Cover for functional element has ring on bellows to lock in engagement with corresponding recess in functional element

摘要

The cover has roughly cylindrical bellows (8, 10) attached to the functional element (2) by fixing cutouts. There is at least one ring (12, 14, 16) fixed to the bellows. The ring can be brought into a locking engagement with a correspondingly shaped recess (20, 22). The ring or the cover may have angled grooves for bayonet pins.