Rung assembly for a ladder and a method of making the rung assem

Details Rung assembly for a ladder and a method of making the rung assem Rung assembly for a ladder and a method of making the rung assem

1975-06-30

1977-07-19

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

With insulation

182228, E06C 750

Patent

active

040363252

ABSTRACT:
The rung assembly is made of two piece construction and of metal while the siderail is made of a reinforced plastics material. The rung assembly includes a rung having a hollow end and a flanged fitting which is secured over the hollow end of the rung by swaging of the hollow end and fitting under a longitudinally applied compressive force. The compression force forms peripheral beads on the rung and fitting which interlock with each other. The rung assembly is secured to the siderail by any suitable fastening means such as rivets, bolts and the like which pass through the flange of the fitting and siderail.

REFERENCES:
patent: 695614 (1902-03-01), Lape
patent: 2455946 (1948-12-01), Peters
patent: 2511077 (1950-06-01), Race
patent: 3477120 (1969-11-01), Werner
patent: 3502173 (1970-03-01), Arnold

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