Patent ID: 6796590
Filing Date: 2004-09-28
Classification: B60P

Abstract:
In a support system for expanding and retracting a slide-out room of a recreational vehicle having a floor movable between an expanded position and a retracted position, said support system including extendable and retractable rails fixed to the room for expanding and retracting the room, rollers for supporting the rails relative to a fixed support and a drive system for moving the rails in and out, the improvement wherein each said rail fits at least partially within the thickness of a floor of said room, wherein each said rail has a top wall which is generally parallel to said floor of said room, at least one side wall depending from the top wall, and at least one flange extending inwardly from the side wall spaced from and generally parallel to the top wall, said flange having an inner edge with a space adjacent the inner edge, and said fixed support extends upwardly through said space and mounts rollers which roll between said top wall and said flange inside of said rail.