Device for monitoring escalator handrail speed

Details Device for monitoring escalator handrail speed Device for monitoring escalator handrail speed

1993-09-01

1997-07-08

Valenza, Joseph E.

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

With means to control the operation of the section

1985024, B65G 4300

Patent

active

056451563

ABSTRACT:
An improved escalator 10 which incorporates a device 58 which monitors the speed of an escalator handrail 12. The escalator having a handrail and a transmission unit 14. The device cooperates with a portion of the transmission unit that moves at the same speed as the handrail. Various details are developed which facilitate the monitoring of the handrail speed. In one detailed embodiment, the device includes a plurality of targets 60 and a sensor 62 which is not interfered with by the handrail.

REFERENCES:
patent: 3780297 (1973-12-01), Geary
patent: 3845375 (1974-10-01), Stiebel
patent: 4448820 (1984-05-01), Buschor
patent: 5072820 (1991-12-01), Steffen et al.
patent: 5090551 (1992-02-01), Yasuhara et al.
patent: 5092446 (1992-03-01), Sullivan, Jr. et al.

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