JP4044430B2

JP4044430B2 - HINGE DEVICE AND ELECTRONIC DEVICE USING HINGE DEVICE

Info

Publication number: JP4044430B2
Application number: JP2002359383A
Authority: JP
Inventors: 勝俊佐藤
Original assignee: Strawberry Corp
Current assignee: Strawberry Corp
Priority date: 2002-12-11
Filing date: 2002-12-11
Publication date: 2008-02-06
Anticipated expiration: 2022-12-11
Also published as: JP2004190785A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば、ノート型と称されるパソコンやワープロ、あるいは携帯電話などの電子機器における操作部を備えた本体部とディスプレイ部を備えた開閉蓋部となる重合部とを起伏開閉自在に枢着するために使用されるヒンジ装置並びにこの電子機器に関するものである。
【０００２】
【従来の技術及び発明が解決しようとする課題】
例えば、ノート型と称されるパソコンやワープロは、操作部を備えた本体部に対してディスプレイ部を備えた開閉蓋部（重合部）がヒンジ装置を介して起伏開閉自在に設けられているが、この開閉蓋部を本体部に伏した閉塞重合状態でこの開閉蓋部が勝手に開いてしまうことがないように、閉塞状態を維持する重合保持機能をヒンジ装置に設けている。
【０００３】
即ち、例えばヒンジ装置の回動軸部を軸に互いに相対回動自在に設けられる本体部若しくは重合部の回動と共に回動するカム部と、重合部若しくは本体部の回動と共に回動するカム係合部とを有し、閉塞重合状態となるとき、このカム部に設けた凸部とカム係合部に設けた凹部とが凹凸係合することでこの重合状態が係合保持されるように構成する。
【０００４】
更に説明すれば、例えば本体部若しくは重合部に連結する第一連結部に回動軸部を設け、重合部若しくは本体部に連結する第二連結部に前記回動軸部が回動自在に係合する軸受部を設け、前記第一連結部に前記回動軸部と共に回動する凸部を有するカム部を設け、前記軸受部と共に回動する凹部を有するカム係合部を前記第二連結部に設け、この相対回動することで凹凸係合するカム部，カム係合部の少なくとも一方を回動軸部に沿って係合離反方向にスライド移動自在に設けると共に、このカム部，カム係合部の少なくとも一方が係脱するに際して離反方向に移動した際係合方向に付勢するバネによる係合付勢機構を設けて、本体部に対して重合部を相対回動して閉塞重合状態とした際にこのカム部とカム係合部とが凹凸係合途中となり、前記バネによる係合付勢機構によってこの係合途中が保持され閉塞付勢されて重合閉塞状態が係合保持されるように構成し、またこのカム部，カム係合部のいずれか一方を前記係合付勢機構に抗して離反方向に移動させつつ回動させることで前記カム係合部に対してカム部を係脱させ、そのまま本体部に対して重合部を相対回動できるように構成する。
【０００５】
このようにヒンジ装置を構成することで、別に閉塞保持装置を設けてこれをロック解除する等のやっかいな操作は一切不要にして重合状態とすることで自動的にカム係合（凹凸係合）付勢とバネ付勢とによってこの重合状態が係合保持されることとなり、そのままこの閉塞付勢に抗して回動すれば開放できることとなる。即ち、常に重合状態では閉塞方向（重合状態となる方向）に付勢されることとなって開き止めされ、また、開放回動したいときには、この付勢力に抗して回動すればカム係合が外れてそのまま開放回動することができる。
【０００６】
しかしながら、従来のこのカム係合は一般に一方のカム部に１８０度対称位置に夫々凸部を設け、他方のカム係合部にこれに係合する凹部を同じく１８０度対称位置に夫々設け、相対回動することでバネに付勢されつつ夫々が同時に互いに凹凸係合するように構成している。
【０００７】
従って、閉塞重合状態で夫々の凸部と凹部とがバネ付勢によって凹凸係合途中となるように設計して十分な閉塞付勢が生じるようにしているため、この凹凸係合から脱して開放方向に回動した際には１８０度開放回動する手前の例えば１６０〜１７０度くらい開いたところで夫々の凸部と凹部とが完全に再び凹凸係合（クリック係合）し、この位置で開放状態が係合保持されるように構成されている。
【０００８】
そのため、閉塞付勢を生じるだけでなく、必ず開放状態の所定位置でも係合保持されることになるため、便利とも言えるが、逆に常にこの開放位置で係合保持されることとなるためわずらわしい場合も多い。
【０００９】
即ち、カム部とカム係合部とのバネ付勢による相対回動摩擦によって、開き途中のどの位置でも手を放した位置で停止するフリーストップ状態となるように設定すれば、むしろ特定の開放位置で係合保持されない方が、所望する開放位置で停止させることにより自由に重合部の角度を調整設定でき、便利となる場合が多い。
【００１０】
そこで、閉塞重合状態では閉塞付勢あるいは凹凸係合保持機能が従来通り生じるが、開放位置では凹凸係合保持機能が生じない（クリック係合しない）構成に改良することに着目した。
【００１１】
しかし、単にカム部とカム係合部との夫々の一側にのみ一つの凸部と一つの凹部を形成し、これのみを凹凸係合させるように構成すれば、３６０度回動しなければ再び凹凸係合しないため開放位置でクリック係合しない構成とすることができるが、この場合一箇所の凹凸係合のみであるために前記閉塞重合状態での閉塞付勢や凹凸係合保持力が十分に生じない。
【００１２】
また、一箇所での凹凸係合のみとした上で、凹凸係合によるこの閉塞付勢力を大きくするために、この凹凸を深くしたり、傾斜をきつくしたり、バネ力を大きくすると離脱力がかなり必要となってしまったり、スムーズな回動が行えなくなる等という問題が逆に生じてしまう。
【００１３】
本発明は、このような問題点を解決しつつ、従来通り十分な閉じ付勢や凹凸係合保持機能が重合時に生じつつ、開放位置では係合保持されず自由に角度調整が行える画期的なヒンジ装置並びにヒンジ装置を用いた電子機器を提供することを目的としている。
【００１４】
【課題を解決するための手段】
添付図面を参照して本発明の要旨を説明する。
【００１５】
第一部材２と第二部材４とを枢着し、この第一部材２を第二部材４に対して重合閉塞状態から開放方向に相対的に回動せしめるヒンジ装置であって、回動軸部６を軸に互いに相対回動自在に設けられる前記第一部材２の回動と共に回動するカム部９と、前記第二部材４の回動と共に回動するカム係合部10とを有し、このカム部９に設けた凸部９Ａとカム係合部10に設けた凹部10Ａとが凹凸係合することでその回動位置が係合保持されるように構成し、この相対回動することで凹凸係合するカム部９，カム係合部 10 の少なくとも一方を係合離反方向にスライド移動自在に設けると共に、このカム部９，カム係合部 10 の少なくとも一方が係脱するに際して離反方向に移動した際係合方向に付勢する係合付勢機構 11 を設けて、前記第一部材２と前記第二部材４とを相対回動して重合閉塞状態とした際にこのカム部９とカム係合部 10 とが凹凸係合若しくは係合途中となり、前記係合付勢機構 11 によりこの係合が保持され重合閉塞状態が保持あるいは閉塞付勢されるように構成し、このカム部９，カム係合部 10 のいずれか一方を前記係合付勢機構 11 に抗して離反方向に移動させつつ回動させることで前記カム係合部 10 に対してカム部９を係脱させ、前記第一部材２に対して前記第二部材４を相対回動するように構成したヒンジ装置において、前記カム部９に設けた第一の凸部９Ａが係合する第一の凹部10Ａを前記カム係合部10に設け、この第一の凸部９Ａと第一の凹部10Ａとが前記重合閉塞状態のとき係合若しくは係合途中となるように構成すると共に、この重合閉塞状態のときに同様に係合若しくは係合途中となる第二の凸部９Ｂと第二の凹部10Ｂを前記カム部９と前記カム係合部10に設け、前記第二の凸部９Ｂは前記第一の凹部10Ａより回動方向幅を短くし且つ第二の凹部10Ｂは前記第一の凸部９Ａより回動方向幅を短く設定して、前記重合閉塞状態のときには第一，第二の双方の凸部９Ａ，９Ｂと双方の凹部10Ａ，10Ｂとが夫々係合若しくは係合途中となるが、開放方向に回動した際、前記第一の凸部９Ａは前記第二の凹部10Ｂには落ち込まずに通過し得、且つこのとき第二の凸部９Ｂは第一の凹部10Ａ上に前記第一の凸部９Ａが落ち込み係合しないことにより支持され浮上保持されるように構成したことを特徴とするヒンジ装置に係るものである。
【００１６】
