Abstract: Presented herein is a sheet turning unit (1) comprising a first sheet conveyor device (2a) for transporting a sheet at least along a first transport path (B1) in a first plane (E1), and comprising a second sheet conveyor device (2b) for transporting the sheet along a second transport path (B2), said second transport path extending at an angle of 90° with respect to the first transport path (B1) and, in sum, describing a curve of 180°, whereby the starting point of said curve is located in the first plane (E1) and the end point of said curve is located in a second plane (E2) that is different from the first plane, and comprising a third sheet conveyor device (2c) for transporting the sheet along at least a third transport path (B3). As a result of this, the leading edge of the sheet remains in front even after the turning operation, and a precisely functioning and reliable sheet turning unit is being provided.

Abstract: Presented herein is a sheet turning unit (1) comprising a first sheet conveyor device (2a) for transporting a sheet at least along a first transport path (B1) in a first plane (E1), and comprising a second sheet conveyor device (2b) for transporting the sheet along a second transport path (B2), said second transport path extending at an angle of 90° with respect to the first transport path (B1) and, in sum, describing a curve of 180°, whereby the starting point of said curve is located in the first plane (E1) and the end point of said curve is located in a second plane (E2) that is different from the first plane, and comprising a third sheet conveyor device (2c) for transporting the sheet along at least a third transport path (B3). As a result of this, the leading edge of the sheet remains in front even after the turning operation, and a precisely functioning and reliable sheet turning unit is being provided.

Abstract: The invention relates to a device for depositing sheets for a printing machine, preferably for an electrophotographically operating printing machine, said device comprising at least one sheet transport member which can be driven so as to rotate and which is provided for the detection of a lead edge of a sheet and for depositing the sheet after it has covered a rotating path.

Abstract: The invention relates to a device for depositing sheets for a printing machine, preferably for an electrophotographically operating printing machine, said device comprising at least one sheet transport member which can be driven so as to rotate and which is provided for the detection of a lead edge of a sheet and for depositing the sheet after it has covered a rotating path.

Abstract: The invention relates to a sheet diverter for a printing machine (100) and a method for diverting a sheet.

Abstract: The present invention relates to a device for depositing sheets for a printing machine, said device comprising at least one rotating drivable sheet transport element, which is designed to receive or grasp a leading edge of a sheet and deposit said sheet on a stack after said sheet has traveled a path of rotation, and comprising at least one drag element for pulling a sheet that has been deposited on the stack toward a mechanical stop. With the present invention, the drag element is coupled with the rotation of the sheet transport element and is arranged in such a manner that said drag element can assume an inoperative position within the region covered by the rotating sheet transport element, and that said drag element, in order to perform its dragging function, can be moved at least partially out of the region covered by the rotating sheet transport element.

Abstract: The invention relates to a device for depositing sheets for a printing machine, preferably for an electrophotographically operating printing machine, said device comprising at least one sheet transport member which can be driven so as to rotate and which is provided for the detection of a lead edge of a sheet and for depositing the sheet after it has covered a rotating path. Therefore, the object of the invention is to make depositing a sheet and turning over a sheet, in particular also larger and/or thinner sheets, more reliable with the use of a device of the aforementioned type. In accordance with the invention, this object is achieved by a device which is characterized by a blower arrangement for the application of air to the sheet to be deposited. Due to the application of air, the sheet to be deposited and to be turned over is advantageously supported by an additional momentum and by its inherent stiffness, so that the sheet will unroll fully after its lead edge has been caught by the rotation.

Abstract: At least two coaxially rotatable sheet conveyors, operating together with one another, are provided, of which the first sheet conveyor, with a jacket surface serving as placement for the sheet, specifies essentially a curvature path for the sheet to be conveyed, and the second sheet conveyor has at least one gripping element to grip the accepted front edge of the sheet, in such a way that the front edge of the sheet can be gripped and conveyed between the gripping element and the jacket sheet.

Abstract: The present invention relates to a device for depositing sheets for a printing machine, said device comprising at least one rotating drivable sheet transport element, which is designed to receive or grasp a leading edge of a sheet and deposit said sheet on a stack after said sheet has traveled a path of rotation, and comprising at least one drag element for pulling a sheet that has been deposited on the stack toward a mechanical stop. With the present invention, the drag element is coupled with the rotation of the sheet transport element and is arranged in such a manner that said drag element can assume an inoperative position within the region covered by the rotating sheet transport element, and that said drag element, in order to perform its dragging function, can be moved at least partially out of the region covered by the rotating sheet transport element.

Abstract: The present invention relates to a device for depositing sheets for a printing machine, said device comprising at least one rotating drivable sheet transport element (6), which is designed to receive or grasp a leading edge of a sheet and deposit said sheet on a stack after said sheet has traveled a path of rotation, and comprising at least one drag element (10) for pulling a sheet that has been deposited on the stack toward a mechanical stop. With the present invention, the drag element is coupled with the rotation of the sheet transport element and is arranged in such a manner that said drag element can assume an inoperative position within the region covered by the rotating sheet transport element, and that said drag element, in order to perform its dragging function, can be moved at least partially out of the region covered by the rotating sheet transport element.

