| 摘要 |
PURPOSE:To improve the performance on ice and snow by setting a distance between sipe sets along the circumference of a tire and a distance between the circumferential end of a block and each sipe close to it larger than a tire circumferential distance between sipes in each set. CONSTITUTION:A tread pattern consisting of blocks 1 is formed in a tire tread surface 10. A plurality of sipes 2 (22, 22) are disposed along a tire width direction F-F' in the surface of the block 1. In this case, in a sectional area of the block 1 for a tire circumferential direction E-E', a tire circumferential distance between one set of sipes 22, 22 and another set of sipes 22, 22 is set larger than a tire circumferential distance (d) between the sipes 22, 22 in each set. A tire circumferential distance between the circumferential end of the block 1 and each sipe 22 closest to this circumferential end is set larger than the tire circumferential distance (d) between the sipes in each set. |
