Gripping arrangement for the stacker of a printing press
AssigneeNexPress Solutions LLC
InventorDirk Dobrindt
Life of this patent
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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.
Claims7
Gripping arrangement for a stacker for a printing press, characterized by at least one upper gripper arm (20) and at least one lower gripper arm (10), said at least one upper gripper arm and said at least one lower gripper arm are movable to a first opened position and a second closed position, whereby sheets (140) are located between the upper gripper arm (20) and the lower gripper arm (10) in said second closed position, and a first guiding device (80) for guiding said gripping arrangement substantially in the vertical direction, and a second guiding device (160) for guiding said gripping arrangement substantially in the horizontal direction.
Method for using the gripping arrangement having at least one upper gripper arm (20) and at least one lower gripper arm (10), characterized by movement of said at least one upper gripper arm (20) and said at least one lower gripper arm (10) to a first opened position, in which the ends of said upper gripper arm (20) and said lower gripper arm (10) gripping the sheet are kept apart, the feeding of a sheet (14) between the ends of the upper gripper arm (20) and the lower gripper arm (10), the movement of said at least one upper gripper arm (20) and said at least one lower gripper arm (10) to a second closed position by moving the ends of said upper gripper arm (20) and said lower gripper arm (10) closer together and the gripping of the sheet (140) by a release of said upper gripper arm relative to said lower gripper arm, the moving of said gripping arrangement in the vertical direction toward the stacker, the pressing of a releasing arm (30) by a spacer in reaction to the movement of the gripping arrangement against the stacker, thus producing said first opened position in which the ends of said upper gripper arm (20) and said lower gripper arm (10) are apart, the delivery of a sheet (140) on the stacker, the moving away of the gripping arrangement in the horizontal and vertical direction and the release of said releasing gripper arm (30) by movement of the gripping arrangement, thus producing the second closed position.
Dependencies are inferred from the claim text.