US3915447A - Horizontal platen belt transport - Google Patents

Horizontal platen belt transport Download PDF

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Publication number
US3915447A
US3915447A US527118A US52711874A US3915447A US 3915447 A US3915447 A US 3915447A US 527118 A US527118 A US 527118A US 52711874 A US52711874 A US 52711874A US 3915447 A US3915447 A US 3915447A
Authority
US
United States
Prior art keywords
belt
sheet
tabs
platen
document
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.)
Expired - Lifetime
Application number
US527118A
Other languages
English (en)
Inventor
Bartholomew J Perno
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Priority to US527118A priority Critical patent/US3915447A/en
Priority to GB42676/75A priority patent/GB1527086A/en
Application granted granted Critical
Priority to CA238,709A priority patent/CA1043367A/en
Publication of US3915447A publication Critical patent/US3915447A/en
Priority to JP50138645A priority patent/JPS607267B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/045—Details of grippers
    • B65H29/048—Self-opening and -closing grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/16—Delivering or advancing articles from machines; Advancing articles to or into piles by contact of one face only with moving tapes, bands, or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/23—Belts with auxiliary handling means
    • B65H2404/231—Belts with auxiliary handling means pocket or gripper type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/23—Belts with auxiliary handling means
    • B65H2404/232—Blade, plate, finger

