Pneumatic Tire

摘要

In a pneumatic tire, a belt layer is formed by laminating a pair of cross belts having a belt angle, as an absolute value, of not less than 10° and not greater than 45° and having belt angles of mutually opposite signs, and a circumferential reinforcing layer having a belt angle within a range of ±5° with respect to the tire circumferential direction. Moreover, the distance (Gcc) from the tread profile to the tire inner circumferential surface along the tire equatorial plane and the distance (Gsh) from the tread edge to the tire inner circumferential surface have a relationship satisfying 1.10≦Gsh/Gcc.

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 portions defined by the circumferential main grooves;
left and right circumferential main grooves on an outermost side in a tire width direction are outermost circumferential main grooves, and left and right land portions on an outer side in the tire width direction define d by the outermost circumferential main grooves are shoulder land portions, the belt layer being formed by laminating a pair of cross belts having a belt angle, as an absolute value, of not less than 10° and not greater than 45° and having belt angles of mutually opposite signs, and a circumferential reinforcing layer having a belt angle within a range of ±5° with respect to the tire circumferential direction; a distance Gcc from a tread profile to a tire inner circumferential surface along a tire equatorial plane and a distance Gsh from a tread edge to the tire inner circumferential surface having a relationship satisfying 1.10≦Gsh/Gcc; and an outside diameter D1 of the tread profile along the tire equatorial plane, an outside diameter D2 of the tread profile at an edge portion on an inner side of the shoulder land portion in the tire width direction, and an outside diameter D3 of the tread profile at the tread edge having a relationship satisfying D1>D2, D1>D3, and −0.65≦(D2−D3)/(D1−D3)≦0.85.