| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve improvement of both performance on ice and snow and partial wear resistance. <P>SOLUTION: On a central portion in the tire width direction W of each large block 19, a circumferential sipe 23 extended in the tire circumferential direction C and dividing the large block 19 into a pair of small blocks 19 is formed. Width direction sipes 25, 27 extended in the tire width direction W are formed on the small blocks 19. Each of the circumferential sipes 23 has an appropriate number of sipe parallel parts 23a extended in the tire circumferential direction C in parallel and an appropriate number of sipe inclination parts 23b inclined to the tire circumferential direction C. In each of the circumferential direction sipes 23, the depth of the sipe inclination part 23b is set smaller than that of the sipe parallel part 23a. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