Definitions

  • the documents to be reproduced are placed in an automatic document handler which sequentially feeds documents to the platen of the machine. .After exposure, the device removes the copied documents and feeds the succeeding document to the platen for copying.
  • Dependable apparatus for carrying out this function of placing documents on the scanning platen constitutes convenience to an operator who would otherwise have to manually change the docu ment and, at the same time, increases the efficiency of the electrostatic reproduction system by permitting more copies to be made in a given time.
  • sheet feeding devices for transporting sheets or documents singly from a stack to a work station are known in the art.
  • known sheet feeding devices are inadequate for dependably keeping pace with the great speed at which electrostatic machines now operate.
  • devices for singly advancing sheets'from a stack are designed to operate at higher speeds, a great number of problems are encountered in attempting to deskew, register, and convey the sheet to a precise position at a work station such as the platen of the reproduction machine.
  • the subject invention relates to a sheet handling mechanism for deskewing, registering, and transporting individual sheets of material including a movable endless belt having a plurality of flexible tabs formed thereon projecting substantially perpendicular from the belt surface, the tabs extending across the belt in a direction perpendicular to the direction of belt travel.
  • Support means having a surface disposed opposite the belt are provided for cooperation therewith, contact of the tabs with the surface of the support means causing the tabs to deform against the surface of the belt.
  • FIG. 1 is a schematic illustration of a document feeding mechanism employing the deskewing, registering, and conveying belt of the present invention
  • an automatic document handler including a document supply tray 2 adapted for receiving a plurality of documents 4 to be fed to the platen 6 of a copy machine. While the copy machine per se is not illustrated, it should be understood that any suitable copy machine such as that illustrated in the aforementioned US. Pat. No. 3,674,363 could be utilized therewith.
  • the document handler includes a separating roll 8 adapted to remove documents individually from the bottom of the stack of documents 4 and forward individual documents to a take-away roll pair 10 which is adapted to forward the single document to a suitable platen belt 12.
  • the belt 12 preferably comprises a single wide belt adapted to completely overlie the platen 6.
  • the belt 12 is supported for movement on main support rolls l4 and 16, roll 16 being driven by a suitable motor 18 for moving the belt 12 relative to the platen 6.
  • a plurality of bias rollers 20 may be provided to maintain the belt 12 against the platen 6 and thereby assure intimate contact of the document fed therebetween during the exposure or copying operation.
  • Platen belt 12 is provided with a plurality of flexible projections 22 suitably formed thereon, as by molding, for reasons to be hereinafter explained.
  • document feeder illustrated is a single path document feeder, i.e., the documents are fed from a first tray through the copying operation to an output tray, it should be understood that suitable means could be provided through a second path to return the documents to tray 2 for repetitive recirculation thereof across platen 6.
  • separator roll 8 and take-away roll pair 10 upon initiation of the copy cycle, separator roll 8 and take-away roll pair 10 would be actuated to feed a document S from tray 2 to the platen belt 12.
  • the rolls 8 and 10 are adapted to overdrive the document slightly against projections 22 to form a buckle in the document as illustrated in FIG. 1. This provides a positive deskewing action to assure proper alignment of the document on the platen when it is transported thereon by the belt 12. It should be understood that as the buckle is forming in the document, the belt 12 is also moving, albeit at a slightly slower speed than the document. Referring to FIG.
  • one of the tabs 22 is utilized for contacting the microswitch to inactivate the motor 18 although it should be understood that a variety of position sensors could be substituted therefore such as photosensors acting in conjuction with openings formed along one edge of the belt etc.
  • the apparatus is again energized to carry the copied document off the platen and present the subsequent document from document tray 12 onto the platen for copying thereof.
  • a sheet handling mechanism for deskewing, registering and transporting individual sheets of material comprising:
  • a movable endless belt having a plurality of flexible tabs formed thereon projecting substantially normal to the belt surface, the tabs extending across the belt in a direction perpendicular to the direction of belt travel; support means having a surface disposed opposite the belt for cooperation therewith, contact of the tabs with the surface of the support means causing the tabs to deform against the surface of the belt;
  • sheet supply means for conveying sheet material to the belt, said sheet supply means being adapted to overdrive the sheet material against the tabs to cause the sheet to be deskewed thereagainst movement of the belt relative to the support means causing the tabs to be deformed toward the surface of the belt to positively grip the lead edge of the sheet material between the tab and the belt surface for subsequent transport of the sheet material by the belt across said support means.
  • a sheet handling mechanism according to claim 1 wherein said support means comprises a platen for a copy machine, the sheet handling mechanism further including:
  • sensing means adapted to sense a predetermined position of said belt for inactivating said drive means to position a sheet carried by said belt at a predetermined position on said platen for copying said sheet.
  • a sheet handling mechanism according to claim 2 wherein said sensing means comprises a microswitch adapted for actuation by movement of said tabs thereagainst.
  • a sheet handling mechanism further including a sheet receiving tray, said tray being located downstream from said platen, movement of said belt to move said tabs gripping the sheets out of contact with said platen allowing said tabs to assume a normal orientation relative to the belt surface to release the lead edge of the sheet subsequent movement of said belt carrying the sheet off said platen into said sheet receiving tray.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Holders For Sensitive Materials And Originals (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Belt Conveyors (AREA)
  • Discharge By Other Means (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Registering Or Overturning Sheets (AREA)
US527118A 1974-11-25 1974-11-25 Horizontal platen belt transport Expired - Lifetime US3915447A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US527118A US3915447A (en) 1974-11-25 1974-11-25 Horizontal platen belt transport
GB42676/75A GB1527086A (en) 1974-11-25 1975-10-17 Apparatus for handling sheets
CA238,709A CA1043367A (en) 1974-11-25 1975-10-28 Horizontal platen belt transport
JP50138645A JPS607267B2 (ja) 1974-11-25 1975-11-18 シート処理機構

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US527118A US3915447A (en) 1974-11-25 1974-11-25 Horizontal platen belt transport

Publications (1)

Publication Number Publication Date
US3915447A true US3915447A (en) 1975-10-28

Family

ID=24100167

Family Applications (1)

Application Number Title Priority Date Filing Date
US527118A Expired - Lifetime US3915447A (en) 1974-11-25 1974-11-25 Horizontal platen belt transport

Country Status (4)

