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. 15, 2008
Filed:
Apr. 07, 2004
Yoshiaki Hirata, Kodaira, JP;
Akio Oobayashi, Kodaira, JP;
Keigo Kikuchi, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A hollow-cylindrical portion () inserted in a hollow-cylindrical portion () of one rim section () is provided on the other rim section (). To form a split rim (), part (head portion) of the inner hollow-cylindrical portion () overlaid on the outer hollow-cylindrical portion () is radially outwardly expanded by being elastically deformed by a tapered surface () of a piston () such that the inner and outer hollow-cylindrical portions () are in close contact with each other. As a result, relative positions of the rim sections () are strictly defined, and this enables high assembling accuracy, particularly coaxiality with a high level, to be achieved. A fine fitted to the split rim () can be inspected with high accuracy.