JPH0523854Y2 - - Google Patents
Info
- Publication number
- JPH0523854Y2 JPH0523854Y2 JP1988042458U JP4245888U JPH0523854Y2 JP H0523854 Y2 JPH0523854 Y2 JP H0523854Y2 JP 1988042458 U JP1988042458 U JP 1988042458U JP 4245888 U JP4245888 U JP 4245888U JP H0523854 Y2 JPH0523854 Y2 JP H0523854Y2
- Authority
- JP
- Japan
- Prior art keywords
- socket
- dust cover
- press
- stud
- fitted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000428 dust Substances 0.000 claims description 38
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pivots And Pivotal Connections (AREA)
- Sealing Devices (AREA)
- Diaphragms And Bellows (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、ボールジヨイント等のジヨイントの
ダストカバーに関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a dust cover for a joint such as a ball joint.
従来の技術
例えば、一端にボール部もつボールスタツド
と、該ボールスタツドのボール部を嵌装抱持する
合成樹脂製のベアリングと、該ベアリングを圧入
嵌着するソケツトとからなるボールジヨイントは
従来より各種リンク機構のジヨイントとしてひろ
く使用されている。Conventional technology For example, a ball joint consisting of a ball stud with a ball portion at one end, a synthetic resin bearing that fits and holds the ball portion of the ball stud, and a socket that press-fits the bearing has been conventionally used. Widely used as a joint in various link mechanisms.
上記のようなジヨイントにおいては、ベアリン
グ部に外部からほこりや雨水等のダストが入り込
むことのないよう、ゴム等の弾性材よりなるダス
トカバーがソケツトとボールスタツド軸部との間
に装着されているのが普通であり、該ダストカバ
ーはボールスタツドの揺動に追従して弾性変形し
隙間が生じたり外れたりすることなく確実なシー
ル機能を持続するようソケツト及びボールスタツ
ドにしつかりと嵌装されていなくてはならない。 In the above joints, a dust cover made of an elastic material such as rubber is installed between the socket and the ball stud shaft to prevent dust, rainwater, etc. from entering the bearing from the outside. Normally, the dust cover deforms elastically following the swinging of the ball stud, and is tightly fitted onto the socket and ball stud so that it maintains a reliable sealing function without creating gaps or coming off. Must-have.
考案が解決しようとする課題
上記のようなジヨイントは、一般にソケツトを
一方のリンクに形成した筒部内に嵌着しボールス
タツドに他方のリンクを嵌装ねじ止め（ナツト締
め）等の手段にて固着することにより、一方のリ
ンクと他方のリンクとの連結用として使用される
ものである。Problems to be solved by the invention In general, the above-mentioned joints are made by fitting the socket into a cylindrical part formed on one link, and then fitting the other link into the ball stud and fixing it by screwing (tightening with nuts) or other means. By doing so, it is used to connect one link with the other link.
上記ソケツトとそれを嵌装した一方のリンクの
筒部との固定は、一般にソケツトを筒部内に嵌装
した後筒部を外側から縮径加工（カシメ加工）す
ると言う手段が採用されるが、尚ソケツトの固定
を確実にするためにソケツト外周面にローレツト
加工を施してソケツト抜出方向のフリクシヨンを
増大させる等従来より種々の抜け止め手段が開発
されている。 To fix the above-mentioned socket and the cylindrical portion of one of the links into which it is fitted, generally a method is adopted in which the socket is fitted into the cylindrical portion and the rear cylindrical portion is diameter-reduced (crimped) from the outside. In order to securely fix the socket, various means for preventing the socket from coming off have been developed, such as knurling the outer circumferential surface of the socket to increase the friction in the direction in which the socket is pulled out.
本考案はジヨイント内へのダストの入り込みを
防止するダクドカバーに上記ソケツトの抜け止め
機能をもたせることによりソケツト抜止め効果の
向上をはかることを目的とするものである。 The object of the present invention is to improve the effect of preventing the socket from coming off by providing the duct cover, which prevents dust from entering the joint, with the function of preventing the socket from coming off.
