JP4500279B2

JP4500279B2 - Hinge device

Info

Publication number: JP4500279B2
Application number: JP2006058971A
Authority: JP
Inventors: 和征石ケ谷
Original assignee: Sugatsune Kogyo Co Ltd
Current assignee: Sugatsune Kogyo Co Ltd
Priority date: 2006-03-06
Filing date: 2006-03-06
Publication date: 2010-07-14
Anticipated expiration: 2026-03-06
Also published as: CN100520095C; JP2007239768A; CN101033772A

Description

この発明は、携帯機器等における二つの構成部、例えば携帯電話機の送話側筐体及び受話側筐体を回動可能に連結するためのヒンジ装置に関する。 The present invention relates to a hinge device for rotatably connecting two components in a portable device or the like, for example, a transmitting side housing and a receiving side housing of a mobile phone.

一般に、携帯電話機の送話側筐体と受話側筐体とを回動可能に連結するヒンジ装置は、下記特許文献１に記載されているように、送話側筐体の連結筒部に回動不能に嵌合される固定部材と、受話側筐体の連結筒部に回動不能に嵌合される可動部材とを備えている。固定部材と可動部材とは、回動可能に連結されている。これにより、受話側筐体が送話側筐体に回動可能に連結されている。受話側筐体の回動範囲は、通常、折畳位置と通話位置との間に制限されている。 In general, a hinge device that rotatably connects a transmitting side housing and a receiving side housing of a mobile phone is connected to a connecting tube portion of the transmitting side housing as described in Patent Document 1 below. A fixed member that is immovably fitted and a movable member that is non-rotatably fitted to the connecting cylinder portion of the receiver-side housing are provided. The fixed member and the movable member are connected so as to be rotatable. Thereby, the receiving side housing is rotatably connected to the transmitting side housing. The rotation range of the receiving side housing is usually limited between the folding position and the call position.

固定部材の可動部材側の一端部には、カム部材が回動不能に設けられている。可動部材は、カム部材に対して接近離間可能であり、コイルばねによってカム部材に向かって付勢されている。可動部材とカム部材との間には、コイルばねの付勢力を回動付勢力に変換する変換機構が設けられている。この変換機構によって変換された回動付勢力により、カム部材と可動部材とが相対回動するように回動付勢される。カム部材に作用する回動付勢力は、固定部材に伝達され、固定部材から送話側筐体に伝達される。一方、可動部材に作用する回動付勢力は、受話側筐体に伝達される。これにより、受話側筐体が送話側筐体に対し折畳位置や通話位置に回動されるとともに、それらの位置に維持される。 A cam member is provided so as not to rotate at one end of the fixed member on the movable member side. The movable member can be moved toward and away from the cam member and is biased toward the cam member by a coil spring. Between the movable member and the cam member, there is provided a conversion mechanism that converts the urging force of the coil spring into a rotating urging force. The cam member and the movable member are urged to rotate relative to each other by the rotation urging force converted by the conversion mechanism. The rotational biasing force acting on the cam member is transmitted to the fixed member, and is transmitted from the fixed member to the transmitting side housing. On the other hand, the rotational biasing force that acts on the movable member is transmitted to the receiver-side casing. As a result, the receiving-side casing is rotated to the folding position or the calling position with respect to the transmitting-side casing, and is maintained at those positions.

固定部材の可動部材側と逆側の端部には、拡縮径可能な係止部が形成されている。この係止部の外周面には、環状溝が形成されている。この環状溝には、連結筒部の内周面に形成された環状突出部が嵌合する。これにより、固定部材が連結筒部に移動不能に係止され、ひいてはヒンジ装置全体が送話側筐体及び受話側筐体の両連結筒部に抜け止め状態で装着されている。 At the end of the fixed member on the side opposite to the movable member, a locking portion capable of expanding and contracting is formed. An annular groove is formed on the outer peripheral surface of the locking portion. An annular protrusion formed on the inner peripheral surface of the connecting cylinder portion is fitted into the annular groove. As a result, the fixing member is locked to the connecting cylinder portion so as not to move, and as a result, the entire hinge device is attached to both the connecting cylinder portions of the transmitting side housing and the receiving side housing in a state of retaining.

特開２００５−３３１０３２号公報JP 2005-331032 A

係止部の外周面の両側部には、平面部が形成されている。この平面部は、連結筒部の内周面に形成された平面部に突き当たる。これにより、固定部材が連結筒部に回動不能に連結されている。したがって、固定部材と送話側筐体との間の回動付勢力の伝達は、両平面部を介して行われる。よって、係止部の平面部は、その各部に作用する押圧力を小さくするために、できる限り大きくすることが望ましい。ところが、係止部の外周面には環状溝が形成されている。このため、係止部の長さが、環状溝の幅の分だけ短くなり、それに応じて平面部の面積が小さくなってしまう。この結果、固定部材及び連結筒部の両平面部が早期に摩耗しやすいという問題があった。固定部材及び連結筒部の両平面部が摩耗すると、固定部材と送話側筐体との間にガタが発生し、ひいては送話側筐体と受話側筐体との間にガタが発生してしまう。 Flat portions are formed on both sides of the outer peripheral surface of the locking portion. This flat part hits the flat part formed in the inner peripheral surface of a connection cylinder part. Thereby, the fixing member is non-rotatably connected to the connecting cylinder portion. Therefore, the transmission of the rotational biasing force between the fixing member and the transmission-side casing is performed via both plane portions. Therefore, it is desirable that the flat portion of the locking portion be as large as possible in order to reduce the pressing force acting on each portion. However, an annular groove is formed on the outer peripheral surface of the locking portion. For this reason, the length of the locking portion is shortened by the width of the annular groove, and the area of the flat portion is accordingly reduced. As a result, there is a problem that both the flat portions of the fixing member and the connecting cylinder portion are easily worn out at an early stage. When both the flat surfaces of the fixing member and the connecting cylinder portion are worn, backlash occurs between the fixing member and the transmitting side housing, and consequently, backlash occurs between the transmitting side housing and the receiving side housing. End up.

