】
前記開き戸の開閉装置における前記緩衝ばね部材は、両端に設けた取付部がベースプレート側及び、リンク機構の一端側揺動アームに対して着脱可能である形態を採ることができると共に、全体を略Ω（オメガ）形状にした巻数の少ないねじりばねを使用する形態を採ることができる。
【００１８】
これにより、製造時や補修時における緩衝ばね部材の取付け及び取り外しを容易に行うことができると共に、開き戸のサイズや軽重に応じてばね力の異なる緩衝ばね部材に交換し、緩衝ばね部材以外を共用化することが可能であり、コストの低減や在庫管理の簡素化を図ることができる。
【００１９】
また、緩衝ばね部材は従来技術のように枢軸の外周に巻装してケーシングに収容する必要がなく、安価でスペースを取らないなねじりばねを使用して安価なドアクローザーを提供することができると共に、製造時や補修時における緩衝ばね部材の取付け及び取り外しを含むメンテナンスも容易に行うことができる。
【００２０】
前記ベースプレート側には、開き戸の閉鎖限度位置で第１揺動アームを係止保持する着脱可能なアームストッパーを設け、このアームストッパーを取り外すと第１揺動アームが閉鎖限度位置を超えて揺動回転し、緩衝ばね部材をばね作用しない定常状態にさせる形態を採ることができる。
【００２１】
これにより、製造時や補修時における緩衝ばね部材の取付け及び取り外しを容易に行うことができると共に、緩衝ばね部材が飛び散ったりすることもないので安全である。
【００２２】
前記開き戸の開閉装置における前記ドアストッパーは、基部側をべースプレートに固着して先端側をべースプレートの表面から離間させると共に、自由端部側を上向き傾斜状にして接触面を波形状に湾曲させた係止保持板と、べースプレートの表面に設けた円弧状の突起部で構成する形態を採ることができる。
【００２３】
これにより、一端側揺動アームの係止部を係止保持板と突起部の間へ容易に着脱することができると共に、係止部の両面を係止保持板と突起部が点接触状態で強固に保持することができる。
【００２４】
【発明の実施の形態】
以下、本発明による開き戸の開閉装置について、組立物置に適用した好適な実施形態を示す添付図面に基づき詳細に説明するが、図１は本発明を組立物置に適用した使用状態における斜視図、図２は全開状態の平面図、図３は全閉状態の平面図、図４は全閉状態の拡大側面図、図５はドアストッパーの拡大正面図、図６は緩衝ばね部材の他の実施形態図、図７は開き戸の開閉状態の説明図、図８は開閉時におけるばね力及び開き戸の開閉力を示す概略特性図である。
【００２５】
開き戸の開閉装置１は、図１で示すように組立物置本体２と開き戸３の間を、ヒンジ機構４で開閉可能に連結させると共に、物置本体２側に装着したドアクローザ５をリンク機構１７によって開き戸３側に連結し、開き戸３のヒンジ機構４とは反対側の位置には、図示を省略した把手及び、把手の操作に連動して物置本体２側との間で施錠又は開錠を行うドアキャッチが装着されている。
【００２６】
ヒンジ機構４は、公知の各種形態を採ることが可能であるが、この実施形態では、本件出願人が先に提案して特開２０００−１６１３２０号公報に開示された連結具に準拠したヒンジ機構４を用い、組立物置本体２の上部横枠材６及び下部横枠材７に装着したヒンジ受け具４Ａと、開き戸３の上部枠材８及び下部枠材９に装着したヒンジ具４Ｂで構成している。
【００２７】
ヒンジ機構４は、特開２０００−１６１３２０号公報を参照することで詳細の説明は省略するが、雌形連結具であるヒンジ受け具４Ａを組立物置本体２側に装着して、上部横枠材６及び下部横枠材７の前方には方形状の挿入用開口部１０を設け、ヒンジ受け具４Ａに嵌合係止する雄形連結具であるヒンジ具４Ｂには、上部枠材８及び下部枠材９に固着してヒンジ具４Ｂと枢着した定着板１１で構成されている。
【００２８】
ドアクローザ５は、組立物置本体２の鴨居などの上部横枠材６及び敷居などの下部横枠材７に固着すると共に、緩衝ばね部材１２やドアストッパー１３などの構成部材を装着したべースプレート１４と、開き戸３の補強縦桟１５に装着した取付け金具１６との間を、第１及び第２の揺動アーム１７Ａ，１７Ｂで構成されたリンク機構１７で連結し、緩衝ばね部材１２などの主要部には保護カバー１８が被着されている。
【００２９】
リンク機構１７は、べースプレート１４に第１揺動アーム１７Ａの一端側を回動自在に枢着して第１揺動支点Ｘ１を形成し、第１揺動アーム１７Ａの他端側と第２揺動アーム１７Ｂの一端側を回動自在に枢着して第２揺動支点Ｘ２を形成し、第２揺動アーム１７Ｂの他端側と取付け金具１６を回動自在に枢着して第３揺動支点Ｘ３を形成している。
【００３０】
リンク機構１７は、開き戸３の開閉操作に連動して第２揺動アーム１７Ｂが第２及び第３揺動支点Ｘ２，Ｘ３によって角度を変えながら、解放時には第１揺動アーム１７Ａを牽引操作すると共に、閉鎖時には第１揺動アーム１７Ａを押圧操作して、第１揺動アーム１７Ａを予め設定された所定角度の範囲で、第１揺動支点Ｘ１を中心に揺動回転させる。
