| 摘要 |
<p>A radio-control toy vehicle (14) is provided with six nonsteerable wheels (21-26), three on each lateral side of the vehicle. At least the center wheel (23, 24) on each lateral side is drivingly coupled with a separate, reversible motor (31, 41). The vehicle is steered by controlling the operation and direction of each motor. The wheels are arranged and the vehicle statically balanced such that the vehicle (14) is supported by the center pair of wheels (23, 24) and one of the two remaining front and rear pairs of wheels, preferably the rear pair of wheels (25, 26), when the vehicle is stationary on a level, horizontal surface. The vehicle (14) is dynamically balanced so that when the wheels of the middle pair are driven in opposite linear directions, the vehicle spins rapidly about a vertical axis located directed between the middle pair of wheels and further pitches automatically slightly forwardly around the middle pair of wheels (23, 24) to lower the front end of the vehicle (14) while raising the rear end and rear pair of ground-contacting wheels from the ground, so that the vehicle is supported only on the center pair of wheels. <IMAGE></p> |
