Radial tire tread for heavy-duty road vehicles having platform d

Details Radial tire tread for heavy-duty road vehicles having platform d Radial tire tread for heavy-duty road vehicles having platform d

1987-10-22

1990-08-07

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

B60C 1106

Patent

active

049459660

ABSTRACT:
To maintain excellent antiwet skidding performance and good tire external appearance until a radial tire for heavy-duty road vehicles serves its time, a plurality of narrow grooves (40) are formed along at least longitudinal direction of each of plural platforms arranged at intervals in circumferential direction of each of land portions formed between two main circumferential grooves, in order to separate the platform from the tire land portion. This is because the narrow grooves serve to decrease the rigidity of the platforms and therfore to allow the platforms to be more slidably movable relative to the ground to increase abrasion rate on the platform surface, thus maintaining a height difference between the tire land portions and the platforms.

REFERENCES:
patent: 2197662 (1940-04-01), Hughes
patent: 2240542 (1941-05-01), Bourdon
patent: 2260193 (1941-10-01), Overman
patent: 2265543 (1941-12-01), Overman
patent: 4217942 (1980-08-01), Takigawa et al.
patent: 4345632 (1982-08-01), Takigawa et al.

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