Non-contacting and torquer brake mechanism

Details Non-contacting and torquer brake mechanism Non-contacting and torquer brake mechanism

1998-07-10

2000-11-21

Oberleitner, Robert J.

Brakes

Operators

Electric

188161, 188162, B60L 700

Patent

active

061489670

ABSTRACT:
A brake mechanism includes an inner assembly secured to a motor shaft and an outer assembly surrounding the inner assembly. The outer assembly includes a permanent magnet or an electromagnet between a pair of ferromagnetic pole structures. The inner assembly also includes a pair of ferromagnetic pole structures. During operation of the brake mechanism, the inner assembly is rotated relative to the outer assembly, and the pole structures cause a magnetic field within the inner assembly to pulsate. The pulsating magnetic field causes the inner assembly to apply a braking torque to the shaft.

REFERENCES:
patent: 2939023 (1960-05-01), Fehr
patent: 3382384 (1968-05-01), Hulls
patent: 4864173 (1989-09-01), Even
patent: 5234083 (1993-08-01), Lee
patent: 5303802 (1994-04-01), Kuwahara
patent: 5337862 (1994-08-01), Kuwahara
patent: 5465815 (1995-11-01), Ikegami

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