TELESCOPING CONTAINER BODY FOR DUMP TRUCK

摘要

A dump truck having a telescoping container body which is initially telescoped to a reduced length to discharge a portion of the load and thereafter elevated to discharge the remainder of the load in the manner of a conventional dump truck. The front section of the container body is longer than the back section so that a portion of the front section will project rearwardly from the back section when the sections are located in the retracted position whereby the centre of gravity of the telescoped sections is more than that of the back section alone when the telescoped sections are elevated for dumping. The drive mechanism for driving the front and back section relative to one another consists of a rack mounted on the front section and a reciprocating drive means mounted on the truck. A pawl is mounted on the drive mechanism and engages the rack to selectively push or pull the front section as required. The length of the stroke of the drive mechanism is substantially shorter than the total length of movement of the sections between the extended and retracted positions thereof.