また、第一部材２と第二部材４とを枢着し、この第一部材２を第二部材４に対して重合閉塞状態から開放方向に相対的に回動せしめるヒンジ装置であって、第一部材２に連結する第一連結部５に回動軸部６を設け、第二部材４に連結する第二連結部７に前記回動軸部６が回動自在に係合する軸受部８を設け、前記第一連結部５に前記回動軸部６と共に回動する凸部９Ａを有するカム部９若しくは凹部10Ａを有するカム係合部10を設け、前記軸受部８と共に回動する凹部10Ａを有するカム係合部10若しくは凸部９Ａを有するカム部９を前記第二連結部７に設け、この相対回動することで凹凸係合するカム部９，カム係合部10の少なくとも一方を係合離反方向にスライド移動自在に設けると共に、このカム部９，カム係合部10の少なくとも一方が係脱するに際して離反方向に移動した際係合方向に付勢する係合付勢機構11を設けて、前記第一部材２と前記第二部材４とを相対回動して重合閉塞状態とした際にこのカム部９とカム係合部10とが凹凸係合若しくは係合途中となり、前記係合付勢機構11によりこの係合が保持され重合閉塞状態が保持あるいは閉塞付勢されるように構成し、このカム部９，カム係合部10のいずれか一方を前記係合付勢機構11に抗して離反方向に移動させつつ回動させることで前記カム係合部10に対してカム部９を係脱させ、前記第一部材２に対して前記第二部材４を相対回動するように構成したヒンジ装置において、前記カム部９に設けた第一の凸部９Ａが係合する第一の凹部10Ａを前記カム係合部10に設け、この第一の凸部９Ａと第一の凹部10Ａとが前記重合閉塞状態のとき係合若しくは係合途中となるように構成すると共に、この重合閉塞状態のときに同様に係合若しくは係合途中となる第二の凸部９Ｂと第二の凹部10Ｂを前記カム部９と前記カム係合部10に設け、前記第二の凸部９Ｂは前記第一の凹部10Ａより回動方向幅を短くし且つ第二の凹部10Ｂは前記第一の凸部９Ａより回動方向幅を短く設定して、前記重合閉塞状態のときには第一，第二の双方の凸部９Ａ，９Ｂと双方の凹部10Ａ，10Ｂとが係合若しくは係合途中となるが、開放方向に回動した際、前記第一の凸部９Ａは前記第二の凹部10Ｂには落ち込まずに通過し得、且つこのとき第二の凸部９Ｂは第一の凹部10Ａ上に前記第一の凸部９Ａが落ち込み係合しないことにより支持され浮上保持されるように構成したことを特徴とするヒンジ装置に係るものである。
【００１７】
また、前記第一の凸部９Ａの突出度は前記第二の凸部９Ｂの突出度より大きく設定したことを特徴とする請求項１，２のいずれか１項に記載のヒンジ装置に係るものである。
【００１８】
また、操作部１を設けた本体部２と、ディスプレイ部３を設けた重合部４とを、前記操作部１を操作しない時にはこの操作部１を覆うように重合配設し、この重合した状態から前記重合部４を相対的に回動して操作部１を露出させることができるように前記本体部２と前記重合部４とを回動自在に連結するヒンジ装置を有し、このヒンジ装置には、前記本体部２を前記第一部材２若しくは第二部材４とし、前記重合部４を前記第二部材４若しくは第一部材２とした前記請求項１〜３のいずれか１項に記載のヒンジ装置を用いたことを特徴とするヒンジ装置を用いた電子機器に係るものである。
【００１９】
【発明の実施の形態】
好適と考える本発明の実施の形態（発明をどのように実施するか）を、図面に基づいてその作用効果を示して簡単に説明する。
【００２０】
例えば、第一部材２に対して第二部材４を相対回動して重合状態とすると、回動軸部６を軸として係合付勢機構11により押圧付勢されつつカム部９とカム係合部10とは相対回動して、カム部９の第一の凸部９Ａはカム係合部10の第一の凹部10Ａに、カム部９の第二の凸部９Ｂはカム係合部10の第二の凹部10Ｂに夫々凹凸係合若しくは係合途中となる。
【００２１】
従って、係合付勢機構11による押圧付勢とこの凹凸の吸い込み力によるカム係合付勢によって重合方向へ回動付勢（閉塞付勢）が生じ、この係合付勢機構11に付勢された凹凸係合によって、重合状態が係合保持される。
【００２２】
この際、従来通り二箇所の凹凸部９Ａ，９Ｂ，10Ａ，10Ｂによって凹凸係合あるいは凹凸係合途中となるため、例えば極端に凹凸を深くしたり、係合傾斜面の傾斜をきつくしたり、係合付勢機構11によるバネ付勢を強くしなくても十分な係合保持力が生じる。
【００２３】
また、第一部材２に対して第二部材４を開放方向に相対回動させれば係合付勢機構11の付勢に抗してカム部９，カム係合部10の一方を離反させつつ凹凸係合を脱しさせ、そのまま回動させることができるが、この場合、第一の凸部９Ａは第一の凹部10Ａから脱してカム係合部10の当接面に沿って回動し、第二の凸部９Ｂも第二の凹部10Ｂから脱して回動して行くこととなる。そしてこの開放回動に際して重合状態では第二の凸部９Ｂが係合する第二の凹部10Ｂに第一の凸部９Ａが達することになるが、この第二の凹部10Ｂは第一の凸部９Ａに比してその回動方向幅が小さいため、第一の凸部９Ａはこの第二の凹部10Ｂに落ち込み係合することなく、この第二の凹部10Ｂに対して架設状態となりつつ回動通過することとなる。
【００２４】
また、第二の凸部９Ｂは第一の凹部10Ａに達することになるが、第二の凸部９Ｂは、この第一の凸部９Ａが第二の凹部10Ｂに落ち込み係合しないことにより支持されるために（第一の凹部10Ａは第二の凸部９Ｂよりその回動方向幅は広いけれども）、第二の凸部９Ｂはこの第一の凹部10Ａには落ち込まず第一の凹部10Ａ上に浮上保持されつつ回動通過し得ることとなる。
【００２５】
従って、従来とは異なり開放位置で凹凸係合することはない。
【００２６】
従って、係合付勢機構11による付勢によるカム部９とカム係合部10との回動摩擦を適正となるように設定することで、スムーズな回動となると共に手を放した位置でその回動位置がこの摩擦によって保持されるフリーストップが実現でき、しかも本発明では従来のように開放位置の特定位置で前述のように凹凸係合しないため、自由な開放角度にこのフリーストップによって自在に調整できることとなる。
【００２７】
また、このフリーストップのための摩擦は回動当接面の状態や係合付勢機構11の付勢力等によって調整できるが、回動当接面に第一の凸部９Ａ，第二の凸部９Ｂの双方とも当接するように設計すると、ガタ付等によって一方のみが圧接したりする場合だけでなく、前述のように第二の凸部９Ｂが第二の凹部10Ｂ上に浮上した状態となって必然的に第一の凸部９Ａのみの当接となったりすることで、摩擦状態が変化し、これにより回動トルクが変化してフリーストップが不安定となるおそれもある。
【００２８】
そこで本発明では、更に例えばあえて第二の凸部９Ｂの突出度を第一の凸部９Ａよりもやや小さくして、常に第一の凸部９Ａのみが回動当接面に係合付勢機構11による付勢によって当接するようにして回動トルクの変化をできるだけなくし、常に安定したフリーストップが実現し得るようにしても良い。
【００２９】
【実施例】
本発明の具体的な実施例について図面に基づいて説明する。
【００３０】
本実施例は、図１に示すように、ラップトップタイプのノート型パソコンに適用した場合のもので、キー操作部１を備えた本体部を第一部材２とし、ディスプレイ部３（ＬＣＤ）を備えた開閉蓋部（重合部）を第二部材４とし、この第一部材２と第二部材４とが重合した閉塞状態から第二部材４を１８０度まで自由に開放状態（使用位置）とすることができる枢着構造に本発明のヒンジ装置を適用している（本実施例では左右両側に設けた場合を示している。）。
【００３１】
本実施例では、第一部材２（本体部）に連結する第一連結部５（連結金具）に回り止め状態に回動軸部６を設け、第二部材４（重合部）に連結する第二連結部７（連結金具）に前記回動軸部６が回動自在に挿通・係合するリング状の軸受部８を設け、前記第一連結部５及び前記回動軸部６と共に回動する凸部９Ａを有するカム部９を第一連結部５に設けている。即ち、第一連結部５の回動軸部６に回り止め状態にして軸方向にスライド自在にカム部９を被嵌している。
【００３２】
また、軸受部８と共に回動する凹部10Ａを有するカム係合部10を前記第二連結部７の軸受部８に設けている。即ち、軸受部８に一体形成しても良いが、前記カム部９と対向して係合する側に軸受部８に回り止め状態に係合させると共に、回動軸部６が挿通する軸受孔が連通状態となるようにカム係合部10を設けている。
【００３３】
即ち、回動軸部６と共にカム係合部10に対して相対回動することで凹凸係合するカム部９を係合離反方向にスライド移動自在に設けると共に、このカム部９が係脱するに際して離反方向に移動した際係合方向に付勢する係合付勢機構11を設けている。具体的には、本実施例では、押さえ部12によって回動軸部６に被嵌状態に設けられる複数の皿バネ11Ａによって、回動軸部６に回り止め状態にしてスライド自在に被嵌したカム部９を押圧付勢してカム部９とカム係合部10とを係合付勢し、カム部９とカム係合部10との凹凸係合が脱して回動するときにはこの皿バネ11Ａに抗して回動することとなるように構成している。
【００３４】
従って、本体部２に対して重合部４を回動すると、本体部２に設けた第一連結部５の回動軸部６に対して重合部４に設けた軸受部８が回動する。即ち、回動軸部６に回り止め状態に設けたカム部９に対して、軸受部８に回り止め状態に設けたカム係合部10が回動することとなる。
【００３５】
