JP4617360B2 - HINGE DEVICE AND ELECTRONIC DEVICE USING HINGE DEVICE - Google Patents

HINGE DEVICE AND ELECTRONIC DEVICE USING HINGE DEVICE Download PDF

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JP4617360B2
JP4617360B2 JP2008001310A JP2008001310A JP4617360B2 JP 4617360 B2 JP4617360 B2 JP 4617360B2 JP 2008001310 A JP2008001310 A JP 2008001310A JP 2008001310 A JP2008001310 A JP 2008001310A JP 4617360 B2 JP4617360 B2 JP 4617360B2
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cam
engagement
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hinge device
concave
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英明 高辻
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Strawberry Corp
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Description

本発明は、ヒンジ装置並びにヒンジ装置を用いた電子機器に関するものである。   The present invention relates to a hinge device and an electronic apparatus using the hinge device.

様々なヒンジ装置が提案されているが、携帯電話やノート形パソコンの本体部と重合部（蓋）は、およそ次のような構成のヒンジ装置により枢着されている。   Various hinge devices have been proposed, but the main body and the overlapping portion (lid) of a mobile phone or a notebook personal computer are pivotally attached by a hinge device having the following configuration.

即ち、例えば特開平１１−９８２２８号に開示されるヒンジ装置（以下、従来例）が提案されており、取付ケース体内に回り止め状態に一対の凹部を有するカム係合部を設け、このカム係合部は、前記取付ケース体内に設けた係合付勢バネに抗して取付ケース体内でスライド移動自在に設け、このカム係合部に対向して前記係合付勢バネによりカム係合部の凹部と付勢係合する一対の凸部を有するカム部を設け、このカム部を前記取付ケース体の一側に突出状態に設け、前記本体部，重合部のいずれか一方に前記取付ケース体を固定状態に設け、いずれか他方に前記カム部を固定状態に設け、前記本体部に対して前記重合部を回動させると、前記係合付勢バネに抗して前記カム係合部を離反させつつカム係合部と前記カム部とが係脱して相対回動し、このカム係合部とカム部とが付勢係合した状態では前記本体部に対する前記重合部の回動位置が保持されるように構成している。   That is, for example, a hinge device (hereinafter referred to as a conventional example) disclosed in Japanese Patent Laid-Open No. 11-98228 has been proposed, and a cam engagement portion having a pair of recesses is provided in the mounting case so as to prevent rotation. The joint portion is slidably provided in the mounting case body against the engagement biasing spring provided in the mounting case body, and is opposed to the cam engagement portion by the engagement biasing spring. A cam portion having a pair of convex portions that urge-engage with the concave portion of the mounting case, the cam portion projectingly provided on one side of the mounting case body, and the mounting case on either the main body portion or the overlapping portion When the body is provided in a fixed state, the cam portion is provided in a fixed state on either side, and the overlapping portion is rotated with respect to the main body portion, the cam engagement portion is resisted against the engagement biasing spring. The cam engaging part and the cam part are disengaged and Dynamic and, the cam engaging portion and the cam portion is in a state of engagement urging engagement is constructed as rotational position of the overlapping portion with respect to the main body portion is held.

従って、例えば本体部と重合部とからなる折畳式の携帯電話の枢着部に具備せしめた場合、本体部に対して重合部を所定角度開放した回動位置ではカム係合によって回動位置がロックされ、また重合閉塞した状態ではカム部に設けた凸部とカム係合部に設けた凹部とはカム係合途中にあり、回動付勢力（吸い込み力）による閉じ付勢が生じるように構成することができる。   Therefore, for example, when it is provided in a pivoting portion of a foldable mobile phone composed of a main body portion and an overlapping portion, the rotating portion is opened by a predetermined angle with respect to the main body portion by a cam engagement. Is locked, and the convex portion provided in the cam portion and the concave portion provided in the cam engaging portion are in the middle of the cam engagement so that the closing bias is generated by the rotational biasing force (suction force). Can be configured.

特開平１１−９８２２８号公報Japanese Patent Laid-Open No. 11-98228

ところが、従来例は、カム部に設けた各凸部が外方向に変形移動してしまい、良好な回動付勢力（吸い込み力）が得られなくなる場合がある。   However, in the conventional example, each convex portion provided on the cam portion may be deformed and moved outward, so that a favorable rotation biasing force (suction force) may not be obtained.

即ち、図８，９に図示したように例えば普段使用しない状態（本体部に対して重合部を重合閉塞した状態）において、常にカム部53に設けた各凸部53Ａとカム係合部54に設けた各凹部54Ａとは係合付勢バネ55による係合付勢を受けてカム係合途中（回動付勢力が生じる状態）となるが、この状態で気温の上昇などにより熱が加わることで各凸部53Ａが外方向に変形移動してしまう場合がある。この熱による原因の他にも、各凸部53Ａを構成する素材（樹脂）の劣化が原因となったり、カム部53の凸部53Ａ，カム係合部54の凹部54Ａの磨耗が原因となるなどして変形移動する場合がある。   That is, as shown in FIGS. 8 and 9, for example, in a state where it is not normally used (a state in which the overlapping portion is overlapped with respect to the main body portion), the protrusions 53A provided on the cam portion 53 and the cam engaging portions 54 are always provided Each of the provided recesses 54A receives an engagement bias by the engagement bias spring 55 and is in the middle of cam engagement (a state in which a rotating bias force is generated). In this state, heat is applied due to an increase in temperature or the like. Thus, each convex portion 53A may be deformed and moved outward. In addition to the cause of this heat, the material (resin) constituting each convex portion 53A is deteriorated, and the convex portion 53A of the cam portion 53 and the concave portion 54A of the cam engaging portion 54 are worn. For example, there is a case of deformation.

この各凸部53Ａが外方に変形移動すると、各凹部54Ａに対して各凸部53Ａが設計時に最適とされた位置よりも更に落ち込み方向に回動することになり完全に凹凸係合してしまい、よって、各凹部54Ａに対して各凸部53Ａがカム係合途中となることで得られた回動付勢力（吸い込み力）が無くなる、若しくは弱くなってしまうという問題点がある。   When the respective convex portions 53A are deformed and moved outward, the respective convex portions 53A are further rotated relative to the respective concave portions 54A in the downward direction from the positions optimized at the time of design, and are completely engaged with the concave and convex portions. Therefore, there is a problem that the rotation biasing force (suction force) obtained by the convex portions 53A being in the middle of cam engagement with the concave portions 54A is lost or weakened.

つまり、本体部に対して重合部を重合閉塞した状態及び所定角度回動させた開放状態において、ヒンジ装置による良好な回動付勢力（吸い込み力）が作用しないと、本体部に対する重合部のガタツキが生じてしまうのである。   In other words, in a state in which the overlapping portion is overlapped with the main body portion and in an open state in which the overlapping portion is rotated by a predetermined angle, if the favorable biasing force (suction force) by the hinge device does not act, Will occur.

