Automatic trailer hitch system

Abstract

A fully integrated, three-stage automatic weight distributing hitching system for a trailer and towing vehicle which utilizes a funnel-shaped receiver system (100), a head assembly (D) with elongated shank (160), spring bars (C) and chains (B), and a motorized electromechanical screw-driven piston device (382). The receiver, mounted on the Pear of the towing vehicle, is equipped with spring loaded dogs (140) which drop into machined recesses (240) of the shank when shank is inserted into the receiver, locking the shank in place and creating a secure coupling of the trailer and the towing vehicle. Solenoids (120) are affixed to the outside of the receiver and, when activated, will retract the spring-loaded dogs from the shank, and allow for uncoupling. The forward end of the receiver is fitted with a male portion of an electrical plug (180). The pivotable head assembly with ball (E) and shank extends from the trailer tongue (A). A tunnel (170) has been machined out along the length of the shank to house a cord (280) and a female portion of an electrical plug (220) which mates with the male plug in the receiver when inserted, and provides instant automatic connection of the electrical system between the trailer and the towing vehicle. The piston device is transversely mounted on the trailer tongue. Triangular cams (366) affixed to the ends of the piston device, cam support brackets (364) mounting brackets (350), and draw chains (B) produce tension and load-transferring capabilities of the spring bars when cams are rotated upward. These cams, when rotated downward, release the tension on the bars.

Dependencies are inferred from the claim text.