| 摘要 |
PURPOSE:To provide an excellent ice or snow performance by preventing the falling of the block part to be demarcated by the siping. CONSTITUTION:In a pneumatic tire, block rows are formed on the tread surface part by a plurality of grooves 1 in the circumferential direction and grooves 2 in the width direction, and a plurality of sipings 4, 6, 7 which are located on the tire in the circumferential direction keeping the space from each other and extended in the width direction of the tire are provided on each block of at least one block row. The space of the sipings 4, 6 to be open at least to one of the block side ends is large at the center part in the circumferential direction, and small at the end part in the circumferential direction in each block 3. |
