Patent ID: 6470646
Filing Date: 2002-10-29
Classification: E04G

Abstract:
A roof scaffolding system, comprising:(a) at least two roof jacks laterally spaced apart from one another, each of said roof jacks including (i) a rigid support frame having a pair of lower ends laterally spaced apart from one another and an upper apex located above and between said lower ends, (ii) a pair of support blocks each attached to one of said lower ends of said support frame and being adapted to rest on one inclined surface of a roof such that said laterally spaced apart roof jacks are adapted to assume rest positions on the one inclined surface with said support frames thereof spaced above the one inclined surface, and (iii) a rigid bar having an elongated main portion and opposite front and rear end portions, said rigid bar at said rear end portion being rigidly connected to said upper apex of said support frame and formed as a hook-shaped element extending upwardly from said main portion such that said main portions of said rigid bars of said laterally spaced apart roof jacks are adapted to support an elongated board extending horizontally between said roof jacks and said hook-shaped elements of said rigid bars of said laterally spaced apart roof jacks are adapted to retain the board on said roof jacks, said rigid bar at said front end portion being formed as a transverse extending front attachment key; and (b) at least two support assemblies, each of said support assemblies being disposed adjacent to one of said roof jacks and including (i) an elongated support member extending under said support frame and between said support blocks of said one of said roof jacks and having a plurality of holes defined at locations spaced longitudinally along said support member such that a selected one of said holes at a time is adapted to receive said front attachment key on said rigid bar of said one of said roof jacks for holding said one roof jack at the rest position on the one inclined surface of the roof and astraddle said support member, said support member further having an upper end adapted to be disposed adjacent to a peak of the roof, and (ii) an attachment member mounted to said upper end of said support member and adapted to be secured to an opposite inclined surface of the roof and thereby retain said support member in a stationary position extending upwardly along the one inclined surface of the roof.