US2015021813A1PendingUtilityA1

Tire mold, tire, and tire manufacturing method

Assignee: BRIDGESTONE CORPPriority: Dec 28, 2011Filed: Oct 9, 2014Published: Jan 22, 2015
Est. expiryDec 28, 2031(~5.4 yrs left)· nominal 20-yr term from priority
B29D 2030/0612B29L 2030/00B29C 33/424B29D 2030/0616B60C 11/00B29D 30/0662B29D 30/0606
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Claims

Abstract

The tread surface of a tire according to the present invention is molded with a tire mold having a tread molding surface, and at least a portion of the tread molding surface is formed by projecting spherical projection material having a predetermined sphericity and causing the spherical projection material to collide.

Claims

exact text as granted — not AI-modified
1 . A method for manufacturing a tire, comprising:
 a) forming at least a portion of a tread molding surface of a tire mold by projecting spherical projection material having a sphericity of 15 μm or less and causing the spherical projection material to collide; and   b) molding a tire with the tire mold that includes the tread molding surface thus formed.

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