| 摘要 |
PROBLEM TO BE SOLVED: To exfoliate a bladder by surely introducing pressurized gas between a tire and the bladder after vulcanization molding. SOLUTION: A pressurized gas introducing path 40 having an opening 41 of one end side abutting on the bladder 20 is formed at an underside bead ring 14 of a tire vulcanization molding device 1. A pressurized gas supply fixture 52 for supplying the pressurized gas is constituted there so as to approach and separate from the opening 42 at the other end side to be moved by a moving means 54. A contact displacement member 61 is mounted to the pressurized gas supply fixture 52 to be inserted in the pressurized gas introducing path 40. When supplying the pressurized gas, the pressurized gas supply fixture 52 is moved to a position where the supply port 52A communicates with the pressurized gas introducing path 40. The tip of the contact displacement member 61 is brought in contact with the bladder 20, thereby to be displaced to the inner side to get the bladder 20 separated from the opening 41 where the pressurized gas is introduced between a tire 5' after vulcanization and the bladder 20 to exfoliate the bladder 20. COPYRIGHT: (C)2008,JPO&INPIT |
