JPH0610193Y2 - Ball joint - Google Patents
Ball jointInfo
- Publication number
- JPH0610193Y2 JPH0610193Y2 JP1989047999U JP4799989U JPH0610193Y2 JP H0610193 Y2 JPH0610193 Y2 JP H0610193Y2 JP 1989047999 U JP1989047999 U JP 1989047999U JP 4799989 U JP4799989 U JP 4799989U JP H0610193 Y2 JPH0610193 Y2 JP H0610193Y2
- Authority
- JP
- Japan
- Prior art keywords
- ball joint
- retainer
- ball
- dust cover
- flange portion
- 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
Landscapes
- Sealing Devices (AREA)
- Diaphragms And Bellows (AREA)
- Pivots And Pivotal Connections (AREA)
Description
【考案の詳細な説明】 ＝考案の目的＝ 〔産業上の利用分野〕 本考案は、例えば自動車懸架装置及び操舵装置等に使用
されるボールジョイントに係り、特にボールスタッドの
柄に嵌装されたリテーナ外周にダストカバー小開口を装
着するボールジョイントに関する。Detailed Description of the Invention = Purpose of the Invention = [Field of Industrial Application] The present invention relates to a ball joint used in, for example, an automobile suspension system and a steering system, and in particular, it is fitted to a handle of a ball stud. The present invention relates to a ball joint in which a dust cover small opening is mounted on the outer circumference of a retainer.
従来、ダストカバーが長期の使用で胴膜部の反発力を喪
失し、それによってダストカバーが潰れ、ボールスタッ
ドの柄に装着したダストカバーの小開口部が連接棒の球
頭部側端面から離れて隙間を生ずることがある。そこで
ダストカバー小開口部の移動を防止するため、第１図左
半部に示す如く断面Ｌ字形の環状のリテーナ１１１をボ
ールスタッド１０２の柄１０３に嵌装し、小開口部１０
９下面全体をリテーナ１１１のフランジ部１１３で支持
していた。Conventionally, the dust cover loses the repulsive force of the body membrane after long-term use, which crushes the dust cover, and the small opening of the dust cover attached to the handle of the ball stud is separated from the end surface of the connecting rod on the ball head side. May cause a gap. Therefore, in order to prevent the small opening of the dust cover from moving, an annular retainer 111 having an L-shaped cross section is fitted to the handle 103 of the ball stud 102 as shown in the left half of FIG.
9 The entire lower surface was supported by the flange portion 113 of the retainer 111.
このようなボールジョイントとしては、実公昭５６−１
２４１８号．実公昭６１−６３７９号．実開昭５７−１
４１２２５号．実開昭６１−１２２４２１号などがあ
る。An example of such a ball joint is Jitsuho Sho 56-1.
2418. Jikho Sho 61-6379. Actual Kai 57-1
41225. There is, for example, Shoukai 61-122421.
上述の如きボールジョイントにおいて、ダストカバー１
０８はボールジョイント１０１使用中にボールスタッド
１０２に嵌装したリテーナ１１１及び連接棒１２０に対
して相対的に回転する。従って、ダストカバー１０８の
小開口部１０９下面とリテーナ１１１のフランジ部１１
３最先端１３２とが接触しながら揺動回転するため、第
５図の(イ)に示す如くダストカバー１０８に亀裂１３０
が発生する。そして更にボールジョイントが揺動回転を
続けることにより、第５図の(ロ)に示す如く亀裂１３０
がダストカバー１０８の外部に達し、ボールジョイント
１０１内のグリースの外部への放出、及び砂塵．水等の
ボールジョイント１０１内部への侵入という問題が生ず
る。In the ball joint as described above, the dust cover 1
Reference numeral 08 rotates relative to the retainer 111 and the connecting rod 120 fitted on the ball stud 102 while the ball joint 101 is in use. Therefore, the lower surface of the small opening 109 of the dust cover 108 and the flange portion 11 of the retainer 111.
3 As the tip end 132 contacts and swings and rotates, the dust cover 108 is cracked 130 as shown in FIG.
Occurs. Then, as the ball joint continues to swing and rotate, cracks 130 are generated as shown in (b) of FIG.
Reach the outside of the dust cover 108, the grease in the ball joint 101 is released to the outside, and the dust. There is a problem that water or the like enters the ball joint 101.
そこで第６図に示す如く、リテーナ２１１のフランジ部
２１３先端外周部を球頭部２０４側に傾斜させ、フラン
ジ部２１３最先端２３１とダストカバー２０８との接触
を弱め、ダストカバー２０８の亀裂１３０を抑えるもの
がある。Therefore, as shown in FIG. 6, the outer peripheral portion of the tip end of the flange portion 213 of the retainer 211 is inclined toward the ball head 204 side to weaken the contact between the tip end 231 of the flange portion 213 and the dust cover 208, and to prevent the crack 130 of the dust cover 208. There is something to suppress.