この発明は、上記の問題を解決するために、固定部材と、この固定部材に回動可能に、かつ接近離間移動可能に連結された可動部材と、上記固定部材と上記可動部材との間に配置され、上記可動部材に対して回動可能なカム部材と、上記可動部材と上記カム部材とを相対回動するように回動付勢する回動付勢手段とを備え、上記固定部材の上記カム部材側と逆側の端部に拡縮径可能な係止部が形成され、この係止部の外周面に係止溝が形成されたヒンジ装置において、
上記カム部材には、当該カム部材から突出して上記固定部材側に延びる係合部を形成し、上記係合部は上記固定部材の外側で当該固定部材と重なることを特徴としている。
この場合、上記係合部が平板状に形成されていることが望ましい。
また、上記係合部が上記係止溝を越えて上記逆側の端部側まで延びていることが望ましい。
さらに、上記カム部材が上記固定部材に上記係合部を介して回動不能に連結されていることが望ましい。 In order to solve the above problem, the present invention provides a fixed member, a movable member connected to the fixed member so as to be rotatable and capable of moving toward and away from the fixed member, and between the fixed member and the movable member. A cam member that is arranged and rotatable with respect to the movable member, and a rotation urging means that urges the movable member and the cam member to rotate relative to each other. In the hinge device in which an engaging portion capable of expanding and contracting is formed at an end opposite to the cam member side, and an engaging groove is formed on the outer peripheral surface of the engaging portion.
The aforementioned cam member, protruding from the cam member to form an engagement portion extending to the fixing member side, the engaging portion is characterized by the said fixing members and weight of Turkey outside of the fixed member.
In this case, it is desirable that the engaging portion is formed in a flat plate shape.
Moreover, it is desirable that the engaging portion extends beyond the locking groove to the opposite end portion side.
Furthermore, it is desirable that the cam member is connected to the fixing member through the engagement portion so as not to rotate.

上記特徴構成を有するこの発明によれば、例えば携帯電話機の送話側筐体又は受話側筐体の連結筒部にカム部材の係合部を係合させることにより、連結筒部にカム部材を回動不能に連結することができる。したがって、カム部材に作用する回動付勢力は、係合部を介して連結筒部に伝達される。ここで、係合部は、カム部材に形成されているので、その長さが固定部材の環状溝によって短くなってしまうことがなく、環状溝を横断するように長くすることができる。したがって、係合部及びこれが係合する連結筒部の内面の早期摩耗を防止することができる。 According to the present invention having the above-described characteristic configuration, for example, by engaging the engaging portion of the cam member with the connecting cylindrical portion of the transmitting side housing or the receiving side housing of the mobile phone, the cam member is connected to the connecting cylindrical portion. It can be connected so that it cannot rotate. Therefore, the rotational biasing force acting on the cam member is transmitted to the connecting cylinder portion via the engaging portion. Here, since the engaging part is formed in the cam member, its length is not shortened by the annular groove of the fixing member, and can be made long so as to cross the annular groove. Therefore, premature wear of the engaging part and the inner surface of the connecting cylinder part with which the engaging part is engaged can be prevented.

以下、この発明を実施するための最良の形態を、図面を参照して説明する。
図１は、この発明に係るヒンジ装置１（図２〜図４参照）が用いられた携帯電話機Ａを示す。この携帯電話機Ａは、送話側筐体Ｂと受話側筐体Ｃとを有している。送話側筐体Ｂの一端部には、二つの連結筒部Ｂａが互いの軸線を一致させた状態で形成されている。受話側筐体Ｃの一端部にも、二つの連結筒部Ｃａが互いの軸線を一致させた状態で形成されている。二つの連結筒部Ｃａ，Ｃａは、二つの連結筒部Ｂａ，Ｂａ間に挿入されている。隣接する二つの連結筒部（図１（Ａ）において右側に位置する二つの連結筒部）Ｂａ，Ｃａは、この発明に係るヒンジ装置１により連結筒部Ｂａ，Ｃａの軸線、つまり回動軸線Ｌを中心として回動可能に連結されている。隣接する他の二つの連結筒部Ｂａ，Ｃａは、単なる軸体により回動軸線Ｌを中心として回動可能に連結されている。勿論、当該他の二つの連結筒部Ｂａ，Ｃａもこの発明に係るヒンジ装置１によって回動可能に連結してもよい。なお、送話側筐体Ｂと受話側筐体Ｃとは、相対回動可能であるが、ここでは説明の便宜上、送話側筐体Ｂが位置固定され、受話側筐体Ｃが送話側筐体Ｂに対して回動するものとする。 The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 shows a cellular phone A in which a hinge device 1 (see FIGS. 2 to 4) according to the present invention is used. This cellular phone A has a transmission side casing B and a reception side casing C. At one end of the transmission-side casing B, two connecting cylinders Ba are formed in a state where the axes of the connecting cylinders Ba coincide with each other. Two connecting cylinders Ca are also formed at one end of the receiver-side casing C in a state where the axes of the connecting cylinders Ca are aligned. The two connecting tube portions Ca and Ca are inserted between the two connecting tube portions Ba and Ba. Two adjacent connecting cylinder parts (two connecting cylinder parts located on the right side in FIG. 1A) Ba and Ca are connected to the axis of the connecting cylinder parts Ba and Ca by the hinge device 1 according to the present invention, that is, the rotation axis. It is connected so as to be rotatable around L. The other two adjacent connecting tube portions Ba and Ca are connected to each other so as to be rotatable about the rotation axis L by a simple shaft body. Of course, the other two connecting cylinders Ba and Ca may also be rotatably connected by the hinge device 1 according to the present invention. In addition, although the transmitting side case B and the receiving side case C can be rotated relative to each other, here, for convenience of explanation, the position of the transmitting side case B is fixed and the receiving side case C is set to transmit the speech. It shall rotate with respect to the side housing | casing B. FIG.

