JP2004360819A - Hinge device and electronic apparatus using hinge device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge device and an electronic apparatus using the hinge device assuring excellent practical applicability capable of engaging and holding an overlapped part with/on a body part in the convex-concave engaging arrangement in the closing, overlapped condition or the opened condition to be generated, for example by putting the overlapped part in horizontal rotation or rising/falling rotation relative to the body part as conventional, further of hindering the overlapped part and/or the body part from making fine rotation certainly when the closing, overlapped condition or the opened condition is generated, and moreover, heightening the convex-concave engagement holding force of the cam part with the cam engagement part without strengthening the spring energizing force of an engaging energization mechanism. <P>SOLUTION: When the cam part 9 and the cam engagement part 10 are engaged by their projection and recess, a rotary shaft part 6 may make fine rotation owing to a clearance between the cam part 9 installed movably along the rotary shaft part 6 or the cam engagement part 10 and the rotary shaft part 6, and according to this hinge device, the rotary shaft part 6 is hindered from making such fine rotation by the convex-concave engagement of its assist projection 14 and assist recess 15, and the hold of the second member 4 relative to the first member 2 in the specified rotating position is strengthened assistantly. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば第一部材と第二部材との基端部同志を枢着して、双方が重合した閉塞状態から第一部材，第二部材のいずれか一方を所定開放角度（例えば１８０度）水平回動した開放状態に開閉できるあるいは起伏回動して開放状態に開閉できる又は第一部材，第二部材のいずれか一方を自転回動（例えば表裏反対に自転反転）できるヒンジ装置並びにこのヒンジ装置を用いた携帯電話，パソコンなど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或いは開閉式の携帯電話は、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水平回動開閉自在あるいは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回動して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し、また、開放回動時に再び凹凸係合し、所定回動位置（例えば水平回動開閉の場合は、１８０度回動して本体部と重合部とが直線状となる位置）が係合保持されるように構成している。
【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回り止め状態に設け、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固定状態に設け、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し、前記バネによる係合付勢機構によってこの係合が保持され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している。
【０００５】
ところで、このヒンジ装置は、前述のように、例えば重合部を本体部に対して閉塞重合状態若しくは開放状態（重合部と本体部とが直線状となった状態）とした際にはカム部とカム係合部とを凹凸係合保持状態とし、閉塞重合回動若しくは開放回動するときに（重合部を本体部に対して相対回動させるときに）カム係合部に対してカム部を係脱させて重合部を本体部に対して回動できるように、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ている。
【０００６】
これにより、回動軸部に沿ってスライド移動するカム部若しくはカム係合部と、前記回動軸部との間には、前記スライド移動を可能とするためのクリアランスが存在する（このクリアランスがなければ、カム部若しくはカム係合部は回動軸部に沿ってスライド移動し得ない）。
【０００７】
そのため、カム部とカム係合部とが凹凸係合することで、前記カム部とカム係合部とが所定回動位置で係合保持状態となっても、回動軸部がカム部若しくはカム係合部に対して前記クリアランス分、微動回動してしまうこととなり、この回動軸部は、前述のように、第一連結部に対して回り止め状態に設けてあることから、重合部が本体部に対して微動回動してしまうこととなる。
【０００８】
この微動回動は、特に重合部と本体部とを相対水平回動させるタイプの携帯電話においては、閉塞重合状態時や開放状態時に（即ち、カム部とカム係合部の凹凸係合時に）、本体部に対して重合部を水平方向に微動することとなり、非常に気になる。
【０００９】
本発明は、これまで通り、例えば重合部を本体部に対して水平回動あるいは起伏回動して閉塞重合状態若しくは開放状態で凹凸係合保持できることは勿論、閉塞重合状態若しくは開放状態とした際に、重合部や本体部が微動回動することを確実に阻止することができ、その上、係合付勢機構のバネ付勢力を強化することなく、カム部とカム係合部との凹凸係合保持力を高めることができる極めて実用性に秀れた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。
【００１０】
【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。
【００１１】
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前記回動軸部６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とを相対回動して所定回動位置でこのカム部９とカム係合部１０とが係合付勢されて凹凸係合し、前記係合付勢機構１１によりこの係合が保持されるあるいは係合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と前記カム係合部１０とが凹凸係合した際、前記第一連結部５若しくは第一連結部５に対して固定状態に設けた部材に設けた補助凸部１４又は補助凹部１５と、前記第二連結部７若しくは第二連結部７に対して固定状態に設けた補助凹部１５又は補助凸部１４とが凹凸係合する凹凸係合補助機構を設けて、前記カム部９と前記カム係合部１０とが凹凸係合した状態で、前記回動軸部６に沿って移動自在に設けた前記カム部９若しくはカム係合部１０との間のクリアランスによって回動軸部６が微動回動し得ることを、前記補助凸部１４と前記補助凹部１５との凹凸係合によって阻止して、前記所定回動位置での前記第一部材２に対する前記第二部材４の保持を補助強化す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。
【００１２】
また、例えば、前記第一連結部５若しくはこの第一連結部５に固定する補助凹凸部形成部材に前記補助凸部１４又は前記補助凹部１５を設け、前記第二連結部７若しくはこの第二連結部７に固定する前記カム係合部１０あるいはカム部９若しくは第二連結部７に固定する補助凹凸部形成部材１７に前記補助凹部１５又は前記補助凸部１４を設けたことを特徴とする請求項１記載のヒンジ装置に係るものである。
【００１３】
また、例えば、操作部１を設けた本体部と、ディスプレイ部３を設けた重合部とを、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を相対的に水平回動若しくは起伏回動して操作部１を露出させることができるように、若しくは重合部を表裏反転自在となるべく自転回動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２若しくは第二部材４とし、前記重合部を前記第二部材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。
【００１４】
【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。
【００１５】
第一部材２を第二部材４に対して相対回動すると、第一部材２に連結する第一連結部５に対して第二部材４に連結する第二連結部７が相対回動し、これに伴い、第一連結部５に設けた回動軸部６と共に回動するように前記第一連結部５に設けたカム部９の凸部９Ａ若しくはカム係合部１０の凹部１０Ａと、第二連結部７に設けた軸受部８と共に回動するように前記第二連結部７に設けたカム係合部１０の凹部１０Ａ若しくはカム部９の凸部９Ａとが相対回動して所定回動位置において凹凸係合することとなる。
【００１６】
この際、第一連結部５若しくは第一連結部５に対して固定状態に設けた部材に設けた補助凸部１４又は補助凹部１５と、前記第二連結部７若しくは第二連結部７に対して固定状態に設けた補助凹部１５又は補助凸部１４とが凹凸係合する。
【００１７】
即ち、第一部材２と第二部材４とは、所定回動位置において、回動軸部６に沿って係合離反方向にスライド移動自在に設けたカム部９の凸部９Ａ若しくはスライド係合部１０の凹部１０Ａと第二連結部７に設けた軸受部８と共に回動するカム係合部１０の凹部１０Ａ若しくはカム部９の凸部９Ａとの凹凸係合と、第一連結部５若しくは第一連結部５に対して固定状態に設けた部材に設けた補助凸部１４又は補助凹部１５と第二連結部７若しくは第二連結部７に対して固定状態に設けた補助凹部１５又は補助凸部１４との凹凸係合とにより、凹凸係合保持されることとなる。
【００１８】
従って、回動軸部６とカム部９若しくはカム係合部１０との間に、カム部９とカム係合部１０との凹凸係合を実現するためのクリアランス、即ち、回動軸部６に沿ってカム部９若しくはカム係合部１０をスライド移動可能とするためのクリアランスが存在していても、カム部９の凸部９Ａとカム係合部１０の凹部１０Ａとが凹凸係合した際に、第一連結部５と第二連結部７とを回動軸部６を介さずに凹凸係合補助機構により凹凸係合保持することで、即ち、例えば第一連結部５に固定状態に設けた補助凸部１４又は補助凹部１５と、例えば第二連結部７に固定状態に設けた補助凹部１５又は補助凸部１４とを凹凸係合保持することで、前記クリアランスによって発生する微動回動を、この補助凸部１４と補助凹部１５との凹凸係合によって阻止することができる。
【００１９】
また、第一部材２と第二部材４とを、カム部９とカム係合部１０との凹凸係合及び補助凸部１４と補助凹部１５との凹凸係合の二か所の凹凸係合によって係合保持することで、凹凸係合を一カ所とした場合に比して、その係合保持力を補強強化することができ、よって、例えば係合付勢機構１１による付勢力を弱めに設定しても十分な凹凸係合保持力をもって閉塞重合状態及び開放状態を実現することができる。
【００２０】
【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。
【００２１】
