A device for positioning sheets in a machine station

Details A device for positioning sheets in a machine station A device for positioning sheets in a machine station

B - Operations, Transporting

65

H

B65H 9/08 (2006.01) B65H 5/14 (2006.01)

Patent

CA 2346276

A device for positioning sheets in a station of a sheet-processing machine comprising a movable bearing surface for holding at least one edge zone of a sheet, actuators driving the bearing surface in the plane thereof, gripping means accompanying the motion of the bearing surface and adapted to grip or release the edge zone of the sheet between a sheet-gripping means (16) and the bearing surface. The sheet-gripping means (16) is connected to the bearing surface by at least one joint comprising a number of levers (10, 18) forming a parallelogram articulated around horizontal pivot axes (11, 13, 17, 19). A piston (24) comprising a permanently compressed spring eliminates the radial clearance between the pivot axes. Lateral clearance thereof is eliminated by a spring strip which is rigid in the transverse direction.

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