| 摘要 |
Provided are a manufacturing method and a manufacturing apparatus for a pneumatic tire, with which a tread portion can be formed with good dimensional accuracy, while minimizing thermal degradation of the base tire. A rigid inner mold (2) made from metal is abutted against the tire inner surface in an area corresponding to the tread portion (TR) of the base tire (BT), and in this state, the base tire (BT) is supported from the inner side by the tough, rigid inner mold (2). In this state, unvulcanized rubber (R) is injected into the cavity (11) of a tread mold (10) that covers the base tire (BT) outside peripheral surface corresponding to the tread portion (TR), and the unvulcanized rubber (R) is vulcanized to form the tread portion (TR) on the outside peripheral surface of the base tire (BT), as well as to unify the tread portion (TR) with the outside peripheral surface. |
