Sheet feeder with skew control

Details Sheet feeder with skew control Sheet feeder with skew control

1989-03-23

1991-01-15

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

Separators

271121, 271226, 271264, B65H 306

Patent

active

049847783

ABSTRACT:
An apparatus for feeding sheets has a surface over which a sheet may be fed, a sheet feeder for feeding sheets over the surface having a centerline of feed parallel to the direction of sheet feeding and at least one idler roll to inhibit skewing of a sheet being fed by the sheet feeder which is mounted for rotational contact with a sheet being fed on the centerline of the sheet feeder whereby a torque is not imparted to a sheet being fed in either the clockwise direction. The idler roll has a high frictional contact surface and is mounted to provide a low drag force in the feeding direction and a high lateral drag force to inhibit a sheet being fed from skewing.

REFERENCES:
patent: 3176980 (1963-01-01), Mitchell et al.
patent: 3430948 (1969-03-01), Sage
patent: 3601392 (1971-08-01), Spears, Jr. et al.
patent: 3893662 (1975-07-01), Boyd
patent: 3970299 (1976-07-01), Berger, Jr. et al.
patent: 3980295 (1976-09-01), Kleid
patent: 4130275 (1978-12-01), Rozga
patent: 4214689 (1980-07-01), Bartel et al.
patent: 4676498 (1987-06-01), Kanemitsu et al.
patent: 4795070 (1989-01-01), Blanding et al.
IBM Technical Disclosure Bulletin, vol. 20, No. 4, Sep. 1977, Author: R. A. Lamos, Title: Aligning Sheet Feeder.
Xerox Disclosure Journal, vol. 12, No. 1, Jan./Feb. 1987, Author: William D. Milillo, Title: Document Feeder Edge Biasing Device.
Cole, "Controlled Skew Feed Roll Shaft", IBM Technical Disclosure Bulletin, vol. 19, No. 3, 8-1976.

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