本発明は、このような問題を解決したもので、従来にない作用効果を発揮す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ものである。   The present invention solves such a problem, and provides an epoch-making hinge device that exhibits an unprecedented effect and an electronic device using the hinge device.

添付図面を参照して本発明の要旨を説明する。   The gist of the present invention will be described with reference to the accompanying drawings.

第一部材１と第二部材２とを回動自在に連結するヒンジ装置であって、互いに相対回動自在に設けられる前記第一部材１の回動と共に回動する合成樹脂製のカム部３と、前記第二部材２の回動と共に回動する合成樹脂製のカム係合部４とを有し、前記カム部３，前記カム係合部４の少なくとも一方を係合付勢機構５の付勢に抗して係合離反方向へ相対移動自在に設けることで、前記カム部３と前記カム係合部４との相対回動に際し、前記カム部３に設けた凸部３Ａと前記カム係合部４に設けた凹部４Ａとが前記係合付勢機構５により付勢されて凹凸係合する落ち込み係合途中において相対回動付勢力が生じるように構成したヒンジ装置において、前記カム部３の凸部３Ａが前記カム係合部４の凹部４Ａに凹凸係合する落ち込み係合途中において、前記凸部３Ａを支承して該凸部３Ａの外方向への変形移動を阻止する変形移動阻止部６を前記カム係合部４に設け、この変形移動阻止部６は、前記カム係合部４の外周面４ａに突状体６Ａを設けて構成され、この突状体６Ａは、前記カム係合部４の外周面４ａから突出状態となる突状部６ｂを有し、この突状部６ｂを、前記第二部材２に取り付けられ、前記カム係合部４を回り止め状態で設ける取付体９に設けたガイド部に係合してスライド自在となるスライド部としたことを特徴とするヒンジ装置に係るものである。 A hinge device that connects the first member 1 and the second member 2 in a freely rotatable manner, and is a synthetic resin cam portion 3 that rotates together with the rotation of the first member 1 provided in a relatively rotatable manner. And a synthetic resin cam engaging portion 4 that rotates together with the rotation of the second member 2, and at least one of the cam portion 3 and the cam engaging portion 4 of the engagement biasing mechanism 5. Protruding portions 3A provided on the cam portion 3 and the cam at the time of relative rotation between the cam portion 3 and the cam engaging portion 4 by being provided so as to be relatively movable in the disengagement direction against the urging force. In the hinge device configured such that a relative rotation biasing force is generated in the middle of the depression engagement in which the concave portion 4A provided in the engagement portion 4 is biased by the engagement biasing mechanism 5 to engage with the concave and convex portions. In the middle of the depression engagement in which the three convex portions 3A engage with the concave portions 4A of the cam engaging portion 4 , Provided the deformation movement preventing portion 6 for preventing the deformation movement of and support the protrusions 3A outwardly of the convex portion 3A on the cam engaging portion 4, this deformation movement preventing portion 6, the cam engagement The protrusion 4A is provided on the outer peripheral surface 4a of the portion 4, and this protrusion 6A has a protrusion 6b protruding from the outer peripheral surface 4a of the cam engaging portion 4. The portion 6b is a slide portion that is attached to the second member 2 and is a slide portion that is slidable by engaging with a guide portion provided on an attachment body 9 that is provided with the cam engaging portion 4 in a non-rotating state. The present invention relates to a hinge device.

また、前記カム部３の凸部３Ａが前記カム係合部４の凹部４Ａに凹凸係合する落ち込み係合途中において、前記凸部３Ａの外周面３ａを支承して該凸部３Ａの外方向への変形移動を阻止するように前記変形移動阻止部６を構成し、前記凸部３Ａの外周面３ａを前記カム部３の回動方向に湾曲する湾曲面に設定し、且つ、この凸部３Ａの外周面３ａと合致するように前記変形移動阻止部６の内面６ａを湾曲面に設定し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。 Further, in the middle of the depression engagement in which the convex portion 3A of the cam portion 3 engages with the concave portion 4A of the cam engaging portion 4, the outer peripheral surface 3a of the convex portion 3A is supported and the outward direction of the convex portion 3A. The deformation movement preventing portion 6 is configured to prevent deformation movement to the outer peripheral surface, the outer peripheral surface 3a of the convex portion 3A is set to a curved surface that is curved in the rotational direction of the cam portion 3, and the convex portion 3A are those of the hinge device according to claim 1 Symbol mounting, characterized in that the inner surface 6a of the deformation movement preventing portion 6 so as to match the outer peripheral surface 3a is set to a curved surface of the.

また、前記請求項１，２のいずれか１項に記載のヒンジ装置を枢着部に設け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。 In addition, the present invention relates to an electronic apparatus using a hinge device, wherein the hinge device according to any one of claims 1 and 2 is provided at a pivoting portion.

また、前記第一部材１若しくは第二部材２としての本体部と、これに重合する前記第二部材２若しくは第一部材１としての重合部とを重合状態から所定開放角度まで開閉できるように枢着する枢着部に、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電子機器に係るものである。 Further, the main body portion as the first member 1 or the second member 2 and the overlapping portion as the second member 2 or the first member 1 that overlaps with the main body portion can be pivoted so as to be opened and closed from the overlapped state to a predetermined opening angle. The present invention relates to an electronic apparatus using the hinge device according to any one of claims 1 to 3 at a pivoting portion to be worn.

本発明は上述のように構成したから、前述した従来例と異なり、カム部の凸部の外方向への変形移動を阻止することで回動付勢力が無くなる、若しくは、弱くなるようなことはなく、常に良好な回動付勢力が得られることになるなど従来にない作用効果を発揮する画期的なヒンジ装置となる。   Since the present invention is configured as described above, unlike the above-described conventional example, it is possible to eliminate or weaken the rotation biasing force by preventing the convex portion of the cam portion from being deformed outward. Therefore, it is an epoch-making hinge device that exhibits an unprecedented action and effect, such as always providing a favorable rotational biasing force.

また、請求項２記載の発明においては、より一層具体的な構造から確実に良好なカム部の凸部の外方向への変形移動を阻止し得る状態が得られることになるなど従来にない作用効果を発揮する画期的なヒンジ装置となる。 Further, in the invention described in claim 2 , an unprecedented action is obtained, such as a state in which the deformation movement of the convex portion of the cam portion can be surely prevented from an even more specific structure. It becomes a revolutionary hinge device that demonstrates the effect.

また、請求項３，４記載の発明においては、前述のような作用効果を発揮する極めて実用性に秀れた画期的なヒンジ装置を用いた電子機器を提供できることとなる。 In the inventions according to claims 3 and 4 , it is possible to provide an electronic apparatus using the innovative hinge device that exhibits the above-described effects and is extremely practical.

好適と考える本発明の実施形態を、図面に基づいて簡単に説明する。   Embodiments of the present invention considered to be suitable will be briefly described with reference to the drawings.

