B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
298/1, 280/133
B62D 53/06 (2006.01)
Patent
CA 1038902
ABSTRACT OF THE DISCLOSURE A hitch extends between a towing vehicle such as a tractor, and a trailer includes an upper hitch and a lower hitch together with a releasable latch means holding one against the other. When released, back up of the towing vehicle and, if necessary, applying the brakes of the trail- er, tilts the trailer rearwardly and continued backing up tilts the trailer over through nearly 180° for full dump- ing. When the towing vehicle is moved forwardly the trailer returns to the towing position and the latch means may be re-engaged between the upper and lower hitches. The latch means includes linkage means between a clevis and the lower hitch assembly normally held in the towing position and in engagement with the end of the upper hitch. It is held in position by means of tension springs. A cable release moves the clevis after engagement with the end of the upper hitch against pressure of the springs, thus releasing the upper hitch. A roller in the clevis in conjunction with the end of the upper hitch enables the upper hitch to re-engage the clevis automatically when the trailer returns to the towing position.
252277
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