| 摘要 |
To improve resistance to heat generation in the land parts of a tread center area. A pneumatic tire, having: a plurality of center lug grooves provided so as to be separated by gaps in a tire circumference direction, the center lug grooves extending so as to cut across a tire equator line, and having first groove curved parts and second groove curved parts; shoulder lug grooves extending outward in the tire width direction in the tire-circumference-direction gaps between the center lug grooves, the ends on the inner sides of the tire width direction being farther outward in the tire width direction than are the ends of the center lug grooves; a pair of circumferential-direction major grooves for connecting the ends of the center lug grooves and the inner ends of the shoulder lug grooves in the tire width direction; and circumferential-direction minor grooves each formed throughout the entire tire periphery by the connecting of a first groove curved part of one center lug groove and a second groove curved part of another center lug groove that are adjacent to each other in the tire circumference direction, each of the circumferential-direction minor grooves having a third groove curved part and a fourth groove curved part. |
