Browse Prior Art Database

IN-LINE SHEET FOLDER

IP.com Disclosure Number: IPCOM000026672D
Original Publication Date: 1993-Feb-28
Included in the Prior Art Database: 2004-Apr-06

Publishing Venue

Xerox Disclosure Journal

Abstract

Folding of sheets in the printing field has been done for many years. However, the mechanisms used to accomplish the folding are complex, cumbersome, large and costly. Also, prior folding mechanisms necessitated long runs of sheets with multiple elements gradually turning each sheet over upon itself. Obviously, these prior mechanisms will not answer the present need for a folding a paratus that will process sheets from high speed printers located in

This text was extracted from a PDF file.
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Page 1 of 10

XEROX DISCLOSURE JOURNAL

IN-LINE SHEET FOLDER Proposed Jack R. Oagley Classification

U.S. c1.493/399 Int. C1. B31b 1/26

10

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FIG. 1

B

22

FIG. 3

FIG. 2

XEROX DISCLOSURE JOURNAL - Vol. 18, No. 1 Januarymebruary 1993 113

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

Page 2 of 10

IN-LINE SHEET FOLDER(Cont'd)

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20 FIG. 4A

FIG. 4b

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

Page 3 of 10

IN-LINE SHEET FOLDER(Cont'd)

FIG. 6C

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FIG. 7B

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FIG. 8A

FIG. 8C

XEROX DISCLOSURE JOURNAL - Vol. 18, No. 1 Januarymebruary 1993 115

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

Page 4 of 10

IN-LINE SHEET FOLDER(Cont'd)

r I

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FIG. 10

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FIG. I 7B

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116 XEROX DISCLOSURE JOURNAL - Vol. 18, No. 1 Januarymebruary 1993

FIG. 11A

FIG.

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Page 5 of 10

IN-LINE SHEET FOLDER(Cont'd)

12B

A FIG. 12A

FIG. 12B

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FIG. 13

XEROX DISCLOSURE JOURNAL - Vol. 18, No. 1 JanuaryFebruary 1993 117

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

Page 6 of 10

IN-LINE SHEET FOLDER(Cont'd)

FIG. 74A

102

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105 16 106

FIG. 74B

118 XEROX DISCLOSURE JOURNAL - Vol. 18, No. 1 January/February 1993

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

Page 7 of 10

IN-LINE SHEET FOLDER(Cont'd)

Folding of sheets in the printing field has been done for many years. However, the mechanisms used to accomplish the folding are complex, cumbersome, large and costly. Also, prior folding mechanisms necessitated long runs of sheets with multiple elements gradually turning each sheet over upon itself. Obviously, these prior mechanisms will not answer the present need for a folding a paratus that will process sheets from high speed printers located in

Accordingly, as a solution to this problem, an in-line sheet folder is disclosed which folds parallel to the direction of travel at high velocities, is low in cost, requires minimal space and provides a variable fold option. The folder apparatus employs two die rolls to create a crease in the sheet, two control rolls for reducing skew while creasing of the sheet is taking place, a control chute for folding the sheet after it leaves the die rolls, and two pressure fold rolls adapted to complete the fold.

more con F ined spaces and at a reduced unit manufacturing cost.

With reference to Figure 1, the printer feeds sheets through an output transport to the device of the present invention depicted as 12 for folding. Individual sheets are captured by a pair of control rolls 14 and fed toward spring loaded sheet crease die rolls 15 and 16. Die roll 15 is loaded against roll 16 by a spring 13. The control rolls maintain sheet transport in a given direction and inhibit lateral movement of the sheets. As a sheet 11 enters scoring or crease die rolls 15 and 16, the beveled edge outer surface of spring loaded roll 15 compresses t...