従って、本体部２に対して重合部４を相対回動して重合状態とすると、回動軸部６を軸として係合付勢機構11の皿バネ11Ａにより押圧付勢されつつカム部９とカム係合部10とは相対回動して、カム部９の第一の凸部９Ａはカム係合部10の第一の凹部10Ａに、カム部９の第二の凸部９Ｂはカム係合部10の第二の凹部10Ｂに夫々凹凸係合途中となる。
【００３６】
従って、係合付勢機構11による押圧付勢とこの凹凸の吸い込み力によるカム係合付勢によって重合方向へ回動付勢（閉塞付勢）が生じ、この係合付勢機構11に付勢された凹凸係合によって、重合状態が係合保持される。
【００３７】
また、本実施例では、前述のように前記カム部９に設けた第一の凸部９Ａが係合する第一の凹部10Ａを前記カム係合部10に設け、この第一の凸部９Ａと第一の凹部10Ａとが前記重合閉塞状態のとき係合途中となるように構成すると共に、この重合閉塞状態のときに同様に係合途中となる第二の凸部９Ｂと第二の凹部10Ｂとを夫々略１８０度対照位置に前記カム部９と前記カム係合部10に設け、前記第二の凸部９Ｂは前記第一の凹部10Ａより回動方向幅を短くし且つ第二の凹部10Ｂは前記第一の凸部９Ａより回動方向幅を短く設定して、前記重合閉塞状態のときには第一，第二の双方の凸部９Ａ，９Ｂと双方の凹部10Ａ，10Ｂとが係合途中となるが、開放方向に回動した際、前記第一の凸部９Ａは前記第二の凹部10Ｂには落ち込まずに通過し得、且つこのとき第二の凸部９Ｂは第一の凹部10Ａ上に前記第一の凸部９Ａが落ち込み係合しないことにより支持され浮上保持されるように構成している。即ち、重合状態では、従来通り二箇所の凹凸部９Ａ，９Ｂ，10Ａ，10Ｂによって凹凸係合途中となるため、例えば極端に凹凸を深くしたり、係合傾斜面の傾斜をきつくしたり、係合付勢機構11によるバネ付勢を強くしなくても十分な係合保持力が生じる。
【００３８】
また、開放回動に際しては、第一の凸部９Ａは第一の凹部10Ａから脱してカム係合部10の当接面に沿って回動し、第二の凸部９Ｂも第二の凹部10Ｂから脱して回動して行くこととなる。そしてこの開放回動に際して重合状態では第二の凸部９Ｂが係合する第二の凹部10Ｂに第一の凸部９Ａが達することになるが、この第二の凹部10Ｂは第一の凸部９Ａに比してその回動方向幅が小さいため、第一の凸部９Ａはこの第二の凹部10Ｂに落ち込み係合することなく、この第二の凹部10Ｂに対して架設状態となりつつ回動通過することとなる。
【００３９】
また、第二の凸部９Ｂは第一の凹部10Ａに達することになるが、第二の凸部９Ｂは、この第一の凸部９Ａが第二の凹部10Ｂに落ち込み係合しないことにより支持されるために（第一の凹部10Ａは第二の凸部９Ｂよりその回動方向幅は広いけれども）、第二の凸部９Ｂはこの第一の凹部10Ａには落ち込まず第一の凹部10Ａ上に浮上保持されつつ回動通過し得ることとなる。
【００４０】
従って、従来とは異なり開放位置で凹凸係合することはない。
【００４１】
従って、係合付勢機構11による付勢によるカム部９とカム係合部10との回動摩擦を適正となるように設定することで、スムーズな回動となると共に手を放した位置でその回動位置がこの摩擦によって保持されるフリーストップが実現でき、しかも従来のように開放位置の特定位置で前述のように凹凸係合しないため、自由な開放角度にこのフリーストップによって自在に調整できることとなる。
【００４２】
また、本実施例では、前記第一の凸部９Ａの突出度は前記第二の凸部９Ｂの突出度より大きく設定している。即ち、あえて第二の凸部９Ｂの突出度を第一の凸部９Ａよりもやや小さくして、常に第一の凸部９Ａのみが回動当接面に係合付勢機構11による付勢によって当接するようにして回動トルクの変化をできるだけなくし、常に安定したフリーストップが実現し得るようにしている。
【００４３】
尚、本発明は、本実施例に限られるものではなく、各構成要件の具体的構成は適宜設計し得るものである。
【００４４】
【発明の効果】
本発明は上述のように構成したから、従来通り十分な閉じ付勢や凹凸係合保持機能が重合時に生じつつ、開放位置では係合保持されず自由に角度調整が行える画期的なヒンジ装置並びにヒンジ装置を用いた電子機器となる。
【００４５】
即ち、重合状態では、一箇所ではなく少なくとも二箇所での凹凸係合となるため、例えば極端に凹凸を深くしたり、係合傾斜面の傾斜をきつくしたり、係合付勢機構によるバネ付勢を強くしなくても十分な係合保持力が生じ、それでありながら開放位置では、従来と異なり凹凸係合しないため自由な開放角度にこのフリーストップによって自在に調整できることとなる画期的なヒンジ装置となる。
【００４６】
また、請求項３記載の発明においては、あえて第二の凸部の突出度を第一の凸部よりも小さくして、常に第一の凸部を回動抵抗を生じる主凸部としてこれのみが回動当接面に係合付勢機構による付勢によって当接するようにしたため、回動トルクの変化がほとんどなく、常に安定したフリーストップが実現し得る一層実用性に秀れた画期的なヒンジ装置となる。
【図面の簡単な説明】
【図１】本実施例の使用状態を示す斜視図である。
【図２】本実施例の説明分解斜視図である。
【図３】本実施例の斜視図である。
【図４】本実施例の断面図である。
【図５】本実施例のカム部の斜視図である。
【図６】本実施例のカム部の断面図である。
【図７】本実施例の（カム部の第一の凸部との関係をも示す）カム係合部の説明斜視図である。
【図８】本実施例の図７に対応させた使用状態の説明側面図である。
【符号の説明】
１操作部
２第一部材（本体部）
３ディスプレイ部
４第二部材（重合部）
５第一連結部（連結金具）
６回動軸部
７第二連結部（連結金具）
８軸受部
９カム部
９Ａ第一の凸部
９Ｂ第二の凸部
10 カム係合部
10Ａ第一の凹部
10Ｂ第二の凹部
11 係合付勢機構[0001]
BACKGROUND OF THE INVENTION
The present invention can open and close a main body part having an operation part and an overlapping part to be an opening / closing lid part having a display part in an electronic device such as a notebook type personal computer, word processor, or mobile phone. The present invention relates to a hinge device used for pivoting and the electronic apparatus.
[0002]
[Prior art and problems to be solved by the invention]
For example, in a personal computer or word processor called a notebook type, an opening / closing lid portion (overlapping portion) provided with a display portion is provided to be able to be opened and closed freely via a hinge device with respect to a main body portion provided with an operation portion. The hinge device is provided with a superposition holding function for maintaining the closed state so that the open / close lid portion does not open without permission when the open / close lid portion is closed to the main body portion.
[0003]
That is, for example, a main body part or a cam part that rotates with the rotation of the superposition part, and a cam that rotates with the rotation of the superposition part or the main part, which are provided so as to be rotatable relative to each other about the rotation shaft part of the hinge device. When the engaging portion is in the closed overlapping state, the overlapping state is engaged and held by the convex portion provided on the cam portion and the concave portion provided on the cam engaging portion. Configure.
