JP4087724B2

JP4087724B2 - Pivot hinge

Info

Publication number: JP4087724B2
Application number: JP2003059502A
Authority: JP
Inventors: 一男久力
Original assignee: Kuriki Manufacture Co Ltd
Current assignee: Kuriki Manufacture Co Ltd
Priority date: 2003-03-06
Filing date: 2003-03-06
Publication date: 2008-05-21
Anticipated expiration: 2023-03-06
Also published as: JP2004270197A

Description

【０００１】
【発明の属する技術分野】
本発明は、間口や仕切部において、枢着軸を扉枠体前方に持ち出した位置で支持して大きな開度で開閉可能に扉を扉枠に取り付ける、所謂ピボット蝶番に関する。
【０００２】
【従来の技術】
間口や仕切部において大きな開度で扉を開閉させる目的で、扉枠に扉を軸着・支持するピボット蝶番が従来から多用されている。殊に、扉を閉状態から１８０度まで開いた状態を可能とするため、軸部材と受け穴部材とが係合した蝶番軸位置が扉の前方に持ち出されたタイプのものが多用されている。
【０００３】
このようなピボット蝶番は、扉の取り付け時または取り付け後において扉位置の調整を行う必要が生じた場合に、扉枠に扉を取り付けた状態で扉の位置調整を行うのが容易ではなかった。例えば、扉枠に対するズレ・傾斜等は扉を閉めた状態でないとこれを把握することができない。しかし、位置調整手段は蝶番に付帯した取付板のネジ止めに設けられているのが通常で、扉を閉めた状態においてこれが隠れてしまうことから、扉のズレ・傾斜を目視しながら調整を実施することは極めて困難である。
【０００４】
一方、近年アルミ製扉が普及しているが、これを取り付ける場合においては扉枠の蝶番金具が装着された扉枠が現場で先に取り付けられ、後日の仕上げ作業において扉の蝶番金具が装着された扉を搬入して扉枠に取り付けることが多い。この場合、工場では扉枠と扉との軸着状態における位置関係が合致していても、現場で扉枠を取り付ける際に微妙な歪みが生じ、後日の扉取り付け作業において、扉と扉枠との位置関係が合致しないことがある。通常、仕上げ作業は最小限の人数で行うことが多いが、現場で重量のある扉を支えて調整を加えながらこれを取り付けるのは容易ではない。また、上述の扉位置調整は、取り付け時ばかりでなく、取り付け後の使用によりズレ・狂いが生じた場合も必要となるが、重い扉を支える蝶番の調整を一人で行うのは非常に困難なものである。
【０００５】
これに対し、特開２００２―２４２５１４号公報には、突出方向に付勢されたピボットを備えて扉に装着する軸金具（扉金具）と、扉枠に装着する受け金具（扉枠金具）とからなるピボット蝶番において、左右方向に位置調整可能な差し込みブロックが担持されたケーシングを軸金具の基部に有し、これを扉に埋め込むことにより調節ネジで扉の左右方向の位置調整を可能とするとともに、下側軸金具のピボットの基端周囲に設けたナット部材を回転させることにより、扉の上下位置の調整をも行えるようにしたピボット蝶番が提案されている。
【０００６】
このピボット蝶番は、扉位置を３次元方向に調整できるばかりか、扉の閉状態においても上下位置の調整を可能として、扉の位置調整作業を比較的容易としたものである。しかし、このピボット蝶番においても、扉の左右方向の調整を扉の閉状態で行うことができないとともに、高さ調整もピボット基部のナット部材をレンチで回転させて行う必要があって、調整作業に手間がかかる。さらに、軸金具を扉に装着するには、差し込みブロックを担持したケーシングを扉に埋め込む作業が必要となり、施工手順が多く労力を要するものである。特に、近年普及しているアルミ製扉に適用する場合、専用に設計されたアルミ扉にしか適用できないという問題もある。
【０００７】
一方、特開平９−２０９６４１号公報において、ピボット蝶番の軸位置を扉の閉状態においても３次元方向に調整可能として、現場で容易に扉位置調整を行えるようにした技術が提案されている。この技術は、下側軸金具に取り付ける軸部材において、２つの調整ネジにより枢着軸を水平面上で２方向（ｘ，ｙ方向）に移動させることができるとともに、下側受け金具の受け穴部材に設けた調整ネジにより上下方向（ｚ方向）にも調整できるようにして、扉取り付け後でも扉位置の調整を容易に行えるようにしたものである。
【０００８】
しかしながら、扉の重量を支える軸部材には堅牢さが要求されるとともに、扉を扉枠に堅固に支持して軸位置が揺動しないことが要求されるところ、このピボット蝶番における軸部の枢着軸は２つの調整ネジにより互いに略直角方向から各々リングを介して支持されて、水平位置を調整されるようになっている。したがって、各調整ネジを軸部枠体に揺動可能に取り付ける必要があって軸位置の固定力が弱いため、軸位置が揺動して扉取り付け位置の狂いが生じやすいという問題がある。また、このピボット蝶番は多数の微少部品により複雑に構成されているため、製造コストも高くなるとともに、堅牢さに欠けて故障・破損しやすくメンテナンスに手間を要するという問題もある。
【０００９】
【発明が解決しようとする課題】
本発明は、上記のような問題点を解決しようとするものであり、ピボット蝶番において、扉の位置調整作業を容易に実施できるようにするとともに、その構成をシンプルかつ堅牢にして、低コストかつメンテナンス容易にすることを課題とするものである。
【００１０】
【課題を解決するための手段】
