Abstract: A storage step stowable in a pair of storage compartment channels includes a plurality of treads including a top tread, a pair of forward stringers pivotally connected to or adjacent forward ends of the treads, and a pair of rearward stringers pivotally connected to or adjacent rearward ends of the treads. A sliding assembly coupled with the storage step is slidable in the storage compartment channels.

Abstract: A battery box attachable to a trailer frame includes a main compartment having a front, a back, and two sides, a base below the main compartment, and a sub-compartment disposed in the main compartment. The base and the main compartment define outer shoulders such that the two sides of the main compartment extend wider than a width of the base. A door is pivotally attached to the main compartment and is configured to close the sub-compartment. The door defines the one of the two sides. A battery box or junction box may include a compartment with a lid for enclosing wire connections and a grounding bar positioned in the compartment. The grounding bar serves as a battery ground, and the grounding bar secures the battery box or junction box through a compartment wall to the trailer frame. The overall assembly helps to simplify wiring between the batteries and the trailer.

Abstract: A folding bed system includes a bed frame having a head section, a center section, and a foot section. The center section is connected to first and second slide mechanisms, and the head section is connected to first and second guide mechanisms. The slide and guide mechanisms are connectable to opposed walls of a structure. In some embodiments, a hinge assembly for a folding structure includes a center post securable to the center section, and a connecting bracket movably coupled with the center post that is vertically displaceable on the center post between a down position and an up position. A forward bracket is secured at one end to the connecting bracket and is securable at an opposite end to the head section, and an aft bracket is secured at one end to the connecting bracket and is securable at an opposite end to the foot section.