JPH0198369U

JPH0198369U -

Info

Publication number: JPH0198369U
Application number: JP19465487U
Authority: JP
Priority date: 1987-12-21
Filing date: 1987-12-21
Publication date: 1989-06-30

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例であるダストカバ
ーを示す断面図、第２図はその要部拡大断面図、
第３図はバルブ部材の開閉動作の説明図、第４図
はこの考案の一実施例であるダストカバーが組付
けられたボールジヨイントを示す断面図、第５図
は従来のダストカバーが組付けられたボールジヨ
イントを示す断面図、第６図はその要部拡大断面
図である。２……ボールスタツド、３……ボールジヨイン
トソケツト、６……ダストカバー、６ａ……スタ
ツド嵌合部、６ｂ……ソケツト嵌合部、６ｃ……
ブーツ部、７……大気導通孔、８……隆起部、９
……バルブ部材、１０……軸部、１１……係合部
、１２……蓋材、１２ａ……包囲片、Ｐ……大気
導通路。 Fig. 1 is a sectional view showing a dust cover which is an embodiment of this invention, Fig. 2 is an enlarged sectional view of its main parts,
Fig. 3 is an explanatory diagram of the opening/closing operation of the valve member, Fig. 4 is a sectional view showing a ball joint with a dust cover assembled as an embodiment of this invention, and Fig. 5 is a diagram showing a conventional dust cover assembled. A sectional view showing the attached ball joint, and FIG. 6 is an enlarged sectional view of the main part thereof. 2... Ball stud, 3... Ball joint socket, 6... Dust cover, 6a... Stud fitting part, 6b... Socket fitting part, 6c...
Boot part, 7... Atmospheric conduction hole, 8... Protuberance, 9
. . . Valve member, 10 . . . Shaft portion, 11 . . . Engaging portion, 12 .

Claims

[Claims for Utility Model Registration] One end has a stud fitting part that fits into a ball stud, the other end has a socket fitting part which fits into a ball joint socket, and a substantially cylindrical boot part in the center. In the dust cover having a dust cover main body having a valve member attached to a boot portion thereof, an atmosphere conduction hole is formed in the boot portion and a region around the atmosphere conduction hole is raised outward to form a raised portion; a shaft portion slidably arranged to penetrate the valve member through the atmosphere conduction hole; an engaging portion provided at an inner end of the shaft portion and removable from a peripheral area of the atmosphere conduction hole on the inner surface of the boot portion; a cover member is provided on the outer end of the shaft portion and is formed with an enveloping piece that surrounds the outer circumferential area of the raised portion, and is provided in the atmosphere communication hole so as to be freely openable and closable, and when the boot portion is under positive pressure, the valve member is 1. A dust cover, wherein the dust cover is pressed to form an atmospheric conduction path between the atmospheric conduction hole, the inner surface of the lid member, and the outer surface of the raised portion.