そこで、本発明は、上向きのピボット軸が立設された軸部材を有し扉の上側に取り付けられる上側軸金具と前記上側軸金具のピボット軸が嵌挿する受け穴を有し扉枠体の上側に配置される上側受け金具とが前記扉枠体前方の持ち出し位置において互いに軸着してなる上側蝶番、および上向きの枢着軸が立設され扉枠体の下側に配置される下側軸金具と前記下側軸金具の枢着軸が嵌挿する受け穴が形成された受け穴部材を有し扉の下側に取り付けられる下側受け金具とが前記扉枠体前方の持ち出し位置において互いに軸着してなる下側蝶番、からなるピボット蝶番において、前記上側蝶番の軸部材および前記下側蝶番の受け穴部材がそれぞれ扉面に沿う左右調整ネジにより左右方向に調節可能に配置されており、前記扉の閉状態において扉取り付け位置が左右方向に調整可能とされ、前記上側蝶番の軸部材および前記下側蝶番の受け穴部材がそれぞれ扉面に沿う調整ネジ孔を側面に備えここに螺装された左右調整ネジにより左右方向に調節可能に配置されており、前記扉の閉状態において扉取り付け位置を左右方向に調整可能とされ、前記下側受け金具は、内周にネジ溝が刻設された受け穴が前記受け穴部材の下面から上面に貫通し、当該受け穴に螺装された上下調整ネジを回転させることにより当該上下調整ネジの下面である頂壁が上下に移動可能とされ、前記下側受け金具の前記受け穴部材は、基端側に前記調整ネジ孔が設けられ、先端側に前記受け穴が設けられ、前記上側軸金具の前記軸部材は、基端側に前記調整ネジ孔が設けられ、先端側に前記ピボット軸が上下に挿通される貫通孔が設けられていることを特徴とするピボット蝶番とした。
【００１１】
これにより、前記扉枠上側および下側の前方に持ち出された両蝶番の左右調整ネジを回転させるだけで扉の左右位置の調整をおこなえるとともに扉の閉状態で扉位置のズレを目視しながら調整できる。加えて、作業者が重い扉を支える必要がなくなったため、調整作業が極めて容易となる。殊に、下側受け金具において受け穴部材を備え、これを左右に移動可能とするとともに、下側軸金具の枢着軸を固定して扉枠体側に装着したことにより、大きな重量と力がかかる下側軸金具の構成を単純かつ堅牢な構造にすることができる。したがって、軸位置の狂いや破損が少なくなるとともに製作コストが低廉となり、修理などのメンテナンスの手間も少なくなる。尚、本発明において扉枠体とは、取り付ける扉に対応して専用に制作された枠体のみならず、扉設置位置における間口の構成体（壁・床など）も含むものとする。加えて、上下２箇所で左右位置を調整する際に、上下の移動幅を互いに異なるようにすれば、扉の左右傾きを調整できることはいうまでもない。
【００１２】
また、上記発明において前記下側受け金具を、内周にネジ溝が刻設された受け穴が前記受け穴部材の下面から上面に貫通するようにして、当該受け穴に螺装された上下調整ネジを回転させることにより当該上下調整ネジの下面である頂壁が上下に移動可能とすれば、上下調整ネジを上方向からドライバで回転させるだけで、軸部材の枢着軸が挿入された下側受け金具の高さを、上下に調整することができるため、扉閉状態でも左右方向に加えて上下方向の扉位置調整作業も容易に実施することができる。
【００１３】
さらに、上記各発明において前記上下の蝶番における左右調整ネジを、それぞれ前記軸部材または前記受け穴部材を各々左右に貫通する調整ネジ孔に噛合して各金具内で支持するものとすれば、左右位置調整機構の構成がより堅牢となって、前記軸部材または前記受け穴部材における係合がさらに堅固となる。そして、その調整作業はドライバでネジを回転させるだけの容易なものとなる。
【００１４】
さらにまた、上記各発明において、前記上側受け金具および前記下側軸金具にそれぞれ取付板を設け、前記扉枠体に対する前記扉が閉状態における前面位置を表示する目印または端線を前記取付板にそれぞれ設ければ、前記目印または端線位置が前記扉枠体における閉状態の前記扉の前面位置を示すことになるため、斯かる扉の前面位置を扉の装着時に把握できる。したがって、扉枠体における精密な扉前面位置を予め決定して扉を取り付けることができるようになる。また、このことにより取り付け後の扉の前後位置の調整も最小限で済むようになる。
【００１５】
加えて、前記扉の前面位置が扉の装着時に把握できる発明において、前記上側受け金具と前記下側軸金具の取付板に、孔が扉前後方向に拡大された複数のネジ孔をそれぞれ設け、扉の前後位置の調整を可能とすれば、ネジを緩めた状態において拡大されたネジ孔の範囲で取付板を前後に移動させることができるため、扉前後方向についても扉閉状態で位置調整を行えるようになる。尚、上下２箇所における前後調整幅を互いに異なるように移動させれば、扉の前後傾斜も調整することができることはいうまでもない。
【００１６】
【発明の実施の形態】
次に、本発明の実施の形態について、図面を用いながら以下に詳細に説明する。
尚、本発明においては、上下の蝶番が持ち出される方向、即ち、扉が大きく拡開する方向を扉前方としている。
【００１７】
図１および図２は、本発明の実施の形態を示すものであり、図１に示すように下側受け金具１Ａは、扉４０の下側において本体１ａが扉４０の前方に持ち出された状態で取り付けられ、下側軸金具２Ａは扉枠体５０の下側（床面）において枢着軸２１ａが垂直に固定された軸部材２２ｂを前方に持ち出された状態で取り付けられる。そして、両金具が係合して下側蝶番を形成し、扉４０および扉枠体５０の下側前方に蝶番軸が持ち出された状態で扉４０を扉枠体５０に支持・軸着する。
【００１８】
一方、上側軸金具２Ｂは、図２に示すように扉４０の上側において本体２ａが扉４０の前方に持ち出された状態で取り付けられ、上側受け金具１Ｂは扉枠体５０の上側（鴨居側）において、受け穴部材１１ｂが前方に持ち出された状態で取り付けられる。そして、両金具が係合して上側蝶番を形成し、扉４０および扉枠体５０の上側前方に蝶番軸が持ち出された状態で扉４０を扉枠体５０に支持・軸着する。そして、この形状の異なる４つの金具からなる上下の蝶番により、本実施の形態であるピボット蝶番１が構成される。
【００１９】
先ず、扉４０の下端側に装着する下側受け金具１Ａおよび扉枠体５０の下側に装着する下側軸金具２Ａについて、図１及び図３を用いて詳細に説明する。
下側受け金具１Ａは、前述したように取付板１２ａにより扉４０の下側前方に本体１ａが持ち出された状態で支持・固定される（図１）が、取付板１２ａは一部が本体１ａの基端側下辺部分に付設された平板からなり、ネジ孔１３ａ，１３ａを備えてネジ３０，３０により扉４０の下端面に装着される。
【００２０】
