Escalator step axle attachment assembly

Details Escalator step axle attachment assembly Escalator step axle attachment assembly

1993-06-28

1994-10-04

Gastineau, Cheryl L.

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

By stairway having steps forming an endless member

198333, B66B 2312

Patent

active

053518004

ABSTRACT:
Escalator steps are attached to their step axles by means of C-shaped clamps which are pivotally mounted on the steps and rotatable thereon to clamping positions where they embrace and clamp the step axles to the steps. One end of the clamp is then bolted to the step so that the clamp pivot pin and bolt will secure the clamps against the step axles. A cam profile is formed on a finger on the clamp, which cam profile guides the step axles into engagement with the step and clamp. A wrench-guiding tube is fixed to the step above the clamp bolt to hold the latter on the step and to ensure engagement between the bolt and an Allen wrench or other tool inserted through the step tread to bolt the clamp in place.

REFERENCES:
patent: 1610411 (1926-12-01), Baker
patent: 2033308 (1936-03-01), Shonnard
patent: 2114805 (1938-04-01), Margles et al.
patent: 3789972 (1974-02-01), Kraft
patent: 4726463 (1988-02-01), Babler
patent: 5072821 (1991-12-01), Kruse et al.

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