The invention relates to a lifting device, in particular a patient lifter, comprising a drive motor (3, 4) having an output shaft (6), a winding coil (11) for winding a lifting tool (13), a rotatably mounted winding coil (11), an abutment body (15) connected to the winding coil (11) in a rotationally fixed manner, and a clamping body (24) that can be moved radially to the output shaft (6) between the abutment body (15) and a locking ring (21) and, by means of a coupling arm (27) articulated to the output shaft (6), is coupled to the output shaft (6) in such a way that in the event of a torque (D) produced by the output shaft (6), the clamping body (24) is released from the locking position thereof against the locking ring (21), and in the event of a torque-free output shaft (6), the at least one clamping body (24) blocks the mechanism due to the load-dependent counter torque (G) on the winding coil (11).
