Radial tire having reduced ply steer

Details Radial tire having reduced ply steer Radial tire having reduced ply steer

1987-06-17

1989-04-11

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152526, B60C 918, B60C 1111

Patent

active

048197041

ABSTRACT:
A radial tire wherein part or the whole of the blocks present on the tread area have an angle .theta. of the direction in which the maximum shear rigidity is attained relative to the circumferential direction of the tire in the range of 40.degree..ltoreq..theta..ltoreq.75.degree., the direction in which the maximum shear rigidity of said block is attained and the direction of the cords of the outermost belt layer are opposite to each other with respect to the circumferential direction of the tire, the ratio of the maximum shear rigidity of said block to the minimum shear rigidity of said block is in the range from 1.4 to 1.8, and the total area of the block is 65% or more based on the total area of all the blocks.

REFERENCES:
patent: 3945422 (1976-03-01), Pottinger
patent: 4194548 (1980-03-01), Roger
patent: 4469157 (1984-09-01), Morikawa et al.
patent: 4732194 (1988-03-01), Saneto et al.

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