PNEUMATIC TIRE

摘要

To provide a pneumatic tire which is improved in on-snow performance, while maintaining steering stability on dry road surface. The pneumatic tire is provided in a tread portion 2 with a pair of shoulder main grooves 3, a center main groove 4, shoulder land portions 6, and middle land portions 5. The middle land portions 5 are provided with middle lateral grooves 10 extending from the shoulder main grooves 3 toward the inside in the tire axial direction, while gradually decreasing the angle with respect to tire circumferential direction. The middle lateral groove 10 is provided with a groove bottom sipe 15 opened in the groove bottom.

主权项

1. A pneumatic tire provided in the tread portion with
a pair of shoulder main grooves extending continuously in the tire circumferential direction on the most tread edge side, a center main groove extending continuously in the tire circumferential direction on the inner side in the tire axial direction of the shoulder main grooves, a shoulder land portion on the outer side in the tire axial direction of each of the shoulder main grooves, and a middle land portion between the shoulder main groove and the center main groove, and characterized in that the middle land portion is provided with a middle lateral groove extending from the shoulder main groove toward the inside in the tire axial direction, while decreasing the angle with respect to the tire circumferential direction, and the middle lateral groove is provided with a groove bottom sipe extending along the middle lateral groove and opened in the groove bottom of the middle lateral groove.