Pneumatic Tire

摘要

In a cross-sectional view of a pneumatic tire in the tire meridian direction, land sections, which are located on the inner side of left and right outermost circumferential main grooves in the tire width direction, have a first profile which protrudes outward in the tire radial direction. In addition, shoulder land sections, which are located on the outer side of the right and left outermost circumferential main grooves in the tire width direction, have a second profile which protrudes inward in the tire radial direction within a ground contact surface. In addition, the distance between a line extending from the first profile in the ground contact surface of the shoulder land section and the second profile in the tire radial direction increases toward the outer side in the tire width direction.

主权项

1. A pneumatic tire, comprising:
a carcass layer; a belt layer disposed on an outer side of the carcass layer in a tire radial direction; a tread rubber disposed on an outer side of the belt layer in the tire radial direction; at least three circumferential main grooves extending in a tire circumferential direction; and a plurality of land sections partitioned and formed by the circumferential main grooves; the belt layer being formed by laminating a pair of cross belts each having a belt angle with an absolute value of not less than 10° and not more than 45° and having mutually opposite signs, and a circumferential reinforcing layer having a belt angle within a range of ±5° with respect to the tire circumferential direction; among the circumferential main grooves, the circumferential main grooves that are outermost to a left and right in a tire width direction being termed an outermost circumferential main grooves, in a cross-sectional view taken along a tire meridian direction, one of the land sections that is closer to an inner side in the tire width direction than the outermost circumferential main grooves to the left and right has a first profile that protrudes toward the outer side in the tire radial direction, and another one of the land sections that is closer to an outer side in the tire width direction than the outermost circumferential main grooves to the left and right (hereinafter termed a shoulder land section) has a second profile that protrudes toward an inner side in the tire radial direction within a ground contact surface; and a distance d in the tire radial direction between a line extending from the first profile within the ground contact surface of the shoulder land section and the second profile increasing toward the outer side in the tire width direction.