| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of enhancing tire performance such as on-ice performance by increasing block rigidity during brake-driving or cornering based on the sipe shape, and improving releasability from a die. <P>SOLUTION: In the pneumatic tire having a plurality of sipes 5 in a tread part which demarcate a plurality of blocks 4 and extend in the tire width direction in the blocks 4. Each sipe 5 forms a zigzag shape with the amplitude in the tire circumferential direction on a tread surface S, forms a bend part 6 which is bent in the tire circumferential direction at two or more parts in the tire radial direction inside the blocks and continuous in the tire width direction, and forms a zigzag shape with the amplitude in the tire radial direction at the bend part 6. The amplitude L1 in the tire circumferential direction of the bend part which is an odd number when counted from the tread surface side, and the amplitude R1 in the tire circumferential direction of the bend part which is an even number satisfy a relationship L1>R1. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
