Browse Prior Art Database

Self Adjusting Document Feed Separating Device

IP.com Disclosure Number: IPCOM000108676D
Original Publication Date: 1992-Jun-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 2 page(s) / 68K

Publishing Venue

IBM

Related People

Young, SL: AUTHOR

Abstract

Disclosed is a document-separating device which provides an additional document restraint flexibility beyond that of fixed engagement feedroller and counter-rotating roller (CRR) separators. It is useful for feeding documents such as old money or checks as well as new paper documents. The disclosed device is insensitive to variations in the engagement due to wear on the friction surfaces of the CRR tires as well as changes in the operating environment that cause the rubber of the feedroller and CRR to expand or contract.

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This is the abbreviated version, containing approximately 71% of the total text.

Self Adjusting Document Feed Separating Device

       Disclosed is a document-separating device which provides
an additional document restraint flexibility beyond that of fixed
engagement feedroller and counter-rotating roller (CRR) separators.
It is useful for feeding documents such as old money or checks as
well as new paper documents.  The disclosed device is insensitive to
variations in the engagement due to wear on the friction surfaces of
the CRR tires as well as changes in the operating environment that
cause the rubber of the feedroller and CRR to expand or contract.

      Referring to Figs. 1 and 2, the device consists of a
feedroller/CRR pinchpoint through which all documents pass. The
feedroller 1 drives the top document 11 through the pinchpoint.  The
CRR 2 rotates in the opposite direction of the feedroller separating
and restraining documents 13 other than the top document from passing
through the pinchpoint.

      Disclosed is the addition of free-turning idlers 3 which are
mounted in the gaps of the tires of the feedroller.  A rubber tire of
the CRR rides upon each of the feedroller idlers under pressure.  The
pressure of the CRR against the feedroller idlers plus the amount of
engagement between the CRR and feedroller provide the restraint
force.  The feedroller force is a function of the amount of
engagement only.  The idlers are free-turning to prevent a wear
condition from the contact of the CRR with the feedroller when no
documents...