【００３１】
緩衝ばね部材１２は、両端に設けた取付部の一方を固定部材であるベースプレート１４側に、着脱可能な固着手段で固着して固定支持部Ｓ１とし、取付部の他方を可動部材であるリンク機構１７の第１揺動アーム１７Ａ側に、着脱可能な固着手段で固着して可動支持部Ｓ２とし、第１揺動アーム１７Ａの揺動回転によって可動支持部Ｓ２が変位し、固定支持部Ｓ１との取付けピッチが拡縮する。
【００３２】
緩衝ばね部材１２は、第１揺動アーム１７Ａが揺動回転する中間点で、取付けピッチを最小にしてばね力が最大になるように設定されていると共に、固定支持部Ｓ１と可動支持部Ｓ２及び第１揺動アーム１７Ａの延在する方向が直線上になって、リンク機構１７にばね力が作用しない死点を形成し、この中間点を境に開き戸３に作用するばねの付勢方向が切り替わってばね力は次第に減少する。
【００３３】
図示の実施形態では、緩衝ばね部材１２としてねじりコイルばねを使用しており、例えば線径が５ｍｍ程度の鋼線を、巻径３５ｍｍ程度の環状に１．５回程度巻き、両端の取付部はカール状に湾曲させて全体を略Ω（オメガ）形状にし、取付部の一方はべースプレート１４に立設した支柱１９上に、取付部の他方は第１揺動アーム１７Ａの第１揺動支点Ｘ１より先端側に、それぞれねじ止めされて着脱可能に取り付けられている。
【００３４】
但し、緩衝ばね部材１２はねじりコイルばねに限定されるものではなく、図６で例示する実施形態の緩衝ばね部材１２ａのように、板状ばねを略Ω形状にしてねじりばね作用をさせることもでき、これら以外にも同様の機能を奏する各種緩衝ばね部材を用いることが可能であり、所望に応じて適宜の形態を採用する。
【００３５】
また緩衝ばね部材１２は、両端の取付けピッチのみを共通にしておき、線径や巻径或いは巻数などを変えてばね力の異なるものを予め複数種類用意し、開き戸の大小や軽重に応じて必要なばね力が得られる所望の緩衝ばね部材に適時交換して使用することが可能であり、これによってコストの低減を図ったり、在庫管理を容易にすることができる。
【００３６】
ドアストッパー１３は、図５で詳細を示すように、基部側がべースプレート１４に穿設された差込孔２０を介して裏面側に配置され、先端側はべースプレート１４の表面側より離間した状態で配置された略Ｚ状の係止保持板２１を備え、この係止保持板２１の基部側はボルトとナットによるねじ固着手段２２でべースプレート１４に固着している。
【００３７】
またドアストッパー１３は、第１揺動アーム１７Ａの先端に形成した係止部２４が着脱し易いように、係止保持板２１は自由端部側を上向き傾斜状に折り曲げ形成すると共に、係止部２４の上面を点接触状態で強固に押圧できるように、係止部２４との接触面を波形状に湾曲させている。
【００３８】
更にドアストッパー１３は、係止部２４の着脱を容易にし且つ係止保持を強固にするために、係止保持板２１の位置で係止部２４と接触するべースプレート１４の表面側に円弧状の突起部２３を設け、この突起部２３と係止保持板２１との間で係止部２４を狭持するようにしている。
【００３９】
べースプレート１４には、手前側に形成されたコ字状の取付部１４ａに設けた取付け孔を介して、ボルトとナットによるねじ手段２５で上部横枠材６及び下部横枠材７に固着されると共に、取付け孔２６を介して保護カバー１８が着脱可能に取り付けられ、また開き戸を閉じた状態における第１揺動アーム１７Ａに対し、揺動回転位置を規制するアームストッパー２７が設けられている。
【００４０】
なお、アームストッパー２７を取り外した状態で第１揺動アーム１７Ａを閉鎖限度位置以上に揺動回転（図面では時計方向へ）させると、緩衝ばね部材１２はばね力が作用しない定常状態になるので、この状態で緩衝ばね部材１２を着脱させると、ばねが飛散することが無く容易且つ安全であり、このためにアームストッパー２７を着脱可能にする必要があるが、図示の実施形態ではベースプレート１４のねじ孔にボルトを螺合させてアームストッパー２７にしている。
【００４１】
開き戸の開閉装置１は、開き戸３に取り付けたヒンジ具４Ｂを、物置本体２側の上部横枠材６及び下部横枠材７の挿入用開口部１０に挿入すると、内蔵されたヒンジ受け具４Ａにヒンジ具４Ｂが係止保持されると共に、このヒンジ機構４の連結によって開き戸３は、物置本体２に対して開閉可能に支承される。
【００４２】
ドアクローザ５は、保護カバー１８を被着した状態でべースプレート１４側を物置本体２側に取り付けておき、開き戸３の補強縦桟１５に取付け金具１６を取り付けると、物置本体２と開き戸３の間が第１及び第２の揺動アーム１７Ａ，１７Ｂで構成されたリンク機構１７で連結されるが、取付け金具１６の取付作業は開き戸３を全開状態にして容易に行うことができる。
【００４３】
