Tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorMasafumi OTANI
Life of this patent
Estimating the term…
Abstract
A tire comprises a tread reinforcing layer comprising a cord-reinforced part in which a rubberized cord strip with at least one reinforcing cord covered with a topping rubber is wound. The cord-reinforced part comprises a spiral part in which the rubberized cord strip is wound spirally and circumferentially of the tire. The spiral part includes a first edge part and a second part continued therefrom. In the second part, the rubberized cord strip extends spirally more than one turn around the tread portion. In the first edge part, the rubberized cord strip extends in the tire circumferential direction at an angle smaller than that in the second part, and overlaps the rubberized cord strip in the second part.
Claims20
A tire comprising:
- a toroidal carcass, and
- a tread reinforcing layer disposed radially outside the carcass in a tread portion,
- wherein
- the tread reinforcing layer comprises a cord-reinforced part in which a rubberized cord strip with at least one reinforcing cord covered with a topping rubber is wound,
- the cord-reinforced part comprises a spiral part in which the rubberized cord strip is wound spirally and circumferentially of the tire,
- the spiral part includes a first edge part and a second part continued from the first edge part,
- in the second part, the rubberized cord strip is wound spirally and circumferentially of the tire more than one turn, and
- in the first edge part, the rubberized cord strip extends in the tire circumferential direction at an angle with respect to the tire circumferential direction which angle is smaller than that in the second part, and overlaps the rubberized cord strip in the second part.
Dependencies are inferred from the claim text.