本実施例は、図１，図９，図１０に示すように、重合コンパクト化の図れる携帯電話に本発明を適用したもので、回路基板，電源等の電子部品をケースに内装した板状の本体部４を第二部材４とし、この本体部４の上面側に数字キーやファンクションキーなどを配列したキーボード機能を果たす操作部１を設け、この本体部４に重合して操作部１を覆う略同形の板状の重合部２を第一部材２とし、重合部２と本体部４とを略水平回動自在にヒンジ装置Ｈにより軸着連結した構成としている。
【００２２】
この重合部２の上面側には予め設定した画面や前記操作部１の操作や着信等により所定の表示がなされる液晶パネルなどのディスプレイ部３を設けている。
【００２３】
この重合部２と本体部４との連結は、双方の端部同志の重合部分を、上下方向に配される回動軸部６を有するヒンジ装置Ｈにより連結し、この回動軸部６を回動支軸として略水平方向に回動自在に連結している。
【００２４】
また、図９に示すように、重合部２も本体部４もヒンジ装置Ｈを組み付ける端部重合部分に対してやや立ち上がり傾斜状態（本体部分を水平に配すれば端部がやや立ち上がり傾斜状態）となるように形成し、重合した状態から重合部２を略１８０度水平回動して重合部２と本体部４とが一直線状に連設した状態とした際、重合部２のディスプレイ部３が本体部４に対してやや立ち起こされたように傾斜状態となり易いように構成している。
【００２５】
次に本実施例のヒンジ装置Ｈについて説明する。
【００２６】
本実施例では、図２〜図４に示すように、板材をＵ字状に折り返した本体部４（第二部材４）に連結する第二連結部７となる第二取付ベース７の下側片の両側部をビスなどで止着して本体部４の端部に取付固定し、この折り返し状の取付ベース７の上側片中央に軸受部８を設け、一方中央に回動軸部６を回り止め固定した重合部２（第一部材２）に連結する第一連結部５となる第一取付ベース５を重合部２の端部に取付固定し、前記軸受部８に前記回動軸部６を挿通係合連結して、この上下方向に配される回動軸部６を回動支軸として本体部４に対して重合部２を略水平回動自在に連結する構成としている。
【００２７】
本実施例ではこのように構成することで軸受部８の形成向き（回動軸部６の軸方向）を回動がスムーズとなるように前記Ｕ字状に折り返した第二取付ベース７の折り返し加減の設定により調整することができ、また、たとえ軸受部８と回動軸部６との向きに多少の誤差があってもこの折り返し状の第二取付ベース７のたわみにより誤差が吸収されて軸着できる構成としている。
【００２８】
このように、第二取付ベース７を折り返し板材で形成し、この一側片に軸受部８を設けたから、たとえ回動軸部６に負荷が加わってもこの折り返し構造によりこの負荷を弾圧吸収でき、非常に回動がスムーズとなり耐久性にも秀れた構成となる。
【００２９】
前記第一取付ベース５に前記回動軸部６と共に回動する凸部を回動する凸部９Ａを有するカム部９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を前記第二取付ベース７に設けて、第一取付ベース５（第一部材２）と第二取付ベース７（第二部材４）とを相対回動して所定回動位置でこのカム部９とカム係合部１０とがヒンジ装置Ｈに設けた係合付勢機構１１により係合付勢されて凹凸係合若しくは係合途中となるように構成している。
【００３０】
具体的には、第一取付ベース５に回り止め状態に回動軸部６を設け、この回動軸部６を第二取付ベース７に設けた軸受部８となる取付孔８に挿通した状態で、この回動軸部６に凸部９Ａを設けたカム部９を回り止め状態、且つ、軸方向に所定長さ離反移動自在に設けた構成としている。
【００３１】
そして、回動軸部６の端部には、カム部６を前記係合付勢機構１１を構成する皿バネ１１Ａでカム係合部１０に向けて付勢した状態（第一取付ベース５方向に付勢した構成）で、前記回動軸部６に取り付けるためのストッパー１８を設けた構成としている。
【００３２】
第二取付ベース７とカム部９との間には、前記カム部９の凸部９Ａが係合する凹部１０Ａを有したカム係合部１０を配設した構成としている。
【００３３】
即ち、カム係合部１０は、第一取付ベース５に向けて第二取付ベース７の軸受孔８Ａに突き当たり係止固定して配設した構成としている。
【００３４】
具体的には、このカム係合部１０は、図５に示すように、中央に回動軸部６を回動自在に挿通する挿通孔１０Ｂを有したリング状部材で構成し、このカム係合部１０のカム部９との対向面、即ち、このカム係合部１０の第一取付ベース５とは反対側の面に凹部１０Ａを一カ所若しくは複数箇所に形成した構成としている。
【００３５】
更に具体的には、図５，図６に示すように、カム係合部１０のカム部９配設側の挿通孔１０Ｂ孔縁部に段部２５を形成し、この段部２５により形成された段面部２５Ａの対向位置に凹部１０Ａを設けた構成としている。
【００３６】
即ち、前記段部２５にカム部９を係合し、カム部９とカム係合部１０とが相対回動することにより、凸部９Ａと凹部１０Ａとが抜脱し得るように構成している。
【００３７】
また、前記凹部１０外部位、即ち、本体部４に対して重合部２を開放回動及び閉塞重合回動させるときのカム部９の凸部９Ａが移動する、凹部１０Ａ外の凸部移動面（即ち、本体部４に対して重合部２を開放回動若しくは閉塞回動した際に凸部９Ａが移動する移動面。以下、回動移動面２６という。）を凹設した構成としている。
【００３８】
具体的には、図７に示すように、凹部１０Ａの縁部から緩やかに凹状に傾斜する傾斜面を形成することで、前記回動移動面２６を凹設した構成としている。
【００３９】
前記回動移動面２６を緩やかに傾斜した傾斜面としたのは、本体部４に対して回動する重合部２の回動抵抗を減じせしめつつスムーズな回動を実現するためであり、仮に、この回動移動面２６を凹部１０Ａの縁部に対し急激に傾斜した傾斜面とすると、凸部９Ａが凹部１０Ａから抜脱した瞬間に、この凸部９Ａが皿バネ１１Ａの付勢力によってカム係合部１０側へ飛び跳ねたりすることで、スムーズな回動を実現しにくくなってしまうからである。
【００４０】
また、回動移動面２６の凹み度合いは、図８に示すように、皿バネ１１Ａにより回動移動面２６に向けて押圧付勢される前記凸部９Ａのこの押圧強さを減じるか若しくは略零とし得る凹み度合いに設定した構成としている。
【００４１】
即ち、図７に示すように、凸部９Ａが凹部１０Ａの縁部（即ち、凸部９Ａ移動方向における凹部１０Ａの縁部）を乗り越えると緩やかに凹状に傾斜して、これに伴い凸部９Ａは皿バネ１１Ａが付勢する方向へ凹み分退避し、この凹み分退避した状態で所定長さ移動し、凸部９Ａが前記凹部１０Ａに対向する別の凹部１０Ａに近づくにつれて緩やかに凸状に傾斜し、前記対向する凹部１０Ａの縁部を乗り越えたところで、凸部９Ａが再び凹部１０Ａに係合し得るように、前記カム係合部１０Ａを構成している。
【００４２】
そして、回動軸部６に対して軸方向に所定長さスライド移動としたカム部９を、皿バネ１１Ａによってカム係合部１０に係合付勢してあることで、開放状態時及び閉塞重合状態時には、カム部９の凸部９Ａがカム係合部１０の凹部１０Ａに係合し、開放回動時及び閉塞重合回動時に、凸部９Ａが、凹部１０Ａの縁部を乗り上がって前記凹設した回動移動面２６を移動し得るように構成している。
【００４３】
これにより、重合部２が本体部４の操作部１を覆った閉塞重合状態から、この重合部２を横押しするなどして本体部４に対して開放回動すると、凹部１０Ａにカム係合した凸部９Ａが前記凹部１０Ａから抜脱してこの凹部１０Ａの縁部を乗り越え、縁部を乗り越えると、凸部９Ａが回動移動面２６内を移動することとなる。
【００４４】
即ち、カム部９がカム係合部１０に対して皿バネ１１Ａによって付勢されていても、凸部９Ａが回動移動面２６に弱い力で接した状態若しくは接しない状態で移動することで、重合部２が回動する際にほとんど回動抵抗を生じず、且つ、スムーズな回動を実現することができる。
【００４５】
従って、特に本実施例で適用したような、水平回動型の携帯電話などの電子機器にとっては、はじめだけ、少し力を入れて重合部２を横押ししてやるだけで、重合部２がスムーズに本体部４に対して回動できることとなり、重合部２をスムーズに回動でき、且つ、クリック係合もしっかりと実現できるように構成したが故に、重合部２を横押しする使用者の力の入れ具合で（即ち一押しするだけで）、重合部２を例えば閉塞重合状態から１８０度回転させて開放状態とすることも容易に実現することができることとなるため、非常に最適となる。
【００４６】
また、本実施例は、カム係合部１０を一体成形により形成した構成としている。
【００４７】
即ち、カム係合部１０に設けた凹部１０Ａ及び凹み状に形成した回動移動面２６を一体成形により形成した構成としている。
【００４８】
また、本実施例では、カム係合部１０を金属により一体成形した構成としている。
【００４９】
尚、本実施例では、カム係合部１０を金属により一体成形した構成としたが、合成樹脂により一体成形して形成しても良い。
【００５０】
従って、本体部４に対して重合部２をスムーズに回動できるという本実施例の秀れた効果を、単にカム係合部１０を一体成形によって前記回動移動面２６が凹状となるように形成するだけで簡易に実現することができる。
【００５１】
尚、本実施例では、凹状の回動移動面２６を有するカム係合部１０を一体成形によって形成した構成としたが、カム係合部１０の回動移動面２６を凹状に形成しない状態で前記カム係合部１０を一体成形し、この一体成形の後、切削加工などにより、凸部移動面を凹状に形成して前記回動移動面２６を形成しても良い。
【００５２】
本実施例では、本体部４の操作部１を重合部２で覆った閉塞重合状態、及び、重合部２を水平回動させて該重合部２と本体部４とが直線状となる開放状態とした際に、本体部４と重合部２との微動回動を阻止するための凹凸係合補助機構２７を設けた構成としている。
【００５３】
この微動回動は、カム部９とカム係合部１０とのクリック係合（カム係合係止）を実現するために、カム部９を回動軸部６に沿って所定長さスライド移動し得るように構成したことでカム部９と回動軸部６との間に生じるクリアランスによって発生するもので、特に本実施例で採用したような、重合部２を本体部４に対して水平回動するタイプの携帯電話にとっては、重合部２が本体部４を覆った閉塞重合状態及び重合部２と本体部４とが直線状となった開放状態とした際に微動することとなり、非常に気になる。
【００５４】
即ち、例えば重合部を本体部に対して起伏回動させるタイプの携帯電話は、閉塞状態とした際には閉塞付勢されている（カム係合途中となっている）ために微動回動することはないが、本実施例の場合には、重合部２と本体部４とを閉塞重合状態若しくは開放状態とした際には、カム部９の凸部９Ａとカム係合部１０の凹部１０Ａとがカム係合（クリック係合）して係止するため、即ち、閉じ付勢されてはいないため、前記クリアランスにより、微動回動が発生してしまう。
【００５５】
そのため、この微動回動を防止すべく、前記凹凸係合補助機構２７は、以下のように構成している。
【００５６】
即ち、前記凹凸係合補助機構２７は、前記カム部９と前記カム係合部１０とが凹凸係合した際、前記第一連結部５若しくは第一連結部５に対して固定状態に設けた部材に設けた補助凸部１４又は補助凹部１５と、前記第二連結部７若しくは第二連結部７に対して固定状態に設けた補助凹部１５又は補助凸部１４とが凹凸係合するように構成し、前記カム部９と前記カム係合部１０とが凹凸係合した状態で、前記回動軸部６に沿って移動自在に設けた前記カム部９若しくはカム係合部１０との間のクリアランスによって回動軸部６が微動回動し得ることを、前記補助凸部１４と前記補助凹部１５との凹凸係合によって阻止して、前記所定回動位置での前記第一部材２に対する前記第二部材４の保持を補助強化するように構成している。
【００５７】
具体的には、前記第一連結部５若しくはこの第一連結部５に固定する補助凹凸部形成部材に前記補助凸部１４又は前記補助凹部１５を設け、前記第二連結部７若しくはこの第二連結部７に固定する前記カム係合部１０あるいはカム部９若しくは第二連結部７に固定する補助凹凸部形成部材１７に前記補助凹部１５又は前記補助凸部１４を設けた構成としている。
【００５８】
更に具体的には、操作部１を設けた第二部材４となる本体部４と、ディスプレイ部３を設けた第一部材２となる重合部２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２を相対的に水平回動若しくは起伏回動して操作部１を露出させることができるように、若しくは重合部２を表裏反転自在となるべく自転回動できるように前記本体部４と前記重合部２とを回動自在に連結するように構成している。
【００５９】
本実施例では、第一連結部５となる第一取付ベース５に前記補助凹部１５を設け、第一取付ベース５と第二取付ベース７との間にして第二取付ベース７に固定状態に設けた前記補助凹凸係合部材１７となる取付体２２に前記補助凸部１４を設けた構成としている。
【００６０】
即ち、補助凹部１５は、重合部２が本体部４の操作部１を覆う閉塞重合状態及び本体部４に対して重合部２が直線状となる開放状態において、前記補助凸部１４をカム係合係止する係止補助凹部１５Ａと、重合部２が本体部４に対して水平方向に回動動作する際、即ち、閉塞重合回動の際及び開放回動の際に補助凸部１４が移動する回動補助凹部１５Ｂとから成る構成としている。
【００６１】
また、係止補助凹部１５Ａは、カム部９の凸部９Ａとカム係合部１０の凹部１０Ａとがカム係合したときに、前記補助凸部１４をカム係合し得る位置に設けた構成としている。