受話側筐体Ｃの回動範囲は、折畳位置と図１に示す通話位置との間のほぼ１６０°の範囲に制限されている。折畳位置は、受話側筐体Ｃの前面Ｃｂが送話側筐体Ｂの前面Ｂｂに突き当たることによって規制されている。通話位置は、受話側筐体の一端部が送話側筐体Ｂの一端部に突き当たることによって規制されている。後述するように、受話側筐体Ｃは、折畳位置から通話位置側へ向かう所定の角度範囲に位置すると、ヒンジ装置１によって折畳位置まで回動させられた後、折畳位置に維持される。また、受話側筐体Ｃは、通話位置から折畳位置側へ向かう所定の角度範囲に位置すると、ヒンジ装置によって通話位置まで回動させられた後、通話位置に維持される。 The pivoting range of the receiving case C is limited to a range of approximately 160 ° between the folding position and the call position shown in FIG. The folding position is regulated by the front face Cb of the receiving side casing C hitting the front face Bb of the transmitting side casing B. The call position is regulated by the fact that one end of the receiving side housing abuts against one end of the transmitting side housing B. As will be described later, when the receiving-side casing C is located within a predetermined angle range from the folding position toward the call position, it is rotated to the folding position by the hinge device 1 and then maintained at the folding position. The In addition, when the receiving-side casing C is located in a predetermined angle range from the call position toward the folding position, it is rotated to the call position by the hinge device and then maintained at the call position.

ヒンジ装置１は、図２〜図４及び図６に示すように、ヒンジ本体２を有している。ヒンジ本体２は、鉄、その他の金属からなるものであり、断面八角形の有底筒状に形成されている。ヒンジ本体２の底部２ａ側の一端部は、送話側筐体Ｂの連結筒部Ｂａに回動不能に嵌合されている。したがって、ヒンジ本体２は、送話側筐体Ｂに位置固定され、回動することがない。なお、この実施の形態では、ヒンジ本体２の外形を八角形にするとともに、連結筒部Ｂａの内径を八角形にすることにより、両者を回動不能に連結しているが、他の多角形状にして回動不能に連結してもよく、両者を断面円径にし、キー結合等によって回動不能に連結してもよい。 As shown in FIGS. 2 to 4 and 6, the hinge device 1 has a hinge body 2. The hinge body 2 is made of iron or other metal and is formed in a bottomed cylindrical shape having an octagonal cross section. One end of the hinge body 2 on the bottom 2a side is fitted to the connecting cylinder portion Ba of the transmission side housing B so as not to rotate. Therefore, the hinge main body 2 is fixed in position to the transmission-side casing B and does not rotate. In this embodiment, the outer shape of the hinge body 2 is made octagonal and the inner diameter of the connecting tube portion Ba is made octagonal so that they are non-rotatably connected. Alternatively, they may be non-rotatably connected to each other, or both may have a circular cross-sectional diameter and may be non-rotatably connected by key connection or the like.

ヒンジ本体２の開口側の端部は、受話側筐体Ｃの連結筒部Ｃａに回動可能に嵌合されている。つまり、連結筒部Ｃａの内周は、ヒンジ本体２の外面の対角線の長さとほぼ同一の内径を有する断面円径の孔として形成されており、ヒンジ本体２の八つの角部が連結筒部Ｃａの内周面に周方向へ摺動可能に接しているのである。ヒンジ本体２が連結筒部Ｃａに回動可能に嵌合することにより、連結筒部Ｃａが連結筒部Ｂａに回動軸線Ｌを中心として回動可能に連結され、ひいては受話側筐体Ｃが送話側筐体Ｂに回動軸線Ｌを中心として回動可能に連結されている。 The end of the hinge body 2 on the opening side is rotatably fitted to the connecting cylinder portion Ca of the receiver case C. In other words, the inner circumference of the connecting cylinder portion Ca is formed as a hole having a circular cross section having an inner diameter substantially the same as the diagonal length of the outer surface of the hinge body 2, and the eight corners of the hinge body 2 are connected to the connecting cylinder portion. It is in contact with the inner circumferential surface of Ca so that it can slide in the circumferential direction. When the hinge body 2 is pivotably fitted to the connecting cylinder part Ca, the connecting cylinder part Ca is connected to the connecting cylinder part Ba so as to be rotatable about the rotation axis L, and the receiver-side casing C is eventually connected. It is connected to the transmission side housing B so as to be rotatable about a rotation axis L.

ヒンジ本体２の底部２ａの中央部には、軸線を回動軸線Ｌと一致させた貫通孔２ｂが形成されている。この貫通孔２ｂには、軸線を回動軸線Ｌと一致させた金属製の連結軸３が樹脂製の減摩部材４を介して回動可能に挿通されている。連結軸３は、その基端部に形成された頭部３ａが減摩部材４を介して底部２ａに突き当たることにより、ヒンジ本体２の底部２ａ側から開口部側へ向かう方向へ貫通孔２ｂから抜け出ることが阻止されている。なお、減摩部材４は、フッ素樹脂等の摩擦抵抗が小さい樹脂からなるものであり、ヒンジ本体２と連結軸３との間の摩擦抵抗を減少させるとともに、金属からなるヒンジ本体２と連結軸３とが直接接触することによる金属屑や騒音の発生を防止するためのものである。 At the center of the bottom 2a of the hinge body 2, a through-hole 2b whose axis is aligned with the rotation axis L is formed. A metal coupling shaft 3 whose axis is aligned with the rotation axis L is inserted through the through hole 2b via a resin antifriction member 4 so as to be rotatable. The connecting shaft 3 has a head portion 3a formed at the base end thereof that abuts against the bottom portion 2a via the anti-friction member 4, so that the connecting shaft 3 extends from the through hole 2b in the direction from the bottom portion 2a side to the opening side of the hinge body 2. Exiting is prevented. The antifriction member 4 is made of a resin having a small frictional resistance such as a fluororesin, and reduces the frictional resistance between the hinge body 2 and the connecting shaft 3 and is made of a metal hinge body 2 and the connecting shaft. It is for preventing generation | occurrence | production of the metal scrap and noise by 3 and direct contact.

