Mechanism for stacking sheets

Details Mechanism for stacking sheets Mechanism for stacking sheets

1974-09-16

1976-04-13

Love, John J.

Sheet feeding or delivering

Delivering

With transfer means between conveyor and receiver

271214, 271219, B65H 2922, B65H 3114

Patent

active

039499812

ABSTRACT:
A sheet stacking mechanism neatly stacks a plurality of sheets, which may be of dissimilar sizes, thicknesses and surface quality (finishes), in the original sequence in which the sheets are fed into the mechanism. An outfeed mechanism picks each sheet into the stacker and removes each sheet entering into the stacker away from the throat of the stacker to permit unimpeded entry of the next sheet to the stacker. Anti-skewing devices are employed at various locations to maintain the sheets in proper alignment during stacking. Linkage means having a mechanical advantage greater than one interconnects a biasing spring to a stacker bar to provide elongation of the spring inversely proportional to the distance moved by the bar in response to the accumulation of stacked sheets thereon to render more uniform the force exerted on the bar by the spring means to provide uniform stacking.

REFERENCES:
patent: 141491 (1873-08-01), Clark
patent: 2844373 (1958-07-01), Van Marle
patent: 3162438 (1964-12-01), Perry
patent: 3420149 (1969-01-01), Middleditch et al.

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