Electromagnetic disc brake for elevator lifting apparatus

Details Electromagnetic disc brake for elevator lifting apparatus Electromagnetic disc brake for elevator lifting apparatus

1990-07-26

1992-10-13

Butler, Douglas C.

Brakes

Operators

Spring

188 721, 188 723, 188161, 188216, B60T 1374

Patent

active

051542617

ABSTRACT:
An electromagnetic disc brake for an elevator lifting apparatus comprises a disc spline-coupled with a rotational shaft. Braking body and an armature disposed to clamp the disc; braking springs press the armature against the disc, and an iron core is provided which includes inner and outer magnetic poles each facing the armature and concentrically formed with respect to the rotational shaft. An electromagnetic coil generates magnetic flux to pass through the inner and outer magnetic poles as magnetic paths. In addition, at least one of the pole face of the outer magnetic pole and the facing portion of the armature where it faces the pole face is provided with an arrangement for increasing a magnetic gap, and the braking springs are disposed in portions of the outer magnetic pole. Further, the braking body is supported through a sound absorbing member or one side of the armature facing the disc is formed of a sound absorbing member.

REFERENCES:
patent: 2663387 (1953-12-01), Berkovitz
patent: 2949172 (1960-08-01), Simons
patent: 3202244 (1965-08-01), Vogelsang et al.
patent: 3357528 (1967-12-01), Verlinde
patent: 3983971 (1976-10-01), Kawai
patent: 4142610 (1979-03-01), Alexander et al.
patent: 4156478 (1979-05-01), Kroeger
patent: 4187603 (1980-02-01), Kroeger
patent: 4285420 (1981-08-01), Sekella
patent: 4445596 (1984-05-01), Waters et al.
patent: 4566575 (1986-01-01), Sekella
patent: 4582187 (1986-04-01), Sekella
patent: 4982825 (1991-01-01), Sekella
"Modern Mobile Engine" published by Chung Hwa Bookstore, pp. 2-218. (undated).

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