| 摘要 |
PROBLEM TO BE SOLVED: To reduce residual stresses to improve the stability in straight-ahead travel without substantially affecting the block shape, the pattern shape by generating torque around a normal in each block when a tire is compressed to be deformed. SOLUTION: Plural sipes, in each of which one end is open to a wall face 10A or 10B or the like of a block B1, and the other end is broken in the block B1, are arranged on the block surface S1 of a pneumatic tire having plural blocks B1. The sipes 9A, 9B, etc., are inclined and extended from the block surface S1 toward the sipe bottoms, and the directions of the slopes of the respective sipes 9A, 9B, etc., arranged in one block B1, which are inclined toward the block bottom, must be the same in the circumferential direction around a normal N standing up within the block surface S1. |
