JP3690700B2

JP3690700B2 - Hinges for doors in furniture

Info

Publication number: JP3690700B2
Application number: JP16061596A
Authority: JP
Inventors: 政美大箭
Original assignee: 共栄工業株式会社
Priority date: 1996-05-31
Filing date: 1996-05-31
Publication date: 2005-08-31
Anticipated expiration: 2016-05-31
Also published as: JPH09317302A

Description

【０００１】
【発明の属する技術分野】
本発明は、ロッカー、書庫、キャビネット等の家具類に好適に用いることのできる扉の蝶番装置に関し、更に詳しくは、扉をニ段階に開閉させて大きな開度を確保することのできる家具類における扉の蝶番装置の改良に関する。
【０００２】
【従来の技術】
事務用のロッカーや保管庫等に設けられた扉の蝶番装置には、特開平６−２４０９４３号公報および実公平５−３６９３９号公報等に示される如く、中間に連結板を介在して、扉を本体戸口に連結し、該扉をニ段階に開閉させる間接状部分を設けることにより、閉鎖した扉の外表面が面一と成る如く構成され、さらに、扉開放時には隣接された他のロッカー前面や他の家具の前面等に、干渉することなく、且つ、隣接する他のロッカー前面等に平行な状態にまで開放することができるように構成されたものが有る。
【０００３】
上記家具は、特に本体や扉等の外表面部分に耐久性に優れた金属素材を使用するものが主流となっており、製造時に蝶番装置や把手部品等を組み込む場合には、溶接や、ねじによる結合が行われるものである。金属製の部品は価格を低減することが困難であると共に、溶接やねじ締め等製造に要する作業工数が多く、完成された家具類も比較的高価な製品となることが避けられないものであった。
【０００４】
このような事務用の家具類では、蝶番装置の騒音を発する部分等の極限られた部分に、合成樹脂製の緩衝用部品を介在させること等が行われ、開閉時の静粛性や開閉操作の円滑化に配慮が成されるものであった。
【０００５】
近年、事務用家具に対しても、価格の低減を要求する声が高まり、ロッカーや保管庫等においても、扉の把手や解錠レバー等、必ずしも金属製である必要のない部分に関しては、合成樹脂化され、軽量化や、低コスト化が行われるようになりつつある。
【０００６】
【発明が解決しようとする課題】
ロッカーや保管庫等の家具類の扉における蝶番装置は、要求される耐久性と、作動性能を満足するために、従前より殆どの部品が金属により構成され、且つ、本体と扉への連結構造もまた、溶接やねじによる結合構造等を利用するものであり、本体重量を増大し、また、溶接部分の塗装仕上げ工程を増加し、長期に渡る使用により、溶接部やねじによる結合部分には錆びが発生したり、きしみによる騒音を発する等の欠点があり、また、高価な金属部品の多用は低価格化を妨げる要因の一つとなるものであった。
【０００７】
したがって、本発明の目的は、従前の家具類においては殆どの部品が金属製であった蝶番装置を、可能な限り合成樹脂化することにより、部品点数を減少し、組立て工数を削減すると共に、製品の軽量化を計り、錆び等の発生を防止し、且つ、きしみによる騒音の発生を抑え、より低価格化が可能な家具類における扉の蝶番装置を提供することにある。
【０００８】
【課題を解決するための手段】
上記課題を解決するために、請求項１の発明は、家具類の筐体開口縁の角部近傍に固着された筐体側蝶番を備え、該筐体側蝶番に対して一端側が垂直な第１枢軸を介して枢支される中間蝶番を有し、該中間蝶番の他端側に配された第２枢軸を介して扉側蝶番を備え、且つ、扉側蝶番は中間蝶番に対して第２枢軸に併設されたばね部材により閉鎖方向に回動付勢されており、扉側蝶番は合成樹脂から構成され、扉の枢支側角部に形成された切欠部の枢支端側に位置する一端には、扉裏面側に延長された垂直縁部側に嵌着する第１嵌着部が形成され、また、上記切欠部を越えて扉の中央側に延長された他端には、上方に向けて折曲し延長され、該扉の裏面側に形成された水平縁部側に嵌着する第２嵌着部が形成されたことを特徴とする家具類における扉の蝶番装置である。
【０００９】
上記発明によれば、扉側蝶番は、第１嵌着部を扉の枢支側の垂直縁部に嵌着すると同時に、第２嵌着部を扉の水平縁部に嵌着することができるので、従前に必要とされていた溶接やねじ等による特別な結合構造が不要となり、さらに、工具等を必要とせずに組立てを完了できるので、極めて簡単な取付作業により迅速に取付作業を完了することができる。また、扉側蝶番を合成樹脂化することにより、複雑な形状の部品同士を一体成形することが可能となり、部品点数を減少し、組立て工数を削減することができる。さらに、部品の軽量化を計り、錆びの発生や開閉時のきしみによる騒音を抑え、低価格化を実現することも可能となる。
【００１０】
請求項２の発明は、家具類の筐体開口縁の角部近傍に固着された筐体側蝶番を備え、該筐体側蝶番に対して一端側が垂直な第１枢軸を介して枢支される中間蝶番を有し、該中間蝶番の他端側に配された第２枢軸を介して扉側蝶番を備え、且つ、扉側蝶番は中間蝶番に対して第２枢軸に併設されたばね部材により閉鎖方向に回動付勢されており、合成樹脂から構成された上記扉側蝶番は、扉の枢支角部に形成された切欠部に配置され、その一端には扉の垂直縁部側に嵌着される第１嵌着部が設けられ、他端には、上方に向けて折曲され延長され扉の水平縁部側に嵌着される第２嵌着部が設けられており、該第１嵌着部は、垂直縁部から延長された補強リブに形成され、該垂直縁部に略平行且つ扉表壁裏面に略垂直に形成された係合舌片に、圧入されることで弾性的に突没して該係合舌片を乗り越え、抜出し不能に嵌着される係合爪を備え、該係合爪の上下には該係合舌片を上下で挟み込む保持壁を備えており、また、第２嵌着部は、水平縁部から延長された補強リブに形成され、該水平縁部に略平行且つ扉表壁裏面に略垂直に形成された折返しリブの挿入用切欠に挿入され、上記折返しリブと同様に形成され切欠部に近接して配置された係合舌片にスライド移動させることで噛合する噛合溝が形成され、該噛合溝の係合舌片に始めに噛合する部位は上下に拡開され、さらに、第２嵌着部の補強リブに対峙する側面は、上記切欠部側の一部が斜めに切除されてなることを特徴とする家具類における扉の蝶番装置である。
【００１１】
上記発明によれば、扉側蝶番は、第２嵌着部を、扉の折返しリブに形成された挿入用切欠に挿入し、水平縁部の下面に第２嵌着部を当接する状態から、扉の切欠部側にスライド移動させることで、第２嵌着部を水平縁部側の係合舌片に噛合嵌着できると共に、第１嵌着部の係合爪を扉の枢支角近傍の垂直縁部側に形成された係合舌片に嵌着し、且つ、同係合舌片を保持壁により上下から挟持することができ、極めて簡単な取付作業により迅速に取付を完了することができる。また、取付後は、第１嵌着部と第２嵌着部により扉側蝶番の両端部が扉に対して強固に固着される。
