EP0430381A2 - Dispositif de transport de supports d'enregistrement à plusieurs épaisseurs et à perforations marginales - Google Patents

Dispositif de transport de supports d'enregistrement à plusieurs épaisseurs et à perforations marginales Download PDF

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Publication number
EP0430381A2
EP0430381A2 EP90250251A EP90250251A EP0430381A2 EP 0430381 A2 EP0430381 A2 EP 0430381A2 EP 90250251 A EP90250251 A EP 90250251A EP 90250251 A EP90250251 A EP 90250251A EP 0430381 A2 EP0430381 A2 EP 0430381A2
Authority
EP
European Patent Office
Prior art keywords
recording medium
tractor
layer
pair
push
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Withdrawn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
EP90250251A
Other languages
German (de)
English (en)
Other versions
EP0430381A3 (en
Inventor
Wolfgang Dipl.-Ing. Hauslaib
Günter Dipl.-Ing. Gomoll
Ulrich Dipl.-Ing. Buschmann
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0430381A2 publication Critical patent/EP0430381A2/fr
Publication of EP0430381A3 publication Critical patent/EP0430381A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/26—Pin feeds
    • B41J11/30—Pin traction elements other than wheels, e.g. pins on endless bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/18—Multiple web-feeding apparatus
    • B41J15/20—Multiple web-feeding apparatus for webs superimposed during printing

