Pneumatic Tire

摘要

A pneumatic tire comprises: a carcass layer; a belt layer which is positioned to the outer side of the carcass layer in the tire radial direction; and a rubber tread which is positioned on the outer side of the belt layer in the tire radial direction. The belt layer is formed by laminating a pair of intersecting belts having belt angle with absolute values of 10 to 45° and mutually opposite-signed belt angles, and a circumferential reinforcing layer having a belt angle which is within a range of ±5° with respect to the tire circumferential direction. A distance (Gcc) from the tread profile to the tire inner circumferential surface along the tire equatorial plane, and a distance (Gsh) from a tread end 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; the belt layer being formed by laminating a pair of cross belts having a belt angle of not less than 10° and not greater than 45° in absolute values 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 end to the tire inner circumferential surface having a relationship satisfying 1.10≦Gsh/Gcc; and a shoulder drop amount Dt of the tread profile at a tire ground contact end and an outer diameter SH of the tread profile along the tire equatorial plane having a relationship satisfying Dt/SH≦0.015.