【００６２】
これにより、カム部９の凸部９Ａとカム係合部１０の凹部１０Ａとをカム係合係止した際に（即ち、重合部２を本体部４に対して閉塞重合状態若しくは直線状の開放状態とした際に）、このカム係合を可能とするためにカム部９を回動軸部６に対して長さ方向に所定長さスライド移動可能に設けることで生じた回動軸部６とカム部９の間のクリアランスにより発生するがたつき、即ち、重合部２を本体部４に対して閉塞重合状態若しくは開放状態とした際に発生する微動回動を阻止することができる。
【００６３】
即ち、カム部９の凸部９Ａがカム係合部１０の凹部１０Ａにカム係合係止しても、このカム係合係止したカム部９に対して回動軸部６が、前記クリアランスにより、微動回動してしまうことで本体部４に対して第一取付ベース５（重合部２）が微動回動してしまうこととなるが、この際、重合部２に固定した第一取付ベース５に設けた係止補助凹部１５Ａに、本体部４に固定した第二取付ベース７に固定状態に設けた補助凸部１４をカム係合係止するように構成することで、重合部２が本体部４に対して微動回動することを阻止することができる。
【００６４】
また、閉塞重合状態と開放状態のときには、カム部９の凸部９Ａとカム係合部１０の凹部１０Ａとのカム係合（クリック係合）と、補助凸部１４と補助凹部１５とのカム係合との二つのカム係合により、重合部２と本体部４とがクリック係合することになるため、例えばカム部９とカム係合部１０とがカム係合した状態を維持するための係合付勢機構１１の係合付勢力を小さく設定しても、十分なカム係合力を発揮することができる。
【００６５】
即ち、カム係合部を二か所に設けたことで、前記微動回動を阻止できる上に小さい係合付勢力で良好なカム係合係止を実現することができる。
【００６６】
また、本実施例では、図４に示すように、前記係止補助凹部１５Ａを対向位置に設け、この係止補助凹部１５Ａにカム係合し得る取付体２２の上面所定位置に前記補助凸部１４を設けた構成としている。
【００６７】
具体的には、第一取付ベース５における第二取付ベース７配設側の（下方面の）の前記回動軸部６を回り止め配設する回動軸取付孔２８の周囲に凹条の回動補助凹部１５Ｂを、係止補助凹部１５Ａを介して断続的に設けて前記補助凹部１５を構成している。
【００６８】
これにより、本体部４に対する重合部２の回動動作をスムーズに行え、また、カム部９とカム係合部１０とをカム係合係止した際に微動回動を阻止しつつ前記カム係合係止状態を実現することができる。
【００６９】
尚、補助凸部１４を設けた取付体２２は、後述の回動ストッパー機構１３も構成している。
【００７０】
第一取付ベース５と第二取付ベース７との間には、重合部２と本体部４との相対回動時に過剰な回動を阻止するための回動ストッパー機構１３を設けた構成としている。
【００７１】
この回動ストッパー機構１３は、第一取付ベース５の端部に突設したストッパー部１３Ａと、第一取付ベース５と第二取付ベース７との間に配設されて前記回動軸部６に対して回動自在であり前記ストッパー部１３Ａの回動を当接阻止するストッパー係止部１３Ｂとから成る構成としている。
【００７２】
具体的には、第二取付ベース７と第一取付ベース５との間にして軸受孔８Ａの孔縁部上には、前記ストッパー部１３Ａが第二取付ベース７の孔縁部に当接することを防止するカラー体２０を配設し、このカラー体２０上に、端部にストッパー係止部１３Ｂを設けたリング状のストッパー係止体２１を回動軸部６に対して回動自在に配設し、このストッパー係止体２１と第一取付ベース５との間には、前記ストッパー体２１を、カム係合部１０の上面部に所定角度回動可能に取り付ける取付体２２を配設して前記回動ストッパー機構１３を構成している。
【００７３】
即ち、第二取付ベース７に対して突き当たり係止配設したカム係合部１０の上面部に前記ストッパー係止体２１を係合配設し得る段部２３を形成し、この段部２３にストッパー係止体２１を載置係合し、この載置係合したストッパー係止体２１を取付体２２によりカム係合部１０に取付係合した構成としている。
【００７４】
また、カム係合部１０には、ストッパー部１３Ａを当接係止するストッパー係止部１３Ｂを所定角度回動自在とし、ストッパー係止部１３Ｂによるストッパー部１３Ａの当接係止位置を変更調整し得る係止位置調整部２４を設けた構成としている。
【００７５】
具体的には、カム係合部１０の段部２３形成側の上縁部所定位置に、所定長さの切欠部２４Ａを設けて係止位置調整部２４を構成している。
【００７６】
即ち、ストッパー係止体２１は、ストッパー係止部１３Ｂが係止位置調整部２４に係合した状態で前記段部２３に配設され、第一取付ベース５の回動に伴い回動するストッパー部１３Ａを係止するストッパー係止部１３Ｂを、前記切欠部２４Ａの形成範囲において移動可能に構成している。
【００７７】
本実施例では、重合部２と共に回動するストッパー部１３Ａを当接係止するストッパー係止部１３Ｂを、本体部４に固定した状態としないことで、このストッパー部１３Ａが３６０度回動しようとした時に、ストッパー係止部１３Ｂの形成巾分、ストッパー部１３Ａの回動が阻止されるような事態を回避することができる。
【００７８】
即ち、仮にストッパー係止部１３Ｂを本体部４に対して固定状態に設ければ、このストッパー係止部１３Ｂの一方側から他方側までがストッパー部１３Ａの回動可能範囲となるため、ストッパー係止部１３Ｂの形成厚さ分、ストッパー部１３Ａの回動が阻止されて３６０度の回動は不可能となる。
【００７９】
この点、本実施例では、ストッパー部１３Ａを係止するストッパー係止部１３Ｂを、所定角度（即ち、本体部４に対して重合部２を３６０度回動させ得る角度）左右方向に移動できるように構成したため、ストッパー係止部１３Ｂの一方側にストッパー部１３Ａが当接した状態から、ストッパー部１３Ａを回動してストッパー係止部１３Ｂの他方側に当接した際、このストッパー係止部１３Ｂは前記当接部位では係止せず、更に切欠部２４Ａ分押動されて、本体部４に対して重合部２が３６０度回動した時点で係止するため、本体部４に対して重合部２を確実に３６０度回転させることができ、よって、例えば重合部２が本体部４に閉塞重合した状態から、左右どちらの方向からでも、重合部２を略水平に回動させて重合部２と本体部４とが略直線状となる開放状態にできることとなる。
【００８０】
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。
【００８１】
【発明の効果】
本発明は上述のように構成したから、これまで通り、例えば重合部を本体部に対して水平回動あるいは起伏回動して閉塞重合状態若しくは開放状態で凹凸係合保持できることは勿論、閉塞重合状態若しくは開放状態とした際に、重合部や本体部が微動回動することを確実に阻止することができ、その上、係合付勢機構のバネ付勢力を強化することなく、カム部とカム係合部との凹凸係合保持力を高めることができる極めて実用性に秀れた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。
【００８２】
即ち、回動軸部とカム部若しくはカム係合部との間に、カム部とカム係合部との凹凸係合を実現するためのクリアランス、即ち、回動軸部に沿ってカム部若しくはカム係合部をスライド移動可能とするためのクリアランスが存在していても、カム部の凸部とカム係合部の凹部とが凹凸係合した際に、第一連結部と第二連結部とを回動軸部を介さずに凹凸係合補助機構により凹凸係合保持することで、即ち、例えば第一連結部に固定状態に設けた補助凸部又は補助凹部と、例えば第二連結部に固定状態に設けた補助凹部又は補助凸部とを凹凸係合保持することで、前記クリアランスによって発生する微動回動を、この補助凸部と補助凹部との凹凸係合によって阻止することができる極めて実用性に秀れた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。
【００８３】
また、第一部材と第二部材とを、カム部とカム係合部との凹凸係合及び補助凸部と補助凹部との凹凸係合の二か所の凹凸係合によって係合保持することで、凹凸係合を一カ所とした場合に比して、その係合保持力を強化することができ、よって、例えば係合付勢機構による付勢力を弱めに設定しても十分な凹凸係合保持力をもって閉塞重合状態及び開放状態を実現することができる極めて実用性に秀れた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。
【００８４】
また、請求項２，３記載の発明においては、上記作用効果を確実且つ良好に発揮することができる極めて実用性に秀れた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。
【図面の簡単な説明】
【図１】本実施例の使用状態を示す説明斜視図である。
【図２】本実施例のヒンジ装置を示す説明斜視図である。
【図３】本実施例のヒンジ装置を示す説明分解斜視図である。
【図４】本実施例のヒンジ装置を示す説明分解斜視図である。
【図５】本実施例のカム部とカム係合部とを示す説明斜視図である。
【図６】本実施例のカム係合部を示す説明図である。
【図７】本実施例のカム部とカム係合部との相対回動による凸部の移動状態を示す説明図である。
【図８】本実施例のヒンジ装置を示す説明正断面図及び説明側断面図である。
【図９】本実施例の本体部に対する重合部を回動動作した際のヒンジ装置の状態を示す説明図である。
【図１０】本実施例の本体部に対する重合部の回動動作に伴うストッパー機構を示す説明図である。
【図１１】本実施例の微動回動阻止機構を示す説明斜視図である。
【図１２】本実施例の補助凸部と補助凹部とが係合した状態を示す説明図である。
【図１３】本実施例の回動軸部に対してカム部をスライド移動可能に設けることによりクリアランスが生じることを示す説明図である。
【符号の説明】
１ 操作部
２ 第一部材
３ ディスプレイ部
４ 第二部材
５ 第一連結部
６ 回動軸部
７ 第二連結部
８ 軸受部
９ カム部
９Ａ 凸部
１０ カム係合部
１０Ａ 凹部
１１ 係合付勢機構
１４ 補助凸部
１５ 補助凹部
１７ 補助凹凸部形成部材[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, for example, one of the first member and the second member is opened at a predetermined opening angle (for example, 180 degrees) from a closed state in which both are overlapped by pivotally connecting the base ends of the first member and the second member. A) a hinge device which can be opened and closed in an open state which is horizontally rotated, or which can be opened and closed in an up-and-down rotation, or which is capable of rotating one of a first member and a second member (for example, rotating in the opposite direction); The present invention relates to an electronic device such as a mobile phone and a personal computer using a hinge device.
[0002]
Problems to be solved by the prior art and the invention
For example, in a personal computer, a word processor or an open / close type mobile phone called a notebook type, an open / close lid (overlapping unit) having a display unit is horizontally rotated via a hinge device with respect to a main unit having an operation unit. Although it is provided to be openable and closable or openable and closable, the closed state is set so that the openable cover is not rotated and opened without permission in the closed overlapped state where the openable cover is closed to the main body. A hinge holding device is provided with a function to maintain the overlap.
[0003]
