JP6185782B2 - Hinge - Google Patents

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JP6185782B2
JP6185782B2 JP2013154702A JP2013154702A JP6185782B2 JP 6185782 B2 JP6185782 B2 JP 6185782B2 JP 2013154702 A JP2013154702 A JP 2013154702A JP 2013154702 A JP2013154702 A JP 2013154702A JP 6185782 B2 JP6185782 B2 JP 6185782B2
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shaft portion
shaft
hinge
peripheral surface
hole
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JP2015025490A (en
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達実 川野
達実 川野
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Simotec Co Ltd
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Simotec Co Ltd
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Description

本発明は、ヒンジの技術に関する。   The present invention relates to hinge technology.

第一連結対象物に第二連結対象物を回動可能に連結するヒンジに関する技術は、種々知られている。中でも、第一部材と第二部材との間にフリクショントルクを発生させて、小型化・軽量化を図ったヒンジが知られている（特許文献１及び特許文献２を参照）。   Various techniques relating to a hinge that rotatably connects a second connection object to the first connection object are known. Among them, there is known a hinge that is reduced in size and weight by generating a friction torque between a first member and a second member (see Patent Document 1 and Patent Document 2).

特開２００４−２２５７８０号公報JP 2004-225780 A 特開２００５−３０４６３号公報JP 2005-30463 A

前記の各特許文献に記載のヒンジにおいては、第一部材における軸部を第二部材における筒状部に挿入するとともに、軸部と筒状部の間にスプリングピンを介挿する構成としている。そして、スプリングピンの弾性力を利用して、スプリングピンの内周面と軸部の外周面との間で摩擦力を発生させ、第一部材と第二部材との間にフリクショントルクを発生させている。   In the hinges described in the respective patent documents, the shaft portion of the first member is inserted into the cylindrical portion of the second member, and a spring pin is interposed between the shaft portion and the cylindrical portion. Then, using the elastic force of the spring pin, a frictional force is generated between the inner peripheral surface of the spring pin and the outer peripheral surface of the shaft portion, and a friction torque is generated between the first member and the second member. ing.

前記従来技術の如く、軸部と筒状部の間にスプリングピンを介挿する構成によれば、スプリングピンの厚さ分だけヒンジの外径が大きくなっていた。即ち、フリクショントルクを得るためのスプリングピンを軸部の周囲に配置しているため、ヒンジの小型化・軽量化の阻害要因となっていた。   According to the configuration in which the spring pin is inserted between the shaft portion and the cylindrical portion as in the prior art, the outer diameter of the hinge is increased by the thickness of the spring pin. That is, since the spring pin for obtaining the friction torque is arranged around the shaft portion, it has been an obstacle to the reduction in size and weight of the hinge.

本発明は以上の如き状況に鑑みてなされたものであり、ヒンジの外径を小さくすることにより、小型化・軽量化が可能となる、ヒンジを提供することを課題とする。   The present invention has been made in view of the above situation, and an object of the present invention is to provide a hinge that can be reduced in size and weight by reducing the outer diameter of the hinge.

本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。   The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