次に、図７及び図８で開き戸の開閉状態とドアクローザー５の動きを説明すると、図示の実施形態では開き戸３は全閉状態から略６０度の中間点から全開状態まで略１００度の揺動回転角度で開閉操作され、これによりリンク機構１７は全閉位置Ｐ１から略６０度の中間位置Ｐ２を経て全開位置Ｐ３に移行され、緩衝ばね部材１２は第１揺動アーム１７Ａによるねじり変形で姿勢を変えながら、付勢方向及びばね力が順次変化する。
【００４４】
すなわち、開き戸３の開閉に連動した第２揺動アーム１７Ｂによって、梃子作用の力点となる第１揺動アーム１７Ａの他端側が操作されると、第１揺動アーム１７Ａは梃子の支点となる第１揺動支点Ｘ１を中心に揺動回転し、梃子の作用点となる可動支持部Ｓ２を移動させて図８で示すように、緩衝ばね部材１２のばね力を変化させると共に、第２揺動アーム１７Ｂを介して開き戸３に作用する付勢方向を、中間位置Ｐ２を境に閉鎖方向又は解放方向に切り替える。
【００４５】
また図示の実施形態では、開閉操作を容易に行えるように、人の腕の動きに適合させて中間点を略６０度に設定し、隣接位置に同様の組立物置を設置した場合でも、開閉の邪魔にならないように全開状態を略１００度に設定し、閉じる際の風圧を相殺する方向に作用するように、全閉状態でも閉じる方向へ緩衝ばね部材１２が付勢するようにしている。
【００４６】
開き戸の開閉装置１は、開き戸３の全閉状態（図３）から把手を把持して解放操作するとドアキャッチが開錠し、閉鎖方向に付勢している緩衝ばね部材１２のばね力に抗して、開き戸３は僅かな引き出し力で容易に第１揺動アーム１７Ａは死点となる中間点に移行され、中間点を越えると解放方向に付勢するばね力の助勢を得て、迅速且つ容易に解放限度位置のドアウトッパー１３に係止保持させることができる。
【００４７】
これにより、開き戸３は予め設定された図２の開放状態で係止保持され、把持していた把手から手を離しても開き戸３は図２の状態を維持すると共に、半開き状態でも中間点を越えた位置では風などに煽られても、解放方向に付勢する緩衝ばね部材１２のばね力によって開き戸３が急激に閉じるこがなく、人体が危険に晒される恐れがない。
【００４８】
開き戸３を全開状態（図２）から把手を把持して閉鎖操作すると、係止保持板２１と突起部２３の間に狭持されていた係止部２４が離脱し、解放方向に作用している緩衝ばね部材１２のばね力に抗して、開き戸３は僅かな押圧力で容易に中間点に移行され、中間点を越えると閉鎖方向に付勢するばね力の助勢を得て、迅速且つ容易に閉鎖限度位置のドアキャッチに係止保持させることができる。
【図面の簡単な説明】
【図１】本発明による開き戸の開閉装置を、組立物置に適用した実施形態を示す使用状態における斜視図。
【図２】同じく組立物置に適用した実施形態で開き戸を開いた状態の平面図。
【図３】同じく組立物置に適用した実施形態で開き戸を閉じた状態の平面図。
【図４】同じく組立物置に適用した実施形態で開き戸を閉じた状態の拡大側面図。
【図５】同じく組立物置に適用した実施形態でドアストッパーの拡大正面図
【図６】ドアストッパーに使用する緩衝ばね部材の他の実施形態の説明図。
【図７】開き戸の開閉状態の説明図。
【図８】開閉時におけるばね力及び開き戸の開閉力を示す概略特性図。
【符号の説明】
１開き戸の開閉装置
２組立物置本体
３開き戸
４ヒンジ機構
４Ａヒンジ受け具
４Ｂヒンジ具
５ドアクローザ
６上部横枠材（鴨居）
７下部横枠材（敷居）
８上部枠材
９下部枠材
１０挿入用開口部
１１定着板
１２緩衝ばね部材
１３ドアストッパー
１４ベースプレート
１５補強縦桟
１６取付け金具
１７リンク機構
１７Ａ第１揺動アーム
１７Ｂ第２揺動アーム
１８保護カバー
１９支柱
２０差込孔
２１係止保持板
２２固着手段
２３突起部
２４係止部
２５ねじ手段
２６取付け孔
２７アームストッパー
Ｓ１固定支持部
Ｓ２可動支持部
Ｘ１第１揺動支点
Ｘ２第２揺動支点
Ｘ３第３揺動支点[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an opening / closing device for an opening door in which a spring-type door closer is attached to an opening / closing door of a hinged door type, and can be applied to various opening / closing doors of the hinged door type, but particularly a metal assembly device installed outdoors. The present invention relates to an opening / closing device for a hinged door that is effective when applied to a hinged door.
