| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire improved in the draining performance without impairing other performance such as the operation stability. SOLUTION: When dividing a tread part 1 into a central area 2 and both side areas 3a and 3b, the tread part 1 is provided with plural inclined grooves 7a and 7b having steep inclined groove parts 5a and 5b positioned in the central area 2 and extended while inclined at a relatively small angle to the tire circumferential direction 4 and gentle inclined groove parts 6a and 6b positioned in the side areas 3a and 3b and extended while inclined at a relatively large angle to the tire circumferential direction 4. The steep inclined groove parts 5a and 5b respectively has a groove edge part 31 forming a boundary with a land tread surface 33 over the nearly whole area, a main groove bottom part 32 forming a main groove bottom, and a pseudo land part 14 adjacent to at least one side edge 32a of both the side edges 32a and 32b of the main groove bottom part 32. The pseudo land part 14 has an inclined surface 13 having a height to be reduced from the groove edge part 31 toward the main groove bottom part 32. |
