| 摘要 |
PROBLEM TO BE SOLVED: To make high maintaining possible of durability of a block, correspond to force in various directions and make improving possible of not only forward/ backward traction but also side slip corresponding ability, so that clogging of a fine groove can be also reduced. SOLUTION: In this tread pattern for a tire, a land part 3 partitioned by a main groove 2 is formed in large quantity with a space apart in a tire axial direction A and tire peripheral direction B, and is formed in two polygonal blocks 5 partitioned by a sub-groove 4, the two blocks 5 are connected by a rack part 6 in the bottom of the sub-groove 4, a fine groove 7 opened to the sub-groove 4 from the middle of the block is formed in each block 5 and a direction arranging the main groove 2, sub-groove 4 and two blocks 5 is tilted relating to the tire axial direction A. |
