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US 2014/0190608 A1Published application
Tire mold, tire, and tire manufacturing method
AssigneeBridgestone Corporation
InventorsHiroyuki Katsuno, Ryoichi Watabe, Masahiro Katayama
Life of this patent
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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.
Claims3
A tire mold comprising:
- a tread molding surface to mold a tread surface of a tire,
- at least a portion of the tread molding surface being formed by projecting spherical projection material having a sphericity of 15 μm or less and causing the spherical projection material to collide.
A method for manufacturing a tire, comprising the steps of:
- 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 formed in step a).
Dependencies are inferred from the claim text.