連結軸３の先端部は、ヒンジ本体２の開口部から外部に突出しており、そこには固定部材５が設けられている。固定部材５は、樹脂からなるものであり、その中央部には、貫通孔５ａが形成されている。この貫通孔５ａには、連結軸３の先端部が回動不能に、かつ少なくとも所定の位置において連結軸の基端側から先端側へ向かう方向へ移動不能に嵌合されている。 The distal end portion of the connecting shaft 3 protrudes from the opening of the hinge body 2, and a fixing member 5 is provided there. The fixing member 5 is made of resin, and a through hole 5a is formed at the center thereof. The through-hole 5a is fitted with the distal end portion of the connecting shaft 3 so as not to be rotatable and at least at a predetermined position so as not to move in the direction from the proximal end side to the distal end side of the connecting shaft.

固定部材５のヒンジ本体２側と逆側の端面には、係止筒部（係止部）５ｂがその軸線を回動軸線Ｌと一致させて設けられている。係止部５ｂの外周面の先端部には、先細りのテーパ部５ｃが形成されている。係止部５ｂの外周面の基端部には、環状溝（係止溝）５ｄが形成されている。この環状溝５ｄには、連結筒部Ｃａの内周面に形成された環状突出部Ｃｃが嵌合している。これにより、固定部材５が連結筒部Ｃａに回動軸線Ｌ方向へ位置固定され、ひいてはヒンジ装置１全体が連結筒部Ｂａ，Ｃａ内に抜け止め状態で装着されている。 On the end surface of the fixing member 5 opposite to the hinge body 2 side, a locking cylinder portion (locking portion) 5b is provided with its axis line coinciding with the rotation axis line L. A tapered portion 5c is formed at the tip of the outer peripheral surface of the locking portion 5b. An annular groove (locking groove) 5d is formed at the base end portion of the outer peripheral surface of the locking portion 5b. An annular protrusion Cc formed on the inner peripheral surface of the connecting cylinder portion Ca is fitted in the annular groove 5d. As a result, the fixing member 5 is fixed to the connecting cylinder part Ca in the direction of the rotation axis L, and the hinge device 1 as a whole is mounted in the connecting cylinder parts Ba and Ca in a retaining state.

係止筒部５ｂの先端面には、割り溝５ｅが形成されている。この割り溝５ｅの深さは、係止筒部５ｂの長さより深くなっている。また、割り溝５ｅは、係止筒部５ｂの一側部から他側部まで延び、係止筒部５ｂを回動軸線Ｌと直交する方向に横断している。係止筒部５ｂを横断する割り溝５ｅが形成されることにより、係止筒部５ｂが弾性的に拡縮径可能になっている。したがって、固定部材５を連結筒部Ｂａから連結筒部Ｃａ内に挿入してテーパ面５ｃを環状突出部Ｃｃに突き当て、その状態で固定部材５をさらに押すと、係止筒部５ｂが弾性的に縮径する。テーパ面５ｃが環状突出部Ｃｃを通過すると、係止筒部５ｂが弾性的に拡径し、環状溝５ｄ内に環状突出部Ｃｃが嵌合する。なお、係止筒部５ｂを横断する割り溝５ｅが形成されることにより、環状溝５ｅが周方向において二つに分断されている。 A split groove 5e is formed on the distal end surface of the locking cylinder portion 5b. The depth of the split groove 5e is deeper than the length of the locking cylinder portion 5b. The split groove 5e extends from one side portion of the locking cylinder portion 5b to the other side portion, and crosses the locking cylinder portion 5b in a direction orthogonal to the rotation axis L. By forming the split groove 5e crossing the locking cylinder part 5b, the locking cylinder part 5b can be elastically expanded and contracted in diameter. Therefore, when the fixing member 5 is inserted from the connecting cylinder portion Ba into the connecting cylinder portion Ca, the tapered surface 5c is abutted against the annular protrusion Cc, and the fixing member 5 is further pressed in this state, the locking cylinder portion 5b is elastic. The diameter is reduced. When the tapered surface 5c passes through the annular protrusion Cc, the locking cylinder part 5b is elastically expanded in diameter, and the annular protrusion Cc is fitted into the annular groove 5d. In addition, the annular groove 5e is divided into two in the circumferential direction by forming the split groove 5e crossing the locking cylinder part 5b.

ヒンジ本体２の開口部側の端部には、可動部材６が回動不能に、かつ回動軸線Ｌ方向へ移動可能に嵌合されている。この可動部材６は、連結軸３によって回動可能に、かつ相対移動可能に貫通されている。可動部材６は、コイルばね７により固定部材５側に向かって付勢されている。なお、コイルばね７は、底部２ａにばね受け１０を介して突き当たっている。 The movable member 6 is fitted to the end of the hinge body 2 on the opening side so as not to rotate and to move in the direction of the rotation axis L. The movable member 6 is penetrated by the connecting shaft 3 so as to be rotatable and relatively movable. The movable member 6 is urged toward the fixed member 5 by a coil spring 7. The coil spring 7 abuts against the bottom 2a via a spring receiver 10.

固定部材５と可動部材６との間には、金属製のカム部材８が設けられている。カム部材８は、連結筒部Ｃａに回動軸線Ｌ方向へ移動可能に嵌合しているが、コイルばね７により可動部材６を介して付勢され、固定部材５に突き当てられている。それによって位置固定されており、実質的には移動することがない。しかも、カム部材８は、後述する平板部（係合部）８ａによって連結筒部Ｃａに回動不能に連結されている。したがって、カム部材８は、受話側筐体Ｃと一体に回動する。なお、カム部材８は、連結軸３によって回動不能に貫通されているが、回動可能に貫通されていてもよい。 A metal cam member 8 is provided between the fixed member 5 and the movable member 6. The cam member 8 is fitted to the connecting cylinder portion Ca so as to be movable in the direction of the rotation axis L, but is biased by the coil spring 7 via the movable member 6 and abutted against the fixed member 5. As a result, the position is fixed, and there is substantially no movement. Moreover, the cam member 8 is non-rotatably connected to the connecting cylinder portion Ca by a flat plate portion (engagement portion) 8a described later. Therefore, the cam member 8 rotates integrally with the receiving side casing C. In addition, although the cam member 8 is penetrated by the connecting shaft 3 so as not to rotate, the cam member 8 may be penetrated so as to be rotatable.

