US Patent 7293813 Double jointed hinge and foldable deck using same

A foldable deck for supporting cargo in a freight compartment is provided. The foldable deck includes a pair of deck panels connected by a double jointed hinge. The foldable deck is mounted on one of the side walls of the freight compartment and is capable of movement between a secure upright position and an extended horizontal deployed position. When the deck panels are in their deployed position they at least partially define a platform above the floor of the vehicle freight compartment. The double jointed hinge has a hinge member having a pair of pivot pins and slot pins that alternate between a deployed position and an upright position. The free end rests upon a channel or catch rail on the free wall opposite the attachment wall.