[0004]
More specifically, for example, a rotation shaft portion is provided in the first connection portion connected to the main body portion or the superposition portion, and the rotation shaft portion is rotatably related to the second connection portion connected to the superposition portion or the main body portion. And a cam part having a convex part that rotates together with the rotary shaft part, and a cam engaging part having a concave part that rotates together with the bearing part. At least one of the cam portion and cam engaging portion which are provided on the portion and engaged with each other by rotating relative to each other is provided slidably movable in the direction of disengagement along the turning shaft portion, and the cam portion and cam An engagement biasing mechanism is provided by a spring that biases in the engagement direction when moving in the disengagement direction when at least one of the engagement portions is engaged or disengaged, and the overlapping portion is rotated relative to the main body portion so as to be closed. The cam part and the cam engaging part are in the middle of the concave and convex engagement when in the state, The engagement biasing mechanism by the spring is held in the middle of the engagement and is closed and biased to keep the overlapped closed state engaged, and either the cam portion or the cam engagement portion is The cam part is engaged with and disengaged from the cam engaging part by rotating while moving in the separating direction against the engagement biasing mechanism, and the overlapping part can be rotated relative to the main body part as it is. Constitute.
[0005]
By constructing the hinge device in this way, a separate closure holding device is provided and no cumbersome operations such as unlocking it are required, so that it is in a superposed state and automatically cam-engaged (concave / convex engagement) This superposition state is engaged and held by the urging and the spring urging, and can be released by rotating against the closing urging as it is. In other words, in the superposed state, it is always biased in the closing direction (the direction in which it is superposed) and is prevented from opening, and when it is desired to rotate, the cam is engaged if it rotates against this biasing force. Can be released and rotated as it is.
[0006]
However, this conventional cam engagement generally has one cam portion provided with a convex portion at a 180-degree symmetrical position, and the other cam engagement portion provided with a concave portion engaging with this at the same 180-degree symmetrical position. By rotating, the springs are urged by the springs so that they are engaged with each other at the same time.
[0007]
Therefore, the projections and depressions are designed so that the projections and recesses are engaged in the middle of the concave / convex engagement by the spring bias so that sufficient closure bias is generated. When it is rotated in the direction, the projection and recess are completely engaged again (click engagement) when opened, for example, by 160 to 170 degrees before the opening is rotated 180 degrees, and is opened at this position. The state is configured to be engaged and held.
[0008]
For this reason, not only the closing bias is generated but also the engagement is always held at the predetermined position in the open state, so it can be said that it is convenient. There are many cases.
[0009]
In other words, if a free stop state is established in which the cam part and the cam engaging part are stopped at any position during the opening due to the relative rotational friction caused by the spring bias, rather than a specific opening position. In the case where the engagement is not held, the angle of the overlapping portion can be freely adjusted and set by stopping at the desired open position, which is often convenient.
