Transfer Drum Between Printing Units of a Sheet-Fed Printing Press
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United States of America Patent
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N/A
Issued Date -
Apr 16, 2009
app pub date -
Oct 15, 2008
filing date -
Oct 15, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A transfer drum for conveying a sheet in a printing press improves the accuracy of a sheet transfer. The transfer drum includes a drum body which is supported for rotation in a frame and a gripper system on the drum body for holding an edge of the sheet. The gripper system is formed of a row of spaced-apart gripper fingers jointly pivotable about an axis which is parallel to the axis of rotation of the drum body. A device for actuating the gripper fingers during a revolution of the drum body includes an actuating element which is displaceable in the direction of the axis and on which at least two drive elements of cam joints are formed. Each of the drive elements is in operative connection with a group of the gripper fingers.
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