Folding step for mounting above an interior corner between a wal

Details Folding step for mounting above an interior corner between a wal Folding step for mounting above an interior corner between a wal

1993-09-15

1994-10-25

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Wall- or floor-attached

Independent rung or step

182 35, 3122351, F06C 906

Patent

active

053580672

ABSTRACT:
A folding step assembly is attached to a wall at a predetermined height above a floor and is movable from a stowed position to an operative position. The step assembly includes a step member providing a step surface between an inner and outer edge, an inner hinge attaching the inner edge of the step member to the wall or wall recess at a desired height, a brace having an inner edge and an outer edge, an outer hinge attaching the outer edge of the step member to the inner edge of the brace, and a stop for limiting the angle between the step member and the brace to thereby maintain the brace at an acute angle relative to the step member. In the stowed position, the brace is substantially parallel to the step member and the step member is substantially parallel to the wall or the inside of the wall recess. In the operative position, the step member is substantially parallel to the floor and the brace is maintained at an acute angle relative to the step member with the outer edge of the brace extending into an inside corner defined by the wall and the floor.

REFERENCES:
patent: 1953298 (1934-04-01), Goodwing
patent: 2158949 (1939-05-01), Sarles et al.
patent: 3030166 (1962-04-01), Richards
patent: 3136386 (1964-06-01), Horvath et al.
patent: 3166277 (1965-01-01), Brison
patent: 3833089 (1974-09-01), Backwell
patent: 4191388 (1980-03-01), Barksdale
patent: 4973017 (1990-11-01), Takagi
patent: 5085290 (1992-02-01), Guirlinger
patent: 5094515 (1992-03-01), Low
patent: 5131492 (1992-07-01), Caminiti

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