JP3868356B2

JP3868356B2 - hinge

Info

Publication number: JP3868356B2
Application number: JP2002268361A
Authority: JP
Inventors: 忠芳中村; 英丈山澤
Original assignee: Nitto Kogyo Corp
Current assignee: Nitto Kogyo Corp
Priority date: 2002-09-13
Filing date: 2002-09-13
Publication date: 2007-01-17
Anticipated expiration: 2022-09-13
Also published as: JP2004107888A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば電気・電子機器収納用箱等の箱類において、箱本体に扉をヒンジ結合して取り付ける蝶番に関するものである。
【０００２】
【従来の技術】
【特許文献１】
実開平５−４７２７７号公報
【特許文献２】
実公平６−５０６２７号公報
【０００３】
電気・電子機器収納用箱等の箱類において、箱本体に扉をヒンジ結合して取り付ける蝶番は、扉は箱本体から分離するため蝶番ピンを引き抜くことができるようにするため、蝶番ピンの先端に着脱自在なＥ型止め輪等の抜け止め具を設けたものが普通である。
【０００４】
その代表的なものは上記の特許文献１に記載のように、蝶番ピンの抜け止めを蝶番ピンの先端側に形成した細頸部に抜け止め具を嵌合させたものや、特許文献２に記載のように、蝶番ピンの抜け止めを蝶番ピンの先端側に形成した環状溝にピンブッシュを嵌合させたものがある。
【０００５】
【発明が解決しようとする課題】
ところが、前記した特許文献のものは、電気・電子機器収納用箱等の二次加工等で扉を箱本体から外す際に蝶番ピンを抜き出すには抜け止め具（ピンブッシュ）を細頸部（環状溝）から外して行わなければならず、そのため、外した抜け止め具（ピンブッシュ）の紛失を防止するための保管が必要であった。そこで、抜け止め具を外すことなく扉を外す際に蝶番ピンを容易に抜き取りできることは勿論扉を取り付ける際にも軸筒部に挿通した蝶番ピンを容易に抜け止めできる蝶番ピンの抜け止め構造が待望されていた。
【０００６】
【課題を解決するための手段】
前記の課題を解決するためになされた本発明の蝶番は、ボデー蝶番部の軸筒部と扉蝶番部の軸筒部に挿通してヒンジ結合する蝶番ピンを、基端にピン頭部を形成するとともに先端に近い先方部の周縁に環状溝を形成したものとし、該蝶番ピンの環状溝に前記ボデー蝶番部又は扉蝶番部に取り付けた抜け止め弾性部材を介入させた蝶番において、抜け止め弾性部材をＯリング状に形成して、このＯリング状の抜け止め弾性部材をボデー蝶番部又は扉蝶番部に設けた引掛片に該引掛片の両側に設けた係止凹部に係合させたうえ弾性を利用して嵌合して取り付けたことを特徴とするものを請求項１に記載の発明とし、この発明において、引掛片を、その両側のうち一方の側端部が軸筒部１２の端面に臨むように折曲形成したうえ該引掛片の一方の側端部に係止凹部を他方の側端部の基端に係止凹部を形成したものとしたものを請求項２に記載の発明とする。
【０００７】
本発明によれば、ボデー蝶番部の軸筒部と扉蝶番部の軸筒部に挿通してヒンジ結合する蝶番ピンは先方部の周縁に環状溝を形成したものであり、該環状溝には前記ボデー蝶番部又は扉蝶番部に取り付けた抜け止め弾性部材が介入しているので、蝶番ピンは抜け出ることのないものである。また、抜け止め弾性部材は強い力を受ければ変形するものであるから、ボデー蝶番部と扉蝶番部を分離して扉を外す際に蝶番ピンを強い力で引き抜けば環状溝の溝壁が抜け止め弾性部材を押しつぶして乗り越えて該蝶番ピンは軸筒部から引き出せることとなる。さらに、再び扉を箱本体に取り付けるには蝶番ピンを強い力で軸筒部に押し込み挿通すれば蝶番ピンの先端が抜け止め弾性部材を先端側に押して乗り越えて蝶番ピンの環状溝に抜け止め弾性部材が介入することとなり蝶番ピンが抜け出ることがないものである。
【０００８】
【発明の実施の形態】
次に、本発明の好ましい実施の形態を示す。
〔第１の実施形態〕
先ず、図１〜図５に示す本発明の第１の実施形態を説明する。１は図示を略した箱本体に取り付けるボデー取付部１１に軸筒部１２を設けたボデー蝶番部である。２はこれも図示を略した扉に取り付ける扉取付部２１に軸筒部２２を設けた扉蝶番部である。このボデー蝶番部１と扉蝶番部２はそれぞれの軸筒部１２、２２を一軸状に合致させたうえ蝶番ピン３を挿通してヒンジ結合をしている。なお、図示のものはボデー蝶番部１の軸筒部１２をボデー取付部１１の両側に形成して、扉蝶番部２の軸筒部２２を扉取付部２１の中央にボデー蝶番部１の両側の軸筒部１２、１２の間に介入する構成としているが、これと逆の構成であってもよいことは勿論である。また、ボディ蝶番部１と扉蝶番部２の軸筒部１２，２２は各々一つとしてもよい。