[0002]
[Prior art]
This type of hinged door opening and closing device is fitted with a spring-type door closer using a buffer spring member such as a coil spring between the building body and the door, and is closed using the biasing force of the built-in buffer spring member. In some cases, the hinged door is gently pulled back to provide buffering, and when it is released, the opening limit position of the hinged door is regulated.
[0003]
Examples of spring-type door closers for this purpose include those disclosed in Japanese Utility Model Publication No. 6-17974 and Japanese Patent No. 3023649. In these door closers, cylindrical coil springs that are multiplexed on the outer periphery of the pivot shaft of the arm to be swung and rotated. Is used in a state of being wound and housed in a casing.
[0004]
In addition, the door closers of metal assembly doors installed outdoors are not very used due to cost constraints, and are inexpensive as a stopper means for simply restricting the opening / closing limit position of the door when released. Etc. were used.
[0005]
[Problems to be solved by the invention]
However, when these conventional door closers are used, the shock-absorbing action may be adversely affected, making it impossible to open and close the doors quickly and easily. In the case of a hinged door such as a storeroom, the door is blown by the wind in strong winds and freely swings and rotates, which may cause danger to the human body.
[0006]
In addition, the buffer spring member used in the door closer is not easy to assemble and remove the coil spring at the time of manufacture and repair, and the spring force adapted to the size and weight of the hinged door only by replacing the coil spring There is a problem that requires a solution such as being difficult to obtain.
[0007]
That is, since the coil spring is wound around the pivot in the casing, the coil spring must be wound around the pivot and housed in the casing when assembled, and the casing must be disassembled and removed from the pivot when removed. If it is contained in a state of being energized, there is a risk of danger.
[0008]
In addition, when changing to a coil spring having a different number of turns, winding diameter or wire diameter in order to adjust the spring force, it is necessary to replace the pivot shaft and casing in conformity with this. For this reason, it is difficult to share components other than the coil spring, which is undesirable in terms of cost reduction and inventory management at the manufacturer.
[0009]
Therefore, the present invention provides a hinged door opening and closing device that can solve these problems of the prior art, and it is possible to quickly and easily perform opening and closing operations using a door closer that has a particularly simple structure and is inexpensive. It can be applied to hinged doors such as metal assembly stands installed outdoors.
[0010]
In addition, the spring force adapted to the size and weight of the hinged door can be obtained only by replacing the buffer spring member, the use of a spring other than the coil spring as the buffer spring member is possible, and parts other than the buffer spring member are shared It is an opening / closing device for a hinged door that can be made into a simple structure.
[0011]
[Means for Solving the Problems]
In the present invention, one side of the building main body side is rotatably connected by a hinge mechanism, and the other side is detachably connected by a door catch interlocked with a handle to provide an opening door. The opening and closing device with a door closer in between is the target.
[0012]
In this door closer, a first swing arm is pivotally attached to a base plate attached to the building main body, a second swing arm is pivotally attached to the hinged door, and the other end of each swing arm is connected in a pivoted state. The mechanism and one of the mounting portions are fixedly supported on the base plate side and the other of the mounting portions are movably supported on the first swing arm side, and the first swing arm can be attached and detached at the opening limit position of the hinged door And a door stopper for locking and holding.
[0013]
In this door closer, the second swinging arm swings and rotates the first swinging arm in conjunction with opening and closing of the hinged door, and the spring is biased toward the closing direction in the forward direction and the releasing direction in the backward direction with the middle point as the dead point. The movable support portion of the buffer spring member is displaced to the position to be moved.
[0014]
In this hinged door opening and closing device, the biasing direction of the hinged door by the buffer spring member is switched at the middle point which is the dead point, and it is possible to quickly and easily perform the door opening and closing operation with a small operating force. Yes, it is latched and held by a door stopper provided at the release limit position when fully opened, and is latched and held by a door catch provided at the closed limit position when fully closed.
