Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1995-05-02
1999-04-27
Knable, Geoffrey L.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
15220914, 152900, 152DIG3, B60C 1112
Patent
active
058969055
ABSTRACT:
In order to improve the wear of the trailing edges of the relief elements of a tread (1) for "heavy vehicle" tires, which elements are defined in the axial direction by circumferential grooves and in the circumferential direction by incisions (30) of a width other than zero and at most equal to 3 mm, said incisions (30) are inclined with respect to the normal (P) to the surface of the tread by an angle .alpha. of between 5.degree. and 25.degree. so that the resultant force (F.sub.F, F.sub.M) exerted by the ground on the tread tends to straighten the incisions (30) towards a zero inclination. The inclination of the incisions (30) is particularly advantageous in the case of a tread (1) provided with "wide" circumferential grooves having a step (4). Application for steering, load-bearing or driving tires.
REFERENCES:
patent: 2197662 (1940-04-01), Hughes
patent: 2240542 (1941-05-01), Bourdon
patent: 2779060 (1957-01-01), Knox
patent: 3782438 (1974-01-01), Mirtain
patent: 4298046 (1981-11-01), Herbelleau et al.
patent: 4705088 (1987-11-01), Ghilardi
patent: 4836257 (1989-06-01), Mamada et al.
JP-A-58 112 805 (Yokohma Gomu K.K.) May 7, 1983.
Compagnie Generale Des Establissements
Knable Geoffrey L.
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