Sheet feeding or delivering – Feeding – Separators
Patent
1990-07-20
1993-01-26
Olszewski, Robert P.
Sheet feeding or delivering
Feeding
Separators
271118, 271121, B65H 300
Patent
active
051817080
ABSTRACT:
The top sheet is separated and removed from a paper sheet stack by a paper feed mechanism which is selectively movable downwardly toward the stack. As the feed mechanism downwardly approaches the stack, a foot portion of the mechanism frictionally contacts the top sheet and is upwardly pivoted by the stationary paper stack. Upward pivoting of the foot portion causes it to frictionally shift the top sheet in a first horizontal direction relative to the rest of the sheets. A drive wheel portion of the feed mechanism, supported for conjoint pivoting with the foot portion about its pivot axis, then frictionally engages the shifted top sheet in place of the foot portion. In response to the upward pivoting of the foot portion, a driven gear supported for pivotal movement therewith and rotationally locked to the drive wheel portion is caused to mesh with a drive gear operative to rotate the driven gear and thus the drive wheel portion. Rotation of the drive wheel portion frictionally drives the shifted top sheet, over a ramp-shaped portion of the feed mechanism, in a horizontal direction opposite to the initial shift direction thereof to thereby separate and remove the top sheet from the paper stack.
REFERENCES:
patent: 3279787 (1966-10-01), Niccoli
patent: 3866901 (1975-02-01), Brock
patent: 3893663 (1975-07-01), Sanchez et al.
patent: 3940125 (1976-02-01), Morton
patent: 4223884 (1980-09-01), Burnham et al.
patent: 4463943 (1984-08-01), Deconinck
patent: 4506876 (1985-03-01), Nishibori
Compaq Computer Corporation
Olszewski Robert P.
Reiss Steven M.
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