Abstract: A locking system is installed inside a truck work body such as a service body. A linear actuator drives a sliding member longitudinally between locked and unlocked positions. The sliding member is supported by slide bearings. A spring may bias the sliding member toward the unlocked position. Locking catches are secured on the compartment doors of storage compartments of the truck work body. Locking members protruding from the sliding member engage the locking catches in the locked position, and disengage from the locking catches in the unlocked position. The actuator may be wirelessly activated by a transmitter key fob. The actuator is mounted by tamper-resistant fasteners that are accessible and removable from the exterior of the work body, to release the actuator and unlock the system in the event of an actuator failure. A single actuator locks all compartments on one side of the work body.

Abstract: Cargo trailer kit containing pre-fabricated ready-to-assemble modular components for a cargo trailer. The cargo box is assembled from a chassis with pre-installed floor, a plurality of wall panels, and a roof panel. Wall panels are captured top and bottom in two channels, one extending around the perimeter of the chassis and one around the perimeter of the roof panel, and secured via threaded fasteners to the chassis and roof frames. Trim pieces are attached to wall panels to seal joints between abutting panels. Signal lights are incorporated into appropriate components. A pre-assembled wheel assembly and a tow assembly are included in the kit, plus a wire harness for connecting the signal lights to the tow vehicle power supply. The cargo trailer is easily assembled with general assembly tools. The cargo trailer kit allows a complete cargo trailer to be shipped in a stackable, compact bundle.