| 摘要 |
<p>A pneumatic tire has a tread pattern defined by at least one straight circumferential groove (2,3) and a plurality of lateral grooves (4) extending from tread ends toward the vicinity of a circumferential line perpendicular to a meridional line of the tire and extending slantwise and upward toward the tread end. In this tire, the lateral groove (4) is composed of a main lateral groove portion (5) and an auxiliary lateral grove portion (6). The main lateral groove portion (5) is comprised of a first slant segment (7) at an inclination angle of 5-30 DEG with respect to the circumferential direction of the tire, a second slant segment (8) at an inclination angle of 60-80 DEG with respect to the circumferential direction, and a curved segment (9) smoothly connecting the slant segments (7,8), and the auxiliary lateral groove portion (6) extends substantially parallel with the second slant segment (8) and opens to the tread end at the first slant segent (7). <IMAGE></p> |
