Method of stacking continuously arriving sheets
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United States of America Patent
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Sep 9, 1997
Issued Date -
N/A
app pub date -
Sep 30, 1996
filing date -
Dec 22, 1994
priority date (Note) -
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Abstract
A method for stacking sheets has a conveyor having a downstream end spaced upstream in a horizontal transport direction from a stacking station for delivering the sheets continuously one after the other at a predetermined upper level in the direction to the station and a main platform vertically displaceable in the stacking station between an upper position below the upper level and a lower position. An auxiliary platform below the upper level is formed by a plurality of parallel rods horizontally displaceable in the direction between an extended position in the station above the main platform and a retracted position upstream of the main platform. A plurality of vertically extending separator elements having bent-over upper ends projecting downstream between the rods in the transport direction are and displaceable between a separating position projecting into the station between the auxiliary platform and the upper level and engaged between trailing edges of sheets and a withdrawn position out of the station between the station and the conveyor downstream end. Each element has a vertical length greater than the vertical distance between the auxiliary platform and the upper level.
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