本発明に係るヒンジ装置を用い、例えば第一部材１と第二部材２との基部同士を枢着する場合、この第一部材１若しくは第二部材２にカム部３を回り止め状態とし、第二部材２若しくは第一部材１にカム係合部４を回り止め状態とする。   When the hinge device according to the present invention is used, for example, when the base portions of the first member 1 and the second member 2 are pivotally mounted, the cam portion 3 is prevented from rotating on the first member 1 or the second member 2, The cam engaging part 4 is set in the non-rotating state on the two members 2 or the first member 1.

このヒンジ装置は、カム部３，カム係合部４の少なくとも一方を係合付勢機構５の付勢に抗して係合離反方向へ相対移動自在に設けることで、カム部３とカム係合部４との相対回動に際し、カム部３に設けた凸部３Ａとカム係合部４に設けた凹部４Ａとが係合付勢機構５により付勢されて凹凸係合する落ち込み係合途中において相対回動付勢力が生じるように構成されている。   This hinge device is provided with at least one of the cam portion 3 and the cam engagement portion 4 so as to be relatively movable in the engagement / disengagement direction against the biasing force of the engagement biasing mechanism 5. In the relative rotation with the joint portion 4, the depression 3 </ b> A provided on the cam portion 3 and the depression 4 </ b> A provided on the cam engagement portion 4 are urged by the engagement urging mechanism 5 to engage with the concave and convex portions. A relative turning biasing force is generated in the middle.

従って、例えば本体部と重合部とからなる折畳式の携帯電話の枢着部に具備せしめた場合、本体部１に対して重合部２を所定角度開放した回動位置ではカム係合によって回動位置がロックされ、また重合閉塞した状態ではカム部３に設けた凸部３Ａとカム係合部４に設けた凹部４Ａとはカム係合途中にあり、回動付勢力（吸い込み力）による閉じ付勢が生じることになる。   Therefore, for example, when it is provided in a pivoting portion of a foldable mobile phone composed of a main body portion and a superposition portion, the superposition portion 2 is opened by a predetermined angle with respect to the main body portion 1 by a cam engagement. In a state where the moving position is locked and overlapped, the convex portion 3A provided on the cam portion 3 and the concave portion 4A provided on the cam engaging portion 4 are in the middle of the cam engagement, and are caused by a rotational biasing force (suction force). A closing bias will occur.

ところで、本発明は、カム部３の凸部３Ａがカム係合部４の凹部４Ａに凹凸係合する落ち込み係合途中において、凸部３Ａを支承して該凸部３Ａの外方向への変形移動を阻止する変形移動阻止部６を具備している。   By the way, in the present invention, during the depression engagement in which the convex portion 3A of the cam portion 3 engages with the concave portion 4A of the cam engaging portion 4, the convex portion 3A is supported to deform outwardly of the convex portion 3A. A deformation movement blocking unit 6 for blocking the movement is provided.

例えばこの変形移動阻止部６がない場合、カム部３の凸部３Ａがカム係合部４の凹部４Ａに凹凸係合する落ち込み係合途中において、付勢体７の付勢により凹部４Ａに押圧状態となる凸部３Ａが外方に変形移動することでカム部３とカム係合部４が余計に相対回動してしまう場合があり、よって、カム係合部４に対してカム部３が完全に落ち込み係合した際には回動付勢力（吸い込み力）が無くなってしまう、若しくは、弱くなってしまうという問題点が生じる。   For example, when the deformation movement preventing portion 6 is not provided, the convex portion 3A of the cam portion 3 is pressed against the concave portion 4A by the urging force of the urging body 7 during the depression engagement in which the convex and concave portions engage with the concave portion 4A of the cam engaging portion 4. When the convex portion 3 </ b> A that is in the state is deformed and moved outward, the cam portion 3 and the cam engagement portion 4 may be excessively rotated relative to each other. When the lens is completely depressed and engaged, the rotational urging force (suction force) is lost or weakened.

この点、本発明は、この凸部３Ａを支承して該凸部３Ａの外方向への変形移動を阻止する変形移動阻止部６を具備する為、凹部４Ａに対して凸部３Ａが常に良好な位置（設計通りの位置）での係合途中となる状態が得られ、良好な回動付勢力（吸い込み力）が確実に得られることになる。   In this respect, since the present invention includes the deformation movement preventing portion 6 that supports the convex portion 3A and prevents the convex portion 3A from being deformed outward, the convex portion 3A is always better than the concave portion 4A. Thus, a state of being engaged at the correct position (position as designed) is obtained, and a favorable rotational biasing force (suction force) is reliably obtained.

従って、前述した従来例と異なり、カム部３の凸部３Ａの外方向への変形移動を阻止することで回動付勢力が無くなる、若しくは、弱くなるようなことはなく、常に良好な回動付勢力が得られることになるなど、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。   Accordingly, unlike the above-described conventional example, the rotation biasing force is not lost or weakened by preventing the outward deformation of the convex portion 3A of the cam portion 3, and the rotation is always good. An epoch-making hinge device excellent in practicality and an electronic device using the hinge device can be obtained.

また、前記第一部材１と前記第二部材２とを重合閉塞状態から所定角度回動させた開放状態となるまで回動自在に連結するヒンジ装置であって、前記第一部材１と前記第二部材２との少なくとも重合閉塞状態の際、前記カム部３に設けた凸部３Ａと前記カム係合部４に設けた凹部４Ａとが前記係合付勢機構５により付勢されて凹凸係合する落ち込み係合途中となるように構成し、前記カム部３の凸部３Ａが前記カム係合部４の凹部４Ａに凹凸係合する落ち込み係合途中において、前記凸部３Ａを支承して前記凸部３Ａの外方向への変形移動を阻止するように前記変形移動阻止部６を構成した場合には、特にカム部３の凸部３Ａが外方向へ変形移動する場合が多いと考えられる第一部材１と第二部材２との少なくとも重合閉塞状態において、変形移動阻止部６は確実に凸部３Ａを支承して該凸部３Ａの外方向への変形移動を阻止することになる。   The first device 1 and the second member 2 are hinge devices that rotatably connect the first member 1 and the second member 2 until they reach an open state in which the first member 1 and the second member 2 are rotated by a predetermined angle. At least in the overlapped state with the two members 2, the convex portion 3A provided in the cam portion 3 and the concave portion 4A provided in the cam engaging portion 4 are urged by the engagement urging mechanism 5 to be concavo-convex. The convex portion 3A of the cam portion 3 is supported by the convex portion 3A in the middle of the concave engagement in which the convex portion 3A of the cam portion 3 engages with the concave portion 4A of the cam engaging portion 4. When the deformation movement preventing portion 6 is configured so as to prevent the convex portion 3A from being deformed outward, it is considered that the convex portion 3A of the cam portion 3 is often deformed and moved outward. At least in the polymerization blockage state of the first member 1 and the second member 2, Movement preventing portion 6 reliably support the convex portion 3A will prevent deformation movement in the outward convex section 3A by.

