| 摘要 |
PROBLEM TO BE SOLVED: To improve heat radiation performance of a tread center section, in a pneumatic radial tire for a construction vehicle.SOLUTION: A tread section 20 includes: at least two narrow grooves 11 extending in a tire circumferential direction; and a tread center section C which is a land section surrounded by the narrow grooves 11 near an equator line CL extending in a tire circumferential direction in a tread width center. The tread center section C has a plurality of inclined grooves 12 inclined with respect to the tire circumferential direction. A width W1 of the narrow groove 11 is smaller than a depth D1. A width W2 of the inclined groove 12 is smaller than a depth D2. The inclined groove 12 is terminated in the tread center section C without its end penetrating the narrow groove 11. A width L of the tread center section C is larger than 0.15 times and smaller than 0.3 times the tread width T. |
