Climbing vehicle

Details Climbing vehicle Climbing vehicle

1992-07-23

1993-07-20

Yu, Mickey

Amusement devices: toys

Rolling or tumbling

Including wheel- or axle-operated device

446465, 180 71, A63H 1726, B62D 5700

Patent

active

052288803

ABSTRACT:
A drive mechanism for a toy vehicle. The drive mechanism connects a drive shaft of the vehicle to a driven wheel having an axis of rotation. It includes a first arm affixed to the vehicle drive shaft for rotation therewith. A second arm is affixed to the wheel axle for rotation with the axle. The first and second arms are pivotally connected together at a position offset from the drive shaft and the wheel axis. A spring biases the arms into an overlapping relationship in which, during normal rolling movement of the vehicle, the drive shaft is aligned with the driven wheel so that the wheel rotates about the axis of the drive shaft. A first stop is provided to engage the arms to limit rotation of the arms about their pivotal connection relative to each other in the direction of rotation of the wheel axle. A second stop engages the arms to limit rotation of the arms away from each other towards a fully extended position.

REFERENCES:
patent: 3672458 (1972-06-01), Mackerle
patent: 3913982 (1975-10-01), Brewer
patent: 4353428 (1982-10-01), Kovar et al.
patent: 4380135 (1983-04-01), Wildman et al.
patent: 4547173 (1985-10-01), Jaworski et al.
patent: 4601519 (1986-07-01), D'Andrade
patent: 4643696 (1987-02-01), Law
patent: 4648853 (1987-03-01), Siegfried
patent: 5102367 (1992-04-01), Mullaney et al.

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