| 摘要 |
PURPOSE:To suppress noise by suppressing the gas pillar resonance sound generated in a main groove, without deteriorating other performances such as drain performance and abrasion resistance, by forming the surface of a land part to the shape for suppressing the vibration of the groove wall of the main groove. CONSTITUTION:As for a pneumatic tire, a tread part has a land part 5 which is divided by a plurality of main grooves 4 extending along the outer periphery of the tire, and in the vicinity of both the side edges 7a and 7b of the land part 5, small grooves 8a and 8b extending along the main grooves 4 are arranged, and the land part 5 is divided to a center part 9 and both the side parts 10 and 11. |