課題を解決するための手段
本考案は、ボールジヨイント、スイベルジヨイ
ント等のジヨイントにおいて、ソケツトに形成し
たダストカバー嵌着部に圧入されるダストカバー
の大径側端部内に上つぼまりの円錐状の円環形状
に鋼材等にて形成した圧入環を埋設し、該大径側
端部をソケツトのダストカバー嵌着部に圧入した
状態において、圧入環の内周側端縁下側角部が上
記ダストカバー嵌着部周面に弾接すると共に該圧
入環の外周側端縁上側角部がソケツトに嵌着した
一方のリンクの筒部内周面に弾接した構造となる
よう構成したことを特徴とするものである。Means for Solving the Problems The present invention provides a joint such as a ball joint or a swivel joint, in which a conical upper bud is inserted into the large-diameter end of the dust cover that is press-fitted into the dust cover fitting portion formed in the socket. A press-fit ring made of steel or the like is buried in an annular shape, and the large-diameter end is press-fitted into the dust cover fitting part of the socket. is in elastic contact with the circumferential surface of the dust cover fitting portion, and the upper corner of the outer circumferential edge of the press-fit ring is in elastic contact with the inner circumferential surface of the cylindrical portion of one of the links fitted in the socket. This is a characteristic feature.
作 用
上記により、ソケツトに対しダストカバーの大
径側端部が抜け出そうとすると、圧入環の内周側
端縁下側角部がソケツトのダストカバー嵌着部周
面により強く弾接して大径装端部の抜け出しを防
止し、且つソケツトが一方のリンクの筒部より抜
け出そうとすればする程、圧入環の内外周の端縁
角部はますます強くダストカバー嵌着部周面（ソ
ケツト側）と一方のリンクの筒部内周面に圧接
し、ソケツトの抜け出しに対する抗力が増大し、
ソケツトの抜け止め機能の大幅な向上をはかり得
る。As a result of the above, when the large-diameter end of the dust cover tries to come out of the socket, the lower corner of the inner peripheral edge of the press-fit ring comes into stronger elastic contact with the peripheral surface of the dust cover fitting part of the socket, causing a large To prevent the insertion end from coming out, and the more the socket tries to come out from the cylindrical part of one link, the edge corners of the inner and outer peripheries of the press-fit ring will become more and more strongly pressed against the dust cover fitting part periphery ( (socket side) and the inner peripheral surface of the cylindrical part of one link, increasing the resistance against the socket coming out.
The ability to prevent the socket from coming off can be greatly improved.
実施例
以下本考案の実施例を付図を参照して説明す
る。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
第１図において、１は先端にボール部１１をも
つたボールスタツド、２は該ボールスタツド１の
ボール部１１を嵌装抱持するベアリング、３は該
ベアリング２を嵌装固着するソケツトであり、ボ
ールスタツド１のボール部１１を嵌装抱持した合
成樹脂材よりなるベアリング２をソケツト３の底
部より圧入した後、該ソケツト３底部にエンドプ
レート４をカシメ固着することによりベアリング
２がボール部１１を全体的に適度の締付力にて抱
持した状態にて組付けられる。 In FIG. 1, 1 is a ball stud having a ball portion 11 at the tip, 2 is a bearing that fits and holds the ball portion 11 of the ball stud 1, and 3 is a socket that fits and secures the bearing 2. After the bearing 2 made of synthetic resin that fits and holds the ball part 11 of the ball stud 1 is press-fitted from the bottom of the socket 3, the end plate 4 is fixed to the bottom of the socket 3 by caulking, so that the bearing 2 is attached to the ball part 11. It can be assembled by holding the whole part with appropriate tightening force.
ソケツト３のボールスタツド揺動用の開口部３
１近傍の外周面にはダストカバー嵌着部３２が全
周にわたり連続して形成され、該ダストカバー嵌
着部３２にはダストカバー５の大径側端部５１が
嵌着される。 Opening 3 for swinging the ball stud in the socket 3
A dust cover fitting part 32 is formed continuously over the entire circumference on the outer circumferential surface near the dust cover 1, and the large diameter side end 51 of the dust cover 5 is fitted into the dust cover fitting part 32.
