| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire suppressing any heel-and-toe wear even when a projecting part in the tire circumferential direction is provided on an end of a kick side of a block. SOLUTION: A chamfered portion 7b is provided on a projecting part 7a provided on a kick side end of a block 7, the ground contact pressure of the projecting part 7a is reduced to suppress the heel-and-toe wear, which is considerably effective for reducing the noise during the traveling condition. In this case, the chamfered portion 7b is formed so that the chamfering length L1 from one end P1 in the tire circumferential direction to the other end P2 is larger on the center side in the width direction of the projecting part 7a than that on both sides in the width direction, and the ground contact pressure can be substantially uniform from the center side (the fore end side) in the width direction to be worn mostly at the projecting part 7a to both sides in the width direction, and the partial wear resistance can be enhanced without degrading the steering stability. COPYRIGHT: (C)2010,JPO&INPIT |
