Retard sheet separator-feeder with retarded sheets kickback redu

Details Retard sheet separator-feeder with retarded sheets kickback redu Retard sheet separator-feeder with retarded sheets kickback redu

1998-09-14

2000-05-09

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

Separator and conveyor

271 1011, 271114, 271122, B65H 500

Patent

active

060592796

ABSTRACT:
A retard sheet feeder-separator for separating and sequentially feeding sheets with a frictional sheet feeding roller, driven via a drive train by an intermittently connected rotational drive system, feeding an individual sheet past an engaging frictional retard roller, forming a sheet retard nip therewith for holding back the other sheets, to a downstream sheet feeding nip. A flywheel having a rotational moment of inertia substantially greater than that of the drive train and the sheet feeding roller is connected to the outer end of the drive train to reduce kickback of the retarded sheets in the retard nip, especially where the retard roller is rotatable forward with a high torque drag but has kickback upon release of a fed sheet from the retard nip. Additionally, a low torque drag system is provided between the drive system and the drive train, operative even when the intermittent sheet feeding drive is disconnected, to bias out any backlash in the drive train between the flywheel and the sheet feeding roller.

REFERENCES:
patent: 5158279 (1992-10-01), Laffey et al.
patent: 5421569 (1995-06-01), Davidson
patent: 5435538 (1995-07-01), Billings et al.
patent: 5435539 (1995-07-01), Namiki
patent: 5534989 (1996-07-01), Rubscha et al.
patent: 5630580 (1997-05-01), Tsao et al.
patent: 5709380 (1998-01-01), Petocchi et al.
patent: 5769410 (1998-06-01), Davidson et al.
patent: 5984298 (1999-11-01), Wada et al.

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