ダストカバー５は、大径側端部５１と小径側端
部５２とをもつたほぼ筒形状にゴム等の弾性材に
より形成され、大径側端部５１を上記ソケツト３
のダストカバー嵌着部３２に圧入嵌着させると共
に、小径側端部５２をボールスタツド１の軸部に
嵌装弾接させることにより、ソケツト３の開口部
３１を密閉し、外部よりほこりや水等のダストが
ベアリング２とボール部１１の摺動面に入り込む
ことがないようシールするものである。 The dust cover 5 is formed of an elastic material such as rubber into a substantially cylindrical shape having a large diameter end 51 and a small diameter end 52, and the large diameter end 51 is connected to the socket 3.
By press-fitting it into the dust cover fitting part 32 of the ball stud 1, and by fitting the small-diameter end 52 into elastic contact with the shaft part of the ball stud 1, the opening 31 of the socket 3 is sealed, and dust, water, etc. are kept out from the outside. This seals the dust from entering the sliding surfaces of the bearing 2 and the ball portion 11.
ダストカバー５の大径側端部５１内には鋼材等
よりなる圧入環５３が埋設され、該大径側端部５
１をソケツト３のダストカバー嵌着部３２に嵌装
するとき該圧入環５３はその内周側端縁角部がわ
ずかに拡径弾性変形しつつ圧入され、圧入完了状
態において、第２図に示すように圧入環５３の内
周側端縁角部５３ａがソケツト３のダストカバー
嵌着部３２の周面上に全周にわたり強く弾接し大
径側端部５１の抜け止めをはかるようになつてい
るが、本考案では上記圧入環５３の外周側端縁角
部５３ｂが大径側端部５１の外周面の極く近傍の
内側に位置するか或は該外周側端縁角部５３ｂが
大径側端部５１外周面にほぼ接した状態に構成
し、一方のリンク６に形成したソケツト嵌装用の
筒部６１にソケツト３を嵌装したとき第２図に示
すようにダストカバー５の大径側端部５１に埋設
した圧入環５３の外周側端縁角部５３ｂがわずか
に縮径弾性変形しつつ圧入され、筒部６１の内周
面に全周にわたり外周側端縁角部５３ｂが強く弾
接し、筒部６１の抜け出しを拘止するようにした
ものである。 A press-fit ring 53 made of steel or the like is embedded in the large diameter end 51 of the dust cover 5.
When the press-fit ring 53 is fitted into the dust cover fitting part 32 of the socket 3, the press-fit ring 53 is press-fitted while its inner peripheral edge corner is elastically deformed to expand its diameter slightly. As shown, the inner edge corner 53a of the press-fit ring 53 comes into strong elastic contact with the circumferential surface of the dust cover fitting part 32 of the socket 3 over the entire circumference, thereby preventing the large diameter end 51 from coming off. However, in the present invention, the outer circumferential edge corner portion 53b of the press-fit ring 53 is located inside very close to the outer circumferential surface of the large diameter end portion 51, or the outer circumferential edge corner portion 53b is When the socket 3 is fitted into the cylindrical part 61 for socket fitting formed on one link 6, the dust cover 5 is configured to be almost in contact with the outer circumferential surface of the large-diameter end 51, as shown in FIG. The outer circumferential edge corner 53b of the press-fit ring 53 embedded in the large diameter end 51 is press-fitted while being elastically deformed by a slight diameter reduction, and is press-fitted into the inner circumferential surface of the cylindrical portion 61 all around the outer circumferential edge corner 53b. The cylindrical portion 61 is strongly elastically contacted to prevent the cylindrical portion 61 from coming off.