【０００９】
また、前記蝶番ピン３はその基端にピン頭部３１を形成し、先端に近い先方部の周縁に上広がり状の環状溝３２を形成したものである。そして、ボデー蝶番部１又は扉蝶番部２に該環状溝３２に介入する抜け止め弾性部材４を取り付けてある。すなわち、この図示の実施形態にあっては、前記したとおりボデー蝶番部１の両側に軸筒部１２、１２を形成したものであるから、蝶番ピン３の環状溝３２はボデー蝶番部１の軸筒部１２の先端側に臨むこととなるので抜け止め弾性部材４はボデー蝶番部１に取り付けてある。
【００１０】
なお、具体的にはボデー蝶番部１の両側の軸筒部１２、１２の先端側に該軸筒部１２を半割状にした樋状部１３、１３を連設して該樋状部１３の基端に対向した軸筒部１２の先端縁に先端面を傾斜させた引掛片１４を軸筒部１２に平行に張設し、蝶番ピン３の先端側が臨む引掛片１４にゴムよりなるリング状の抜け止め弾性部材４を該引掛片１４の両側に設けた係止凹部１４ａ、１４ａに係合させたうえゴムの弾性を利用して嵌合して取り付けしている。また、扉蝶番部２の軸筒部２２が両側にある構成とした場合には抜け止め部材４が扉蝶番部２に取り付けられることは勿論である。
【００１１】
このように構成されたものは、ボデー蝶番部１と扉蝶番部２の軸筒部１２、２２、１２に挿通した蝶番ピン３の先方部の周縁に形成した環状溝３２には前記ボデー蝶番部１と扉蝶番部２の軸筒部のうち先端側すなわちボデー蝶番部１の軸筒部２２の先端側に取り付けた抜け止め弾性部材４が介入しているので、蝶番ピン１は抜け出ることなく的確にボデー蝶番部１と扉蝶番部２をヒンジ結合するものである。
【００１２】
また、抜け止め弾性部材４は強い力を受ければ弾性変形するものであるから、ボデー蝶番部１と扉蝶番部２を分離して扉を外す際に蝶番ピン３を強い力で引き抜けば環状溝３２の溝壁３２ａが抜け止め弾性部材４を押しつぶして乗り越えて該蝶番ピン３は軸筒部１２、２２、１２から引き出せることとなる。この場合に環状溝３２を上広がり状とすることにより溝壁３２ａがテーパ面となり引き抜きが容易なものとなる。なお、図示のように蝶番ピン３のピン頸部３３が挿通されているボデー蝶番部１の軸筒部１２の先端側を樋状部１３に形成しているため蝶番ピン３のピン頭部３１の下端面３１ａが樋状部１３から露出しているからマイナスドライバー等の先端を当て作業できるので外力を与えやすく、蝶番ピン３は容易に抜き取りができるものである。
【００１３】
また、蝶番ピン３を抜き出してボデー蝶番部１と扉蝶番部２を分離して扉を外した箱本体を塗装しなおす場合等に抜け止め弾性部材４を外す必要がある時には、軸筒部１２には蝶番ピン１が挿通されていないから該抜け止め弾性部材４を容易に取り外すことができるものである。そして、塗装が終了した箱本体と扉を再びヒンジ結合するには抜け止め弾性部材４を軸筒部１２に取り付けて、扉蝶番部２の軸筒部２２をボデー蝶番部１の両軸筒部１２、１２の間に介入させて、次に、該ボデー蝶番部１の軸筒部２２から蝶番ピン３を打ち込めば蝶番ピン３の先端のテーパ面が抜け止め弾性部材４を弾性変形させて押しつぶして蝶番ピン３の先方部の周縁に形成した環状溝３２が抜け止め弾性部材４の位置に達したら該抜け止め弾性部材４が旧状に復帰して環状溝３２内に介入して蝶番ピン３が抜け止めされることとなる。
【００１４】
なお、抜け止め弾性部材４をＯリング状に形成して、このＯリング状の抜け止め弾性部材４をボデー蝶番部１又は扉蝶番部２すなわちボデー蝶番１の軸筒部１２に設けた係止凹部１４ａ付きの引掛片１４に嵌着して取り付けるものとすることにより、該抜け止め弾性部材４の取り付け取り外しが容易であるものである。また、図示のように引掛片１４の先端を傾斜させて係止凹部１４ａ、１４ａを前後に段違いに設けることにより抜け止め弾性部材４が蝶番ピン３の環状溝３２に対して斜め向きとなり、蝶番ピン３の軸筒部２２への挿脱が容易なものとなる。
【００１５】
〔第２の実施形態〕
続いて、図６〜図１１に示す本発明の第２の実施形態を説明する。この実施形態は前記第１の実施形態とは、抜け止め弾性部材４の取り付け方法が相違して他の構成は略同一であるからこの相違する部分を説明して他の説明は図に同符号を付して省略する。
【００１６】
すなわち、抜け止め弾性部材４を取り付けるボデー蝶番部１又は扉蝶番部２の一方である扉取付部２１の両側に軸筒部２２、２２を設けた扉蝶番部２の該扉取付部２１の先端に引掛片１４、１４をその両側のうち一方の側端部１４ｂが軸筒部１２の端面に臨まるように折曲形成したうえ該引掛片１４の一方の側端部１４ｂに係止凹部１４ａを他方の側端部の基端に係止凹部１４ａを形成したものである。そして、蝶番ピン３の先端側が位置することとなる引掛片１４の一方の側端部１４ｂに形成した係止凹部１４ａと引掛片１４の他方の側端部の基端に形成した係止凹部１４ａにゴムよりなるリング状の抜け止め弾性部材４を嵌合して取り付けるものとしている。
