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EP0127479A1 - Transportvorrichtung für Dokumente - Google Patents

Transportvorrichtung für Dokumente Download PDF

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Publication number
EP0127479A1
EP0127479A1 EP84303603A EP84303603A EP0127479A1 EP 0127479 A1 EP0127479 A1 EP 0127479A1 EP 84303603 A EP84303603 A EP 84303603A EP 84303603 A EP84303603 A EP 84303603A EP 0127479 A1 EP0127479 A1 EP 0127479A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
tray
transport system
document
bands
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP84303603A
Other languages
English (en)
French (fr)
Inventor
Harry James Charles Etherington
Paul Carter Joslin
George Rupert Rawson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
REDIFFUSION COMPUTERS Ltd
Original Assignee
REDIFFUSION COMPUTERS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by REDIFFUSION COMPUTERS Ltd filed Critical REDIFFUSION COMPUTERS Ltd
Publication of EP0127479A1 publication Critical patent/EP0127479A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/16—Inclined tape, roller, or like article-forwarding side registers
    • B65H9/166—Roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B65H5/025—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between belts and rotary means, e.g. rollers, drums, cylinders or balls, forming a transport nip

Definitions

  • the present invention relates to a document transport system.
  • Document transport systems are well known and are used for example to transport documents in a predetermined orientation past the reading head of an optical character reader. If reliable operation is to be obtained, it is necessary to ensure that the transport system flattens the document, positions it accurately relative to datum edges, and then moves it past the reading head in a controlled manner.
  • the known transport systems perform adequately with documents of uniform size and condition but do not reliably handle documents with non-uniform characteristics, for example crumpled or creased documents, documents carrying extraneous items such as staples, or documents having a range of dimensions.
  • the known transport systems are of considerable size and complexity and therefore their use involves considerable expense.
  • a document transport system comprising a cylinder rotatable about its major axis, at least two flexible bands wrapped around a portion of the circumference of the cylinder and spaced apart in a direction parallel to the cylinder major axis, a receiving tray and associated guide surface arranged such that a generally flat article placed on the tray with one of its edges in contact with the guide surface can be moved across the tray into the nip defined between the cylinder and the flexible bands, and means for driving the cylinder and flexible bands to cause an article introduced into the said nip to be carried on the cylinder beneath the flexible bands in an orientation determined by the initial orientation of the article relative to the guide surface.
  • each of the flexible bands is continuous and passes around at least two pulleys arranged such that only one side of the length of band extending between the pulleys bears against the cylinder.
  • the document receiving tray terminates in an edge between the bands and the cylinder adjacent to one of the points at which the bands and cylinder come into contact.
  • a document stripping device is provided which terminates in an edge located between the bands and the cylinder adjacent to the other point at which the bands and cylinder come into contact.
  • a first pulley may be located above the cylinder, a second pulley below the cylinder, and a third pulley on the side of the cylinder remote from the tray, the lengths of band extending between the first and second pulleys wrapping around approximately half the circumference of the cylinder.
  • a reading head may be located to scan documents held between the cylinder and bands.
  • a drive roller and co-operating pinch roller may be provided to guide and drive documents to the nip between the cylinder and the bands, the drive roller having its axis of rotation inclined to a normal drawn from the guide-surface such that a document against which the drive roller bears is moved into contact with and thereafter urged against the guide surface as it is simultaneously moved towards the nip.
  • the drive roller is mounted above the tray and the pinch roller may be located below the tray to contact the drive roller via an aperture in the tray.
  • the drive roller preferably is provided with a resilient surface and may be supported such that it has a controlled degree of freedom of movement to accommodate documents having a variety of characteristics.
  • the pinch roller is preferably crowned.
  • the system comprises . a document receiving tray 1 parallel to the rotation axis of a cylinder 8 one edge of the tray is defined by a guide surface 2 which is orthogonal to the tray 1 or at an obtuse angle thereto.
  • a drive roller 3 is mounted above the tray and bears against a free running roller 4 through an aperture in the tray.
  • the axis of the roller 3 is inclined to the surface 2 such that as it rotates in the direction of arrow 5 any document located between it and the roller 4 is driven to the right in the drawings and is also urged towards the guide surface 2.
  • Documents fed onto the tray 1 are thus fed forwards in the direction of arrow 6 ( Figure 2) with one edge of the document in contact with the guide surface 2.
  • the drive roller 3 mounted below the tray with the free running roller 4 above the tray although this is not the presently preferred arrangement.
  • the tray 1 terminates in an edge 7 adjacent the surface of a cylinder 8 which is free to rotate about its major axis.
  • the cylinder has a central portion 9 of greater diameter than end portions 10.
  • Two flexible endless bands 11, 12 are wrapped around approximately half the circumference of the cylinder and also pass around three pulleys 13,14 and 15.
  • the pulley 18 is driven by a motor 16 via a belt 17.
  • a document stripper 18 is located beneath the cylinder to separate documents from the cylinder and feed them into an outlet chute 19.
  • Sensors 20 detect the presence of a document on the tray 1 and on the cylinder and may be used to control the energisation of the drive motor, and a reading head 21 is provided to scan a document on the cylinder.
  • a document is placed on the tray 1 adjacent the guide face 2 in roughly the orientation that it is desired the document should maintain during its passage through the transport system.
  • the document is then engaged between roller 4 and 5 and driven forwards towards the nip defined between the cylinder 8 and the flexible bands 11 and 12, any misalignment of the document being corrected as a result of the document being urged against the guide face 2.
  • the document is then gripped between the cylinder 8 and the bands 11,12 and as a result is wrapped around the cylinder, moving with it past the reading head 21.
  • the document is then stripped from the cylinder and discharged into the chute 19.
  • the described embodiment of the invention can reliably handle documents having a wide range of characteristics, for example, documents of different widths, lengths and thicknesses, documents comprising several layers of paper, and documents "which are creased, crumpled or have items such as staples inserted in them.
  • the described embodiment is also relatively cheap to produce and yet compact as the position of document is achieved in a very short distance, generally only a fraction of the length of the document itself.
  • the receiving tray and guide face are preferably coated with a low friction material.
  • the surface roller 3 rendered flexible by being made of a suitable material which is slotted, while the surface of the roller 4 is crowned. This arrangement enables a wide variety of documents to be reliably handled. Further, the roller 3 may be mounted so as to have a controlled degree of freedom of movement in the vertical direction and in the horizontal direction to allow the system to handle for example abnormally thick documents.
  • the flexible drive bands 11 and 12 firmly hold documents in contact with the cylinder and can accommodate abnormal documents. They also assist in flattening any deformed documents.
  • the bands 11 and 12 are driven by motor 16 and in turn drive the cylinder 8. It will be appreciated however that alternative drive arrangements could be provided, e.g. independent drives to the bands and the cylinder, or drive to the cylinder only. Furthermore, means may be provided for monitoring the speed of the drive to the system.
  • the reduced diameter of the end portions 10 of the cylinder makes it easy to remove debris falling from documents and also allows for extraneous items such as staples at the edges of documents.
  • the reading head 21 may of course take various forms depending on the information to be read, for example an optical character reader, a magnetic reader, or an electrostatic reader.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Conveyance By Endless Belt Conveyors (AREA)
  • Conveying Record Carriers (AREA)
  • Image Input (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP84303603A 1983-05-31 1984-05-29 Transportvorrichtung für Dokumente Withdrawn EP0127479A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838314890A GB8314890D0 (en) 1983-05-31 1983-05-31 Document transport system
GB8314890 1983-05-31