That is, for example, a cam portion that is rotatable relative to each other around a rotation shaft portion of a hinge device and that rotates with the rotation of the main body portion or the overlap portion, and a cam that rotates with the rotation of the overlap portion or the main body portion An engagement portion, and when a closed overlap state is established, the projection portion provided on the cam portion and the recess portion provided on the cam engagement portion are engaged with the concave and convex portions so that this overlap state is engaged and held. In addition, the concave and convex engagement is performed again at the time of opening rotation, and a predetermined rotation position (for example, in the case of horizontal rotation opening and closing, a position where the main body portion and the overlapping portion are linearly rotated by 180 degrees) is set at a predetermined position. It is configured to be engaged and held.
[0004]
More specifically, for example, a rotation shaft portion is provided in a first connection portion connected to the main body portion or the overlapping portion in a non-rotating state, and the rotation shaft portion is rotated around a second connection portion connected to the polymerization portion or the main body portion. A cam portion having a convex portion that rotates together with the rotating shaft portion is provided on the first connecting portion, and a cam engaging portion having a concave portion that rotates together with the bearing portion is provided. At least one of the cam portion and the cam engaging portion, which are engaged and recessed by the relative rotation, are provided slidably in the engaging and disengaging direction along the rotation shaft portion. In addition, an engagement urging mechanism is provided by a spring that urges in the engaging direction when at least one of the cam portion and the cam engaging portion is disengaged and moves in the separating direction, so that the overlapping portion is formed on the main body portion. The cam portion and the cam engagement portion are relatively Are engaged with each other, and the engagement is held by the engagement urging mechanism by the spring so that the overlapped closed state is engaged and held. Either the cam portion or the cam engagement portion is engaged. By rotating while moving in the separating direction against the engagement urging mechanism, the cam portion is disengaged from the cam engaging portion, and the overlapping portion can be relatively rotated with respect to the main body portion as it is. Is configured.
[0005]
By the way, as described above, when the overlapping portion is in a closed overlapping state or an open state (a state in which the overlapping portion and the main body portion are linear) with respect to the main body portion, as described above, the cam portion is connected to the cam portion. The cam engaging portion is brought into the concave / convex engagement holding state, and the cam portion is moved relative to the cam engaging portion when the closed overlapping rotation or the opening rotation is performed (when the overlapping portion is relatively rotated with respect to the main body portion). At least one of the cam portion and the cam engaging portion is provided so as to be slidable in the engaging and disengaging direction along the rotating shaft portion so that the overlapping portion can be rotated relative to the main body portion by being disengaged.
[0006]
Thus, a clearance exists between the cam portion or the cam engaging portion that slides along the rotation shaft portion and the rotation shaft portion so as to enable the slide movement (this clearance is equal to the clearance). Otherwise, the cam portion or cam engaging portion cannot slide along the rotation shaft portion).
[0007]
Therefore, even if the cam portion and the cam engaging portion are engaged with each other at the predetermined turning position by the concave and convex engagement between the cam portion and the cam engaging portion, the turning shaft portion can be the cam portion or the cam portion. As a result, the pivot shaft is slightly rotated by the clearance with respect to the cam engagement portion. Since the rotation shaft portion is provided in a detented state with respect to the first connection portion as described above, The part will be finely pivoted with respect to the main body.
[0008]
In the case of a mobile phone of the type in which the overlapping portion and the main body portion are relatively horizontally rotated, this fine rotation is performed in the closed overlapping state or in the open state (that is, when the cam portion and the cam engaging portion are engaged with the concave and convex portions). Then, the overlapping portion slightly moves in the horizontal direction with respect to the main body portion, which is very bothersome.
[0009]
As described above, the present invention is not limited to the case where the overlapped portion is held in the closed overlapped state or the open state, as well as being able to hold the uneven portion in the closed overlapped state or the open state by, for example, horizontally rotating or raising and lowering the overlapped portion with respect to the main body portion. In addition, it is possible to reliably prevent the overlapping portion and the main body portion from finely rotating, and furthermore, it is possible to prevent unevenness between the cam portion and the cam engaging portion without strengthening the spring urging force of the engaging urging mechanism. It is an object of the present invention to provide an innovative hinge device that can enhance the engagement holding force and is extremely practical and an electronic device using the hinge device.