【００１７】
このように構成されたものは、ゴムよりなるＯリング状の抜け止め弾性部材４を蝶番ピン３の先端側が位置することとなる引掛片１４の一方の側端部１４ｂに形成した係止凹部１４ａと引掛片１４の他方の側端部の基端に形成した係止凹部１４ａに嵌合して取り付けたものであるから、該Ｏリング状の抜け止め弾性部材４は側端部１４ｂに密接することとなる長手方向の端部が蝶番ピン３の環状溝部３２に介入することとなるので該蝶番ピン３を引き抜きの際に引掛片１４から離脱する虞がないものである。また、該Ｏリング状の抜け止め弾性部材４は蝶番ピン３の引き抜き方向に対して直角方向で引掛片１４に嵌合されているので、Ｏリング状の抜け止め弾性部材４に強い力が加わっても外れることがないものである。
【００１８】
なお、図示のように扉蝶番部２の扉取付部２１の両側の先端に引掛片１４、１４を折曲形成したものとして、一方の引掛片１４にＯリング状の抜け止め弾性部材４を嵌合して他方の引掛片１４を蝶番ピン３のピン頭部３１の係止部ととすることにより、ピン頭部３１の下端面３１ａが露出しているのでマイナスドライバー等の先端を当て作業できるので蝶番ピン３の引き抜き作業が容易なものとなる。
【００１９】
【発明の効果】
以上に説明したように、本発明の蝶番ピンの抜け止め構造は、ボデー蝶番部と扉蝶番部の軸筒部に挿通した蝶番ピンの先方部の周縁に形成した環状溝には抜け止め弾性部材が介入しているので、蝶番ピンは抜け出ることなく的確にボデー蝶番部と扉蝶番部をヒンジ結合するものである。そして、抜け止め弾性部材は強い力を受ければ弾性変形するものであるから、ボデー蝶番部と扉蝶番部を分離して扉を外す際に蝶番ピンを強い力で引き抜けば環状溝の溝壁が抜け止め弾性部材を押しつぶして乗り越えて該蝶番ピンは軸筒部から引き出せることとなるので抜け止め弾性部材を外すことなく蝶番ピンの装脱ができるものである。
よって、本発明は従来の蝶番ピンの抜け止め構造の問題点を解決したもので、業界にもたらす益大なものである。
【図面の簡単な説明】
【図１】本発明の第１の実施形態を示す斜視図である。
【図２】本発明の第１の実施形態を分解して示す斜視図である。
【図３】本発明の第１の実施形態の蝶番ピンとボデー蝶番部の関係を示す図であり、（Ａ）は全体図、（Ｂ）は蝶番ピンの先端側の拡大図、（Ｃ）は蝶番ピンのピン頭部側の拡大図。
【図４】本発明の第１の実施形態を示す正面図である。
【図５】図４のＡ−Ａ断面図である。
【図６】本発明の第２の実施形態を示す斜視図である。
【図７】本発明の第２の実施形態を分解して示す斜視図である。
【図８】本発明の第２の実施形態の蝶番ピンと扉蝶番部の関係を示す図であり、（Ａ）は全体図、（Ｂ）は蝶番ピンの先端側の拡大図、（Ｃ）は蝶番ピンのピン頭部側の拡大図。
【図９】本発明の第２の実施形態を示す正面図である。
【図１０】本発明の第２の実施形態を示す底面図である。
【図１１】図１０のＢ−Ｂ断面図である。
【符号の説明】
１ボデー蝶番部
12 軸筒部
14 引掛片
14a 係止凹部
２扉蝶番部
22 軸筒部
３蝶番ピン
31 ピン頭部
32 環状溝[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hinge for attaching a door to a box body by hinge connection in a box such as an electric / electronic device storage box.
[0002]
[Prior art]
[Patent Document 1]
Japanese Utility Model Publication No. 5-47277 [Patent Document 2]
Japanese Utility Model Publication No. 6-50627
For hinges that are attached to the box body with hinges in boxes such as boxes for electrical and electronic equipment storage, the door is separated from the box body so that the hinge pins can be pulled out. It is common to provide a stopper such as an E-type retaining ring that is detachable.
[0004]
