| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of improving on-ice performance, on-snow performance and wet performance. SOLUTION: In this pneumatic tire, the rotational direction is designated; main grooves 2 and 2 extending in the peripheral direction, an inclined groove 3 inclining outside in the width direction toward the opposite side of the rotational direction R and a crossing groove 4 inclining to the opposite side of the rotational direction R toward the outside in the width direction, are arranged in a tread part 1; a land part 10 extending in the peripheral direction is partitioned between the main grooves 2 and 2; a land part 20 is partitioned between the main groove 2 and the inclined groove 3; a land part 30 is partitioned outside in the width direction of the inclined groove 3; a plurality of sipes 12, 22 and 32 extending in the width direction are arranged in these land parts 10, 20 and 30; the inclined groove 3 is arranged so as to cross with the crossing groove 4; an inside end part 4b in the width direction of the crossing groove 4 is terminated in the land part 10 or the land part 20; the crossing groove 4 terminated in the land part 10 and the land part 20 is alternately arranged in the peripheral direction; an outside end part 3a in the width direction of the inclined groove 3 is terminated in the land part 30; and a groove width is gradually increased toward an inside end part 3b from the outside in the width direction. COPYRIGHT: (C)2010,JPO&INPIT |
