An apparatus for controlling, in particular limit stop of a motorized drive device of a winding shaft of a shutter, garage door or the like.

摘要

The appliance has a sensor for detecting changes in torque due to the load changes acting on the winding shaft or the drive unit. The sensor is in the form of a mechanical switching element (34,62) with two components ( 61,73) which operate together. Their relative angular position, referred to a common axis, is variable. Different switching conditions of the switches can be obtained by varying the angular position. The components of the switching element can be fitted with stops to limit the angle range