即ち、請求項１においては、略円柱形状に形成され、その中途部において直径方向に貫通する貫通孔が開口された軸部と、該軸部の軸心方向に前記軸部と連続する第一支持部と、を有する第一部材と、前記軸部が挿入される有底筒状のケース部と、該ケース部の軸心方向に前記ケース部と連続する第二支持部と、を有する第二部材と、を備えるヒンジであって、前記貫通孔は、前記軸部の軸心方向を長手方向とする長穴として開口され、前記軸部における軸心方向中途部には、前記貫通孔の長手方向における一端から他端までの間の部分が径方向外側に突出して形成された大径部が設けられ、前記軸部の途中部が半径方向内側に収縮した状態で前記ケース部に挿入されることにより、前記ケース部の内周面には、前記軸部の弾性力によって前記軸部における前記大径部の外周面が押圧されるとともに、前記第二部材は前記第一部材に対して摺動抵抗を受けつつ相対回転可能とされるものである。 That is, according to the first aspect of the present invention, a shaft portion that is formed in a substantially cylindrical shape and has a through-hole that penetrates in the diameter direction in the middle portion thereof, and a first portion that is continuous with the shaft portion in the axial direction of the shaft portion. A first member having a support portion, a bottomed cylindrical case portion into which the shaft portion is inserted, and a second support portion continuous with the case portion in the axial direction of the case portion. The through-hole is opened as a long hole whose longitudinal direction is the axial direction of the shaft portion, and the through-hole is formed in the middle portion of the axial portion in the axial direction. A portion between one end and the other end in the longitudinal direction is provided with a large-diameter portion formed so as to protrude radially outward, and the middle portion of the shaft portion is inserted into the case portion in a state of contracting radially inward. As a result, the inner peripheral surface of the case portion is moved forward by the elastic force of the shaft portion. Wherein the shaft portion with the outer peripheral surface of the large diameter portion is pressed, the second member is intended to be relatively rotatable while receiving the sliding resistance relative to the first member.

請求項２においては、前記貫通孔には、前記軸部の半径方向内側に収縮した状態のスプリングピンが挿入されるものである。   According to a second aspect of the present invention, a spring pin contracted inward in the radial direction of the shaft portion is inserted into the through hole.

請求項３においては、前記大径部の外周面には、前記軸部の周方向に、潤滑用の溝が形成されるものである。 According to a third aspect of the present invention , a lubricating groove is formed on the outer peripheral surface of the large-diameter portion in the circumferential direction of the shaft portion.

請求項４においては、前記ケース部の内周面にはカム溝が形成され、前記大径部の外周面には前記カム溝と係合するカム部が外側に突出して形成されるものである。 According to a fourth aspect of the present invention, a cam groove is formed on the inner peripheral surface of the case portion, and a cam portion that engages with the cam groove is formed on the outer peripheral surface of the large diameter portion so as to protrude outward. .

本発明の効果として、以下に示すような効果を奏する。
即ち、本発明に係るヒンジによれば、ヒンジの外径を小さくすることにより、小型化・軽量化が可能となる。 As effects of the present invention, the following effects can be obtained.
That is, according to the hinge according to the present invention, it is possible to reduce the size and weight by reducing the outer diameter of the hinge.

第一実施形態に係るヒンジを示した斜視図。The perspective view which showed the hinge which concerns on 1st embodiment. 同じくヒンジの分解斜視図。The exploded perspective view of a hinge similarly. （ａ）及び（ｂ）はそれぞれ、ヒンジを示した一部切欠正面図及び一部切欠平面図。(A) And (b) is the partially notched front view and partially notched top view which respectively showed the hinge. 図３（ａ）におけるＡ−Ａ線断面図。AA line sectional view in Drawing 3 (a). 第二実施形態に係るヒンジを示した分解斜視図。The disassembled perspective view which showed the hinge which concerns on 2nd embodiment. 第三実施形態に係るヒンジを示した分解斜視図。The disassembled perspective view which showed the hinge which concerns on 3rd embodiment. 第三実施形態に係るヒンジの中途部断面図。The middle part sectional view of the hinge concerning a third embodiment.

まず、本発明の第一実施形態に係るヒンジ１０について、図１から図４を用いて説明する。本明細書においては、各図中に示す矢印の方向をヒンジにおける方向として説明する。つまり、本実施形態に係るヒンジ１０は軸心方向を左右に向けた軸状部材として形成されており、後述する第一部材２０と第二部材５０とが、左右方向に向けた軸心を中心として相対的に回転可能に構成されている。なお、図２、図５、及び図６における一点鎖線は各部材を接続する際の位置関係を示している。   First, the hinge 10 which concerns on 1st embodiment of this invention is demonstrated using FIGS. 1-4. In this specification, the direction of the arrow shown in each figure is demonstrated as a direction in a hinge. That is, the hinge 10 according to the present embodiment is formed as a shaft-like member whose axial direction is directed to the left and right, and a first member 20 and a second member 50, which will be described later, are centered on the axial center directed to the lateral direction. As a relatively rotatable structure. In addition, the dashed-dotted line in FIG.2, FIG.5 and FIG.6 has shown the positional relationship at the time of connecting each member.

