| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire, capable of improving grip performance on a snow-covered road surface, while simultaneously improving abrasion resistance and durability on a dry road surface. SOLUTION: Sipes 32 and 42 formed on the circumferential center side of a land part 26 are composed in a crank form having crank parts 36 and 46. Sipes 52 formed on both circumferential sides of the land part 26 are composed in a three-dimensional form having irregularity parts 56. The sipes 32 and 42 in the crank form are deformed to achieve favorable edge effect. The sipes 52 in the three-dimensional form restrict deformation on both sides of the land part 26. Generation of uneven abrasion in the land part 26 can be restricted. Breakage at both end parts of the land part 26 can also be prevented. COPYRIGHT: (C)2006,JPO&NCIPI
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