Country Link
US (1) US3915447A (enrdf_load_stackoverflow)
JP (1) JPS607267B2 (enrdf_load_stackoverflow)
CA (1) CA1043367A (enrdf_load_stackoverflow)
GB (1) GB1527086A (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059264A (en) * 1976-05-03 1977-11-22 Redington, Incorporated Method of feeding a leaflet and the apparatus therefor
US4062538A (en) * 1976-01-15 1977-12-13 Xerox Corporation Speed regulated fluidic sheet transport
DE3037321A1 (de) * 1979-10-03 1981-04-16 Xerox Corp., 14644 Rochester, N.Y. Registriersystem fuer die nachlaufende kante eines kopierblattes
US4413902A (en) * 1980-04-09 1983-11-08 Burroughs Corp. Four-bar interposer mechanism for offset printing
USH21H (en) 1984-07-23 1986-02-04 Xerox Corporation Document handling device
US4721981A (en) * 1986-11-03 1988-01-26 Xerox Corporation Low-cost document feeder for copiers
US4807866A (en) * 1985-12-17 1989-02-28 Xerox Corporation Sheet stackers
WO1990003325A1 (en) * 1988-09-30 1990-04-05 Sapia Mekatronik Ab An infeed arrangement
US4919409A (en) * 1986-07-03 1990-04-24 Xerox Corporation Sheet handling apparatus with narrow belt having raised frictional contact element
US5048817A (en) * 1989-10-23 1991-09-17 Xerox Corporation Dynamic edge guide for side registration systems
DE4126577A1 (de) * 1990-10-02 1992-04-09 Agfa Gevaert Ag Verfahren zum handhaben von diapositiven
EP2223878A2 (en) 2009-02-27 2010-09-01 Neopost Technologies Conveyor chain and conveyor for gripping and conveying paper material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55163529A (en) * 1979-06-05 1980-12-19 Mitsui Eng & Shipbuild Co Ltd Card arraying device for copying machine
JPS61188154U (enrdf_load_stackoverflow) * 1986-04-17 1986-11-22

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE643400C (de) * 1935-02-03 1937-04-06 Paul Stadie Pneumatischer Bogenanleger
CH357747A (de) * 1958-05-02 1961-10-31 Mueller Hans Vorschubeinrichtung für zu Broschüren vereinigte Papierbogen zu einer Beschneidvorrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4892940U (enrdf_load_stackoverflow) * 1972-02-07 1973-11-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE643400C (de) * 1935-02-03 1937-04-06 Paul Stadie Pneumatischer Bogenanleger
CH357747A (de) * 1958-05-02 1961-10-31 Mueller Hans Vorschubeinrichtung für zu Broschüren vereinigte Papierbogen zu einer Beschneidvorrichtung

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062538A (en) * 1976-01-15 1977-12-13 Xerox Corporation Speed regulated fluidic sheet transport
US4059264A (en) * 1976-05-03 1977-11-22 Redington, Incorporated Method of feeding a leaflet and the apparatus therefor
DE3037321A1 (de) * 1979-10-03 1981-04-16 Xerox Corp., 14644 Rochester, N.Y. Registriersystem fuer die nachlaufende kante eines kopierblattes
US4487407A (en) * 1979-10-03 1984-12-11 Xerox Corporation Trail edge copy registration system
US4413902A (en) * 1980-04-09 1983-11-08 Burroughs Corp. Four-bar interposer mechanism for offset printing
USH21H (en) 1984-07-23 1986-02-04 Xerox Corporation Document handling device
US4807866A (en) * 1985-12-17 1989-02-28 Xerox Corporation Sheet stackers
US4919409A (en) * 1986-07-03 1990-04-24 Xerox Corporation Sheet handling apparatus with narrow belt having raised frictional contact element
US4721981A (en) * 1986-11-03 1988-01-26 Xerox Corporation Low-cost document feeder for copiers
WO1990003325A1 (en) * 1988-09-30 1990-04-05 Sapia Mekatronik Ab An infeed arrangement
US5156393A (en) * 1988-09-30 1992-10-20 Sapia Mekatronik Ab Infeed arrangement
US5048817A (en) * 1989-10-23 1991-09-17 Xerox Corporation Dynamic edge guide for side registration systems
DE4126577A1 (de) * 1990-10-02 1992-04-09 Agfa Gevaert Ag Verfahren zum handhaben von diapositiven
EP2223878A2 (en) 2009-02-27 2010-09-01 Neopost Technologies Conveyor chain and conveyor for gripping and conveying paper material

Also Published As

Publication number Publication date
JPS5175449A (enrdf_load_stackoverflow) 1976-06-30
CA1043367A (en) 1978-11-28
JPS607267B2 (ja) 1985-02-23
GB1527086A (en) 1978-10-04

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