Load lifting and lowering device, has drive unit manually controllable by control unit and provided with brake control element, and braking force effect of wedge brake influenceable by control unit

摘要

The device (1) has a drive unit (4) driving a lifting/lowering device (3), where the drive unit includes a main drive and a brake unit with a controlled or regulated wedge brake. The drive unit is manually controllable by a control unit (5) and has a brake control element (11), and a braking force effect of the wedge brake is influenceable by the control unit, where the brake control element is formed as a rotatable controller and equipped with an automatic reset function. The drive unit is equipped to execute a lowering operation for fine positioning of a load (2) by the brake unit.