Typical examples thereof are those in which a retainer is fitted to a narrow neck formed on the distal end side of the hinge pin as described in Patent Document 1 above, As described, there is a type in which a pin bush is fitted in an annular groove in which a hinge pin is prevented from coming off at the tip side of the hinge pin.
[0005]
[Problems to be solved by the invention]
However, in the above-mentioned patent document, when removing the door from the box body by secondary processing or the like of an electric / electronic device storage box or the like, a retaining tool (pin bushing) is attached to the narrow neck ( Therefore, it was necessary to store the stopper to prevent the removed stopper (pin bush) from being lost. Therefore, when removing the door without removing the retainer, the hinge pin can be easily pulled out.Of course, when the door is attached, the hinge pin retaining structure that can easily prevent the hinge pin inserted through the shaft tube from being removed. It was long-awaited.
[0006]
[Means for Solving the Problems]
The hinge of the present invention, which has been made to solve the above-mentioned problems, is formed with a hinge pin that is inserted into the shaft tube portion of the body hinge portion and the shaft tube portion of the door hinge portion and hinged, and a pin head portion is formed at the base end. In addition, in the hinge in which the annular groove is formed in the peripheral edge of the tip part near the tip, and the retaining elastic member attached to the body hinge part or the door hinge part is intervened in the annular groove of the hinge pin, A member is formed in an O-ring shape, and this O-ring-shaped retaining elastic member is engaged with a hooking piece provided on the body hinge part or the door hinge part in a locking recess provided on both sides of the hooking piece. The invention according to claim 1 is characterized in that it is fitted and attached using elasticity, and in this invention, the hooking piece has one side end portion of both sides of the shaft tube portion 12. one side of the cited Kakehen after forming bent so as to face the end face The invention according the locking recess at the proximal end of the other side end what was obtained by forming a locking recess in claim 2 in part.