[0010]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0011]
A hinge device for pivotally connecting a first member to a second member and rotating the first member relative to the second member, wherein the first member is connected to the first member. The first connecting part 5 is provided with a rotating shaft part 6 provided on the part 5 and the bearing part 8 with which the rotating shaft part 6 is rotatably engaged is provided on the second connecting part 7 connected to the second member 4. Provided with a cam portion 9 having a convex portion 9A rotating with the rotating shaft portion 6 or a cam engaging portion 10 having a concave portion 10A, and a cam engaging portion 10 having a concave portion 10A rotating with the bearing portion 8 or A cam portion 9 having a convex portion 9A is provided on the second connecting portion 7, and at least one of the cam portion 9 and the cam engaging portion 10 which engage with the concave and convex portions by rotating relative to each other along the rotating shaft portion 6. And at least one of the cam portion 9 and the cam engaging portion 10 An engaging urging mechanism 11 is provided for urging in the engaging direction when moving in the separating direction when disengaging, and the first member 2 and the second member 4 are relatively rotated to rotate at a predetermined rotational position. The cam portion 9 and the cam engaging portion 10 are configured to be biased to engage with each other to be unevenly engaged, and that the engagement biasing mechanism 11 retains or biases the engagement. By rotating one of the cam portion 9 and the cam engaging portion 10 while moving the cam portion 9 in the separating direction against the engaging urging mechanism 11, the cam portion 9 is moved relative to the cam engaging portion 10. In the hinge device configured to be disengaged and configured to relatively rotate the second member 4 with respect to the first member 2, when the cam portion 9 and the cam engaging portion 10 are engaged with the concave and convex, Auxiliary projection 14 or auxiliary provided on first connecting portion 5 or on a member fixed to first connecting portion 5 A concave and convex engagement assisting mechanism in which the second concave portion 15 and the auxiliary concave portion 15 or the auxiliary convex portion 14 fixed to the second coupling portion 7 or the second coupling portion 7 are irregularly engaged with each other; In a state in which the cam engaging portion 9 and the cam engaging portion 10 are engaged with each other in a concave and convex manner, the rotation shaft is provided by a clearance between the cam portion 9 or the cam engaging portion 10 movably provided along the rotating shaft portion 6. The part 6 can be finely pivoted by the concave and convex engagement between the auxiliary convex part 14 and the auxiliary concave part 15, and the second member 4 with respect to the first member 2 at the predetermined rotational position is prevented. The present invention relates to a hinge device characterized in that it is configured so as to assist holding.
[0012]
In addition, for example, the auxiliary convex portion 14 or the auxiliary concave portion 15 is provided on the first connecting portion 5 or an auxiliary uneven portion forming member fixed to the first connecting portion 5, and the second connecting portion 7 or the second connecting portion is provided. The auxiliary concave portion (15) or the auxiliary convex portion (14) is provided on the cam engaging portion (10) fixed to the portion (7) or the auxiliary uneven portion forming member (17) fixed to the cam portion (9) or the second connecting portion (7). Item 1 relates to the hinge device according to Item 1.
[0013]
Further, for example, a main body provided with the operation unit 1 and a superimposed unit provided with the display unit 3 are superposed and arranged so as to cover the operation unit 1 when the operation unit 1 is not operated. The main body portion and the superimposed portion are rotated so that the operation portion 1 can be exposed by relatively horizontally or undulating rotation of the superimposed portion, or the superimposed portion can be rotated by itself so that it can be turned upside down. A hinge device for rotatably connecting the first member 2 and the second member 4 with the main body portion being the first member 2 or the second member 4. 2. An electronic device using the hinge device, wherein the hinge device according to any one of claims 1 to 3 is used.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.
[0015]
When the first member 2 is relatively rotated with respect to the second member 4, the second connection portion 7 connected to the second member 4 is relatively rotated with respect to the first connection portion 5 connected to the first member 2, Along with this, the convex portion 9A of the cam portion 9 or the concave portion 10A of the cam engaging portion 10 provided on the first connecting portion 5 so as to rotate together with the rotating shaft portion 6 provided on the first connecting portion 5, The concave portion 10A of the cam engaging portion 10 provided on the second connecting portion 7 or the convex portion 9A of the cam portion 9 is relatively rotated so as to rotate together with the bearing portion 8 provided on the second connecting portion 7. The concave / convex engagement is performed at the rotation position.
[0016]
At this time, the first connecting portion 5 or the auxiliary convex portion 14 or the auxiliary concave portion 15 provided on the member fixed to the first connecting portion 5 and the second connecting portion 7 or the second connecting portion 7 The auxiliary concave portion 15 or the auxiliary convex portion 14 provided in the fixed state is engaged with the concave and convex.
[0017]
That is, the first member 2 and the second member 4 are provided at a predetermined rotation position so as to be slidably movable along the rotation shaft 6 in the direction of engagement and disengagement. The concave and convex engagement between the concave portion 10A of the portion 10 and the concave portion 10A of the cam engaging portion 10 or the convex portion 9A of the cam portion 9 which rotates together with the bearing portion 8 provided on the second connecting portion 7, and the first connecting portion 5 or The auxiliary convex portion 14 or the auxiliary concave portion 15 provided on a member provided in a fixed state with respect to the first connecting portion 5 and the auxiliary concave portion 15 or auxiliary provided in a fixed state with respect to the second connecting portion 7 or the second connecting portion 7. By the concave and convex engagement with the convex portion 14, the concave and convex engagement is held.
[0018]
Therefore, a clearance between the rotating shaft portion 6 and the cam portion 9 or the cam engaging portion 10 for realizing the concave-convex engagement between the cam portion 9 and the cam engaging portion 10, that is, the rotating shaft portion 6 Even if there is a clearance for allowing the cam portion 9 or the cam engaging portion 10 to slide along the gap, the convex portion 9A of the cam portion 9 and the concave portion 10A of the cam engaging portion 10 are engaged with the concave and convex. At this time, the first connection portion 5 and the second connection portion 7 are held by the uneven engagement assisting mechanism without the rotation shaft portion 6 by the uneven engagement assisting mechanism, that is, for example, the first connection portion 5 is fixed to the first connection portion 5. By holding the auxiliary convex portion 14 or the auxiliary concave portion 15 provided on the second portion 7 and the auxiliary concave portion 15 or the auxiliary convex portion 14 provided in a fixed state to the second connecting portion 7 in a concave and convex engagement, for example, The movement is prevented by the concave-convex engagement between the auxiliary convex portion 14 and the auxiliary concave portion 15. It can be.
[0019]
Further, the first member 2 and the second member 4 are engaged with each other at two positions, namely, the concave and convex engagement between the cam portion 9 and the cam engaging portion 10 and the concave and convex engagement between the auxiliary convex portion 14 and the auxiliary concave portion 15. By holding the engagement, the engagement holding force can be reinforced and strengthened as compared with the case where the concave-convex engagement is performed at one position. Therefore, for example, the urging force of the engagement urging mechanism 11 can be reduced. Even if it is set, the closed overlapping state and the open state can be realized with a sufficient uneven engagement holding force.
[0020]
【Example】
A specific embodiment of the present invention will be described with reference to the drawings.
[0021]
In this embodiment, as shown in FIG. 1, FIG. 9 and FIG. 10, the present invention is applied to a cellular phone which can be made compact and superimposed. The main body 4 is a second member 4, and an operation unit 1 that performs a keyboard function in which numeric keys, function keys, and the like are arranged is provided on the upper surface side of the main body 4. The operation unit 1 overlaps the main body 4 to cover the operation unit 1. A substantially identical plate-shaped overlapping portion 2 is used as the first member 2, and the overlapping portion 2 and the main body 4 are pivotally connected by a hinge device H so as to be substantially horizontally rotatable.
[0022]
A display section 3 such as a liquid crystal panel or the like on which a predetermined display is provided by a previously set screen or an operation of the operation section 1 or an incoming call is provided on an upper surface side of the overlapping section 2.
[0023]
The connection between the overlapping portion 2 and the main body portion 4 is performed by connecting the overlapping portions of both ends by a hinge device H having a rotating shaft portion 6 arranged vertically. It is connected as a rotation support shaft so as to be rotatable in a substantially horizontal direction.
[0024]
Further, as shown in FIG. 9, both the overlapping portion 2 and the main body portion 4 are slightly rising and inclined with respect to the end overlapping portion where the hinge device H is assembled (if the main body portion is arranged horizontally, the ends are slightly raised and inclined). When the overlapping portion 2 is horizontally rotated by approximately 180 degrees from the overlapped state and the overlapping portion 2 and the main body portion 4 are connected in a straight line, the display portion 3 of the overlapping portion 2 is formed. Is configured to be easily inclined with respect to the main body 4 as if it were slightly raised.
[0025]
Next, the hinge device H of the present embodiment will be described.
[0026]
In the present embodiment, as shown in FIGS. 2 to 4, the lower side of the second mounting base 7 serving as the second connecting portion 7 for connecting the plate member to the main body portion 4 (the second member 4) that is folded in a U-shape. The both sides of the piece are fastened to the end of the main body 4 by fastening with screws or the like, and a bearing 8 is provided at the center of the upper side of the folded mounting base 7, and the rotating shaft 6 is provided at the center. A first attachment base 5 serving as a first connecting portion 5 connected to the overlapping portion 2 (first member 2) fixed to the detent is attached and fixed to an end of the overlapping portion 2, and the rotating shaft portion is attached to the bearing portion 8. 6 are inserted and engaged, and the overlapping portion 2 is connected to the main body 4 so as to be substantially horizontally rotatable with the vertically arranged rotating shaft 6 as a rotating support shaft.
