Patent ID: 8303870
Filing Date: 2012-11-06
Classification: B29D

Abstract:
1. A tire forming method of vulcanization forming by arranging a side rubber layer of a first color in an outer side of a carcass ply of a side wall portion, arranging a different color rubber layer of a second color in adjacent to an outer side of the side rubber layer, and bringing an outer surface of a tire in which a cover rubber layer of the first color is arranged in adjacent to an outer side of the different color rubber layer into contact with a tire forming mold, wherein the tire forming mold is provided with a rubber inflow portion in a contact surface with the tire, and a cross sectional shape of the rubber inflow portion is constructed by a neck portion extending from an inflow port, and a head portion enlarged from the neck portion, and a protrusion portion is formed in the outer surface of the tire by inflowing the different color rubber layer and the cover rubber layer into the rubber inflow portion.