Power and communication for elevator car without traveling cable

Details Power and communication for elevator car without traveling cable Power and communication for elevator car without traveling cable

1996-04-10

1998-03-31

Noland, Kenneth

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific load support drive-means or its control

187290, B66B 902

Patent

active

057327955

ABSTRACT:
Normal power for the fan (22), lights (23), operating car panel (26), and cab controller functions (29) is provided from a voltage regulator (41) driven by a flywheel motor generator (38) which is accelerated when the elevator car (11) is near a landing by power supplied through brushes (34) from power tracks (32) disposed on the building (33). Power for the cab door operator (21) is supplied only directly from the brushes (34). A transceiver (46) provides all operational, safety and emergency phone voice communication with the building, whereby the traveling cable normally used on an elevator car is eliminated. The brushes are extended to engage the power tracks by means of springs (176), and are retracted into a clearance position by means of solenoids (174).

REFERENCES:
patent: 4657117 (1987-04-01), Lauer

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