| 摘要 |
In a heavy load pneumatic tire, a belt includes an intersecting belt layer formed by layering a pair of belt plies and an angled belt layer formed by at least one belt ply. 10° < ¸ 1 < 25° and 15° < ¸ 2 - ¸ 1 < 25°, where ¸ 1 and ¸ 2 are the angles of inclination of belt cords respectively in the belt intersecting belt layer and the angled belt layer. The carcass shape is formed by connecting two arcs with different radii of curvature. R 1 > R 2 , where R 1 and R 2 are respective radii of curvature of inner and outer arcs in the tire width direction. The distance, measured along the tire width direction from the tire equatorial plane, to the intersection of the inner and outer arcs is 80% or more of the similarly-measured distance of the overlapping range between belt plies in the intersecting belt layer. |