[0007]
According to the present invention, the hinge pin that is inserted into the shaft tube portion of the body hinge portion and the shaft tube portion of the door hinge portion and hinged is formed with an annular groove on the periphery of the front portion, Since the retaining elastic member attached to the body hinge part or the door hinge part intervenes, the hinge pin does not come out. In addition, the retaining elastic member deforms when receiving a strong force, so when separating the body hinge part and the door hinge part and removing the door, if the hinge pin is pulled out with a strong force, the groove wall of the annular groove is formed. The hinge pin can be pulled out from the shaft tube portion by crushing over the retaining elastic member and getting over it. Furthermore, to attach the door to the box body again, if the hinge pin is pushed into the shaft tube part with a strong force and inserted, the tip of the hinge pin will be prevented from coming off and the elastic member will be pushed over the tip side to get over the ring groove of the hinge pin. The member will intervene and the hinge pin will not come out.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, a preferred embodiment of the present invention will be shown.
[First Embodiment]
First, a first embodiment of the present invention shown in FIGS. 1 to 5 will be described. Reference numeral 1 denotes a body hinge part in which a shaft cylinder part 12 is provided on a body attaching part 11 attached to a box body (not shown). Reference numeral 2 denotes a door hinge portion in which a shaft tube portion 22 is provided on a door mounting portion 21 attached to a door (not shown). The body hinge portion 1 and the door hinge portion 2 are hinge-coupled by inserting the hinge pins 3 after the shaft tube portions 12 and 22 are uniaxially matched. In the illustrated example, the shaft tube portion 12 of the body hinge portion 1 is formed on both sides of the body mounting portion 11, and the shaft tube portion 22 of the door hinge portion 2 is formed on both sides of the body hinge portion 1 in the center of the door mounting portion 21. Although it is set as the structure which intervenes between the shaft cylinder parts 12 and 12, of course, the structure opposite to this may be sufficient. Moreover, the axial cylinder parts 12 and 22 of the body hinge part 1 and the door hinge part 2 are good also as one, respectively.
[0009]
Further, the hinge pin 3 is formed with a pin head 31 at the base end and an upwardly extending annular groove 32 at the peripheral edge of the tip portion near the tip. Then, a retaining elastic member 4 that intervenes in the annular groove 32 is attached to the body hinge portion 1 or the door hinge portion 2. That is, in the illustrated embodiment, as described above, the shaft tube portions 12 and 12 are formed on both sides of the body hinge portion 1, so that the annular groove 32 of the hinge pin 3 is the shaft of the body hinge portion 1. The stopper elastic member 4 is attached to the body hinge portion 1 because it faces the distal end side of the cylindrical portion 12.
[0010]
More specifically, hook-shaped portions 13, 13 each having a half-cut shape of the shaft tube portion 12 are connected to the distal ends of the shaft tube portions 12, 12 on both sides of the body hinge portion 1. A hooking piece 14 having a tip surface inclined at the tip edge of the shaft tube portion 12 facing the base end of the shaft tube 12 is stretched in parallel to the shaft tube portion 12, and a ring made of rubber is formed on the hook piece 14 facing the tip side of the hinge pin 3. Jo of retaining the elastic member 4 is mounted fitted by utilizing the elasticity of the rubber after having engaged the locking recess 14a, 14a provided on both sides of the catching piece 14. Moreover, when it is set as the structure which has the axial cylinder part 22 of the door hinge part 2 on both sides, of course, the retaining member 4 is attached to the door hinge part 2. As shown in FIG.
[0011]
What is configured in this manner is that the body hinge portion is formed in the annular groove 32 formed in the peripheral edge of the front portion of the hinge pin 3 inserted through the shaft tube portions 12, 22, 12 of the body hinge portion 1 and the door hinge portion 2. 1 and the hinged elastic member 4 attached to the distal end side of the axial tube portion 22 of the body hinge portion 1 among the axial tube portions of the door hinge portion 2 intervenes, so that the hinge pin 1 does not come out accurately. The body hinge part 1 and the door hinge part 2 are hinge-coupled.
