Browse Prior Art Database

Cover Sheet Feeding Apparatus

IP.com Disclosure Number: IPCOM000087662D
Original Publication Date: 1977-Mar-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Related People

Hunt, RE: AUTHOR

Abstract

In document-feeding devices the feeding device often scores or marks the paper which is being fed. This is particularly true in the type of device where the feeding device moves in a scrubbing motion relative to the paper or envelope which is being fed.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 96% of the total text.

Page 1 of 2

Cover Sheet Feeding Apparatus

In document-feeding devices the feeding device often scores or marks the paper which is being fed. This is particularly true in the type of device where the feeding device moves in a scrubbing motion relative to the paper or envelope which is being fed.

Shown is a feeding device which moves relative to the paper which it is to feed such that potentially scoring or marking of the paper would result. A technique is shown which alleviates this marking problem.

The top cover sheet 1 is restrained by a fixed clamp 2. The separator wheel assembly 3, which rotates in the direction of the arrow (counterclockwise), provides a shingling force. Since the clamp 2 is a finite distance from the driving wheel 3, the cover sheet will stretch and feed slightly to the right, as shown in the drawing. The movement to the right will also be imparted to the sheets below because of the shingling phenomenon.

The wheel 3 is designed with rollers 4 to allow a period, during rotation of the wheel, when no roller is driving the paper. During this time, the cover sheet, due to its elasticity, snaps back to its original position. There are no external, vertical loads on the cover sheet during the snap back so the frictional forces between the cover sheet and the sheet below it are not high enough to pull the lower sheet back. This cycle is repeated each time a roller 4 comes around and the sheets below the cover sheet are fed into a utilization unit.

1

Page 2 of...