EP0280643A2 - Dispositif de transport du papier dans une machine de bureau, en particulier une imprimante matricielle - Google Patents

Dispositif de transport du papier dans une machine de bureau, en particulier une imprimante matricielle Download PDF

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Publication number
EP0280643A2
EP0280643A2 EP88730030A EP88730030A EP0280643A2 EP 0280643 A2 EP0280643 A2 EP 0280643A2 EP 88730030 A EP88730030 A EP 88730030A EP 88730030 A EP88730030 A EP 88730030A EP 0280643 A2 EP0280643 A2 EP 0280643A2
Authority
EP
European Patent Office
Prior art keywords
pair
tractor
tractors
paper
guide
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.)
Granted
Application number
EP88730030A
Other languages
German (de)
English (en)
Other versions
EP0280643B1 (fr
EP0280643A3 (en
Inventor
Gerd Nolte
Erich Steppe
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
Priority to AT88730030T priority Critical patent/ATE71026T1/de
Publication of EP0280643A2 publication Critical patent/EP0280643A2/fr
Publication of EP0280643A3 publication Critical patent/EP0280643A3/de
Application granted granted Critical
Publication of EP0280643B1 publication Critical patent/EP0280643B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41J11/48—Apparatus for condensed record, tally strip, or like work using two or more papers, or sets of papers, e.g. devices for switching over from handling of copy material in sheet form to handling of copy material in continuous form and vice versa or point-of-sale printers comprising means for printing on continuous copy material, e.g. journal for tills, and on single sheets, e.g. cheques or receipts
    • 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

Definitions

  • the invention relates to a device for paper transport in an office machine, in particular in a matrix printer, with a pressure abutment mounted in side plates for single sheets or endless webs that can be transported by means of a friction drive, and with tractors provided in pairs for pulling or pushing operation for edge-punched endless webs.
  • Such paper transport devices are essentially required for two generally different types of paper: on the one hand, single sheets or endless webs are transported without perforations, and on the other hand tractors are used which, as the name suggests, work in train operation and are designed as attachments. Depending on whether you are working with single sheets (non-perforated endless webs) or with edge perforated endless webs, a special device is accordingly required which transports the paper.
  • the invention is therefore based on the object of providing a paper transport device for single sheets, unperforated paper webs, paper webs with perforations at the edges, which can be brought into any desired printing position by a changeover process.
  • the stated object is achieved in the paper transport device described in the introduction in that the pair of tractors can be driven by means of a tractor gearwheel that is non-rotatable on the tractor shaft, which can be placed in and apart from a non-positive connection to the paper drive motor and in that the pair of tractors by means of a lever mechanism, based on the paper guide level is each pivotable in an approximately tangential direction to the circumference top or to the circumference bottom of the pressure abutment.
  • a paper transport device initially enables the tractors provided to be pulled or pushed.
  • overrun operation can advantageously be set by pivoting the pair of tractors to the underside of the pressure abutment and pulling operation by pivoting the pair of tractors to the top of the pressure abutment, the corresponding drive connection being advantageously created at the same time.
  • the pair of tractors can also be uncoupled from a drive by swiveling them.
  • the lever mechanism consists of a two-armed hand lever pivotally mounted on the side plate, on the second lever arm a link lever with a link guide for a link block is provided, the link block being fixedly arranged in the side plate and on the link lever there is a curve of the tractor pair.
  • the pivotable pair of tractors has an intermediate gear which engages in it.
  • the intermediate gearwheel is advantageously used to reverse the direction of rotation of the paper drive when changing over from push to pull operation.
  • tractor gear and the associated intermediate gear are rotatably mounted in a side wall having the cam guide. This measure serves to minimize the effort in order to achieve the pivotability of the tractor pairs.
  • the curve guide for the tractor pair consists of a curve plate forming the side wall. While the side wall already receives the rotary bearings for the tractor gear and the idler gear, the cam guide is now also placed on this side wall at the same time, in that it is designed as a cam plate. This cam plate is used to control the swiveling movement of the tractor pairs.
  • link guide in the link lever consists of an approximately angular recess.
  • the movements of the tractors can advantageously be controlled here via the shape of this recess.
  • the matrix printer according to FIG. 1 has two side boards 1 and 2.
  • the side boards 1 and 2 are connected to each other by slide guide axes 3 and 4.
  • the print head carriage 6 carrying the matrix print head 5 is moved back and forth by a special slide drive.
  • a print abutment 7 is also attached, on which a record carrier 8, consisting of a single sheet 9, an endless web 10 (with or without edge perforation) or an edge-perforated endless web 11, rests for printing.
  • the print head carriage 6 can be adjusted to the correct distance from an ink ribbon and the recording medium 8 by means of a print head distance adjustment 12.
  • a tractor assembly 13 Arranged behind the pressure abutment 7 is a tractor assembly 13 which has two tractors 14a and 14b and a paper support 15.
  • the device 16 for the paper transport is located in the right rear area of the matrix printer.
  • the tractors 14a and 14b are laterally adjustable on a tractor shaft 17 and on a D-axis 18 and can be locked by means of eccentric levers 19.
  • Each of the tractors 14a, 14b has a tractor flap 20, under which the perforated endless web 11 is guided.
  • a first functional position is shown in FIG. 2.
  • a rotatable tractor gear 21 is assigned to the tractor pair 14a, 14b on the tractor shaft 17.
  • the direction of rotation of the pinion 23 is selected such that the tractor shaft 17 is driven in the thrust direction 24.
  • the pair of tractors 14a, 14b thus works in overrun mode.
  • the position of the individual components is determined as follows: On a second D-axis 25, which is rotatably mounted in the side plate 2, there is a two-armed hand lever 26, on the one lever arm 26a of which a link lever 27 is articulated.
  • the link lever 27 is equipped with a link guide 28 for a link block 29, the link block 29 being rigidly fastened in the side plate 2.
  • a curve guide 30 for the pair of tractors 14a, 14b bears against a straight and flat, cutting-like edge 27a of the link lever 27.
  • the hand lever 26, the lever arm 26a of the link lever 27, the edge 27a and the curve guide 30 form a lever mechanism 31.
  • the paper guide plane 32 runs approximately in a tangential direction 33 to the circumferential underside 34 of the pressure abutment 7 designed as a pressure roller 7a.
  • the pair of tractors 14a, 14b therefore pushes the perforated endless web 11 approximately tangentially on the circumferential underside 34 through a guide channel 35 and, if necessary, further pressure rollers (not shown) tangentially past the circumferential upper side 36 out of the matrix printer.
  • the first functional position thus connects the overrun operation with an edge-perforated endless web 11.
  • the hand lever 26 In a second functional position (FIG. 3), the hand lever 26 is in a position pivoted to the left from the vertical position, so that the lever arm 26a lifts the link lever 27 somewhat under the guide block 29 in the link guide 28.
  • the height production is determined by the link guide 28. This increase in production disengages the tractor gear 21 from the pinion 23, so that the tractor shaft 17 is no longer driven. Nevertheless, the perforated endless web 11 can be kept in readiness and can be brought into printing position after the single sheet 9 or an endless web 10 has been extended (with or without edge perforation).
  • the pivotable pair of tractors 14a, 14b has, in addition to the tractor gearwheel 21, an intermediate gearwheel 37 which engages in it and which is rotatably mounted in a side wall 38 having the curve guide 30.
  • the side wall 38 is designed as a curved plate 39, i.e. it also carries the curve guide 30 on the outer circumference.
  • the hand lever 26 is now pivoted to the right out of the vertical position.
  • the link guide 28 in the link lever 27 also consists of an approximately angular recess 40.
  • the link block 29 gets into the other branch 29a of the link guide 28, whereby the lever arm 26a sets the link lever 27 very high, so that the edge 27a strongly raises the curve guide 30 of the tractor pair 14a, 14b.
  • the intermediate gear 37 comes into engagement with the pinion 23, drives the intermediate gear 37 and the tractor gear 21 and thus rotates the tractor shaft 17.

