| 摘要 |
<p>A pneumatic tire capable of suppressing the disengagement of the sipe wall surfaces from each other. In a sipe formed in the block of a tread part, two ridge parts (32, 34) are formed on one sipe wall surface (29P), and two root parts engaged with the ridge parts (32, 34), respectively, are formed in the other sipe wall surface. The two ridge parts (32, 34) form a converging part (30) converging with each other at the longitudinal center part of the sipe and at the radial outer end of a tire, and so extend linearly from the converging part (30) toward the longitudinal both ends (F, K) of the sipe as to be gradually separated from each other to the radial inner side of the tire. With this configuration, the contact length of the adjacent sipe wall surfaces in the sipe depth direction (R) is increased.</p> |