Abstract: Depositing a sheet of paper onto a stack of sheets of paper, preferably for use in a printing press, where the sheet to be deposited is grasped by at least one rotationally drivable sheet conveyor member with the front edge of the sheet fed into a receptacle, and the sheet's front edge is released from the receptacle of the rotating sheet conveyor member prior to depositing of the sheet onto the stack of sheets, and instead, it is deposited into a receptacle of an intermediate transport member where it is further released for depositing the sheet onto the stack of sheets.

Abstract: At least two sheet conveyors are provided in such a way that several of these conveyors can rotate around the common axis, essentially independent of one another, and thus one of these sheet conveyors is ready to accept or detect the next sheet, if another of these sheet conveyors is still occupied with the transport or the placement of a preceding sheet and that a sensor is coupled mechanically with several of these sheet conveyors.

Abstract: The invention relates to a sheet delivery device for a printing machine, preferably for an electrophotographically operating printing machine, comprising a transfer path on which sheets are transported from a path entry (1) of said transfer path to a path exit (2) of said transfer path via said transfer path. The object of the invention is to be able to adapt a sheet delivery device of the above-said type to various types of printing machines in a cost-effective and simple manner, preferably with minimal manipulation. In accordance with the present invention, this object is achieved in that a specific height level is assigned to the path exit (2), while the path entry (1) is configured in a height-variable manner.

Abstract: An apparatus for the alignment of a stack of sheets including at least one pair of trimming elements which can be adjusted at distances relative to each other in a substantially continuous manner in order to accommodate and align the stack between said trimming elements. The trimming elements are coupled to allow their counter-directional movement with respect to each other, such that an automatic stop means preventing an enlargement of the distance between the trimming elements can be deactivated if required.

Abstract: The present invention relates to an apparatus for the alignment of a stack of sheets comprising at least one pair of trimming elements (2, 14) which can be adjusted at distances relative to each other in a preferably continuous manner in order to accommodate and align the stack between said trimming elements (2, 14) An object of the present invention is to disclose an apparatus which permits the centered stack alignment in an inexpensive, reproducible and reliable manner, preferably occurring in transverse, as well as in longitudinal, direction, even when sheets are expected to be duplex-printed. In accordance with the present invention, the trimming elements (2, 14) are coupled to allow their counter-directional movement with respect to each other, in that an automatic stop means (4) preventing an enlargement of the distance between the trimming elements (2, 14) is provided, and in that this stop means (4) can be deactivated if required.

Abstract: At least two sheet conveyors are provided in such a way that several of these conveyors can rotate around the common axis, essentially independent of one another, and thus one of these sheet conveyors is ready to accept or detect the next sheet, if another of these sheet conveyors is still occupied with the transport or the placement of a preceding sheet and that a sensor is coupled mechanically with several of these sheet conveyors.

Abstract: The present invention relates to a device for depositing sheets for a printing machine, said device comprising at least one rotating drivable sheet transport element (6), which is designed to receive or grasp a leading edge of a sheet and deposit said sheet on a stack after said sheet has traveled a path of rotation, and comprising at least one drag element (10) for pulling a sheet that has been deposited on the stack toward a mechanical stop. With the present invention, the drag element is coupled with the rotation of the sheet transport element and is arranged in such a manner that said drag element can assume an inoperative position within the region covered by the rotating sheet transport element, and that said drag element, in order to perform its dragging function, can be moved at least partially out of the region covered by the rotating sheet transport element.

Abstract: The invention relates to a sheet delivery device for a printing machine, preferably for an electrophotographically operating printing machine, comprising a transfer path on which sheets are transported from a path entry (1) of said transfer path to a path exit (2) of said transfer path via said transfer path. The object of the invention is to be able to adapt a sheet delivery device of the above-said type to various types of printing machines in a cost-effective and simple manner, preferably with minimal manipulation. In accordance with the present invention, this object is achieved in that a specific height level is assigned to the path exit (2), while the path entry (1) is configured in a height-variable manner.

Abstract: At least two coaxially rotatable sheet conveyors, operating together with one another, are provided, of which the first sheet conveyor, with a jacket surface serving as placement for the sheet, specifies essentially a curvature path for the sheet to be conveyed, and the second sheet conveyor has at least one gripping element to grip the accepted front edge of the sheet, in such a way that the front edge of the sheet can be gripped and conveyed between the gripping element and the jacket sheet.

Abstract: The present invention relates to an apparatus for depositing a sheet on a stack (11), preferably for a delivery unit of a printing machine, which said apparatus comprises at least one stacking device which can be driven so as to rotate about an axis of rotation in order to grasp and deposit the sheet, and comprises at least one drag element (1), which is arranged on the stacking device and carried along during rotation, whereby said drag element (1) is provided for shifting the last deposited sheet, in particular, for pulling said sheet toward a stack abutment (12). The present invention is to solve the problem of making the operation of aligning the last deposited sheet more reliable and precise. In accordance with the invention, this problem has been solved in that at least one drag element (1) is arranged, relative to the axis of rotation, on the radial exterior side of the at least one stacking member (13, 14, 17).