Pneumatic radial tire for passenger car

Details Pneumatic radial tire for passenger car Pneumatic radial tire for passenger car

1992-03-12

1994-12-06

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152537, B60C 918, B60C 1104

Patent

active

053701674

ABSTRACT:
A pneumatic radial tire for a passenger car, which includes a plurality of grooves provided on the surface of a tread and extending at least in a tire circumferential direction and a belt having a double layer structure and provided within the tread, characterized in that the depth of the grooves is in the range of 6.0 to 8.5 mm, the thickness of a rubber under the groove defined as the distance from the bottom of the groove to the outermost belt layer is in the range of 0.5 to 2.5 mm, and at least one layer of the belt comprises aramid fiber cords coated with a coat rubber having a modulus of elasticity at 50% elongation of 30 to 55 kgf/cm.sup.2.

REFERENCES:
patent: 3851692 (1974-12-01), Takemura et al.
patent: 4602666 (1986-07-01), Kabe et al.
patent: 4773459 (1988-09-01), Yamaoka et al.
patent: 4854360 (1989-08-01), Nagumo et al.
patent: 4884607 (1989-12-01), Mori
patent: 4947916 (1990-08-01), Ishikawa et al.
patent: 4986324 (1991-01-01), Suzuki et al.
patent: 5000239 (1991-03-01), Brayer et al.
patent: 5135038 (1992-08-01), Graas et al.
"Pneumatic Tyre Design" E. C. Woods; 1955 pp. 32-34.
1992 Year Book The Tire and Rim Association, Inc., pp. 1-01, 1-06, 1-08, 1-10, and 1-12.

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