Abstract: A cover includes multiple panels pivotally connected together and foldable between a stacked arrangement and a deployed arrangement. Side rails are attachable to opposite sides of the cargo box and include ledges. The stack can be rotated between an intermediate position and an upward position in which the stack extends above the plane with the upper surface of at least one section disposed at an angle intersecting the plane. A slidable member can slide along a side rail and support a cam lock mechanism moveable between locked and unlocked positions. A link arm can be coupled between the slidable member and the stack to require movement of the slidable member longitudinally along the side rail in response to movement of the stack between the intermediate position and the upward position.

Abstract: A cover includes multiple panels pivotally connected together and foldable between a stacked arrangement and a deployed arrangement. Side rails are attachable to opposite sides of the cargo box and include ledges. The stack can be rotated between an intermediate position and an upward position in which the stack extends above the plane with the upper surface of at least one section disposed at an angle intersecting the plane. A slidable member can slide along a side rail and support a cam lock mechanism moveable between locked and unlocked positions. A link arm can be coupled between the slidable member and the stack to require movement of the slidable member longitudinally along the side rail in response to movement of the stack between the intermediate position and the upward position.

Abstract: A plurality of pivotably connected slats can be movable between a closed position wherein the slats cover the vehicle box, and an open position. At least one slat can include a first and second end fittings having first and second fixed locking elements, respectively. Each of first and second side rails can include a movable locking element movable between a locked position in which the movable locking elements in the closed position engage an adjacent one of the fixed locking elements to restrict movement of the at least one slat away from each side rail, and an unlocked position in which the movable locking element is disengaged from the adjacent one of the fixed locking elements allowing movement of the at least one slat toward the open position.

Abstract: A plurality of pivotably connected slats can be movable between a closed position wherein the slats cover the vehicle box, and an open position. At least one slat can include a first and second end fittings having first and second fixed locking elements, respectively.

Abstract: A cover assembly for a vehicle box having a plurality of slats with each slat pivotally connected to at least one adjacent slat and end fittings attached to opposite ends of each of the plurality of slats. Side rails are attachable to the vehicle box. Locking elements associated with each side rail are movable to engage and hold the end fittings onto the side rails. The locking element including a hook on a roll rod pivotally positioned within an arc section of the side rail. The roll rod is movable from a first position wherein the hook projects into a slot in the end fittings to a second position wherein the hook is withdrawn from the slot.

Abstract: A roll up cover for a box of a pick-up truck includes a plurality of substantially rigid slats connected by hinge joints. A flexible sheet of material is attached to the top surface of the slats. The hinge joints include a stop which allows pivoting of adjacent slats only in a direction moving the top surfaces of the slats towards each other, to allow the cover to be rolled up with flexible sheet facing inwardly, and with bottom surfaces of the slats facing outwardly, and not vice versa. Side rails are attached to the box of the pick-up truck. A roll rod in each side rail pivots into closed position when the cover is unrolled, with the roll rods engaging the end fittings on the slats, to hold the cover down onto the side rails.