Patent ID: 7832151
Filing Date: 2010-11-16
Classification: E04B

Abstract:
1. A prefabricated building structure comprising a floor structure and vertical side walls secured to said floor structure along an outside perimeter thereof, at least two of said side walls being opposed parallel load bearing side walls, each said opposed parallel load bearing side walls having a horizontal top plate extending therealong, two roof sections having a plurality of spaced rafters held together in spaced-apart relationship and pivotally connected by pivot connections to said top plate of a respective one of said opposed parallel load bearing side walls, said roof sections being interconnectable to one another by connecting means when said roof sections are disposed angularly upwards to form a raised pitch roof structure, leverage beam slidingly retained in close sliding fit within at least a lower portion of one of said rafters which is at least partly a hollow structural rafter located in a predetermined region of each said roof sections, said leverage beam having a lower leverage section extending out of said lower portion of said hollow structural rafter with a force transmitting section maintained in said hollow structural rafter, and a force exerting means connectable to a free end portion of said lower leverage section of said leverage beam to cause said roof sections to be raised or lowered on their said pivot connections to form said raised pitch roof structure or a collapsed roof structure for transport of said prefabricated building structure.