JPH0730780B2 - Dust cover seal structure for ball joints - Google Patents
Dust cover seal structure for ball jointsInfo
- Publication number
- JPH0730780B2 JPH0730780B2 JP62302970A JP30297087A JPH0730780B2 JP H0730780 B2 JPH0730780 B2 JP H0730780B2 JP 62302970 A JP62302970 A JP 62302970A JP 30297087 A JP30297087 A JP 30297087A JP H0730780 B2 JPH0730780 B2 JP H0730780B2
- Authority
- JP
- Japan
- Prior art keywords
- dust cover
- ball joint
- connecting rod
- end surface
- seal structure
- 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 title claims description 27
- 230000007797 corrosion Effects 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0666—Sealing means between the socket and the inner member shaft
- F16C11/0671—Sealing means between the socket and the inner member shaft allowing operative relative movement of joint parts due to flexing of the sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0628—Construction or details of the socket member with linings
- F16C11/0633—Construction or details of the socket member with linings the linings being made of plastics
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、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用ダストカバーのシール構造に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal structure for a ball joint dust cover used in, for example, an automobile suspension system and a steering system.
従来の技術 ボールジョイント接手部の防塵，防水を目的としてダス
トカバーが装着されているボールジョイントとしては、
実開昭56−122860号などがある。Conventional technology As a ball joint equipped with a dust cover for the purpose of dustproofing and waterproofing the ball joint joint,
There are actual development Sho 56-122860.
発明が解決しようとする問題点 上記の如きボールジョイント用ダストカバーのシール構
造において、ボールジョイントを連接棒、例えばナック
ルアームと連結した場合、ナックルアームのボールジョ
イント側端面とダストカバーの外側端面との接面に水が
浸入し、ボールジョイント側端面に錆が発生した場合、
ナックルアームとボールジョイント間の激しい運動によ
り、ダストカバーのシール部がその錆のため摩耗し、シ
ール効果を失うという問題がある。Problems to be Solved by the Invention In the seal structure for a dust cover for a ball joint as described above, when the ball joint is connected to a connecting rod, for example, a knuckle arm, an end face of the knuckle arm on the ball joint side and an outer end face of the dust cover are formed. If water enters the contact surface and rust occurs on the end surface of the ball joint,
Due to the violent movement between the knuckle arm and the ball joint, there is a problem that the sealing portion of the dust cover is worn due to the rust and loses the sealing effect.
問題点を解決するための手段 ダストカバーシール部の外側端面に対向して、連接棒の
ボールジョイント側に耐食性素材により環状のシール性
維持部を形成する。Means for Solving the Problems An annular sealability maintaining portion is formed of a corrosion resistant material on the ball joint side of the connecting rod so as to face the outer end surface of the dust cover sealing portion.
作用 連接棒のシール性維持部を耐食性素材で形成したため、
連接棒のボールジョイント側端面とダストカバーの外側
端面との接面に水が浸入しても、ボールジョイント側端
面に錆が発生しない。Since the seal maintaining part of the connecting rod is made of corrosion resistant material,
Even if water enters the contact surface between the ball joint side end surface of the connecting rod and the dust cover outer end surface, rust does not occur on the ball joint side end surface.
実 施 例 以下本発明の実施例を第１図に基づいて説明する。Example An example of the present invention will be described below with reference to 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を介してソケット６開口７から突出し
ている。ボールスタッド２の柄３のテーパ部19は連接棒
17にナット16で締付固定されている。連接棒17は、例え
ばナックルアーム等である。Reference numeral 1 denotes a ball joint in which a ball head 4 at one end of a ball stud 2 projects from an opening 7 of a socket 6 via a bearing 5. Tapered portion 19 of handle 3 of ball stud 2 is a connecting rod
It is fixed to 17 with nut 16. The connecting rod 17 is, for example, a knuckle arm or the like.
