Device for blocking a safety brake for lift equipment
AssigneeInventio AG
InventorsJulien Maury, Stefan Hugel
Life of this patent
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Abstract
An improvement for lift equipment having a lift cage and a counterweight movable in a lift shaft with travel buffers at at least one end permits override of safety brake operation when buffer travel occurs. The invention comprises a blocking device which blocks operation of the safety brake, and may include a blocking lever connected to a trip lever mechanism of the safety brake and a blocking element which controls the movement of the blocking lever.
Claims4
In lift equipment with a lift cage and a counterweight movable in a lift shaft having a buffer element at at least one end thereof and a safety brake which operates when excess speed of the lift cage or the counterweight occurs, the improvement comprising a blocking device for blocking operation of the safety brake having a blocking lever connected to a trip lever mechanism of the safety brake and at least one blocking element arranged in the lift shaft to control the movement of the blocking lever.
Dependencies are inferred from the claim text.