| 摘要 |
PURPOSE: To prevent the block in the traveling on a paved road and prevent the lawn in the traveling on the lawn from being damaged, by setting the shape of the block for forming a block pattern having a negative ratio of 30-60% and the number of blocks in a grounded surface to each specific value. CONSTITUTION: A block 1 is formed on a tread periphery which has a block pattern which is divided by a circumferential groove 2 and a lateral groove 3 and has a negative ratio of 30-60%, and when the width set along the circumference of the tread is set (a), and the groove depth for dividing the block is set as (d), a/d is set over 2.0. Further, when the tire is applied with the regular load and internal pressure, the number of blocks in the grounded surface is set to 30-90, the dimension of the crown R is set at least 1500mm, and the dimension of the shoulder R of a round shoulder is set to 90-150mm. Accordingly, the damage of the lawn due to the traveling on the lawn is prevented, and also in the traveling on a paved road, the occurrence of the tread chip is prevented, and the work and the transportation in a golf yard can be carried out in a favourable manner. |
