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Browse Prior Art Database

Document Picker Cam

IP.com Disclosure Number: IPCOM000090467D
Original Publication Date: 1969-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Maliwacki, J: AUTHOR

Abstract

This document feeder comprises a gravity-type bottom feed in which documents are fed from the bottom of the stack in a hopper. Drive pulley 1, rotating in the direction shown, is connected to cammed pulley 2 by separator belt 3. The bottom of hopper 4 has a slotted opening not shown. The parts are arranged so that as pulley 2 rotates, its high lobe extends through the slot, along with belt 3 to frictionally engage the bottommost document in the stack and propel it downwardly toward throat 5. Counterrotating restraint belt 6 prevents more than one document being fed at any one time. Further rotation of pulley 2 causes the lobe portion and belt 3 to move downwardly in the slotted bottom of the hopper, so that the bottommost document is lowered to engage the bottom surface of the hopper.

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Document Picker Cam

This document feeder comprises a gravity-type bottom feed in which documents are fed from the bottom of the stack in a hopper. Drive pulley 1, rotating in the direction shown, is connected to cammed pulley 2 by separator belt 3. The bottom of hopper 4 has a slotted opening not shown. The parts are arranged so that as pulley 2 rotates, its high lobe extends through the slot, along with belt 3 to frictionally engage the bottommost document in the stack and propel it downwardly toward throat 5. Counterrotating restraint belt 6 prevents more than one document being fed at any one time. Further rotation of pulley 2 causes the lobe portion and belt 3 to move downwardly in the slotted bottom of the hopper, so that the bottommost document is lowered to engage the bottom surface of the hopper. The momentary picking effect of the cam and belt arrangement allows time for the first document to be moved out and thus creating a condition which causes jamming. An additional advantage is that the joggling action of the repetitive picking joggles the documents in the hopper and aids a smooth-flow of the documents by gravity feed.

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