| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire vulcanization method by bladderless vulcanization for improving productivity, while improving the inner surface shape of a pneumatic tire and heightening dimensional accuracy.SOLUTION: In a bladderless vulcanization method in which a green tire T is set in a metal mold 1, and a heating medium M is press-fitted to the inside of the green tire T and pressed to the outside in the tire radial direction, the heating medium M is press-fitted in the state where a rigidity strengthening ring 2 is arranged on the whole area on the inside surface of a region corresponding to a range from a tread part T1 to a bead part T3 of the green tire T.SELECTED DRAWING: Figure 1 |
