Patent ID: 7137643

Claim:
An anti-sway trailer hitch assembly 10 for articulately connecting a towing vehicle 80 to a towed vehicle 90 , comprising: a hitch frame 20 having a forward end for connection to the rear of said towing vehicle rearward, a rearward end having a roller 28 in pivotal connection to said hitch frame 20 by a pivotal connection 28 a ; wherein the hitch frame has a first pivot point, and a second pivot point, a center beam 30 having a forward end 30 a in pivotal connection to said hitch frame 20 first pivot point by a connection 31 , said connection allowing said center beam to swing laterally around said connection; wherein the center beam has a central portion 30 b , and a rearward end 30 c, a center shaft 34 in pivotal connection to said center beam central portion 30 b by a connection 35 , said connection allowing said center shaft to rotate vertically in said center beam 30 , a hitch beam 60 having a forward end 60 a in pivotal connection to said hitch frame 20 second pivot point by a connection 61 , said connection allowing said hitch beam to swing laterally around said connection; said hitch beam has a central portion having a slot 62 , and a rearward end 60 c having a connecting point 64 a, a connection point 94 a on on a forward end said towed vehicle in pivotal connection to said connecting point 64 a on said hitch beam 60 rearward end by a connection, a slot 37 rigidly attached to the center shaft 34 , said roller 28 on said hitch frame 21 positioned in said slot 37 , an arm 44 rigidly attached to said center shaft, a roller 46 in pivotal connection to said arm 44 by a pivotal connection 46 a , said roller 46 positioned in said slot 62 on said hitch beam 60 , a center beam-extension 50 having a forward end 50 a in pivotal connection to said center beam 30 rearward end 30 c by a pivotal connection 51 , said connection allowing said center beam-extension to swing an arc vertically around said connection; said center beam having a mid-section 50 b and a rear section 50 c having a front-end and a rear-end, said rear section 50 c in a slide-able connection to said mid-section 50 b forming a variable-length member, said rear section 50 c rear-end having pivotal connection to a rear support 70 by a pivotal connection 71 , said rear support 70 affixing firmly to a frame or body of said towed vehicle.