【００１２】
請求項３の発明は、中間蝶番を扉側蝶番に対して第２枢軸を介して枢着し、扉側ユニットを構成し、該扉側ユニットの一部を構成する扉側蝶番の第１嵌着部および第２嵌着部を介して扉に取着する請求項２に記載の家具類における扉の蝶番装置である。
【００１３】
上記発明によれば、蝶番装置の各部品を家具本体の筐体と扉とにそれぞれ挿着し、中間蝶番を組み込みながら組立てる従来構造に比較して、部品点数を減少し、極めて簡単な取付作業により蝶番装置を組み込むことを可能にできる。つまり、中間蝶番を予め組み込まれた扉側ユニットを扉に挿着できるように構成したことにより、従来構造では、ある程度の熟練が必要とされていた、蝶番部分の組立て作業を、極めて容易な作業に置き換えることができる。
【００１４】
請求項４の発明は、扉の枢支角部に開口された切欠部の縁部を形成する水平縁部は、隣接して設けられた係合舌片に近接する側ほど拡開される傾斜縁を形成した請求項３に記載の家具類における扉の蝶番装置である。
【００１５】
上記発明によれば、扉側ユニットの一部を構成する中間蝶番を上記傾斜縁に沿うように回動操作することにより、他への干渉を減少して扉側への挿着作業を、より円滑且つ簡単に行うことができる。
【００１６】
請求項５の発明は、扉側蝶番の第２枢軸を枢支する軸受け部には、該第２枢軸の中途部または先端側を挟持する対峙爪を一体に設けた請求項１から請求項４の何れかに記載の家具類における扉の蝶番装置である。
【００１７】
上記発明によれば、扉側蝶番に対する中間蝶番の取付作業が極めて容易なもとのとなり、特別の工具を一切必要とせずに、抜け出し防止の対策が講じられた、第２枢軸の取着を完了することができる。
【００１８】
請求項６の発明は、扉側蝶番の軸受け部の内壁に、先端側が縮径する段差部を形成し、また、該軸受け部に挿入される中間蝶番の第２枢軸の中途部または先端側にも先端側が縮径する段差部が形成され、所定の没入高さを保持して回転自在に支持する如く構成された請求項１から５の何れかに記載の家具類における扉の蝶番装置である。
【００１９】
上記発明によれば、第２枢軸の軸受け部への没入量が一定に確保され、ばね部材を不要に圧縮して、その復元動作を妨げることを防止して、正確な蝶番作動を確保することができるものである。
【００２０】
【発明の実施の形態】
以下、図面を参照して本発明の実施例につき説明する。
【００２１】
【実施例】
図１は、本発明に包含される蝶番装置の一実施例を示す分解斜視図であり、図２は、キャビネットの扉の枢支側の上下角部に取着される蝶番装置を示す分解斜視図、図３は、蝶番装置の挿着工程を示す平面図、図４は図３の正面図、図５は挿着を完了した蝶番装置の平面図、図６は図５の正面図である。
【００２２】
図中に示される蝶番装置１は、キャビネットの扉４の枢支側角部に取着される扉側ユニット１ａと、キャビネットの筐体開口縁部に取着される筐体側蝶番１ｂとを備えている。扉側ユニット１ａは、合成樹脂製の扉側蝶番２を備え、この扉側蝶番２に対して、合成樹脂製の中間蝶番３が回動自在に枢着されている。該扉側蝶番２は、横転されたＪ字状を成す如く形成された合成樹脂製のブロックからなり、一端部には、扉４の垂直縁部４ｂに嵌合される第１嵌着部５が形成され、さらに、他端部には、扉４の水平縁部４ｃに嵌合される第２嵌着部６が形成されている。
【００２３】
そして、中央部には上下方向に穿設された軸受け部７が設けられ、この軸受け部７に対して中間蝶番３の枢軸（第２枢軸）３ａが回転自在に挿入される。該中間蝶番３は全体が合成樹脂から構成され、枢軸３ａもまた合成樹脂により一体に形成されている。なお、中間蝶番３全体を金属から構成することや、枢軸３ａのみを金属製にしてインサート成形すること等により樹脂からなる中間蝶番３に金属製の枢軸３ａを結合した構成とすることも可能である。
【００２４】
中間蝶番３は、その枢軸３ａに対して、ばね部材８が環装され、ばね部材８の一端が、扉側蝶番２の上面に鉤状に突設された係合鉤２ａに係合され、また、他端が中間蝶番３の下面に係合されており、ばね部材８により、中間蝶番３に対して、該扉側蝶番２が枢軸３ａを中心に閉鎖方向に回動付勢されるように構成されている。
【００２５】
扉側蝶番２の一端側上部には、中間蝶番３の回動を規制する係合突片２ｂが突設されており、ばね部材８による弾性的押圧力により閉鎖方向に回動付勢される中間蝶番３の縁部に当接して回動を抑止するように構成されている。該係合突片２ｂは、また、中間蝶番３が扉側蝶番２に対して９０°回動された状態においても、中間蝶番３の他の縁部に当接して回動を規制する如く構成されている。従って、中間蝶番３は、扉側蝶番２に対して、閉鎖状態から開放状態にかけての約９０°の範囲でのみ回動可能に構成され、且つ、常にばね部材８により閉鎖方向に付勢されるように構成されている。
【００２６】
上記中間蝶番３の枢軸３ａは、回動支持の強度を確保するため、および、中間段差部３ｂを形成するために、その直径が比較的太く形成されており、金属にて製作した場合とほぼ同等の強度を確保すると共に、軸受け部７の内部に形成された図示しない段差部に係合して、所定の深さ以上に没入しないように構成されている。つまり、中間段差部３ｂを軸受け部７内の段差部に係合することにより、ばね部材８を圧縮して扉側蝶番２に没入することを阻止して、ばね部材８の付勢力を安定に確保することができるように構成されている。
【００２７】
また、軸受け部７の下端部には、該扉側蝶番２の側面に貫通状に開口された小窓内に成形された、一対の対峙爪９が設けられ、該対峙爪９が、中間蝶番３の枢軸３ａの先端に形成された、係合段部３ｃを挟み込み状に保持することにより、中間蝶番３が扉側蝶番２から不用意に抜け出さない状態に保持され、且つ、回転自在に枢支されている。なお、上記対峙爪９は、一対に限定されず、３つ以上が対峙する如く設けられるものや、扉側蝶番２とは別体に形成されて後付けにより取着されたもの等であってもよい。
【００２８】
扉側ユニット１ａは、図２中に示される如く、同一の扉４の上下の枢支側角部にそれぞれ挿着され、上下に挿着される蝶番装置１は、それぞれが上下対象的に設けられており、その基本的構成は、上下対象の構造の他は、上下ともに全く同一である。よって、本実施例では上部の蝶番装置１についてのみ説明する。
【００２９】
キャビネットの筐体開口縁部にねじ等により固着される金属製且つ板状の筐体側蝶番１ｂに設けられた垂直短軸状の第１枢軸１０は、扉側ユニット１ａの中間蝶番３の第２枢軸３ａから、所定寸法離れた位置に穿設された軸受け穴１１に回動自在に枢着されるようになっている。
【００３０】
