Tread for radial carcass tires for heavy vehicles

Details Tread for radial carcass tires for heavy vehicles Tread for radial carcass tires for heavy vehicles

1991-11-05

1994-03-29

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

B60C 1111

Patent

active

052976041

ABSTRACT:
Tread for heavy-vehicle tires with radial carcass having at least one cirferential groove (1) in the form of a broken line and wide transverse grooves (2) in the form of a broken line defining blocks, the wide transverse grooves (2) having walls of constant and symmetrical inclination over a median zone (6) extending on both sides of the median plane over a width of between 40% and 75% of the width of the tread and having, beyond said median zone and up to the edges, walls of variable and asymmetrical inclination as well as two circumferential narrow side grooves (5) located at a distance from the edges not exceeding 1/3 of the width of the tread and having a depth of between 10% and 70% of the depth of the transverse grooves.

REFERENCES:
patent: 2891594 (1959-06-01), Ford
patent: 3844326 (1974-10-01), Verdier
patent: 4177850 (1979-12-01), Ogawa et al.
patent: 4186788 (1980-02-01), Pommier
patent: 4284115 (1981-08-01), Ohnishi
patent: 4461334 (1984-07-01), Tansei et al.
patent: 4832099 (1989-05-01), Matsumoto
Patent Abstracts of Japan, vol. 12, No. 113 (M-683) [2960] Apr. 9, 1988.

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