Patent ID: 9056575
Filing Date: 2015-06-16
Classification: B60P

Abstract:
1. An expansible body structure for recreation vehicles, comprising: an expandable nesting slide-out assembly comprising a smaller volume slide-out chamber and a larger volume slide-out chamber which snugly nest into each other, the nesting slide-out chambers having a means for mounting within a rigid body shell enclosure comprising at least two sidewalls each having a large sidewall opening for the slide-out chambers to extend through, the rigid body shell enclosure having spring loaded flaps mounted longitudinally at the top edges where the top of the sidewall openings and the roofs of the slide-out chambers meet, the nesting slide-out assembly having a means to extend the slide-out chambers from a retracted position to an extended position to provide a larger living area in the larger volume chamber, the nesting slide-out assembly having a means to retract the slide-out chambers from an extended position to a retracted position to reduce the overall width of the nesting slide-out assembly to the same width of the rigid body shell enclosure, the smaller volume slide-out chamber comprising a plurality of walls to provide an interior living space, a floor, a top opening for the installation of a rigid slanting roof unit, and a plurality of transversely mounted v-groove channels on the outside bottom surface of the floor as guides for extending and retracting of the smaller slide-out chamber the plurality of walls of the smaller slide-out chamber comprising an interior wall with an opening for egress, an exterior wall facing outside of the recreational vehicle having an opening for egress, and two sidewalls, the interior wall of the smaller slide-out chamber having a means to provide separate living spaces for the larger and smaller slide-out chambers, the larger slide-out chamber comprising a plurality of walls to provide an interior space with one side opening for nesting with the smaller volume slide-out chamber, having an exterior wall facing outside of the recreational vehicle with an opening for egress, two sidewalls, a floor and a top opening for the installation of a rigid slanting roof unit, and a plurality of transversely mounted v-groove channels on the outside bottom surface of the floor as guides for extending and retracting of the larger slide-out chamber, the larger slide-out chamber having a raised platform comprising a larger surface area mounted on top of a base having a smaller footprint compared to the larger surface area, the raised platform is installed on the floor of the larger slide-out chamber at the base of the exterior wall, opposite to the opening nesting with the smaller volume slide-out chamber, the base of the raised platform is permanently affixed onto the floor of the larger volume chamber, the raised larger surface area of the platform having an offset from the base with a height enough to provide sufficient clearance for the floor of the smaller volume slide-out chamber to tuck under when the slide-out chambers are in the retracted positions, a carriage assembly having a plurality of wheels and a plurality of supporting floor structure members having longitudinally mounted, low friction support members for supporting the rigid body shell enclosure and for reducing the sliding friction when the slide-out chambers are extended and retracted, the expansible body structure for recreational vehicles can be a part of a towable trailer, or part of a motorized recreational vehicle having a driving cab area, abutting to one set of adjacent sidewalls of the slide-out chambers, for the vehicle operator to operate the vehicle.