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US 4,788,463 AGranted
Electromagnetic brake
OwnerHans-Dieter Layhinventor
Life of this patent
Estimating the term…
Abstract
An electromagnetic brake having brake shoes which are mounted immobile in circumferential direction with respect to a shaft, but are movable in radial direction. The brake shoes interact with a concentric ring-shaped brake stator having a toroid coil and a magnetizable ring housing that force the brake shoes in a radial direction opposite that of a radial force produced by a spring connected to the brake shoes, centrifical force, or a permanent magnet.
Claims15
An electromagnetic brake comprising:
- a shaft;
- brake segments;
- a stationary braking area mounted concentric to said brake segments and said shaft;
- means mounting said brake segments concentric to said shaft for forcing said brake segments in a first radial direction away from said braking area;
- and
- an electromagnetic brake stator mounted concentrical to said brake segments for generating magnetic forces which directly forces said brake segments in a second radial direction toward said braking area opposite said first radial direction.
3 more elements
An electromagnetic brake comprising:
- a shaft;
- brake segments;
- a stationary braking area mounted concentric to said brake segments;
- means mounting said brake segments to said shaft for forcing said brake segments in a first radial direction with respect to said braking area;
- an electromagnetic brake stator mounted concentrical to said brake segments for forcing said brake segments in a second radial direction with respect to said braking area opposite said first radial direction;
- said brake stator including a magnetizable magnetically soft ring housing with an annulus that is radially open on a side facing the brake segments, a ring-shaped permanent magnet in said ring housing for oppositely magnetizing the front sides of the ring housing to force said brake segments in said first radial direction, and an annular coil mounted concentric to said shaft in said annulus for generating a magnetic field that is opposed to the permanent magnet when activated to force said brake segments in said second radial direction.
3 more elements
an electromagnetic brake comprising:
- a shaft;
- brake segments;
- a stationary braking area mounted concentric to said brake segments;
- means mounting said brake segments on an inner circumference of a drum-type hub fixed mounted on said shaft for forcing said brake segments in a first radial direction with respect to said braking area;
- and
- an electromagnetic brake stator mounted concentrical to said brake segments for forcing said brake segments in a second radial direction with respect to said braking area opposite said first radial direction.
3 more elements
An electromagnetic brake comprising:
- a shaft;
- brake segments;
- a stationary braking area mounted concentric to said brake segments;
- means mounting said brake segments to said shaft for forcing said brake segments in a first radial direction with respect to said braking area;
- an electromagnetic brake stator mounted concentrical to said brake segments for forcing said brake segments in a second radial direction with respect to said braking area opposite said first radial direction;
- said brake stator including a pair of spaced ring shaped pole pieces mounted concentrical to said brake segments and a coil for oppositely magnetizing said pole pieces when energized.
3 more elements
Dependencies are inferred from the claim text.