| 摘要 |
PURPOSE:To provide a tread pattern which achieves low pattern noise particularly among the tire noises and excellent drainage performance. CONSTITUTION:In a pneumatic tire whose tread is divided into multiple land parts 5-9 ranging along the tread circumferential direction by multiple main grooves 1-4 and tread edges T extended along N the tread circumferential line and arranged, along the tread width direction at certain intervals, sipes 10, 11 extended along the directions, which cross the main grooves, 1-4 diagonally from both of the treads edges T until they meet together in mountain- shapes at the central area of the tread, are arranged at approximately equal intervals along the circumferential direction of the tread while sipes 10, 11 intermittently have groove-shaped thickened parts 12 with extended opening width on the tread surface. |
