JP3922430B2

JP3922430B2 - Hinge device

Info

Publication number: JP3922430B2
Application number: JP2001390798A
Authority: JP
Inventors: 丁李
Original assignee: 共栄工業株式会社
Priority date: 2001-12-25
Filing date: 2001-12-25
Publication date: 2007-05-30
Anticipated expiration: 2021-12-25
Also published as: CN1208536C; JP2003184407A; CN1428491A; TW508406B

Description

【０００１】
【発明の属する技術分野】
本発明は、家具等における扉と筐体とを回動可能に連結するヒンジ装置に関する。
【０００２】
【従来の技術】
家具の扉を開閉させるヒンジ装置について、例えば、特開平５−１３３１５４号公報には、家具本体の側板内側から家具内部空間に本体側ヒンジを突出させないような工夫がなされている。これは家具の収納空間を有効に利用するためである。
【０００３】
【発明が解決しようとする課題】
然しながら、扉を閉じた状態で、第１リンクと第２リンクは依然として家具内の収納空間に大きく突出しており、家具の収納空間を有効に利用すると言う観点からは未だ不充分と言わざるを得ない。また、扉を開放した状態において、該扉がふらつかないように保持することは高品質の家具等として望まれ、更には、扉を閉じた状態において、該扉を閉じる操作とは別の操作をし、該扉が不用意に開かないように閉じた状態に保持させるものは従来から有るが、家具を使用する人が、単に扉を閉じる操作だけを行えば、その結果として扉を閉じた状態に保持できれば簡便で望ましい。また、扉を閉じようとする場合に、扉が完全に閉じる少し手前の位置まで閉じた場合に、残りの閉じ操作を行わなくても、自動的に引き込んで閉じることができれば簡便で好ましい。また、扉を閉めた場合の筐体との衝突音の発生を低減させることができれば好ましい。
依って、本発明は、家具等の収納空間をより有効に利用できるヒンジ装置の提供を目的とする。
また、扉を開いた状態や閉じた状態において、扉のふらつきを防止することを目的とする。
また、人が扉を完全に閉めきらなくても、残りは自動的に引き込んで閉められるヒンジ装置の提供を目的とする。
また、扉を閉じた際に生ずる音を低減させることのできるヒンジ装置の提供を目的とする。
【０００４】
【課題を解決するための手段】
上記目的に鑑みて請求項１では、筐体に取り付けられる筐体側ベース部と、扉に取り付けられてリンク収容凹部を有する扉側ベース部と、該両ベース部間を揺動可能に連結する４つのリンクを備えたヒンジ装置において、第１リンクは一端部が筐体側ベース部に枢軸を介して回動可能に連結され、他端部が第２リンクの一端部の外側又は内側に枢軸を介して回動可能に連結され、第２リンクは第３リンクの内側に配設されて枢軸を介して回動可能に連結され、他端部が扉側ベース部のリンク収容凹部内側に枢軸を介して回動可能に連結され、第３リンクは一端部が筐体側ベース部に枢軸を介して回動可能に連結され、他端部が第４リンクの一端部に枢軸を介して回動可能に連結され、第４リンクは他端部が扉側ベース部のリンク収容凹部内側に枢軸を介して回動可能に連結され、扉は筐体に対して概ね１８０度の開度に開扉可能であって、扉を閉めた場合に、扉側ベース部のリンク収容凹部には前記４つのリンクがほぼ収納可能であり、前記第４リンクには、前記他端部側に配設した第１押圧部材と、該第１押圧部材を常時付勢する付勢手段とを備え、一方、前記第４リンクの他端部を枢軸を介して回動可能に連結している扉側ベース部のリンク収容凹部内側には、該枢軸を挿通させた軸受部があり、該軸受部の外周は、第４リンクが該枢軸を介して回動する際に前記第１押圧部材が当接すると共に、該軸受部の孔中心を中心とした円弧状の当接面と、該円弧状当接面よりも引っ込んだ凹部であって、扉を完全に閉じる手前位置において、前記第１押圧部材を落し込ませることができると共に、扉が閉じた状態において係合する第１凹部と、前記円弧状当接面よりも引っ込んだ凹部であって、扉が概ね１８０度開いた状態において係合する第２凹部とを具備し、前記第４リンクには、該第４リンクの前記一端部に設けた枢軸を挿通させ、該枢軸の外径よりも長い長軸径を有した長孔を有する第２押圧部材を更に具備し、前記付勢手段は第１、第２の押圧部材を互いに離反させる方向に常時付勢すると共に、前記長軸はこの付勢方向に沿っており、一方、扉側ベース部のリンク収容凹部内側には、扉が完全に閉じる幾分か前の位置において前記第２押圧部材と係合できる係合部を設けており、該係合部と第２押圧部材との係合部分は、該係合部と第２押圧部材との係合状態において、扉に対してその閉位置方向に所定以上の力を付与すれば、第２押圧部材の長孔内の枢軸に対する該第２押圧部材の可動範囲内の移動によって係合を離脱できる寸法形状であることを特徴とするヒンジ装置を提供する。
【０００５】
リンク収容凹部を有する扉側ベース部は、扉自体に直接リンク収容凹部を設けてもよく、また、別部品としてのブラケット部材にリンク収容凹部を設け、これを扉に装着してもよい。後者の場合は、ブラケット部材を扉に埋め込むことが収納空間をより有効に利用できることに繋がる。また、筐体側ベース部は、筐体自体でもよく、また、別部品として形成して、筐体に装着してもよい。後者の場合、筐体内面に対して埋め込むか、或いは可及的に薄く形成することが収納空間をより有効利用できることに繋がる。以上のことは、他の請求項においても同様である。
扉側ベース部のリンク収容凹部には、扉を閉めた場合に第１から第４までの４つのリンクがほぼ収納可能であるため、筐体の収納空間を可及的に有効利用できる。また、扉は概ね１８０度開くため、収容空間への物の出し入れが容易となる。
更には、第４リンクには、前記他端部側に配設した第１押圧部材と、該第１押圧部材を常時付勢する付勢手段とを備え、一方、前記第４リンクの他端部を枢軸を介して回動可能に連結している扉側ベース部のリンク収容凹部内側には、該枢軸を挿通させた軸受部があり、該軸受部の外周は、第４リンクが該枢軸を介して回動する際に前記第１押圧部材が当接する当接面と、扉を完全に閉じる手前位置において、前記第１押圧部材を落し込ませることができると共に、扉が閉じた状態において係合する第１凹部と、概ね１８０度開いた状態において係合する第２凹部とを具備するため、扉を概ね１８０度開いた状態では、付勢手段に押圧された第１押圧部材が軸受部外周の第２凹部に係合するため、全開状態の扉が不用意にふらつくことが防止できる。また、扉を完全に閉じる手前位置で、付勢手段に押圧された第１押圧部材が軸受部外周の第１凹部に落ち込んで係合するため、人が扉を完全に閉じるまで操作することなく、閉位置に近い位置まで閉じることにより、後はこの機構によって自動的に引き込まれて閉じられ、簡便であると共に、係合によって閉じた状態の扉が不用意に開く方向へ開こうとふらつくことが防止できる。
