| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of enhancing the steering stability, the partial wear resistance and the noise performance on a dry road surface, while ensuring the wet performance as the conventional level. SOLUTION: The width G1 of a first main groove 2 extending in an annular manner while bending in the tire circumferential direction TC on a tire equatorial surface TE of a tread surface 1 is set to be≤10% of the tire ground contact width TW, and the bend width A1 is set in a range of 2-10 mm. Two second main grooves 3 extending straight in the tire circumferential direction TC on both sides thereof are arranged in a range of 20-35% of the tire ground contact width TW from the tire equatorial surface TE. A first lug groove 5 extending in the tire width direction extends in a curved manner while being inclined at the angleαof inclination with respect to the tire circumferential direction TC being≥35°, one end thereof 5x is communicated with the second main groove 3 and the other end 1y is separated from the first main groove 2, and a first land part 4 between the main grooves 2, 3 is formed into a rib. The corner part 4A1 of the acute angle part 4A of the rib held between the second main groove 3 and the first lug groove 5 is chamfered. COPYRIGHT: (C)2010,JPO&INPIT |
