Abstract: An arrangement has an adjustable face shield and a face shield holding mechanism for connection to a headgear base body as well as an adjustable object holding device associated with the face shield. The object holding device has a coupling mechanism for coupling to the headgear base body and an object holding mechanism arranged on the coupling mechanism, and is swivelable in its entirety about a first axis. The face shield and the object holding device is adjustable independently of each other. The first axis coincides with a face shield adjustment axis.

Abstract: A clutch which reacts to torque overload has a ribbed disc which is produced by plastics injection moulding and which is, along its inner or outer periphery, encapsulated in encircling fashion and on both axial side surfaces by an encompassing ring. Said encompassing ring, owing to shrinkage as a result of cooling, enters into static friction engagement with the ribbed disc, and furthermore engages, by means of bevelled flanks, with ribs running radially on at least one of the side surfaces of the ribbed disc.

Abstract: A clutch which reacts to torque overload has a ribbed disc which is produced by plastics injection moulding and which is, along its inner or outer periphery, encapsulated in encircling fashion and on both axial side surfaces by an encompassing ring. Said encompassing ring, owing to shrinkage as a result of cooling, enters into static friction engagement with the ribbed disc, and furthermore engages, by means of bevelled flanks, with ribs running radially on at least one of the side surfaces of the ribbed disc.