| 摘要 |
PROBLEM TO BE SOLVED: To provide bladder for tire vulcanization that can uniformly expand a green tire to suppress insufficient vulcanization while improving durability.SOLUTION: A bladder 1 for tire vulcanization, which is expanded by a vulcanizing medium G supplied to an inner surface side to press an inner surface of a green tire 50 to a mold surface 64 of a tire vulcanizing mold 60, comprises: a first pressing part 13 which has a plurality of recesses 20 in an inner surface of the bladder 1 and presses a shoulder part 53 of the green tire 50; and second pressing parts 11, 12 where an inner surface of the bladder 1 is formed into a smooth surface substantially along the inner surface of the green tire 50 and which presses a tread part 51 and a sidewall part 52 of the green tire 50.SELECTED DRAWING: Figure 1 |
