Browse Prior Art Database

SHEET SEPARATOR AND FEEDER

IP.com Disclosure Number: IPCOM000025164D
Original Publication Date: 1983-Dec-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 69K

Publishing Venue

Xerox Disclosure Journal

Abstract

The illustrated sheet feeder incorporates a paddle wheel separator device 1 as a replacement for the combing wheel in the sheet feeder described in U.S. Patent No. 4,113,245. The wheel 1 is arranged for driving rotation on the pivotal arm 2 by a suitable drive belt and pulleys in the arm 2 which is limited in its downward pivotal movement relative to the top of the sheet stack 5 by an adjustable stop 4.

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KEROX DISCLOSURE JOURNAL

SHEET SEPARATOR AND FEEDER Proposed Robert P. Rebres Classification

U.S. C1. 271/10 Int. C1. B65h 5/00

The illustrated sheet feeder incorporates a paddle wheel separator device 1 as a replacement for the combing wheel in the sheet feeder described in U.S. Patent No. 4,113,245. The wheel 1 is arranged for driving rotation on the pivotal arm 2 by a suitable drive belt and pulleys in the arm 2 which is limited in its downward pivotal movement relative to the top of the sheet stack 5 by an adjustable stop 4.

A "feed" logic signal may be arranged to move the wheel 1 into contact with the stack at a prescribed interference. This interference or penetration is maintained by stopping the downward paddle wheel axis at a fixed position using the stop 4 and by the use of a motor driven elevator tray 6 for maintaining the stack height at a predetermined postion. Another logic signal may be utilized to raise the arm 2 to remove the wheel 1 from the stack upon adequate separation of the top sheet therefrom.

Volume 8 Number 6 November/December 1983 473

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SHEET SEPARATOR AND FEEDER (Cont'd)

As a sheet is separated from the stack by the wheel I, the leading edge of the sheet is directed into the nip of take-away rollers 7, 8. A sensor 9 is located immediately after the nip to sense the leading edge of the sheet as indicative of adequate separation of the sheet and to effect the production o...