[0015]
In addition, the spring force of the buffer spring member acts in the closing direction even when the hinged door is fully closed to the closing limit position, but it also has a buffering action by receiving air resistance from the inside of the building, There is no risk that it will close gently and generate impact noise or damage the door stop.
[0016]
In addition, when the hinged door is fully opened to the release limit position, the buffer spring member acts in the direction of assisting the release and can be quickly locked and held by the door stopper. Even if this is done, the hinged door will not be suddenly closed by the biasing force of the buffer spring member, and the human body will not be exposed to danger.
[0017]
The buffer spring member in the hinged door opening and closing device can take a form in which mounting portions provided at both ends can be attached to and detached from the base plate side and the one end side swing arm of the link mechanism, and the whole is substantially Ω. A form using a torsion spring having a (omega) shape and a small number of turns can be employed.
[0018]
This makes it possible to easily attach and remove the buffer spring member at the time of manufacturing or repair, and replace the buffer spring member with a different spring force according to the size and weight of the hinged door, and share other than the buffer spring member It is possible to reduce costs and simplify inventory management.
[0019]
Further, unlike the prior art, the buffer spring member does not need to be wound around the outer periphery of the pivot and accommodated in the casing, and an inexpensive door closer can be provided by using a torsion spring that is inexpensive and does not take up space. At the same time, maintenance including attachment and detachment of the buffer spring member at the time of manufacture and repair can be easily performed.
[0020]
The base plate is provided with a detachable arm stopper that holds and holds the first swing arm at the closing limit position of the hinged door. When the arm stopper is removed, the first swing arm swings beyond the closing limit position. It can take the form which rotates and makes a buffer spring member into the steady state which does not act as a spring.
[0021]
Accordingly, the buffer spring member can be easily attached and detached during manufacturing or repair, and the buffer spring member does not scatter, which is safe.
[0022]
The door stopper in the opening / closing device of the hinged door has a base side fixed to the base plate and a distal end side separated from the surface of the base plate, and a free end side is inclined upward to curve the contact surface into a wave shape. Further, it is possible to adopt a configuration constituted by a latch holding plate and an arc-shaped protrusion provided on the surface of the base plate.
[0023]
As a result, the locking portion of the one-side swing arm can be easily attached and detached between the locking holding plate and the protruding portion, and the locking holding plate and the protruding portion are in point contact with both surfaces of the locking portion. It can be held firmly.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a hinged door opening and closing apparatus according to the present invention will be described in detail with reference to the accompanying drawings showing a preferred embodiment applied to an assembly stand. FIG. 1 is a perspective view in a use state in which the present invention is applied to an assembly stand. 2 is a plan view in the fully open state, FIG. 3 is a plan view in the fully closed state, FIG. 4 is an enlarged side view in the fully closed state, FIG. 5 is an enlarged front view of the door stopper, and FIG. FIGS. 7 and 7 are explanatory diagrams of the open / close state of the hinged door, and FIG. 8 is a schematic characteristic diagram showing the spring force and the open / close force of the hinged door during opening and closing.
[0025]
As shown in FIG. 1, the hinged door opening / closing device 1 connects the assembly body 2 and the hinged door 3 so that they can be opened and closed by a hinge mechanism 4, and a door closer 5 mounted on the container body 2 side is opened by a link mechanism 17. A door that is connected to the side 3 and is located at the opposite side of the hinge mechanism 4 of the hinged door 3 and a door that locks or unlocks the door with the storage body 2 side in conjunction with the operation of the handle. A catch is installed.
[0026]
The hinge mechanism 4 can take various known forms. In this embodiment, the hinge mechanism according to the connector proposed by the applicant of the present invention and disclosed in Japanese Patent Laid-Open No. 2000-161320 is disclosed. 4, the hinge holder 4 </ b> A mounted on the upper frame member 6 and the lower frame member 7 of the assembly body 2, and the hinge member 4 </ b> B mounted on the upper frame member 8 and the lower frame member 9 of the hinged door 3. ing.
[0027]
The hinge mechanism 4 will not be described in detail by referring to Japanese Patent Laid-Open No. 2000-161320, but a hinge receiver 4A, which is a female connector, is mounted on the assembly body 2 side, and the upper horizontal frame member 6 and the lower horizontal frame member 7 are provided with a rectangular insertion opening 10 in front of the hinge member 4B, which is a male connector fitting and locked to the hinge receiver 4A. The fixing plate 11 is fixed to the frame member 9 and pivotally attached to the hinge 4B.
[0028]
The door closer 5 is fixed to an upper horizontal frame member 6 such as a duck of the assembly body 2 and a lower horizontal frame member 7 such as a sill, and a base plate 14 to which constituent members such as a buffer spring member 12 and a door stopper 13 are attached. Further, the mounting bracket 16 mounted on the reinforcing vertical rail 15 of the hinged door 3 is connected by a link mechanism 17 constituted by the first and second swing arms 17A and 17B, and the main parts such as the buffer spring member 12 and the like. A protective cover 18 is attached to the cover.
