Recirculating sheet feeding apparatus

Details Recirculating sheet feeding apparatus Recirculating sheet feeding apparatus

1990-07-31

1992-03-03

Skaggs, H. Grant

Sheet feeding or delivering

Delivering to stack and feeding therefrom

With sheet sensor for selective location

271146, 271 98, 271212, B65H 522

Patent

active

050925768

ABSTRACT:
A stack of sheets contained in a containing member is loosened at the downstream edges in the feeding direction by air injected from an air injecting device, and fed one by one seriatim from the sheet on top in a predetermined feeding direction by a vacuum suction feeder disposed above the containing member. At this time, an upwardly directed impact is applied to the downstream edges in the feeding direction of the sheets from an impact generating device, thereby improving looseness of the downstream edge faces in the feeding direction by the air.
The sheet fed from the containing member is returned to the bottom of the stack of sheets on the containig member. At this time, a claw formed on a feed roller pushes up the upstream edges in the returning direction of the sheet so as to force the sheet completely into the containing member.

REFERENCES:
patent: 4368973 (1983-01-01), Silverberg
patent: 4384782 (1983-05-01), Acquaviva
patent: 4413901 (1983-11-01), Kollar
patent: 4595190 (1986-06-01), Amarakoon
patent: 4699369 (1987-10-01), Zirilli
patent: 4703923 (1987-11-01), Anderson et al.
patent: 4893804 (1990-01-01), Sasage et al.

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