ヒンジ１０は、例えばノートパソコンの本体部とディスプレイ部のような二つの部材を回動可能に連結するための連結具として用いられる。以下、ヒンジ１０が連結する二つの部材を、「第一連結対象物」及び「第二連結対象物」として説明する。   The hinge 10 is used as a connector for rotatably connecting two members such as a main body portion and a display portion of a notebook personal computer, for example. Hereinafter, the two members connected by the hinge 10 will be described as a “first connection object” and a “second connection object”.

図１から図４に示すようにヒンジ１０は、第一部材２０と第二部材５０とを主な構成要素として備える。   As shown in FIGS. 1 to 4, the hinge 10 includes a first member 20 and a second member 50 as main components.

第一部材２０は、第一連結対象物に固定される金属製部材である。第一部材２０は、軸部２１と、軸部２１の左側で軸部２１と連続する第一支持部２２と、を有する。
軸部２１は、左右方向における中途部が拡径した円柱形状に形成され、拡径した中途部の上下面が一対の平面で切り取られている。そして、軸部２１の中途部においては、上下の平面に対して直交する直径方向（上下方向）に、軸部２１を貫通する貫通孔２１ａが開口されている。この貫通孔２１ａにより、軸部２１の中途部は前後方向に弾性変形可能に（外力によって前後方向に縮幅可能に）構成されている。 The first member 20 is a metal member fixed to the first connection object. The first member 20 includes a shaft portion 21 and a first support portion 22 that is continuous with the shaft portion 21 on the left side of the shaft portion 21.
The shaft portion 21 is formed in a cylindrical shape with an enlarged middle portion in the left-right direction, and the upper and lower surfaces of the enlarged middle portion are cut off by a pair of planes. And in the midway part of the axial part 21, the through-hole 21a which penetrates the axial part 21 is opened by the diameter direction (up-down direction) orthogonal to an up-and-down plane. By this through hole 21a, the middle portion of the shaft portion 21 is configured to be elastically deformable in the front-rear direction (can be reduced in width in the front-rear direction by an external force).

軸部２１の左側には、第一連結対象物に固定される第一支持部２２が形成されている。第一支持部２２は円柱形状の上下面が一対の平面で切り取られた形状に形成されている。第一支持部２２には、一対の平面を貫いて固定孔２２ａが開口されている。この固定孔２２ａにボルト等の固定具を挿入した状態で、固定具を第一連結対象物に固定することにより、第一支持部２２は第一連結対象物に固定されるのである。   On the left side of the shaft portion 21, a first support portion 22 fixed to the first connection object is formed. The first support portion 22 is formed in a shape in which the upper and lower surfaces of a columnar shape are cut out by a pair of planes. A fixing hole 22a is opened in the first support portion 22 through a pair of planes. The first support portion 22 is fixed to the first connection object by fixing the fixing tool to the first connection object in a state where a fixing tool such as a bolt is inserted into the fixing hole 22a.

軸部２１と第一支持部２２との間には、半径方向外側に拡径した被係合部２３が形成されている。この被係合部２３が後述する第二部材５０における係合部５１ｃと係合することにより、第一部材２０と第二部材５０とが連結されるのである。   Between the shaft portion 21 and the first support portion 22, an engaged portion 23 whose diameter is increased outward in the radial direction is formed. The first member 20 and the second member 50 are connected by engaging the engaged portion 23 with an engaging portion 51c in the second member 50 described later.