カム部材８がコイルばね７により連結軸３に抜け止めされた固定部材５に突き当てられるとともに、ヒンジ本体２がコイルばね７により連結軸３の頭部３ａに減摩部材４を介して突き当てられている。この結果、ヒンジ本体２、減摩部材４、固定部材５、可動部材６、コイルばね７及びカム部材８が連結軸３を介して一体的に連結されており、ヒンジ装置１は、図４に示すように、その全体を一体に取り扱うことができるようにユニット化されている。 The cam member 8 is abutted against the fixed member 5 that is prevented from coming off the connecting shaft 3 by the coil spring 7, and the hinge body 2 is abutted against the head 3 a of the connecting shaft 3 by the coil spring 7 via the anti-friction member 4. It has been. As a result, the hinge body 2, the anti-friction member 4, the fixed member 5, the movable member 6, the coil spring 7 and the cam member 8 are integrally connected via the connecting shaft 3, and the hinge device 1 is shown in FIG. As shown, it is unitized so that it can be handled as a whole.

図２に示すように、可動部材６とカム部材８との間には、コイルばね７の付勢力を回動付勢力に変換する変換機構９が設けられている。変換機構９は、図２、図７及び図８に示すように、可動部材６のカム部材８との対向面に設けられた一対の球体９１，９２と、カム部材８の可動部材６との対向面に設けられた一対の凹部９３，９４とを有している。 As shown in FIG. 2, a conversion mechanism 9 that converts the urging force of the coil spring 7 into a rotating urging force is provided between the movable member 6 and the cam member 8. As shown in FIGS. 2, 7, and 8, the conversion mechanism 9 includes a pair of spheres 91 and 92 provided on the surface of the movable member 6 facing the cam member 8, and the movable member 6 of the cam member 8. It has a pair of recessed part 93,94 provided in the opposing surface.

一対の球体９１，９２は、その略半分を可動部材６から突出させた状態で可動部材６に埋設固定されている。一対の球体９１，９２は、回動可能に埋設してもよい。また、一対の球体に代えて例えば半球状をなす突出部を形成してもよい。一対の球体９１，９２は、回動軸線Ｌを中心とする円周上に周方向へ１８０°離れて配置されている。
The pair of spheres 91 and 92 are embedded and fixed to the movable member 6 with substantially half of the spheres 91 and 92 protruding from the movable member 6. The pair of spheres 91 and 92 may be embedded so as to be rotatable. Further, instead of the pair of spheres, for example, a hemispherical protrusion may be formed. The pair of spheres 91 and 92 are arranged 180 degrees apart in the circumferential direction on the circumference around the rotation axis L.

一対の凹部９３，９４は、球体９１，９２が配置された円周と同一の円周上に周方向へ１８０°離れて配置されている。しかも、図７及び図８に示すように、受話側筐体Ｃが折畳位置に位置しているときには、一対の球体９１，９２が一対の凹部９３，９４の底面の周方向における一端部に突き当たり、受話側筐体Ｃが通話位置に位置しているときには、一対の球体９１，９２が一対の凹部９４，９３の底面の周方向における他端部に突き当たるように配置されている。 A pair of recessed parts 93 and 94 is arrange | positioned 180 degrees apart in the circumferential direction on the same periphery as the periphery where the spherical bodies 91 and 92 are arrange | positioned. Moreover, as shown in FIGS. 7 and 8, when the receiver-side housing C is in the folded position, the pair of spheres 91, 92 are located at one end in the circumferential direction of the bottom surface of the pair of recesses 93, 94. At the end, when the receiving-side casing C is located at the call position, the pair of spheres 91 and 92 are arranged to abut against the other end of the bottom surface of the pair of recesses 94 and 93 in the circumferential direction.

一対の球体９１，９２が一対の凹部９３，９４の底面の一端部に突き当たると、コイルばね７の付勢力が一方向への回動付勢力に変換される。この回動付勢力により、カム部材８及び受話側筐体Ｃが通話位置から折畳位置へ向かう方向に回動付勢され、折畳位置に維持される。しかも、一対の球体９１，９２は、受話側筐体Ｃが折畳位置とそこから所定角度だけ通話位置側へ離れた位置との間に位置しているときには、凹部９３，９４の底面の一端部に突き当たっている。したがって、受話側筐体Ｃは、同角度範囲に位置すると、折畳位置まで回動させられる。 When the pair of spheres 91 and 92 abut against one end of the bottom surface of the pair of recesses 93 and 94, the urging force of the coil spring 7 is converted into a rotating urging force in one direction. With this turning biasing force, the cam member 8 and the receiving case C are turned and biased in the direction from the talking position to the folding position, and maintained at the folding position. In addition, the pair of spheres 91 and 92 has one end of the bottom surface of the recesses 93 and 94 when the receiving-side casing C is located between the folding position and a position away from the receiving position C by a predetermined angle. It hits the part. Therefore, when the receiving side casing C is located in the same angle range, it is rotated to the folding position.

一対の球体９１，９２が一対の凹部９４，９３の底面の他端部に突き当たると、コイルばね７の付勢力が他方向への回動付勢力に変換される。この回動付勢力により、カム部材８及び受話側筐体Ｃが折畳位置から通話位置へ向かう方向に回動付勢され、通話位置に維持される。しかも、一対の球体９１，９２は、受話側筐体Ｃが通話位置とそこから所定角度だけ折畳位置側へ離れた位置との間に位置しているときには、凹部９４，９３の底面の他端部に突き当たっている。したがって、受話側筐体Ｃは、同角度範囲に位置すると、通話位置まで回動させられる。
上記の内容から明らかなように、コイルばね６と変換機構９とによって回動付勢手段が構成されている。 When the pair of spheres 91 and 92 abut against the other end portions of the bottom surfaces of the pair of recesses 94 and 93, the urging force of the coil spring 7 is converted into a rotating urging force in the other direction. With this turning biasing force, the cam member 8 and the receiving-side casing C are turned and biased in the direction from the folding position to the calling position, and maintained at the calling position. In addition, the pair of spheres 91 and 92 are provided on the bottom surfaces of the recesses 94 and 93 when the receiving side housing C is located between the call position and a position away from the call position by a predetermined angle toward the folding position. It hits the edge. Therefore, when the receiving side casing C is located in the same angle range, it is rotated to the call position.
As apparent from the above contents, the rotation force biasing means is constituted by the coil spring 6 and the conversion mechanism 9.

