Browse Prior Art Database

MANUFACTURING METHOD FOR MAKING FIBER BRUSHES

IP.com Disclosure Number: IPCOM000025374D
Original Publication Date: 1985-Feb-28
Included in the Prior Art Database: 2004-Apr-04
Document File: 4 page(s) / 112K

Publishing Venue

Xerox Disclosure Journal

Abstract

Carbon fiber brushes are used in some copiers to eliminate static electricity from sheets as they are processed through the copiers. A prominent problem with these brushes is the loss of fibers which find their way into other parts of the copier which are vulnerable to their presence. The fibers cause hardware failure and/or copy quality problems. The source of fiber problems is the fiber mechanical properties combined with the method of assembly of the brush. The trick is to capture and retain all of the bristles during manufacture and handling of the brush, both during assembly into the copier during manufacturing, and service. The difficulty, even if the fibers were not susceptible to breakage, is in retaining them within the support frame. U.S. Patent No. 3,689,117 deals with a process of doing that by looping the fibers around a rod and then securing them by the use of an adhesive and crimped sheet metal. In U.S. Patent No. 4,330,349, a method of automating the process of making brushes is disclosed that installs the fibers in a straight bundle that is crimped on the end.

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Page 1 of 4

XEROX DISCLOSURE JOURNAL

MANUFACTURING METHOD FOR MAKING FIBER BRUSHES US. CI. 29/826 Stephen Figueria

Proposed Classification

Int. (31. B23p 19/00

EWE PROTECTOR PAD

RIMED SHEET METAL

<CROSS MEMBER FIBER YARN

RETRACTABLE PINS

1 Volume 10 Number 1 January/February 1985

[This page contains 1 picture or other non-text object]

Page 2 of 4

MANUFACTURING METHOD FOR MAKING FIBER BRUSHES (Cont'd)

CUTTING SLOT F/G 3

ILTABLE BASE-

SUPPORT BASE

HOLDING BARS

\ /CUTTING SLOT

FIG. 5

PROTECTIVE ADHESIVE

      - SUPPORTS FRAME FRAME

( CUTTING LINE\ 1

LOOP END

FIBERS

2

    XEROX DISCLOSURE JOURNAL Volume 10 Number 1 January/February 1985

[This page contains 1 picture or other non-text object]

Page 3 of 4

MANUFACTURING METHOD FOR MAKING FIBER BRUSHES (Cont'd)

Carbon fiber brushes are used in some copiers to eliminate static electricity from sheets as they are processed through the copiers. A prominent problem with these brushes is the loss of fibers which find their way into other parts of the copier which are vulnerable to their presence. The fibers cause hardware failure and/or copy quality problems. The source of fiber problems is the fiber mechanical properties combined with the method of assembly of the brush. The trick is to capture and retain all of the bristles during manufacture and handling of the brush, both during assembly into the copier during manufacturing, and service. The difficulty, even if the fibers were not susceptible to breakage, is in retaining them within the support frame. U.S. Patent No. 3,689,117 deals with a process of doing that by looping the fibers around a rod and then securing them by the use of an adhesive and crimped sheet metal. In U.S. Patent No. 4,330,349, a method of automating the process of making brushes is disclosed that installs the fibers in a straight bundle that is crimp...