第二部材５０は、第二連結対象物に固定される樹脂製部材である。第二部材５０は、ケース部５１と、ケース部５１の右側でケース部５１と連続する第二支持部５２と、を有する。
ケース部５１は、右側が閉塞され、左側が開放された有底筒状部材である。ケース部５１の左側端部における上下部には切欠き５１ｂが形成されている。また、ケース部５１の左側端部における内周面には、半径方向内側に突出した係合部５１ｃが形成されている。第一部材２０の軸部２１をケース部５１に挿入した際には、被係合部２３によってケース部５１の左側端部が拡径するように弾性変形される。そして、係合部５１ｃが被係合部２３と係合して、第一部材２０と第二部材５０とが連結されるのである。 The second member 50 is a resin member fixed to the second connection object. The second member 50 includes a case part 51 and a second support part 52 that is continuous with the case part 51 on the right side of the case part 51.
The case portion 51 is a bottomed cylindrical member whose right side is closed and whose left side is open. Cutouts 51 b are formed in the upper and lower portions of the left end portion of the case portion 51. Further, an engagement portion 51 c that protrudes inward in the radial direction is formed on the inner peripheral surface of the left end portion of the case portion 51. When the shaft portion 21 of the first member 20 is inserted into the case portion 51, the left end portion of the case portion 51 is elastically deformed by the engaged portion 23 so that the diameter thereof is increased. And the engaging part 51c engages with the to-be-engaged part 23, and the 1st member 20 and the 2nd member 50 are connected.

ケース部５１の右側には、第二連結対象物に固定される第二支持部５２が形成されている。第二支持部５２は円柱形状の上下面が一対の平面で切り取られた形状に形成されている。第二支持部５２には、一対の平面を貫いて固定孔５２ａが開口されている。この固定孔５２ａにボルト等の固定具を挿入した状態で、固定具を第二連結対象物に固定することにより、第二支持部５２は第二連結対象物に固定されるのである。   On the right side of the case part 51, a second support part 52 fixed to the second connection object is formed. The 2nd support part 52 is formed in the shape by which the cylindrical upper and lower surfaces were cut off by a pair of planes. A fixing hole 52a is opened in the second support portion 52 through a pair of planes. The second support portion 52 is fixed to the second connection object by fixing the fixing tool to the second connection object in a state where a fixing tool such as a bolt is inserted into the fixing hole 52a.

ヒンジ１０を形成する際には、第一部材２０における軸部２１の中途部に対して、半径方向内側に力を加えて前後方向に縮幅させる。この状態で、軸部２１を第二部材５０のケース部５１に挿入するのである。   When the hinge 10 is formed, a force is applied inward in the radial direction with respect to the middle portion of the shaft portion 21 of the first member 20 to reduce the width in the front-rear direction. In this state, the shaft portion 21 is inserted into the case portion 51 of the second member 50.

前記の如くケース部５１に軸部２１を挿入してヒンジ１０を形成した際には、貫通孔２１ａが形成された軸部２１の中途部が半径方向内側に収縮した状態でケース部５１に挿入される。これにより、ケース部５１の内周面には、図４中の矢印Ｆに示す如く、軸部２１の弾性力によって軸部２１の外周面からの押圧力が加えられる。換言すれば、ケース部５１の内周面は、軸部２１の弾性力によって軸部２１の外周面が押圧されるのである。このように、第二部材５０は軸部２１に対して摺動抵抗を受けつつ相対的に回転可能とされる。即ち、第一部材２０と第二部材５０とは、軸部２１とケース部５１の内周面との摺動抵抗によるフリクショントルクを受けつつ、軸心回りに回転可能となるのである。   As described above, when the shaft portion 21 is inserted into the case portion 51 to form the hinge 10, the middle portion of the shaft portion 21 in which the through hole 21 a is formed is inserted into the case portion 51 in a state of being contracted radially inward. Is done. As a result, as shown by an arrow F in FIG. 4, a pressing force from the outer peripheral surface of the shaft portion 21 is applied to the inner peripheral surface of the case portion 51 by the elastic force of the shaft portion 21. In other words, the outer peripheral surface of the shaft portion 21 is pressed on the inner peripheral surface of the case portion 51 by the elastic force of the shaft portion 21. As described above, the second member 50 is rotatable relative to the shaft portion 21 while receiving sliding resistance. That is, the first member 20 and the second member 50 can rotate around the axis while receiving friction torque due to sliding resistance between the shaft portion 21 and the inner peripheral surface of the case portion 51.

