JPS62174115U

JPS62174115U -

Info

Publication number: JPS62174115U
Application number: JP6356386U
Authority: JP
Priority date: 1986-04-25
Filing date: 1986-04-25
Publication date: 1987-11-05

Description

[Brief explanation of the drawing]

第１図〜第３図は本考案の１実施例のボールジ
ヨイントに関するものであり、第１図はその一部
断面で示す全体正面図、第２図はシール部材の断
面図、第３図は第１図の要部拡大断面図である。
第４図は従来のボールジヨイントの一部断面で示
す正面図である。１……軸受部、２……ボールスタツド、３……
リテーナ、４……シール部材、５……ダストカバ
ー、４１……基部、４２……第１リツプ部、４３
……第１シール部、４４……第２リツプ部、４５
……第２シール部。 1 to 3 relate to a ball joint according to an embodiment of the present invention, in which FIG. 1 is an overall front view partially shown in cross section, FIG. 2 is a sectional view of a sealing member, and FIG. is an enlarged cross-sectional view of the main part of FIG. 1;
FIG. 4 is a partially sectional front view of a conventional ball joint. 1...Bearing part, 2...Ball stud, 3...
Retainer, 4... Seal member, 5... Dust cover, 41... Base, 42... First lip part, 43
...First seal part, 44...Second lip part, 45
...Second seal part.

Claims

[Claims for Utility Model Registration] (1) Comprised of a head having a spherical surface and a shaft extending from the head, the head rotates into the bearing,
A ball stud that is pivotably supported; a cylindrical retainer circumferentially fixed around the shaft portion of the ball stud; a cylindrical seal member held by the retainer; and the ball. a substantially cylindrical resin dust cover disposed around the stud, one end fixed to the bearing and the other end locked to the sealing member, the sealing member having a flange shape at one end; A first seal portion having a protruding cylindrical hard base, at least one rubber ring-shaped first lip formed on the inner peripheral surface of the base and abutting the retainer, and a first seal portion on the outer peripheral surface of the base. a second seal portion formed therein to seal the other end portion of the dust cover, and the other end portion of the dust cover has an opening having an inner diameter smaller than that of the flange-shaped end of the base portion that abuts the second seal portion. The flange-shaped end of the base located inside the dust cover locks the other end of the dust cover, and part of the stress from the ball stud is absorbed by elastic deformation of the seal member. A ball joint characterized in that the first seal portion and the second seal portion are sealed. (2) The ball joint according to claim 1, wherein the sealing member is insert-molded from a rubber material using the base as an insert. (3) The ball joint according to claim 1, wherein the sealing member has a ring-shaped second lip extending toward the opposite side from the dust cover on its outer periphery. (4) The ball joint according to claim 1, wherein the base of the sealing member is made of fiber-reinforced resin.