Abstract: Transporting an essentially sheet-like element, particularly for transporting a sheet of printing material in a printing press, in which the sheet-like element is picked up in the area of its leading edge by at least one rotating transport at a pickup site, transported to a delivery site, and then delivered there, wherein the sheet-like element is curved over a rotational or curvature radius during transport. The sheet-like element is forced between the pickup site and the delivery site by at least one guide element, that is, an intermediate guide element, that blocks at least in the centrifugal direction, in order to maintain the radius of curvature.

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: A device for stacking sheets for a printing machine, including at least a sheet deflection device which can be driven in rotation, and which is provided for receiving or grabbing a front edge of a sheet and for stacking the sheet after it has moved through a rotation path, and having at least two sheet conveyance devices that can be rotated substantially independently of each other about the common axle, and thus one of these sheet conveyance devices is ready to receive or grab a next sheet, when another one of these sheet conveyance devices is still occupied with the transport and the stacking of a preceding sheet.

Abstract: A device for depositing sheets for a printing machine. The invention provides a device, which, while safely guiding sheets, is, at the same time, relatively complex and can still be configured in a largely open and accessible manner. The device is characterized by a transport path segment for the sheets, the path branching in the region of influence of a rotating transport member, whereby the transport member itself forms a part of the boundary of the transport path segment, and whereby an adjustable switch is provided in the branching region. The switch is used to enable a path for a sheet transported through the transport path segment in transport direction after a part of the transport path segment bordered by the transport member in order for the sheet to leave the region of influence of the rotating transport member, or to enable a path for a guiding deflection by the transport member acting as the deflecting member.

Abstract: A digital printing or copying machine (1) is proposed for the one-sided or double-sided printing onto a substrate (5), using at least one toner. The machine (1) includes at least one fixation device (3) for fixing the toner image on the substrate (5). The fixation device (3) has at least one heating device (13) for melting the toner image, past which the substrate (5) can be taken. The machine (1) is distinguished by a guide device (17) for the free floating movement of the substrate (5) in the effective range of the heating device (13).

Abstract: Transporting an essentially sheet-shaped element, particularly for transporting a print material sheet in a printing press in which the sheet-shaped element is taken hold of by at least one rotating transport having at least one mouth-like receptacle for introducing the front-edge region of the sheet-shaped element at a grasping location in its front-edge region, entrained up to a delivery location and delivered there, the sheet-shaped element being bent during the entraining over a rotation or curvature radius. The sheet-shaped element is taken hold of by at least one grasping device in the region of the mouth-like receptacle, particularly actively and in a compulsory manner.

Abstract: Apparatus for depositing sheets on a stack, which permits essentially free access to the stack and can be implemented with a low outlay of materials and costs. The apparatus includes on the side of the stack (1) that faces a machine, tongues (5, 6) with which frictional elements (3, 4) can be brought into and out of contact and which can be moved in the conveying direction (10) of the sheets (2) and in the opposite direction, and can be lowered onto the stack (1), and wherein on the side of the stack (1) that faces the machine, at least one hold-down (7) is provided which can be moved in the conveying direction (10) of the sheets (2) and in the opposite direction, and can be lowered onto the stack (1).

Abstract: A hold down clamp for holding down a stack of sheet material, preferably on a transportation trolley selectively in operative association with a printing machine. The hold down clamp has a vertically adjustable holding arm selectively lockable along a substantially upright guide member. The holding arm has at least one release member for releasing locking, the release member being movable in the direction away from the stack. This allows the holding arm to be pliable upwardly in case of emergency.

Abstract: A device for conveying and depositing paper on at least one stack, with a device (27) for moving conveyor rollers (1) laterally in the conveying direction of the sheets and a device (28) for transmitting rotations to conveyor rollers (1), in particular to operate within a depositing device of a sheet-processing machine. In order to ensure a quicker lateral movement of conveyor rollers (1) and to protect the devices (27) and (28) from soiling and mechanical effects, members of the same are located within a rod (2), on which conveyor rollers (1) are located. Furthermore, there are possibilities to calibrate the device with respect to the position of conveyor rollers (1) and to adjust height differences within a stack with tensionless equalization.

Abstract: A device for moving a sheets transversely to its conveying direction with a toothed belt for driving a spindle, whose conveyor rollers for grasping the sheet are attached with a blocking device with at least two toothed gears on the drive belt, whereby the toothed gears have blocking members that strike each other based on a certain gear transformation ratio of the two toothed gears following a certain number of rotations of the toothed gears and which block the movement of the toothed gears.

Abstract: Apparatus for transporting an essentially sheet-like element the apparatus including at least one rotating transport mechanism for transporting the sheet-like element from a pickup site to a delivery site, the rotating transport mechanism having, for receiving and entraining the sheet-like element, at least one gripper-like pickup into which the leading edge of the sheet-like element is introduced or inserted, and including at least one offset mechanism that is coupled with the transport mechanism for laterally offsetting the sheet-like element in the area of the delivery site in a direction essentially parallel to the rotational axis of the transport mechanism.

