TRACTOR OPERATED TRAILER HITCH IN WHICH BENDING LOADS ARE SUBSTANTIALLY ELIMINATED FROM THE VERTICAL STRUT

摘要

In accordance with the present invention a tractor operated hitch is provided including a vertical strut and a diagonal strut, each connected to the hitch head and which provide the sole support for the hitch head. A bumper block assembly is pivotably mounted about the hitch head which depends from and extends outwardly from the hitch head in a direction away from the diagonal strut a distance sufficient to locate a bumper within the induRtry standard distance above the deck. On the opposite side of its pivot point the bumper block assembly is connected to a diagonal strut linkage which, upon application of sufficient force by the tractor to the bumper, will pivot the bumper bloch; assembly about its pivot point and disconnect the diagonal strut linkage from an upright, engaged position t:o a retracted position on the deck. The vertical strut is provided with a bumper block assembly slot located between transversely spaced vertical legs or in a transverse wall portion whereby in retracted position the hitch and the bumper block assembly do not extend more than six (6) inches above the deck. This allows other tractors and trailers to pass over the retracted hitch and complies with the inudstry standard concerning tractor operated hitches in the retracted position. Since bending loads are substantially eliminated from thevertical strut, the vertical strut can be made of thinner, lighter material.