US Patent 7396064 Vehicle ramp room

A collapsible enclosure is appended to a vehicle, such as a cargo type trailer, for example, for the purpose of providing living space in association with the vehicle. The vehicle includes a ramp that offers ingress to and egress from the interior of the vehicle through an access opening in the body of the vehicle for loading and unloading the vehicle, and the collapsible enclosure is appended to the vehicle at the access door opening and the ramp. Access to the interior of the collapsible enclosure can be had from the interior of the vehicle through the access opening. The size of the collapsible enclosure is adjustable so that the enclosure may be used with vehicles having ramps and access openings of different sizes. The ramp, which can be supported in a position substantially parallel to the surface on which the vehicle rests, serves as the floor of the additional living space that is created within the collapsible enclosure.