Pneumatic radial tire suitable for use at high speed

Details Pneumatic radial tire suitable for use at high speed Pneumatic radial tire suitable for use at high speed

1987-12-15

1990-08-14

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

B60C 1111

Patent

active

049479113

ABSTRACT:
When a radial tire is used at high speed (e.g. 250 km/h or more), tire blocks deform outward due to a centrifugal force applied to mass at the center of each block, so that contact pressure rises and therefore the tire is heated into blow out. To overcome this problem, the rubber thickness (gage) of the block partitioned by circumferential grooves and transverse grooves is reduced at the central area of the block. To reduce the rubber thickness, a shallow groove extending along the circumferential groove is formed in the middle of the block or a hole is formed at the center of the block.

REFERENCES:
patent: 2104532 (1938-01-01), Sommer
patent: 3631911 (1972-01-01), Verdier
patent: 3698462 (1972-10-01), Jacobs
patent: 4296789 (1981-10-01), Roberts et al.
patent: 4416316 (1983-11-01), Clatworthy et al.
patent: 4722378 (1988-02-01), Carolla et al.
patent: 4744400 (1988-05-01), Sekoguchi

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