【０００６】
更には、扉側ベース部のリンク収容凹部内側には、扉が完全に閉じる幾分か前の位置において、第２押圧部材と係合できる係合部を設けているため、付勢手段によって付勢されている第２押圧部材が係合部に係合して扉の閉じる勢いが止められる。しかし、扉を更に閉じる方向に所定以上の力を付与すれば、係合部と第２押圧部材との係合は解除できる。即ち、第２押圧部材がその長孔の存在により、付勢手段の付勢力に抗して係合部から離隔する方向に後退して係合が解除される。従って、扉を残りの角度回動させて完全に閉じることができ、この場合の閉じる量は小さいため、扉と筐体との衝突による音は必然的に小さくなる。
【０００７】
請求項２では、筐体に取り付けられる筐体側ベース部と、扉に取り付けられてリンク収容凹部を有する扉側ベース部と、該両ベース部間を揺動可能に連結する４つのリンクを備えたヒンジ装置において、第１リンクは一端部が筐体側ベース部に枢軸を介して回動可能に連結され、他端部が第２リンクの一端部の外側又は内側に枢軸を介して回動可能に連結され、第２リンクは第３リンクの内側に配設されて枢軸を介して回動可能に連結され、他端部が扉側ベース部のリンク収容凹部内側に枢軸を介して回動可能に連結され、第３リンクは一端部が筐体側ベース部に枢軸を介して回動可能に連結され、他端部が第４リンクの一端部に枢軸を介して回動可能に連結され、第４リンクは他端部が扉側ベース部のリンク収容凹部内側に枢軸を介して回動可能に連結され、扉は筐体に対して概ね１８０度の開度に開扉可能であって、扉を閉めた場合に、扉側ベース部のリンク収容凹部には前記４つのリンクがほぼ収納可能であり、前記第４リンクには、該第４リンクの前記一端部に設けた枢軸を挿通させ、該枢軸の外径よりも長い長軸径を有した長孔を有する第２押圧部材と、該第２押圧部材を常時付勢する付勢手段とを具備し、前記長軸は該付勢手段の付勢方向に沿っており、一方、扉側ベース部のリンク収容凹部内側には、扉が完全に閉じる幾分か前の位置において、前記第２押圧部材と係合できる係合部を設けており、該係合部と第２押圧部材との係合部分は、該係合部と第２押圧部材との係合状態において、扉に対してその閉位置方向に所定以上の力を付与すれば、第２押圧部材の長孔内の枢軸に対する該第２押圧部材の可動範囲内の移動によって係合を離脱できる寸法形状であることを特徴とするヒンジ装置を提供する。
【０００８】
扉側ベース部のリンク収容凹部には、扉を閉めた場合に第１から第４までの４つのリンクがほぼ収納可能であるため、筐体の収納空間を可及的に有効利用できる。また、扉は概ね１８０度開くため、収容空間への物の出し入れが容易となる。
更には、扉側ベース部のリンク収容凹部内側には、扉が完全に閉じる幾分か前の位置において、第２押圧部材と係合できる係合部を設けているため、付勢手段によって付勢されている第２押圧部材が係合部に係合して扉の閉じる勢いを低下させられる。しかし、扉を更に閉じる方向に所定以上の力を付与すれば、係合部と第２押圧部材との係合は解除できる。即ち、第２押圧部材がその長孔の存在により、付勢手段の付勢力に抗して係合部から離隔する方向に後退して係合が解除される。従って、扉を残りの角度回動させて完全に閉じることができ、この場合の閉じる量は小さいため、扉と筐体との衝突による音は必然的に小さくなる。
【０００９】
請求項３では、前記係合部は山形状凸部であって、一方の斜面は急な傾斜面であり、その反対側斜面は、扉を開く場合の第２押圧部の移動にとって抵抗が小さくなる緩い傾斜面である請求項１又は２記載のヒンジ装置を提供する。
請求項１又は２の作用効果に加えて、扉が閉じる方向では、係合部の急傾斜面によって一時的に扉の閉じ動作が止められ、所定以上の力によって扉を完全に閉じ、その後、再び開く方向に回動させる場合には、係合部の緩やかな傾斜面と当接するので回動抵抗が小さく、扉の開動作に支障を来さない。
【００１０】
【発明の実施の形態】
以下、本発明を添付図面に示す実施形態例に基づき、更に詳細に説明する。
図１は本発明に係るヒンジ装置の分解斜視図であり、図２は家具等の筐体ＫＴと扉Ｄ１に適用した場合の上面視による部分断面図であり、作動をも示している。図３〜図６は、本発明の第４リンクに設けている機構と、その作動を説明する部分破断図である。図２に示す扉Ｄ２は隣接した家具のものである。
【００１１】
主として図１を参照しつつ、ヒンジ装置の各構成部材と互いの連結につき説明する。家具等の筐体に固定する筐体側ベース部ＫＢは、断面がコ字状の下側部材ＫＢ１の内側に、断面がコ字状の上側部材ＫＢ２を図示の方向で被せ、夫々の一端部に設けた孔に、枢軸としての（以下の各ピンについても同様であり、記載を省略する）ピンＰ０を挿通させる。また、３本のネジＮ１によって筐体に固定しつつ、上下部材の一体化を強固にしている。更に、他のネジＮ２は筐体ＫＴの側壁の内側面をなす内側板部材ＫＴＡ（図２）に対して固定された上側部材に対する下側部材の高さ調節に使用される。また、他のネジＮ２による上側部材と下側部材の調節された位置関係を、３本のネジＮ１の内、図２でいえば、最も右側に位置しているネジＮ１によって固定する。
【００１２】
上記筐体側ベース部ＫＢの下側部材の他端部には、孔Ｐ１ＡＨが設けられており、この端部領域には上側部材の他端部は至っていない。そこで、この下側部材他端部の内側に、断面がコの字状の第１リンクＬ１の一端部Ｌ１Ａを位置させ、孔を前記孔Ｐ１ＡＨに合致させた状態でピンＰ１Ａを挿通させる。また、第１リンクの他端部Ｌ１Ｂの内側には第２リンクＬ２の一端部Ｌ２Ａを位置させ、夫々に設けている孔にピンＰ２Ａを挿通させる。また、第２リンクの他端部Ｌ２Ｂは、後述するが、図示の如き収納空間ＳＰを設けた扉側ベース部ＤＢの開放側端部（図１の左端部）の内側に位置させ、両部材に設けた孔にピンＰ２Ｂを挿通させる。
【００１３】
また、第２リンクＬ２は一端部と他端部との中間部にも孔を設けており、該第２リンクを図示の如き形状の第３リンクＬ３の内側に位置させ、該第３リンクの中央部に設けている孔に前記第２リンクの中間部の孔を合致させてピンＰ３Ｃを挿通させる。また、筐体側ベース部の下側部材ＫＢ１の他端部側の前記孔Ｐ１ＡＨ近くに他の孔Ｐ３ＡＨが設けられており、第３リンクＬ３の一端部Ｌ３Ａが、この下側部材他端部の外側に位置して、第３リンク一端部の孔を前記孔Ｐ３ＡＨに合致させた状態でピンＰ３Ａを挿通させる。また、第３リンクは、第１リンクをもその内側に位置させることのできるような内側幅寸法を有している。更には、第１リンクと第２リンクが第３リンク内に出入り可能なように、上側部に大きな開口部Ｌ３Ｋが設けられている。下側部は全面的に開放されている。
