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:
Feb. 10, 2004
Filed:
Mar. 06, 2002
Yutaka Okamoto, Nagoya, JP;
Satoshi Imai, Nagoya, JP;
Nobutaka Hiramatsu, Nagoya, JP;
Hideo Ishikawa, Nagoya, JP;
Takayuki Shibayama, Nagoya, JP;
Mikio Suzuki, Nagoya, JP;
Mitsuharu Sahashi, Nagoya, JP;
Daido Metal Company Ltd., Nagoya, JP;
Abstract
There is provided a method of working a plain bearing and a working apparatus of the plain bearing, which make it easy to perform working by forming a plurality of inclined surfaces of different angles in portions on both sides of the inner peripheral surface of the bearing alloy metal of the plain bearing in the axial direction thereof. In the working method and apparatus, a working holder is provided which has a groove extending on the inner peripheral surface in the peripheral direction and portions on both sides of the groove in the transverse direction formed in step-like shape, a half bearing is housed in the working holder and both ends of the half bearing in the peripheral direction are pressed by use of pressing means Then, the half bearing undergoes plastic deformation so as to be fitted into the groove and both sides of the half bearing in the axial direction thereof come into abutment with the edges of the step-like portions and are deformed in a polygonal line form. In this state, both ends of the half bearing in the axial direction thereof are cut along one cylindrical surface by use of a broach As a result, two inclined surfaces of different angles are continuously formed in the portions of both sides of the bearing alloy metal of the half bearing in the axial direction thereof.