Patent ID: 6746037
Filing Date: 2004-06-08
Classification: B60D

Abstract:
A trailer hitch for connecting a tow vehicle to a trailer, said trailer hitch comprising:a frame; at least one generally vertical track attached to said frame; a carriage; at least one slide block assembly attached to said carriage, said slide block assembly configured for slidable movement in said track; at least one stop operably connected to said track, said stop limiting vertical movement of said slide block assembly with respect to said track; a spherical rod-end assembly including at least one pair of rods, each of said rods rotatably connected between said frame and said carriage to permit relative movement therebetween; and at least one air spring having continuously variable pressure, said air spring having a first end and a second end, said first end operably connected to said frame and said second end operably connected to said carriage, said slide block assembly engaging said track for slidable movement therein when one of said frame and said carriage is attached to a tow vehicle and the other of said frame and said carriage is attached to a trailer, said at least one air spring and said movement of said at least one slide block assembly providing multi-directional dampening to reduce transmission of relative motion between said tow vehicle and said trailer.