【００１４】
第３リンクの他端部Ｌ３Ｂの内側には、断面コ字状の第４リンクＬ４の一端部Ｌ４Ａが位置し、夫々に設けられている孔にピンＰ３Ｂが挿通されている。第４リンクの他端部Ｌ４Ｂは前述の扉側ベース部ＤＢの内側に位置させ、該他端部の孔と、扉側ベース部の長さ方向中央部（図１の左右方向中央部）に設けられている軸受部ＪＢ（図３）とこれに隣接した左右端部の軸受部分ＪＢ’とに貫通形成した孔とにピンＰ４Ｂを挿通させる。
【００１５】
更には，前記第４リンクには、第１押圧部材Ｍ１と、付勢手段の一例としてのコイルスプリングＲと、第２押圧部材Ｍ２とを、該第４リンクと共に回動するように設けている。即ち、第２押圧部材Ｍ２には貫通孔Ｐ３ＢＨが設けられており，これを第４リンク内に配設し、第３リンクと第４リンクと共に、前記ピンＰ３Ｂを挿通させている。この貫通孔は、コイルスプリングＲによって付勢される方向に長い長孔であり、この長軸長さはピンＰ３Ｂの直径よりも所定以上長い。
【００１６】
第４リンクの他端部側には第１押圧部材Ｍ１を配設し、これら第１、第２の押圧部材間にコイルスプリングＲを配設し、互いにこれらの部材が離れる方向に常時付勢する。この場合、第１押圧部材Ｍ１の先部は既述の扉側ベース部の軸受部ＪＢに当接しているため、コイルスプリングに付勢されてもその位置を保持できる。これらの押圧部材の作動説明は図３から図６によって後述する。
【００１７】
第１リンクの両側板部に設けた切欠部Ｋ３Ａ，Ｋ３Ｃの前者は、扉Ｄ１（ヒンジ装置）を完全に開いた場合に、第１リンクがピンＰ１Ａに当接して開動作を停止させるためであり、逆にいうと、完全に開く途中において第１リンクがピンＰ１Ａに干渉することを防止するためである。後者Ｋ３Ｃは、扉Ｄ１（ヒンジ装置）を完全に閉じる前に、第１リンクがピンＰ３Ｃに干渉することを防止するためである。更には、第３リンクＬ３の両側板部の下縁中央部の切欠部ＫＪＢ’は、扉Ｄ１を完全に閉じる前に、第３リンクが扉側ベース部ＤＢの左右端部の軸受部分ＪＢ’に干渉することを防止するためである。また、一端部Ｌ３Ａ近くの切欠部Ｋ２Ｂは、扉Ｄ１を完全に閉じる前に、第３リンクがピンＰ２Ｂに干渉することを防止するためである。
【００１８】
上記ヒンジ装置を筐体ＫＴと扉Ｄ１との間に取り付け、扉を完全に閉じた状態を図２に示しており、更に完全に開いた状態を２点鎖線で示している。まず、筐体側ベース部ＫＢは、筐体側壁の外側面を形成する外側板部材ＫＴＢと、内側板部材ＫＴＡの形成する内側面との間に埋設すべく、即ち、内側面から収納空間内に突出することが防止されるように取り付けている。
【００１９】
一方、扉Ｄ１には扉側ベース部ＤＢが取り付けられている。扉側ベース部は、扉の外側面を形成する外側板部材Ｄ１Ｂと、内側板部材Ｄ１Ａの形成する内側面との間に埋設すべく、即ち、内側面から収納空間内に突出することが防止されるように取り付けられている。具体的には、扉側ベース部を内側板部材Ｄ１Ａに設けた穴部に挿入し、そのフランジ部ＦＲを穴部の周縁部に乗せた状態でネジ止め固定している。
【００２０】
扉Ｄ１を完全に閉じた場合、図２に示すように第１〜第４のリンクは折り畳まれ、扉側ベース部の収納空間ＳＰ内に収まっている。この例のヒンジ装置では、扉側ベース部のフランジ部外表面に対して、ぎりぎり一杯に収まっており、厳密に表現すれば、扉の内側板部材Ｄ１Ａの成す扉の内側面より、フランジ部の厚さ分だけ筐体収納空間側に出ているとも表現できるが、実質的には、収納空間に突出していないといえる。また、大きな第３リンクの内側に、他の第１、第２、第４の各リンクが部分的にはみ出してはいるが、殆ど収納された状態となっている。また、この場合、第２リンクの幅は第４リンクの内側に収まる寸法であるため、第２リンクの一部分が第４リンクの内側に入っており、干渉しない。
【００２１】
扉の一端側が筐体の縁部（当接用のゴム部材等を含む意味）に当った状態、即ち、完全に閉じた状態では、第１リンクＬ１は切欠部Ｋ３ＣにおいてピンＰ３Ｃに近接している。第３リンクＬ３は切欠部Ｋ２ＢにおいてピンＰ２Ｂに近接していると共に、切欠部ＫＪＢ’において扉側ベース部ＤＢの左右端部の軸受部分ＪＢ’に近接している。また、第３リンクの他端部Ｌ３Ｂ寄りの側板部下縁が、扉側ベース部ＤＢの底面に近接している。更には、第４リンクＬ４が扉側ベース部ＤＢの底面に近接している。
【００２２】
扉が完全に開いた状態（２点鎖線の状態）は、図示の如く概ね１８０度の開度といえる。この状態に移動した主たる部材には、移動前と同じ記号にダッシュ記号を付加している。この状態では、第１リンクＬ１’が切欠部（Ｋ３Ａ）においてピンＰ３Ａに当接している。また、第３リンクＬ３’がピンＰ２Ｂ’に当接している。この２箇所の度当りによって概ね１８０度の開度に止め、それ以上に開かず、隣接した筐体の扉Ｄ２と干渉することを防止している。
【００２３】
この図２に示されているように平面視において、本発明に係るヒンジ装置を構成する各部材は、筐体の内側板部材ＫＴＡの成す内側面の前方への延長ラインよりも内側（収納空間側）には突出していない。従って、筐体の開口幅を狭めることなく利用できて、筐体内部の収納空間から物を出し入れする作業が円滑に行える。
【００２４】
以上説明した本発明に係るヒンジ装置では、第２リンクＬ２の一端部Ｌ２Ａが第１リンクＬ１の他端部Ｌ１Ｂの内側に配設された機構であるが、逆に外側に位置させ、その他のリンクとの関係は同様であっても、図２で説明した各作用効果を同様に奏する。但し、前述した第２リンクが第１リンクの内側に配設された場合の、第２リンクの幅は第４リンクの内側に収まる寸法であるため、閉じた場合に第２リンクの一部分が第４リンクの内側に入っており、干渉しないとの説明は変更となる。即ち、第４リンクが第２リンクの内側に位置するように第２リンクの幅を形成してもよく、また、同じ程度の幅にして、何れか一方のリンクの干渉する部位を削った形態にしてもよい等に変更となる。
【００２５】
次に、第１リンクと第２リンクの配設関係が、上記した内側、外側の何れの場合であっても、以下の図３から図６を参照した機構の作動は成立する。
図３は扉が閉じた状態、即ち、図２において扉を実線で示した状態の場合の、第４リンク内に配設された機構と、扉側ベース部の一部を破断して示したものである。また図４は扉を完全に開いた状態の、図３に対応する図である。ピンＰ４Ｂが挿通している軸受部ＪＢの外周面ＣＳは、ピン受用の孔の中心位置を中心とした円の一部である（円柱表面の一部である）。
