Device for aligning leading edges of sheets

Details Device for aligning leading edges of sheets Device for aligning leading edges of sheets

1989-12-22

1991-07-23

Bollinger, David H.

Sheet feeding or delivering

Feeding

With means to align sheet

271253, B65H 904

Patent

active

050337327

ABSTRACT:
A device is provided for aligning leading edges of sheets at adjustable front lays of a feeder wherein the sheets are fed one after the other against the front lays in a conveying direction perpendicular to the leading edges, the front lays being connected to a front-lay shaft so as to be fixed against rotation relative thereto. The front-lay shaft is, in turn, mounted in a first and in a second bearing of the feeder. A swivelling device connected to the front-lay shaft reciprocatingly swivels the front lays about a longitudinal axis of the front-lay shaft. The aligning device includes a bending device for benging the front-lay axis by acting steadily on the front-lay shaft for selectively adjusting the longitudinal axis of the front-lay shaft so that the longitudinal axis has a shape which, respectively, is curved in the conveying direction, curved opposite the conveying direction and rectilinear.

REFERENCES:
patent: 2069918 (1937-02-01), Gegenheimer
patent: 2976038 (1961-03-01), Whyte
patent: 3682472 (1972-08-01), Barthel
patent: 4466350 (1984-08-01), Schilling

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