[0010]
In view of this, attention has been paid to an improvement in a configuration in which the closing bias or the uneven engagement holding function occurs as usual in the closed polymerization state, but the uneven engagement holding function does not occur in the open position (no click engagement).
[0011]
However, if one convex portion and one concave portion are formed only on one side of each of the cam portion and the cam engaging portion, and only this is engaged with the concave and convex portions, it is necessary to rotate 360 degrees. Since it does not engage with the concave and convex again, it can be configured so that the click engagement does not occur at the open position.However, in this case, since only the concave and convex engagement is provided at one position, Not enough.
[0012]
Also, in order to increase this blocking biasing force due to uneven engagement only at one location, the release force is increased by increasing the unevenness, tightening the slope, or increasing the spring force. On the contrary, problems such as being considerably necessary and being unable to perform smooth rotation occur.
[0013]
The present invention is an epoch-making solution that can solve the above problems and can adjust the angle freely without engaging and holding in the open position while a sufficient closing bias and uneven engagement and holding function occur during polymerization. It is an object to provide a simple hinge device and an electronic device using the hinge device.
[0014]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0015]
A hinge device that pivotally attaches a first member 2 and a second member 4 and rotates the first member 2 relative to the second member 4 from the overlapped closed state in the opening direction, and a pivot shaft A cam portion 9 that rotates with the rotation of the first member 2 and a cam engagement portion 10 that rotates with the rotation of the second member 4 is provided. and, the convex portion 9A which is provided in the cam portion 9 and the concave portion 10A provided in the cam engagement portion 10 is the rotation position by recess-projection engaging is configured to be engaged with and held, the relative rotation As a result, at least one of the cam portion 9 and the cam engagement portion 10 that engages with the concave and convex portions is provided so as to be slidable in the disengagement direction, and at least one of the cam portion 9 and the cam engagement portion 10 is engaged and disengaged. an engagement biasing mechanism 11 for biasing the Saikakarigo direction moves in separating direction is provided, the second and the first member 2 And the cam portion 9 and the cam engaging portion 10 becomes the middle uneven engagement or engagement upon the wood 4 and polymerized closed by relative rotation, the engagement held by the engagement biasing mechanism 11 Thus, the overlapped closed state is maintained or closed and biased , and either one of the cam portion 9 or the cam engaging portion 10 is rotated while moving in the direction of separation against the engagement biasing mechanism 11. In the hinge device configured to move and disengage the cam portion 9 with respect to the cam engaging portion 10 to move the second member 4 relative to the first member 2, the cam portion When the first concave portion 10A that engages with the first convex portion 9A provided in the cam 9 is provided in the cam engaging portion 10, the first convex portion 9A and the first concave portion 10A are in the overlapped state. It is configured so that it is engaged or in the middle of engagement, and the engagement or engagement is similarly performed in this overlapped state. An intermediate second convex portion 9B and a second concave portion 10B are provided in the cam portion 9 and the cam engaging portion 10, and the second convex portion 9B has a width in the rotational direction than the first concave portion 10A. The second concave portion 10B is made shorter and the rotation direction width is set shorter than that of the first convex portion 9A. When the overlapped state is established, both the first and second convex portions 9A and 9B and both concave portions are formed. 10A and 10B are engaged or in the middle of engagement, respectively, but when rotated in the opening direction, the first convex portion 9A can pass through the second concave portion 10B without falling, and at this time The second convex portion 9B relates to a hinge device characterized in that the second convex portion 9B is supported and floated on the first concave portion 10A when the first convex portion 9A falls and does not engage. .
[0016]
The first member 2 and the second member 4 are pivotally attached, and the first member 2 is a hinge device that rotates relative to the second member 4 from the overlapped closed state in the opening direction. A rotation shaft portion 6 is provided in a first connection portion 5 connected to one member 2, and a bearing portion 8 in which the rotation shaft portion 6 is rotatably engaged with a second connection portion 7 connected to a second member 4. The first connecting part 5 is provided with a cam part 9 having a convex part 9A that rotates together with the rotary shaft part 6 or a cam engaging part 10 having a concave part 10A, and a concave part that rotates together with the bearing part 8. A cam engaging portion 10 having 10A or a cam portion 9 having a convex portion 9A is provided in the second connecting portion 7, and at least one of the cam portion 9 and the cam engaging portion 10 which are engaged with each other by rotating relative to each other. Is provided so as to be slidable in the engagement / disengagement direction, and at least one of the cam portion 9 and the cam engagement portion 10 is engaged / disengaged. An engagement urging mechanism 11 that urges in the engagement direction when moved in the separation direction, and when the first member 2 and the second member 4 are rotated relative to each other to form a superposition blockage state. The cam portion 9 and the cam engagement portion 10 are engaged with each other in the concave-convex manner or in the middle of engagement, and the engagement biasing mechanism 11 holds this engagement so that the overlapped closed state is held or biased. The cam portion 9 is rotated with respect to the cam engaging portion 10 by rotating either one of the cam portion 9 or the cam engaging portion 10 while moving the cam portion 9 or the cam engaging portion 10 against the engagement biasing mechanism 11. In the hinge device configured to engage and disengage the second member 4 relative to the first member 2, the first convex portion 9A provided on the cam portion 9 is engaged. 10A is provided in the cam engaging portion 10, and the first convex portion 9A and the first concave portion 10A are in the overlapped state. The second convex portion 9B and the second concave portion 10B, which are engaged or engaged in the same way in the overlapped state, are connected to the cam portion 9 in the same manner. Provided in the cam engaging portion 10, the second convex portion 9B has a shorter rotational direction width than the first concave portion 10A, and the second concave portion 10B has a rotational direction width smaller than the first convex portion 9A. Is set to be short and the first and second convex portions 9A and 9B and both concave portions 10A and 10B are engaged or in the middle of engagement in the overlapped state, but rotated in the opening direction. At this time, the first convex portion 9A can pass through the second concave portion 10B without dropping, and at this time, the second convex portion 9B has the first convex portion 9A on the first concave portion 10A. A hinge device characterized by being configured to be supported and floated by not being depressed and engaged. It is.
[0017]
Moreover, the protrusion degree of said 1st convex part 9A was set larger than the protrusion degree of said 2nd convex part 9B, It concerns on the hinge apparatus of any one of Claims 1 and 2 characterized by the above-mentioned. It is.
[0018]
In addition, the main body part 2 provided with the operation part 1 and the superposition part 4 provided with the display part 3 are superposed and disposed so as to cover the operation part 1 when the operation part 1 is not operated. A hinge device that pivotally connects the main body portion 2 and the superposition portion 4 so that the operation portion 1 can be exposed by rotating the superposition portion 4 relatively. The said main-body part 2 is the said 1st member 2 or the 2nd member 4, and the said superimposition part 4 is the said 2nd member 4 or the 1st member 2, The said any one of Claims 1-3 The present invention relates to an electronic device using a hinge device, characterized in that the hinge device is used.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention (how to carry out the invention) considered to be suitable will be briefly described with reference to the drawings, showing its effects.
[0020]
For example, when the second member 4 is rotated relative to the first member 2 to be in an overlapped state, the cam portion 9 and the cam engagement are pressed and urged by the engagement urging mechanism 11 about the rotation shaft portion 6. The first convex portion 9A of the cam portion 9 turns into the first concave portion 10A of the cam engaging portion 10 and the second convex portion 9B of the cam portion 9 turns to the cam engaging portion. The ten second concave portions 10B are respectively engaged with concaves and convexes or in the middle of engagement.