【００２６】
扉が完全に開いた状態における第４リンク内の第１押圧部材Ｍ１の位置に対応させて、円弧状の軸受部外周面に第２凹部Ｋ２を設けている。また、扉が閉じた状態に対応して、円弧状の軸受部外周面に第１凹部Ｋ１を設けている。また、第１押圧部材Ｍ１の先部は、概ね楕円状や放物線状等のように滑らかな先細状に形成されている。
【００２７】
このため、扉が完全に閉まる前の、扉の開度で言って２５度程度前の位置まで閉めれば、その後は、コイルスプリングＲに付勢されている第１押圧部材Ｍ１が第１凹部Ｋ１内に自然に滑り込み（落ち込み）、これにより扉は自動的に引き込まれて完全に閉じることができる。このことは、人の手で最後まで閉めきる必要が無くて簡便であると共に、強く閉めすぎた場合に生じる大きな音を防止し、静かに閉めることができるという効果を生ずる。また、第１凹部と第１押圧部材との係合によって第４リンクの動きが規制されるため、閉じられた扉が振動等によって不用意に開放されたりするふらつきが防止される。
【００２８】
扉を開く場合は、完全に開ききる少し前に（１８０度近くになって）、やはり、第１押圧部材Ｍ１が第２凹部Ｋ２に滑り込み始め、その後自動的に滑り込み、これによって扉が完全に開いた状態になる。そして、第２凹部と第１押圧部材との係合によって第４リンクの動きが規制されるため、完全に開かれた扉が、振動等によって不用意に閉じる方向に移動するふらつきが防止される。
【００２９】
図３と図４を参照しつつ説明した上記事項は、図３に図示しているように、補助板部材ＨＢを取り外していても、また更に、第２押圧部材Ｍ２が無くても、図５や図６のように装着していても同様である。補助板部材や第２押圧部材Ｍ２を装着している場合は後述のように、扉が完全に閉まる方向に自動引き込みされている途中において、一旦停止させられることが異なる。
【００３０】
補助板部材ＨＢの裏側所定位置には、扉側ベース部ＤＢに設けた切欠部ＴＡ’と係合、離脱の可能な係合部ＴＡを設けており、補助板部材を着脱可能に構成している。また、前面の所定位置には係合部としての山状の凸部ＴＢを設けており、扉側ベース部に装着された状態において、その収納空間ＳＰの開放側を上、底面側を下とすれば、補助板部材は上下方向に延伸するように装着されていることになる。凸部の上側面ＫＫは、補助板部材の面に対して直交する方向に近いという意味で、急な傾斜角度に形成されており、その下側の面ＹＫは緩い傾斜角度に形成されている。また、凸部の高さ寸法は、既述の第２押圧部材Ｍ２に設けた貫通孔Ｐ３ＢＨの長軸長さ（長軸径）から、ピンＰ３Ｂの直径を差し引いた長さ以下である。
【００３１】
図５を参照すれば、補助板部材を装着した状態では、扉を閉じようとして完全に閉じる前の、例えば２５度程度手前の位置において、既述の如き機構によって扉は自動的に閉まり始める。しかし、完全に閉まる少し前、例えば、扉の開度角度で言って５度程度手前位置において、第２押圧部材Ｍ２が凸部の急傾斜面ＫＫに引っ掛り、扉の動きは一旦停止させられる。その後、所定以上の力で扉を押せば、第２押圧部材がコイルスプリングＲの付勢力に抗して後退し、凸部との係合が外れる。これによって扉を完全に閉じることができる。
【００３２】
また、第２押圧部材の先部は、所定の力によって凸部の急傾斜面との係合を離脱可能なように、概ね楕円状や放物線状等のように滑らかな先細状に形成されている。この凸部との係合によって扉の動きを一旦停止させると、扉が筐体に強く当って大きな音の発生することが防止できる。この後、該凸部を乗り越えるために、所定の力で押して閉め切る場合には、扉の動きの角度が小さい（５度程度）ため、大きな衝突音は発生しない。
【００３３】
図６を参照すれば、閉じた状態の扉を開扉させようとする場合は、第２押圧部材Ｍ２は凸部の下側に位置しており、この場合、緩い傾斜面ＹＫに接触しているが、傾斜角度が緩いため、大きな抵抗を生むことなく、第４リンクは凸部ＴＢを乗り越えられる。従って、扉の開放操作に不都合は生じない。しかし、図３に示すように、この機構作用を使用するか否かは使用者の好みに応じ、補助板部材を取り外した状態で開閉させることもできる。
【００３４】
更には、以上の説明では、軸受部ＪＢの表面ＣＳが円弧状であって、これの２箇所に凹部Ｋ１，Ｋ２を設けているが、これらを一切設けず、第４リンクは単にピンＰ４Ｂを枢軸として回動可能であって、該第４リンクには第２押圧部材Ｍ２を付勢手段としてのコイルスプリングＲが付勢するだけの機構を有しており、一方、扉側ベース部ＤＢの内側には、既述の凸部ＴＢを有するヒンジ装置とすることもできる。
【００３５】
この場合は、人が扉を閉めようとした場合に、完全に閉じる少し前に、第２押圧部材と凸部とが係合して、少なくとも扉の閉じる勢いを低下させる。閉じる勢いが程々であれば、扉の勢いを一時的に停止させ、その後更に押せば、完全に閉じる。何れにしても、扉が筐体の縁部等に当って大きな音が発生することを防止できる効果がある。凸部ＴＢは、着脱自在な補助板部材に形成するのではなく、扉側ベース部ＤＢの内側に一体的に突出形成していてもよい。
【００３６】
また、以上説明したヒンジ装置は、扉に対しては、通常、上下２箇所に設けるが、この場合、左右の扉間の隙間が、上下位置において不均一の場合は、既述の通り、他のネジＮ２によって筐体側ベース部の下側部材の位置調節によって隙間調節が可能である。更に、以上の説明では、家具等はスチール製等の板金製を前提に説明しているが、木製家具等であっても全く同様であり、制限は無い。
【００３７】
【発明の効果】
以上の説明から明らかなように本発明によれば、家具等の収納空間をより有効に利用できるヒンジ装置が提供可能となる。
【図面の簡単な説明】
【図１】図１は本発明に係るヒンジ装置の分解斜視図である。
【図２】図２は本発明に係るヒンジ装置を組み込んだ家具の作動説明図である。
【図３】図３は部分破断による一部機構の作動説明図である。
【図４】図４は図３と異なる状態での、部分破断による作動説明図である。
【図５】図５は部分破断による他の一部機構の作動説明図である。
【図６】図６は図５と異なる状態での、部分破断による作動説明図である。
【符号の説明】
ＤＢ扉側ベース部
ＫＢ筐体側ベース部
Ｋ１第１凹部
Ｋ２第２凹部
ＫＫ急傾斜面
Ｌ１第１リンク
Ｌ２第２リンク
Ｌ３第３リンク
Ｌ４第４リンク
Ｍ１第１押圧部材
Ｍ２第２押圧部材
ＳＰリンク収容凹部
ＴＢ凸部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hinge device that rotatably connects a door and a housing in furniture or the like.