また、第一部材１と前記第二部材２とを重合閉塞状態から開放状態とする回動の際、前記カム部３と前記カム係合部４とが相対回動することで前記カム係合部４の凹部４Ａに対して係合途中から係脱した前記カム部３の凸部３Ａが再び前記凹部４Ａに係合途中となるように設けて、前記第一部材１と前記第二部材２との重合閉塞状態及び開放状態のいずれにおいても相対回動付勢力が生じるように構成し、前記カム係合部４における前記凹部４Ａの側方位置に該カム係合部４の回動方向に所定巾を有する突状体６Ａを設け、この突状体６Ａを、前記第一部材１と前記第二部材２との重合閉塞状態及び開放状態のいずれにおいても前記凸部３Ａを支承して前記凸部３Ａの外方向への変形移動を阻止する前記変形移動阻止部６として構成した場合には、例えば一つの変形移動阻止部６において第一部材１と第二部材２との重合閉塞状態及び開放状態双方の場面において凹部４Ａに対して落ち込み係合途中となる凸部３Ａを支承して該凸部３Ａの外方向への変形移動を阻止することになる。   In addition, when the first member 1 and the second member 2 are turned from the overlapped closed state to the opened state, the cam portion 3 and the cam engaging portion 4 are rotated relative to each other, so that the cam engagement is performed. The convex part 3A of the cam part 3 disengaged from the middle of engagement with the concave part 4A of the part 4 is provided so as to be in the middle of engagement with the concave part 4A again, and the first member 1 and the second member 2 are provided. In both the superposed closed state and the open state, a relative rotational biasing force is generated, and the cam engaging portion 4 is positioned laterally of the recess 4A in the rotational direction of the cam engaging portion 4. A projecting body 6A having a predetermined width is provided, and the projecting body 6A is supported by supporting the projecting portion 3A in both the closed state and the open state of the first member 1 and the second member 2. When configured as the deformation movement blocking portion 6 for blocking the outward deformation movement of the convex portion 3A For example, in one deformation movement blocking portion 6, the first member 1 and the second member 2 are supported by the convex portion 3 </ b> A that falls into the concave portion 4 </ b> A in both the closed state and the open state of the first member 1. The deformation movement of the convex portion 3A in the outward direction is prevented.

また、前記凸部３Ａの外周面３ａを前記カム部３の回動方向に湾曲する湾曲面に設定し、且つ、この凸部３Ａの外周面３ａと合致するように前記変形移動阻止部６の内面６ａを湾曲面に設定した場合には、カム部３の凸部３Ａと変形移動阻止部６の内面６ａとの円滑な摺動が達成されることになる為、カム部３の回動に支障を来たすことなく（大きな摩擦抵抗とならず）良好に支承することができる。   Further, the outer peripheral surface 3a of the convex portion 3A is set to a curved surface that is curved in the rotational direction of the cam portion 3, and the deformation movement preventing portion 6 of the deformable movement preventing portion 6 is matched with the outer peripheral surface 3a of the convex portion 3A. When the inner surface 6a is set to a curved surface, smooth sliding between the convex portion 3A of the cam portion 3 and the inner surface 6a of the deformation movement preventing portion 6 is achieved. It can be satisfactorily supported without any hindrance (not a large frictional resistance).

また、前記カム部３の凸部３Ａが前記カム係合部４の凹部４Ａに凹凸係合する落ち込み係合途中において、前記凸部３Ａを支承して前記凸部３Ａの外方向への変形移動を阻止する変形移動阻止部６を前記カム係合部４に設け、この変形移動阻止部６は前記カム係合部４の外周面４ａに突出する突状部６ｂを有し、この突状部６ｂを、前記第二部材２に取り付けられ、前記カム係合部４を回り止め状態で設ける取付体９に設けたガイド部に係合してスライド自在となるスライド部とした場合には、変形移動阻止部６に本発明に係るヒンジ装置を構成するに必須の構成を兼用具備せしめた極めて効率の良い構造であり、カム部３における凸部３Ａの外方向への変形移動を阻止する構造を簡易に具備することができる。   Further, in the middle of the depression engagement in which the convex portion 3A of the cam portion 3 engages with the concave portion 4A of the cam engaging portion 4, the convex portion 3A is supported to deform and move outwardly. The cam engagement portion 4 is provided with a deformation movement prevention portion 6 that prevents the movement, and the deformation movement prevention portion 6 has a protrusion 6b that protrudes from the outer peripheral surface 4a of the cam engagement portion 4, and this protrusion If 6b is a slide part that is attached to the second member 2 and is slidable by engaging with a guide part provided on an attachment body 9 provided with the cam engagement part 4 in a non-rotating state, An extremely efficient structure in which the movement preventing portion 6 is also provided with a configuration essential for constituting the hinge device according to the present invention, and a structure for preventing the convex portion 3A in the cam portion 3 from being deformed in the outward direction. It can be provided easily.

本発明の具体的な一実施例について図面に基づいて説明する。   A specific embodiment of the present invention will be described with reference to the drawings.

本実施例は、図１に図示したように折畳式の携帯電話の本体部と重合部との枢着部に本発明のヒンジ装置Ｈを設けた場合を示しており、本体部（第一部材１）の基部に取付孔を設けて第一取付部１ａを設け、重合部（第二部材２）の基部に取付孔を設けて第二取付部２ａを設け、この第一取付部１ａと第二取付部２ａとが連通するように本体部（第一部材１）と重合部（第二部材２）との基部同士を組み合わせ、この第一取付部１ａと第二取付部２ａとに棒状のヒンジ装置Ｈが挿入配設されるように構成している。   In the present embodiment, as shown in FIG. 1, the hinge device H of the present invention is provided at the pivotal connection portion between the main body portion and the overlapping portion of the folding cellular phone. A mounting hole is provided in the base of the member 1) to provide the first mounting portion 1a, a mounting hole is provided in the base of the overlapping portion (second member 2) to provide the second mounting portion 2a, and the first mounting portion 1a and The base portions of the main body portion (first member 1) and the overlapping portion (second member 2) are combined so that the second attachment portion 2a communicates, and the first attachment portion 1a and the second attachment portion 2a are in a rod shape. The hinge device H is inserted and arranged.

この第二取付部２ａには回り止め状態にヒンジ装置Ｈに係るケース状の取付体９が挿入係合され、第一取付部１ａには回り止め状態にヒンジ装置Ｈに係るカム部３が挿入係合されるように構成している。   A case-like mounting body 9 according to the hinge device H is inserted and engaged with the second mounting portion 2a in a detent state, and a cam portion 3 according to the hinge device H is inserted into the first mounting portion 1a with a detent state. It is configured to be engaged.

この本実施例のヒンジ装置Ｈについて更に説明する。   The hinge device H of this embodiment will be further described.

