Steerable trailer assembly

Details Steerable trailer assembly Steerable trailer assembly

B - Operations, Transporting

62

D

280/145

B62D 13/00 (2006.01)

Patent

CA 1170289

ABSTRACT OF THE DISCLOSURE Disclosed is a self-supporting trailer having at least a pair of rear wheels and a steerable and casterable front wheel with the weight of the trailer being substantially equally divided among the wheels. The front wheel is carried for turning movement by a yoke which is secured to the trailer frame by leaf springs. The leaf springs provide rigid and lateral stability between the yoke and frame and enable vertical movernent of the frame relative to the yoke. The steerable wheel is carried by a fork pivotally coupled to the yoke. A drawbar is bifurcated at its rearward end for connection to the yoke arms and pivotal movement about a horizontal axis. The opposite end of the draw- bar carries a tongue mounting a hitch for connection to the towing vehicle and a steering arm carried by the fork whereby the steering wheel tracks the turning movement of the towing vehicle. The hitch connection with the towing vehicle and the horizontal pivotal axis of the drawbar and yoke define a plane and the pivotal connections at opposite ends af the steering link are maintained in this plane throughout the range af angularity of the drawbar resulting from any difference in elevation between the towing vehicle and the trailer. With the foregoing construction, vertical loading of the towing vehicle from the trailer is substantially minimized or eliminated and lateral stability is assured by the steering and casterable front wheel of the trailer.

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