Patent ID: 6243992
Filing Date: 2001-06-12
Classification: B60P,E04B

Abstract:
An expandable and collapsible mobile structure comprising:a central structure having a floor, a roof, front and rear end walls, and at least one longitudinal side wall that is movable out from the central structure;foldable floor sections hinged to a bottom edge of the longitudinal side wall and a bottom edge of the central structure, and foldable roof sections hinged to a top edge of the longitudinal side wall and a top edge of the central structure, said foldable floor sections and foldable roof sections being adapted to be unfolded as the longitudinal side wall is moved out from the central structure; andfront and rear side walls hinged to respective outermost side edges of the front and rear end walls of the central structure;wherein in an expansion operation, the front and rear side walls are adapted to initially swung out perpendicular to the longitudinal side wall and positioned by ground supports; andwherein top and bottom portions of inner sides of the front and rear side walls are provided with rails, and top and bottom portions of front and rear side edges of the longitudinal side wall are provided with respective guide members which are movably journalled on said rails.