Step axle for escalator

Details Step axle for escalator Step axle for escalator

1991-05-24

1993-06-15

Dayoan, D. Glenn

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

By stairway having steps forming an endless member

198327, B66B 2300

Patent

active

052190609

ABSTRACT:
The step axle of an escalator is made with an inner, higher strength core piece and an outer, lower strength sleeve. The core is telescoped into the sleeve with opposite ends of the core projecting beyond corresponding outer ends of the sleeve. The step chains and step chain rollers are mounted on the harder outer ends of the core. The higher strength of the core prevents deformation of the composite axle from stresses imparted to the ends of the axle by the chains and rollers. The sleeve with its reinforcement of the core prevents the axle from bending in its center section when loads from the escalator steps are transmitted to the step axle from passengers on the escalator.

REFERENCES:
patent: 951744 (1910-03-01), Seeberger
patent: 1020060 (1912-03-01), Seeberger
patent: 2292534 (1942-08-01), Margles
patent: 3789972 (1974-02-01), Kraft
patent: 4726463 (1988-02-01), Babler

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