Sheet feeding or delivering – Feeding – Separators
Patent
1989-08-14
1991-02-12
Skaggs, H. Grant
Sheet feeding or delivering
Feeding
Separators
271110, 271125, 271171, B65H 352, B65H 704, B65H 714
Patent
active
049918311
ABSTRACT:
Disclosed is a sheet feeder device including support for a generally vertical stack of sheets. The support means includes endless belts having an upper belt run position to extend across the bottom of the stack of sheets. A stationary gate forming member is provided which is positioned above the upper run of the belts and adjacent the forward side of the stack to define a nip which forms a gap between the gate forming member and the upper run for permitting the lowermost sheet of the stack to pass forwardly from the stack through a nip. The gate forming member is a cylindrical roll defining a central axis and an outer peripheral surface which is concentric to the central axis. The roll has a plurality of annular grooves extending about the circumference thereof, and the grooves are disposed concentrically about a second axis which is eccentric to the central axis. An elastomeric ring is disposed in each of the grooves, and the rings have a coefficient of friction which is higher than that of the material of the roll.
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Reiss Steven M.
Skaggs H. Grant
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