Sheet feeding device

Details Sheet feeding device Sheet feeding device

1993-01-12

1994-07-12

Schacher, Richard A.

Sheet feeding or delivering

Feeding

Separator and conveyor

271107, 271111, 271270, B65H 308

Patent

active

053281640

ABSTRACT:
Disclosed herein is a device for feeding sheets, one by one, from a stack of sheets. The sheet feeding device basically comprises a suction cup or pad which is used to attract and hold an uppermost one of stacked sheets for thereby taking out the uppermost sheet from the stacked sheets and which is swingable at a given angular range, a delivery mechanism for receiving the uppermost sheet from the suction pad for deliverying the same to a succeeding device, a drive source for swinging the suction pad, and a control circuit for swinging the suction pad at, at least, either a first angular velocity or a second angular velocity which is lower than the first angular velocity and is used to deliver the uppermost sheet to the delivery mechanism. The sheet conveying speed the delivery mechanism to the succeeding device can accurately be adjusted so as to match with the actual sheet conveying speed of the succeeding device.

REFERENCES:
patent: 2183293 (1939-12-01), Leach
patent: 4634263 (1987-01-01), Miwa
patent: 5041879 (1991-08-01), Akao
patent: 5073802 (1991-12-01), Sugiyama
patent: 5104110 (1992-04-01), Haibara
patent: 5127645 (1992-07-01), Torisawa

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