しかしこのようなリテーナ２１１では軸方向の寸法Ｌが
長くなり、ボールジョイント２０１揺動中（特に最大揺
動状態）においてリテーナ２１１のフランジ部２１３最
先端２３１がダストカバー２０８．ハウジング２０６等
に干渉してしまうという問題がある。However, in such a retainer 211, the dimension L in the axial direction becomes long, and the tip end 231 of the flange portion 213 of the retainer 211 is in contact with the dust cover 208. There is a problem that it interferes with the housing 206 and the like.
従って本考案はこの様な問題点を解決し、長期に渡って
使用可能なボールジョイントを提供することを目的とす
る。Therefore, an object of the present invention is to solve such problems and to provide a ball joint that can be used for a long period of time.
＝考案の構成＝ 〔課題を解決するための手段〕 リテーナのフランジ部先端外周部に、連接棒側に突出す
る断面略半円形状の環状外突部を形成する。= Configuration of the Invention = [Means for Solving the Problems] An annular outer protrusion having a substantially semicircular cross section that protrudes toward the connecting rod is formed on the outer periphery of the flange tip of the retainer.
以下本考案の実施例を第１図右半部及び第２図に基づい
て説明する。An embodiment of the present invention will be described below with reference to the right half of FIG. 1 and FIG.
１はボールジョイントで、ボールスタッド２の一端球頭
部４がベアリング５を介してハウジング６内に摺動回転
自在に軸支されると共に、他端の柄３はハウジング６開
口７から突出している。ボールスタッド２は、柄３のテ
ーパ部２２が連接棒２０にナット２１で締め付け固定さ
れる。連接棒２０は、例えばナックルアーム等である。Reference numeral 1 is a ball joint, and a ball head 4 of one end of a ball stud 2 is slidably and rotatably supported in a housing 6 via a bearing 5, and a handle 3 at the other end projects from an opening 7 of the housing 6. . In the ball stud 2, the tapered portion 22 of the handle 3 is fastened and fixed to the connecting rod 20 with the nut 21. The connecting rod 20 is, for example, a knuckle arm or the like.
ボールスタッド２の柄３の中間部２３には、耐食素材、
例えばステンレス製で環状のリテーナ１１が圧入嵌装さ
れている。このリテーナ１１は、ボールスタッド２の柄
３に圧入嵌装される円筒状の円筒部１２とその一端から
外径方向に延出するフランジ部１３とより成り、そのフ
ランジ部１３先端外周部には連接棒２０側に突出する断
面略半円形状の環状外突部１４が形成されている。この
リテーナ１１のフランジ部１３はボールスタッド２の球
頭部４側に位置している。In the intermediate portion 23 of the handle 3 of the ball stud 2, a corrosion resistant material,
For example, an annular retainer 11 made of stainless steel is press-fitted. The retainer 11 includes a cylindrical cylindrical portion 12 press-fitted into the handle 3 of the ball stud 2 and a flange portion 13 extending from one end thereof in the outer diameter direction. An annular outer projecting portion 14 having a substantially semicircular cross section that projects toward the connecting rod 20 is formed. The flange portion 13 of the retainer 11 is located on the ball head 4 side of the ball stud 2.
８はダストカバーで、ラバーまたは柔軟なプラスチック
等により略円筒釣鐘状に形成されている。ダストカバー
８の一端小開口部９には、例えばポリアミド．ポリアセ
タール等の硬化樹脂製の環状の嵌合環１９が埋設される
ことにより補強され、リテーナ１１の円筒部１２の外周
に適度な緊迫力をもたせ、ボールスタッド２の軸線まわ
りに摺動回転自在に装着されている。Reference numeral 8 denotes a dust cover, which is formed of rubber or flexible plastic in a substantially cylindrical bell shape. In the small opening 9 at one end of the dust cover 8, for example, polyamide. The ring-shaped fitting ring 19 made of a cured resin such as polyacetal is reinforced by being embedded, and an appropriate tightening force is applied to the outer periphery of the cylindrical portion 12 of the retainer 11 so that the ball stud 2 can slide and rotate around the axis. It is installed.
また、ダストカバー８の他端大開口部１０は、ハウジン
グ６の開口７付近の外周に形成した環状溝１６に嵌着さ
れ、更に大開口部１０の外周には、ハウジング６からの
離脱防止のためのサークリップ１７が嵌着されている。
そして、ハウジング６の開口７付近の内周には、ボール
スタッド２の抜け防止のための抜け止めリング１８がか
しめ固着されている。Further, the other end large opening 10 of the dust cover 8 is fitted into an annular groove 16 formed on the outer periphery of the housing 6 near the opening 7, and the outer periphery of the large opening 10 further prevents separation from the housing 6. A circlip 17 for fitting is fitted.
