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Browse Prior Art Database

SHEET FEED BELT

IP.com Disclosure Number: IPCOM000025418D
Original Publication Date: 1985-Apr-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 52K

Publishing Venue

Xerox Disclosure Journal

Abstract

This disclosure relates a feed belt for use in an electrographic copier or printer. The feed belt is used to feed the top sheet off a stack of sheets. Certain tension is required in the feed belt in order to drive a mating rotating retard roller which prevents the feeding of more than one sheet at a time. This tension may not be maintained with a fabric reinforced belt. To impart the necessary stiffness and to maintain the critical tension, fiberglass tensioning members are used. The belt comprises two layers.

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XEROX DISCLOSURE JOURNAL

SHEET FEED BELT Ernel Simpson
Ray Povio

Proposed Classification
U.S. CI. 355/14SH

Int. CI. G03g 15/00

This disclosure relates a feed belt for use in an electrographic copier or printer. The feed belt is used to feed the top sheet off a stack of sheets. Certain tension is required in the feed belt in order to drive a mating rotating retard roller which prevents the feeding of more than one sheet at a time. This tension may not be maintained with a fabric reinforced belt. To impart the necessary stiffness and to maintain the critical tension, fiberglass tensioning members are used. The belt comprises two layers.

The inner layer is laterally ridged to form a standard timing belt. This is formed from a sleeve of treated nylon which has a very low coefficient of friction. This treated nylon sleeve also controls the transverse stiffness of the belt. The teeth are formed by molding polyisoprene into the treated nylon. The outer layer of the nylon sleeve is stiffened by fiberglass cords made with S and 2 twist, known in the art, to offset improper tracking.

The outer layer is cornposed of polyisoprene which provides for high friction and good aging characteristics. The polyisoprene is then molded onto this inner s I eeve.

Volume 10 Number 2 March/April 1985 99

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   XEROX DISCLOSURE JOURNAL Volume 10 Number 2 March/April 1985

100

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