Wheel with extendable traction spikes and toy including same

Details Wheel with extendable traction spikes and toy including same Wheel with extendable traction spikes and toy including same

1985-10-04

1986-07-22

Scherbel, David A.

Land vehicles: wheels and axles

Wheel

Traction increasing

301 41R, 446448, 446465, B60B 1512

Patent

active

046015191

ABSTRACT:
The present invention wheels have extendable traction spikes (spike pins) which are contained within the wheels and are automatically extended to enhance wheel traction. The automatic extension of the spike pins occurs, in one embodiment, upon achievement of a predetermined torque. In another embodiment, when a predetermined movement, i.e. forward motion of the vehicle, occurs, the spike pins are automatically extended. The invention also includes vehicular toys including such wheels.

REFERENCES:
patent: 1605386 (1926-11-01), Beibin
patent: 2913093 (1959-11-01), Bevan
patent: 4547173 (1985-10-01), Jaworski et al.

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