The invention relates to a holder (1) for at least one cassette, with the holder (1) having at least one shaft holder (100), at least one shaft element (200, 250) and at least one cassette, with the at least one cassette being attached to the shaft element (200, 250) such that it can pivot about a pivoting axis, with the at least one shaft element (200, 250) being attached to the shaft holder (100), with the at least one shaft element (200, 250) having a guidance channel (212, 212a; 253, 253a; 254, 254a), with the guidance channel (212, 212a; 253, 253a; 254, 254a) running at least partially parallel to the pivoting axis, with the cassette having at least one element (515, 515a) for rotatable mounting, wherein at least one element (515, 515a) is mounted, for rotatable mounting, such that it can rotate on the at least one shaft element (200, 250).