| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a turn-up bladder capable of suppressing air from entering and improving durability.SOLUTION: A turn-up bladder 1 used for molding a tire is equipped with a body ply 2 forming a frame of the bladder from one end portion 11 to the other end portion 12; and a reinforcing ply 3 formed so as to be narrower than the body ply 2 and pasted to the body ply 2. The body ply 2 and the reinforcing ply 3 respectively include cords C2 and C3 extending while inclining in a circumferential direction. A cord angleθ3 of the reinforcing ply 3 to the circumferential direction is within a range of 50-90 degrees, and same as or smaller than a cord angleθ2 of the body ply 2 to the circumferential direction.</p> |
