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:
Dec. 10, 2019
Filed:
Mar. 03, 2015
Applicant:
Sumitomo Rubber Industries, Ltd., Kobe-shi, JP;
Inventor:
Kei Kohara, Kobe, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Kobe-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29D 30/12 (2006.01); B29C 33/56 (2006.01); B29D 30/06 (2006.01); B29C 33/62 (2006.01);
U.S. Cl.
CPC ...
B29D 30/0661 (2013.01); B29C 33/56 (2013.01); B29D 30/12 (2013.01); B29C 33/62 (2013.01);
Abstract
In an inner mold method, a pull-out force of extracting inner mold segments from a vulcanized tire is reduced. A rigid inner moldis provided with an annular inner mold bodyhaving a tire molding surface S. A rigid coreis put into a vulcanization mold B for each green tire T formed on the tire molding surface S, whereby the green tire T is vulcanization-molded between the vulcanization mold B and the inner mold body. The inner mold bodycomprises a plurality of inner mold segmentsdivided in the circumferential direction. A coating layerhaving rubber release property is formed on the tire molding surface S.