Reversible folding ladder

Details Reversible folding ladder Reversible folding ladder

1993-07-20

1994-11-22

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Wall- or floor-attached

Retractable or collapsible beneath floor, track-mounted

182 96, 182 97, 182129, 182127, E06C 500

Patent

active

053660528

ABSTRACT:
This invention relates to a reversible folding ladder which is composed of a ladder, two steel channels, a front frame and a rear frame. More particularly the ladder is composed of a front staircase and a rear staircase. There is a plurality of foot pedals hinged on both the front staircase and the rear staircase and the top of both the front staircase and the rear staircase is hinged on the front frame. Furthermore the front frame is connected with the rear frame by a pivot rod and can be reversed. A connecting part of the rear frame and the pivot rod can be rotated. When unfolding the reversible folding ladder to contact the ground, each foot pedals is arranged parallel with the front frame. Furthermore when the reversible folding ladder is rotated to a position parallel with the front frame, the rear staircase can be received into the front staircase. Under this condition, the reversible folding ladder can be turned around to make the rear staircase be positioned above the front staircases, then rotated to contact with the ground by means of the rotating part of the rear frame. In the condition, the ladder can be used as a conveyor device for transporting goods by way of rollers or a conveyor belt carried by the rear staircase.

REFERENCES:
patent: 3291255 (1966-12-01), Glatfelter

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