[0002]
[Prior art]
Regarding a hinge device that opens and closes a furniture door, for example, Japanese Patent Application Laid-Open No. 5-133154 has been devised so that the main body side hinge does not protrude from the inside of the side plate of the furniture main body into the interior space of the furniture. This is to effectively use the storage space for furniture.
[0003]
[Problems to be solved by the invention]
However, with the door closed, the first link and the second link still protrude greatly into the storage space in the furniture, and it is still inadequate from the viewpoint of effectively using the storage space for the furniture. Absent. In addition, it is desirable for high-quality furniture or the like to hold the door so that it does not fluctuate when the door is opened. Further, when the door is closed, an operation different from the operation for closing the door is desired. However, there is a conventional device that keeps the door closed so as not to open carelessly, but if a person using furniture simply performs the operation of closing the door, the door is closed as a result. It is convenient and desirable if it can be maintained in the above. Further, when the door is to be closed, if the door is closed to a position just before the door is completely closed, it is convenient and preferable if the door can be automatically pulled in and closed without performing the remaining closing operation. Moreover, it is preferable if generation | occurrence | production of the collision sound with the housing | casing at the time of closing a door can be reduced.
Therefore, an object of this invention is to provide the hinge apparatus which can utilize storage spaces, such as furniture, more effectively.
It is another object of the present invention to prevent the door from wobbling when the door is open or closed.
It is another object of the present invention to provide a hinge device that can be automatically retracted and closed even if a person does not completely close the door.
Moreover, it aims at provision of the hinge apparatus which can reduce the sound produced when a door is closed.
[0004]
[Means for Solving the Problems]
In view of the above-described object, in claim 1, a housing-side base portion attached to the housing, a door-side base portion attached to the door and having a link receiving recess, and a swingable connection between the both base portions 4 In the hinge device having two links, one end of the first link is pivotally connected to the housing-side base portion via a pivot, and the other end is located outside or inside the one end of the second link via the pivot. The second link is disposed inside the third link and is pivotally connected via a pivot, and the other end is located inside the link receiving recess of the door side base via the pivot. One end of the third link is pivotally connected to the housing side base via a pivot, and the other end is pivotable to one end of the fourth link via a pivot. The other end of the fourth link is connected to the inside of the link receiving recess of the door side base. The door is pivotably connected via a pivot, and the door can be opened at an opening of approximately 180 degrees with respect to the housing. When the door is closed, the link receiving recess of the door-side base portion Four links can be substantially accommodated, and the fourth link includes a first pressing member disposed on the other end side, and an urging means for constantly urging the first pressing member, In addition, there is a bearing portion through which the pivot shaft is inserted inside the link receiving recess of the door side base portion that rotatably connects the other end portion of the fourth link via the pivot shaft. The first pressing member abuts when the fourth link rotates through the pivot, and the arcuate abutment surface centered on the hole center of the bearing portion, and the arcuate abutment surface It is a recessed part that is more retracted, and the first pressing member can be dropped at a position before the door is completely closed. Rutotomoni, comprises a first recess for engagement in a state where the door is closed, the a recess receding than arcuate abutment surface, and a second recess for engagement in a state in which the door is opened approximately 180 degrees The fourth link is further provided with a second pressing member having a long hole having a long axis diameter longer than the outer diameter of the pivot, through which the pivot provided at the one end of the fourth link is inserted. The urging means constantly urges the first and second pressing members in directions away from each other, and the long axis is along the urging direction, while the link receiving recess of the door side base portion. On the inner side, an engaging portion that can be engaged with the second pressing member at a position somewhat before the door is completely closed is provided, and the engaging portion between the engaging portion and the second pressing member is If a predetermined force or more is applied to the door in the closed position direction in the engaged state between the engaging portion and the second pressing member, the second pressing member with respect to the pivot in the elongated hole of the second pressing member. Dimensional shape that can be disengaged by movement within the movable range A hinge device is provided.
[0005]
The door-side base portion having the link receiving recess may be provided with a link receiving recess directly on the door itself, or may be provided with a link receiving recess on a bracket member as a separate part and attached to the door. In the latter case, embedding the bracket member in the door leads to more effective use of the storage space. Further, the casing-side base portion may be the casing itself, or may be formed as a separate part and attached to the casing. In the latter case, embedding in the inner surface of the housing or forming it as thin as possible leads to more effective use of the storage space. The same applies to other claims.
When the door is closed, the four links from the first to the fourth links can be substantially stored in the link receiving recess of the door-side base portion, so that the storage space of the housing can be used as effectively as possible. In addition, since the door opens approximately 180 degrees, it is easy to put in and out of the accommodation space.
Furthermore, the fourth link includes a first pressing member disposed on the other end side, and a biasing unit that constantly biases the first pressing member, while the other end of the fourth link There is a bearing portion through which the pivot shaft is inserted inside the link receiving recess of the door side base portion that is pivotally connected via a pivot shaft, and the outer periphery of the bearing portion has a fourth link connected to the pivot shaft. In the state where the first pressing member can be dropped at the contact surface with which the first pressing member comes into contact and the position where the door is completely closed when rotating through the door, and the door is closed Since the first concave portion to be engaged and the second concave portion to be engaged in a state of being opened approximately 180 degrees are provided, the first pressing member pressed by the urging means is a bearing when the door is opened approximately 180 degrees. Engage with the second recess on the outer periphery of the part to prevent the door from being fully opened from inadvertently wobbling Kill. In addition, since the first pressing member pressed by the urging means falls and engages with the first recess on the outer periphery of the bearing portion at a position before the door is completely closed, the user does not operate until the door is completely closed. By closing to a position close to the closed position, it is automatically retracted and closed by this mechanism, and it is convenient, and the door in the closed state by the engagement is staggered to open inadvertently. Can be prevented.
[0006]
Furthermore Since the engagement portion that can be engaged with the second pressing member is provided inside the link receiving recess of the door side base portion at a position somewhat before the door is completely closed, it is urged by the urging means. The second pressing member is engaged with the engaging portion and the momentum of closing the door is stopped. However, the engagement between the engaging portion and the second pressing member can be released if a predetermined force or more is applied in the direction of further closing the door. That is, due to the presence of the elongated hole, the second pressing member moves backward in the direction away from the engaging portion against the urging force of the urging means and is disengaged. Therefore, the door can be completely closed by rotating the remaining angle. In this case, since the amount of closing is small, the sound caused by the collision between the door and the housing is necessarily reduced.
