Pneumatic tire
AssigneeThe Yokohama Rubber Co., Ltd.
InventorTatsuya Mashiyama
Life of this patent
Estimating the term…
Abstract
A pneumatic tire includes the belt layer that is formed by laminating the circumferential reinforcing layer and the pair of cross belts. Also, the tire external diameter R at the point of intersection O of the tire equatorial plane CL and the tread profile, the distance D1 in the tire radial direction between the tire ground contact edge T and the point of intersection O, and the distance D2 in the tire radial direction between the foot X of the line drawn from the end portion on the outer side in the tire width direction of the circumferential reinforcing layer 145 normal to the tread profile and the point of intersection O have a relationship such that 0.010≦D1/R≦0.015 and 0.27≦D2/D1≦0.3.
Claims17
A pneumatic tire, comprising a belt layer that is formed by laminating a pair of cross belts and a circumferential reinforcing layer, wherein
- a tire external diameter R at a point of intersection O of a tire equatorial plane and a tread profile, a distance D1 in a tire radial direction between a tire ground contact edge T and the point of intersection O, and a distance D2 in the tire radial direction between a foot X of a line drawn from an end portion in a tire width direction of the circumferential reinforcing layer normal to the tread profile and the point of intersection O have a relationship such that 0.010≦D1/R≦0.015 and 0.27≦D2/D1≦0.30;
- and
- a width Ws of the circumferential reinforcing layer relative to a tire developed width TDW is within the range such that 0.65≦Ws/TDW≦0.80.
Dependencies are inferred from the claim text.