| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of improving an on-ice braking performance at an early stage of abrasion without deteriorating a general performance. <P>SOLUTION: This pneumatic tire has a plurality of blocks 4 blocked by a vertical groove 2 and a horizontal groove 3 at a tread part 1. A shallow groove 6 is provided along an edge of the block 4 on a tread face of the block 4. Width W of the shallow part 6 is within a range of 1.0-5.0 mm, depth D of the shallow groove 6 is within a range of 0.2-2.0 mm, and a total edge length per block of the shallow groove 6 is within a range of 50-300% of the peripheral edge length of the block 4 including the shallow groove 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
