Fire escape – ladder – or scaffold – Convertible – Ladder
Patent
1988-08-08
1990-08-28
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Convertible
Ladder
182167, 182119, E06C 139, E06C 716, E06C 750
Patent
active
049517805
ABSTRACT:
A combination folding ladder and height adjustable scaffold, comprises (a) a first assembly including a first leg and a second leg, each formed by an outer and inner telescoping member, and outer and inner rungs which connect the outer and inner telescoping members in substantially parallel, spaced apart relation; (b) a second assembly including a third leg and a fourth leg, each formed by an outer and inner telescoping member, and outer and inner rungs which connect the outer and inner telescoping legs of the third and fourth legs in substantially parallel, spaced apart relation; (c) positioning joints removably secured to upper ends of the for pivotally securing the first and second assemblies together; (d) a height adjustment assembly for varying the heights of the legs; and (e) a scaffold platform for use with the combination when the positioning joints are removed from the legs and the first and second assemblies are separated, the scaffold platform including a flat rectangular board, U-shaped supports at the opposite short ends for defining channels for receiving any of the rungs at a first vertical level, and a plurality of hook arms pivotally secured to the underside of the board and having hook ends for receiving any of the rungs at a second vertical level, such that a stable scaffold is provided by the first assembly, the second assembly separated therefrom and the scaffold platform connecting together the first and second assemblies.
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