Patent ID: 8491031

Claim:
A bed for a truck or trailer, comprising: a bottom; left and right side walls and a front wall extending from said bottom to a top edge defining a top opening, said left and right side walls also defining a rear opening having a width and height and a bottom edge, said rear opening being enclosed by a tailgate when the tailgate is in the closed position, said tailgate being movable to an open position for discharging material out the rear opening; a rigid cover extending from the left side wall to the right side wall at the top edge and extending from the rear opening forward toward the front wall, leaving an open space between the cover and the front wall of at least ten feet in the front-to-rear direction, said rigid cover being fixed to said left and right side walls and being separate from said tailgate; and a flexible flap which is a sheet extending downwardly from the rear of said rigid cover and across the width and height of said rear opening to a point beyond the bottom edge of said rear opening.