Folding foot step

Details Folding foot step Folding foot step

1983-01-07

1984-07-31

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Wall- or floor-attached

Independent rung or step

280166, B60R 302

Patent

active

044624867

ABSTRACT:
A new and improved folding step especially useful on trucks or rail transit vehicles. The folding step includes a support bracket, a step member pivoted to the bracket, and a spring urging the two together and into one of two pivoted positions. The step member has parallel arms that straddle a box-like portion of the bracket. Stub shafts extend from the arms into the bracket through slots and carry cams that are urged into contact with the bracket by the spring. The cams and spring provide an over-center snap action between the step member and bracket.

REFERENCES:
patent: 120517 (1871-10-01), Henry
patent: 865375 (1907-09-01), Frye
patent: 1917336 (1933-07-01), Spitz
patent: 2158949 (1939-05-01), Sarles
patent: 2653036 (1953-09-01), Creel
patent: 2678832 (1954-05-01), Wright
patent: 3068958 (1962-12-01), McCann
patent: 3627350 (1971-12-01), Cross
patent: 3716254 (1973-02-01), Tarvin
patent: 3986503 (1975-09-01), Le Guillon
patent: 4029355 (1977-06-01), Wilhelmsen
Catalog, Eberhard Manufacturing Co., Section 6, p. 3, 1978, Cleveland, Ohio.

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