Automatically retractable, rotatable step assembly

Details Automatically retractable, rotatable step assembly Automatically retractable, rotatable step assembly

1984-08-03

1985-09-24

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Wall- or floor-attached

Independent rung or step

182100, 182189, E06C 904, E06C 708, B60R 302

Patent

active

045428050

ABSTRACT:
An automatically retractable pivotal step assembly is used on scaffolding and storage structures, particularly in a warehouse environment. The automatic retractability feature is particularly important in keeping the step assembly from being struck and broken off by loading equipment, or causing injury to workers or damage to material being transported by loading equipment.
The step assembly is pivotally secured to a stanchion member of the storage rack structure at a selected height to permit a warehouse worker to ascend to a second or higher level of the storage structure and then be automatically returned and stored in a retracted position behind the stanchion member when not being used. Several step assemblies may be vertically aligned on the stanchion in combination at increasing heights to permit access to multiple levels of the structure.

REFERENCES:
patent: 438036 (1890-10-01), Verstraete
patent: 1090852 (1914-03-01), Hieronymus
patent: 1852430 (1932-05-01), Newcastle
patent: 2678832 (1954-05-01), Wright
patent: 3019851 (1962-02-01), Doss
patent: 3259209 (1966-07-01), Brown
patent: 3986503 (1976-10-01), Le Guillon
patent: 4029355 (1977-06-01), Wilhelmsen
patent: 4132288 (1979-02-01), Bingham
patent: 4402385 (1983-09-01), Buche
patent: 4432436 (1984-02-01), Suiter

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