即ち、ボールジヨイントは一般に一方のリンク
６に一体又は一体的に形成した筒部６１にソケツ
ト３を嵌着し、他方のリンク（図示省略）をボー
ルスタツド１の軸部に嵌装してナツト等により締
付固定した状態で使用されるものであり、上記ソ
ケツト３と筒部６１の固定は、通常筒部６１内に
ソケツト３を嵌装した後該筒部６１を外周側から
内側へ向けて縮径加工即ちカシメ締めして固定す
るのが普通であるが、それだけでは完全とは言え
ず、従来より例えばソケツトの外周面にローレツ
ト加工を施しておくことにより筒部６１をカシメ
締めした状態でフリクシヨンを増大させる等厄介
な手段が採られていた。 That is, in a ball joint, the socket 3 is generally fitted into a cylindrical part 61 formed integrally or integrally with one link 6, and the other link (not shown) is fitted into the shaft part of the ball stud 1 to tighten the nut. The socket 3 and the cylindrical part 61 are usually fixed by fitting the socket 3 into the cylindrical part 61 and then turning the cylindrical part 61 inward from the outer circumferential side. Normally, it is fixed by diameter reduction processing, that is, caulking, but this alone is not perfect, and conventionally, for example, by knurling the outer circumferential surface of the socket, the cylindrical portion 61 is caulked. Troublesome measures such as increasing the friction were taken.
本考案によれば、上記したようにダストカバー
５の大径側端部５１内に埋設された圧入環５３の
内周側端縁角部５３ａと外周側端縁角部５３ｂと
がソケツト３のダストカバー嵌着部３２の周面と
筒部６１の内周面とにそれぞれ強く弾接した状態
で圧入組付けられているので、筒部６１からソケ
ツト３を抜き出す方向に外力が作用すると内周側
及び外周側の各端縁角部５３ａ，５３ｂの圧接は
更に強固となり、筒部６１の通常の簡単なカシメ
締めと該圧入環の内外周側の端縁角部の圧接とで
ほぼ完全なるソケツトの抜け止めをはかることが
でき、ローレツト加工或はソケツト外周の複雑な
段付加工等の厄介な加工を必要とせず、加工工数
の簡易化、コストの大幅ダウンをはかり得る。 According to the present invention, the inner edge corner 53a and the outer edge corner 53b of the press-fit ring 53 embedded in the large diameter end 51 of the dust cover 5 are connected to the socket 3 as described above. Since the dust cover fitting part 32 and the inner circumferential surface of the cylindrical part 61 are press-fitted in a state in which they are in strong elastic contact with each other, when an external force is applied in the direction of pulling out the socket 3 from the cylindrical part 61, the inner periphery The pressure contact between the edge corners 53a and 53b on the side and outer circumferential sides becomes even stronger, and the pressure contact between the edge corners 53a and 53b on the inner and outer circumferential sides of the press-fit ring becomes almost complete with the normal simple caulking of the cylindrical portion 61 and the pressure contact of the edge corners on the inner and outer circumferential sides of the press-fit ring. It is possible to prevent the socket from coming off, and there is no need for troublesome machining such as knurling or complicated step machining on the outer periphery of the socket, and the number of machining steps can be simplified and costs can be significantly reduced.
尚本考案はボールジヨイントに限らず、スイベ
ルジヨント等にも適用することができる。 The present invention is not limited to ball joints, but can also be applied to swivel joints and the like.
考案の効果
以上のように本考案によれば、ダストカバーの
抜け止め用として該ダストカバーの大径側端部に
埋設させる鋼材等よりなる圧入環を、ソケツトと
それを嵌着うる一方のリンクの筒部との相対的抜
け止め用として使用した構造としたことにより、
新たな部品の追加や複雑な加工の追加等は一切な
しに、リンクの筒部に対するソケツトの嵌着強度
を著しく向上させることができるもので、構成の
簡略化、組付の簡易化及び大幅なコストダウンを
はかり得る点、実用上多大の効果をもたらし得る
ものである。Effects of the invention As described above, according to the invention, a press-fit ring made of steel or the like is embedded in the large-diameter end of the dust cover to prevent the dust cover from coming off, and the press-fit ring is inserted between the socket and one of the links into which it can be fitted. By using a structure that is used to prevent it from coming off relative to the cylindrical part,
It is possible to significantly improve the fitting strength of the socket to the cylindrical part of the link without adding any new parts or complicated machining, simplifying the configuration, simplifying assembly, and significantly increasing the strength of the socket. This method can reduce costs and bring about great practical effects.
