Patent ID: 7396064

Claim:
A collapsible enclosure adapted to be appended to a vehicle body at an access opening in the vehicle body and at a ramp, the ramp being adapted to provide ingress to and egress from the interior of the vehicle body from and to the surface on which the vehicle body rests through the access opening when the collapsible enclosure is not appended to the vehicle body and further adapted to be supported above the surface on which the vehicle body rests and provide a floor for the collapsible enclosure when the collapsible enclosure is installed at the ramp; the collapsible enclosure having a rearward end adapted to be located at the access opening in the vehicle body and a forward end adapted to be located away from the access opening in the vehicle body, both the height of the rearward end above the ramp and the width of the rearward end across the width of the access opening being adjustable, whereby the rearward end of the collapsible enclosure may be adjusted to conform to the height and width of the access opening; and the interior of the collapsible structure is adapted to be open to the interior of the vehicle body through the access opening in the vehicle body.