Abstract: The load carrying truck bed tonneau cover described herein and depicted in the included figures may be secured to the bedrails of a pick-up truck, or the chassis of a truck, and includes an easily installed cargo deck frame assembly that is affixed to the upper portion of the bed rails of the truck bed box for supporting a cargo deck assembly engaged with the cargo deck frame assembly by means of a cam assembly of a plurality of movable cams to provide a generally rigid tonneau cover and a selected locking assembly.

Abstract: A convertible and configurable cargo system for integration with pick up bed (or truck chassis): a bed rail assembly, support joists, jacks, and cargo deck. The cargo assembly frame consists of longitudinal supports and transverse joists. It has attachable wheels for rolling cargo in and out of the truck bed. With trailer tongue attachment it also serves as a utility trailer. The cargo deck is comprised of removable panels that are installed on the support joists that also may provide channels for carrying water away from the truck bed below. The removable panels are further covered with an elastomeric material to provide weather protection. For the removal of items in the bed of the truck, the panels have lift up doors with waterproof seals.