[0021]
Accordingly, the pressing force by the engagement biasing mechanism 11 and the cam engagement biasing by the suction force of the unevenness generate a rotation biasing (blocking biasing) in the overlapping direction, and the biasing force is applied to the engagement biasing mechanism 11. The overlapped state is engaged and held by the uneven engagement.
[0022]
At this time, since the concave and convex portions 9A, 9B, 10A, and 10B are in the middle of the concave and convex engagement or in the middle of the concave and convex engagement as usual, for example, the concave and convex portions are extremely deepened, the inclination of the engaging inclined surface is tightened, Even if the spring biasing by the engagement biasing mechanism 11 is not strengthened, a sufficient engagement holding force is generated.
[0023]
Further, when the second member 4 is rotated relative to the first member 2 in the opening direction, one of the cam portion 9 and the cam engaging portion 10 is separated from the biasing force of the engagement biasing mechanism 11. In this case, the first convex portion 9A is released from the first concave portion 10A and rotated along the contact surface of the cam engaging portion 10. The second convex portion 9B is also rotated away from the second concave portion 10B. In this superposition state, the first convex portion 9A reaches the second concave portion 10B with which the second convex portion 9B is engaged, and this second concave portion 10B is the first convex portion. Since the rotation direction width is smaller than that of 9A, the first convex portion 9A does not fall into and engage with the second concave portion 10B, and rotates while being in an erected state with respect to the second concave portion 10B. Will pass.
[0024]
The second convex portion 9B reaches the first concave portion 10A, but the second convex portion 9B is supported by the first convex portion 9A falling into the second concave portion 10B and not engaging. Therefore, the second convex portion 9B does not fall into the first concave portion 10A, although the first concave portion 10A is wider than the second convex portion 9B. It is possible to rotate and pass while being floated up.
[0025]
Therefore, unlike the prior art, there is no uneven engagement at the open position.
[0026]
Therefore, by setting the rotation friction between the cam portion 9 and the cam engagement portion 10 due to the biasing by the engagement biasing mechanism 11 to be appropriate, the rotation is smooth and at the position where the hand is released. A free stop in which the rotational position is held by this friction can be realized, and in the present invention, as described above, the concave / convex engagement is not performed at a specific position of the open position as described above. Can be adjusted.
[0027]
Further, the friction for this free stop can be adjusted by the state of the rotating contact surface, the urging force of the engagement urging mechanism 11, and the like. If both the portions 9B are designed to come into contact with each other, not only the case where only one of them is pressed by backlash or the like, but also the state where the second convex portion 9B floats on the second concave portion 10B as described above. Inevitably, only the first convex portion 9A comes into contact with each other, so that the frictional state changes, which may change the rotational torque and make the free stop unstable.
[0028]
Therefore, in the present invention, for example, the degree of protrusion of the second convex portion 9B is slightly smaller than that of the first convex portion 9A, and only the first convex portion 9A always engages and urges the rotating contact surface. The rotational torque may be changed as little as possible by contacting with the urging force of the mechanism 11 so that a stable free stop can be realized at all times.
[0029]
【Example】
Specific embodiments of the present invention will be described with reference to the drawings.
[0030]
As shown in FIG. 1, the present embodiment is applied to a laptop-type notebook personal computer. The main body having a key operation unit 1 is a first member 2 and a display unit 3 (LCD) is provided. The provided opening / closing lid part (overlapping part) is the second member 4, and the second member 4 is freely opened up to 180 degrees from the closed state where the first member 2 and the second member 4 are overlapped (use position). The hinge device of the present invention is applied to a pivotable structure that can be made (in this embodiment, the case where it is provided on both the left and right sides is shown).
[0031]
In the present embodiment, the first connecting portion 5 (connecting metal fitting) connected to the first member 2 (main body portion) is provided with a rotation shaft portion 6 in a non-rotating state and connected to the second member 4 (overlapping portion). A ring-shaped bearing portion 8 into which the rotation shaft portion 6 is rotatably inserted and engaged is provided in the two connection portions 7 (connection metal fittings), and rotates together with the first connection portion 5 and the rotation shaft portion 6. The first connecting portion 5 is provided with a cam portion 9 having a convex portion 9A. That is, the cam portion 9 is fitted on the rotating shaft portion 6 of the first connecting portion 5 in a non-rotating state so as to be slidable in the axial direction.
[0032]
A cam engaging portion 10 having a recess 10 </ b> A that rotates together with the bearing portion 8 is provided in the bearing portion 8 of the second connecting portion 7. In other words, the bearing portion 8 may be integrally formed, but the bearing portion 8 is engaged with the bearing portion 8 in a non-rotating state on the side facing the cam portion 9 and the rotation shaft portion 6 is inserted therethrough. Is provided with a cam engaging portion 10 so as to be in a communication state.
[0033]
That is, the cam portion 9 that engages with the concave and convex portions by rotating relative to the cam engaging portion 10 together with the rotating shaft portion 6 is slidably movable in the engagement / disengagement direction, and the cam portion 9 is engaged and disengaged. At this time, there is provided an engagement biasing mechanism 11 that biases in the engagement direction when moving in the separation direction. Specifically, in this embodiment, a plurality of disc springs 11A provided in a fitted state on the rotating shaft portion 6 by the pressing portion 12 are slidably fitted on the rotating shaft portion 6 in a non-rotating state. When the cam portion 9 is pressed and biased, the cam portion 9 and the cam engaging portion 10 are engaged and biased, and when the concave and convex engagement between the cam portion 9 and the cam engaging portion 10 is released, the disc spring is rotated. It is configured to rotate against 11A.
[0034]
Therefore, when the overlapping portion 4 is rotated with respect to the main body portion 2, the bearing portion 8 provided in the overlapping portion 4 is rotated with respect to the rotation shaft portion 6 of the first connecting portion 5 provided in the main body portion 2. That is, the cam engaging portion 10 provided in the bearing portion 8 in the non-rotating state rotates with respect to the cam portion 9 provided in the rotating shaft portion 6 in the non-rotating state.
[0035]
Therefore, when the overlapping portion 4 is rotated relative to the main body portion 2 to be in the overlapping state, the cam portion 9 is pressed and biased by the disc spring 11A of the engagement biasing mechanism 11 with the rotating shaft portion 6 as an axis. The first protrusion 9A of the cam part 9 is rotated relative to the cam engagement part 10, and the second protrusion 9B of the cam part 9 is cam engagement. The second concave portion 10B of the joint portion 10 is in the middle of concave and convex engagement.
[0036]
Accordingly, the pressing force by the engagement biasing mechanism 11 and the cam engagement biasing by the suction force of the unevenness generate a rotation biasing (blocking biasing) in the overlapping direction, and the biasing force is applied to the engagement biasing mechanism 11. The overlapped state is engaged and held by the uneven engagement.
