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.:

US 8215939 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 10, 2012

Filed:

Jul. 16, 2009
Applicants:

Chikara Takagi, Hashima, JP;

Tatsumi Tanaka, Hashimi, JP;

Inventors:

Chikara Takagi, Hashima, JP;

Tatsumi Tanaka, Hashimi, JP;

Assignees:

Fuji Seiko Co., Ltd., Hashima-shi, JP;

Fuji Shoji Co., Ltd., Hashima-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 35/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a tire vulcanization forming mold which is circumferentially divided into a plurality of segment molds, a plurality of circumferential grooves are formed on each segment mold with spaces in a tire width direction; arc-shape mold blocks are detachably fitted respectively in the plurality of circumferential grooves; a plurality of slit grooves are formed on each mold block to open on side surfaces of the mold block; tread pattern forming blades are detachably inserted into these slit grooves in the tire width direction; and coming-off prevention engaging portions are provided on the slit grooves and the blades. Thus, the tire vulcanization forming mold is capable of enabling the blades to be replaced easily with respect to the segment molds.


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