A mechanism to connect a second unpowered vehicle to a first powered vehicle for the purpose of towing the second vehicle over all types of terrain, and in particular, a coupling mechanism that is self locking at primary and secondary levels upon connection of first vehicle to the second vehicle.

摘要

#$%^&*AU2017101354A420171109.pdf#####Abstract A coupling device for coupling a first vehicle provided with its own motive power to a second towed vehicle, the coupling device consisting of the following elements :a post (1) attached to the first towing vehicle, a coupling body assembly which fits over the said post, and which consists of coupling body (3), twospring loaded latching bars (14a,14b), rotary operating cap (18), and connection yoke (6) connecting the said coupling body to the second towed vehicle by means of the hitch body (11). The locking of the coupling to the said post is by means of the said latching bars closing over a sharp lip feature on the said post, and the subsequent spring-powered rotation of said rotary operating cap causing the internal trackfeatures of the said rotary cap to lock the said latching bars into the closed position thus providing automatic primary locking of the said coupling body to the said post.r.D