Abstract: Transporting an essentially sheet-shaped element, particularly for transporting a print material sheet in a printing press in which the sheet-shaped element is taken hold of by at least one rotating transport having at least one mouth-like receptacle for introducing the front-edge region of the sheet-shaped element at a grasping location in its front-edge region, entrained up to a delivery location and delivered there, the sheet-shaped element being bent during the entraining over a rotation or curvature radius. The sheet-shaped element is taken hold of by at least one grasping device in the region of the mouth-like receptacle, particularly actively and in a compulsory manner.

Abstract: Conveying an essentially sheet-shaped element, in particular, for conveying a sheet of printing medium in a printing machine. The sheet-shaped element is: 1) picked up by at least one rotating conveying component having at least one jaw-shaped receiver for introducing or inserting the leading edge of the sheet-shaped element at a pickup point located in the area of its leading edge; and 2) carried along to a stacking point where it is stacked, whereby the sheet-shaped element is bowed around a rotational radius or a radius of curvature. The sheet-shaped element is held by at least one retaining component located in the area of the jaw-shaped receiver, in particular, proactively, and by force.

Abstract: Transporting an essentially sheet-like element, particularly for transporting a sheet of printing material in a printing press, in which the sheet-like element is picked up in the area of its leading edge by at least one rotating transport at a pickup site, transported to a delivery site, and then delivered there, wherein the sheet-like element is curved over a rotational or curvature radius during transport. The sheet-like element is forced between the pickup site and the delivery site by at least one guide element, that is, an intermediate guide element, that blocks at least in the centrifugal direction, in order to maintain the radius of curvature.

Abstract: A gripping arrangement for a stacker device or delivery tray of a printing press. At least one upper gripper arm and at least one lower gripper arm are provided, which have a first opened position and a second closed position. Sheets are located between the upper and lower gripper arms in the closed position. A first guiding device guides the gripping arrangement substantially in the vertical direction, and a second guiding device guides the gripping arrangement substantially in the horizontal direction.

Abstract: An offset sheet stacker device for flexible sheet material (2), especially paper, with at least one deflection wheel (3) which has at least one receiving slot (4) which is located essentially tangentially, a sheet feed device (5) which discharges into at least one receiving slot (4) when it is in the receiving position (6), and a sheet delivery stop (7) in the area of the deflection wheel (3) which is opposite a receiving position (6), the wheel running in a recess (8) of said sheet delivery stop (7) and the latter lying in the sheet delivery position (17) at least on one side of said receiving slot (4). On one shaft (9) there are at least two deflection wheels (3) which have receiving slots (4) in identical positions and that the shaft (9) can be inclined relative to the transport direction (10) of the sheet feed device (5).

Abstract: A device for moving a sheets transversely to its conveying direction with a toothed belt for driving a spindle, whose conveyor rollers for grasping the sheet are attached with a blocking device with at least two toothed gears on the drive belt, whereby the toothed gears have blocking members that strike each other based on a certain gear transformation ratio of the two toothed gears following a certain number of rotations of the toothed gears and which block the movement of the toothed gears.

Abstract: A three-way diverter having two paper guide elements which, in the area of the fork in the paper running paths, are pivotably arranged upstream of the dividing points of the paper running paths in such a way that, in a first position, they connect the access to the central outlet and, as a result of one of the paper guide elements in each case being pivoted into a second or third position, one of the outer outlets for the paper run is opened and the other outlets are blocked. The access has a funnel-like taper in the paper running direction and, downstream of the taper of the access, there are on both sides depressions which are sufficiently large that, in the second or third position, they accommodate both leading ends of the paper guide elements such that the latter lie to one side of the paper run.

Abstract: The invention concerns a stack height determination mechanism (25) for a stack (1) consisting of flat material (2) with at least one sensor (3) to determine stack height and a stack height control mechanism. Exact determination of the stack height, especially in order to exactly position the stack for the next delivery of material (2), is achieved in that a flat element (4) to determine the height of the stack (1) is brought into a bearing position (5) on the stack and that this bearing position (5) is determined by at least one sensor (3).

Abstract: The invention relates to a device (1) for generating an offset (2) of transported flexible sheet material (3), especially sheets of paper, with a feeding and a discharging transport path section (5 and 7) and a transport path section (6) which is assigned to the offset generating means (10). These devices of the prior art often require a control, resetting of the offset generating means after each sheet of material (3) or they do not operate independently of format. The invention affords relief by the offset generating means (10) having at least two deflections (8, 9 or 8, 8′, 9, 9′) which are parallel, which work in opposite directions, and which can be moved to an angle (gamma) to the transport direction (4); this angle is measured in the plane of the feeding transport path section (5) and is not equal to 90° projected onto this plane.