図３の（Ａ）は下側受け金具１Ａの横断面図を示し、図３の（Ｂ）は図１のＸ−Ｘ線に沿う縦断面図を示すものである。下側受け金具１Ａの本体１ａは、平面視で基端側がほぼ方形で先端側が円形であって、底面のない箱形の部材である。また、内部には受け穴部材１１ａを備えているとともに上面にネジ窓１６を備え、左側面には左右調整ネジ１４が頭部１４ａを露出して配置される凹部１７を備えている。尚、左右調整ネジ１４は先端が本体１ａの右側面まで貫通しているが、その先端部１４ｂは、挿通する孔の径より大きく拡大され左右調整ネジ１４が本体１ａから抜けないようになっている。
【００２１】
受け穴部材１１ａの形状は、本体１ａの外形より小さくこれに近似しており、本体１ａ内部において所定幅で左右に移動できるようになっている。また、受け穴部材１１ａは、左右調整ネジ１４が噛合するネジ山を備えた調整ネジ孔１１ｃが基端側に設けられ、左右調整ネジ１４の回転により左右にスライドさせられるようになっている。また、受け穴部材１１ａはその先端側において受け穴１８が上下に貫通して設けられており、受け穴１８の上部を上下調整ネジ１５が塞ぐとともに、これが受け穴１８内壁のネジ山と噛合して上下に移動できるようになっている。即ち、上下調整ネジ１５の下面が受け穴１８の頂壁をなすとともに、後述する軸２１ａの先端がこれに当接し、これを回転・移動させることで扉４０の上下位置の調整がおこなわれる。
【００２２】
一方、下側軸金具２Ａは、前述の下側受け金具１Ａの本体１ａの平面形状に近似した平板状の部材からなっている（図１）。また、その先端部は枢着軸２１ａが上向きに突設された軸部材２２ｂを構成し、その基端部は扉前後方向に孔が拡大された形状の３つのネジ孔２３ａ，２３ａ，２３ａを備えて取付板２２ａを構成している。そして、下側軸金具２Ａはネジ３０，３０，３０により扉枠体５０下側（床面）に堅固に固定される。このように、扉４０の重量のほぼ総てを支える枢着軸２１ａが扉枠体５０に堅固に固定されるため、受け穴部材１１ａとで構成する蝶番軸に狂いが生じる心配は極めて少ない。尚、下側軸金具２Ａの基端線は、扉４０の前面が当接する下側受け金具１Ａの本体１ａ基端面に合わせてあり、取り付け後において扉４０の閉状態における前面位置に一致するため、扉取り付け時における扉４０前面の位置決めを容易としている。
【００２３】
次に、扉４０の上側に装着する上側軸金具２Ｂおよび扉枠体５０の上側（鴨居側）に装着する上側受け金具１Ｂについて、図２及び図４を用いて以下に詳細に説明する。
上側軸金具２Ｂの構成は、図２に示すように前述の下側受け金具１Ａの構成とほぼ同様であるが、内部において支持される軸部材２１ｂが下側受け金具１Ａの受け穴部材１１ａと異なる。上側軸金具２Ｂは、その本体２ａが取付板２２ｂにより扉４０の上側前面に持ち出された状態で支持・固定される。取付板２２ｂは一部が本体２ａの基端面上辺に付設された平板からなり、ネジ孔２３ｂ，２３ｂを備えてネジ３０，３０により扉４０の上端面に固定される。
【００２４】
図４の（Ａ）は上側軸金具２Ｂの横断面図を示しており、図４の（Ｂ）は図２のＹ−Ｙ線に沿う縦断面図を示している。軸部材２１ｂは、前述の下側受け金具１Ａの受け穴部材１１ａとほぼ同様の構成である。即ち、軸部材２１ｂは基端側において左右調整ネジ２４が調整ネジ孔２１ｃを左右方向に水平に貫通・噛合して、本体２ａ内で左右に移動可能に支持されている。しかし、先端側に設けられた貫通孔２８には枢着軸２５が上下に挿通されて上側に先端を突出させている点が異なる。枢着軸２５はほぼ円柱状で、先端側（上側）約半分が大径部２５ａをなすとともに基端側（下側）約半分が小径部２５ｂをなし、基端にフランジ２５ｃを有している。そして、貫通孔２８は枢着軸２５の大径部２５ａを挿入・摺動できる内径を有しているが、その下側開口部は小径部２５ｂが摺動可能なだけの内径に狭小化されている。そして、貫通孔２８の内部にバネ２９を備えて枢着軸２５が上下に摺動可能かつ上方向に付勢された状態で支持されている。
【００２５】
一方、上側受け金具１Ｂは、前述の下側軸金具２Ａの基端側を延長した形状を有して、取付板１２ｂにより扉枠体５０上側（鴨居側）に装着される（図２）。取付板１２ｂは扉前後方向に拡大されたネジ孔１３ｂ，１３ｂ，１３ｂ，１３ｂを備え、ネジ３０，３０，３０，３０により上側受け金具１Ｂを扉枠体５０前方に持ち出した状態で扉枠体５０に固定させる。上側受け金具１Ｂの空中に持ち出されている部分は、上側軸金具２Ｂの本体部２ａの平面形状とほぼ共通し、その先端側が受け穴部材１１ｂを構成している。受け穴部材１１ｂはその下面側中央に枢着軸２５の大径部２５ａが挿入できる受け穴を備えている。尚、上側受け金具１Ｂの下面ほぼ中央位置には、取付後の閉状態における扉４０の前面位置を示す目印（図示しない矢印）が設けられている。
【００２６】
次に、本実施の形態のピボット蝶番１の扱い手順および作用について説明する。
先ず、扉枠体５０（ここでは間口の敷居・鴨居・壁等、壁部材と床面から構成される部分）側において、下側軸金具２Ａを敷居側（床面）に、上側受け金具１Ｂを鴨居側に装着する。この際、下側軸金具２Ａの基端線及び上側受け金具１Ｂの目印を、扉４０の前面位置にしたい位置に合わせる。本実施の形態では、間口の壁面と扉４０とが扉の閉状態で面一になるようにするため、壁面の延長線に合わせるようにして、所定数のネジ３０で各々固定する。尚、この段階では仮止め状態として、後で扉４０を前後から押すことにより両金具を前後に動かして微調整できるようにしてもよい。
【００２７】
一方、扉４０側においては、右寄りの下端面に下側受け金具１Ａの取付板１２ａを当接させ、上端面に上側軸金具２Ｂの取付板２２ｂを当接させて、それぞれ所定数のネジ３０で堅固に固定する。この際、両金具の本体基端面（垂直面）を扉４０の前面に当接させるようにする。これにより、上記の扉枠体５０において想定した位置に扉４０の閉状態における前面位置が一致するようになる。
【００２８】
