Patent ID: 9004519
Filing Date: 2015-04-14
Classification: B60D,B62D

Abstract:
1. A trailer steering system comprising: a conventional, unmodified trailer hitch receiver on a tow vehicle, a tow bar having a conventional, unmodified trailer hitch at one end and configured to removably connect to said conventional, unmodified trailer hitch receiver of said tow vehicle, a switchable coupling connected to the other end of said towbar, said switchable coupling having a pivot axis mounted to said trailer about which said switchable coupling pivots in horizontal pivoting relation with respect to said trailer responsive to sideways displacement of said towbar as said trailer is being towed or backed, said switchable coupling further comprising a carriage movable through said pivot axis between a first position selected to steer steered wheels of said trailer when said trailer is moving in a forward direction, and a second position selected to steer said steered wheels of said trailer when said trailer is being backed, at least one steering link coupled between said switchable coupling and a steering arm of steered wheels of at least one axle of said trailer.