[0029]
The link mechanism 17 pivotally attaches one end side of the first swing arm 17A to the base plate 14 so as to form a first swing support point X1, and the second end side of the first swing arm 17A and the second side. A second swing fulcrum X2 is formed by pivoting one end side of the swing arm 17B so that the other end side of the second swing arm 17B and the mounting bracket 16 are pivotally mounted. Three swing fulcrums X3 are formed.
[0030]
The link mechanism 17 pulls the first swing arm 17A when released while the second swing arm 17B changes the angle by the second and third swing support points X2 and X3 in conjunction with the opening / closing operation of the hinged door 3. At the time of closing, the first swing arm 17A is pressed to rotate and rotate the first swing arm 17A around the first swing support point X1 within a predetermined angle range.
[0031]
The buffer spring member 12 has one of the attachment portions provided at both ends fixed to the base plate 14 side which is a fixed member by a detachable fixing means to be a fixed support portion S1, and the other of the attachment portions is a link mechanism which is a movable member. The first swing arm 17A is fixed to the first swing arm 17A by a detachable fixing means to be a movable support portion S2. The swing support rotation of the first swing arm 17A causes the movable support portion S2 to be displaced, and the fixed support portion S1. The mounting pitch of is expanded or reduced.
[0032]
The buffer spring member 12 is set at an intermediate point where the first swing arm 17A swings and rotates so as to minimize the mounting pitch and maximize the spring force, and the fixed support portion S1 and the movable support portion S2. Further, the extending direction of the first swing arm 17A is linear, and a dead point where no spring force acts on the link mechanism 17 is formed, and the biasing direction of the spring acting on the hinged door 3 with this intermediate point as a boundary The spring force gradually decreases after switching.
[0033]
In the illustrated embodiment, a torsion coil spring is used as the buffer spring member 12. For example, a steel wire having a wire diameter of about 5 mm is wound about 1.5 times in an annular shape having a winding diameter of about 35 mm, The curling shape is curved so that the entire shape is approximately Ω (omega), one of the mounting portions is on a support column 19 standing on the base plate 14, and the other mounting portion is the first swinging fulcrum of the first swinging arm 17A. Removably attached by being screwed to the tip side from X1.
[0034]
However, the buffer spring member 12 is not limited to a torsion coil spring, and a plate spring may be formed in a substantially Ω shape to cause a torsion spring action like the buffer spring member 12a of the embodiment illustrated in FIG. In addition to these, various buffer spring members having similar functions can be used, and an appropriate form is adopted as desired.
[0035]
In addition, the buffer spring member 12 has only a common mounting pitch at both ends, and a plurality of types having different spring forces are prepared in advance by changing the wire diameter, winding diameter, or number of turns, and is necessary depending on the size and weight of the hinged door. It is possible to replace and use a desired buffer spring member that can obtain a sufficient spring force, thereby reducing costs and facilitating inventory management.
[0036]
As shown in detail in FIG. 5, the door stopper 13 is disposed on the back surface side through the insertion hole 20 formed in the base plate 14 on the base side, and the front end side is separated from the surface side of the base plate 14. A substantially Z-shaped latching and holding plate 21 is provided, and the base side of the latching and holding plate 21 is fixed to the base plate 14 by screw fixing means 22 using bolts and nuts.
[0037]
Further, the door stopper 13 is formed so that the locking end plate 21 is bent upward and inclined so that the locking portion 24 formed at the tip of the first swing arm 17A can be easily attached and detached. The contact surface with the locking portion 24 is curved into a wave shape so that the upper surface of the portion 24 can be pressed firmly in a point contact state.
[0038]
Furthermore, the door stopper 13 has an arcuate shape on the surface side of the base plate 14 that contacts the locking portion 24 at the position of the locking holding plate 21 in order to facilitate the attachment / detachment of the locking portion 24 and to strengthen the locking and holding. The protruding portion 23 is provided, and the locking portion 24 is sandwiched between the protruding portion 23 and the locking holding plate 21.
[0039]
The base plate 14 is fixed to the upper horizontal frame member 6 and the lower horizontal frame member 7 by screw means 25 using bolts and nuts through a mounting hole provided in a U-shaped mounting portion 14a formed on the front side. At the same time, the protective cover 18 is detachably attached through the attachment hole 26, and an arm stopper 27 is provided for restricting the swing rotation position with respect to the first swing arm 17A in a state where the hinged door is closed. .
[0040]
When the first swing arm 17A is swung and rotated (clockwise in the drawing) beyond the closing limit position with the arm stopper 27 removed, the buffer spring member 12 is in a steady state where no spring force acts. When the buffer spring member 12 is detached and attached in this state, the spring does not scatter and is easy and safe. For this purpose, the arm stopper 27 needs to be detachable. In the illustrated embodiment, the base plate 14 A bolt is screwed into the screw hole to form the arm stopper 27.
