Braking device that can be released electromagnetically
AssigneeKendrion Binder Magnete GmbH
InventorsEdmund Bausch, Joachim Hubrich
Life of this patent
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Abstract
A braking device that can be released electromagnetically exhibits at least one brake shoe (20), which is pressed against a braking area by the force of a brake spring (14) in order to brake a linear or rotary motion. A magnet system exhibits a coil (1) and an armature (4), while current fed to the coil (1) causes the armature (4) to move against the force exerted by the brake spring (14), with the result that the brake shoes (10) is able to rise from the braking area (13) and thus release the brake. To achieve a high braking force with a magnet system of small structural dimensions the brake force of the brake spring (14) is transmitted from the armature (4) to the brake shoes (10) by at least one pressure element (5) with diagonal wedge areas (7, 8).
Claims14
A braking device comprising:
- At least one brake shoe having a first area and a second area,
- at least one pressure element having an area,
- a brake spring,
- a magnet system with a coil and an armature,
- wherein the at least one brake shoe is movable in a first direction perpendicular to a linear or rotary motion in order to press the first area against a braking area and to brake the motion,
- wherein the brake spring is acting on the at least one pressure element in a second direction perpendicular to the first direction,
- wherein the at least one pressure element is movable by the armature against the force of the brake spring when current is fed to the coil,
- wherein the at least one pressure element acts with its area on the second area of the at least one brake shoe,
- wherein the first area and the second area of the at least one brake shoe are inclined relatively to each other with a wedge angle (α) between 0° and 90°,
- whereby the force of the brake spring is diverted from the second direction into the first direction and is reinforced in accordance with the wedge angle (α).
Dependencies are inferred from the claim text.