| 摘要 |
PURPOSE:To restrain a block from getting one-sided wear, by constituting width of the treading side in a tire rotation axial direction of the block to be smaller than that at the kicking-out side in the same direction, in case of a pneumatic tire having blocks separating in the circumferential direction in a tread end. CONSTITUTION:Width W7 at the treading side 7 of a tire rotation axial direction R of a block 5 forming an end part 2 of a tread part 1 is made smaller than width W8 at the kicking-out side 8 in the same tire rotation axial direction R, that is, W7/W8 should be set to 0.9-0.5. With this constitution, heel-and-toe wear in the block 5 is sharply reduced, thus tire's service life against wear is improvable. |
