Brake for a lift
AssigneeInventio AG
InventorDaniel Fischer
Life of this patent
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Abstract
A self-centering brake for a lift provides for the same braking moment in the case of normal operation and in the case of failure of a brake half. The brake consists of a housing which is U-shaped in cross-section, wherein a limb of the U corresponds with a brake half. The brake halves are of identical construction. An active brake lining and a passive brake lining are provided for each brake half. The active brake lining is loaded by a spring force of a compression spring. In the case of failure of a brake half the passive brake lining takes over the function of the active brake lining.
Claims12
A brake for a lift, comprising two brake halves each having an active brake lining, a compression spring for activation of the brake lining and an actuator for release of the brake lining, the compression spring producing a braking force against a brake surface when the actuator is deactivated, and means for mounting the brake for floating travel in a perpendicular direction to the brake surface.
A method of operating a brake for a lift, which brake consists of two brake halves, wherein a compression spring for activating the brake and an actuator for release of the brake are provided for each brake half and wherein the compression spring and actuator act on at least one active brake lining of the brake half to produce a braking force at a brake surface when the actuator is deactivated, characterized in that a same braking force is generated in the case of normal operation and in the case of failure of at least the compression spring of a brake half through acting of a passive brake lining at the brake surface.
Dependencies are inferred from the claim text.