[0027]
In the present embodiment, the second mounting base 7 is folded back in the U-shape so as to smoothly rotate the bearing portion 8 in the forming direction (the axial direction of the rotating shaft portion 6). It can be adjusted by adjusting the setting, and even if there is some error in the direction between the bearing portion 8 and the rotating shaft portion 6, the error is absorbed by the bending of the folded second mounting base 7. It has a configuration that can be attached to the shaft.
[0028]
As described above, since the second mounting base 7 is formed of a folded plate material and the bearing 8 is provided on one side piece, even if a load is applied to the rotating shaft 6, the folded structure can absorb the elastic pressure. The rotation is very smooth and the durability is excellent.
[0029]
The first mounting base 5 is provided with a cam portion 9 having a convex portion 9A for rotating a convex portion rotating with the rotating shaft portion 6, and a cam engaging portion having a concave portion 10A for rotating with the bearing portion 8. 10 is provided on the second mounting base 7, and the first mounting base 5 (first member 2) and the second mounting base 7 (second member 4) are relatively rotated to rotate the cam portion at a predetermined rotation position. The cam 9 and the cam engaging portion 10 are configured to be urged by an engaging urging mechanism 11 provided in the hinge device H to be engaged with the concave / convex or in the middle of the engagement.
[0030]
Specifically, the first mounting base 5 is provided with the rotation shaft 6 in a detented state, and the rotation shaft 6 is inserted into the mounting hole 8 which becomes the bearing 8 provided on the second mounting base 7. Thus, the cam portion 9 provided with the convex portion 9A on the rotating shaft portion 6 is provided in a state in which the cam portion 9 is prevented from rotating, and is capable of moving away from the cam portion 9 in the axial direction by a predetermined length.
[0031]
A state in which the cam portion 6 is urged toward the cam engaging portion 10 by a disc spring 11A constituting the engaging urging mechanism 11 (in the direction of the first mounting base 5). And a stopper 18 for attaching to the rotating shaft 6 is provided.
[0032]
A cam engaging portion 10 having a concave portion 10A with which the convex portion 9A of the cam portion 9 is engaged is disposed between the second mounting base 7 and the cam portion 9.
[0033]
That is, the cam engaging portion 10 is configured to abut against the bearing hole 8 </ b> A of the second mounting base 7 toward the first mounting base 5 so as to be locked and disposed.
[0034]
Specifically, as shown in FIG. 5, the cam engaging portion 10 is formed of a ring-shaped member having an insertion hole 10B at the center thereof, through which the rotation shaft portion 6 is rotatably inserted. A concave portion 10A is formed at one or a plurality of positions on a surface of the mating portion 10 facing the cam portion 9, that is, a surface of the cam engaging portion 10 opposite to the first mounting base 5.
[0035]
More specifically, as shown in FIGS. 5 and 6, a step 25 is formed at the edge of the insertion hole 10 </ b> B of the cam engaging section 10 on the side where the cam 9 is provided, and is formed by the step 25. A concave portion 10A is provided at a position facing the stepped portion 25A.
[0036]
That is, the cam portion 9 is engaged with the step portion 25, and the cam portion 9 and the cam engaging portion 10 are relatively rotated, so that the convex portion 9A and the concave portion 10A can be pulled out. .
[0037]
Also, a convex part moving surface outside the concave part 10A, in which the convex part 9A of the cam part 9 moves when the overlapping part 2 is opened and closed with respect to the main body part 4, that is, when the overlapping part 2 is rotated with respect to the main body part 4. (That is, a moving surface on which the convex portion 9A moves when the overlapping portion 2 is opened or closed with respect to the main body portion 4; hereinafter, referred to as a rotating moving surface 26).
[0038]
Specifically, as shown in FIG. 7, the rotation moving surface 26 is configured to be recessed by forming an inclined surface that is gently inclined in a concave shape from the edge of the recess 10 </ b> A.
[0039]
The reason why the rotation moving surface 26 is formed as a gently inclined surface is to realize smooth rotation while reducing the rotation resistance of the overlapping portion 2 that rotates with respect to the main body portion 4. Assuming that the rotational movement surface 26 is an inclined surface that is sharply inclined with respect to the edge of the concave portion 10A, the convex portion 9A is cammed by the urging force of the disc spring 11A at the moment when the convex portion 9A comes out of the concave portion 10A. This is because it is difficult to realize smooth rotation by jumping to the engaging portion 10 side.
[0040]
Further, as shown in FIG. 8, the degree of depression of the rotary movement surface 26 is such that the pressing strength of the convex portion 9A pressed and urged toward the rotary movement surface 26 by the disc spring 11A is reduced or substantially reduced. The configuration is such that the dent degree can be set to zero.
[0041]
That is, as shown in FIG. 7, when the convex portion 9A gets over the edge portion of the concave portion 10A (that is, the edge portion of the concave portion 10A in the moving direction of the convex portion 9A), the convex portion 9A is gently inclined in a concave shape, and accordingly the convex portion 9A Is retracted by a dent in the direction in which the disc spring 11A is urged, moves a predetermined length in a state in which the dent is retracted, and gradually becomes convex as the projection 9A approaches another depression 10A opposed to the depression 10A. The cam engaging portion 10A is configured so that the convex portion 9A can be engaged with the concave portion 10A again when it is inclined and gets over the edge of the opposed concave portion 10A.
[0042]
The cam 9, which has been slid by a predetermined length in the axial direction with respect to the rotating shaft 6, is urged to engage with the cam engaging portion 10 by the disc spring 11 </ b> A. In the overlapping state, the convex portion 9A of the cam portion 9 engages with the concave portion 10A of the cam engaging portion 10, and the convex portion 9A rides over the edge of the concave portion 10A during the opening rotation and the closing overlapping rotation. It is configured so as to be able to move on the recessed turning movement surface 26.
[0043]
Accordingly, when the overlapping portion 2 is rotated from the closed overlapping state in which the overlapping portion 2 covers the operation portion 1 of the main body portion 4 to the main body portion 4 by, for example, laterally pushing the overlapping portion 2, the cam engagement with the concave portion 10A is performed. When the raised convex portion 9A escapes from the concave portion 10A and gets over the edge of the concave portion 10A, and gets over the edge portion, the convex portion 9A moves in the rotary movement surface 26.
[0044]
That is, even if the cam portion 9 is urged against the cam engaging portion 10 by the disc spring 11A, the convex portion 9A moves with or without contact with the rotating surface 26 with a small force. In addition, when the overlapping portion 2 rotates, little rotation resistance is generated, and smooth rotation can be realized.
[0045]
Therefore, especially for an electronic device such as a horizontally rotating mobile phone as applied in the present embodiment, the overlapping portion 2 can be smoothly moved only by slightly applying a force and laterally pushing the overlapping portion 2. It is possible to rotate with respect to the main body 4, so that the overlapping portion 2 can be smoothly rotated and the click engagement can be firmly realized. It is very optimal because it is possible to easily achieve the opening state by rotating the overlapping section 2 by 180 degrees from the closed overlapping state, for example, with the insertion condition (that is, with a single push).
[0046]
In this embodiment, the cam engaging portion 10 is formed by integral molding.
[0047]
That is, the concave portion 10A provided in the cam engaging portion 10 and the rotary moving surface 26 formed in a concave shape are formed by integral molding.
[0048]
In this embodiment, the cam engaging portion 10 is integrally formed of metal.
[0049]
In the present embodiment, the cam engaging portion 10 is formed integrally with metal, but may be formed integrally with synthetic resin.
[0050]
Therefore, the excellent effect of the present embodiment that the overlapping portion 2 can be smoothly rotated with respect to the main body portion 4 can be obtained by simply forming the cam engaging portion 10 integrally so that the rotation moving surface 26 becomes concave. It can be easily realized simply by forming.
[0051]
In the present embodiment, the cam engaging portion 10 having the concave rotating movement surface 26 is formed by integral molding. However, the cam engaging portion 10 of the cam engaging portion 10 is not formed in a concave shape. The cam engaging portion 10 may be integrally formed, and after this integral forming, the convex moving surface may be formed in a concave shape by cutting or the like to form the rotation moving surface 26.
[0052]
In the present embodiment, a closed overlapping state in which the operation unit 1 of the main body unit 4 is covered with the overlapping unit 2 and an open state in which the overlapping unit 2 is horizontally rotated to make the overlapping unit 2 and the main body unit 4 linear. In such a case, a concave / convex engagement assisting mechanism 27 for preventing fine movement rotation of the main body 4 and the overlapping portion 2 is provided.
[0053]
This fine rotation is performed by sliding the cam portion 9 along the rotation shaft portion 6 by a predetermined length in order to realize click engagement (cam engagement locking) between the cam portion 9 and the cam engagement portion 10. This is caused by the clearance generated between the cam portion 9 and the rotating shaft portion 6 due to the configuration such that the overlapping portion 2 can be horizontally moved with respect to the main body portion 4 as particularly adopted in this embodiment. For the mobile phone of the rotating type, the overlapped portion 2 slightly moves when the overlapped portion 2 covers the main body portion 4 and when the overlapped portion 2 and the main body portion 4 are in an open state in which the body portion 4 is linear. Worried
[0054]
That is, for example, a mobile phone of a type in which the overlapping portion is raised and lowered with respect to the main body portion is slightly urged to rotate when it is in the closed state because it is urged to close (being engaged with the cam). However, in the case of this embodiment, when the overlapping portion 2 and the main body portion 4 are in the closed overlapping state or the open state, the convex portion 9A of the cam portion 9 and the concave portion 10A of the cam engaging portion 10 are formed. Are locked by cam engagement (click engagement), that is, they are not closed and biased, so that the fine clearance rotation occurs due to the clearance.
