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:
Jul. 16, 2019
Filed:
Sep. 16, 2014
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Naoki Sugiyama, Kobe, JP;
Yuichi Nakano, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, Hyogo, JP;
Abstract
Provided are: vent pieces, which can easily be added later and with which the occurrence of spew can be suppressed without restriction in the locations where the vent pieces can be orderly arranged in vulcanized molding of a pneumatic tire; and a manufacturing method for pneumatic tire in which vulcanization molding of a raw cover is performed by using a vulcanization mold in which said vent piece has been embedded. A vent piece, which is used by being embedded in a prepared hole for air vent provided on the inner surface of a pneumatic tire vulcanization mold, is a cylinder without a hole in the axial direction and is configured to perform air vent from a gap formed between the vent piece and the side surface of the prepared hole. A vent piece has a saw cut extending in the axial direction formed on the side surface of the cylinder.