| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of enhancing the stone-catching resistance while maintaining the braking performance, the traction performance and the partial wear resistance. SOLUTION: In the pneumatic tire in which a plurality of main grooves extending in the tire circumferential direction are formed in a tread to form a plurality of ribs, sipes 3 opened in the main grooves on both side of the tire width direction are formed in at least one rib. The depth of the sipe 3 is gradually increased from a shallowest portion 13 to an end. The shallowest portion 13 is deviated in the shoulder side in the tire width direction from a center in the longitudinal direction of the sipe by 5-30% of the sipe length L. The depth D1 of the shallowest portion 13 of the sipe 3 is 5-20% of the main groove depth D. The depths Ds, Dc at both ends of the sipe 3 are 40-80% of the main groove depth D. COPYRIGHT: (C)2008,JPO&INPIT |
