| 摘要 |
An object of the present invention is to provide a tire possessing improved partial wear resistance by optimizing shapes and dimensions of a block land portion and its position and arrangement. The tire has plural block land portion arrays 5 formed by a large number of block land portions 4 defined on a tread portion 1. Between two block land portion arrays 5 located adjacent to each other across the circumferential groove 2, the block land portions 4 constituting the block land portion arrays 5 are arranged on the tread portion 1 so as to be positionally displaced from each other in the circumferential direction of the tire; a groove 6 between the block land portions adjacent to each other in the width direction of the tire extends obliquely with respect to the width and circumferential directions of the tire. At this time, the distance d2 between the block land portions adjacent to each other in the width direction of the tire is shorter than the distance d1 between the block land portions adjacent to each other in the circumferential direction of the tire. Further, a length d3 of the block land portion 4 in the circumferential direction of the tire falls within a range of 1.0 to 2.5% of a circumferential length of the tire.
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