回動軸部７を軸に互いに相対回動自在に設けられ、前記本体部１（第一部材）の回動と共に回動する合成樹脂製のカム部３と、前記重合部２（第二部材）の回動と共に回動する合成樹脂製のカム係合部４とを有し、前記カム部３，前記カム係合部４の少なくとも一方を係合付勢機構５の付勢に抗して係合離反方向へ相対移動自在に設けることで、前記カム部３と前記カム係合部４との相対回動に際し、前記回動軸部７を間に配した前記カム部３の内面対向位置（回動方向の１８０度位置）に設けた一対の凸部３Ａと、前記回動軸部７を間に配した前記カム係合部４の内面対向位置（回動方向の１８０度位置）に設けた一対の凹部４Ａとが、前記付勢機構５により付勢されて凹凸係合する落ち込み係合途中において相対回動付勢力が生じるように構成されている。尚、回動軸部７はカム部３若しくはカム係合部４のいずれか一方と一体成形した構造でも良く、また、カム部３に係る凸部３Ａ及びカム係合部４に係る凹部４Ａ夫々の数は２つに限らず、１つでも３つ以上でも良い。   A synthetic resin cam portion 3 which is provided so as to be rotatable relative to each other about a rotation shaft portion 7 and rotates with rotation of the main body portion 1 (first member), and the overlapping portion 2 (second member). ) And a synthetic resin cam engaging portion 4 that rotates together with the rotation of the cam engaging portion 4, and at least one of the cam portion 3 and the cam engaging portion 4 against the urging force of the engaging urging mechanism 5. When the cam portion 3 and the cam engagement portion 4 are relatively rotated, the cam portion 3 is opposed to the inner surface of the cam portion 3 with the rotation shaft portion 7 interposed therebetween. At a position facing the inner surface (180 degree position in the rotation direction) of the cam engagement part 4 with the pair of convex parts 3A provided at (180 degree position in the rotation direction) and the rotation shaft part 7 interposed therebetween. The pair of recesses 4A provided is biased by the biasing mechanism 5 so that a relative rotational biasing force is generated in the middle of the depression engagement in which the concave and convex engagement is performed. It is configured. The rotating shaft portion 7 may have a structure integrally formed with either the cam portion 3 or the cam engaging portion 4, and each of the convex portion 3 </ b> A related to the cam portion 3 and the concave portion 4 </ b> A related to the cam engaging portion 4. The number of is not limited to two and may be one or three or more.

具体的には、重合部２に設けた第二取付部２ａに回り止め状態に挿入係合するケース状の取付体９内に回り止め状態にカム係合部４を設け、このカム係合部４は、前記取付体９内に設けた係合付勢機構５（係合付勢バネ）に抗して取付体９内でスライド移動自在に設け、このカム係合部４に対向して係合付勢バネ５によりカム係合部４と付勢係合するカム部３を設け、このカム部３を前記取付体９の一側に突出状態に設けている。本実施例では、取付体９の内方側に配したカム係合部４の一対の凹部４Ａと係合する一対の凸部３Ａを有するカム部３を回動軸部７を介して連結して取付体９の一側から突出するように構成し、この突出部分が前記本体部１の第一取付部１ａに回り止め状態に挿入係合するように構成している。カム部３は回動軸部７に回り止め状態で被嵌連結され、カム係合部４は回動軸部７に回動可能な状態で被嵌連結されている。尚、各凸部３Ａの内周面は回動軸部７を受ける軸受面に設定されている。   Specifically, a cam engagement portion 4 is provided in a non-rotating state in a case-like attachment body 9 that is inserted and engaged in a non-rotating state in the second mounting portion 2a provided in the overlapping portion 2, and this cam engaging portion 4 is provided so as to be slidable in the mounting body 9 against the engagement biasing mechanism 5 (engagement biasing spring) provided in the mounting body 9, and is opposed to the cam engagement portion 4. A cam portion 3 that is biased and engaged with the cam engaging portion 4 is provided by a combined biasing spring 5, and the cam portion 3 is provided in a protruding state on one side of the attachment body 9. In the present embodiment, the cam portion 3 having a pair of convex portions 3A that engage with the pair of concave portions 4A of the cam engaging portion 4 disposed on the inner side of the attachment body 9 is connected via the rotating shaft portion 7. The protruding portion 9 is configured to protrude from one side of the mounting body 9, and the protruding portion is configured to be inserted into and engaged with the first mounting portion 1 a of the main body portion 1 in a non-rotating state. The cam portion 3 is fitted and connected to the rotating shaft portion 7 in a non-rotating state, and the cam engaging portion 4 is fitted and connected to the rotating shaft portion 7 in a rotatable state. The inner peripheral surface of each convex portion 3A is set as a bearing surface that receives the rotation shaft portion 7.

従って、前記本体部１に対して前記重合部２を回動させると、前記係合付勢バネ５に抗して前記カム係合部４を離反させつつカム係合部４の各凹部４Ａに対してカム部３の各凸部３Ａが係脱して相対回動し、このカム係合部４とカム部３とが付勢係合した状態では前記本体部１に対する前記重合部２の回動位置が保持されるように構成している。   Therefore, when the overlapping portion 2 is rotated with respect to the main body portion 1, the cam engaging portion 4 is separated from the concave portion 4 </ b> A of the cam engaging portion 4 against the engaging biasing spring 5. On the other hand, each convex portion 3A of the cam portion 3 is engaged and disengaged and relatively rotated, and when the cam engaging portion 4 and the cam portion 3 are biasedly engaged, the overlapping portion 2 rotates relative to the main body portion 1. The position is maintained.

即ち、本実施例では、本体部１に対して重合部２を重合閉塞状態から所定角度回動させた開放状態へと回動させると、重合部２の回動に伴って回り止め状態に第二取付部２ａに係合している取付体９が回動し、この取付体９に回り止め状態に内装されているカム係合部４がカム部３に対して回動する。このカム部３は本体部１の第一取付部１ａに回り止め状態に固定されている。   That is, in this embodiment, when the overlapping portion 2 is rotated from the overlapped closed state to the open state rotated by a predetermined angle with respect to the main body portion 1, the rotation is stopped when the overlapping portion 2 rotates. The attachment body 9 engaged with the two attachment portions 2 a rotates, and the cam engagement portion 4 housed in the attachment body 9 so as to prevent rotation rotates relative to the cam portion 3. The cam portion 3 is fixed to the first mounting portion 1a of the main body portion 1 in a non-rotating state.

そして、カム部３に対してカム係合部４が回動する際には、カム係合部４は取付体９内において係合付勢バネ５に抗してカム部３から離反移動しつつカム係合が係脱してすり合わせ状態で回動する。このカム係合の形状や係合付勢バネの押圧力の設定によっては、係脱回動位置で手を放せばその位置で重合部２が停止するフリーストップが実現できるように構成することもでき、また係脱した後再びすり合わせ面の傾斜によってカム係合しようとする回動付勢力が生じるように構成しても良い。   When the cam engagement portion 4 rotates with respect to the cam portion 3, the cam engagement portion 4 moves away from the cam portion 3 against the engagement biasing spring 5 in the attachment body 9. The cam engagement is engaged and disengaged, and the cam engagement is rotated. Depending on the shape of the cam engagement and the setting of the pressing force of the engagement biasing spring, it is possible to realize a free stop in which the overlapping portion 2 stops at that position if the hand is released at the engagement / disengagement rotation position. Alternatively, it may be configured such that after the engagement / disengagement, a rotational biasing force to try to engage the cam is generated again by the inclination of the mating surface.

