Browse Prior Art Database

Stacker

IP.com Disclosure Number: IPCOM000086783D
Original Publication Date: 1976-Sep-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Bakker, PC: AUTHOR [+5]

Abstract

Each document approaching the stacker in a first direction is moved along a guiding plate 1, partly curved in a second direction by an endless flat belt 2, which is in close contact with the plate. The document is then transported by a second endless belt 3, having a plurality of projections for securing a gripping force on the trailing edge of the document. The second belt 3 is positioned within an elongated slot 4 of the guiding plate 1 and between two guiding rods secured to a shiftable frame 5, in order to accommodate wide variations in document length. As the lower side of the second belt 3 is disposed beneath the guiding plate 1 and the guiding rods 6, a longitudinal bend is applied to the document.

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Stacker

Each document approaching the stacker in a first direction is moved along a guiding plate 1, partly curved in a second direction by an endless flat belt 2, which is in close contact with the plate. The document is then transported by a second endless belt 3, having a plurality of projections for securing a gripping force on the trailing edge of the document. The second belt 3 is positioned within an elongated slot 4 of the guiding plate 1 and between two guiding rods secured to a shiftable frame 5, in order to accommodate wide variations in document length. As the lower side of the second belt 3 is disposed beneath the guiding plate 1 and the guiding rods 6, a longitudinal bend is applied to the document. The effect of this "cupping" action is augmented by two ears 7, formed at the end of the guiding plate 1 for securing flat stacking of the documents.

The second belt 3 runs over a driving roll 8 and an idler roll 9, both mounted on an arm 10, which is pivotable about a fixed pin 11. The position of the second belt 3 is adjustable by screw 12 for adapting the stacking mechanism to the stiffness of the document material and preventing slantwise stacking of documents. Moreover, one of the ends of the arm 10 is provided with a bent wire loop 13 to cause overshooting documents to be pushed down towards a bottom plate 14. The contents of the stacker may be inspected by a photodetector 16, mounted in a pivotable handle 15 and adapted to receive a light beam fro...