扉に両金具１Ａ、２Ｂが装着されたら、扉４０を立てて扉枠体５０に近接させ、扉４０の前面をやや前傾させながら、先に下側受け金具１Ａを下側軸金具２Ａに枢着軸２１ａを介して係合させて下側蝶番を形成する。次に、上側軸金具２Ｂの底面に露出している枢着軸２５のフランジ２５ｃを指でつまんで、バネ２９の付勢力に抗して下方向に引き下げながら、上側受け金具１Ｂの受け穴位置に枢着軸２５の先端が合致する位置まで移動させ、フランジ２５ｃを離して枢着軸２５の大径部２５ａを受け穴部材１１ｂの受け穴に突出・挿入させる。このように、上側軸金具２Ｂの枢着軸２５が容易に上下動するため、取り付けが極めて容易になる。そして、扉４０はこの状態において、４つの異なる金具からなるピボット蝶番１により、開閉自在に扉枠体５０に軸着された状態となる。
【００２９】
扉４０が扉枠体５０に取り付けられた後、閉状態において扉枠体５０に対する左右位置が僅かにずれているとともに左右に傾斜しており、かつ、高さ位置も合致していないとする。この場合、下側受け金具１Ａの左側凹部１７にネジ頭１４を露出した左右調整ネジ１４と、上側軸金具２Ｂの左側凹部２７にネジ頭２４ａを露出した左右調整ネジ２４とを、それぞれドライバで回転させて左右位置の調整を行う。その際、扉４０が左右に傾斜しているので、上下の左右移動幅を異なるようにして扉４０が水平になるまで傾斜を調整する。次に、下側受け金具１Ａにおいて、ネジ窓１６内に頭部が露出している上下調整ネジ１５をドライバで回転させて高さ調整を行う。このように、位置調整手段を備えた各金具本体が扉前方に持ち出されて固定されているので扉閉状態でも容易に調整することができ、各調整ネジが回転させられることで扉４０が扉枠体５０に対し左右および上下に移動されて、位置調整作業が実施される。
【００３０】
本実施の形態のピボット蝶番１は上述したような構成であるから、扉４０を扉枠体５０に取り付けた状態において作業者が重い扉を支える必要もなく、しかも各方向のズレを確認しやすい扉の閉状態のままそれぞれ調整を行えるようになっているため、扉の位置調整が極めて容易となる。また、取り付け後のメンテナンスにおいても同様であるから、例え一人でも調整作業を容易に行うことができる。
【００３１】
さらに、構成する各金具の構造が単純であるため製作コストが低廉になるのに加えて、重量と力のかかる下側軸金具の枢着軸を固定して不動とするとともに、これに係合する下側受け金具の受け穴部材を左右に調整可能としたことで、蝶番自体の耐久性および軸位置の安定性が確保される。さらに加えて、調整機構を備えた各金具は、各調整ネジが金具内部の調整部材を左右に貫通した堅牢な構造を有しているため、故障が少なくメンテナンスの手間もかからないものとなる。
【００３２】
また、本実施の形態において、扉枠体５０への両金具の固定を仮留めにしておいて扉４０が前後に動くようにしておけば、扉４０を閉状態にしてこれを調整した後、開状態にしてネジを固定するようにすれば、扉前後方向の調整も容易となる。
【００３３】
尚、本発明を実施するための最良の形態は以上の説明で十分に示したが、本発明はこれらに限定されるものではない。例えば、本発明は建物の間口における扉に限らず、例えば、機械における開口部を開閉する部材などにおいても実施することができる。また、扉枠が扉と対をなして設計・製作されるアルミ扉においても同様に実施することができる。
【００３４】
【発明の効果】
以上述べたように、本発明であるピボット蝶番により、扉の位置調整を容易に実施できるようなった。また、その構成はシンプルかつ堅牢となり、製作コストも低廉でメンテナンスも容易となる。
【図面の簡単な説明】
【図１】本発明の実施の形態における下側蝶番を構成する金具の斜視図。
【図２】本発明の実施の形態における上側蝶番を構成する金具の斜視図。
【図３】（Ａ）は、図１における下側受け金具１Ａの横断面図であり、（Ｂ）は、図１における下側受け金具１ＡのＸ−Ｘ線に沿う断面図。
【図４】（Ａ）は、図２における上側軸金具２Ｂの横断面図であり、（Ｂ）は、図１における上側軸金具２ＢのＹ−Ｙ線に沿う断面図。
【符号の説明】
１ピボット蝶番、１Ａ下側受け金具、１Ｂ上側受け金具、１ａ，２ａ本体、２Ａ下側軸金具、２Ｂ上側軸金具、１１ａ，１１ｂ受け穴部材、１１ｃ，２１ｃ調整ネジ孔、１２ａ，１２ｂ，２２ａ、２２ｂ取付板、１３ａ，１３ｂ，２３ａ，２３ｂネジ孔、１４、２４左右調整ネジ、１４ａ，２４ａネジ頭、１４ｂ，２４ｂ抜け止め、１５上下調整ネジ、１６、２６ネジ窓、１７，１７ｂ凹部、１８受け穴，２１ａ，２５枢着軸、２１ｂ，２２ｂ軸部材、２５ａ大径部、２５ｂ小径部、２５ｃフランジ、１８，２８貫通孔、２９バネ、３０ネジ、４０扉、５０扉枠体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a so-called pivot hinge that supports a pivot shaft at a position taken forward of a door frame body and attaches the door to the door frame so that the door can be opened and closed with a large opening in a frontage or a partition.
[0002]
[Prior art]
For the purpose of opening and closing the door with a large opening at the frontage and the partition, a pivot hinge that pivotally attaches and supports the door to the door frame has been widely used. In particular, in order to enable the door to be opened from the closed state to 180 degrees, a type in which the hinge shaft position where the shaft member and the receiving hole member are engaged is brought out in front of the door is often used. .
