| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a pneumatic tire wherein reaction force of an upward habit-forming part at both side end parts of a carcass material to a bead core lock of a bead setter is decreased. SOLUTION: Previously upward habit-forming parts at two or more positions are applied to both bead core rewinding side end parts of a material for radial carcass ply wherein a steel cord is coated by unvulcanized rubber, knotching is applied to coated rubber part of the habit-forming end part, it is above cylindrically jointed to a forming drum, the bead core component is positioned at the habit-forming end part, and fixed by locking from inside. After deforming in a toroid state by being inflatedly projected under the fixed state, the habit- forming part is bonded by enfolding around the bead core component to form the unvulcanized tire.
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