即ち、本体部１と重合部２を少し回動した回動範囲ではカム部３がカム係合部４から係脱しきらずに重合閉塞状態となるまで戻り閉じ付勢力が生じるように構成し、この回動範囲を超えて回動すると、カム係合が係脱するが、すり合わせ面の傾斜によって再びカム係合しようと開き付勢力が生じ、自動的に開き回動し、再びカム係合することで開放位置（開放状態）がこのカム係合によって保持される。   That is, in the rotation range in which the main body portion 1 and the overlapping portion 2 are slightly rotated, the cam portion 3 is not fully disengaged from the cam engaging portion 4 and is returned until the overlapped closed state is generated. When the rotation exceeds the rotation range, the cam engagement is disengaged, but an opening biasing force is generated to try to engage the cam again due to the inclination of the mating surface, and the opening is automatically rotated and engaged again. Thus, the open position (open state) is held by this cam engagement.

つまり、本体部１と重合部２とが重合閉塞した状態では、完全にカム部３の各凸部３Ａとカム係合部４の各凹部４Ａとがカム係合せず、係合途中位置となるように設定することで閉塞状態において閉じ付勢が生じることになり、一方、本体部１と重合部２とが最大限に回動させた開放状態では、完全にカム部３の各凸３Ａとカム係合部４の各凹部４Ａとがカム係合せず、係合途中位置となるように設定することで開放状態において開き付勢が生じることになる。   That is, in a state where the main body 1 and the overlapping portion 2 are overlapped and closed, the respective convex portions 3A of the cam portion 3 and the respective concave portions 4A of the cam engaging portion 4 are not cam-engaged and are in the middle of engagement. By setting as described above, a closing bias is generated in the closed state. On the other hand, in the opened state in which the main body portion 1 and the overlapping portion 2 are rotated to the maximum, each protrusion 3A of the cam portion 3 is completely By setting so that each recessed part 4A of the cam engaging part 4 is not cam-engaged and is in the middle of engagement, an opening bias is generated in the open state.

本実施例では、このようなヒンジ装置Ｈにおいて、カム部３の各凸部３Ａがカム係合部４の各凹部４Ａに凹凸係合する落ち込み係合途中において、各凸部３Ａを支承して該凸部３Ａの外方向への変形移動を阻止する変形移動阻止部６を具備している。   In this embodiment, in such a hinge device H, each convex portion 3A is supported in the middle of the depression engagement in which each convex portion 3A of the cam portion 3 engages with each concave portion 4A of the cam engaging portion 4 in an uneven manner. There is provided a deformation movement preventing portion 6 for preventing the convex portion 3A from deforming and moving outward.

具体的には、前述したように本体部１と重合部２との重合閉塞状態及び開放状態の際、カム部３に設けた各凸部３Ａとカム係合部４に設けた各凹部４Ａとが係合付勢バネ５により付勢されて凹凸係合する落ち込み係合途中となるように構成しているが、このカム部３の各凸部３Ａがカム係合部４の各凹部４Ａに凹凸係合する落ち込み係合途中において、各凸部３Ａを支承して該各凸部３Ａの外方向への変形移動を阻止するように変形移動阻止部６を構成している。   Specifically, as described above, when the main body portion 1 and the overlapping portion 2 are in the overlapped closed state and in the open state, each convex portion 3A provided in the cam portion 3 and each concave portion 4A provided in the cam engaging portion 4 Are energized by the engagement biasing spring 5 so that they are in the middle of the depression engagement where the concave and convex engagement is carried out, but each convex portion 3A of the cam portion 3 is formed in each concave portion 4A of the cam engaging portion 4. The deformation movement preventing portion 6 is configured so as to support the respective convex portions 3A and prevent the respective convex portions 3A from being deformed in the outward direction during the depression engagement in which the concave and convex portions are engaged.

更に具体的には、本体部１と重合部２とを重合閉塞状態から開放状態とする回動の際、カム部３とカム係合部４とが相対回動（約１６０度回動）することでカム係合部４の各凹部４Ａに対して係合途中から係脱したカム部３の各凸部３Ａが再び凹部４Ａに係合途中となるように設けて、本体部１と重合部２との重合閉塞状態及び開放状態のいずれにおいても相対回動付勢力が生じるように構成されているが、カム係合部４の周面所定位置にしてカム係合部４における各凹部４Ａの側方位置に該カム係合部４の回動方向に所定巾を有する突状体６Ａを一体成形し、この突状体６Ａを、本体部１と重合部２との重合閉塞状態及び開放状態のいずれにおいても各凸部３Ａの外周面３ａを支承して該各凸部３Ａの外方向への変形移動を阻止する変形移動阻止部６として構成している。   More specifically, when the main body 1 and the overlapping portion 2 are turned from the overlapped closed state to the opened state, the cam portion 3 and the cam engaging portion 4 are turned relative to each other (about 160 degrees). Thus, each of the convex portions 3A of the cam portion 3 disengaged from the middle of engagement with the respective concave portions 4A of the cam engaging portion 4 is provided so as to be engaged with the concave portion 4A again. 2 is configured so that a relative rotational biasing force is generated both in the overlapped closed state and in the open state. However, the cam engagement portion 4 has a predetermined position on the circumferential surface of each recess 4A. A projecting body 6A having a predetermined width in the rotational direction of the cam engaging portion 4 is integrally formed at a lateral position, and the projecting body 6A is overlapped and opened between the main body 1 and the overlapping section 2. In any of the above, the deformation transition that supports the outer peripheral surface 3a of each convex portion 3A and prevents the outward deformation of each convex portion 3A. Constitute a blocking unit 6.

この変形移動阻止部６を構成する突状体６Ａは、カム係合部４の周面に一体成形されており、カム係合部４の回動方向と直交する放射方向に所定の肉厚を有するように設けられている。尚、変形移動阻止部６（突状体６Ａ）はカム係合部４と別体としても良い。   The projecting body 6A constituting the deformation movement preventing portion 6 is integrally formed on the peripheral surface of the cam engaging portion 4 and has a predetermined thickness in a radial direction orthogonal to the rotational direction of the cam engaging portion 4. It is provided to have. The deformation movement preventing part 6 (projecting body 6A) may be separated from the cam engaging part 4.

また、カム部３に係る各凸部３Ａの外周面３ａは、カム部３の回動方向に湾曲する湾曲面に設定され、且つ、この各凸部３Ａの外周面３ａと合致するように変形移動阻止部６（突状体６Ａ）の内面６ａを湾曲面に設定されている。   Moreover, the outer peripheral surface 3a of each convex part 3A which concerns on the cam part 3 is set to the curved surface curved in the rotation direction of the cam part 3, and it deform | transforms so that it may correspond with the outer peripheral surface 3a of this each convex part 3A. The inner surface 6a of the movement blocking part 6 (projecting body 6A) is set as a curved surface.