00 07 ]
Claim 2 Then, in the hinge apparatus provided with the housing side base portion attached to the housing, the door side base portion attached to the door and having the link receiving concave portion, and the four links connecting the both base portions so as to be swingable. The first link is pivotally connected to the housing-side base via a pivot, and the other end is pivotally connected to the outside or the inside of the second link via the pivot. The second link is disposed on the inner side of the third link and is rotatably connected via the pivot, and the other end is rotatably connected to the inside of the link receiving recess of the door side base via the pivot. One end of the third link is pivotally connected to the housing base via a pivot, the other end is pivotally connected to one end of the fourth link via a pivot, and the fourth link is the other link. The end is pivotable inside the link housing recess on the door base. The door can be opened at an opening of about 180 degrees with respect to the housing, and when the door is closed, the four links can be almost accommodated in the link accommodation recess of the door side base portion. And the fourth link is inserted through a pivot provided at the one end of the fourth link, and has a second pressing member having a long hole having a major axis diameter longer than the outer diameter of the pivot, Biasing means for constantly biasing the second pressing member, and the long axis is along the biasing direction of the biasing means, while the door is located inside the link housing recess of the door side base portion. An engagement portion that can be engaged with the second pressing member is provided at a position slightly before the complete closing, and an engagement portion between the engagement portion and the second pressing member is formed between the engagement portion and the second pressing member. 2 In the engaged state with the pressing member, if a predetermined force or more is applied to the door in the closed position direction, the pivot in the elongated hole of the second pressing member is applied. Providing a hinge device, characterized in that the size and shape capable of releasing the engagement by the movement of the movable range of the second pressing member against.
00 08 ]
When the door is closed, the four links from the first to the fourth links can be substantially stored in the link receiving recess of the door-side base portion, so that the storage space of the housing can be used as effectively as possible. In addition, since the door opens approximately 180 degrees, it is easy to put in and out of the accommodation space.
Furthermore, an engagement portion that can be engaged with the second pressing member is provided on the inside of the link receiving recess of the door side base portion at a position slightly before the door is completely closed. The urging second pressing member engages with the engaging portion, and the closing moment of the door is reduced. However, the engagement between the engaging portion and the second pressing member can be released if a predetermined force or more is applied in the direction of further closing the door. That is, due to the presence of the elongated hole, the second pressing member moves backward in the direction away from the engaging portion against the urging force of the urging means and is disengaged. Therefore, the door can be completely closed by rotating the remaining angle. In this case, since the amount of closing is small, the sound caused by the collision between the door and the housing is necessarily reduced.
00 09 ]
Claim 3 Then, the engaging portion is a mountain-shaped convex portion, and one slope is a steep slope, and the slope on the opposite side is a gentle slope that reduces resistance to movement of the second pressing portion when the door is opened. Claim 1 or 2 A hinge device as described is provided.
Claim 1 or 2 In addition to the above effects, the door closing operation is temporarily stopped by the steeply inclined surface of the engaging part in the closing direction of the door, and the door is completely closed by a predetermined force or more, and then rotated again. In the case of moving the door, it makes contact with the gently inclined surface of the engaging portion, so that the rotational resistance is small and does not hinder the door opening operation.
00 10 ]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail based on an embodiment shown in the accompanying drawings.
FIG. 1 is an exploded perspective view of a hinge device according to the present invention, and FIG. 2 is a partial sectional view in a top view when applied to a housing KT such as furniture and a door D1, and also shows operation. 3 to 6 are partially broken views for explaining the mechanism provided in the fourth link of the present invention and the operation thereof. The door D2 shown in FIG. 2 is that of adjacent furniture.
00 11 ]
Mainly referring to FIG. 1, each component of the hinge device and its mutual connection will be described. The housing-side base portion KB fixed to a housing such as furniture covers the inner side of the lower member KB1 having a U-shaped cross section and the upper member KB2 having a U-shaped cross section in the direction shown in the drawing, and is attached to each end portion. A pin P0 serving as a pivot (the same applies to the following pins and not described) is inserted through the provided hole. In addition, the upper and lower members are firmly integrated while being fixed to the housing by three screws N1. Furthermore, the other screw N2 is used to adjust the height of the lower member relative to the upper member fixed to the inner plate member KTA (FIG. 2) that forms the inner surface of the side wall of the housing KT. Further, the adjusted positional relationship between the upper member and the lower member by the other screw N2 is fixed by the screw N1 located on the rightmost side in FIG. 2 among the three screws N1.
00 12 ]
A hole P1AH is provided in the other end portion of the lower member of the casing-side base portion KB, and the other end portion of the upper member does not reach this end region. Therefore, one end L1A of the first link L1 having a U-shaped cross section is positioned inside the other end of the lower member, and the pin P1A is inserted in a state where the hole is aligned with the hole P1AH. Further, one end portion L2A of the second link L2 is positioned inside the other end portion L1B of the first link, and the pin P2A is inserted into a hole provided in each end. Further, the other end portion L2B of the second link is positioned inside the open side end portion (left end portion in FIG. 1) of the door side base portion DB provided with the storage space SP as shown in the drawing, and both members The pin P2B is inserted through the hole provided in.
00 13 ]
In addition, the second link L2 has a hole at an intermediate portion between the one end and the other end, and the second link is positioned inside the third link L3 having a shape as shown in the figure. The pin P3C is inserted through the hole provided in the center portion so that the hole in the middle portion of the second link is matched. Further, another hole P3AH is provided near the hole P1AH on the other end side of the lower member KB1 of the housing side base portion, and one end L3A of the third link L3 is connected to the other end of the lower member. The pin P3A is inserted in a state where it is located outside and the hole at the one end of the third link matches the hole P3AH. Further, the third link has an inner width dimension that allows the first link to be positioned inside the third link. Furthermore, a large opening L3K is provided on the upper side so that the first link and the second link can enter and leave the third link. The lower part is fully open.
00 14 ]
One end portion L4A of a fourth link L4 having a U-shaped cross section is positioned inside the other end portion L3B of the third link, and a pin P3B is inserted through a hole provided in each of the fourth links L4. The other end portion L4B of the fourth link is positioned inside the aforementioned door side base portion DB, and is provided at the hole in the other end portion and in the length direction center portion of the door side base portion (left and right direction center portion in FIG. 1). The pin P4B is inserted into a hole formed through the provided bearing portion JB (FIG. 3) and the left and right bearing portions JB ′ adjacent thereto.
00 15 ]
Furthermore, the 4th link is provided with the 1st press member M1, the coil spring R as an example of an urging | biasing means, and the 2nd press member M2 so that it may rotate with this 4th link. . That is, the second pressing member M2 is provided with a through hole P3BH, which is disposed in the fourth link, and the pin P3B is inserted together with the third link and the fourth link. This through-hole is a long hole that is long in the direction urged by the coil spring R, and the long-axis length is longer than the diameter of the pin P3B by a predetermined amount or more.
00 16 ]
A first pressing member M1 is disposed on the other end side of the fourth link, a coil spring R is disposed between the first and second pressing members, and the members are always biased in a direction in which these members are separated from each other. To do. In this case, since the tip portion of the first pressing member M1 is in contact with the bearing portion JB of the door-side base portion, the position can be maintained even when urged by the coil spring. The operation of these pressing members will be described later with reference to FIGS.
00 17 ]
The former of the cutouts K3A and K3C provided on both side plates of the first link is to stop the opening operation when the first link comes into contact with the pin P1A when the door D1 (hinge device) is completely opened. In other words, in order to prevent the first link from interfering with the pin P1A during the complete opening. The latter K3C is for preventing the first link from interfering with the pin P3C before the door D1 (hinge device) is completely closed. Furthermore, the notch KJB ′ at the lower edge central portion of both side plate portions of the third link L3 is formed so that the third link is a bearing portion JB ′ at the left and right end portions of the door-side base portion DB before the door D1 is completely closed. This is to prevent interference. Further, the notch K2B near the one end L3A is for preventing the third link from interfering with the pin P2B before the door D1 is completely closed.
