Pneumatic tire
AssigneeToyo Tire Corporation
InventorHarunobu Suita
Life of this patent
Estimating the term…
Abstract
A tire having four belt plies laminated at an outside circumference of the carcass. Cords at second and third belt plies among the four belt plies, as numbered from the carcass to the outside circumference, intersect, being inclined in mutually opposite fashion with respect to a tire axis. Angles of inclination with respect to the tire circumferential direction of the second and third belt plies are such that an angle at a belt end is less than an angle at a tire equator. A first mounded region that has a peak at which the angle of inclination is greater than at a periphery and that corresponds to a shoulder rib which among the plurality of ribs is provided. The peak at the first mounded region is arranged at a shoulder rib region which appears to overlap the shoulder rib as seen in plan view.
Claims8
A pneumatic tire having a carcass, and having four belt plies laminated at an outside circumference of the carcass in a tread region, wherein formed at a surface of the tread region are a plurality of major grooves which extend in a tire circumferential direction, and a plurality of ribs which extend in continuous fashion in the tire circumferential direction and which are partitioned by the major grooves;
- wherein cords at second and third belt plies among the four belt plies, as numbered from the carcass to the outside circumference, intersect, being inclined in mutually opposite fashion with respect to a tire axis;
- wherein angles of inclination with respect to the tire circumferential direction of the second and third belt plies are such that an angle at a belt end is less than an angle at a tire equator;
- wherein a first mounded region in which angle varies that has a peak at which the angle of inclination is greater than at a periphery and that corresponds to a shoulder rib which among the plurality of ribs is outwardmost in a tire width direction is provided;
- and
- wherein the peak at the first mounded region in which angle varies is arranged at a shoulder rib region which appears to overlap the shoulder rib as seen in plan view.
Dependencies are inferred from the claim text.