The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 1998
Filed:
Sep. 15, 1997
Kouichi Fujita, Hamamatsu, JP;
Masahiro Yamada, Iwata-gun, JP;
Keiichiro Suzuki, Hamana-gun, JP;
Masao Takayama, Hamamatsu, JP;
Masazumi Suzuki, Iwata-gun, JP;
Kabushiki Kaisha Somic Ishikawa, Tokyo, JP;
Abstract
A ball joint includes a bearing seat crimped in place within a housing. A ball head of a ball stud slides in the bearing seat. A cylindrical crimpable portion of the bearing seat is inserted through a cylindrical portion of the housing. The bearing seat is fixed to the housing with two stopper portions. One of the stopper portions is formed by crimping the cylindrical crimpable portion against one of the ends of the housing. A dust cover is pushed between the ball stud and the other stopper portion. The stopper portion is enlarged outward using ultrasonic vibration. An inner side face of the cylindrical crimpable portion inclines outward at an angle ranging from 3.degree. to 20.degree. with respect to an axial direction of the cylindrical crimpable portion. A chamfered portion and rotation-stop portions, shaped like flower petals, are formed at one end of the housing.