Browse Prior Art Database

Document Separator

IP.com Disclosure Number: IPCOM000085531D
Original Publication Date: 1976-Apr-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Knappe, LF: AUTHOR

Abstract

The document separator assembly of the figure utilizes three document transport devices of the type shown in U. S. Patent 3,747,921. The document separation function is provided by a single transport device 10 operating against a high-friction pad 11. Transport 10 drives in a direction opposite to the direction of document motion in the machine transport, as indicated by the arrow A. Also, separator 10 operates 180 degrees out-of-phase with respect to both picker transport 12 and aligner transport 13. Thus the separator drive action occurs during the return portion of the cycle of transports 12 and 13, when such devices are withdrawn from driving engagement.

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Document Separator

The document separator assembly of the figure utilizes three document transport devices of the type shown in U. S. Patent 3,747,921. The document separation function is provided by a single transport device 10 operating against a high-friction pad 11. Transport 10 drives in a direction opposite to the direction of document motion in the machine transport, as indicated by the arrow A. Also, separator 10 operates 180 degrees out-of-phase with respect to both picker transport 12 and aligner transport 13. Thus the separator drive action occurs during the return portion of the cycle of transports 12 and 13, when such devices are withdrawn from driving engagement.

Document separator action is produced by unbalanced dynamic forces generated by the separator transport 10. When one document is between the tip of elastomer element 14 and friction pad 11, the forces on such document are balanced and the document will not move unless driven by some other force. With two documents disposed between separator transport element 14 and friction pad 11, the friction between adjoining documents is less than the friction between either document and the adjoining elastomer tip or friction pad.

The sum of the dynamic forces on the bottom document is greater to the rearward (opposite the direction of arrow A) and the sum of forces on the top document is balanced. This causes the separating action. When more than two documents are in the separator station, the forces...