キャビネットの扉４の枢支側角部には、扉側ユニット１ａを挿着するための切欠部４ａが形成され、さらに、扉４の縁部には垂直縁部４ｂおよび水平縁部４ｃが形成されている。垂直縁部４ｂは、扉４の表外面に略垂直に折曲され、扉４の厚みを形成している。その先端側が扉表壁裏面に略平行に折曲され補強リブ１２を形成し、さらに、先端部が扉表壁裏面に略垂直に内向きに折り込まれ折返しリブ１３が形成されている。
【００３１】
また、折返しリブ１３の上記切欠部４ａに近接する上端側には、上下に所定間隔をもって係合舌片１３ａが設けられている。該係合舌片１３ａは、扉側蝶番２の一端にブロック状を成して設けられた第１嵌着部５が嵌着するように構成されている。第１嵌着部５は、上記係合舌片１３ａに対応する部位に矩形状の凹欠部５ａが形成され、該係合舌片１３ａの先端に対応する部位には、合成樹脂素材であることを利用して基部以外の周囲が切離し状態に成形され弾性的に突没可能に形成された係合爪５ｂが設けられている。該係合舌片１３ａの上下縁部は凹欠部５ａの上下挟持壁に嵌合する。さらに、扉側蝶番２の背面２ｃは補強リブ１２に面一となるように形成されており、背面２ｃに対応する第１嵌着部５の背面部は、補強リブ１２の肉厚分の段差５ｃを形成している。
【００３２】
一方、水平縁部４ｃは、扉４の表外面に略垂直に折曲され、扉４の厚みを形成している。その先端側が扉表壁裏面に略平行に折曲され補強リブ１２を形成し、さらに、先端部が扉表壁裏面に略垂直に内向きに折り込まれ折返しリブ１３が形成されている。また、折返しリブ１３の上記切欠部４ａに近接する端側は、所定角度約４５°の角度をなして斜めに傾斜されている。該傾斜縁１４に近接する折返しリブ１３部分には、第２嵌着部６を挿入可能な挿入用切欠１５を形成して配置された係合舌片１３ｂが設けられている。第２嵌着部６は、上端面が水平縁部４ｃの下面に当接する如く挿入された状態にて、切欠部４ａ側にスライド移動することにより、該係合舌片１３ｂに噛合する噛合溝６ａが形成されている。さらに、噛合溝６ａの切欠部４ａ側は、上方に傾斜された拡開部６ｂが形成されており、扉側蝶番２な傾斜した状態であっても、噛合溝６ａを係合舌片１３ｂに係合させることができるように形成されている。また、第２嵌着部６の噛合溝６ａの上部に位置する側壁面は、切欠部４ａに近接する先端側が先細状に傾斜された、挿入縁部６ｃが形成されている。
【００３３】
上記扉側ユニット１ａを扉４に挿着する場合について図３および図４を参照して説明する。先ず、扉側ユニット１ａの第１嵌着部５側を下側に傾斜させ、且つ、第１嵌着部５が扉４から離れるように傾斜させた状態で、第２嵌着部６を挿入用切欠１５に挿入する。このとき、挿入縁部６ｃは補強リブ１２に略平行な状態である。噛合溝６ａの拡開部６ｂを係止舌片１３ｂに係合して、扉側ユニット１ａを僅かに切欠部４ａ側にスライドさせて、中間蝶番３を、上記傾斜縁部１４の傾斜角度に略平行になるように回動させ、中間蝶番３の一端側を切欠部４ａから外側に突出する状態として、第１嵌着部５側を上方に移動させ、扉側ユニット１ａを略水平な状態にする。
【００３４】
扉側ユニット１ａが水平な状態では、第１嵌着部５が垂直縁部４ｂの係合舌片１３ａに対応するので、扉側ユニット１ａをそのまま、スライド移動させ、係合爪５ｂを係合舌片１３ａに嵌着させる。
【００３５】
以上のような取着作業により、扉側ユニット１ａを図５および図６に示される状態に扉４に取着することができる。この取着完了状態において、扉ユニット１ａの第１嵌着部５の凹欠部５ａの上下挟持壁に係合舌片１３ａが係合して上下動を規制され、また、係合爪５ｂが突没して係合舌片１３ａを乗り越えて係合することにより、係合舌片１３ａに引き抜き不可能に係合される。一方、第２嵌着部６は、噛合溝６ａが係合舌片１３ｂにスライドして噛合され、上下同不可能に固定される。
【００３６】
以上の如くして完成された蝶番装置１は、扉４を開く際に、先ず始めに、第１枢軸１０を中心に開放（第１段階）され、キャビネットの筐体前面に対して、約９０°の角度に開放することができる。この状態から、さらに、扉４を開くことにより、第２枢軸３ａを中心に扉４が回動（第２段階）され、キャビネットの筐体前面に対して、約１８０°の角度にまで開放することができる。
【００３７】
なお、中間蝶番３は図５および図６に示される如く、閉位置および第１段階の開き状態においては、扉４の切欠部４ａに収容されキャビネットの前面に面一に取着され外側に突出しない構造となっている。
【００３８】
次に、図７および図８を参照して本発明の第２実施例につき説明する。
【００３９】
図７は、キャビネットの扉の上部に取り付けられた本発明に包含される蝶番装置の一実施例を示す分解斜視図であり、図８は、蝶番装置の組み立てを完了した状態を示す斜視図である。
【００４０】
図中に示される蝶番装置１は図示しないキャビネットの筐体にねじにより固定される金属製の筐体側蝶番１ｂを備え、この筐体側蝶番１ｂの扉の角側端に対応する部位には垂直下方に突出された第１枢軸１０を介して金属製の中間蝶番３が該第１枢軸１０の回りに回動自在に枢支されている。中間蝶番３の他端には該中間蝶番３に一体に形成され下方に延長された第２枢軸３ａが設けられている。
【００４１】
一方、扉４の枢着側の上角部には切欠部４ａが形成され、該切欠部４ａには、折り返された垂直および水平の縁部４ｂ，４ｃの内側壁に、両端部が接合する如く挿着された合成樹脂製の扉側蝶番２が設けられている。
【００４２】
垂直縁部４ｂは、さらに、扉４の表壁裏面に平行に折曲された補強リブ１２と、この補強リブ１２から、さらに折曲延長されて、該表壁裏面に略垂直状に形成された折返しリブ１３とを備えている。該折返しリブ１３は切欠部４ａに近接する部位が水平に切除され、且つ、扉４の表壁裏面と対峙する縁部は所定巾の隙間をもって形成され、上記扉側蝶番２の一端部には、該所定巾の隙間に嵌合状に挿入される挿着片部１６が設けられると共に、折返しリブ１３の上端部を乗り越えて、挿着され係合する楔状爪１７が一体に設けられている。
【００４３】
また、扉４の水平縁部４ｃの切欠部４ａに近接する部分には、舌片状に打ち抜かれ、一段没した状態で、先端部を該切欠部４ａとは反対側に延長され、且つ、水平縁部４ｃに略平行に形成された保持片１８が設けられている。また、水平縁部４ｃの縁部には、表壁裏面に平行に折曲された補強リブ１２が形成され、板厚方向に四角形状の係合小孔１９が穿設されている。そして、扉側蝶番２の他端側上面には、上記保持片１８が挿入可能な縦孔２０が穿設され、さらに、扉４の切欠部４ａが有る隅側にスライド移動されることで、保持片１８が係合する如く板状に形成された噛合部２０ａが形成されている。また、扉側蝶番２の他端側の上記係合小孔１９に対応する側面には、係合小孔１９に向けて突出された楔状爪２１が凸設されており、上記切欠部４ａが有る隅側にスライド移動された場合に、楔状爪２１が係合小孔１９に係合するように構成されている。
【００４４】
