Abstract: A floor subframe construction for a sleeper cab of the type used in a tractor/trailer rig and adapted to be located behind the driver's cab and supported on the tractor frame. The sleeper cab has vertical exterior wall sections and a floor panel formed of metal sheet. The floor panel is supported on an exterior metal floor subframe that includes parallel front and rear main beams, a plurality of interior cross members extending perpendicular to and between the main beams, and exterior side members connected between the outer ends of the main beams. The main beams, cross members, and side members define coplanar supporting surfaces for the floor panel. Each of the beams has upper and lower horizontal flanges spaced apart and joined by a vertical web at the outer ends thereof to define an inwardly facing open channel.

Abstract: A hinge for a sleeper cab compartment door that pivots between open and closed positions about a generally vertical hinge axis. The door frame has a jamb adapted to support a butt hinge and the door has a hinge stile spaced from the jamb when the door is closed so that the respective jamb and stile surfaces are separated by an elongated gap that is closed on the outer side by an elongated skirt portion extending laterally from the front panel of the door an adapted to swing inward into the gap when the door is pivoted to its open position. The jamb leaf of the hinge has a longitudinal bend dividing it into two flat flanges angularly disposed relative to one another, one of the flanges being secured to the jamb and the other forming a bearing for the hinge pin.