８はダストカバーで、ラバーまたは柔軟なプラスチック
など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９はボールスタッド２の柄３外周に装
着され、かつダストカバー８シール部11の外側端面12は
連接棒17のボールジョイント側端面４に密着的に当接さ
れ、また他端大開口10はソケット６の外周に装着する。
21はリップである。A dust cover 8 is formed of rubber or flexible plastic in a substantially cylindrical bell shape. One end small opening 9 of the dust cover 8 is attached to the outer periphery of the handle 3 of the ball stud 2, and the outer end surface 12 of the dust cover 8 seal portion 11 is in close contact with the ball joint side end surface 4 of the connecting rod 17, and The other end large opening 10 is mounted on the outer circumference of the socket 6.
21 is a lip.
15はサークリップで、ダストカバー８大開口部18の外周
に装着されて大開口部18をソケット６に締め付けてい
る。A circlip 15 is attached to the outer circumference of the large opening 18 of the dust cover 8 and fastens the large opening 18 to the socket 6.
上述のボールジョイント用ダストカバーのシール構造に
おいて、ダストカバー８シール部11の外側端面12に対向
した、連接棒17のシール性維持部13は環状で耐食性素
材、例えばステンレスにより形成され、予め連接棒17の
端面凹部20に圧入装着される。In the above-described ball joint dust cover sealing structure, the sealability maintaining portion 13 of the connecting rod 17 facing the outer end surface 12 of the dust cover 8 sealing portion 11 is formed of a ring-shaped corrosion resistant material such as stainless steel, and the connecting rod is previously formed. It is press-fitted and mounted in the end face recessed portion 20 of 17.
次に上記構造の組立てについて説明する。まずソケット
６内に、ベアリング５で囲繞されたボールスタッド２球
頭部４を挿入する。Next, assembly of the above structure will be described. First, the ball stud 2 and the ball head 4 surrounded by the bearing 5 are inserted into the socket 6.
つぎに、ダストカバー８の一端小開口９をボールスタッ
ド２の柄３外周に装着し、また他端大開口10をソケット
６外周に装着する。Next, one end small opening 9 of the dust cover 8 is mounted on the outer circumference of the handle 3 of the ball stud 2, and the other large opening 10 is mounted on the outer circumference of the socket 6.
その後、連接棒17をボールスタッド２の柄３のテーパ部
19に挿入し、ナット22で締付け固定すると伴に、ダスト
カバー８シール部11の外側端面12が、連接棒17のボール
ジョイント側端面14に密着的に当接される。After that, connect the connecting rod 17 to the taper part of the handle 3 of the ball stud 2.
The outer end surface 12 of the dust cover 8 seal portion 11 is brought into close contact with the ball joint side end surface 14 of the connecting rod 17 while being inserted into 19 and fixed with a nut 22.
前述の如く連接棒17のシール性維持部13をステンレスに
より形成した結果、連接棒17のボールジョイント側端面
14に錆が発生することはなく、連接棒17のボールジョイ
ント側端面14とダストカバー８シール部の外側端面12と
のシール効果の低下を防止する。As a result of forming the sealability maintaining portion 13 of the connecting rod 17 from stainless steel as described above, the end surface of the connecting rod 17 on the ball joint side is
Rust does not occur on 14 and prevents deterioration of the sealing effect between the end surface 14 of the connecting rod 17 on the ball joint side and the outer end surface 12 of the sealing portion of the dust cover 8.
なお上記実施例において、連接棒17のシール性維持部13
はステンレスにより形成したが、他の耐食性素材で形成
しても良い。In the above embodiment, the sealability maintaining portion 13 of the connecting rod 17 is used.
Is made of stainless steel, but may be made of other corrosion resistant material.
効果 以上のように本発明によれば、ダストカバー８シール部
11の外側端面12に対向して、連接棒17のボールジョイン
ト側端面14に耐食性素材により環状のシール性維持部13
を形成するため、ダストカバー８シール部11の外側端面
12と連接棒17のボールジョイント側端面14との接面に水
が浸入しても、ボールジョイント側端面14に錆が発生し
ないので、ダストカバー８シール部11の外側端面12が、
ボールジョイント側端面14に発生する錆のため摩耗して
シール性を失うようなことはなく、長期間に渡ってシー
ル性を維持することができる。Effects As described above, according to the present invention, the dust cover 8 seal portion
An annular sealability maintaining portion 13 made of a corrosion-resistant material is formed on the end surface 14 of the connecting rod 17 on the ball joint side so as to face the outer end surface 12 of the connecting rod 17.