00 18 ]
FIG. 2 shows a state in which the hinge device is attached between the housing KT and the door D1, and the door is completely closed, and a state in which the door is fully opened is indicated by a two-dot chain line. First, the housing side base part KB is to be embedded between the outer side plate member KTB forming the outer side surface of the side wall of the casing and the inner side surface formed by the inner side plate member KTA, that is, from the inner side surface into the storage space. It is attached so that it does not protrude.
00 19 ]
On the other hand, the door side base part DB is attached to the door D1. The door base portion should be embedded between the outer side plate member D1B forming the outer side surface of the door and the inner side surface formed by the inner side plate member D1A, that is, from protruding from the inner side surface into the storage space. It is attached to be. Specifically, the door base portion is inserted into a hole provided in the inner plate member D1A, and the flange portion FR is screwed and fixed in a state where the flange portion FR is placed on the peripheral edge portion of the hole portion.
00 20 ]
When the door D1 is completely closed, as shown in FIG. 2, the first to fourth links are folded and accommodated in the storage space SP of the door-side base portion. In the hinge device of this example, the flange portion of the door-side base portion is fully contained with respect to the outer surface of the flange portion, and strictly speaking, from the inner side surface of the door formed by the inner plate member D1A of the door, Although it can be expressed that it has come out to the housing storage space side by the thickness, it can be said that it does not substantially protrude into the storage space. Further, the other first, second, and fourth links partially protrude inside the large third link, but are almost accommodated. In this case, since the width of the second link is a size that fits inside the fourth link, a part of the second link is inside the fourth link and does not interfere.
00 21 ]
In a state where one end side of the door hits an edge of the housing (meaning including a rubber member for contact), that is, in a completely closed state, the first link L1 is close to the pin P3C at the notch K3C. Yes. The third link L3 is close to the pin P2B at the cutout portion K2B, and is close to the bearing portion JB ′ at the left and right end portions of the door-side base portion DB at the cutout portion KJB ′. Further, the lower edge of the side plate portion near the other end L3B of the third link is close to the bottom surface of the door side base portion DB. Furthermore, the 4th link L4 is adjoining to the bottom face of door side base part DB.
00 22 ]
A state where the door is completely opened (a state indicated by a two-dot chain line) can be said to have an opening of about 180 degrees as shown in the drawing. A dash symbol is added to the same symbol as before the main member that has moved to this state. In this state, the first link L1 ′ is in contact with the pin P3A at the notch (K3A). Further, the third link L3 ′ is in contact with the pin P2B ′. The degree of opening is approximately 180 degrees depending on the degree of the two places, and the door is not opened any more, preventing interference with the door D2 of the adjacent housing.
00 23 ]
As shown in FIG. 2, in a plan view, each member constituting the hinge device according to the present invention is located on the inner side of the extension line to the front of the inner side surface formed by the inner plate member KTA of the casing (the storage space). Side) is not protruding. Therefore, it can be used without narrowing the opening width of the housing, and the work of taking in and out the storage space inside the housing can be performed smoothly.
00 24 ]
In the hinge device according to the present invention described above, one end portion L2A of the second link L2 is a mechanism disposed inside the other end portion L1B of the first link L1. Even if the relationship with the link is the same, the effects described in FIG. However, when the second link described above is disposed inside the first link, the width of the second link is a size that fits inside the fourth link. The explanation that it is inside 4 links and does not interfere is changed. That is, the width of the second link may be formed so that the fourth link is located inside the second link, and the width of the second link is set to the same level and the part where one of the links interferes is cut off. It may be changed.
00 25 ]
Next, regardless of whether the first link and the second link are arranged on the inner side or the outer side, the operation of the mechanism referring to FIGS. 3 to 6 below is established.
FIG. 3 shows the mechanism disposed in the fourth link in a state where the door is closed, that is, in the state shown by the solid line in FIG. Is. FIG. 4 is a view corresponding to FIG. 3 with the door fully opened. The outer peripheral surface CS of the bearing portion JB through which the pin P4B is inserted is a part of a circle centering on the center position of the pin receiving hole (a part of the cylindrical surface).
00 26 ]
A second recess K2 is provided on the outer peripheral surface of the arc-shaped bearing portion so as to correspond to the position of the first pressing member M1 in the fourth link in a state where the door is completely opened. Moreover, the 1st recessed part K1 is provided in the circular-arc-shaped bearing part outer peripheral surface corresponding to the state which the door closed. Further, the tip portion of the first pressing member M1 is formed in a smooth tapered shape such as an elliptical shape or a parabolic shape.
00 27 ]
For this reason, if the door is closed to a position about 25 degrees before the door is completely closed, the first pressing member M1 biased by the coil spring R is then moved to the first recess K1. It slides in (sinks) naturally, so that the door can be automatically retracted and closed completely. This is convenient because it is not necessary to be completely closed by the hand of a person, and it is possible to prevent a loud sound generated when the cover is closed too much and to close it quietly. In addition, since the movement of the fourth link is restricted by the engagement between the first recess and the first pressing member, it is possible to prevent the closed door from being inadvertently opened due to vibration or the like.
00 28 ]
When opening the door, shortly before it is fully opened (close to 180 degrees), the first pressing member M1 starts to slide into the second recess K2, and then automatically slides. Opened. Since the movement of the fourth link is restricted by the engagement between the second recess and the first pressing member, the door that is completely opened is prevented from being fluctuated in a direction in which it is inadvertently closed due to vibration or the like. .
00 29 ]
The above-mentioned matters described with reference to FIGS. 3 and 4 are the same as those shown in FIG. 3, even if the auxiliary plate member HB is removed or even without the second pressing member M2. It is the same even if it is mounted as shown in FIG. When the auxiliary plate member or the second pressing member M2 is attached, the door is temporarily stopped in the middle of being automatically retracted in the direction in which the door is completely closed, as will be described later.
00 30 ]
At a predetermined position on the back side of the auxiliary plate member HB, an engagement portion TA that can be engaged with and detached from the notch portion TA ′ provided in the door side base portion DB is provided, and the auxiliary plate member is configured to be detachable. Yes. Further, a mountain-shaped convex portion TB as an engaging portion is provided at a predetermined position on the front surface, and when the storage space SP is mounted on the door side base portion, the open side of the storage space SP is up and the bottom surface side is down. In this case, the auxiliary plate member is mounted so as to extend in the vertical direction. The upper surface KK of the convex portion is formed at a steep inclination angle in the sense that it is close to the direction orthogonal to the surface of the auxiliary plate member, and the lower surface YK is formed at a gentle inclination angle. . The height of the convex portion is equal to or less than the length obtained by subtracting the diameter of the pin P3B from the long axis length (long axis diameter) of the through hole P3BH provided in the second pressing member M2.
00 31 ]
Referring to FIG. 5, in a state where the auxiliary plate member is mounted, the door starts to be automatically closed by the mechanism as described above at a position before, for example, about 25 degrees before the door is completely closed. However, the second pressing member M2 is caught on the steeply inclined surface KK of the convex portion slightly before it is completely closed, for example, about 5 degrees before the door opening angle, and the movement of the door is temporarily stopped. . Thereafter, when the door is pushed with a force greater than a predetermined force, the second pressing member moves backward against the urging force of the coil spring R and disengages from the convex portion. This allows the door to be completely closed.
