Patent ID: 6149494
Filing Date: 2000-11-21
Classification: A63H

Abstract:
A toy comprising:a platform having a top side and a peripheral edge;a moving body having a front end portion provided with a front wheel unit which is rotatable about a horizontal first rotary axis, a rear end portion provided with a horizontal transmission shaft parallel to said first rotary axis, a bottom side provided with a turning wheel between said front and rear end portions, and two opposite lateral sides, said transmission shaft having two opposite ends, said moving body further having a first rear wheel mounted securely on one of said ends of said transmission shaft, and a second rear wheel mounted rotatably on the other one of said ends of said transmission shaft and rotatable about a second rotary axis parallel to said first rotary axis, said turning wheel being rotatable about a horizontal third rotary axis generally perpendicular to said first and second rotary axes, said turning wheel being entirely disposed higher than the lowest vertical point of said front wheel unit and said rear wheels, said moving body being provided with a drive unit that is coupled to said turning wheel and said transmission shaft to drive movement of said moving body on said top side of said platform, said turning wheel contacting said top side of said platform after said front wheel unit extends beyond said peripheral edge and enabling said front wheel unit to climb back on top of said platform, thereby preventing said moving body from falling off said platform while said drive unit drives movement of said moving body on said top side of said platform; anda balance bar having an intermediate fulcrum portion mounted pivotally on said moving body about a horizontal first pivot axis, and two arm portions on opposite sides of said fulcrum portion and projecting from said lateral sides of said moving body, each of said arm portions having a distal section provided with a tray plate adapted for placing a plurality of game tokens thereon such that a moment of force is applied on said balance bar to cause said balance bar to incline about said first pivot axis with respect to said moving body according to the weights of the game tokens and the positions of the game tokens on said tray plates.