図４〜図６に示すように、固定部材５の外周面には、平面部５ｆが二つ形成されている。平面部５ｆは、回動軸線Ｌに沿って固定部材５の一端から他端まで延びている。二つの平面部５ｆ，５ｆは、固定部材５の周方向に１８０°離れ、かつ割り溝５ｅと直交するように配置されている。平面部５ｆは、一つ又は三つ以上形成してもよく、割り溝５ｅから周方向へ離れた箇所に形成してもよい。 As shown in FIGS. 4 to 6, two flat portions 5 f are formed on the outer peripheral surface of the fixing member 5. The flat portion 5f extends from one end of the fixing member 5 along the rotation axis L to the other end. The two flat portions 5f and 5f are disposed so as to be 180 ° apart from each other in the circumferential direction of the fixing member 5 and orthogonal to the split groove 5e. One or three or more plane portions 5f may be formed, or may be formed at a location away from the dividing groove 5e in the circumferential direction.

カム部材８の外周部には、平板部（係合部）８ａが二つ形成されている。平板部８ａは、カム部材８から固定部材５に向かう方向へ回動軸線Ｌと平行に延びている。二つの平板部８ａ，８ａは、平面部５ｆ，５ｆと周方向において同一位置に配置されている。しかも、平板部８ａ，８ａの内面８ｂ，８ｂ間の距離は、平面部５ｆ，５ｆ間の距離とほぼ等しくなっており、平板部８ａ，８ａの各内面８ｂ，８ｂは、平面部５ｆ，５ｆにそれぞれほぼ接している。これにより、カム部材８と固定部材５とが回動不能に連結されている。 Two flat plate portions (engagement portions) 8 a are formed on the outer peripheral portion of the cam member 8. The flat plate portion 8 a extends in parallel with the rotation axis L in the direction from the cam member 8 toward the fixed member 5. The two flat plate portions 8a and 8a are arranged at the same position in the circumferential direction as the flat surface portions 5f and 5f. Moreover, the distance between the inner surfaces 8b, 8b of the flat plate portions 8a, 8a is substantially equal to the distance between the flat surface portions 5f, 5f, and the inner surfaces 8b, 8b of the flat plate portions 8a, 8a are the flat surface portions 5f, 5f. Are almost touching each other. Thereby, the cam member 8 and the fixing member 5 are connected so as not to rotate.

平板部８ａは、カム部材８に形成されているので、平面部５ｆが環状溝５ｄによって分断されているのに対し、環状溝５ｄによって分断されることがない。この実施の形態では、平板部８ａが環状溝５ｄを覆うように、つまり環状溝５ｄを横切って延びている。したがって、平板部８ａの回動軸線Ｌに沿う長さは、環状溝５ｄの存在に拘わらず長くすることができる。 Since the flat plate portion 8a is formed in the cam member 8, the flat surface portion 5f is divided by the annular groove 5d, but is not divided by the annular groove 5d. In this embodiment, the flat plate portion 8a extends so as to cover the annular groove 5d, that is, across the annular groove 5d. Therefore, the length along the rotation axis L of the flat plate portion 8a can be increased regardless of the presence of the annular groove 5d.

図５に示すように、連結筒部Ｃａの内周面の平板部８ａと対向する箇所には、係合凹部Ｃｄが形成されている。係合凹部Ｃｄの幅は、係合凹部Ｃｄに平板部８ａを容易に挿入することができるよう、平板部８ａの幅より若干広くなっている。係合凹部Ｃｄ，Ｃｄの底面間の間隔は、平板部８ａ，８ａの外面８ｃ，８ｃ間の距離とほぼ等しくなっており、平板部８ａ，８ａの各外面８ｃ、８ｃは、係合凹部Ｃｄ，Ｃｄの各底面Ｃｅ，Ｃｅにそれぞれほぼ接している。これにより、カム部材８が連結筒部Ｃａに回動不能に連結されている。 As shown in FIG. 5, an engaging recess Cd is formed at a location facing the flat plate portion 8a on the inner peripheral surface of the connecting cylinder portion Ca. The width of the engagement recess Cd is slightly wider than the width of the flat plate portion 8a so that the flat plate portion 8a can be easily inserted into the engagement recess Cd. The distance between the bottom surfaces of the engaging recesses Cd and Cd is substantially equal to the distance between the outer surfaces 8c and 8c of the flat plate portions 8a and 8a. The outer surfaces 8c and 8c of the flat plate portions 8a and 8a , Cd are substantially in contact with the bottom surfaces Ce, Ce. Thereby, the cam member 8 is non-rotatably connected to the connecting cylinder portion Ca.

係合凹部Ｃｄの幅は、平板部８ａの幅とほぼ同一にし、係合凹部Ｃｄの両側面Ｃｆ，Ｃｆを平板部８ａの両側面８ｄ，８ｄに接触させるようにしてもよい。それによって、カム部材８を連結筒部Ｃａに回動不能に連結してもよい。ただし、そのようにする場合には、平板部８ａを係合凹部Ｃｄに挿入し易くするために、平板部８ａ，８ａの外面８ｃ，８ｃの距離を、係合凹部Ｃｄ、Ｃｄの底面Ｃｅ，Ｃｅの距離より若干短くするのが望ましい。 The width of the engagement recess Cd may be substantially the same as the width of the flat plate portion 8a, and both side surfaces Cf, Cf of the engagement recess Cd may be brought into contact with both side surfaces 8d, 8d of the flat plate portion 8a. Thereby, you may connect the cam member 8 to the connection cylinder part Ca so that rotation is impossible. However, in such a case, in order to facilitate the insertion of the flat plate portion 8a into the engaging recess Cd, the distance between the outer surfaces 8c, 8c of the flat plate portions 8a, 8a is set to the bottom surface Ce of the engaging recesses Cd, Cd. It is desirable to make it slightly shorter than the distance of Ce.

