| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic radial tire in which an eccentric wear characteristic of a tire shoulder part is improved by making its ground contact configuration and contact pressure distribution appropriate with competitive cost. SOLUTION: The pneumatic radial tire includes a plurality of circumferential main grooves 1a, 1b, lug grooves 2 extending almost in a tire width direction and a tread pattern forming a plurality of land part lines 4a, 4b on a tire tread surface T. In the land part lines 4b of the tire shoulder parts including ground contact ends E, the lug grooves 2, which extend to the ground contact ends E from the circumferential main grooves 1b closest to the ground contact ends E, terminate near the ground contact ends E. Land parts L are formed which continue in a circumferential direction near the ground contact ends E. Intermittent slit secondary grooves 3 are formed almost parallel to the main grooves 1b on the main groove 1b side of the land part lines 4b of the tire shoulder parts. COPYRIGHT: (C)2009,JPO&INPIT |