扉側蝶番２は、上記挿着片部１６、楔状爪１７，縦孔２０、噛合部２０ａおよびもう一つの楔状爪２１により、扉４の切欠部４ａに対応する如く固着されるように構成されており、その取着作業は、上記縦孔２０に保持片１８を挿入し、切欠部４ａ側にスライド移動させるという極めて簡単なものである。
【００４５】
扉側蝶番２の中途部は、上記切欠部４ａに対応する部分が扉４の上側の水平縁部４ｃよりも一段下位に位置される如く折曲され、該折曲部には、中間蝶番３の第２枢軸３ａが挿入される筒状の軸受け部７と、該軸受け部７上に一体に形成されて中間蝶番３を支持し、ばね部材８の上下方向の潰れを防止して、外周部に環装されたばね部材８の確実な作動を確保する台座部９は、全て扉側蝶番２に一体的に成形されてなるものである。
【００４６】
扉側蝶番２の上面の一側の折曲隅部に凹欠状に形成され、ばね部材８の一端が係合されるた凹部２ａが形成され、さらに、扉側蝶番２の上面の他側には上方に突出して中間蝶番３の回動範囲を約９０°の範囲に規制する如く干渉する係合突片２ｂが一体に形成されている。
【００４７】
そして、筐体側蝶番１ｂに枢着された中間蝶番３の第２枢軸３ａが、扉４に固着された扉側蝶番２の軸受け部７に枢着状態に挿入され、さらに、軸受け部７より露出された第２枢軸３ａの下端には、Ｅリング２２が取着され、抜け防止構造を成し、且つ、ばね部材８の他端が中間蝶番３の下面側に係合される。
【００４８】
以上の如くして完成された蝶番装置１は、扉４を開く際に、先ず始めに、第１枢軸１０を中心に開放（第１段階）され、キャビネットの筐体前面に対して、約９０°の角度に開放することができる。さらに、扉４を開くことにより、第２枢軸３ａを中心に扉４が回動（第２段階）され、キャビネットの筐体前面に対して、約１８０°の角度にまで開放することができる。
【００４９】
なお、中間蝶番３は閉位置および第１段階の開き状態においては、扉４の切欠部４ａに収容されキャビネットの前面に面一に取着され外側に突出しない構造となっている点については既に上記した第１実施例と同様である。
【００５０】
【発明の効果】
本発明によれば、蝶番装置を構成する部品を可能な限り合成樹脂化することにより、部品点数を減少し、組立て工数を削減すると共に、製品の軽量化を計り、錆び等の発生を防止し、且つ、きしみによる騒音の発生を抑え、より低価格化が可能な家具類における扉の蝶番装置を提供することができる。
【図面の簡単な説明】
【図１】本発明の第１実施例に係る蝶番装置の扉側ユニットの分解斜視図である。
【図２】扉の上下に設けられる蝶番装置の分解斜視図である。
【図３】扉側ユニットの扉への組み込み工程を示す平面図である。
【図４】図３の正面図である。
【図５】扉への組み込みを完了した扉側ユニットを示す平面図である。
【図６】図５の正面図である。
【図７】本発明の第２実施例に係る蝶番装置の分解斜視図である。
【図８】図７の蝶番装置の扉への組み込みが完了した状態を示す斜視図である。
【符号の説明】
１蝶番装置
１ａ扉側ユニット
１ｂ筐体側蝶番
２合成樹脂製の扉側蝶番
３中間蝶番
３ａ第２枢軸
３ｂ中間段差部
３ｃ係合段部
４キャビネットの扉
４ａ切欠部
４ｂ垂直縁部
４ｃ水平縁部
５扉側蝶番の第１嵌着部５
５ａ凹欠部
５ｂ係合爪
６扉側蝶番の第２嵌着部
６ａ噛合溝
６ｂ拡開部
６ｃ挿入縁部
７軸受け部
８ばね部材
９対峙爪
１０第１枢軸
１２補強リブ
１３折返しリブ
１３ａ係合舌片（垂直側）
１３ｂ係合舌片（水平側）
１４傾斜縁[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hinge device for a door that can be suitably used for furniture such as a locker, a library, and a cabinet, and more specifically, in furniture that can secure a large opening by opening and closing the door in two stages. It is related with improvement of the hinge device of a door.
[0002]
[Prior art]
As shown in Japanese Patent Application Laid-Open No. 6-240943 and Japanese Utility Model Publication No. 5-36939, a door hinge device provided in an office locker or storage room is provided with a connecting plate interposed therebetween. Is connected to the doorway of the main body, and an indirect portion is provided to open and close the door in two steps, so that the outer surface of the closed door is flush with the other front surface of another adjacent locker when the door is opened. There are some which are configured so as to be open to a state parallel to the front face of another adjacent rocker without interfering with the front face of the furniture or other furniture.
[0003]
The above furniture is mainly made of metal materials with excellent durability on the outer surface of the main body, doors, etc., and when incorporating hinges and handle parts at the time of manufacture, Is to be combined. It is difficult to reduce the price of metal parts, and there are many man-hours required for manufacturing such as welding and screw tightening, and it is inevitable that the finished furniture becomes a relatively expensive product. It was.
