Device for conveying sheets that comprises a sheet directing element
AssigneeKba-Notasys SA
InventorsThomas Hendle, Gerald Josef Reinhard
Life of this patent
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Abstract
The invention relates to a sheet guide element for use in an apparatus for transporting sheets by means of a gripper system having at least two grippers spaced apart from each other and a sheet guide surface defined by the sheet guide element. Here, the sheet guide element is provided with depressions in the sheet guide surface, running parallel to the transport direction, at least in some sections, in order at least partially to accommodate the grippers, so that the sheet guide surface described by the sheet guide element in the transport direction runs, at least in some sections, at the same height as the movement path of the sheet leading edge fixed in the gripper system.
Claims38
An apparatus for transporting sheets with a sheet guide element and at least one gripper system for holding sheets by a sheet leading edge thereof, said gripper system having at least two grippers spaced apart from each other and a sheet guide surface defined by the sheet guide element, said sheet guide surface being curved concavely and having a shape of a circular arc, the sheet guide element being provided with depressions in the sheet guide surface, running parallel to the transport direction, at least in some sections, in order at least partially to accommodate the grippers, so that the sheet guide surface described by the sheet guide element in the transport direction runs, at least in some sections, at the same height as the movement path of the sheet leading edge fixed in the gripper system, wherein the sheet guide surface of the sheet guide element approaches the transport plane of the gripper system, as referred to the transport direction, and the grippers are arranged to dip increasingly more deeply into the depressions in the transport direction.
An apparatus for transporting sheets with a sheet guide element and at least one gripper system for holding sheets by a sheet leading edge thereof, the sheet guide element having a sheet guide surface, the sheet guide surface of the sheet guide element approaching the transport plane of the gripper system, as referred to the transport direction, wherein the sheet guide surface of the sheet guide element along the transport direction is described by a first circular arc with radius (Ra), and the movement path in the transport direction of the sheet leading edge clamped in the gripper system is described by a second circular arc with radius (Rg), and the first and second circular arcs intersect at a point.
Dependencies are inferred from the claim text.