Patent ID: 6336683
Filing Date: 2002-01-08
Classification: B62D

Abstract:
In a dump trailer unsuitable for driving over public roads, said dump trailer having an engine for providing motive power at an off-public-road dump site, a control station, a dump box, means for dumping contents of the dump box, and means for selectively connecting the dump trailer to a connection fixture on a towing vehicle so that the dump trailer may be towed to the dump site over public roads, and thereafter driven at the dump site to effect dumping of the contents of the dump box, the improvement wherein said connecting means comprises:a towing bar pivotably connected at one end to the front of the dump trailer for both horizontal and vertical pivoting and being adapted at the other end for connection to a connection fixture of a towing vehicle by downward movement into a predetermined position with respect to the towing connection fixture, the horizontal pivoting of said towing bar facilitating towing of the dump trailer around curves in the public road and facilitating connecting the dump trailer to a towing vehicle at the dump site when the dump trailer and the towing vehicle are horizontally offset at the time of connection; and the vertical pivoting of said towing bar allowing upward movement of the bar to a first position non-interfering with the operation of the dump trailer at the dump site and downward movement of the bar to a second position effecting a connection to the towing vehicle even when the dump trailer and towing vehicle are not on level ground.