The outer end surface of the dust cover 8 seal portion 11 to form the
Even if water enters the contact surface between the 12 and the end surface 14 of the connecting rod 17 on the ball joint side, rust does not occur on the end surface 14 of the ball joint side. Therefore, the outer end surface 12 of the dust cover 8 seal portion 11 is
Rust generated on the end surface 14 on the ball joint side does not cause wear and loss of sealing performance, and the sealing performance can be maintained for a long period of time.
第１図は、本発明の実施例を表わすもので、ダストカバ
ーを装着したボールジョイントのシール構造を表わす断
面平面図である。 （記号の説明） １……ボールジョイント。 ２……ボールスタッド。３……柄。 ６……ソケット。８……ダストカバー。 ９……小開口。10……大開口。 11……シール部。12……外側端面。 13……シール性維持部。 14……ボールジョイント側端面。 17……連接棒。FIG. 1 shows an embodiment of the present invention and is a sectional plan view showing a seal structure of a ball joint equipped with a dust cover. (Explanation of symbols) 1 ... Ball joint. 2 ... Ball stud. 3 ... pattern. 6 ... Socket. 8 …… Dust cover. 9: Small opening. 10 ... Large opening. 11 …… Seal part. 12 …… Outer end face. 13: Sealing property maintenance part. 14 …… Ball joint end face. 17 ... connecting rod.
Claims (1)
のダストカバー８の一端小開口９をボールスタッド２の
柄３外周に装着し、かつダストカバー８シール部11の外
側端面12を前記連接棒17のボールジョイント側端面14に
密着的に当接し、また他端大開口10をソケット６外周に
装着したボールジョイント用ダストカバーのシール構造
において、前記ダストカバー８シール部11の外側端面12
に対向して、前記連接棒17のボールジョイント側端面14
に耐食性素材により環状のシール性維持部13を形成する
ことを特徴とするボールジョイント用ダストカバーのシ
ール構造。1. A ball joint 1 connected to a connecting rod 17.
The small opening 9 of the dust cover 8 is attached to the outer periphery of the handle 3 of the ball stud 2, and the outer end face 12 of the dust cover 8 seal portion 11 is brought into close contact with the ball joint side end face 14 of the connecting rod 17. Further, in the seal structure of the ball joint dust cover in which the other end large opening 10 is attached to the outer periphery of the socket 6, the outer end surface 12 of the dust cover 8 seal portion 11
Facing the ball joint side end surface 14 of the connecting rod 17.
A seal structure for a dust cover for a ball joint, characterized in that an annular sealability maintaining portion (13) is formed of a corrosion resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62302970A JPH0730780B2 (en) | 1987-11-30 | 1987-11-30 | Dust cover seal structure for ball joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62302970A JPH0730780B2 (en) | 1987-11-30 | 1987-11-30 | Dust cover seal structure for ball joints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01145415A JPH01145415A (en) | 1989-06-07 |
| JPH0730780B2 true JPH0730780B2 (en) | 1995-04-10 |
Family
ID=17915354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62302970A Expired - Lifetime JPH0730780B2 (en) | 1987-11-30 | 1987-11-30 | Dust cover seal structure for ball joints |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730780B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5321907B2 (en) * | 2009-09-08 | 2013-10-23 | Ｎｏｋ株式会社 | Dust cover for ball joint |
| JP2013228037A (en) * | 2012-04-25 | 2013-11-07 | Jtekt Corp | Ball joint |
-
1987
- 1987-11-30 JP JP62302970A patent/JPH0730780B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01145415A (en) | 1989-06-07 |
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