[0004]
In such office furniture, a synthetic resin cushioning part is interposed in a limited part such as a noise generating part of the hinge device, etc., and quietness at the time of opening and closing and opening / closing operation are performed. Consideration was given to facilitation.
[0005]
In recent years, there has been a growing demand for price reductions for office furniture. Even in lockers and storage cabinets, parts that do not necessarily need to be made of metal, such as door handles and unlocking levers, are synthesized. It is becoming resin, and weight reduction and cost reduction are being performed.
[0006]
[Problems to be solved by the invention]
The hinge device for the doors of furniture such as lockers and storages, in order to satisfy the required durability and operation performance, most parts are made of metal, and the connection structure between the main body and the door In addition, it uses a welded or screwed joint structure, etc., which increases the weight of the main body and increases the painting finish process of the welded part. There are drawbacks such as the occurrence of rust and noise due to squeaks, and the heavy use of expensive metal parts is one of the factors hindering cost reduction.
[0007]
Therefore, the object of the present invention is to reduce the number of parts and reduce the assembly man-hours by converting the hinge device, which is mostly made of metal in conventional furniture, to a synthetic resin as much as possible. An object of the present invention is to provide a door hinge device for furniture that can reduce the product weight, prevent the occurrence of rust and the like, suppress the generation of noise due to squeaking, and reduce the price.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 is provided with a housing-side hinge fixed in the vicinity of the corner of the housing opening edge of furniture, and a first pivot whose one end is perpendicular to the housing-side hinge. An intermediate hinge that is pivotally supported via a second hinge provided on the other end of the intermediate hinge, the door-side hinge being a second pivot relative to the intermediate hinge. The door-side hinge is made of synthetic resin and is attached to one end located on the pivot end side of the notch formed at the corner on the pivot side of the door. Is formed with a first fitting portion that is fitted to the vertical edge side extended to the back side of the door, and the other end extended to the center side of the door beyond the notch is directed upward. The furniture is characterized in that a second fitting part is formed which is bent and extended to be fitted on the horizontal edge side formed on the back side of the door. It is a hinge apparatus of the door that.
[0009]
According to the above invention, the door-side hinge can fit the first fitting portion to the vertical edge portion on the pivotal side of the door and simultaneously fit the second fitting portion to the horizontal edge portion of the door. This eliminates the need for special joint structures such as welding and screws that were previously required, and also allows assembly to be completed without the need for tools, etc., so that the installation work can be completed quickly with an extremely simple installation work. be able to. Further, by using a synthetic resin for the door-side hinge, it becomes possible to integrally form parts having complicated shapes, thereby reducing the number of parts and reducing the number of assembling steps. In addition, it is possible to reduce the weight of parts, reduce noise due to rusting and squeaking at the time of opening and closing, and realizing a reduction in price.
[0010]
The invention of claim 2 is provided with a housing-side hinge fixed in the vicinity of the corner of the housing opening edge of furniture, and is intermediately supported via a first pivot whose one end is perpendicular to the housing-side hinge. A hinge having a hinge and having a door-side hinge via a second pivot arranged on the other end of the intermediate hinge, and the door-side hinge is closed by a spring member attached to the second pivot with respect to the intermediate hinge The door-side hinge made of synthetic resin is arranged in a notch formed in the pivotal corner of the door, and is fitted on one end of the door on the vertical edge side. The first fitting portion is provided, and the other end is provided with a second fitting portion that is bent upward and is fitted to the horizontal edge side of the door. The fitting part is formed in a reinforcing rib extending from the vertical edge, and is press-fitted into an engaging tongue formed substantially parallel to the vertical edge and substantially perpendicular to the rear surface of the door front wall. The holding wall is provided with an engaging claw that is elastically projected and retracted to overcome the engaging tongue piece and is fitted so as not to be able to be pulled out, and sandwiching the engaging tongue piece above and below the engaging claw And the second fitting portion is formed in a reinforcing rib extending from the horizontal edge, and is inserted with a folded rib formed substantially parallel to the horizontal edge and substantially perpendicular to the rear surface of the door front wall. An engagement groove is formed which is inserted into the cut-out notch and is slidably moved to an engagement tongue piece formed in the same manner as the folded rib and disposed in the vicinity of the notch portion. In the furniture, the first meshing part is expanded vertically, and the side facing the reinforcing rib of the second fitting part is partly cut off at the notch part side. It is a door hinge device.
[0011]
According to the above invention, the door-side hinge is inserted from the second fitting portion into the insertion notch formed on the folding rib of the door, and the second fitting portion is in contact with the lower surface of the horizontal edge portion. By sliding and moving to the notch portion side of the door, the second fitting portion can be engaged with the engaging tongue on the horizontal edge side, and the engaging claw of the first fitting portion is in the vicinity of the pivot angle of the door It can be fitted to the engaging tongue formed on the vertical edge side of the lip and can be sandwiched from above and below by the holding wall, and the installation can be completed quickly by an extremely simple mounting operation. Can do. Moreover, after attachment, the both ends of the door side hinge are firmly fixed to the door by the first fitting portion and the second fitting portion.
[0012]
According to the invention of claim 3, the intermediate hinge is pivotally attached to the door-side hinge via the second pivot, constitutes the door-side unit, and the first fitting of the door-side hinge constituting a part of the door-side unit. The hinge device for a door in furniture according to claim 2, wherein the door is attached to the door via the attachment portion and the second fitting portion.
[0013]
According to the above invention, each part of the hinge device is inserted into the housing and the door of the furniture body, and the number of parts is reduced compared to the conventional structure that is assembled while incorporating the intermediate hinge. This makes it possible to incorporate a hinge device. In other words, by constructing the door-side unit with a pre-installed intermediate hinge so that it can be inserted into the door, the assembly of the hinge part, which required a certain level of skill in the conventional structure, is extremely easy. Can be replaced.
[0014]
According to a fourth aspect of the invention, the horizontal edge forming the edge of the notch opened at the pivotal corner of the door is inclined so as to expand toward the side closer to the adjacent engaging tongue. It is a hinge device of the door in the furniture of Claim 3 which formed the edge.
[0015]
According to the above invention, by rotating the intermediate hinge that constitutes a part of the door side unit along the inclined edge, it is possible to reduce the interference with others and to perform the insertion work to the door side more. It can be done smoothly and easily.
[0016]
According to a fifth aspect of the present invention, the bearing portion that pivotally supports the second pivot of the door-side hinge is integrally provided with an opposing claw that clamps the middle portion or the tip side of the second pivot. It is a hinge apparatus of the door in the furniture in any one of.
[0017]
According to the above-described invention, the attachment of the second pivot, which is a very easy source for attaching the intermediate hinge to the door-side hinge, and which has been provided with measures for preventing the removal without requiring any special tool. Can be completed.
