VULCANIZING MOLD OF TIRE FOR VEHICLE

摘要

PURPOSE: A tire vulcanizing mold for a vehicle is provided to radiate heat from a tread part conveniently, and to lengthen a life span of a tire by forming an air vent in a recessed part of a block without trimming. CONSTITUTION: A vulcanizing mold for a vehicle tire is composed of a tread mold(1); upper and lower side wall molds; a groove forming protrusion(2) and a block forming part(3) placed in the tread mold; an air vent(4) formed in the block forming part; a nozzle(5) installed in the air vent; an upper discharge port(51) formed in the upper part of the nozzle; and a lower discharge port(52) formed in the lower part of the block forming part. A recessed part(63) is formed in a block(62), and a protrusion(64) is formed in the recessed part. The protrusion is surrounded with the recessed part without trimming, and the recessed part is used as kerf in the block. Heat from the tread part is radiated conveniently with forming the protrusion in the recessed part, and the life span of the tire is lengthened.