Title:
BALL JOINT
Document Type and Number:
Japanese Patent JPS5620822
Kind Code:
A
Abstract:
PURPOSE:To prevent a reduction of a frictional force by a method wherein permeating holes are provided on a ball socket and an end lid in a ball joint having a ball seat volumetrically expanding by moisture. CONSTITUTION:A plurality of permeating holes 9 are provided on a peripheral wall of a ball socket 5 while one permeating hole 10 is provided at a center of an end lid 6 and the ball socket 5 is constituted so as to be contacted with open air through these permeating holes 9, 10. Accordingly, a ball seat 3 absorbs moisture in the open air or splashed water through these permeating holes 9, 10 as a time is elapsed and a volumetric expansion is caused therein which increases a frictional force between a ball 2 and the ball seat 3 gradually. Thus, a reduction of the frictional force in a ball joint with elapse of time may be prevented.
Inventors:
URASAKI YOSHIO
Application Number:
JP9672179A
Publication Date:
February 26, 1981
Filing Date:
July 31, 1979
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
F16C11/06; F16C11/08; (IPC1-7): F16C11/06
Domestic Patent References:
| JPS50156660U | 1975-12-25 | |||
| JPS5316056A | 1978-02-14 | |||
| JPS4428333Y1 | 1969-11-25 | |||
| JP45011045A | ||||
| JPS4821733U | 1973-03-12 |
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