| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire capable of suppressing a change in the rigidity of a land part even when the input direction of a force from a road surface is changed. SOLUTION: In the tire 1, one or more sipes 3 are formed in every block 23-25, which are a plurality of land parts. In one wall surface 3a of both opposed wall surfaces constituting each sipe 3, one or more protrusions 31, in which the amount of protrusion relative to this one wall surface 3a is increased in the one-way sipe depth direction, are formed, and an edge 31c is formed between an inclined surface 31a and a peripheral surface 31b constituting this protrusion 31. This edge 31c is a circular arc protruded in the sipe depth direction. COPYRIGHT: (C)2008,JPO&INPIT
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