| 摘要 |
The present invention has an object to provide a pneumatic tire having a sipe, which can increase ice braking performance without reducing anti-wear performance. The pneumatic tire includes: a plurality of land portions 4 partitioned by grooves 2 and 3 and formed in a tread surface 1a; and at least one sipe 5 formed in each of the land portions 4, wherein the sipe 5 is formed so that sipe inner wall surfaces 6 and 6 are formed perpendicularly to the tread surface 1a, one or more recesses 7 exposed on the tread surface 1a are formed in at least one of the sipe inner wall surfaces 6 and 6 opposed to each other, the recess 7 has a sectional area gradually decreasing from an opening end of the sipe 5 toward a sipe bottom 8 and converges on the sipe inner wall surface 6 before reaching the sipe bottom 8.
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