[0041]
When the hinged device 4B attached to the hinged door 3 is inserted into the opening 10 for insertion of the upper horizontal frame member 6 and the lower horizontal frame member 7 on the storage body 2 side, the hinged door opening / closing device 1 is incorporated in the hinge receiving device 4A. The hinge device 4B is locked and held, and the hinged door 3 is supported by the hinge mechanism 4 so as to be openable and closable with respect to the storage body 2.
[0042]
In the door closer 5, the base plate 14 side is attached to the storage body 2 side with the protective cover 18 attached, and the mounting bracket 16 is attached to the reinforcing vertical rail 15 of the hinged door 3. Are connected by the link mechanism 17 constituted by the first and second swing arms 17A and 17B, but the mounting work of the mounting bracket 16 can be easily performed with the hinged door 3 fully opened.
[0043]
Next, the opening / closing state of the hinged door and the movement of the door closer 5 will be described with reference to FIGS. 7 and 8. In the illustrated embodiment, the hinged door 3 swings approximately 100 degrees from the fully closed state to the fully open state from the middle point of approximately 60 degrees. The link mechanism 17 is moved from the fully closed position P1 to the fully open position P3 through the intermediate position P2 of approximately 60 degrees, and the buffer spring member 12 is twisted by the first swing arm 17A. The urging direction and the spring force change sequentially while changing the posture.
[0044]
That is, when the other end side of the first swing arm 17A, which is the power point of the lever action, is operated by the second swing arm 17B interlocked with the opening / closing of the hinged door 3, the first swing arm 17A becomes the fulcrum of the lever. As shown in FIG. 8, the movable support portion S2, which acts as an action point of the lever, is moved around the first swing fulcrum X1 to change the spring force of the buffer spring member 12, and the second swing. The urging direction acting on the hinged door 3 via the moving arm 17B is switched to the closing direction or the releasing direction with the intermediate position P2 as a boundary.
[0045]
Further, in the illustrated embodiment, even when the same assembly place is installed at an adjacent position, the opening / closing operation is performed even when the intermediate point is set to approximately 60 degrees so as to be adapted to the movement of the human arm so that the opening / closing operation can be easily performed. The fully open state is set to approximately 100 degrees so as not to obstruct the operation, and the buffer spring member 12 is urged in the closing direction even in the fully closed state so as to act in a direction to cancel the wind pressure at the time of closing.
[0046]
The opening / closing device 1 of the hinged door resists the spring force of the buffer spring member 12 which is unlocked when the handle is released from the fully closed state (FIG. 3) of the hinged door 3 (FIG. 3) and the door catch is unlocked. Then, the swing door 3 is easily moved to the intermediate point which becomes the dead point with a slight pulling force, and when the intermediate point is exceeded, the spring force urging in the release direction is obtained and the quick swing arm 17A is quickly In addition, it can be easily held and held by the drawer 13 at the release limit position.
[0047]
Thereby, the hinged door 3 is locked and held in the preset open state of FIG. 2, and the hinged door 3 maintains the state of FIG. 2 even if the hand is released from the gripping handle, and the intermediate point is maintained even in the half-opened state. Even if it is blown by wind or the like at a position beyond this, the hinged door 3 is not suddenly closed by the spring force of the buffer spring member 12 biased in the releasing direction, and the human body is not exposed to danger.
[0048]
When the hinged door 3 is gripped from the fully opened state (FIG. 2) and is closed, the locking portion 24 held between the locking holding plate 21 and the protrusion 23 is released and acts in the release direction. Against the spring force of the buffer spring member 12, the hinged door 3 is easily shifted to the intermediate point with a slight pressing force, and when the intermediate point is exceeded, the spring force urged in the closing direction is obtained quickly and quickly. It can be easily locked and held by the door catch at the closing limit position.
[Brief description of the drawings]
FIG. 1 is a perspective view of a hinged door opening / closing device according to the present invention in an operating state showing an embodiment in which the hinged door opening / closing device is applied to an assembly room.
FIG. 2 is a plan view showing a state in which the hinged door is opened in the embodiment similarly applied to the assembly stand.
FIG. 3 is a plan view showing a state in which the hinged door is closed in the embodiment similarly applied to the assembly stand.
FIG. 4 is an enlarged side view showing a state in which the hinged door is closed in the embodiment similarly applied to the assembly stand.
FIG. 5 is an enlarged front view of a door stopper in an embodiment similarly applied to an assembly stand. FIG. 6 is an explanatory view of another embodiment of a buffer spring member used for the door stopper.
FIG. 7 is an explanatory diagram of an open / close state of a hinged door.
