Sheet feeding or delivering – Feeding – Separator and conveyor
Patent
1977-04-18
1978-09-12
Stoner, Jr., Bruce H.
Sheet feeding or delivering
Feeding
Separator and conveyor
271 37, 271121, B65H 352
Patent
active
041132459
ABSTRACT:
A multibin, cut-sheet xerographic copier capable of operating in a simplex or a duplex copy mode, wherein sheets are fed from a selected sheet stack, one at a time, to the copier's transfer station, by a sheet feeding means which includes a combing wheel. The combing wheel shingles the top few sheets, and particularly the single top sheet's leading edge, to a normally open feed nip. This nip is closed by copier logic to feed the top sheet to the transfer station. The feed nip comprises a fixed position, continuously rotating feed roller adapted to cooperate with the top surface of the top sheet. A solenoid controlled, nip-closing, composite pad is pivotable upward to press the top sheet against the feed roller. This composite pad includes a first low friction, nonresilient pressure pad cooperating with the feed roller, and a second, reduced thickness, resilient pad cooperating with the leading edge of the shingled sheets under the top sheet. A spring biases all shingled sheets away from the feed roller and toward the solenoid controlled composite pad.
REFERENCES:
patent: 576116 (1897-02-01), Hansen
patent: 748279 (1903-12-01), Hallberg
patent: 856347 (1907-06-01), Jahn
patent: 1151808 (1915-08-01), Middleditch
patent: 2363357 (1944-11-01), Post
patent: 3588094 (1971-06-01), Bost
patent: 3640524 (1972-02-01), Fredrickson
patent: 3885782 (1975-05-01), Wright et al.
Colglazier Donald Francis
Fallon John Leslie
Kollar Ernest Paul
Mares Fred Ralph
International Business Machines - Corporation
Sirr Francis A.
Stoner Jr. Bruce H.
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