第１図は本考案実施例の一判断面にて示す正面
図、第２図は第１図のＡ部拡大図である。
１……ボールスタツド、２……ベアリング、３
……ソケツト、３２……ダストカバー嵌着部、４
……エンドプレート、５……ダストカバー、５１
……大径側端部、５２……小経側端部、５３……
圧入環、６……一方のリンク、６１……筒部。
FIG. 1 is a front view showing one aspect of the embodiment of the present invention, and FIG. 2 is an enlarged view of section A in FIG. 1. 1...Ball stud, 2...Bearing, 3
...Socket, 32...Dust cover fitting part, 4
... End plate, 5 ... Dust cover, 51
...Large diameter end, 52...Small diameter end, 53...
Press-fit ring, 6... One link, 61... Cylindrical portion.
Claims (1)
るベアリングと、上部にスタツドが突出する開口
部をもち上記ベアリングを内部に嵌着するソケツ
トとからなるジヨイントであつて、該ソケツト外
周に一方のリンクの筒部を下向きに嵌装してカシ
メ固着し、該ソケツト外周の上端部に形成したダ
ストカバー嵌着部の周面の外側に上記一方のリン
クの筒部内周面が対向した構造とし、上記スタツ
ドに他方のリンクをねじ止め等により取付けてな
るものにおいて、ほぼ筒状をなし大径側端部を上
記ソケツト外周上端部に形成したダストカバー嵌
着部に圧入し小径側端部をスタツドに嵌装弾接さ
せてソケツト内へのダストの侵入を防止するゴム
等の弾性材よりなるダストカバーの上記大径側端
部内に、上つぼまりの円錐状の円環形状に鋼材等
にて形成した圧入環を埋設し、該大径側端部をソ
ケツトのダストカバー嵌着部に圧入した状態にお
いて、圧入環の内周側端縁下側角部が上記ダスト
カバー嵌着部周面に弾接すると共に該圧入環の外
周側端縁上側角部が前記一方のリンクの筒部内周
面に弾接した構造となるよう構成したことを特徴
とするジヨイントのダストカバー。 A joint consisting of a stud, a bearing that fits and holds one end of the stud, and a socket that has an opening at the top from which the stud projects and that fits the bearing inside. The cylindrical portion of the link is fitted downward and fixed by caulking, and the inner circumferential surface of the cylindrical portion of one of the links faces the outside of the circumferential surface of the dust cover fitting portion formed at the upper end of the outer periphery of the socket, In the case where the other link is attached to the above stud by screwing or the like, it has a substantially cylindrical shape, and the large diameter end is press-fitted into the dust cover fitting part formed at the upper end of the outer periphery of the socket, and the small diameter end is attached to the stud. The dust cover is made of an elastic material such as rubber and is fitted into the socket to prevent dust from entering into the socket.The dust cover is made of an elastic material such as rubber, and is formed of steel or the like in the shape of a conical ring at the top of the large-diameter end. When the press-fit ring is buried and the large-diameter end is press-fit into the dust cover fitting part of the socket, the lower corner of the inner circumferential edge of the press-fit ring elastically presses against the circumferential surface of the dust cover fitting part. A dust cover for a joint, characterized in that the upper corner of the outer peripheral edge of the press-fit ring is in elastic contact with the inner peripheral surface of the cylindrical portion of the one link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988042458U JPH0523854Y2 (en) | 1988-03-30 | 1988-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988042458U JPH0523854Y2 (en) | 1988-03-30 | 1988-03-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01144517U JPH01144517U (en) | 1989-10-04 |
| JPH0523854Y2 true JPH0523854Y2 (en) | 1993-06-17 |
Family
ID=31268866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988042458U Expired - Lifetime JPH0523854Y2 (en) | 1988-03-30 | 1988-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0523854Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5435241U (en) * | 1977-08-16 | 1979-03-08 |
-
1988
- 1988-03-30 JP JP1988042458U patent/JPH0523854Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5435241U (en) * | 1977-08-16 | 1979-03-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01144517U (en) | 1989-10-04 |
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