上記の如く、本実施形態に係るヒンジ１０によれば、軸部２１における中途部に貫通孔２１ａを開口し、軸部２１の中途部の弾性力を利用して摩擦力を発生させる構成であるため、スプリングピン等、他の部品を使用しない。このためヒンジ１０は、スプリングピンを軸部の周囲に配置して摩擦力を発生させる構成と比較して、外径を小さくすることができる。即ち、フリクショントルクを得るために貫通孔２１ａを開口した軸部２１を用いることにより、軸部２１とケース部５１との間に他の部品を配設しないため、ヒンジの小型化・軽量化が可能となるである。   As described above, according to the hinge 10 according to the present embodiment, the through hole 21a is opened in the middle portion of the shaft portion 21, and the frictional force is generated using the elastic force of the middle portion of the shaft portion 21. Therefore, other parts such as spring pins are not used. For this reason, the hinge 10 can make an outer diameter small compared with the structure which arrange | positions a spring pin around the axial part and generates a frictional force. That is, by using the shaft portion 21 having the through hole 21a opened to obtain the friction torque, no other parts are provided between the shaft portion 21 and the case portion 51, so that the hinge can be reduced in size and weight. Is possible.

次に、本発明の第二実施形態に係るヒンジ１１０について、図５を用いて説明する。本実施形態以降で説明するヒンジにおいては、前記第一実施形態に係るヒンジ１０と共通する構成には同符号を付して説明を省略し、異なる構成を中心に説明する。   Next, the hinge 110 which concerns on 2nd embodiment of this invention is demonstrated using FIG. In the hinges described in the following embodiments, the same reference numerals are given to the components common to the hinges 10 according to the first embodiment, the description thereof is omitted, and different components will be mainly described.

本実施形態に係るヒンジ１１０においては、軸部１２１の中途部において、上下方向に軸部１２１を貫通する貫通孔１２１ａが開口されている。この貫通孔１２１ａにより、軸部１２１の中途部は前後方向に弾性変形可能に構成されている。そして、貫通孔１２１ａには、軸部１２１の半径方向内側に収縮した状態のスプリングピン３０が挿入される。   In the hinge 110 according to the present embodiment, a through hole 121a that penetrates the shaft portion 121 in the vertical direction is opened in the middle portion of the shaft portion 121. By the through hole 121a, the middle part of the shaft part 121 is configured to be elastically deformable in the front-rear direction. Then, the spring pin 30 in a contracted state on the inner side in the radial direction of the shaft portion 121 is inserted into the through hole 121a.

具体的には図５に示す如く、軸部１２１の軸心部分に、右端側から中途部に至るまで、スプリングピン３０と略同径の挿入孔１２１ｂが開口されている。そして、スプリングピン３０を半径方向内側に収縮させた状態で、右側から軸部１２１の挿入孔１２１ｂに挿入し、さらに軸部１２１をケース部５１に挿入するのである。これにより、ケース部５１の内周面には、軸部１２１の弾性力に加えて、スプリングピン３０の弾性力によって、軸部１２１の外周面から押圧力が加えられる。換言すれば、ケース部５１の内周面は、軸部１２１の弾性力とスプリングピン３０の弾性力との合力によって軸部１２１の外周面が押圧されるのである。このように、第二部材５０は軸部１２１に対して摺動抵抗を受けつつ相対的に回転可能とされる。   Specifically, as illustrated in FIG. 5, an insertion hole 121 b having substantially the same diameter as the spring pin 30 is opened from the right end side to the midway portion in the axial center portion of the shaft portion 121. Then, with the spring pin 30 contracted radially inward, the spring pin 30 is inserted into the insertion hole 121b of the shaft portion 121 from the right side, and the shaft portion 121 is further inserted into the case portion 51. Thereby, a pressing force is applied to the inner peripheral surface of the case portion 51 from the outer peripheral surface of the shaft portion 121 by the elastic force of the spring pin 30 in addition to the elastic force of the shaft portion 121. In other words, the outer peripheral surface of the shaft portion 121 is pressed on the inner peripheral surface of the case portion 51 by the resultant force of the elastic force of the shaft portion 121 and the elastic force of the spring pin 30. As described above, the second member 50 is rotatable relative to the shaft 121 while receiving sliding resistance.

