| 摘要 |
<p>A pneumatic tire where the positions of the deepestmost sections (33btm) of circumferential grooves (33) vary in the circumferential direction, at a predetermined cycle in the tread width direction in the circumferential grooves (33). Further, depth direction positions at which the groove bottom surface of a circumferential groove (33) is in contact with perpendicular lines (perpendicular line P1, perpendicular line P2), and in addition, an angle formed by the perpendicular lines and by a cross-sectional line in the width direction of the treads of the groove bottom surface vary at predetermined intervals in the circumferential direction. The perpendicular lines are lines substantially perpendicular to or perpendicular to the surfaces of treads that pass edge sections (edge section 11eg, edge section 12eg) on the circumferential groove side of ribs. In the pneumatic tire, unequal wear of the tire caused by lateral force from the tread width direction is suppressed and wet performance is improved.</p> |
