| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire, in which a plurality of different rubber compositions are arranged in a width direction of a tread part, and which can suppress a crack occurring from a boundary surface between different rubber materials. SOLUTION: A pneumatic tire 1 is configured such that a plurality of different rubber compositions 9a and 9b are arranged in a width direction of a tread part 2, and a boundary surface 9 of these different rubber compositions 9a and 9b is exposed to a wall surface of a main groove 8 extending in a tire circumferential direction. The tire 1 is formed in a number of narrow grooves 10 which are arrayed such that they intersect with an exposed part 9z of the boundary surface 9 and are spaced from each other in the extending direction of the main groove 8 at a predetermined interval t. COPYRIGHT: (C)2010,JPO&INPIT |