上記構成のヒンジ装置１によれば、カム部材８を連結筒部Ｃａに回動不能に連結するための平板部８ａをカム部材８に設けているから、平板部８ａの回動軸線Ｌに沿う長さが固定部材５の環状溝５ｄによって短くされることがなく、十分に長くすることができる。したがって、平板部８ａと係合凹部Ｃｄとの互いに当接する外面８ｃと底面Ｃｅが早期に摩耗するのを防止することができる。したがって、カム部材８と連結筒部Ｃａとの間にガタが発生することがない。よって、送話側筐体Ｂと受話側筐体Ｃとの間にガタが発生するのを長期にわたって防止することができる。 According to the hinge device 1 configured as described above, the cam member 8 is provided with the flat plate portion 8a for non-rotatably connecting the cam member 8 to the connecting cylinder portion Ca, and therefore, along the rotation axis L of the flat plate portion 8a. The length is not shortened by the annular groove 5d of the fixing member 5, and can be made sufficiently long. Therefore, it is possible to prevent the outer surface 8c and the bottom surface Ce of the flat plate portion 8a and the engagement recess Cd from coming into contact with each other from being worn at an early stage. Therefore, no play occurs between the cam member 8 and the connecting cylinder portion Ca. Therefore, it is possible to prevent the backlash from occurring between the transmission side case B and the reception side case C over a long period of time.

図９は、上記ヒンジ装置１の固定部材５に代えて用いられる固定部材５′を示す。この固定部材５′においては、環状溝５ｄに代えて二つのストレート溝（係止溝）５ｄ′が形成されている。二つのストレート溝５ｄ′，５ｄ′は、固定部材５′の周方向へ互いに１８０°離れて配置されており、回動軸線Ｌと直交する方向へ延びて平面部５ｆと直交している。固定部材５′の他の構成は、上記固定部材５と同様であり、同様な部分には同一符号を付してその説明を省略する。なお、この固定部材５′が用いられる場合には、環状突出部Ｃｃに代えて、ストレート溝５ｄ′，５ｄ′にそれぞれ嵌り込む二つの突出部が形成される。 FIG. 9 shows a fixing member 5 ′ used instead of the fixing member 5 of the hinge device 1. In this fixing member 5 ', two straight grooves (locking grooves) 5d' are formed instead of the annular groove 5d. The two straight grooves 5d ′ and 5d ′ are arranged 180 degrees apart from each other in the circumferential direction of the fixing member 5 ′, extend in a direction orthogonal to the rotation axis L, and are orthogonal to the plane portion 5f. Other configurations of the fixing member 5 'are the same as those of the fixing member 5, and the same parts are denoted by the same reference numerals and the description thereof is omitted. When this fixing member 5 ′ is used, two projecting portions that fit into the straight grooves 5 d ′ and 5 d ′ are formed instead of the annular projecting portion Cc.

図１０は、上記ヒンジ装置１において用いられる固定部材のさらに他の例を示す。この固定部材５″は、固定部材５′を変形したものであり、ストレート溝５ｄ′に代えてストレート溝（係止溝）５ｄ″が形成されている。このストレート溝５ｄ″は、カム部材８側の端部が開放されている。したがって、このヒンジ装置１では、ストレート溝５ｄ″が突出部に係合することによって図１０の右方への移動が阻止されるが、左方への移動は突出部がカム部材８に突き当たることによって阻止される。その他の構成は、固定部材５′と同様である。 FIG. 10 shows still another example of the fixing member used in the hinge device 1. The fixing member 5 ″ is a modification of the fixing member 5 ′, and a straight groove (locking groove) 5d ″ is formed instead of the straight groove 5d ′. The end of the straight groove 5d ″ on the cam member 8 side is opened. Therefore, in the hinge device 1, the straight groove 5d ″ is engaged with the protruding portion so that the rightward movement of FIG. Although it is blocked, the leftward movement is blocked by the projecting portion hitting the cam member 8. Other configurations are the same as those of the fixing member 5 '.

なお、この発明は、上記の実施の形態に限定されるものでなく、その要旨を逸脱しない範囲において適宜変更可能である。
例えば、ヒンジ装置１は、携帯電話機以外のノートブック型パソコン等の携帯機器にも用いることができる。その場合には、操作キーが設けられる筐体と表示画面が設けられる筐体とに連結筒部をそれぞれ設けてもよく、あるいは各筐体に連結筒部の内周面と同様な内周面を有する連結孔を形成し、各連結孔にヒンジ装置１の各部を挿入してもよい。
また、上記の実施の携帯においては、可動部材６に球体９１，９２を設け、カム部材８に凹部９３，９４を設けているが、可動部材６に凹部９３，９４を設け、カム部材８に球体９１，９２を設けてもよい。
さらに、上記の実施の携帯においては、係合部として平板部８ａを形成しているが、カム部材８を連結筒部Ｃａに回動不能に係合することができるものであれば、他の形状であってもよい。また、平面部５ｆに平板部８ａを接触させることによって固定部材５をカム部材８に回動不能に連結しているが、固定部材５は必ずしもカム部材８に回動不能に連結する必要がない。したがって、平面部５ｆは形成しなくてもよい。ただし、平面部５ｆを形成すれば、平板部８ａ，８ａの間隔を狭くすることができる。したがって、平面部５ｆを形成することが望ましい。さらに、固定部材５とカム部材８とを回動不能に連結する場合には、平面部５ｆと平板部８ａとの係合によらず、固定部材５とカム部材８との互いに突き当たる端面どうしを係合させ、それによって固定部材５とカム部材８とを回動不能に連結してもよい。 In addition, this invention is not limited to said embodiment, In the range which does not deviate from the summary, it can change suitably.
For example, the hinge device 1 can be used for a portable device such as a notebook personal computer other than the cellular phone. In that case, the connecting cylinder part may be provided in each of the casing provided with the operation keys and the casing provided with the display screen, or the inner peripheral surface similar to the inner peripheral surface of the connecting cylinder part in each casing. May be formed, and each part of the hinge device 1 may be inserted into each connection hole.
In the above embodiment, the movable member 6 is provided with the spheres 91 and 92 and the cam member 8 is provided with the recesses 93 and 94. However, the movable member 6 is provided with the recesses 93 and 94 and the cam member 8 is provided with the recesses 93 and 94. Spheres 91 and 92 may be provided.
Further, in the above embodiment, the flat plate portion 8a is formed as the engaging portion. However, any other member can be used as long as the cam member 8 can be non-rotatably engaged with the connecting cylindrical portion Ca. It may be a shape. Further, the fixed member 5 is non-rotatably connected to the cam member 8 by bringing the flat plate portion 8a into contact with the flat surface portion 5f, but the fixed member 5 is not necessarily connected to the cam member 8 so as not to be rotatable. . Therefore, the flat portion 5f may not be formed. However, if the plane part 5f is formed, the space | interval of flat plate part 8a, 8a can be narrowed. Therefore, it is desirable to form the flat portion 5f. Further, when the fixing member 5 and the cam member 8 are connected so as not to rotate, the end surfaces of the fixing member 5 and the cam member 8 that face each other are not engaged with each other regardless of the engagement between the flat surface portion 5f and the flat plate portion 8a. The fixing member 5 and the cam member 8 may be non-rotatably connected thereby.