[0003]
With such a pivot hinge, it is not easy to adjust the position of the door with the door attached to the door frame when the door position needs to be adjusted during or after the door is attached. For example, a shift / inclination with respect to the door frame cannot be grasped unless the door is closed. However, the position adjustment means is usually provided with a screw on the mounting plate attached to the hinge, and this is hidden when the door is closed, so adjustments are made while observing the displacement and inclination of the door. It is extremely difficult to do.
[0004]
On the other hand, in recent years, aluminum doors have become widespread, but when they are installed, the door frame to which the hinges of the door frame are attached is attached first in the field, and the hinges of the door are attached in the finishing work at a later date. In many cases, the door is carried and attached to the door frame. In this case, even if the positional relationship of the door frame and the door in the axially attached state is matched in the factory, subtle distortion occurs when the door frame is installed at the site, and the door and door frame are installed in the door installation work at a later date. The positional relationship may not match. Usually, the finishing work is often performed by a minimum number of people, but it is not easy to attach the equipment while adjusting it while supporting a heavy door on the site. In addition, the door position adjustment described above is necessary not only at the time of installation but also when misalignment or deviation occurs due to use after installation, but it is very difficult to adjust the hinge that supports the heavy door alone. Is.
[0005]
On the other hand, Japanese Patent Application Laid-Open No. 2002-242514 discloses a shaft fitting (door fitting) that is attached to a door with a pivot biased in a protruding direction, and a receiving fitting (door frame fitting) that is attached to a door frame. This pivot hinge has a casing carrying an insertion block that can be adjusted in the left-right direction at the base of the shaft bracket. By embedding it in the door, the position of the door in the left-right direction can be adjusted with an adjustment screw. At the same time, there has been proposed a pivot hinge that can adjust the vertical position of the door by rotating a nut member provided around the base end of the pivot of the lower shaft fitting.
[0006]
This pivot hinge not only allows the door position to be adjusted in a three-dimensional direction, but also allows the vertical position to be adjusted even when the door is closed, making the door position adjustment work relatively easy. However, even with this pivot hinge, it is not possible to adjust the door in the horizontal direction with the door closed, and it is also necessary to adjust the height by rotating the pivot base nut member with a wrench. It takes time and effort. Furthermore, in order to attach the shaft fitting to the door, it is necessary to embed a casing carrying the insertion block in the door, which requires a lot of construction procedures and labor. In particular, when it is applied to an aluminum door that has been widely used in recent years, there is also a problem that it can be applied only to a specially designed aluminum door.
[0007]
On the other hand, Japanese Patent Application Laid-Open No. 9-209641 proposes a technique in which the axial position of the pivot hinge can be adjusted in the three-dimensional direction even when the door is closed, and the door position can be easily adjusted on site. In this shaft member attached to the lower shaft bracket, the pivot shaft can be moved in two directions (x and y directions) on the horizontal plane by two adjusting screws, and the receiving hole member of the lower bracket It is possible to adjust the door position easily even after the door is mounted by adjusting the vertical direction (z direction) with the adjusting screw provided on the door.
[0008]
However, the shaft member that supports the weight of the door is required to be robust, and is required to support the door firmly on the door frame so that the shaft position does not swing. The shaft is supported by two adjusting screws through the rings from substantially right angles to adjust the horizontal position. Therefore, it is necessary to attach each adjustment screw to the shaft frame so as to be able to swing, and the fixing force at the shaft position is weak. Therefore, there is a problem that the shaft position swings and the door mounting position is likely to be incorrect. In addition, since this pivot hinge is configured in a complicated manner by a large number of minute parts, there is a problem that the manufacturing cost is high, and there is a problem that it lacks robustness and easily breaks down and breaks, requiring maintenance.
[0009]
[Problems to be solved by the invention]
The present invention is intended to solve the above-described problems. In the pivot hinge, the door position can be easily adjusted, and the configuration is simple and robust. It is an object to make maintenance easy.
[0010]
[Means for Solving the Problems]
Therefore, the present invention has a shaft member in which an upward pivot shaft is erected and has an upper shaft fitting attached to the upper side of the door and a receiving hole into which the pivot shaft of the upper shaft fitting is fitted. An upper hinge that is pivotally attached to an upper receiving bracket that is disposed on the upper side of the door frame body and a lower side on which an upward pivoting shaft is erected and disposed on the lower side of the door frame body The lower metal fitting attached to the lower side of the door having a receiving hole member formed with a receiving hole into which the pivoting shaft of the lower metal fitting is fitted and inserted is located at the take-out position in front of the door frame body. In a pivot hinge comprising a lower hinge that is pivotally attached to each other, the shaft member of the upper hinge and the receiving hole member of the lower hinge are arranged so as to be adjustable in the left and right directions by left and right adjustment screws along the door surface, respectively. And the door is removed when the door is closed. The upper and lower hinge shafts and the lower hinge receiving hole members each have an adjustment screw hole along the door surface on the side surface, and are adjusted by left and right adjustment screws screwed here. The door mounting position can be adjusted in the left-right direction when the door is closed, and the lower receiving metal fitting has a receiving hole in which a screw groove is engraved on the inner periphery. The top wall, which is the bottom surface of the vertical adjustment screw, can be moved up and down by rotating the vertical adjustment screw threaded from the bottom surface of the hole member to the top surface and screwed into the receiving hole . The receiving hole member is provided with the adjustment screw hole on the proximal end side, the receiving hole is provided on the distal end side, the shaft member of the upper shaft metal fitting is provided with the adjustment screw hole on the proximal end side, The pivot shaft is inserted vertically on the tip side. And a pivot hinge, wherein a through hole is provided.
[0011]
This makes it possible to adjust the left / right position of the door simply by rotating the left / right adjustment screws of the hinges that are brought out to the front of the upper and lower sides of the door frame, and adjust the door position while observing the deviation of the door position. it can. In addition, since it is no longer necessary for the operator to support a heavy door, the adjustment work becomes extremely easy. In particular, the lower receiving bracket is provided with a receiving hole member, which can be moved to the left and right, and that the pivot shaft of the lower shaft bracket is fixed and attached to the door frame body side, so that a large weight and force can be obtained. The configuration of the lower shaft fitting can be a simple and robust structure. Accordingly, the shaft position is less likely to be misaligned or damaged, the production cost is reduced, and the maintenance work such as repair is also reduced. In the present invention, the door frame body includes not only a frame body produced exclusively for the door to be attached but also a front structure (wall, floor, etc.) at the door installation position. In addition, when adjusting the left and right positions at the two upper and lower positions, it goes without saying that the left and right inclination of the door can be adjusted by making the vertical movement widths different from each other.