[0037]
Further, in the present embodiment, as described above, the first concave portion 10A with which the first convex portion 9A provided in the cam portion 9 is engaged is provided in the cam engaging portion 10, and the first convex portion 9A. And the first concave portion 10A are in the middle of engagement when the polymerization closed state, and the second convex portion 9B and the second concave portion that are also in the middle of engagement when in the polymerization closed state. 10B are provided in the cam portion 9 and the cam engagement portion 10 at a reference position of approximately 180 degrees, respectively, and the second convex portion 9B has a shorter rotational direction width than the first concave portion 10A and the second convex portion 9B. The concave portion 10B is set to have a shorter rotation direction width than the first convex portion 9A, and in the overlapped state, both the first and second convex portions 9A and 9B and both concave portions 10A and 10B are engaged. The first convex portion 9A can pass without falling into the second concave portion 10B when rotated in the opening direction, and The second convex portion 9B is configured so as to be supported floated held by not engaging depression is the first convex portion 9A on the first recess 10A when. That is, in the superposed state, the concave and convex portions 9A, 9B, 10A, and 10B are in the middle of the concave and convex portions as usual, so that, for example, the concave and convex portions are extremely deepened, the inclination of the engaging inclined surface is tightened, Even if the spring biasing by the biasing mechanism 11 is not strengthened, a sufficient engagement holding force is generated.
[0038]
Further, at the time of opening rotation, the first convex portion 9A is detached from the first concave portion 10A and rotated along the contact surface of the cam engaging portion 10, and the second convex portion 9B is also turned into the second concave portion. It will turn away from 10B. In this superposition state, the first convex portion 9A reaches the second concave portion 10B with which the second convex portion 9B is engaged, and this second concave portion 10B is the first convex portion. Since the rotation direction width is smaller than that of 9A, the first convex portion 9A does not fall into and engage with the second concave portion 10B, and rotates while being in an erected state with respect to the second concave portion 10B. Will pass.
[0039]
The second convex portion 9B reaches the first concave portion 10A, but the second convex portion 9B is supported by the first convex portion 9A falling into the second concave portion 10B and not engaging. Therefore, the second convex portion 9B does not fall into the first concave portion 10A, although the first concave portion 10A is wider than the second convex portion 9B. It is possible to rotate and pass while being floated up.
[0040]
Therefore, unlike the prior art, there is no uneven engagement at the open position.
[0041]
Therefore, by setting the rotation friction between the cam portion 9 and the cam engagement portion 10 due to the biasing by the engagement biasing mechanism 11 to be appropriate, the rotation is smooth and at the position where the hand is released. A free stop in which the rotational position is held by this friction can be realized, and since it does not engage in unevenness as described above at a specific position of the open position as in the past, it can be freely adjusted to a free open angle by this free stop It becomes.
[0042]
In the present embodiment, the protrusion degree of the first protrusion 9A is set larger than the protrusion degree of the second protrusion 9B. That is, the degree of protrusion of the second convex portion 9B is slightly smaller than that of the first convex portion 9A, and only the first convex portion 9A is always urged by the engagement urging mechanism 11 on the rotating contact surface. Therefore, the rotation torque can be changed as little as possible so that a stable free stop can always be realized.
[0043]
Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.
[0044]
【The invention's effect】
Since the present invention is configured as described above, a revolutionary hinge device that can be freely adjusted in angle without being held in engagement in the open position while a sufficient closing urging and uneven engagement holding function occurs during polymerization as in the past. In addition, the electronic device uses the hinge device.
[0045]
That is, in the superposed state, the concave / convex engagement is performed in at least two places instead of one, so that, for example, the concave / convex portions are extremely deepened, the inclination of the engaging inclined surface is tightened, or the spring is provided by the engaging biasing mechanism. Sufficient engagement holding force is generated even if the force is not strengthened. However, in the open position, unlike the conventional case, there is no concavo-convex engagement, and this free stop can be freely adjusted by this free stop. It becomes a hinge device.
[0046]
Further, in the invention according to claim 3, the degree of protrusion of the second convex portion is intentionally made smaller than that of the first convex portion, and only the first convex portion is always used as a main convex portion that generates rotational resistance. Since it is abutted against the pivoting contact surface by the biasing force of the engagement biasing mechanism, there is almost no change in the pivoting torque, and a groundbreaking superior in practicality that can always realize a stable free stop. Hinge device.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a use state of the present embodiment.
FIG. 2 is an explanatory exploded perspective view of the present embodiment.
FIG. 3 is a perspective view of the present embodiment.
FIG. 4 is a cross-sectional view of the present example.
FIG. 5 is a perspective view of a cam portion of the present embodiment.
FIG. 6 is a cross-sectional view of a cam portion of the present embodiment.
FIG. 7 is an explanatory perspective view of a cam engaging portion (also showing a relationship with the first convex portion of the cam portion) of the present embodiment.
FIG. 8 is an explanatory side view of the use state corresponding to FIG. 7 of the present embodiment.
[Explanation of symbols]
1 Operation part 2 First member (main part)
3 Display part 4 Second member (Polymerization part)
5 First connecting part (connecting bracket)
6 Rotating shaft 7 Second connecting part (connecting bracket)
8 Bearing portion 9 Cam portion 9A First convex portion 9B Second convex portion
10 Cam engagement part
10A First recess
10B Second recess
11 Engagement bias mechanism

Claims

第一部材と第二部材とを枢着し、この第一部材を第二部材に対して重合閉塞状態から開放方向に相対的に回動せしめるヒンジ装置であって、回動軸部を軸に互いに相対回動自在に設けられる前記第一部材の回動と共に回動するカム部と、前記第二部材の回動と共に回動するカム係合部とを有し、このカム部に設けた凸部とカム係合部に設けた凹部とが凹凸係合することでその回動位置が係合保持されるように構成し、この相対回動することで凹凸係合するカム部，カム係合部の少なくとも一方を係合離反方向にスライド移動自在に設けると共に、このカム部，カム係合部の少なくとも一方が係脱するに際して離反方向に移動した際係合方向に付勢する係合付勢機構を設けて、前記第一部材と前記第二部材とを相対回動して重合閉塞状態とした際にこのカム部とカム係合部とが凹凸係合若しくは係合途中となり、前記係合付勢機構によりこの係合が保持され重合閉塞状態が保持あるいは閉塞付勢されるように構成し、このカム部，カム係合部のいずれか一方を前記係合付勢機構に抗して離反方向に移動させつつ回動させることで前記カム係合部に対してカム部を係脱させ、前記第一部材に対して前記第二部材を相対回動するように構成したヒンジ装置において、前記カム部に設けた第一の凸部が係合する第一の凹部を前記カム係合部に設け、この第一の凸部と第一の凹部とが前記重合閉塞状態のとき係合若しくは係合途中となるように構成すると共に、この重合閉塞状態のときに同様に係合若しくは係合途中となる第二の凸部と第二の凹部を前記カム部と前記カム係合部に設け、前記第二の凸部は前記第一の凹部より回動方向幅を短くし且つ第二の凹部は前記第一の凸部より回動方向幅を短く設定して、前記重合閉塞状態のときには第一，第二の双方の凸部と双方の凹部とが夫々係合若しくは係合途中となるが、開放方向に回動した際、前記第一の凸部は前記第二の凹部には落ち込まずに通過し得、且つこのとき第二の凸部は第一の凹部上に前記第一の凸部が落ち込み係合しないことにより支持され浮上保持されるように構成したことを特徴とするヒンジ装置。 A hinge device that pivotally attaches a first member and a second member and rotates the first member relative to the second member from the overlapped closed state in the opening direction, with the rotation shaft portion as an axis And a cam portion that rotates with the rotation of the first member, and a cam engagement portion that rotates with the rotation of the second member. The cam part engages with the concave and convex portions by engaging the concave and convex portions of the cam engaging portion and the concave portion provided in the cam engaging portion. At least one of the portions is slidably movable in the disengagement direction, and at least one of the cam portion and the cam engagement portion is engaged and urged in the engagement direction when moved in the disengagement direction. A mechanism is provided, and the first member and the second member are rotated relative to each other to form a superposition blockage state. The cam portion and the cam engaging portion are engaged in a concave-convex engagement or in the middle of engagement, and this engagement is held by the engagement biasing mechanism so that the overlapped closed state is held or closed biased. The cam part is engaged with and disengaged from the cam engaging part by rotating one of the cam part and the cam engaging part against the engaging biasing mechanism while moving in the separating direction. In the hinge device configured to relatively rotate the second member with respect to one member, the cam engaging portion is provided with a first concave portion with which the first convex portion provided in the cam portion is engaged, The first convex portion and the first concave portion are configured to be engaged or in the middle of engagement when in the overlapped closed state, and are similarly engaged or engaged during the overlapped closed state. Providing the second convex part and the second concave part in the cam part and the cam engaging part, The second convex portion has a rotational direction width shorter than that of the first concave portion and the second concave portion has a rotational direction width shorter than that of the first convex portion. Both the second convex portion and both concave portions are engaged or in the middle of engagement, but the first convex portion does not fall into the second concave portion when rotating in the opening direction. In this case, the hinge is characterized in that the second convex portion is supported and floated by the first convex portion falling and not engaging with the first concave portion.

