Toy vehicle with gyroscopic action rear wheels

Details Toy vehicle with gyroscopic action rear wheels Toy vehicle with gyroscopic action rear wheels

1997-08-19

2000-02-15

Muir, D Neal

Amusement devices: toys

Rolling or tumbling

Remotely controlled

446460, 446465, 446470, 446233, A63H 3004, A63H 1736, A63H 1700, A63H 1726

Patent

active

060246278

ABSTRACT:
A remotely controlled toy vehicle includes a pair of parallel front wheels a pair of rear wheels at least essentially unchanging in configuration and outer diameter during operation, and a pair of reversible electric motors controlled remotely from the vehicle, each motor driving a separate one of the pair of rear wheels independently of the other motor and other rear wheel to selectively propel and steer the toy vehicle during operation. Each rear wheel has a maximum outer diameter (D) that is: greater than a minimum distance (T) between facing sides of the pair of rear wheels; more than twice the diameter (d) of each front wheel; greater than the distance (WB) between the front and rear wheel axes; and/or more than one-half the overall vehicle length (L) along its centerline. At least two-thirds and suggestedly at least three-quarters of the weight of each rear wheel is located within fifteen percent of an outer end of the rear wheel radius adjoining an outer circumference of each rear wheel. The combined weights of the two rear wheels is at least thirty percent of the total weight of the vehicle and, where the vehicle includes a battery power supply to operate the motors, the combined weight of the two wheels is preferably at least thirty percent of the total weight of the vehicle without such batteries.

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