Definitions

  • the invention relates to a device for the transport of multilayer, perforated record carriers which are movable on a curved transport path, with a pair of push tractor arranged in front of a pressure abutment in the transport direction and with at least one pair of friction rollers, each with at least one driven friction roller, by means of which a tensile force can be transmitted, whereby the multilayer recording medium lies with its rear layer on the pressure abutment.
  • Devices of this type differ from devices in which only single-layer paper is processed by the necessary modifications in order to compensate for the uneven tension in the front or rear layers of the multi-layer recording medium.
  • Multi-layer recording media consist, for example, of a thicker, "front” original sheet and one or more thinner, “back” sheets of so-called carbon paper.
  • the thicker, front original sheet lies on the push tractor at the bottom, while the thinner carbon papers in the push tractor lie on the top, i.e. directly under the hinged lid that is common on tractors.
  • the invention has for its object to transport multilayered, perforated record carriers with uniform pulling of all layers by means of a push tractor.
  • the push tractor is provided with a braking element for the front position of the multi-layer recording medium that a subsequent one Friction roller pair has a driven friction roller which rests on the front layer of the multi-layer recording medium and which has a slightly smaller movement path per unit of time than the counter friction roller, but that the counter friction roller on the rear layer has a slightly larger movement path than the tractor feed.
  • the resulting tensile forces are advantageously matched to the inner and outer layers of the record carrier, so that individual (rear) layers are subject to only a slight formation of the belly and other layers in the push tractor at the pin holes are not overstressed so that the perforated edge of the paper is damaged could.
  • the drive forces are distributed such that the push tractor with the braking element is arranged in the transport direction in front of the first friction roller pair, followed by the pressure abutment, and that a second pair of friction rollers is provided behind the pressure abutment.
  • the device for the transport of multilayer, perforated record carriers is also equipped with a push tractor which is arranged in the transport direction in front of a pressure abutment and has at least one driven gear wheel, over which an endless toothed belt is guided, which is provided on the outside with pins for engaging in the record carrier is and has a hinged lid with a recess for the pins.
  • the special braking element is created in that the push tractor has a rough braking surface opposite the closed hinged cover, but that the hinged cover that can be pressed onto the inserted recording medium is smooth on its support surface.
  • the front layer which usually forms a thicker form, is braked considerably, the rough braking surface also being able to transmit this braking force, while the rear layer, a thin, weak carbon paper, is unrestrained, i.e. also remains unused accordingly.
  • the push tractor has a rigid guide channel that projects beyond the engagement section of the toothed belt in the transport direction behind the hinged cover. This advantageously results in positive guides which determine the transport direction and which the recording medium can no longer leave.
  • the braking effect of the braking element is further increased by the rough braking surface of grooves, teeth or the like extending transversely to the transport direction of the recording medium. consists.
  • the device is mounted on a base plate 1.
  • the base plate 1 is e.g. Part of the frame of a printer, especially a dot matrix printer.
  • a pressure abutment 2 is fastened between lateral frame parts (which are not visible).
  • In front of the print abutment 2 there is a back and forth movable print head carriage 3 on which a print head 4 is arranged.
  • a tape-shaped recording medium 8, which is perforated at the edges and has multiple layers, is moved by means of the push tractor 5 on a curved transport path 9 in the transport direction 10.
  • the transport path 9 is determined by the push tractor 5 by a first pair of friction rollers 11, by the pressure abutment 2 and by a pair of friction rollers 12.
  • the rollers 11a and 11b are driven in rotation on the pair of friction rollers 11.
  • the multilayer recording medium 8 has the rear, ie very thin layer 8a and a front, thick layer 8b.
  • the thinner layer 8a is generally made of carbon paper and the thicker layer 8b is usually made of thick writing paper as used in typewriters or printers.
  • Several thin and thick layers 8a, 8b can also be present.
  • the layers 8a, 8b are more or less connected to one another by their production.
  • roller 11a By means of a mechanism formed by a compression spring 13 and a slide 14, a control shaft 15 and a spring 16, the roller 11a can be turned against the stationary roller 11b with a controlled force, i.e. be pressed.
  • the rotary drives for the rollers 11a and 11b can transmit different driving forces or rotary movements or rotary paths to the two rollers 11a and 11b.
  • Another friction roller 17 is out of operation during operation with endless recording media 8. It is only required when entering single sheets through a single sheet tray 18.
  • the transport of the record carrier 8 now takes place as follows when using a braking element 19:
  • the push tractor 5 acts with the braking element 19 on the front layer 8b.
  • the following pairs of friction rollers 11 and 12 also act in a special way on the recording medium 8 with a driven friction roller 11a and 11b or 12b.
  • the friction roller 11a rests on the front layer 8b of the multi-layer recording medium 8 and executes a slightly smaller movement path per unit of time than the counter-friction roller 11b.
  • the counter-friction roller 11b has a slightly larger movement path than the tractor feed path.
  • the front layer 8b of the recording medium 8 is braked by the braking element 19
  • the front layer 8b is further braked by the driven friction roller 11a, in that the friction roller 11b is rotated faster, as a result of which a "belly" of the recording medium which arises in the region 20 8 is immediately dismantled at the rear layer 8a.
  • the push tractor 5 (FIG. 2) is specially designed for the transport of multi-layer recording media 8.
  • the push tractor 5, as its name suggests, is arranged in front of the pressure abutment 2.
  • the push tractor 5 has a driven gear 21 mounted on the square shaft 6, over which a toothed belt 22 extends.
  • the toothed wheel 21 engages with its toothing 21a in the counter toothing 22a of the toothed belt 22, which is located on the inside 23 of the toothed belt 22.
  • the counter toothing 22a is supported in the course of the toothed belt 22 on a stationary guide track 24 which is provided on the tractor housing 25.
  • the toothed belt 22 has pins 26 arranged on the outside.
  • the pins 26 engage, as usual, in the peripheral perforations of the recording medium 8 which are present in the so-called leporello paper.
  • the toothed belt 22 is also guided over a tractor body 27 (FIG. 4).
  • the push tractor 5 also has a hinged cover 28 with a recess 29 for the pins 26.
  • the push tractor 5 with the braking element 19 now has a rough braking surface 30 opposite in the closed hinged cover 28 (FIG. 2), which represents the braking element 19.
  • the hinged lid 28 which can be pressed onto the inserted recording medium 8 is smooth on its inner bearing surface 31.
  • the push tractor 5 also shows, in the transport direction 10 behind the hinged cover 28, a rigid guide channel 32 projecting beyond the engagement crunch of the toothed belt 22. This guide channel 32 extends, as shown in FIG.
  • the hinged cover 28 is adapted to the outer circumference or the radius and its rounding of the tractor body 27 when the toothed belt 22 is in place.
  • the rough braking surface 30 consists of grooves 33 or the like running transversely to the transport direction 10 of the recording medium 8.
  • the guide channel 32 is formed somewhat higher in a first section 32a in the region of the pins 26. Then a second section 32b takes into account the number of layers 8a, 8b of the drawing carrier 8.
  • the hinged cover 28 is mounted on the tractor body 27 by means of a metal bracket 34. It can be folded into a tilted position 28 'over the metal bracket 34.
  • the relationships between the radii and paper lengths are shown again schematically in FIG. 5:
  • the layer 8a (rear, thin layer) is guided around the radius R1 and has the paper length l1 '.
  • the layer 8b front, thicker layer
  • l1 becomes smaller than l2.
  • l1 ' is equal to l2.