[0018]
According to the invention of claim 6, a stepped portion having a reduced diameter on the tip side is formed on the inner wall of the bearing portion of the door side hinge, and the intermediate hinge portion inserted into the bearing portion has a middle portion or a tip side. The hinge device for a door in furniture according to any one of claims 1 to 5, wherein a stepped portion having a reduced diameter on the tip side is formed and is configured to be rotatably supported while maintaining a predetermined immersion height. .
[0019]
According to the above invention, the amount of immersion of the second pivot into the bearing portion is ensured to be constant, the spring member is unnecessarily compressed, and the restoring operation is prevented from being hindered to ensure an accurate hinge operation. It is something that can be done.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0021]
【Example】
FIG. 1 is an exploded perspective view showing an embodiment of a hinge device included in the present invention, and FIG. 2 is an exploded perspective view showing a hinge device attached to the upper and lower corners on the pivot side of a cabinet door. 3 is a plan view showing a process of inserting the hinge device, FIG. 4 is a front view of FIG. 3, FIG. 5 is a plan view of the hinge device after the insertion, and FIG. 6 is a front view of FIG. .
[0022]
A hinge device 1 shown in the figure includes a door-side unit 1a attached to a pivot-side corner of a cabinet door 4, and a housing-side hinge 1b attached to a cabinet opening edge of the cabinet. ing. The door side unit 1a includes a synthetic resin door side hinge 2, and a synthetic resin intermediate hinge 3 is pivotally attached to the door side hinge 2. The door-side hinge 2 is made of a synthetic resin block formed so as to form a rolled-up J-shape, and has a first fitting portion 5 fitted to a vertical edge portion 4b of the door 4 at one end portion. Further, a second fitting portion 6 fitted to the horizontal edge portion 4c of the door 4 is formed at the other end portion.
[0023]
A bearing portion 7 drilled in the vertical direction is provided at the center portion, and a pivot (second pivot) 3a of the intermediate hinge 3 is rotatably inserted into the bearing portion 7. The intermediate hinge 3 is entirely made of synthetic resin, and the pivot 3a is also integrally formed of synthetic resin. The entire intermediate hinge 3 can be made of metal, or the metal hinge 3a can be joined to the intermediate hinge 3 made of resin by insert molding with only the pivot 3a made of metal. is there.
[0024]
The intermediate hinge 3 is provided with a spring member 8 around the pivot 3a, and one end of the spring member 8 is engaged with an engagement rod 2a projecting in a hook shape on the upper surface of the door-side hinge 2. The other end is engaged with the lower surface of the intermediate hinge 3 so that the door-side hinge 2 is urged by the spring member 8 in the closing direction about the pivot 3a. It is configured.
[0025]
An engagement protrusion 2b that restricts the rotation of the intermediate hinge 3 protrudes from the upper end of the door-side hinge 2 and is urged to rotate in the closing direction by the elastic pressing force of the spring member 8. It is comprised so that rotation may be suppressed by contact | abutting to the edge part of the intermediate hinge 3. FIG. The engaging protrusion 2b is also configured to abut against the other edge of the intermediate hinge 3 and restrict the rotation even when the intermediate hinge 3 is rotated 90 ° relative to the door-side hinge 2. Has been. Accordingly, the intermediate hinge 3 is configured to be rotatable only in a range of about 90 ° from the closed state to the open state with respect to the door side hinge 2 and is always urged in the closing direction by the spring member 8. It is configured as follows.
[0026]
The pivot 3a of the intermediate hinge 3 has a relatively large diameter in order to ensure the strength of the rotation support and to form the intermediate step portion 3b. In addition to ensuring the same strength, it is configured to engage with a step portion (not shown) formed inside the bearing portion 7 so as not to be immersed more than a predetermined depth. That is, by engaging the intermediate stepped portion 3b with the stepped portion in the bearing portion 7, the spring member 8 is prevented from being compressed and immersed in the door side hinge 2, and the urging force of the spring member 8 is stabilized. It is configured so that it can be secured.
[0027]
Further, at the lower end of the bearing portion 7, a pair of counter claws 9 formed in a small window opened in a penetrating manner on the side surface of the door side hinge 2 is provided. By holding the engagement step portion 3c formed at the tip of the pivot shaft 3a in a sandwiched manner, the intermediate hinge 3 is held in a state where it is not inadvertently pulled out from the door-side hinge 2, and is pivotably rotatable. It is supported. In addition, the said opposing nail | claw 9 is not limited to a pair, Even if it is provided so that three or more may oppose, or it was formed separately from the door side hinge 2, and was attached by retrofitting etc. Good.
[0028]
As shown in FIG. 2, the door-side unit 1a is inserted into the upper and lower pivot-side corners of the same door 4, and the hinge device 1 to be inserted up and down is provided in a vertical manner. The basic configuration is exactly the same for the top and bottom except for the structure of the top and bottom. Therefore, in this embodiment, only the upper hinge device 1 will be described.
[0029]
A first short axis 10 of a short axis provided on a metal and plate-like housing side hinge 1b fixed to a housing opening edge of the cabinet with a screw or the like is a second pivot of the intermediate hinge 3 of the door side unit 1a. The pivot shaft 3a is pivotally attached to a bearing hole 11 drilled at a position away from a predetermined dimension.
[0030]
A notch 4a for inserting the door-side unit 1a is formed at the corner on the pivot side of the cabinet door 4, and a vertical edge 4b and a horizontal edge 4c are formed at the edge of the door 4. Has been. The vertical edge 4 b is bent substantially perpendicularly to the outer surface of the door 4 to form the thickness of the door 4. The front end side is bent substantially in parallel to the door front wall back surface to form a reinforcing rib 12, and the front end portion is folded inward substantially perpendicularly to the door front wall back surface to form a folded rib 13.
[0031]
Further, an engaging tongue piece 13a is provided on the upper end side of the folded rib 13 close to the notch 4a with a predetermined interval in the vertical direction. The engaging tongue piece 13a is configured such that a first fitting portion 5 provided in a block shape on one end of the door-side hinge 2 is fitted. The first fitting portion 5 is formed with a rectangular recess 5a at a portion corresponding to the engaging tongue piece 13a, and a portion corresponding to the tip of the engaging tongue piece 13a is made of a synthetic resin material. Utilizing this fact, there is provided an engaging claw 5b which is formed in a state where the periphery other than the base portion is cut off and can be elastically projected and retracted. The upper and lower edge portions of the engaging tongue piece 13a are fitted to the upper and lower clamping walls of the recessed portion 5a. Further, the back surface 2c of the door-side hinge 2 is formed so as to be flush with the reinforcing rib 12, and the back surface portion of the first fitting portion 5 corresponding to the back surface 2c is a step corresponding to the thickness of the reinforcing rib 12. 5c is formed.
