Sheet separating device with automatic adjustment of distance be

Details Sheet separating device with automatic adjustment of distance be Sheet separating device with automatic adjustment of distance be

1995-09-14

1997-10-21

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

Separators

271125, B65H 352

Patent

active

056788177

ABSTRACT:
A sheet feeding device has a feed roller with a plurality of large-diameter portions and a retard roller having a plurality of large-diameter portions alternately disposed with respect to the large-diameter portions of the feed roller. Originals are individually separated between the feed roller and the retard roller. The distance between the two rollers is automatically adjusted so that when a load caused by a separated sheet in a sheet feeding direction is large, the amount of overlap between the large-diameter portions of the two rollers is reduced, and when the load is small, the amount of overlap is increased. Thus, optimum separation is performed in accordance with the thickness of the sheet and the coefficient of friction of the surface of the sheet.

REFERENCES:
patent: 5435540 (1995-07-01), Martin et al.
patent: 5449162 (1995-09-01), Saito

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