[0012]
Further, in the above invention, the lower receiving metal fitting is vertically adjusted by being screwed into the receiving hole so that a receiving hole having a thread groove formed on the inner periphery penetrates from the lower surface to the upper surface of the receiving hole member. If the top wall, which is the lower surface of the vertical adjustment screw, can be moved up and down by rotating the screw, simply rotate the vertical adjustment screw from above with a screwdriver, and the pivot shaft of the shaft member is inserted. Since the height of the side metal fittings can be adjusted up and down, the door position adjustment work in the vertical direction can be easily performed in addition to the horizontal direction even when the door is closed.
[0013]
Furthermore, in the above inventions, if the left and right adjustment screws in the upper and lower hinges are respectively engaged with the adjustment screw holes penetrating the shaft member or the receiving hole member in the left and right directions and supported in each bracket, The configuration of the position adjusting mechanism becomes more robust, and the engagement in the shaft member or the receiving hole member is further strengthened. And the adjustment work becomes easy only to rotate a screw with a driver.
[0014]
Furthermore, in each of the above inventions, a mounting plate is provided on each of the upper receiving metal fitting and the lower shaft metal fitting, and a mark or an end line for displaying a front position when the door is closed with respect to the door frame body is provided on the mounting plate. If each is provided, the mark or the end line position indicates the front position of the door in the closed state in the door frame, so that the front position of the door can be grasped when the door is mounted. Therefore, it becomes possible to determine a precise door front surface position in the door frame and attach the door. This also minimizes the adjustment of the front / rear position of the door after installation.
[0015]
In addition, in the invention in which the front position of the door can be grasped when the door is mounted, a plurality of screw holes whose holes are enlarged in the front-rear direction of the door are provided in the mounting plates of the upper receiving metal fitting and the lower shaft metal fitting, respectively. If it is possible to adjust the front / rear position of the door, the mounting plate can be moved back and forth within the expanded screw hole range when the screw is loosened. You can do it. Needless to say, the front / rear inclination of the door can also be adjusted by moving the front / rear adjustment widths at the two upper and lower positions different from each other.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail below with reference to the drawings.
In the present invention, the direction in which the upper and lower hinges are taken out, that is, the direction in which the door greatly expands is defined as the door front.
[0017]
1 and 2 show an embodiment of the present invention. As shown in FIG. 1, the lower receiving metal 1A is in a state where the main body 1a is taken out in front of the door 40 on the lower side of the door 40. The lower shaft fitting 2A is attached in a state where the shaft member 22b, to which the pivot shaft 21a is fixed vertically, is taken out forward on the lower side (floor surface) of the door frame 50. Then, both the metal fittings are engaged to form a lower hinge, and the door 40 is supported and pivotally attached to the door frame 50 in a state where the hinge shaft is taken out to the lower front side of the door 40 and the door frame 50.
[0018]
On the other hand, as shown in FIG. 2, the upper shaft fitting 2B is attached with the main body 2a being taken out in front of the door 40 on the upper side of the door 40, and the upper receiving fitting 1B is located on the upper side of the door frame 50 (the head side). , The receiving hole member 11b is attached in a state of being taken forward. Then, both the metal fittings are engaged to form an upper hinge, and the door 40 is supported and pivotally attached to the door frame 50 in a state where the hinge shaft is taken out in front of the door 40 and the door frame 50. And the pivot hinge 1 which is this Embodiment is comprised by the upper and lower hinges which consist of four metal fittings from which this shape differs.
[0019]
First, the lower metal fitting 1A attached to the lower end side of the door 40 and the lower shaft metal fitting 2A attached to the lower side of the door frame 50 will be described in detail with reference to FIGS.
As described above, the lower receiving metal 1A is supported and fixed by the mounting plate 12a in a state where the main body 1a is taken out to the lower front side of the door 40 (FIG. 1), but a part of the mounting plate 12a is the main body 1a. It is made of a flat plate attached to the lower side portion of the base end side, and has screw holes 13a, 13a and is attached to the lower end surface of the door 40 by screws 30, 30.
[0020]
3A shows a cross-sectional view of the lower receiving metal fitting 1A, and FIG. 3B shows a vertical cross-sectional view along the line XX of FIG. The main body 1a of the lower receiving metal fitting 1A is a box-shaped member having a substantially rectangular base end side and a circular tip end side in a plan view and having no bottom surface. In addition, a receiving hole member 11a is provided inside, a screw window 16 is provided on the upper surface, and a left and right adjustment screw 14 is provided with a recess 17 in which the head portion 14a is exposed. The left and right adjustment screw 14 penetrates to the right side of the main body 1a, but the front end portion 14b is larger than the diameter of the insertion hole so that the left and right adjustment screw 14 cannot be removed from the main body 1a. Yes.
[0021]
The shape of the receiving hole member 11a is smaller than and approximates the outer shape of the main body 1a, and can move left and right with a predetermined width inside the main body 1a. Further, the receiving hole member 11 a is provided with an adjustment screw hole 11 c provided with a screw thread with which the left and right adjustment screw 14 meshes with the base end side, and is slid to the left and right by the rotation of the left and right adjustment screw 14. Further, the receiving hole member 11a is provided with a receiving hole 18 penetrating vertically on the distal end side thereof, and an upper and lower adjustment screw 15 closes an upper portion of the receiving hole 18 and meshes with a screw thread on an inner wall of the receiving hole 18. Can be moved up and down. That is, the lower surface of the vertical adjustment screw 15 forms the top wall of the receiving hole 18, and the tip of a shaft 21a, which will be described later, comes into contact therewith, and the vertical position of the door 40 is adjusted by rotating and moving it.
