Patent ID: 7364635

Claim:
A manufacturing method of a pneumatic tire in which a portion having a different color from a main body rubber is formed in a side wall portion, comprising: a step of forming a band-like rubber member having (i) a different color rubber layer having a different color from a main body rubber, (ii) side rubber layers having the same color as the main body rubber and being arranged on inner and outer sides of the different color rubber layer, respectively, with respect to a tire peripheral direction, each side rubber layer being smaller than the different color rubber in the tire peripheral direction, and (iii) a thin rubber layer having the same color as the main body rubber formed on a top side of said different color rubber layer, which top side is an exposed side of the side wall portion, wherein the step of forming the band-like rubber member comprises extrusion-molding the different color rubber layer and the side rubber layers while bonding the side rubber layers to the inner and outer sides of the different color rubber layer; and attaching the thin rubber layer to the top side of the different color rubber layer bonded together with the side rubber layers; a step of arranging said band-like rubber member on an outer peripheral surface of a cylindrical forming drum or attaching said band-like rubber member to a carcass ply on a forming drum; and a step of spirally winding a rubber ribbon multiple rounds with an overlap along a tire peripheral direction so as to attach a portion formed by the rubber ribbon to each side of said band-like rubber member with respect to the tire peripheral direction on the side wall portion.