Abstract: A multipurpose device includes one or more supporting parts which can contact a user's head and preferably a vision aid and/or a hearing aid. At least one supporting part has a tensioning device for tautening the user's facial skin. The tightening device is or can be connected to the supporting part and is pivotable about an axis of rotation. The tensioning device has a tensioning bow and a spring element tensioning the tensioning bow. The tensioning bow is disposed on the side of the supporting part facing the user's head and the spring element is engaged at one end with the supporting part and at the other with the tensioning bow.

Abstract: A floor mat or grate overlain by a web or paper fabric is provided with a clamping device having at least one bar engaging the fabric for preventing shifting of the fabric on the grate or mat. The fabric can be removed, e.g. for cleaning or replacement, by releasing the clamping unit.