[0012]
Further, since the retaining elastic member 4 is elastically deformed when receiving a strong force, when the body hinge portion 1 and the door hinge portion 2 are separated and the door is removed, the hinge pin 3 is pulled out with a strong force to form an annular shape. The groove wall 32a of the groove 32 crushes and climbs over the elastic member 4 to prevent the hinge pin 3 from being pulled out of the shaft tube portions 12, 22, and 12. In this case, when the annular groove 32 is formed so as to expand upward, the groove wall 32a becomes a tapered surface and can be easily pulled out. As shown in the drawing, since the tip side of the shaft tube portion 12 of the body hinge portion 1 through which the pin neck portion 33 of the hinge pin 3 is inserted is formed in the hook-shaped portion 13, the pin head portion 31 of the hinge pin 3 is formed. Since the lower end surface 31a is exposed from the bowl-shaped portion 13, the tip of a flathead screwdriver or the like can be applied so that an external force can be easily applied, and the hinge pin 3 can be easily removed.
[0013]
When the hinge pin 3 is extracted to separate the body hinge portion 1 and the door hinge portion 2 and the box body with the door removed is repainted, etc., when it is necessary to remove the retaining elastic member 4, the shaft tube portion 12 Since the hinge pin 1 is not inserted therethrough, the retaining elastic member 4 can be easily removed. Then, in order to hinge-connect the box body and the door which have been painted again, the retaining elastic member 4 is attached to the shaft tube portion 12, and the shaft tube portion 22 of the door hinge portion 2 is connected to the both shaft tube portions of the body hinge portion 1. 12 and 12, and then, when the hinge pin 3 is driven from the shaft tube portion 22 of the body hinge portion 1, the tapered surface of the tip of the hinge pin 3 prevents the elastic member 4 from elastically deforming and crushing. When the annular groove 32 formed on the peripheral edge of the front portion of the hinge pin 3 reaches the position of the retaining elastic member 4, the retaining elastic member 4 returns to the old shape and intervenes in the annular groove 32, and the hinge pin 3. Will be retained.
[0014]
The retaining elastic member 4 is formed in an O-ring shape, and the O-ring retaining elastic member 4 is provided on the body hinge portion 1 or the door hinge portion 2, that is, the shaft tube portion 12 of the body hinge 1. By attaching and attaching to the hooking piece 14 with the recessed part 14a, the attachment / detachment of the retaining elastic member 4 is easy. Further, as shown in the drawing, the tip end of the hooking piece 14 is inclined and the locking recesses 14a, 14a are provided stepwise in the front-rear direction so that the retaining elastic member 4 is inclined with respect to the annular groove 32 of the hinge pin 3, and the hinge The pin 3 can be easily inserted into and removed from the shaft tube portion 22.
[0015]
[Second Embodiment]
Subsequently, a second embodiment of the present invention shown in FIGS. 6 to 11 will be described. Since this embodiment is different from the first embodiment in the attachment method of the retaining elastic member 4 and the other configurations are substantially the same, the different portions will be described, and the other descriptions will be the same as the drawings. Is omitted.
[0016]
That is, the tip of the door mounting portion 21 of the door hinge portion 2 provided with the shaft tube portions 22 and 22 on both sides of the door mounting portion 21 which is one of the body hinge portion 1 or the door hinge portion 2 to which the retaining elastic member 4 is attached. The hooking pieces 14 and 14 are bent so that one side end 14b of the both sides thereof faces the end face of the shaft tube portion 12, and the locking recess 14a is formed on one side end 14b of the hooking piece 14. Is formed with a locking recess 14a at the base end of the other side end. And the latching recessed part 14a formed in the base end of the other side edge part of the latching piece 14 and the latching recessed part 14a formed in one side edge part 14b of the latching piece 14 in which the front end side of the hinge pin 3 will be located It is assumed that a ring-shaped retaining elastic member 4 made of rubber is fitted and attached.