Landscapes

  • Handling Of Sheets (AREA)
EP19900250251 1989-11-27 1990-10-04 Device for transporting multilayer and margin-perforated recording supports Withdrawn EP0430381A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3939507A DE3939507C1 (fr) 1989-11-27 1989-11-27
DE3939507 1989-11-27

Publications (2)

Publication Number Publication Date
EP0430381A2 true EP0430381A2 (fr) 1991-06-05
EP0430381A3 EP0430381A3 (en) 1991-09-25

Family

ID=6394443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900250251 Withdrawn EP0430381A3 (en) 1989-11-27 1990-10-04 Device for transporting multilayer and margin-perforated recording supports

Country Status (3)

Country Link
US (1) US5061096A (fr)
EP (1) EP0430381A3 (fr)
DE (1) DE3939507C1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519945B1 (fr) * 1990-03-16 1993-11-24 MANNESMANN Aktiengesellschaft Procede pour le positionnement d'un support d'enregistrement en bandes dans une imprimante
DE4205777C2 (de) * 1992-02-21 1994-10-13 Mannesmann Ag Drucker für die Verarbeitung von Aufzeichnungsträgern unterschiedlicher Dicke in Form von Einzelblättern und Endlosbahnen
DE4207953C2 (de) * 1992-03-10 1994-11-24 Mannesmann Ag Drucker mit einem Antrieb für den positionsgenauen Vorschub eines Aufzeichnungsträgers in Form eines Einzelblattes oder einer Endlosbahn
DE19547293C1 (de) * 1995-12-18 1997-05-28 Oce Printing Systems Gmbh Vorrichtung zum Transport von mit Randlochungen versehenen Aufzeichnungsträgern
DE19749603C2 (de) * 1997-11-10 1999-11-25 Oce Printing Systems Gmbh Vorrichtung zum traktorlosen Transport eines bandförmigen Aufzeichnungsträgers in einem elektrografischen Druck- oder Kopiergerät
JP3440205B2 (ja) * 1998-06-01 2003-08-25 富士ゼロックス株式会社 用紙搬送装置
JP3911921B2 (ja) * 1999-09-17 2007-05-09 富士ゼロックス株式会社 連続用紙処理装置およびトラクタ
US8109682B2 (en) * 2007-12-07 2012-02-07 Toshiba Tec Kabushiki Kaisha Printer for a plurality of layered sheets

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746142A (en) * 1971-12-13 1973-07-17 Ncr Line printer paper tensioning mechanism
IT1022388B (it) * 1974-09-27 1978-03-20 Honeywell Inf Systems Meccanismo di trasporto carta per stampante a piu copie
DE3342105A1 (de) * 1983-11-18 1985-06-05 Mannesmann AG, 4000 Düsseldorf Transportvorrichtung fuer randgelochte ein- oder mehrlagige materialbahnen, insbesondere fuer aufzeichnungstraeger in einem drucker
JPS6128531U (ja) * 1984-07-23 1986-02-20 沖電気工業株式会社 プリンタの用紙送り機構
US4807792A (en) * 1985-10-07 1989-02-28 Seikosha Co., Ltd. Pin belt type paper tractor
DE3607080A1 (de) * 1986-03-04 1987-09-10 Mannesmann Ag Vorrichtung fuer den papiertransport in druckern mit balkenfoermigem druckwiderlager, insbesondere in matrixdruckern
US4804124A (en) * 1986-05-15 1989-02-14 Dataproducts Corp. Semi-automatic loading paper feed tractor
FR2601291A1 (fr) * 1986-07-08 1988-01-15 Quin Xavier O Imprimante.
DE3883872T2 (de) * 1987-06-30 1994-02-10 Seiko Epson Corp Papierzuführvorrichtung für Drucker.
JPH0647732Y2 (ja) * 1987-12-15 1994-12-07 シチズン時計株式会社 プリンタの用紙張力調整装置
US4817842A (en) * 1988-01-29 1989-04-04 International Business Machines Corporation Door and spring assembly for a paper feed mechanism
JPH01192655A (ja) * 1988-01-29 1989-08-02 Oki Electric Ind Co Ltd 用紙送り機構
US4989771A (en) * 1988-05-31 1991-02-05 Precision Handling Devices, Inc. Forms feeding apparatus
US4896980A (en) * 1988-08-10 1990-01-30 Royden C. Sanders, Jr. Paper advancing system for high speed printers

Also Published As

Publication number Publication date
US5061096A (en) 1991-10-29
EP0430381A3 (en) 1991-09-25
DE3939507C1 (fr) 1991-02-21

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