Patent ID: 9649890
Date: 2017-05-16
CPC Classifications: B29D,B60C

Claim:
1. A method for manufacturing a tire having a sidewall portion whose outer surface is provided with a projecting marking, comprising vulcanization molding the raw tire by the use of a mold having a sidewall molding surface for molding the outer surface of the sidewall portion of the tire, wherein the mold comprises a stencil plate for molding the projecting marking, mounting the stencil plate in a recess formed in the sidewall molding surface, wherein the stencil plate is made of a metallic plate having a thickness t providing the stencil plate in the front surface thereof with a concave marking part for molding the projecting marking, formed by press working upon the metallic plate whereby a swollen part corresponding to the concave marking part is formed on the back side of the stencil plate, forming an entire peripheral edge portion of the stencil plate as a turnback, the turnback extending obliquely from the front surface toward the outside of the stencil plate and toward the back side of the stencil plate so that the rear edge of the turnback and the rear surface of the swollen part are positioned substantially in a same plane, and the difference between the backward extension H contacting a rear edge of the turnback with a side wall of the recess, the side wall extending from the sidewall molding surface toward the bottom of the recess, and forming a continuous groove between the rear edge and the side wall at a certain depth from the sidewall molding surface toward the bottom of the recess around the stencil plate by the side wall of the recess and the turnback.