[0017]
What is configured in this manner is a locking recess 14a formed on one side end portion 14b of the hooking piece 14 in which the distal end side of the hinge pin 3 is positioned on the elastic member 4 having an O-ring shape made of rubber. And the O-ring-shaped retaining elastic member 4 is in close contact with the side end portion 14b because it is fitted and attached to a locking recess 14a formed at the base end of the other side end portion of the hooking piece 14. Since the end portion in the longitudinal direction is intervened in the annular groove portion 32 of the hinge pin 3, there is no possibility that the hinge pin 3 is detached from the hooking piece 14 when the hinge pin 3 is pulled out. Further, since the O-ring-shaped retaining elastic member 4 is fitted to the hooking piece 14 in a direction perpendicular to the direction in which the hinge pin 3 is pulled out, a strong force is applied to the O-ring-shaped retaining elastic member 4. Even if it does not come off.
[0018]
As shown in the figure, assuming that the hooking pieces 14 and 14 are bent at both ends of the door mounting portion 21 of the door hinge portion 2, an O-ring-shaped retaining elastic member 4 is fitted to one hooking piece 14. By combining the other hooking piece 14 as a locking portion of the pin head 31 of the hinge pin 3, the lower end surface 31a of the pin head 31 is exposed, so that the tip of a minus driver or the like can be applied. Therefore, the operation of pulling out the hinge pin 3 becomes easy.
[0019]
【The invention's effect】
As described above, the hinge pin retaining structure of the present invention has a retaining elastic member in the annular groove formed in the peripheral edge of the hinge pin and the front end portion of the hinge pin inserted through the shaft cylinder portion of the body hinge portion and the door hinge portion. Therefore, the hinge pin accurately hinges the body hinge part and the door hinge part without coming out. Since the retaining elastic member is elastically deformed when subjected to a strong force, if the hinge pin is pulled out with a strong force when the body hinge part and the door hinge part are separated and the door is removed, the groove wall of the annular groove Since the hinge pin can be pulled out from the shaft tube portion by crushing over the retaining elastic member, the hinge pin can be attached and detached without removing the retaining elastic member.
Therefore, the present invention solves the problems of the conventional hinge pin retaining structure, and is a great advantage for the industry.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of the present invention.
FIG. 2 is an exploded perspective view showing the first embodiment of the present invention.
FIGS. 3A and 3B are diagrams showing a relationship between a hinge pin and a body hinge part according to the first embodiment of the present invention, FIG. 3A is an overall view, FIG. 3B is an enlarged view of a distal end side of the hinge pin, and FIG. The enlarged view of the pin head side of a hinge pin.
FIG. 4 is a front view showing the first embodiment of the present invention.
5 is a cross-sectional view taken along the line AA in FIG.
FIG. 6 is a perspective view showing a second embodiment of the present invention.
FIG. 7 is an exploded perspective view showing a second embodiment of the present invention.
8A and 8B are diagrams showing the relationship between a hinge pin and a door hinge part according to the second embodiment of the present invention, in which FIG. 8A is an overall view, FIG. 8B is an enlarged view of the distal end side of the hinge pin, and FIG. The enlarged view of the pin head side of a hinge pin.
FIG. 9 is a front view showing a second embodiment of the present invention.
FIG. 10 is a bottom view showing a second embodiment of the present invention.
11 is a sectional view taken along line BB in FIG.
[Explanation of symbols]
1 Body hinge
12 Shaft cylinder
14 hook
14a Locking recess 2 Door hinge
22 Shaft cylinder part 3 Hinge pin
31 pin head
32 annular groove

Claims

A hinge pin that is inserted through the shaft tube portion of the body hinge portion and the shaft tube portion of the door hinge portion to be hinged, and a pin head is formed at the base end and an annular groove is formed at the periphery of the distal portion near the tip In the hinge in which the body elastic part attached to the body hinge part or the door hinge part intervenes in the annular groove of the hinge pin, the elastic member is formed in an O-ring shape, The stopper elastic member is fitted to the hook piece provided on the body hinge portion or the door hinge portion with the engaging recess provided on both sides of the hook piece and is fitted and attached using elasticity. hinge.

The hooking piece 14 is bent so that one side end portion 14b of both sides thereof faces the end face of the shaft tube portion 12, and the locking recess 14a is formed on one side end portion 14b of the hooking piece 14 on the other side. The hinge according to claim 1, wherein a locking recess 14a is formed at the base end of the side end.