| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire particularly improved in uneven wear resistance of blocks dividingly formed in the vicinity of a tire equator surface, without deteriorating performance on ice. SOLUTION: Block division is performed by disposing, on a tread surface 1, a plurality of circumferential grooves extended in a tread circumferential direction; and a plurality of lateral grooves extended in a tread width direction across these circumferential grooves. A sipe 10 located close to the tire equator surface and a sipe 11 located close to a tread end, are respectively disposed on the blocks 7 interposing therebetween the central circumferential groove 2 located in the vicinity of the tire equator surface. The sipe 10 close to the tire equator surface is extended with a curved portion in a depth direction. In the sipe 11 close to the tread end, the extending form thereof in the depth direction is formed identical to the tread surface. COPYRIGHT: (C)2011,JPO&INPIT
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