METHOD FOR MANUFACTURING PNEUMATIC RADIAL TIRE

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a pneumatic radial tire further improved in uniformity. SOLUTION: A first cylindrical molded object S1, wherein both ends of an unvulcanized carcass layer 5 are folded back to the periphery of an annular bead core 7, is molded on a first molding drum 1. The deflection quantity of the annular bead core 7 with respect to the round centering around the center axis of the first molded object S1 is measured over one round. The position becoming the center axis of the bead core 7 is judged on the basis of the deflection quantity. When a second molded object S2 is transferred toward the outer periphery of the first molded object S1, the center axis of the bead core 7 is allowed to coincide with the holding center axis O'' of a transfer device 12. The first molded object S1 is inflated into a troidal shape by a shape-up drum to be bonded to the inner periphery of the second molded object S2 under pressure to mold a green tire G.