Abstract: A lifting aid for supporting the trunk muscles, which is arranged in a fixed position on the back of a person carrying it via an upper (wearer) and a lower body connection, having—a fixed back system with the right and left hip elements hinged thereto—at least one mechanical energy storage device which stores energy as elastic deformation and the spring elements of which are attached at one end to the lower body connection;—at least one force transmission element/tensioning device, which is attached to the lower energy storage device(s) and connects it to the back system, as well as freewheel devices with a freewheeling and adjustment function in the hip elements, the fixed back system being fixed to the back and the tensile forces of the energy storage devices being transmitted to the back area, and relates to a fixed back element.

Abstract: An operating device for a handling device, with a gripping section and a coupling for a gripping device, with at least a part of the coupling being at or in the gripping section, so that it is rotatable about an axis of rotation, with a reading device for reading out an information carrier with coded data being placed on the side of the griping section facing the coupling, where the reading device is designed to read out an information carrier of a gripping device coupled to the coupling regardless of the rotational position of the coupling.

Abstract: An operating device for a handling device, with a gripping section and a coupling for a gripping device, with at least a part of the coupling being at or in the gripping section, so that it is rotatable about an axis of rotation, with a reading device for reading out an information carrier with coded data being placed on the side of the griping section facing the coupling, where the reading device is designed to read out an information carrier of a gripping device coupled to the coupling regardless of the rotational position of the coupling.