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.

Date of Patent:
Dec. 16, 2008

Filed:

Dec. 05, 2005
Applicants:

Shusuke Yamamoto, Shizuoka-ken, JP;

Toshiyuki Iwai, Chiba-ken, JP;

Hirofumi Noro, Wako, JP;

Tomoo Oka, Tokyo, JP;

Shinichi Kuwahara, Tokyo, JP;

Inventors:

Shusuke Yamamoto, Shizuoka-ken, JP;

Toshiyuki Iwai, Chiba-ken, JP;

Hirofumi Noro, Wako, JP;

Tomoo Oka, Tokyo, JP;

Shinichi Kuwahara, Tokyo, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A pin connection structure is used in a floating type brake disc assembly. The assembly is made up of a hub, and an annular disc which is concentrically disposed around the hub with a clearance therebetween. The hub and the disc have plural sets of semicircular connecting dents opening toward the clearance to thereby form respective inserting holes. A hollow pin is inserted into each of the inserting holes with a washer fitted on that one end of the hollow pin which is subsequently caulked radially outward for fixing the washer in position. The hollow pin is made of a metal having a surface-treated layer, and the caulked end of the hollow pin is formed into a convex shape in at least part of the end portion.


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