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US 2012/0256349 A1Published application
Tire mold, manufacturing method of pneumatic tire, and pneumatic tire
AssigneeToyo Tire & Rubber Co., Ltd.
InventorMasaaki OHARA
Life of this patent
Estimating the term…
Abstract
A tire mold has a tire molding surface. The tire molding surface is pressed against an outer surface of an uncured tire. A vent hole is provided in the tire molding surface. A surface of an outer edge region surrounding an opening of the vent hole is formed by a smooth surface. The smooth surface is smoother than a surface in a peripheral region of the outer edge region.
Claims11
A tire mold comprising:
- a tire molding surface which is pressed against an outer surface of an uncured tire;
- and
- a vent hole which is provided in the tire molding surface,
- wherein a surface of an outer edge region which surrounds an opening of the vent hole is formed by a smooth surface which is smoother than a surface in a peripheral region of the outer edge region.
1 more element
A tire mold comprising:
- a tire molding surface which is pressed against an outer surface of an uncured tire;
- and
- a vent hole which is provided in the tire molding surface,
- wherein a tapered surface is formed in an opening of the vent hole, and the tapered surface is formed by a smooth surface which is smoother than a surface in a peripheral region which surrounds the tapered surface.
1 more element
Dependencies are inferred from the claim text.