Adjustable platform for a rung ladder

Details Adjustable platform for a rung ladder Adjustable platform for a rung ladder

1988-04-14

1989-01-31

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder with vertically moving platform or escape

Ladder supports platform

182120, E06C 138

Patent

active

048009881

ABSTRACT:
An adjustable platform for a rung ladder has a footplate which provides sufficient surface area to enable full contact by the users feet. A footplate support system enables the footplate to accomodate a range of angles of inclination of the ladder relative to the horizontal. The footplate support system is releasably secured to two parallel guides running length wise of the ladder, either as part of extruded ladder stiles or secured to stiles of an existing ladder, and is adapted to slide up and down the guides to engage the footplate with the desired rung of the ladder. Clamp means is provided to locate the footplate in the desired position.

REFERENCES:
patent: 107225 (1870-09-01), Claflin
patent: 444280 (1891-01-01), Pepin
patent: 683890 (1901-10-01), Wolfe
patent: 715944 (1902-12-01), Bauer
patent: 767388 (1904-08-01), Cirigliano
patent: 788992 (1905-05-01), Bauer
patent: 2148958 (1939-02-01), Myers
patent: 2588959 (1952-03-01), Campbell

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