[0022]
On the other hand, the lower shaft fitting 2A is formed of a flat plate-like member that approximates the planar shape of the main body 1a of the lower receiving fitting 1A (FIG. 1). Further, the tip portion constitutes a shaft member 22b with a pivot shaft 21a projecting upward, and the base end portion includes three screw holes 23a, 23a, 23a having a shape in which the hole is enlarged in the front-rear direction of the door. The mounting plate 22a is configured. The lower shaft fitting 2A is firmly fixed to the lower side (floor surface) of the door frame body 50 by screws 30, 30, and 30. Thus, since the pivot shaft 21a that supports almost all of the weight of the door 40 is firmly fixed to the door frame body 50, there is very little concern that the hinge shaft formed by the receiving hole member 11a will be out of order. The base end line of the lower shaft fitting 2A is aligned with the base end face of the main body 1a of the lower receiving fitting 1A with which the front face of the door 40 abuts, and matches the front face position in the closed state of the door 40 after mounting. The positioning of the front surface of the door 40 when the door is attached is facilitated.
[0023]
Next, the upper shaft fitting 2B to be mounted on the upper side of the door 40 and the upper receiving bracket 1B to be mounted on the upper side of the door frame body 50 (the head side) will be described in detail below with reference to FIGS.
As shown in FIG. 2, the configuration of the upper shaft bracket 2B is substantially the same as the configuration of the lower receiving bracket 1A described above, but the shaft member 21b supported inside is connected to the receiving hole member 11a of the lower receiving bracket 1A. Different. The upper shaft fitting 2B is supported and fixed in a state where the main body 2a is taken out to the upper front surface of the door 40 by the mounting plate 22b. A part of the mounting plate 22b is a flat plate attached to the upper side of the base end surface of the main body 2a. The mounting plate 22b includes screw holes 23b and 23b and is fixed to the upper end surface of the door 40 by screws 30 and 30.
[0024]
4A shows a cross-sectional view of the upper shaft fitting 2B, and FIG. 4B shows a vertical cross-sectional view taken along line YY of FIG. The shaft member 21b has substantially the same configuration as the receiving hole member 11a of the lower receiving metal fitting 1A. That is, the shaft member 21b is supported on the base end side so that the left / right adjustment screw 24 horizontally penetrates and meshes with the adjustment screw hole 21c in the left / right direction so as to be movable in the left / right direction within the main body 2a. However, the difference is that the pivot shaft 25 is vertically inserted into the through hole 28 provided on the tip side so that the tip protrudes upward. The pivot shaft 25 has a substantially cylindrical shape, about half of the distal end (upper side) forms a large diameter portion 25a, about half of the proximal end (lower side) forms a small diameter portion 25b, and has a flange 25c at the proximal end. Yes. The through hole 28 has an inner diameter through which the large-diameter portion 25a of the pivot shaft 25 can be inserted and slid, but its lower opening is narrowed to an inner diameter that allows the small-diameter portion 25b to slide. ing. A spring 29 is provided inside the through hole 28, and the pivot shaft 25 is supported in a state in which it can slide up and down and is urged upward.
[0025]
On the other hand, the upper receiving metal fitting 1B has a shape obtained by extending the base end side of the lower shaft metal fitting 2A described above, and is attached to the upper side (the head side) of the door frame 50 by the mounting plate 12b (FIG. 2). The mounting plate 12b is provided with screw holes 13b, 13b, 13b, 13b that are enlarged in the front-rear direction of the door, and the door frame body in a state where the upper receiving metal fitting 1B is taken forward by the screws 30, 30, 30, 30. 50. The portion of the upper receiving metal fitting 1B taken out into the air is substantially the same as the planar shape of the main body 2a of the upper shaft metal fitting 2B, and the tip side constitutes the receiving hole member 11b. The receiving hole member 11b has a receiving hole into which the large-diameter portion 25a of the pivot shaft 25 can be inserted at the center on the lower surface side. Note that a mark (not shown) indicating the front position of the door 40 in the closed state after attachment is provided at a substantially central position on the lower surface of the upper receiving metal fitting 1B.
[0026]
Next, the handling procedure and operation of the pivot hinge 1 of the present embodiment will be described.
First, on the door frame body 50 (here, a part composed of a wall member and a floor surface, such as a front door sill, duck, wall, etc.), the lower shaft fitting 2A is placed on the sill side (floor surface) and the upper receiving metal fitting 1B. Is installed on the Kamoi side. At this time, the base end line of the lower shaft fitting 2 </ b> A and the mark of the upper receiving fitting 1 </ b> B are aligned with the position where the front position of the door 40 is desired. In the present embodiment, the wall surface of the frontage and the door 40 are fixed with a predetermined number of screws 30 so as to be aligned with the extension line of the wall surface so that the door 40 is flush with the door in the closed state. At this stage, the temporarily fixed state may be set so that the metal fittings can be moved back and forth to be finely adjusted by pushing the door 40 back and forth later.
[0027]
On the other hand, on the door 40 side, the attachment plate 12a of the lower receiving metal fitting 1A is brought into contact with the lower end surface on the right side, and the attachment plate 22b of the upper shaft fitting 2B is brought into contact with the upper end surface, thereby each of a predetermined number of screws 30. To fix firmly. At this time, the main body base end surfaces (vertical surfaces) of both metal fittings are brought into contact with the front surface of the door 40. Thereby, the front position in the closed state of the door 40 coincides with the position assumed in the door frame 50.
[0028]
When both the metal fittings 1A and 2B are mounted on the door, the lower receiving metal fitting 1A is first attached to the lower shaft metal fitting 2A while raising the door 40 and bringing it close to the door frame 50 and tilting the front surface of the door 40 slightly forward. The lower hinge is formed by engaging through the pivot shaft 21a. Next, pinching the flange 25c of the pivot shaft 25 exposed on the bottom surface of the upper shaft fitting 2B with a finger and pulling it downward against the urging force of the spring 29, the position of the receiving hole of the upper fitting 1B. To the position where the tip of the pivot shaft 25 is matched, the flange 25c is released, and the large diameter portion 25a of the pivot shaft 25 is projected and inserted into the receiving hole of the hole member 11b. In this way, the pivot shaft 25 of the upper shaft fitting 2B easily moves up and down, so that attachment becomes extremely easy. In this state, the door 40 is pivotally attached to the door frame 50 so as to be freely opened and closed by the pivot hinge 1 made of four different metal fittings.