A retaining ring 18 for preventing the ball stud 2 from coming off is caulked and fixed to the inner periphery of the housing 6 near the opening 7.
次に、上述の如くボールジョイントの組み立て方法及び
シール構造について説明する。Next, the method for assembling the ball joint and the seal structure as described above will be described.
まず、ハウジング６内にベアリング５で囲繞されたボー
ルスタッド２の球頭部４を挿入し、抜け止めリング１８
をハウジング６の開口７付近の内周にかしめ固着してボ
ールジョイント１を組み立てる。First, the ball head 4 of the ball stud 2 surrounded by the bearing 5 is inserted into the housing 6, and the retaining ring 18
Is caulked and fixed to the inner periphery of the housing 6 near the opening 7 to assemble the ball joint 1.
続いて、ボールスタッド２の柄３の中間部２３（第３図
の(イ)）に、フランジ部１３が球頭部４側に位置するよ
うにダストカバー８の一端小開口部９内周に装着したリ
テーナ１１を嵌装する（第３図の(ロ)）と共に、他端大
開口部１０をハウジング６の環状溝１６に嵌着し、更に
大開口部１０の外周にサークリップ１７を装着する。Then, in the intermediate portion 23 ((a) in FIG. 3) of the handle 3 of the ball stud 2, one end of the dust cover 8 is provided with the inner periphery of the dust cover 8 so that the flange portion 13 is located on the ball head 4 side. While fitting the mounted retainer 11 ((B) in FIG. 3), the other end large opening 10 is fitted in the annular groove 16 of the housing 6, and the circlip 17 is further mounted on the outer circumference of the large opening 10. To do.
その後、連接棒２０をボールスタッド２の柄３のテーパ
部２２に挿入しナット２１で締め付けることにより、リ
テーナ１１のフランジ部１３上面と連接棒２０の下面と
の間で押圧すると共に、リテーナ１１を所定の位置まで
圧入する（第３図の(ハ)）。After that, the connecting rod 20 is inserted into the tapered portion 22 of the handle 3 of the ball stud 2 and tightened with the nut 21 to press between the upper surface of the flange portion 13 of the retainer 11 and the lower surface of the connecting rod 20, and at the same time, to retain the retainer 11. Press into the specified position ((c) in Fig. 3).
従って、リテーナ１１のフランジ部１３先端外周部に、
連接棒２０側に突出する断面略半円形状の環状外突部１
４を形成したため、リテーナ１１のフランジ部１３最先
端がダストカバー８と接触して、ダストカバー８に亀裂
を生ずるということがない。Therefore, on the outer peripheral portion of the tip of the flange portion 13 of the retainer 11,
An annular outer protrusion 1 having a substantially semicircular cross section that protrudes toward the connecting rod 20 side
4 is formed, the tip of the flange portion 13 of the retainer 11 does not come into contact with the dust cover 8 and the dust cover 8 is not cracked.
更に環状外突部１４はダストカバー８の小開口部９を部
分押圧するため、ダストカバー８のシール性を向上させ
る。Further, since the annular outer protrusion 14 partially presses the small opening 9 of the dust cover 8, the sealing property of the dust cover 8 is improved.
上記実施例において、環状外突部１４はリテーナ１１の
フランジ部１３先端外周部に形成したが、更にシール性
向上のために第４図に示す如く、環状外突部１４より軸
心側に連接棒２０側に突出する断面略半円形状の環状内
突部２４を一環以上形成してシールしてもよい。In the above embodiment, the annular outer protrusion 14 is formed on the outer peripheral portion of the tip of the flange portion 13 of the retainer 11. However, in order to further improve the sealing property, as shown in FIG. 4, the annular outer protrusion 14 is connected to the axial center side. It is also possible to form and seal the annular inner protrusion 24 having a substantially semicircular cross-section protruding toward the rod 20 in a part or more.
＝効果＝ 以上のように本考案によれば、リテーナのフランジ部先
端外周部に、連接棒側に突出する断面略半円形状の環状
外突部を形成するため、リテーナのフランジ部最先端が
ダストカバーと接触して、ダストカバーに亀裂を生ずる
ということがなく、長期に渡って使用できる。= Effects = As described above, according to the present invention, since the annular outer protrusion having a substantially semicircular cross section that projects toward the connecting rod is formed on the outer peripheral portion of the flange end of the retainer, the leading edge of the flange of the retainer is The dust cover does not come into contact with the dust cover to crack and can be used for a long period of time.
更に環状外突部１４はダストカバーの小開口部を部分押
圧するため、ダストカバーのシール性を向上させボール
ジョイント内のグリースの外部への放出、及び砂塵．水
等のボールジョイント内部への侵入を防止する。Further, since the annular outer protrusion 14 partially presses the small opening of the dust cover, the sealing performance of the dust cover is improved, the grease in the ball joint is released to the outside, and the dust. Prevents water from entering the ball joint.