00 32 ]
Further, the tip of the second pressing member is formed in a smooth tapered shape such as an ellipse or a parabolic shape so that the engagement with the steeply inclined surface of the convex portion can be released by a predetermined force. Yes. When the movement of the door is temporarily stopped by the engagement with the convex portion, it is possible to prevent the door from hitting the casing strongly and generating a loud sound. Thereafter, when the door is pushed and closed with a predetermined force in order to get over the convex portion, a large collision sound is not generated because the door moves at a small angle (about 5 degrees).
00 33 ]
Referring to FIG. 6, when the closed door is to be opened, the second pressing member M2 is located on the lower side of the convex portion, and in this case, is in contact with the loose inclined surface YK. However, since the inclination angle is loose, the fourth link can get over the convex portion TB without generating a large resistance. Therefore, there is no inconvenience in the door opening operation. However, as shown in FIG. 3, whether or not to use this mechanism action can be opened and closed with the auxiliary plate member removed, depending on the user's preference.
00 34 ]
Furthermore, in the above description, the surface CS of the bearing portion JB has an arc shape, and the recesses K1 and K2 are provided at two locations, but these are not provided at all, and the fourth link simply has the pin P4B. The fourth link has a mechanism that can only be biased by a coil spring R that biases the second pressing member M2 as a biasing means. On the inner side, the hinge device having the above-described convex portion TB may be used.
00 35 ]
In this case, when a person tries to close the door, the second pressing member and the convex portion are engaged with each other slightly before the door is completely closed, and at least the closing moment of the door is reduced. If the closing momentum is moderate, the door momentum is temporarily stopped, and then pushed further to completely close it. In any case, there is an effect that it is possible to prevent a loud sound from being generated when the door hits the edge of the casing. The convex part TB may not be formed on the detachable auxiliary plate member, but may be integrally projected inside the door side base part DB.
00 36 ]
In addition, the hinge device described above is usually provided at two places on the top and bottom of the door. In this case, if the gap between the left and right doors is not uniform at the top and bottom positions, as described above, The gap can be adjusted by adjusting the position of the lower member of the casing base portion with the screw N2. Further, in the above description, the furniture and the like are described on the assumption that they are made of sheet metal such as steel. However, the same applies to wooden furniture and the like, and there is no limit.
00 37 ]
【The invention's effect】
As is apparent from the above description, according to the present invention, it is possible to provide a hinge device that can more effectively use a storage space such as furniture.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a hinge device according to the present invention.
FIG. 2 is an operation explanatory view of furniture incorporating a hinge device according to the present invention.
FIG. 3 is an explanatory view of the operation of a partial mechanism by partial breakage.
FIG. 4 is an operation explanatory view by partial fracture in a state different from FIG. 3;
FIG. 5 is an operation explanatory view of another partial mechanism by partial breakage.
FIG. 6 is an operation explanatory view by partial fracture in a state different from FIG.
[Explanation of symbols]
DB door side base
KB Case side base
K1 first recess
K2 Second recess
KK Steeply inclined surface
L1 first link
L2 Second link
L3 3rd link
L4 4th link
M1 first pressing member
M2 second pressing member
SP link receiving recess
TB convex part

Claims

In a hinge device comprising a housing side base portion attached to a housing, a door side base portion attached to a door and having a link receiving recess, and four links that slidably connect between the both base portions,
One end of the first link is pivotally connected to the housing side base via a pivot, and the other end is pivotally connected to the outside or the inside of one end of the second link via a pivot,
The second link is disposed on the inner side of the third link and is rotatably connected via the pivot, and the other end is rotatably connected to the inside of the link receiving recess of the door side base via the pivot.
One end of the third link is pivotally connected to the housing-side base via a pivot, and the other end is pivotally connected to one end of the fourth link via a pivot.
The other end of the fourth link is pivotally connected to the inside of the link housing recess of the door side base via a pivot.
The door can be opened at an opening of approximately 180 degrees with respect to the housing,
When the door is closed, the four links can be almost accommodated in the link accommodation recess of the door side base part,
The fourth link includes a first pressing member disposed on the other end side, and a biasing unit that constantly biases the first pressing member,
On the other hand, there is a bearing portion through which the pivot shaft is inserted inside the link housing recess of the door-side base portion that rotatably connects the other end portion of the fourth link via the pivot shaft. The outer periphery is in contact with the first pressing member when the fourth link is rotated through the pivot, and has an arc-shaped contact surface centered on the hole center of the bearing portion and the arc-shaped contact. A first recess that is retracted from the surface, the first pressing member can be dropped at a position before the door is completely closed, and the arc is engaged when the door is closed. A recess recessed from the abutment surface, the second recess engaging in a state where the door is opened approximately 180 degrees ,
The fourth link is further provided with a second pressing member having a long hole having a long axis diameter longer than an outer diameter of the pivot, through which a pivot provided at the one end of the fourth link is inserted. The urging means constantly urges the first and second pressing members in a direction separating them from each other, and the long axis is along the urging direction.
On the other hand, an engagement portion that can be engaged with the second pressing member at a position slightly before the door is completely closed is provided inside the link housing recess of the door-side base portion. The engagement portion with the pressing member is a long hole of the second pressing member if a force of a predetermined level or more is applied to the door in the closed position direction in the engaged state between the engaging portion and the second pressing member. A hinge device characterized by having a size and shape that allows disengagement by movement within a movable range of the second pressing member with respect to an inner pivot .

In a hinge device comprising a housing side base portion attached to a housing, a door side base portion attached to a door and having a link receiving recess, and four links that slidably connect between the both base portions,
One end of the first link is pivotally connected to the housing side base via a pivot, and the other end is pivotally connected to the outside or the inside of one end of the second link via a pivot,
The second link is disposed on the inner side of the third link and is rotatably connected via the pivot, and the other end is rotatably connected to the inside of the link receiving recess of the door side base via the pivot.
One end of the third link is pivotally connected to the housing-side base via a pivot, and the other end is pivotally connected to one end of the fourth link via a pivot.
The other end of the fourth link is pivotally connected to the inside of the link housing recess of the door side base via a pivot.
The door can be opened at an opening of approximately 180 degrees with respect to the housing,
When the door is closed, the four links can be almost accommodated in the link accommodation recess of the door side base part,
The fourth link is inserted into a pivot provided at the one end of the fourth link, and a second pressing member having a long hole having a major axis diameter longer than the outer diameter of the pivot, and the second link Biasing means for constantly biasing the pressing member, and the long axis is along the biasing direction of the biasing means,
On the other hand, an engagement portion that can be engaged with the second pressing member is provided inside the link receiving recess of the door-side base portion at a position somewhat before the door is completely closed. The engagement portion with the second pressing member is the length of the second pressing member when a predetermined force or more is applied to the door in the closed position direction in the engaged state between the engaging portion and the second pressing member. A hinge device characterized by having a size and shape that allows disengagement by movement within a movable range of the second pressing member with respect to a pivot in the hole.

The engaging part is a mountain-shaped convex part, and one slope is a steep slope, and the opposite slope is a gentle slope that reduces resistance to movement of the second pressing part when the door is opened. The hinge device according to claim 1 or 2 .