Patent ID: 8302728
Filing Date: 2012-11-06
Classification: A63H

Abstract:
1. A system for controlling a four-wheel steering mechanism for a remote control vehicle having a pair of front steering knuckles and a pair of rear steering knuckles operably connected to a vehicle chassis, comprising: a pair of steering actuators each having two-direction rotational output selectively regulated by radio-controlled components; a pair of front bell cranks each operably connected to one said actuator for simultaneous driven rotational movement by said actuators; an elongated front toe link dependently pivotally connected to each of said front bell cranks for lateral translation of said front toe link responsive to rotational output of said actuators; right and left elongated front tie rods each pivotally connected at an inner end thereof to a corresponding end of said front toe link, an outer end of each said front tie rod pivotally connected to a corresponding one of said front steering knuckles; an elongated center tie rod pivotally connected at a forward end thereof to one of said front bell cranks; a pair of rear bell cranks, one rear bell crank of said pair of rear bell cranks pivotally connected to a rearward end of said center tie rod; an elongated rear toe link dependently pivotally connected to each of said rear bell cranks for lateral translation of said rear toe link responsive to fore and aft translation of said center tie rod; right and left rear tie rods each pivotally connected at an inner end thereof to a corresponding end of said rear toe link, an outer end of each said rear tie rod pivotally connected to a corresponding one of the rear steering knuckles; whereby, when the front knuckles are rotated in a first steering direction by a rotational output of said actuators, the rear knuckles rotate in a second steering direction opposite to that of the front steering knuckles.