Method and device for feeding sheets one by one from a pile...

Details Method and device for feeding sheets one by one from a pile... Method and device for feeding sheets one by one from a pile...

2005-04-28

2009-11-24

Mackey, Patrick H (Department: 3653)

Sheet feeding or delivering

Feeding

Separators

C271S112000

Reexamination Certificate

active

07621524

ABSTRACT:
A method and device for feeding sheets one by one from a stack of sheets to a transportation device are described. The sheet-feeding device comprises a number of parallel, separately driven shafts which are equidistantly spaced from one another and are enclosed in a low-pressure chamber and carry a plurality of feeding wheels. A separating device is arranged above the low-pressure chamber. At least one relieving element is arranged in a vertically displaceable manner between a sheet-supporting position and a non sheet supporting position. Each relieving element is positioned before each wheel shaft and the movement thereof as well as the rotational movement of the wheels are controlled by the control unit depending on the position of the rear edge of the sheet relatively to the wheels.

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