PROCESS FOR PRODUCING A PNEUMATIC TIRE

摘要

A green tire (G) is formed by stacking a tire component such as a carcass layer (13) on a film (12) which is made of a thermoplastic resin or a thermoplastic elastomer composition and which is disposed on the entire outer circumferential surface of a cylindrical rigid inner die (1) formed of split parts (2) . The green tire (G) is placed in a vulcanizing mold together with the rigid inner die (1) and then heated to a given temperature. The film (12) is pressurized from the inner circumferential side and inflated, and the green tire (G) is vulcanized. Thus, unvulcanized rubber of the tire components is pressed toward the inner circumferential surface of the vulcanizing mold and flows in circumferential directions. As a result, volume unevenness of the tire components is corrected. The film (12) which functions as a bladder is tightly bonded to the inner circumferential surface of the tire to become an inner layer of the tire.