[0055]
Therefore, in order to prevent this fine rotation, the concave / convex engagement assist mechanism 27 is configured as follows.
[0056]
That is, the concave / convex engagement assisting mechanism 27 is provided in a fixed state with respect to the first connecting portion 5 or the first connecting portion 5 when the cam portion 9 and the cam engaging portion 10 engage with each other. The auxiliary convex portion 14 or the auxiliary concave portion 15 provided on the member and the auxiliary concave portion 15 or the auxiliary convex portion 14 provided in a fixed state with respect to the second connecting portion 7 or the second connecting portion 7 are engaged with each other. In the state where the cam portion 9 and the cam engaging portion 10 are engaged with each other, the cam portion 9 and the cam engaging portion 10 are movably provided along the rotation shaft portion 6. Is prevented by the concave and convex engagement between the auxiliary convex portion 14 and the auxiliary concave portion 15 with respect to the first member 2 at the predetermined rotational position. The holding of the second member 4 is assisted and strengthened.
[0057]
Specifically, the first convex portion 14 or the second concave portion 15 is provided on the first connecting portion 5 or the auxiliary concave / convex portion forming member fixed to the first connecting portion 5, and the second connecting portion 7 or the second The auxiliary concave portion 15 or the auxiliary convex portion 14 is provided in the cam engaging portion 10 fixed to the connecting portion 7 or the auxiliary uneven portion forming member 17 fixed to the cam portion 9 or the second connecting portion 7.
[0058]
More specifically, the main unit 4 serving as the second member 4 provided with the operation unit 1 and the overlapping unit 2 serving as the first member 2 provided with the display unit 3 are connected to each other when the operation unit 1 is not operated. The operation unit 1 is covered so as to cover the operation unit 1, and the operation unit 1 can be exposed by rotating the polymerization unit 2 relatively horizontally or undulatingly from this superposed state, or The main body 4 and the overlapping portion 2 are rotatably connected to each other so that the main body 4 and the overlapping portion 2 can be rotated so that the front and rear can be turned over.
[0059]
In the present embodiment, the auxiliary recess 15 is provided in the first mounting base 5 serving as the first connecting portion 5, and is fixed to the second mounting base 7 between the first mounting base 5 and the second mounting base 7. The auxiliary projection 14 is provided on the mounting body 22 which becomes the auxiliary uneven engagement member 17 provided.
[0060]
That is, in the closed overlapping state in which the overlapping portion 2 covers the operation portion 1 of the main body portion 4 and in the open state in which the overlapping portion 2 is linear with respect to the main body portion 4, the auxiliary convex portion 14 engages with the cam. The locking auxiliary concave portion 15A for engaging and locking, and the auxiliary convex portion 14 when the overlapping portion 2 rotates horizontally with respect to the main body portion 4, that is, at the time of closing overlapping rotation and at the time of opening rotation. And a rotating assist recess 15B that moves.
[0061]
The locking auxiliary concave portion 15A is provided at a position where the auxiliary convex portion 14 can be cam-engaged when the convex portion 9A of the cam portion 9 and the concave portion 10A of the cam engaging portion 10 are cam-engaged. And
[0062]
Thereby, when the convex portion 9A of the cam portion 9 and the concave portion 10A of the cam engaging portion 10 are engaged by the cam engagement (that is, the overlapping portion 2 is closed with respect to the main body portion 4 or opened linearly). In order to enable the cam engagement, the cam portion 9 is provided so as to be slidable in the length direction with respect to the rotation shaft portion 6 by a predetermined length. The rattling that occurs due to the clearance between the cam unit 9 and the cam unit 9, that is, the fine rotation that occurs when the overlapping unit 2 is brought into the closed overlapping state or the open state with respect to the main body unit 4 can be prevented.
[0063]
That is, even if the convex portion 9A of the cam portion 9 is engaged with the concave portion 10A of the cam engaging portion 10 by cam engagement, the rotation shaft portion 6 is moved by the rotation shaft portion 6 with respect to the cam portion 9 engaged and engaged by the cam. As a result, the first mounting base 5 (the overlapping portion 2) is finely rotated with respect to the main body portion 4 due to the fine rotation, but at this time, the first mounting fixed to the overlapping portion 2 is performed. The auxiliary projections 14 fixed to the second mounting base 7 fixed to the main body 4 are cam-engaged and locked in the locking auxiliary recesses 15A provided in the base 5 so that the overlapping portion 2 Can be prevented from finely rotating with respect to the main body 4.
[0064]
Further, in the closed overlap state and the open state, cam engagement (click engagement) between the convex portion 9A of the cam portion 9 and the concave portion 10A of the cam engaging portion 10 and cam between the auxiliary convex portion 14 and the auxiliary concave portion 15 are performed. Since the overlapped portion 2 and the main body portion 4 are click-engaged by the two cam engagements with the engagement, for example, in order to maintain a state where the cam portion 9 and the cam engagement portion 10 are cam-engaged. Even if the engaging urging force of the engaging urging mechanism 11 is set small, a sufficient cam engaging force can be exhibited.
[0065]
That is, by providing the cam engaging portions at two places, the fine movement rotation can be prevented, and good cam engagement locking can be realized with a small engaging urging force.
[0066]
Further, in this embodiment, as shown in FIG. 4, the locking auxiliary concave portion 15A is provided at a facing position, and the auxiliary convex portion is provided at a predetermined position on the upper surface of the mounting body 22 which can be engaged with the locking auxiliary concave portion 15A. 14 is provided.
[0067]
More specifically, a concave streak is formed around the rotation shaft mounting hole 28 for preventing the rotation shaft portion 6 from rotating around the lower side of the first mounting base 5 where the second mounting base 7 is provided. The auxiliary concave portion 15 is formed by intermittently providing the rotation auxiliary concave portion 15B via the locking auxiliary concave portion 15A.
[0068]
Accordingly, the rotation of the overlapping portion 2 with respect to the main body 4 can be performed smoothly, and the cam member 9 is prevented from rotating slightly when the cam portion 9 and the cam engaging portion 10 are engaged with the cam. The locked state can be realized.
[0069]
In addition, the attachment body 22 provided with the auxiliary protrusion 14 also constitutes a rotation stopper mechanism 13 described later.
[0070]
A rotation stopper mechanism 13 is provided between the first mounting base 5 and the second mounting base 7 to prevent excessive rotation when the overlapping portion 2 and the main body 4 are relatively rotated. .
[0071]
The rotation stopper mechanism 13 is provided between the first mounting base 5 and the second mounting base 7 with a stopper 13A protruding from an end of the first mounting base 5, and the rotation shaft 6 And a stopper locking portion 13B which is rotatable with respect to and stops the rotation of the stopper portion 13A.
[0072]
Specifically, the stopper 13 </ b> A abuts the hole edge of the second mounting base 7 on the hole edge of the bearing hole 8 </ b> A between the second mounting base 7 and the first mounting base 5. Is disposed on the collar body 20, and a ring-shaped stopper locking body 21 having a stopper locking portion 13 </ b> B at an end thereof is rotatably mounted on the collar body 20 with respect to the rotation shaft 6. A mounting body 22 is provided between the stopper locking body 21 and the first mounting base 5 to mount the stopper body 21 on the upper surface of the cam engaging portion 10 so as to be rotatable by a predetermined angle. Thus, the rotation stopper mechanism 13 is configured.
[0073]
That is, a step portion 23 is formed on the upper surface of the cam engaging portion 10 which abuts against the second mounting base 7 so that the stopper engaging member 21 can be engaged and arranged. The stopper locking member 21 is placed and engaged, and the stopper locking member 21 that has been placed and engaged is mounted and engaged with the cam engaging portion 10 by the mounting member 22.
[0074]
In the cam engaging portion 10, a stopper locking portion 13B for contacting and locking the stopper portion 13A is rotatable by a predetermined angle, and the contact locking position of the stopper portion 13A by the stopper locking portion 13B is changed and adjusted. And a locking position adjusting portion 24 that can be used.
[0075]
Specifically, a notch portion 24A having a predetermined length is provided at a predetermined position of an upper edge portion of the cam engaging portion 10 on the side where the step portion 23 is formed, thereby forming the locking position adjusting portion 24.
[0076]
That is, the stopper locking member 21 is disposed on the step portion 23 in a state where the stopper locking portion 13B is engaged with the locking position adjusting portion 24, and the stopper is rotated with the rotation of the first mounting base 5. The stopper locking portion 13B that locks the portion 13A is configured to be movable in the formation range of the cutout portion 24A.
[0077]
In the present embodiment, the stopper 13A, which abuts and locks the stopper 13A that rotates together with the overlapping portion 2, is not fixed to the main body 4, so that the stopper 13A will rotate 360 degrees. In this case, it is possible to avoid a situation in which the rotation of the stopper 13A is prevented by the width of the stopper locking portion 13B.
[0078]
That is, if the stopper locking portion 13B is provided in a fixed state with respect to the main body portion 4, the range from one side to the other side of the stopper locking portion 13B becomes a rotatable range of the stopper portion 13A. The rotation of the stopper 13A is prevented by the thickness of the stopper 13B, so that the rotation of 360 degrees becomes impossible.
