Escalator combplate stop switch assembly

Details Escalator combplate stop switch assembly Escalator combplate stop switch assembly

1992-09-15

1994-05-03

Gastineau, Cheryl L.

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

With means to control the operation of the section

B65G 2500

Patent

active

053079183

ABSTRACT:
A power switch assembly is operably connected to the combplate of an escalator for selectively shutting off the escalator in the event of entrapment of some object between the steps and combplate. When an object becomes wedged between the steps and combplate, the latter will be lifted or pushed upwardly away from the steps. The upward movement of the combplate operates a power interruption switch to stop further movement of the steps and handrail. The combplate is supported on the truss by spring assemblies which serve to effectively lower the weight of the combplate so that upward movement of the latter is more readily accomplished. The assembly can be retrofitted onto older existing escalators with heavier combplates than are found in newer equipment.

REFERENCES:
patent: 3132733 (1964-05-01), Boman et al.
patent: 3233717 (1966-02-01), Minejiro Jin et al.
patent: 3913723 (1975-10-01), Johnson
patent: 3934699 (1976-01-01), Saito et al.
patent: 4088219 (1978-05-01), Binns
patent: 4476971 (1984-10-01), Schoneweiss
patent: 4629052 (1986-12-01), Kitamura

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