| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold for vulcanizing and molding a pneumatic tire capable of preventing the clogging of a vent hole to enhance the productivity of tire vulcanization, reducing maintenance, and reducing the number of defective product tires, and also to provide the pneumatic tire. SOLUTION: A large number of split pieces 2 are arranged to the portion for molding a tire tread surface (tread part) of the mold, and a large number of vent holes 4, which vent the air between an unvulcanized tire (green tire) and the mold 1 or the gas or the like generated at the time of vulcanization, are formed to the side surfaces of the pieces 2 and the mold 3 for molding the shoulders and sides of a tire W. A cylindrical vent piece 5 comprising heat- resistant non-adhesive materials 5a and 5b of two-stage constitution can be locked with the vent holes 4. |
