Truck body with integrated conveyor system

In a dump truck having a longitudinally extending truck frame, a dump body pivotally mounted at the rear end thereof on the truck frame, a lift cylinder connected between the truck frame and forward end of the dump body for raising and lowering the dump body between a lower normal position thereof resting on the truck frame and an upper raised position thereof, the dump body forming a receptacle with a rear tailgate opening and having a tailgate movable between a closed position closing the tailgate opening and a flat open position providing a rearward extension of the dump body receptacle for open truck hauling and latching means for latching the tailgate in its closed position, the dump body having a bottom structure, providing the floor of the dump body receptacle, with a longitudinally extending endless conveyor structurally integrated therein for conveying the material contents of the dump body receptacle rearwardly for being discharged off the rear end of the conveyor, the dump body having a conveyor hood, in longitudinal alignment with the conveyor, with a conveyor door adjustable, for controlling the rate of said discharge off the rear end of the conveyor, between an open position thereof providing a conveyor opening for and aligned with the conveyor and a closed position thereof closing the conveyor opening, and door operating means for opening and closing the conveyor door from the rear of the tailgate;

• the improvement wherein the tailgate has a conveyor hood opening therein in longitudinal alignment with the conveyor and wherein the dump body comprises means for mounting the conveyor hood for being longitudinally shifted within the hood opening between a forward extended position thereof covering the rear end of the conveyor and a rearward retracted position thereof retracted, at least in part, into the hood opening.

In a dump truck having a longitudinally extending truck frame, a dump body pivotally mounted at the rear end thereof on the truck frame and forming a receptacle with a rear tailgate opening, a lift cylinder connected between the truck frame and the forward end of the dump body for raising and lowering the dump body between a lower normal position thereof resting on the truck frame and an upper raised position thereof, the dump body having a bottom structure, providing the floor of the dump body receptacle, with a longitudinally extending endless conveyor structurally integrated therein for conveying the material contents of the dump body receptacle rearwardly for being discharged off the rear end of the conveyor, the dump body having a conveyor hood for covering the rear end of the conveyor and operable for controlling said discharge off the rear end of the conveyor, a tailgate pivotal between a closed position thereof closing the tailgate opening and an open position thereof and latching means for latching the tailgate in its closed position;

• the improvement wherein the tailgate has a conveyor hood opening therein in longitudinal alignment with the conveyor, and wherein the dump body comprises means for mounting the conveyor hood for being longitudinally shifted within the hood opening between a forward extended position thereof covering the rear end of the conveyor when the tailgate is in its closed position, and at least one rearward position thereof, rearwardly of said forward extended position, for controlling said discharge off the rear end of the conveyor when the tailgate is in its closed position.