従って、カム部３は凸部３Ａの外周面３ａに変形移動阻止部６が触れたとしても円滑な摺動となりその回動に支障が生じることは無い。   Therefore, the cam portion 3 is smoothly slid even if the deformation movement preventing portion 6 touches the outer peripheral surface 3a of the convex portion 3A, and there is no hindrance to the rotation.

また、変形移動阻止部６は、カム係合部４の外周面４ａに突出する突状部６ｂを有し、この突状部６ｂを重合部２の第二取付部２ａに取り付けられ、カム係合部４を回り止め状態で収納する取付体９に設けたガイド部９ａ（ガイド凹条若しくはガイド孔）に係合してスライド自在となるスライド部としている。   Further, the deformation movement preventing portion 6 has a protruding portion 6b that protrudes from the outer peripheral surface 4a of the cam engaging portion 4, and this protruding portion 6b is attached to the second mounting portion 2a of the overlapping portion 2, and is connected to the cam engaging portion. The sliding portion is slidable by engaging with a guide portion 9a (guide recess or guide hole) provided on the attachment body 9 that stores the joint portion 4 in a non-rotating state.

従って、カム係合部４は、変形移動阻止部６の突状部６ｂと取付体９のガイド部９ａとからなるスライド構造部及び回動軸部７に沿って当該取付体９内を回り止め状態でスライド移動することになり、本体部１に設けられるカム部３と係合離反方向に相対移動自在となる。   Accordingly, the cam engaging portion 4 is prevented from rotating in the mounting body 9 along the slide structure portion and the rotation shaft portion 7 formed by the projecting portion 6 b of the deformation movement preventing portion 6 and the guide portion 9 a of the mounting body 9. It will be slid in the state, and can be moved relative to the cam part 3 provided in the main body part 1 in the direction of engagement / disengagement.

本実施例は上述のように構成したから、例えば本体部１と重合部２とからなる折畳式の携帯電話の枢着部に具備せしめた場合、本体部１に対して重合部２を所定角度開放した回動位置ではカム係合によって回動位置がロックされ、また重合閉塞した状態ではカム部３に設けた各凸部３Ａとカム係合部４に設けた各凹部４Ａとはカム係合途中にあり、回動付勢力（吸い込み力）による閉じ付勢が生じることになる。   Since the present embodiment is configured as described above, for example, when the folding portion of the folding cellular phone including the main body portion 1 and the overlapping portion 2 is provided, the overlapping portion 2 is predetermined with respect to the main body portion 1. In the rotation position where the angle is released, the rotation position is locked by the cam engagement, and in the state where the overlap is closed, each convex portion 3A provided in the cam portion 3 and each concave portion 4A provided in the cam engagement portion 4 are connected to the cam. The closing bias is generated by the rotational biasing force (suction force).

また、本実施例は、カム部３の各凸部３Ａがカム係合部４の各凹部４Ａに凹凸係合する落ち込み係合途中において、各凸部３Ａを支承して該各凸部３Ａの外方向への変形移動を阻止する変形移動阻止部６を具備している為、各凹部４Ａに対して各凸部３Ａが常に良好な位置での係合途中となる状態が得られ、良好な回動付勢力（吸い込み力）が確実に得られることになる。   Further, in the present embodiment, each convex portion 3A of the cam portion 3 is supported by each convex portion 3A while the convex portion 3A of the cam portion 3 is engaged with the concave portion 4A of the cam engaging portion 4 so that the concave portion 4A is engaged. Since the deformation movement preventing portion 6 that prevents the deformation movement in the outward direction is provided, each convex portion 3A is always engaged with each concave portion 4A at a good position, and the good state is obtained. A rotational biasing force (suction force) can be obtained with certainty.

よって、本実施例によれば、前述した従来例と異なり、カム部３の各凸部３Ａの外方向への変形移動を阻止することで回動付勢力が無くなる、若しくは、弱くなるようなことはなく、常に良好な回動付勢力が得られることになる。   Therefore, according to the present embodiment, unlike the above-described conventional example, the rotational biasing force is eliminated or weakened by preventing the convex portion 3A of the cam portion 3 from being deformed in the outward direction. There will always be a good rotational biasing force.

また、本実施例は、カム係合部４における各凹部４Ａの側方位置に該カム係合部４の回動方向に所定巾を有する突状体６Ａを設け、この突状体６Ａを、本体部１と重合部２との重合閉塞状態及び開放状態のいずれにおいても各凸部３Ａを支承して該各凸部３Ａの外方向への変形移動を阻止する変形移動阻止部６として構成したから、本体部１と重合部２との重合閉塞状態及び開放状態双方において、変形移動阻止部６は確実に各凸部３Ａを支承して該各凸部３Ａの外方向への変形移動を阻止することになる。   Further, in this embodiment, a protruding body 6A having a predetermined width in the rotational direction of the cam engaging portion 4 is provided at a lateral position of each recess 4A in the cam engaging portion 4, and this protruding body 6A is Each of the main body 1 and the overlapping portion 2 is configured as a deformation movement preventing portion 6 that supports each convex portion 3A and prevents the convex portion 3A from being deformed in the outward direction in both the closed state and the open state. Therefore, in both the closed state and the open state of the main body part 1 and the overlapping part 2, the deformation movement preventing part 6 reliably supports each convex part 3A and prevents the convex part 3A from deforming outwardly. Will do.

また、本実施例は、各凸部３Ａの外周面３ａをカム部３の回動方向に湾曲する湾曲面に設定し、且つ、この各凸部３Ａの外周面３ａと合致するように変形移動阻止部６の内面６ａを湾曲面に設定したから、カム部３の各凸部３Ａと変形移動阻止部６の内面６ａとの円滑な摺動が達成されることになる為、カム部３の回動に支障を来たすことなく（大きな摩擦抵抗とならず）良好に支承することができる。   Further, in this embodiment, the outer peripheral surface 3a of each convex portion 3A is set to a curved surface that curves in the rotational direction of the cam portion 3, and is deformed and moved so as to coincide with the outer peripheral surface 3a of each convex portion 3A. Since the inner surface 6a of the blocking portion 6 is set to be a curved surface, smooth sliding between each convex portion 3A of the cam portion 3 and the inner surface 6a of the deformation movement blocking portion 6 is achieved. It can be satisfactorily supported without any hindrance to rotation (not a large frictional resistance).

また、本実施例は、変形移動阻止部６は、カム係合部４の外周面４ａに突出する突状部６ｂを有し、この突状部６ｂを重合部２の第二取付部２ａに取り付けられ、カム係合部４を回り止め状態で収納する取付体９に設けたガイド部９ａに係合してスライド自在となるスライド部としたから、変形移動阻止部６に本実施例に係るヒンジ装置Ｈを構成するに必須の構成を具備した極めて効率の良い構造であり、カム部３の凸部３Ａの外方向への変形移動を阻止する構造を簡易に具備することができる。   Further, in this embodiment, the deformation movement preventing portion 6 has a protruding portion 6 b that protrudes from the outer peripheral surface 4 a of the cam engaging portion 4, and this protruding portion 6 b is used as the second mounting portion 2 a of the overlapping portion 2. Since the slide portion is slidable by engaging with the guide portion 9a provided on the attachment body 9 that is attached and stores the cam engagement portion 4 in a non-rotating state, the deformation movement preventing portion 6 according to the present embodiment. It is an extremely efficient structure having a configuration essential for configuring the hinge device H, and can easily include a structure that prevents the convex portion 3A of the cam portion 3 from being deformed in the outward direction.