FIG. 8 is a schematic characteristic diagram showing the spring force and the opening / closing force of the hinged door during opening and closing.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Opening door opening / closing apparatus 2 Assembly-placement main body 3 Opening door 4 Hinge mechanism 4A Hinge receiving tool 4B Hinge tool 5 Door closer 6 Upper side frame material (kamoi)
7 Lower horizontal frame material (sill)
8 Upper frame material 9 Lower frame material 10 Insertion opening 11 Fixing plate 12 Buffer spring member 13 Door stopper 14 Base plate 15 Reinforcement vertical beam 16 Mounting bracket 17 Link mechanism 17A First swing arm 17B Second swing arm 18 Protective cover 19 Post 20 Insertion hole 21 Locking holding plate 22 Fixing means 23 Protruding part 24 Locking part 25 Screwing means 26 Mounting hole 27 Arm stopper S1 Fixed support part S2 Movable support part X1 First swing support point X2 Second swing support point X3 Third swing fulcrum

Claims

One side of the building body is pivotally connected by a hinge mechanism, and the other side is detachably connected by a door catch linked to a handle to provide an opening door, and a door closer is provided between the building body side and the opening door. This door closer has a first swing arm pivotally attached to the base plate attached to the building body, a second swing arm pivotally connected to the hinged door, and the other end of each swing arm connected in a pivoted state. The link mechanism, the buffer spring member that fixedly supports one of the mounting portions on the base plate side, and the other of the mounting portions movably supported on the first swing arm side, and the first swing arm at the release limit position of the hinged door. A movable stopper of the buffer spring member is provided on the tip side of the swinging fulcrum of the first swinging arm pivotally attached to the base plate, and is interlocked with the opening / closing of the hinged door. 2 shakes When the first swing arm is swung and rotated by the arm, the movable support part of the buffer spring member is displaced, and the intermediate point is set at a position where the spring force is maximized by minimizing the mounting pitch of the movable support part and the fixed support part. At the midpoint, the extending directions of the fixed support portion, the movable support portion and the first swing arm are arranged on a straight line to form a dead point where the spring force does not act on the link mechanism. A hinged door opening and closing device characterized in that the biasing direction of a spring acting on the hinged door is switched and the spring force is gradually reduced, and the hinged door is spring-biased in the closing direction in front of the intermediate point and in the releasing direction behind the intermediate point. .

2. The hinged door opening and closing device according to claim 1, wherein the shock-absorbing spring members are detachably attached to the base plate side and one end-side swing arm of the link mechanism.

The hinged door opening and closing device according to claim 1 or 2, wherein the buffer spring member is a torsion spring having a small number of turns and having a substantially Ω shape as a whole.

One side of the building body is pivotally connected by a hinge mechanism, and the other side is detachably connected by a door catch linked to a handle to provide an opening door, and a door closer is provided between the building body side and the opening door. This door closer has a first swing arm pivotally attached to the base plate attached to the building body, a second swing arm pivotally connected to the hinged door, and the other end of each swing arm connected in a pivoted state. The link mechanism, the buffer spring member that fixedly supports one of the mounting portions on the base plate side, and the other of the mounting portions movably supported on the first swing arm side, and the first swing arm at the release limit position of the hinged door. A door stopper that is detachably locked and held, and the second swinging arm swings and rotates the first swinging arm in conjunction with opening and closing of the hinged door. Now open in the release direction Door to a position to be spring biased, so as to displace the movable support of the buffer spring member, the base plate side, a detachable arm stopper for engaging holds the first swing arm in the closed limit position of the leaf door A hinged door opening and closing device characterized in that when the arm stopper is removed, the first swing arm swings and rotates beyond the closing limit position, and the buffer spring member is brought into a steady state in which no spring action occurs.

One side of the building body is pivotally connected by a hinge mechanism, and the other side is detachably connected by a door catch linked to a handle to provide an opening door, and a door closer is provided between the building body side and the opening door. This door closer has a first swing arm pivotally attached to the base plate attached to the building body, a second swing arm pivotally connected to the hinged door, and the other end of each swing arm connected in a pivoted state. The link mechanism, the buffer spring member that fixedly supports one of the mounting portions on the base plate side, and the other of the mounting portions movably supported on the first swing arm side, and the first swing arm at the release limit position of the hinged door. A door stopper that is detachably locked and held, and the second swinging arm swings and rotates the first swinging arm in conjunction with opening and closing of the hinged door. Now open in the release direction Door to a position to be spring biased, so as to displace the movable support of the buffer spring member, the door stopper, with to separate the distal end side by fixing the base portion to the base Supureto from base Supureto surface of the first The free end side to which the tip end side of the swing arm is attached and detached is composed of a locking holding plate having an upwardly inclined shape and a contact surface curved in a wave shape, and an arc-shaped protrusion provided on the surface of the base plate. A hinged door opening and closing device.