Patent attributes
A control apparatus for an elevator installation has actuating elements on a front surface. The control apparatus includes an insert in the form of a key-operated switch cylinder which has a recess or a key slot. The insert is mounted in a side surface that is one of a lateral side wall of a housing, an end surface of an elevator car handrail and a side surface of a column. The recess opens transversely to the front surface. A separate auxiliary actuating element is received into the recess in the direction of an axis extending parallel to the front surface. The insert is mechanically actuatable by rotation of the auxiliary actuating element about the axis in order to trigger specific functions in conjunction with the control of the elevator installation.