[0032]
On the other hand, the horizontal edge portion 4 c is bent substantially perpendicularly to the outer surface of the door 4 to form the thickness of the door 4. The front end side is bent substantially in parallel to the door front wall back surface to form a reinforcing rib 12, and the front end portion is folded inward substantially perpendicularly to the door front wall back surface to form a folded rib 13. Further, the end side of the folded rib 13 adjacent to the notch 4a is inclined obliquely at an angle of about 45 °. An engagement tongue piece 13b is provided in the folded rib 13 portion adjacent to the inclined edge 14, and is formed by forming an insertion notch 15 into which the second fitting portion 6 can be inserted. The second fitting portion 6 has a meshing groove that meshes with the engaging tongue piece 13b by sliding to the notch portion 4a side in a state where the upper end surface is inserted so as to contact the lower surface of the horizontal edge portion 4c. 6a is formed. Furthermore, the notch 4a side of the engaging groove 6a is formed with an expanded portion 6b that is inclined upward, so that the engaging groove 6a can be used as the engaging tongue 13b even when the door-side hinge 2 is inclined. It is formed so that it can be engaged. Moreover, the side wall surface located in the upper part of the engagement groove | channel 6a of the 2nd fitting part 6 is formed with the insertion edge part 6c in which the front end side close | similar to the notch part 4a was inclined in the taper shape.
[0033]
The case where the said door side unit 1a is inserted in the door 4 is demonstrated with reference to FIG. 3 and FIG. First, the second fitting portion 6 is inserted in a state where the first fitting portion 5 side of the door side unit 1 a is inclined downward and the first fitting portion 5 is inclined so as to be separated from the door 4. Insert into the cutout 15. At this time, the insertion edge 6 c is substantially parallel to the reinforcing rib 12. Engage the widened portion 6b of the engaging groove 6a with the locking tongue 13b, slide the door side unit 1a slightly toward the notch 4a, and set the intermediate hinge 3 at the inclination angle of the inclined edge portion 14. The first hinge 5 is moved upward so that the one end side of the intermediate hinge 3 protrudes outward from the notch 4a, and the door side unit 1a is substantially horizontal. To.
[0034]
When the door-side unit 1a is horizontal, the first fitting portion 5 corresponds to the engaging tongue 13a of the vertical edge 4b, so that the door-side unit 1a is slid and engaged with the engaging claw 5b. The tongue piece 13a is fitted.
[0035]
Through the above-described attaching operation, the door-side unit 1a can be attached to the door 4 in the state shown in FIGS. In this attachment completion state, the engagement tongue piece 13a is engaged with the upper and lower clamping walls of the recessed portion 5a of the first fitting portion 5 of the door unit 1a to restrict the vertical movement, and the engagement claw 5b is By projecting and getting over the engagement tongue 13a, the engagement tongue 13a is engaged so as not to be pulled out. On the other hand, the second fitting portion 6 is fixed so that the engagement groove 6a slides and engages with the engagement tongue 13b and cannot be vertically moved.
[0036]
The hinge device 1 completed as described above is first opened (first stage) around the first pivot 10 when the door 4 is opened, and is about 90 with respect to the front surface of the cabinet housing. Can be opened at an angle of °. From this state, when the door 4 is further opened, the door 4 is rotated around the second pivot 3a (second stage) and opened to an angle of about 180 ° with respect to the front surface of the cabinet housing. be able to.
[0037]
As shown in FIGS. 5 and 6, the intermediate hinge 3 is accommodated in the notch 4a of the door 4 in the closed position and in the first-stage open state, and is attached flush with the front surface of the cabinet and protrudes outward. It has a structure that does not.
[0038]
Next, a second embodiment of the present invention will be described with reference to FIGS.
[0039]
FIG. 7 is an exploded perspective view showing an embodiment of a hinge device included in the present invention attached to an upper part of a cabinet door, and FIG. 8 is a perspective view showing a state in which the assembly of the hinge device is completed. is there.
[0040]
The hinge device 1 shown in the figure includes a metal casing side hinge 1b fixed to a casing of a cabinet (not shown) with a screw, and a vertical lower portion is provided at a portion corresponding to the corner end of the door of the casing side hinge 1b. An intermediate hinge 3 made of metal is pivotally supported around the first pivot 10 through a first pivot 10 that protrudes from the first pivot 10. The other end of the intermediate hinge 3 is provided with a second pivot 3a formed integrally with the intermediate hinge 3 and extending downward.
[0041]
On the other hand, a notch 4a is formed at the upper corner of the door 4 on the pivot side, and both ends are joined to the inner walls of the folded vertical and horizontal edges 4b and 4c. A synthetic resin door-side hinge 2 is provided.
[0042]
The vertical edge part 4b is further bent and extended from the reinforcing rib 12 in parallel to the rear surface of the door 4 and is formed in a substantially vertical shape on the rear surface of the front wall. And folded ribs 13. The folded rib 13 is cut horizontally at a portion close to the notch 4a, and the edge facing the back surface of the front wall of the door 4 is formed with a gap of a predetermined width. An insertion piece 16 is provided in the gap of the predetermined width so as to be fitted, and a wedge-like claw 17 that is inserted and engaged over the upper end of the turn-up rib 13 is integrally provided. .
[0043]
Further, the portion of the door 4 adjacent to the notch 4a of the horizontal edge 4c is punched out in a tongue-like shape, and the tip is extended to the opposite side to the notch 4a in a state of being stepped down, and A holding piece 18 formed substantially parallel to the horizontal edge 4c is provided. In addition, reinforcing ribs 12 that are bent in parallel with the rear surface of the front wall are formed at the edge of the horizontal edge 4c, and a rectangular engagement small hole 19 is formed in the plate thickness direction. And the vertical hole 20 in which the said holding piece 18 can be inserted is drilled in the upper surface of the other end side of the door side hinge 2, and further, it is slid and moved to the corner side where the notch portion 4a of the door 4 is provided. A meshing portion 20a formed in a plate shape so as to engage the holding piece 18 is formed. Further, a wedge-shaped claw 21 protruding toward the engagement small hole 19 is projected on the side surface corresponding to the engagement small hole 19 on the other end side of the door side hinge 2, and the notch portion 4 a is formed. The wedge-shaped claw 21 is configured to engage with the engagement small hole 19 when being slid to a certain corner side.
[0044]
The door-side hinge 2 is configured to be fixed to the notch portion 4a of the door 4 by the insertion piece portion 16, the wedge-shaped claw 17, the vertical hole 20, the meshing portion 20a, and another wedge-shaped claw 21. The attaching operation is very simple, in which the holding piece 18 is inserted into the vertical hole 20 and is slid to the notch 4a side.
[0045]
The middle part of the door-side hinge 2 is bent so that a portion corresponding to the notch 4a is positioned one step lower than the horizontal edge 4c on the upper side of the door 4, and the intermediate hinge 3 A cylindrical bearing portion 7 into which the second pivot shaft 3a is inserted, and an intermediate hinge 3 that is integrally formed on the bearing portion 7 and supports the intermediate hinge 3 to prevent the spring member 8 from being crushed in the vertical direction. All of the pedestal portions 9 that ensure the reliable operation of the spring member 8 mounted on the door are formed integrally with the door-side hinge 2.
