Folder having a retractable covering cam for changing operating mode
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United States of America Patent
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Jun 29, 2010
Grant Date -
Mar 13, 2008
app pub date -
Aug 28, 2007
filing date -
Aug 28, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
This folder includes a device for cutting sheets from a web of paper, a folding cylinder which is provided with movable retention devices and movable blades for folding the sheets cut from the web, a cam for controlling the movement of the movable retention devices by contact with cam followers, a cam for controlling the movement of the tucking blades by contact with cam followers, and at least one covering cam.The covering cam includes two semi-cams which can each be moved radially between a retracted position and an extracted position, the covering cam being in a configuration for straight operation when the semi-cams are in a retracted position and in a configuration for collect operation when the semi-cams are in an extracted position.
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