Tire crampon

Details Tire crampon Tire crampon

1988-10-24

1990-03-06

Stormer, Russell D.

Land vehicles: wheels and axles

Wheel

Emergency

301 51, 305 5, B60B 1526

Patent

active

049060520

ABSTRACT:
The tire crampon comprises a cross-shaped member having four arms, interconnected by half-braces bearing bushes for connection to a vehicle's wheel hub bolts. Counter-arms are slideable on the arms and each have a toothed sector rigidly associated with an end thereof. The counter-arms move radially outwardly away from the cross-shaped member upon having a centrifugal force applied thereto, and due to the biasing action of compression springs acting between the arms and the counter-arms, thereby causing the toothed sectors to grip the ground. Chains limit the excursion of the counter arms, which can also be locked in a retracted position by pawl devices.

REFERENCES:
patent: 1367661 (1921-02-01), Ingram
patent: 1777964 (1930-10-01), Dunster
patent: 2282470 (1942-05-01), Gilbert

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