第１図は左半部が従来のボールジョイントを表し、右半
部が本考案の実施例によるボールジョイントを表す断面
平面図である。第２図は第１図の本考案主要部の拡大図
である。第３図はリテーナ嵌装方法を、同図の(イ)乃至
同図の(ハ)によって順次表す第１図のＴ部拡大図であ
る。第４図は本考案の他の実施例を表す部分断面正面図
である。第５図は従来のボールジョイントによって、亀
裂を生ずる状態を同図の(イ)、同図の(ロ)によって順次表
す部分断面図である。第６図は従来のボールジョイント
の他の実施例を表す部分断面正面図である。 （記号の説明） １……ボールジョイント。２……ボールスタッド。 ３……柄。４……球頭部。 ８……ダストカバー。９……小開口部。 １１……リテーナ。１２……円筒部。 １３……フランジ部。１４……環状外突部。 ２０……連接棒。FIG. 1 is a cross-sectional plan view showing a ball joint according to an embodiment of the present invention and a left half thereof shows a conventional ball joint. FIG. 2 is an enlarged view of the main part of the present invention shown in FIG. FIG. 3 is an enlarged view of the T portion of FIG. 1 sequentially showing the retainer fitting method by (a) to (c) of FIG. FIG. 4 is a partial sectional front view showing another embodiment of the present invention. FIG. 5 is a partial cross-sectional view sequentially showing a state in which a crack is generated by a conventional ball joint by (a) in the figure and (b) in the figure. FIG. 6 is a partial sectional front view showing another embodiment of the conventional ball joint. (Explanation of symbols) 1 ... Ball joint. 2 ... Ball stud. 3 ... pattern. 4 ... ball head. 8 …… Dust cover. 9: Small opening. 11 ... Retainer. 12 …… Cylinder part. 13 …… Flange part. 14 ... Annular outer protrusion. 20 ... Connecting rod.
Claims (2)
１のボールスタッド２の柄３に、円筒状の円筒部１２と
該円筒部１２一端に形勢されたフランジ部１３より成る
リテーナ１１が、前記フランジ部１３がボールスタッド
２の球頭部４側に位置するように嵌装されると共に、ダ
ストカバー８の一端小開口部９が前記リテーナ１１の外
周に装着されるボールジョイントにおいて、前記リテー
ナ１１のフランジ部１３先端外周部に、連接棒２０側の
突出する断面略半円形状の環状外突部１４を形成したこ
とを特徴とするボールジョイント。1. A retainer 11 comprising a cylindrical cylindrical portion 12 and a flange portion 13 formed at one end of the cylindrical portion 12 on a handle 3 of a ball stud 2 of a ball joint 1 connected to a connecting rod 20. In the ball joint in which the flange portion 13 is fitted so as to be located on the ball head 4 side of the ball stud 2, and the one end small opening portion 9 of the dust cover 8 is attached to the outer periphery of the retainer 11, the retainer 11 A ball joint characterized in that an annular outer protruding portion 14 having a substantially semicircular cross section that protrudes toward the connecting rod 20 is formed on the outer peripheral portion of the front end of the flange portion 13.
環状外突部１４より軸心側に、少なくとも一環以上で連
接棒２０側に突出する断面略半円形状の環状外突部２４
を形成した請求項１記載のボールジョイント。2. An annular outer protrusion 24 having a substantially semicircular cross section that protrudes toward the connecting rod 20 side at least in part from the annular outer protrusion 14 formed on the outer peripheral portion of the front end of the flange portion 13 at least in part.
The ball joint according to claim 1, wherein the ball joint is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989047999U JPH0610193Y2 (en) | 1989-04-24 | 1989-04-24 | Ball joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989047999U JPH0610193Y2 (en) | 1989-04-24 | 1989-04-24 | Ball joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02138219U JPH02138219U (en) | 1990-11-19 |
| JPH0610193Y2 true JPH0610193Y2 (en) | 1994-03-16 |
Family
ID=31564426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989047999U Expired - Lifetime JPH0610193Y2 (en) | 1989-04-24 | 1989-04-24 | Ball joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610193Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5215156B2 (en) * | 2008-12-12 | 2013-06-19 | 東洋ゴム工業株式会社 | Liquid-filled vibration isolator |
| JP2012097855A (en) * | 2010-11-04 | 2012-05-24 | Nok Corp | Dust cover for ball joint |
| JP6119965B2 (en) | 2012-12-19 | 2017-04-26 | Nok株式会社 | Dust cover for ball joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS481067U (en) * | 1971-05-31 | 1973-01-09 |
-
1989
- 1989-04-24 JP JP1989047999U patent/JPH0610193Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02138219U (en) | 1990-11-19 |
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