| 摘要 |
<p>A tire for a heavy duty vehicle capable of providing an excellent wear resistance on both wet and dry road surfaces. One row of center land part row (24) across a tire centerline (CL) is disposed in a center area (26) by forming a pair of circumferential auxiliary grooves (20) on a tread part (16) on both sides of the tire centerline (CL). Also, the center land part row (24) is formed of a large number of pseudo-block rows by forming lateral narrow grooves (30) connecting the pair of circumferential auxiliary grooves (20) to each other. In addition, a pair of block rows (36) partitioned by the pair of circumferential auxiliary grooves (20) and lug grooves (34) are formed on both sides of the pair of circumferential auxiliary grooves (20) in the tire lateral direction. The negative ratio of the center land part row (24) is within the range of 10 to 20%, and the negative ratios of the block rows (36) are within the range of 15 to 27%. The average angle a of the lug grooves (34) relative to a tire circumferential direction is within the range of 65 to 80°.</p> |