第一部材と第二部材とを枢着し、この第一部材を第二部材に対して重合閉塞状態から開放方向に相対的に回動せしめるヒンジ装置であって、第一部材に連結する第一連結部に回動軸部を設け、第二部材に連結する第二連結部に前記回動軸部が回動自在に係合する軸受部を設け、前記第一連結部に前記回動軸部と共に回動する凸部を有するカム部若しくは凹部を有するカム係合部を設け、前記軸受部と共に回動する凹部を有するカム係合部若しくは凸部を有するカム部を前記第二連結部に設け、この相対回動することで凹凸係合するカム部，カム係合部の少なくとも一方を係合離反方向にスライド移動自在に設けると共に、このカム部，カム係合部の少なくとも一方が係脱するに際して離反方向に移動した際係合方向に付勢する係合付勢機構を設けて、前記第一部材と前記第二部材とを相対回動して重合閉塞状態とした際にこのカム部とカム係合部とが凹凸係合若しくは係合途中となり、前記係合付勢機構によりこの係合が保持され重合閉塞状態が保持あるいは閉塞付勢されるように構成し、このカム部，カム係合部のいずれか一方を前記係合付勢機構に抗して離反方向に移動させつつ回動させることで前記カム係合部に対してカム部を係脱させ、前記第一部材に対して前記第二部材を相対回動するように構成したヒンジ装置において、前記カム部に設けた第一の凸部が係合する第一の凹部を前記カム係合部に設け、この第一の凸部と第一の凹部とが前記重合閉塞状態のとき係合若しくは係合途中となるように構成すると共に、この重合閉塞状態のときに同様に係合若しくは係合途中となる第二の凸部と第二の凹部を前記カム部と前記カム係合部に設け、前記第二の凸部は前記第一の凹部より回動方向幅を短くし且つ第二の凹部は前記第一の凸部より回動方向幅を短く設定して、前記重合閉塞状態のときには第一，第二の双方の凸部と双方の凹部とが係合若しくは係合途中となるが、開放方向に回動した際、前記第一の凸部は前記第二の凹部には落ち込まずに通過し得、且つこのとき第二の凸部は第一の凹部上に前記第一の凸部が落ち込み係合しないことにより支持され浮上保持されるように構成したことを特徴とするヒンジ装置。 A hinge device that pivotally attaches a first member and a second member, and rotates the first member relative to the second member from the overlapped closed state in the opening direction. The hinge device is connected to the first member. A rotating shaft portion is provided in one connecting portion, a bearing portion is provided in the second connecting portion connected to the second member so that the rotating shaft portion is rotatably engaged, and the rotating shaft is provided in the first connecting portion. A cam part having a convex part rotating with the part or a cam engaging part having a concave part is provided, and the cam engaging part having a concave part rotating with the bearing part or a cam part having the convex part is used as the second connecting part. At least one of the cam part and the cam engagement part that engages with the concave and convex by rotating relative to each other is provided to be slidable in the disengagement direction, and at least one of the cam part and the cam engagement part is engaged and disengaged. An engagement biasing mechanism that biases in the engagement direction when moving in the separation direction Therefore, when the first member and the second member are rotated relative to each other to be in the overlapped closed state, the cam portion and the cam engagement portion are in the concave / convex engagement or in the middle of engagement, and the engagement bias The engagement is maintained by the mechanism and the overlapped closed state is maintained or closed and biased, and either the cam portion or the cam engaging portion is moved away from the engagement biasing mechanism. In the hinge device configured such that the cam part is engaged with and disengaged from the cam engaging part by rotating while being moved, and the second member is relatively rotated with respect to the first member. A first recess that engages with the first projection provided on the cam engagement portion, and when the first projection and the first recess are in the overlapped state, they are engaged or engaged. And in the same way, when engaged or closed The second convex portion and the second concave portion are provided in the cam portion and the cam engaging portion, the second convex portion has a shorter rotation direction width than the first concave portion, and the second concave portion is The width in the rotational direction is set shorter than that of the first convex portion, and the first and second convex portions and both concave portions are engaged with each other or in the middle of engagement in the overlapped closed state. When the first convex portion is rotated in the direction, the first convex portion can pass through the second concave portion without dropping, and at this time, the second convex portion has the first convex portion on the first concave portion. A hinge device characterized in that the hinge device is configured to be supported and floated by not being depressed and engaged.

前記第一の凸部の突出度は前記第二の凸部の突出度より大きく設定したことを特徴とする請求項１，２のいずれか１項に記載のヒンジ装置。 The hinge device according to any one of claims 1 and 2, wherein the protrusion degree of the first protrusion is set to be larger than the protrusion degree of the second protrusion.

操作部を設けた本体部と、ディスプレイ部を設けた重合部とを、前記操作部を操作しない時にはこの操作部を覆うように重合配設し、この重合した状態から前記重合部を相対的に回動して操作部を露出させることができるように前記本体部と前記重合部とを回動自在に連結するヒンジ装置を有し、このヒンジ装置には、前記本体部を前記第一部材若しくは第二部材とし、前記重合部を前記第二部材若しくは第一部材とした前記請求項１〜３のいずれか１項に記載のヒンジ装置を用いたことを特徴とするヒンジ装置を用いた電子機器。 A main body part provided with an operation part and a superposition part provided with a display part are arranged so as to cover the operation part when the operation part is not operated, and the superposition part is relatively moved from the superposed state. A hinge device that pivotably connects the body portion and the overlapping portion so that the operation portion can be exposed by turning; the hinge device includes the first member or the main body portion; An electronic apparatus using a hinge device, wherein the hinge device according to any one of claims 1 to 3 is used, wherein the hinge device is the second member and the overlapping portion is the second member or the first member. .