Publications (1)

Publication Number Publication Date
EP0127479A1 true EP0127479A1 (de) 1984-12-05

Family

ID=10543573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84303603A Withdrawn EP0127479A1 (de) 1983-05-31 1984-05-29 Transportvorrichtung für Dokumente

Country Status (3)

Country Link
EP (1) EP0127479A1 (de)
JP (1) JPS6071442A (de)
GB (1) GB8314890D0 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485786A1 (de) * 1990-10-26 1992-05-20 Canon Kabushiki Kaisha Blattzuführgerät
US5284333A (en) * 1990-10-26 1994-02-08 Canon Kabushiki Kaisha Sheet feeding apparatus
EP0866009A1 (de) * 1997-03-17 1998-09-23 Xerox Corporation Bogenausrichte-Vorrichtung mit einer kraftvermindernden Ausrichterolle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE554957C (de) * 1930-08-28 1932-07-15 E H Georg Spiess Dr Ing Selbsttaetiger, mit Saugduesen arbeitender Bogenanleger mit von den Bogenfuehleinrichtungen gesteuertem Vorschub des ausgestrichen oder gestaffelt geschichteten Stapels
GB2007195A (en) * 1977-11-03 1979-05-16 Omg Off Macch Grafic Sheet and/or signature stacking machine
DE2806503A1 (de) * 1978-02-16 1979-08-23 Geisler Guenther Vereinzelungsverfahren fuer das bedrucken von saecken mit ventil und boden
DE3045359A1 (de) * 1979-09-08 1982-07-01 Fritz 2000 Hamburg Daub "vorrichtung zum wenden einzelner zuschnitte aus papier oder folie"
AT370380B (de) * 1979-06-07 1983-03-25 Gao Ges Automation Org Transportvorrichtung fuer blattgut

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE554957C (de) * 1930-08-28 1932-07-15 E H Georg Spiess Dr Ing Selbsttaetiger, mit Saugduesen arbeitender Bogenanleger mit von den Bogenfuehleinrichtungen gesteuertem Vorschub des ausgestrichen oder gestaffelt geschichteten Stapels
GB2007195A (en) * 1977-11-03 1979-05-16 Omg Off Macch Grafic Sheet and/or signature stacking machine
DE2806503A1 (de) * 1978-02-16 1979-08-23 Geisler Guenther Vereinzelungsverfahren fuer das bedrucken von saecken mit ventil und boden
AT370380B (de) * 1979-06-07 1983-03-25 Gao Ges Automation Org Transportvorrichtung fuer blattgut
DE3045359A1 (de) * 1979-09-08 1982-07-01 Fritz 2000 Hamburg Daub "vorrichtung zum wenden einzelner zuschnitte aus papier oder folie"

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485786A1 (de) * 1990-10-26 1992-05-20 Canon Kabushiki Kaisha Blattzuführgerät
US5284333A (en) * 1990-10-26 1994-02-08 Canon Kabushiki Kaisha Sheet feeding apparatus
EP0866009A1 (de) * 1997-03-17 1998-09-23 Xerox Corporation Bogenausrichte-Vorrichtung mit einer kraftvermindernden Ausrichterolle
US5967511A (en) * 1997-03-17 1999-10-19 Xerox Corporation Sheet registration assembly including a force reducing deskew roll

Also Published As

Publication number Publication date
GB8314890D0 (en) 1983-07-06
JPS6071442A (ja) 1985-04-23

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850806

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ETHERINGTON, HARRY JAMES CHARLES

Inventor name: JOSLIN, PAUL CARTER

Inventor name: RAWSON, GEORGE RUPERT