Sheet-stacking device, suction conveyor, and suction belt for sh

Details Sheet-stacking device, suction conveyor, and suction belt for sh Sheet-stacking device, suction conveyor, and suction belt for sh

1999-03-04

2000-10-17

Ellis, Christopher P.

Sheet feeding or delivering

Feeding

By means to convey sheet

271188, 271197, 271308, B65H 2970, B65H 2932, B65H 502, B65H 2954

Patent

active

061319015

ABSTRACT:
A suction conveyor conveys sheets which are stacked in a hopper of a sheet stacker. The suction conveyor includes a suction box and a suction belt that cycles along the surface of the suction box. Porous sections, having sets of suction holes or the like, are formed intermittently at a prescribed pitch on the suction belt. The leading section of the sheet is suctioned to these porous sections, and the sheets are conveyed by the motion of the belt. A scraper at a terminal end region of the conveyance path forcibly peels off the sheet from the porous sections of the suction belt. The sheets are dropped down with the trailing end dropping before the leading end and are stacked in the hopper.

REFERENCES:
patent: 3452982 (1969-07-01), Bischoff
patent: 3796424 (1974-03-01), Fox
patent: 4027873 (1977-06-01), Bishop
patent: 4295737 (1981-10-01), Silverberg
patent: 4436302 (1984-03-01), Frye et al.
patent: 4905843 (1990-03-01), Holbert
patent: 5014978 (1991-05-01), Smith et al.
patent: 5074547 (1991-12-01), Smith et al.
patent: 5161796 (1992-11-01), Okamoto
patent: 5203556 (1993-04-01), Smith et al.
patent: 5562281 (1996-10-01), Honda et al.
patent: 5671920 (1997-09-01), Aquaviva et al.

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