| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a tire vulcanization mold that can improve durability of a blade for forming a siping.SOLUTION: There is provided a tire vulcanization mold 10 that includes a tread molding ring 11 which is constituted of a plurality of segments 11a and becomes annular and in the inside of which a molding part 17 is disposed. In a side view, respective segments 11a can move inside and outside along a radial direction X that connects an intermediate position P1 and a tire rotation axis P2, a molding part 17 of each segment 11a includes a tread molding part 18 that molds a tread S of a tread part 2, and a blade 19 for forming a siping. In each segment 11a, at a cross section parallel to a tire equator C that passes through the blade 19, an end blade 23 positioned at the utmost end side at least in a tire circumferential direction is tilted more on an end side in tire circumferential direction from a normal line Y1 to a tread molding part 18 formed on an intersection point P3 of the end blade 23 and the tread molding part 18, and is parallel to a radial direction X that passes through the intersection point P3 or is tilted more on an intermediate position P1 side from the parallel position.</p> |
