Sheet feeding or delivering – Delivering – With transfer means between conveyor and receiver
Patent
1977-03-04
1978-01-17
Schacher, Richard A.
Sheet feeding or delivering
Delivering
With transfer means between conveyor and receiver
271217, 271220, B65H 2944
Patent
active
040688399
ABSTRACT:
A dual exit tray xerographic machine, having a hot roll fuser, supplies its output copy sheets to a large-capacity exit pocket whereat the sheets are stacked in a vertically extending pile, on a servo-movable elevator platform. The platform height is servo controlled so as to maintain the stack's top sheet at a fixed position relative to a fixed-position, generally horizontally extending, sheet discharge path.
Sheet stacking is enhanced by a pair of movable bars. A hold-down bar, in its quiescent position, presses the stack's trailing edge portion down to insure reliable insertion of the next sheet. A pusher bar is maintained in an elevated quiescent position during such insertion.
After the sheet has been inserted, the pusher bar lowers onto the stack, at a position between the hold-down bar and the stack's leading edge. The pusher bar thus holds the just-inserted sheet down. The hold-down bar synchronously moves in a generally elliptical path, to first clear the trailing edge of the just-inserted sheet. The hold-down bar then moves in an upward path until it again overlies the stack's trailing edge. The hold-down bar now descends onto the stack, as the pusher bar returns to its quiescent position.
REFERENCES:
patent: 1573414 (1926-02-01), Mahoney
patent: 1902436 (1933-03-01), Joachim
patent: 2926910 (1960-03-01), Martin
patent: 3095192 (1963-06-01), Simjian
patent: 3304083 (1967-02-01), Rasmussen
patent: 3537704 (1970-11-01), Bond
patent: 3847388 (1974-11-01), Lynch
patent: 3849907 (1974-11-01), Lynch
patent: 3954259 (1976-05-01), Gerbasi
patent: 3957264 (1976-05-01), Bach
Xerox Disclosure Journal, vol. 2, No. 1, Jan./Feb. 1977, p. 33, "Sorter Apparatus," John H. Looney.
Bullock Michael Kermit
Clay Sherwood Anderson
Overton Gregory Bingham
International Business Machines - Corporation
Schacher Richard A,.
Sirr Francis A.
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