| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pneumatic tire that exhibits superior steering stability performance, while securing partial wear performance and drainage performance. <P>SOLUTION: In the pneumatic tire, on a tread surface Tr, a plurality of land parts, divided by a plurality of main grooves 1a to 1d that extend along a tire circumferential direction, are provided and at least one of land parts, located outermost in a tire width direction, is constituted with shoulder ribs 2 that continuously extend to the tire circumferential direction. In each of the shoulder ribs 2, a plurality of narrow grooves 6, which extend along the tire circumferential direction with both ends closed, and cut form sipes 7, which extend from both ends of the narrow grooves 6 to the outside in a tire width direction, are formed with intervals in the tire circumferential direction. In groove bottoms of the main grooves 1a and 1d facing each of the shoulder ribs 2, reinforcement block 8, whose height is gradually decreased from a wall surface of each of the shoulder ribs 2 to the inside in the tire width direction, is provided at an overlapping position, in the tire width direction, with the narrow groove 6. <P>COPYRIGHT: (C)2012,JPO&INPIT |
