| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a pneumatic tire which suppresses a variation in a curled state of both end parts of carcass ply winding a bead core. SOLUTION: Bending crease is attached to one end part 23A and the other end part 23B by moving a rotary press blade along the end part longitudinal direction while pressing the winding inner surface sides of the one end part 23A and the other end part 23B of the carcass ply 13 before molding to wind a pair of bead cores into the groove with the rotary press blade. In that case, the moving direction J of the rotary press blade at the one end part 23A and the moving direction K of the rotary press blade at the other end part 23B are reversed to each other. In the result, the moving direction of the rotary press blade at the one end part 23A and the other end part 23B can be the twisted-cord direction relative to the cord C arranged in the carcass ply 13 before molding. COPYRIGHT: (C)2008,JPO&INPIT
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