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Document Aligning Device for Two Transport Directions

IP.com Disclosure Number: IPCOM000081191D
Original Publication Date: 1974-Apr-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 56K

Publishing Venue

IBM

Related People

Gutteling, J: AUTHOR

Abstract

This is a document aligning device that maintains a document in alignment for scanning, while moving it alternately up and down for multiple line reading.

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Document Aligning Device for Two Transport Directions

This is a document aligning device that maintains a document in alignment for scanning, while moving it alternately up and down for multiple line reading.

A document 1 enters the aligning station, e. g., from the right, transported by means, not shown, over base plate 2. Base plate 2 is provided with an aligner guide 3 along one edge and with a depression 4 (see detail) at the aligning station. Depression 4 has the shape of a circle segment, providing room for aligner wheel 5 to protrude through the plane of base plate 2.

Aligner wheei 5 is positioned at an angle (e.g., 45 degrees) with the vertical and is driven by a spindle 6 via a pair of conical gears 7. Shaft 8 of the aligner wheel 5 is free to bidirectionally pivot around spindle 6 from a central position under the influence of the aligner wheel driving torque, since it is mounted on a hinged plate 9. However, this pivoting is limited to a small angle (e.g., 5 degrees) by rubber cushion blocks 10, which produce a counteracting spring force. A pair of micro-switches 11 are mounted adjacent to blocks 10 and are operated when a predetermined pivot angle is exceeded.

In operation, the aligner wheel 5 is driven by the driving torque in the direction of transport and, being differentially driven, directed towards the aligner guide 3 caused by the document drag. As soon as the document 1 is seized by the high friction hollow tire 12 of the aligner wheel 5, the...