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。   Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

本実施例の使用状態説明図である。It is use condition explanatory drawing of a present Example. 本実施例を示す斜視図である。It is a perspective view which shows a present Example. 本実施例の分解斜視図である。It is a disassembled perspective view of a present Example. 本実施例に係る要部の分解斜視図である。It is a disassembled perspective view of the principal part which concerns on a present Example. 本実施例に係る要部の動作説明図である。It is operation | movement explanatory drawing of the principal part which concerns on a present Example. 本実施例に係る要部の動作説明図である。It is operation | movement explanatory drawing of the principal part which concerns on a present Example. 本実施例の動作説明図である。It is operation | movement explanatory drawing of a present Example. 従来例に係る要部の動作説明図である。It is operation | movement explanatory drawing of the principal part which concerns on a prior art example. 従来例に係る要部の動作説明図である。It is operation | movement explanatory drawing of the principal part which concerns on a prior art example.

１ 第一部材
２ 第二部材
３ カム部
３Ａ 凸部
３ａ 外周面
４ カム係合部
４Ａ 凹部
４ａ 外周面
５ 係合付勢機構
６ 変形移動阻止部
６Ａ 突状体
６ａ 内面
６ｂ 突状部
９ 取付体 DESCRIPTION OF SYMBOLS 1 1st member 2 2nd member 3 Cam part 3A Convex part 3a Outer peripheral surface 4 Cam engaging part 4A Concave part 4a Outer peripheral surface 5 Engagement biasing mechanism 6 Deformation movement prevention part 6A Projection body 6a Inner surface 6b Projection part 9 Attachment body

Claims (4)

第一部材と第二部材とを回動自在に連結するヒンジ装置であって、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合成樹脂製のカム部と、前記第二部材の回動と共に回動する合成樹脂製のカム係合部とを有し、前記カム部，前記カム係合部の少なくとも一方を係合付勢機構の付勢に抗して係合離反方向へ相対移動自在に設けることで、前記カム部と前記カム係合部との相対回動に際し、前記カム部に設けた凸部と前記カム係合部に設けた凹部とが前記係合付勢機構により付勢されて凹凸係合する落ち込み係合途中において相対回動付勢力が生じるように構成したヒンジ装置において、前記カム部の凸部が前記カム係合部の凹部に凹凸係合する落ち込み係合途中において、前記凸部を支承して該凸部の外方向への変形移動を阻止する変形移動阻止部を前記カム係合部に設け、この変形移動阻止部は、前記カム係合部の外周面に突状体を設けて構成され、この突状体は、前記カム係合部の外周面から突出状態となる突状部を有し、この突状部を、前記第二部材に取り付けられ、前記カム係合部を回り止め状態で設ける取付体に設けたガイド部に係合してスライド自在となるスライド部としたことを特徴とするヒンジ装置。 A hinge device that rotatably connects a first member and a second member, the cam portion made of a synthetic resin that rotates together with the rotation of the first member provided so as to be rotatable relative to each other; A synthetic resin cam engaging portion that rotates with the rotation of the two members, and at least one of the cam portion and the cam engaging portion is disengaged against the biasing force of the engagement biasing mechanism. When the cam portion and the cam engaging portion are rotated relative to each other, the convex portion provided on the cam portion and the concave portion provided on the cam engaging portion are engaged with each other. In the hinge device configured to generate a relative rotation urging force in the middle of the depression engagement that is urged by the urging mechanism to engage with the concave and convex portions, the convex portion of the cam portion engages with the concave portion of the cam engaging portion. In the middle of depression engagement, the convex part is supported and moved in the outward direction. The deformation movement preventing portion for preventing provided in the cam engagement portion, the deformation movement preventing portion is formed by providing the projecting bodies on the outer circumferential surface of said cam engaging portion, the projecting bodies, the cam engagement A projecting portion protruding from the outer peripheral surface of the portion, and the projecting portion is attached to the guide member provided on the attachment body attached to the second member and provided with the cam engaging portion in a non-rotating state. A hinge device characterized in that it is a slide part that is slidable together. 前記カム部の凸部が前記カム係合部の凹部に凹凸係合する落ち込み係合途中において、前記凸部の外周面を支承して該凸部の外方向への変形移動を阻止するように前記変形移動阻止部を構成し、前記凸部の外周面を前記カム部の回動方向に湾曲する湾曲面に設定し、且つ、この凸部の外周面と合致するように前記変形移動阻止部の内面を湾曲面に設定したことを特徴とする請求項１記載のヒンジ装置。 In the middle of depression engagement in which the convex portion of the cam portion engages with the concave portion of the cam engaging portion, the outer peripheral surface of the convex portion is supported to prevent deformation of the convex portion in the outward direction. The deformation movement preventing portion is configured, the outer peripheral surface of the convex portion is set to a curved surface that is curved in the rotation direction of the cam portion, and the deformation movement preventing portion is matched with the outer peripheral surface of the convex portion. claim 1 Symbol placement of the hinge device is characterized in that setting the curved surface of the inner surface of. 前記請求項１，２のいずれか１項に記載のヒンジ装置を枢着部に設けたことを特徴とするヒンジ装置を用いた電子機器。 An electronic apparatus using a hinge device, wherein the hinge device according to any one of claims 1 and 2 is provided at a pivot portion. 前記第一部材若しくは第二部材としての本体部と、これに重合する前記第二部材若しくは第一部材としての重合部とを重合状態から所定開放角度まで開閉できるように枢着する枢着部に、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電子機器。 A pivot part pivotally pivoting so that the main part as the first member or the second member and the superposed part as the second member or the first member superposed on the main part can be opened and closed from the polymerization state to a predetermined opening angle. The electronic device using the hinge apparatus of any one of the said Claims 1-3 .
JP2008001310A 2008-01-08 2008-01-08 HINGE DEVICE AND ELECTRONIC DEVICE USING HINGE DEVICE Expired - Fee Related JP4617360B2 (en)

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Publication number Priority date Publication date Assignee Title
JP2007032661A (en) * 2005-07-26 2007-02-08 Matsushita Electric Ind Co Ltd Switching device
JP2008281046A (en) * 2007-05-09 2008-11-20 Matsushita Electric Ind Co Ltd Opening and closing device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007032661A (en) * 2005-07-26 2007-02-08 Matsushita Electric Ind Co Ltd Switching device
JP2008281046A (en) * 2007-05-09 2008-11-20 Matsushita Electric Ind Co Ltd Opening and closing device

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