| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of improving ice braking performance and ice turning performance.SOLUTION: In a pneumatic tire 1, a first three-dimensional sipe 7 comprises a bent part 7a bending in a sipe depth direction, and sipe widths W11-W14 are formed so as to be constant over the sipe depth direction. A second three-dimensional sipe 8 comprises wide parts 8a-8c provided inside a tread rubber 3 and having sipe widths W22-W24 wider than the sipe width W21 of the surface of the tread rubber 3. In a shoulder area 3s, a total sum L1 s of the surface length of the first three-dimensional sipe 7 is longer than a total sum L2s of the surface length of the second three-dimensional sipe 8. In a center area 3c, a total sum L2c of the surface length of the second three-dimensional sipe 8 is longer than a total sum L1c of the surface length of the first three-dimensional sipe 7.SELECTED DRAWING: Figure 2 |
