Disk brake for elevator

Details Disk brake for elevator Disk brake for elevator

1991-06-07

1992-04-07

Halvosa, George E. A.

Brakes

Operators

Spring

188 28, 188 59, B60H 824

Patent

active

051019396

ABSTRACT:
A caliper brake set engages a disk on the machine shaft or drive sheave to hold the elevator car in place at a landing. The brake set is biased by one or a pair of springs to a "brake-on" condition, and a solenoid assembly is provided to hold the brake set in a "brake off" condition when power is supplied to the solenoid. Camming levers are used in conjunction with the solenoid to provide a mechanical advantage which allows use of smaller solenoids. The brake shoes are spring biased for improved operation on the disk.

REFERENCES:
patent: 1455895 (1923-05-01), Thurston
patent: 2289107 (1942-07-01), Eames
patent: 2792080 (1957-05-01), Dunlop
patent: 2979164 (1961-04-01), Altherr
patent: 3124012 (1964-03-01), Hereth et al.
patent: 4023655 (1977-05-01), Anzai et al.
patent: 4060153 (1977-11-01), Kobelt
patent: 4580663 (1986-04-01), Lehnert
patent: 4688660 (1987-08-01), Kaneko
patent: 4729455 (1988-03-01), May
patent: 4771643 (1988-09-01), Mott

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