[0079]
In this regard, in the present embodiment, the stopper locking portion 13B that locks the stopper portion 13A can be moved in the left and right direction by a predetermined angle (that is, an angle at which the overlapping portion 2 can be rotated 360 degrees with respect to the main body portion 4). With this configuration, when the stopper portion 13A is rotated from the state where the stopper portion 13A abuts on one side of the stopper engagement portion 13B and abuts on the other side of the stopper engagement portion 13B, the stopper engagement is performed. The portion 13B is not locked at the contact portion, but is further pushed by the notch portion 24A and locked when the overlapping portion 2 rotates 360 degrees with respect to the main body 4, so that the portion 13B is locked with respect to the main body 4. The polymerization unit 2 can be surely rotated 360 degrees, so that, for example, from a state in which the polymerization unit 2 is closed and overlapped with the main body unit 4, the polymerization unit 2 is rotated substantially horizontally from either the left or right direction. Part 2 and body part 4 The ability to open state as a straight line.
[0080]
It should be noted that the present invention is not limited to the present embodiment, and a specific configuration of each component can be appropriately designed.
[0081]
【The invention's effect】
Since the present invention is configured as described above, as in the past, for example, the overlapping portion can be horizontally rotated or raised and lowered with respect to the main body portion to hold the concave / convex engagement in the closed overlapping state or the open state. When in the open state or the open state, it is possible to reliably prevent the overlapping portion and the main body portion from finely rotating, and furthermore, without strengthening the spring biasing force of the engagement biasing mechanism, the An extremely practical and revolutionary hinge device and an electronic device using the hinge device, which can enhance the uneven engagement holding force with the cam engagement portion.
[0082]
That is, a clearance between the rotating shaft portion and the cam portion or the cam engaging portion to realize the concave-convex engagement between the cam portion and the cam engaging portion, that is, the cam portion or the cam portion along the rotating shaft portion. Even if there is a clearance for allowing the cam engaging portion to be slidable, the first connecting portion and the second connecting portion are formed when the convex portion of the cam portion and the concave portion of the cam engaging portion engage with each other. And the concave / convex engagement holding mechanism by the concave / convex engagement assist mechanism without the rotation shaft portion, that is, for example, an auxiliary convex portion or an auxiliary concave portion provided in a fixed state in the first connecting portion, and, for example, the second connecting portion By holding the auxiliary concave portion or the auxiliary convex portion provided in a fixed state on the concave and convex engagement, the fine rotation caused by the clearance can be prevented by the concave and convex engagement between the auxiliary convex portion and the auxiliary concave portion. Innovative hinge device and hinge device that are extremely practical The stomach electronic devices.
[0083]
Further, the first member and the second member are engaged and held by two concave-convex engagements of the concave-convex engagement between the cam portion and the cam engaging portion and the concave-convex engagement between the auxiliary convex portion and the auxiliary concave portion. Therefore, the engagement holding force can be strengthened as compared with the case where the concave and convex engagement is performed at one place. An extremely practical and revolutionary hinge device and an electronic device using the hinge device, which can realize a closed polymerization state and an open state with a combined holding force.
[0084]
According to the second and third aspects of the present invention, there is provided an extremely practical hinge-type hinge device and an electronic device using the hinge device, which can reliably and satisfactorily exhibit the above-mentioned effects.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view showing a use state of the present embodiment.
FIG. 2 is an explanatory perspective view showing the hinge device of the present embodiment.
FIG. 3 is an explanatory exploded perspective view showing the hinge device of the embodiment.
FIG. 4 is an explanatory exploded perspective view showing the hinge device of the embodiment.
FIG. 5 is an explanatory perspective view showing a cam portion and a cam engaging portion of the embodiment.
FIG. 6 is an explanatory view showing a cam engaging portion of the embodiment.
FIG. 7 is an explanatory diagram showing a state of movement of the convex portion due to relative rotation between the cam portion and the cam engaging portion in the embodiment.
FIG. 8 is an explanatory front sectional view and an explanatory side sectional view showing the hinge device of the present embodiment.
FIG. 9 is an explanatory diagram illustrating a state of the hinge device when the overlapping portion is rotated with respect to the main body according to the present embodiment.
FIG. 10 is an explanatory diagram illustrating a stopper mechanism associated with a rotation operation of the overlapping portion with respect to the main body according to the present embodiment.
FIG. 11 is an explanatory perspective view showing a fine movement rotation preventing mechanism of the present embodiment.
FIG. 12 is an explanatory diagram showing a state in which an auxiliary convex portion and an auxiliary concave portion of the present embodiment are engaged.
FIG. 13 is an explanatory diagram showing that a clearance is generated by providing a cam portion so as to be slidable with respect to the rotation shaft portion of the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Operation part 2 First member 3 Display part 4 Second member 5 First connecting part 6 Rotating shaft part 7 Second connecting part 8 Bearing part 9 Cam part 9A Convex part 10 Cam engaging part 10A Concave part 11 Engage urging Mechanism 14 auxiliary convex part 15 auxiliary concave part 17 auxiliary concave and convex part forming member

Claims (3)

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前記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所定回動位置でこのカム部とカム係合部とが係合付勢されて凹凸係合し、前記係合付勢機構によりこの係合が保持されるあるいは係合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、前記カム部と前記カム係合部とが凹凸係合した際、前記第一連結部若しくは第一連結部に対して固定状態に設けた部材に設けた補助凸部又は補助凹部と、前記第二連結部若しくは第二連結部に対して固定状態に設けた補助凹部又は補助凸部とが凹凸係合する凹凸係合補助機構を設けて、前記カム部と前記カム係合部とが凹凸係合した状態で、前記回動軸部に沿って移動自在に設けた前記カム部若しくはカム係合部との間のクリアランスによって回動軸部が微動回動し得ることを、前記補助凸部と前記補助凹部との凹凸係合によって阻止して、前記所定回動位置での前記第一部材に対する前記第二部材の保持を補助強化するように構成したことを特徴とするヒンジ装置。What is claimed is: 1. A hinge device for pivotally connecting a first member and a second member and rotating the first member relative to the second member. Part, a bearing portion with which the rotating shaft portion is rotatably engaged is provided at a second connecting portion connected to the second member, and a convex portion which rotates with the rotating shaft portion at the first connecting portion. A cam portion having a concave portion or a cam engaging portion having a concave portion is provided, and a cam engaging portion having a concave portion or a cam portion having a convex portion that rotates together with the bearing portion is provided in the second connecting portion, and the second connecting portion is rotated relatively. Thus, at least one of the cam portion and the cam engaging portion that engages with the concave and convex portions is provided so as to be slidable along the rotation shaft portion in the engaging and disengaging direction. An engagement urging mechanism that urges in the engaging direction when moving in the separating direction when detaching is provided. The first member and the second member are relatively rotated, and at a predetermined rotation position, the cam portion and the cam engaging portion are urged to engage with each other to engage with the concave and convex portions. The engagement is held or the engagement is urged, and one of the cam portion and the cam engagement portion is rotated while moving in the separating direction against the engagement urging mechanism. A hinge portion configured to disengage the cam portion with respect to the cam engaging portion and relatively rotate the second member with respect to the first member. When the concave and convex are engaged, the auxiliary connecting portion or the auxiliary concave portion provided on the member provided in a fixed state with respect to the first connecting portion or the first connecting portion, and the second connecting portion or the second connecting portion. The auxiliary concave or auxiliary convex portion provided in a fixed state is provided with a concave and convex engagement auxiliary mechanism for concave and convex engagement. In a state where the cam portion and the cam engaging portion are engaged with the concave and convex portions, the rotating shaft portion is slightly moved by a clearance between the cam portion or the cam engaging portion movably provided along the rotating shaft portion. Rotation is prevented by the concave and convex engagement between the auxiliary convex portion and the auxiliary concave portion, and the holding of the second member with respect to the first member at the predetermined rotational position is assisted and strengthened. A hinge device. 前記第一連結部若しくはこの第一連結部に固定する補助凹凸部形成部材に前記補助凸部又は前記補助凹部を設け、前記第二連結部若しくはこの第二連結部に固定する前記カム係合部あるいはカム部若しくは第二連結部に固定する補助凹凸部形成部材に前記補助凹部又は前記補助凸部を設けたことを特徴とする請求項１記載のヒンジ装置。The first engaging portion or the auxiliary uneven portion forming member fixed to the first connecting portion is provided with the auxiliary convex portion or the auxiliary concave portion, and the cam engaging portion fixed to the second connecting portion or the second connecting portion. The hinge device according to claim 1, wherein the auxiliary concave portion or the auxiliary convex portion is provided on an auxiliary concave / convex portion forming member fixed to the cam portion or the second connecting portion. 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水平回動若しくは起伏回動して操作部を露出させることができるように、若しくは重合部を表裏反転自在となるべく自転回動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。The main body portion provided with the operation portion and the overlap portion provided with the display portion are arranged so as to cover the operation portion when the operation portion is not operated, and the overlap portion is relatively displaced from this overlapped state. The main body portion and the overlap portion are rotatably connected so that the operation portion can be exposed by horizontal rotation or up-and-down rotation, or so that the overlap portion can be rotated by itself so that it can be turned upside down. The hinge device according to any one of claims 1 to 3, wherein the main body portion is the first member or the second member, and the overlapping portion is the second member or the first member. An electronic device using the hinge device, wherein the hinge device is used.

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