| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a green tire by single stage molding which enables the end part of a carcass ply to be inserted and arranged into the inner periphery side of a belt. SOLUTION: In this manufacturing method, a carcass band 13 obtained by forming a carcass material in a cylindrical shape, is molded on a molding drum 1, then a green case 16 is molded by arranging a bead core 14 and a bead filler 15 in the outer peripheral side of the carcass band 13, and the end part 17 of the carcass band 13 is replicated around the bead core 14 in such a state that the center part of the carcass band 13 is distorted by bulging following the bulged diameter distortion of a molding bladder 3, on the molding drum 1. Further, a belt and a tread rubber are pasted in the crown region of the bulged distortion part of the carcass band 13, then a belt and a tread rubber are pasted in a crown region of the bulged distortion part of the carcass band 13 and thus the green tire is molded. In this process, prior to the pasting of the belt to the crown region, the end part 17 of the carcass band 13 is replicated and distorted under the support of force by a rigid support member 4 provided inside the molding bladder 3, and the replicated end is positioned to the crown center from a position corresponding to the side edge of the belt in the crown region. COPYRIGHT: (C)2006,JPO&NCIPI
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