上記の如く、本実施形態に係るヒンジ１１０によれば、軸部１２１における中途部に貫通孔１２１ａを開口し、軸部１２１の中途部の弾性力だけではなく、スプリングピン３０の弾性力をも利用して摩擦力を発生させる構成としている。このためヒンジ１１０は、軸部のみの弾性力を利用して摩擦力を発生させる構成と比較して、より効率的にフリクショントルクを得ることが可能となる。換言すれば、ヒンジ１１０におけるフリクショントルクの安定性を向上させ、さらにヒンジ１１０の耐久性を向上させることができるのである。また、所望のフリクショントルクが必要な場合でもヒンジ１１０を大径化する必要がないため、ヒンジ１１０の小型化・軽量化が可能となる。   As described above, according to the hinge 110 according to the present embodiment, the through hole 121a is opened in the middle portion of the shaft portion 121, and not only the elastic force of the middle portion of the shaft portion 121 but also the elastic force of the spring pin 30 is provided. It is configured to generate frictional force using it. For this reason, the hinge 110 can obtain the friction torque more efficiently as compared with the configuration in which the friction force is generated using the elastic force of only the shaft portion. In other words, the stability of the friction torque in the hinge 110 can be improved, and the durability of the hinge 110 can be further improved. In addition, even when a desired friction torque is required, it is not necessary to increase the diameter of the hinge 110, so that the hinge 110 can be reduced in size and weight.

また、本実施形態に係るヒンジ１１０においては、軸部１２１の外周面には、軸部１２１の周方向に溝１２１ｃ・１２１ｃが形成されている。この溝１２１ｃ・１２１ｃに潤滑材であるグリスが溜ることにより、ケース部５１の内周面と軸部１２１の外周面との摺動性能及び耐久性能を向上させることができる。即ち、第一部材１２０と第二部材５０とが摺動抵抗によるフリクショントルクを受けつつ回転する際の摺動性能及び耐久性能を向上させることができるのである。   Further, in the hinge 110 according to the present embodiment, grooves 121 c and 121 c are formed on the outer peripheral surface of the shaft portion 121 in the circumferential direction of the shaft portion 121. The grease, which is a lubricant, accumulates in the grooves 121c and 121c, so that sliding performance and durability performance between the inner peripheral surface of the case portion 51 and the outer peripheral surface of the shaft portion 121 can be improved. That is, the sliding performance and the durability performance when the first member 120 and the second member 50 are rotated while receiving the friction torque due to the sliding resistance can be improved.

次に、本発明の第三実施形態に係るヒンジ２１０について、図６及び図７を用いて説明する。本実施形態に係るヒンジ２１０において、ケース部２５１の内周面には軸心方向（左右方向）にカム溝２５１ａが形成され、軸部２２１の外周面にはカム溝２５１ａと係合するカム部２２１ｂが外側に突出して形成されている。このため、ケース部２５１に軸部２２１を挿入してヒンジ２１０を形成し、第一部材２２０と第二部材２５０とを相対的に回転させた場合に、図７に示す如くカム部２２１ｂがカム溝２５１ａに係合した際に、使用者にクリック感を与えることができる。   Next, the hinge 210 which concerns on 3rd embodiment of this invention is demonstrated using FIG.6 and FIG.7. In the hinge 210 according to the present embodiment, a cam groove 251a is formed on the inner peripheral surface of the case portion 251 in the axial direction (left-right direction), and the cam portion is engaged with the cam groove 251a on the outer peripheral surface of the shaft portion 221. 221b is formed to protrude outward. Therefore, when the shaft portion 221 is inserted into the case portion 251 to form the hinge 210 and the first member 220 and the second member 250 are relatively rotated, the cam portion 221b is cammed as shown in FIG. A click feeling can be given to the user when engaged with the groove 251a.