この発明に係るヒンジ装置が用いられた携帯電話機を示す図であって、図１（Ａ）はその平面図、図１（Ｂ）はその側面図である。FIG. 1A is a plan view and FIG. 1B is a side view of a mobile phone using a hinge device according to the present invention. 図１（Ａ）のＸ−Ｘ線に沿う拡大断面図である。It is an expanded sectional view which follows the XX line of FIG. 図２のＸ−Ｘ線に沿う断面図である。It is sectional drawing which follows the XX line of FIG. この発明に係るヒンジ装置を示す斜視図である。It is a perspective view which shows the hinge apparatus based on this invention. 図２のＹ−Ｙ線に沿う拡大断面図である。It is an expanded sectional view which follows the YY line of FIG. この発明に係るヒンジ装置の分解斜視図である。It is a disassembled perspective view of the hinge apparatus based on this invention. この発明に係るヒンジ装置において用いられているカム部材の平面図である。It is a top view of the cam member used in the hinge apparatus concerning this invention. 図７のＸ−Ｘ線に沿う拡大断面図である。It is an expanded sectional view which follows the XX line of FIG. この発明に係るヒンジ装置において用いられる固定部材の他の例を示す斜視図である。It is a perspective view which shows the other example of the fixing member used in the hinge apparatus which concerns on this invention. この発明に係るヒンジ装置において用いられる固定部材のさらに他の例を示す斜視図である。It is a perspective view which shows the further another example of the fixing member used in the hinge apparatus which concerns on this invention.

符号の説明Explanation of symbols

１ヒンジ装置
５固定部材
５′ 固定部材
５″ 固定部材
５ｂ係止筒部（係止部）
５ｄ環状溝（係止溝）
５ｄ′ ストレート溝（係止溝）
５ｄ″ ストレート溝（係止溝）
６可動部材
７コイルばね（回動付勢手段）
８カム部材
８ａ平板部（係合部）
９変換機構（回動付勢手段） DESCRIPTION OF SYMBOLS 1 Hinge apparatus 5 Fixing member 5 'Fixing member 5 "Fixing member 5b Locking cylinder part (locking part)
5d annular groove (locking groove)
5d 'Straight groove (locking groove)
5d "straight groove (locking groove)
6 Movable member 7 Coil spring (rotating biasing means)
8 Cam member 8a Flat plate part (engagement part)
9 Conversion mechanism (turning biasing means)

Claims

固定部材と、この固定部材に回動可能に、かつ接近離間移動可能に連結された可動部材と、上記固定部材と上記可動部材との間に配置され、上記可動部材に対して回動可能なカム部材と、上記可動部材と上記カム部材とを相対回動するように回動付勢する回動付勢手段とを備え、上記固定部材の上記カム部材側と逆側の端部に拡縮径可能な係止部が形成され、この係止部の外周面に係止溝が形成されたヒンジ装置において、
上記カム部材には、当該カム部材から突出して上記固定部材側に延びる係合部を形成し、上記係合部は上記固定部材の外側で当該固定部材と重なることを特徴とするヒンジ装置。 A fixed member, a movable member connected to the fixed member so as to be rotatable and capable of moving toward and away from the fixed member, and disposed between the fixed member and the movable member, and rotatable relative to the movable member. A cam member, and a rotation urging means that urges the movable member and the cam member to rotate relative to each other, and has an enlarged or reduced diameter at an end of the fixed member opposite to the cam member. In the hinge device in which a possible locking portion is formed and a locking groove is formed on the outer peripheral surface of the locking portion,
The aforementioned cam member, protruding from the cam member to form an engagement portion extending to the fixing member side, the engaging portion and wherein the said fixing member and weight of Turkey outside of the fixed member hinge apparatus.

上記係合部が平板状に形成されていることを特徴とする請求項１に記載のヒンジ装置。 The hinge device according to claim 1, wherein the engaging portion is formed in a flat plate shape.

上記係合部が上記係止溝を越えて上記逆側の端部側まで延びていることを特徴とする請求項１又は２に記載のヒンジ装置。 The hinge device according to claim 1, wherein the engaging portion extends beyond the locking groove to the opposite end portion side.

上記カム部材が上記固定部材に上記係合部を介して回動不能に連結されていることを特徴とする請求項１〜３のいずれかに記載のヒンジ装置。 The hinge device according to any one of claims 1 to 3, wherein the cam member is non-rotatably connected to the fixing member via the engaging portion.