Abstract: The invention relates to a device for guiding flat materials along a transport path within a higher-level device for handling flat materials, whereby the device for guiding flat materials has at least one upper guiding surface that is arranged above the transport path and at least one lower guiding surface that is arranged below the transport path and two side walls between which the at least one lower and upper guiding surfaces are rigidly fastened, whereby mounting elements are provided on the side walls, whereby the device can be installed in the higher-level device for handling flat materials by means of these mounting elements.

Abstract: The invention relates to a device for manual replacement of a roller (1) of a copying machine, the roller being equipped with carrying means, in which it can turn freely around its center axis (X1), and the machine (F) on the one hand having rollers (1; 2) in a roller pair arrangement for routing through and delivering a recording medium (S) in the form of a sheet or strip, which rollers can be operated in rotation in an adjoining, axially parallel arrangement in the bearing points (L1; L2; L3; L4) of the machine, and are supported by their axial ends, and on the other hand there being manually activated means for releasing/fixing the rollers in their bearing points and for separating/compressing (3) the rollers in the radial direction for purposes of removing them from and inserting them into their bearing points.

Abstract: Mechanism for swiveling, locking/unlocking and separating/pressing a first and second housing part, which are connected by means of a swivel axis, of which one housing part can be swiveled. Such mechanism has a common operating unit in the area of the free end of the housing opposite the swivel axis, in such a way that locking/unlocking, swiveling, and separating/pressing the first housing part is carried out together and with one hand by means of the operating unit in a single motion.

Abstract: The invention relates to a device for manual replacement of a roller (1) of a copying machine, the roller being equipped with carrying means, in which it can turn freely around its center axis (X1), and the machine (F) on the one hand having rollers (1; 2) in a roller pair arrangement for routing through and delivering a recording medium (S) in the form of a sheet or strip, which rollers can be operated in rotation in an adjoining, axially parallel arrangement in the bearing points (L1; L2; L3; L4) of the machine, and are supported by their axial ends, and on the other hand there being manually activated means for releasing/fixing the rollers in their bearing points and for separating/compressing (3) the rollers in the radial direction for purposes of removing them from and inserting them into their bearing points.