なお、本実施形態に係るヒンジ２１０において、前記第二実施形態におけるヒンジ１１０の如く、軸部２２１にスプリングピンを挿入する構成や、軸部２２１の外周面に周方向に溝を形成する構成とすることも可能である。   In the hinge 210 according to the present embodiment, as in the hinge 110 in the second embodiment, a configuration in which a spring pin is inserted into the shaft portion 221 or a configuration in which a groove is formed in the circumferential direction on the outer peripheral surface of the shaft portion 221. It is also possible to do.

１０ ヒンジ
２０ 第一部材
２１ 軸部
２１ａ 貫通孔
５０ 第二部材
５１ ケース部
DESCRIPTION OF SYMBOLS 10 Hinge 20 1st member 21 Shaft part 21a Through-hole 50 Second member 51 Case part

Claims (4)

略円柱形状に形成され、その中途部において直径方向に貫通する貫通孔が開口された軸部と、該軸部の軸心方向に前記軸部と連続する第一支持部と、を有する第一部材と、
前記軸部が挿入される有底筒状のケース部と、該ケース部の軸心方向に前記ケース部と連続する第二支持部と、を有する第二部材と、を備えるヒンジであって、
前記貫通孔は、前記軸部の軸心方向を長手方向とする長穴として開口され、
前記軸部における軸心方向中途部には、前記貫通孔の長手方向における一端から他端までの間の部分が径方向外側に突出して形成された大径部が設けられ、
前記軸部の途中部が半径方向内側に収縮した状態で前記ケース部に挿入されることにより、前記ケース部の内周面には、前記軸部の弾性力によって前記軸部における前記大径部の外周面が押圧されるとともに、前記第二部材は前記第一部材に対して摺動抵抗を受けつつ相対回転可能とされる、ヒンジ。 A first part having a substantially cylindrical shape and having a shaft part in which a through-hole penetrating in the diameter direction is opened in the middle part thereof, and a first support part continuous with the shaft part in the axial direction of the shaft part. Members,
A hinge comprising: a bottomed cylindrical case portion into which the shaft portion is inserted; and a second member having a second support portion continuous with the case portion in the axial direction of the case portion,
The through-hole is opened as a long hole whose longitudinal direction is the axial direction of the shaft portion,
A portion between the one end and the other end in the longitudinal direction of the through hole is provided in the middle portion in the axial direction of the shaft portion, and a large diameter portion is formed so as to protrude radially outward.
By inserting the intermediate portion of the shaft portion into the case portion in a state where the intermediate portion of the shaft portion contracts radially inward, the large diameter portion of the shaft portion is formed on the inner peripheral surface of the case portion by the elastic force of the shaft portion. And the second member is capable of relative rotation while being subjected to sliding resistance with respect to the first member. 前記貫通孔には、前記軸部の半径方向内側に収縮した状態のスプリングピンが挿入される、請求項１に記載のヒンジ。   The hinge according to claim 1, wherein a spring pin in a contracted state is inserted into the through hole in a radially inner side of the shaft portion. 前記大径部の外周面には、前記軸部の周方向に、潤滑用の溝が形成される、請求項１又は請求項２に記載のヒンジ。 The hinge according to claim 1 or 2, wherein a groove for lubrication is formed on an outer peripheral surface of the large-diameter portion in a circumferential direction of the shaft portion. 前記ケース部の内周面にはカム溝が形成され、前記大径部の外周面には前記カム溝と係合するカム部が外側に突出して形成される、請求項１から請求項３の何れか１項に記載のヒンジ。 4. A cam groove is formed on the inner peripheral surface of the case portion, and a cam portion engaging with the cam groove is formed on the outer peripheral surface of the large diameter portion so as to protrude outward. The hinge according to any one of claims.
JP2013154702A 2013-07-25 2013-07-25 Hinge Expired - Fee Related JP6185782B2 (en)

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