| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire for heavy load capable of suppressing uneven wear on the tread edge side while improving water discharging property on the tire equator side.SOLUTION: A pneumatic tire for heavy load has a plurality of main grooves 3 and a plurality of lateral grooves provided on a tread part 2 and, thereby, allows a plurality of blocks to be partitioned. Therein, the main grooves 3 contain a pair of crown main grooves 4 and a pair of shoulder main grooves 5, all of the lateral grooves contain a plurality of crown lateral grooves 11 which are inclined with respect to the tire axial direction and partition a crown block 15, a plurality of middle lateral grooves 12 which partition a middle block 16 and a plurality of shoulder lateral grooves 13 which partition a shoulder block 17 and an inclination angle β2 of the middle lateral grooves 12 is smaller than an inclination angle β1 of the crown lateral grooves 11 and is larger than an inclination angle β1 of the shoulder lateral grooves 11.SELECTED DRAWING: Figure 2 |
