| 摘要 |
PROBLEM TO BE SOLVED: To provide a vulcanizing machine capable of symmetrically expanding a bladder in the axial direction of a tire and capable of obtaining the tire high in quality. SOLUTION: A pair of guide rings 30, 40 guiding both ends of the bladder 52 inserted in the cavity of a tire T from the outer surfaces thereof are provided and formed so as to have the same diameter to be arranged on the concentric circle of the tire T. When the supply of a hot pressure medium into the bladder 52 is started, both guide rings 30, 40 are arranged at the positions approaching each other at the intermediate part in the axial direction of the tire T. When steam is supplied into the bladder 52 as the hot pressure medium, the bladder 52 is symmetrically expanded in the axial direction of the tire T in the state guided by the guide rings 30, 40. |
