Gripping unit and a method for gripping a paper
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United States of America Patent
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Sep 29, 2009
Grant Date -
Dec 6, 2007
app pub date -
May 31, 2007
filing date -
Jun 1, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A gripping unit for gripping a paper from a top surface of a stack includes a first and a second friction wheel having rotation axes that are mainly parallel with respect to each other. The friction wheels are arranged to exert a friction force on sections of a paper. Further, the gripping unit comprises an actuator on which the first friction wheel is mounted for moving the first friction wheel towards the second friction wheel. The first friction wheel is arranged to rotate with respect to its axis during the movement towards the second friction wheel such that a paper section on which the first wheel exerts the friction force is forced into the direction of the second friction wheel.
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