[0029]
It is assumed that after the door 40 is attached to the door frame body 50, the left and right positions with respect to the door frame body 50 are slightly shifted and tilted to the left and right in the closed state, and the height position does not match. In this case, the left and right adjustment screws 14 with the screw heads 14 exposed in the left concave portion 17 of the lower receiving metal fitting 1A and the left and right adjustment screws 24 with the screw heads 24a exposed in the left concave portion 27 of the upper shaft fitting 2B are respectively screwed. Rotate to adjust left / right position. At this time, since the door 40 is inclined to the left and right, the inclination is adjusted until the door 40 becomes horizontal with different vertical movement widths. Next, in the lower receiving metal fitting 1A, the height adjustment is performed by rotating the vertical adjustment screw 15 having the head exposed in the screw window 16 with a screwdriver. In this way, each metal fitting body provided with the position adjusting means is taken out and fixed in front of the door, so that it can be easily adjusted even when the door is closed, and each adjustment screw is rotated to turn the door 40 into the door. The position adjustment operation is performed by moving the frame 50 left and right and up and down.
[0030]
Since the pivot hinge 1 of the present embodiment is configured as described above, it is not necessary for an operator to support a heavy door in a state in which the door 40 is attached to the door frame body 50, and it is easy to check the displacement in each direction. Since each adjustment can be performed while the door is closed, the position of the door can be adjusted extremely easily. Further, since the same applies to the maintenance after the attachment, even one person can easily perform the adjustment work.
[0031]
In addition, the structure of each bracket is simple and the manufacturing cost is low. In addition, the pivot shaft of the lower shaft bracket, which is heavy and heavy, is fixed and fixed so that it does not move. By making the receiving hole member of the lower receiving metal fitting adjustable to the left and right, the durability of the hinge itself and the stability of the shaft position are ensured. In addition, each metal fitting provided with an adjustment mechanism has a robust structure in which each adjustment screw penetrates the adjustment member inside the metal fitting to the left and right, so that there is little failure and less maintenance work.
[0032]
Further, in the present embodiment, if both the metal fittings to the door frame 50 are temporarily fastened and the door 40 is moved back and forth, after the door 40 is closed and adjusted, If the screws are fixed in the open state, the adjustment in the front-rear direction of the door is facilitated.
[0033]
Although the best mode for carrying out the present invention has been sufficiently shown in the above description, the present invention is not limited to these. For example, the present invention is not limited to a door at a frontage of a building, and can be implemented, for example, in a member that opens and closes an opening in a machine. The same can be applied to an aluminum door designed and manufactured with a door frame paired with the door.
[0034]
【The invention's effect】
As described above, the pivot hinge according to the present invention can easily adjust the position of the door. In addition, the configuration is simple and robust, the production cost is low, and maintenance is easy.
[Brief description of the drawings]
FIG. 1 is a perspective view of a metal fitting constituting a lower hinge in an embodiment of the present invention.
FIG. 2 is a perspective view of a metal fitting constituting the upper hinge in the embodiment of the present invention.
3A is a transverse cross-sectional view of the lower receiving metal fitting 1A in FIG. 1, and FIG. 3B is a cross-sectional view taken along line XX of the lower receiving metal fitting 1A in FIG.
4A is a cross-sectional view of the upper shaft fitting 2B in FIG. 2, and FIG. 4B is a cross-sectional view taken along line YY of the upper shaft fitting 2B in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pivot hinge, 1A lower receiving metal fitting, 1B upper receiving metal fitting, 1a, 2a main body, 2A lower axial metal fitting, 2B upper axial metal fitting, 11a, 11b Receiving hole member, 11c, 21c Adjustment screw hole, 12a, 12b, 22a , 22b Mounting plate, 13a, 13b, 23a, 23b Screw hole, 14, 24 Left / right adjustment screw, 14a, 24a Screw head, 14b, 24b Retaining stopper, 15 Vertical adjustment screw, 16, 26 Screw window, 17, 17b Recessed part, 18 receiving hole, 21a, 25 pivot shaft, 21b, 22b shaft member, 25a large diameter portion, 25b small diameter portion, 25c flange, 18, 28 through hole, 29 spring, 30 screw, 40 door, 50 door frame

Claims

An upper shaft fitting that has a shaft member with an upward pivot shaft standing thereon and is attached to the upper side of the door, and a receiving hole into which the pivot shaft of the upper shaft fitting is fitted, and that is disposed on the upper side of the door frame body An upper hinge that is pivotally attached to each other at the take-out position in front of the door frame body, and a lower shaft bracket that is provided with an upward pivoting shaft standing on the lower side of the door frame body and the lower side. A lower receiving metal fitting, which has a receiving hole member in which a receiving shaft into which a pivot shaft of the shaft metal fitting is inserted, is attached to the lower side of the door, is pivotally attached to each other at the take-out position in front of the door frame body. In the pivot hinge consisting of the lower hinge,
The shaft member of the upper hinge and the receiving hole member of the lower hinge are each provided with an adjustment screw hole along the door surface on the side surface and arranged so as to be adjustable in the left-right direction by means of a left-right adjustment screw, The door mounting position can be adjusted in the left-right direction when the door is closed.
The lower receiving metal fitting has a receiving hole in which a screw groove is engraved on the inner periphery, penetrates from the lower surface to the upper surface of the receiving hole member, and rotates the vertical adjustment screw screwed in the receiving hole. The top wall, which is the bottom surface of the adjustment screw, can be moved up and down,
The receiving hole member of the lower receiving metal fitting is provided with the adjustment screw hole on the base end side and the receiving hole on the distal end side,
The pivot hinge is characterized in that the shaft member of the upper shaft metal fitting is provided with the adjustment screw hole on the proximal end side and a through hole through which the pivot shaft is inserted vertically on the distal end side .

The left and right adjustment screws in the upper and lower hinges are respectively screwed into adjustment screw holes penetrating the shaft member or the receiving hole member in the left and right directions and supported in each bracket. Pivot hinge.

Each of the upper receiving metal fitting and the lower shaft metal fitting has a mounting plate, and the mounting plate is provided with a mark or a base line for displaying the front position of the door in the door frame when the door is closed. the door was possible to grasp the door front position in the closed state when the door mounting according to claim 1 or 2, wherein the pivot hinge.

4. The pivot according to claim 3, wherein a plurality of screw holes whose holes are enlarged in the front-rear direction of the door are respectively provided in the mounting plates of the upper receiving metal fitting and the lower shaft metal fitting so that the front-rear position of the door can be adjusted. hinge.