[0046]
A recess 2a is formed in a bent corner portion on one side of the upper surface of the door-side hinge 2, and is engaged with one end of the spring member 8, and the other side of the upper surface of the door-side hinge 2 is further formed. Are integrally formed with an engaging protrusion 2b that protrudes upward and interferes so as to restrict the rotation range of the intermediate hinge 3 to a range of about 90 °.
[0047]
Then, the second pivot 3a of the intermediate hinge 3 pivotally attached to the housing side hinge 1b is inserted into the bearing portion 7 of the door side hinge 2 fixed to the door 4 in a pivoted state, and further exposed from the bearing portion 7. An E-ring 22 is attached to the lower end of the second pivot shaft 3a so as to form a removal prevention structure, and the other end of the spring member 8 is engaged with the lower surface side of the intermediate hinge 3.
[0048]
The hinge device 1 completed as described above is first opened (first stage) around the first pivot 10 when the door 4 is opened, and is about 90 with respect to the front surface of the cabinet housing. Can be opened at an angle of °. Furthermore, by opening the door 4, the door 4 is rotated (second stage) around the second pivot 3 a and can be opened to an angle of about 180 ° with respect to the front surface of the cabinet housing.
[0049]
The intermediate hinge 3 is already in the closed position and in the open state of the first stage. The intermediate hinge 3 is already accommodated in the notch 4a of the door 4 and is flush with the front surface of the cabinet and does not protrude outward. This is the same as the first embodiment described above.
[0050]
【The invention's effect】
According to the present invention, the parts constituting the hinge device are made of synthetic resin as much as possible, thereby reducing the number of parts, reducing the number of assembling steps, reducing the weight of the product, and preventing the occurrence of rust and the like. In addition, it is possible to provide a door hinge device for furniture that can suppress the generation of noise due to squeaking and can be further reduced in price.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a door side unit of a hinge device according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of a hinge device provided above and below the door.
FIG. 3 is a plan view showing a process of assembling the door unit into the door.
4 is a front view of FIG. 3;
FIG. 5 is a plan view showing a door-side unit that has been assembled into the door.
6 is a front view of FIG. 5. FIG.
FIG. 7 is an exploded perspective view of a hinge device according to a second embodiment of the present invention.
8 is a perspective view showing a state in which the hinge device of FIG. 7 has been assembled into the door. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hinge apparatus 1a Door side unit 1b Case side hinge 2 Synthetic resin door side hinge 3 Middle hinge 3a 2nd pivot 3b Middle step part 3c Engagement step part 4 Cabinet door 4a Notch part 4b Vertical edge part 4c Horizontal edge part 5 The first fitting part 5 of the door side hinge
5a Recessed part 5b Engaging claw 6 Second fitting part 6a of door side hinge 6a Engaging groove 6b Expanding part 6c Insertion edge part 7 Bearing part 8 Spring member 9 Opposite claw 10 First pivot 12 Reinforcement rib 13 Folding rib 13a Engagement Joint tongue piece (vertical side)
13b Engagement tongue (horizontal side)
14 Inclined edge

Claims

A housing-side hinge fixed to the housing of furniture, an intermediate hinge whose one end is pivotally supported by the housing-side hinge via the first pivot, and a biasing force in the closing direction toward the other end of the intermediate hinge In a door hinge device comprising a door-side hinge pivotally supported via a second pivot provided with a spring member,
The door-side hinge is made of synthetic resin, and has one end fitted to one end of the door on the vertical edge side on the back side of the door, and the other end is bent and extended upward. A second fitting part fitted on the horizontal edge side formed on the back side;
The second fitting part is fitted to the horizontal edge part of the door, and the first fitting part is fitted to the vertical edge part so that the attachment of the door-side hinge to the door can be completed. The hinge device of the door in the featured furniture.

A housing-side hinge fixed to the housing of furniture, an intermediate hinge whose one end is pivotally supported by the housing-side hinge via the first pivot, and a biasing force in the closing direction toward the other end of the intermediate hinge In a door hinge device comprising a door-side hinge pivotally supported via a second pivot provided with a spring member,
It is arranged corresponding to the notch formed in the pivotal corner of the door, and has a first fitting part fitted to the vertical edge side of the door at one end and directed upward at the other end. A door-side hinge provided with a second fitting portion that is bent and extended and fitted to the horizontal edge side of the door,
The first fitting portion extends from the reinforcing rib extending in parallel to the back surface of the door front wall from the vertical edge of the door so as to form a substantially L-shaped flat cross section so as to be perpendicular to the back surface of the door front wall. An engaging claw that is elastically protruded and fitted over the engaging tongue piece, and an upper and lower holding wall that sandwiches the engaging tongue piece above and below the engaging claw,
The second fitting portion has a substantially L-shaped side cross section extending vertically from the edge of the horizontal edge portion of the door in parallel to the rear surface of the door, and extending vertically to the rear surface of the front wall. It is inserted into the insertion notch of the folded rib that is bent and extended, and is placed close to the notch part side of the notch for insertion, and slides to the engaging tongue formed on the same side cross section as the folded rib. And a part of the notch part side of the engaging groove is expanded in the vertical direction, and a part of the side part of the side wall facing the reinforcing rib of the second fitting part is notched. A door hinge device for furniture, characterized by being cut obliquely.

A door-side unit is constructed by attaching the intermediate hinge to the door-side hinge, and the second fitting part of the door-side hinge that constitutes a part of the door-side unit is inserted into the insertion notch to widen the engagement groove. The slide part is moved so as to be engaged with the engaging tongue on the horizontal edge side from the opening, and the first fitting part is fitted on the engaging tongue piece on the vertical edge side, so that the door is attached to the door. The door hinge device for furniture according to claim 2, wherein the hinge device is configured to be completed.

An inclined edge is formed on the horizontal edge corresponding to the notch formed in the pivotal corner of the door so that the side close to the engaging tongue is widened, and the intermediate hinge of the door side unit being attached 4. The hinge device for a door in furniture according to claim 3, wherein the door is rotated along the inclined edge to facilitate attachment to the door. 5.

The bearing portion provided on the door-side hinge and pivotally supporting the second pivot of the intermediate hinge is provided with an opposing claw that can rotatably and elastically hold the middle portion or the tip side of the second pivot. The hinge device of the door in the furniture in any one of Claim 1 to 4 characterized by these.

A bearing step that forms a stepped portion with a reduced diameter on the middle of the second pivot provided on the intermediate hinge, and that receives the stepped portion of the second pivot on the inner wall of the bearing portion of the door-side hinge. The door hinge device for furniture according to any one of claims 1 to 5, wherein a portion is formed and the second pivot is held in a predetermined protruding state.