Landscapes

  • Handling Of Sheets (AREA)
  • Advancing Webs (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Handling Of Cut Paper (AREA)
EP88730030A 1987-02-24 1988-02-08 Dispositif de transport du papier dans une machine de bureau, en particulier une imprimante matricielle Expired - Lifetime EP0280643B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88730030T ATE71026T1 (de) 1987-02-24 1988-02-08 Vorrichtung fuer den papiertransport in einer bueromaschine, insbesondere in einem matrixdrucker.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3705856 1987-02-24
DE19873705856 DE3705856A1 (de) 1987-02-24 1987-02-24 Vorrichtung fuer den papiertransport in einer bueromaschine, insbesondere in einem matrixdrucker

Publications (3)

Publication Number Publication Date
EP0280643A2 true EP0280643A2 (fr) 1988-08-31
EP0280643A3 EP0280643A3 (en) 1989-04-26
EP0280643B1 EP0280643B1 (fr) 1992-01-02

Family

ID=6321635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730030A Expired - Lifetime EP0280643B1 (fr) 1987-02-24 1988-02-08 Dispositif de transport du papier dans une machine de bureau, en particulier une imprimante matricielle

Country Status (5)

Country Link
US (1) US4896979A (fr)
EP (1) EP0280643B1 (fr)
JP (1) JPS63252769A (fr)
AT (1) ATE71026T1 (fr)
DE (2) DE3705856A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0385550A2 (fr) * 1989-03-02 1990-09-05 Philips Patentverwaltung GmbH Système d'avance d'une imprimante
EP0450740A1 (fr) * 1990-04-06 1991-10-09 MANNESMANN Aktiengesellschaft Méthode et dispositif pour positionner le commencement d'une voie continue dans le dispositif pousseur d'une imprimante

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037222A (en) * 1989-08-29 1991-08-06 Genicom Corporation Printer and cartridge assembly therefor
JP2751621B2 (ja) * 1990-10-31 1998-05-18 ブラザー工業株式会社 プリンタ
JP3028107B2 (ja) * 1991-04-11 2000-04-04 ブラザー工業株式会社 プリンタの連帳単票切換え装置
US5217312A (en) * 1992-05-19 1993-06-08 Lexmark International, Inc. Single lever push/pull/park selector for printer forms tractor
US5594569A (en) * 1993-07-22 1997-01-14 Semiconductor Energy Laboratory Co., Ltd. Liquid-crystal electro-optical apparatus and method of manufacturing the same
US7066670B2 (en) * 2004-02-10 2006-06-27 Tallygenicom Lp Printing method and apparatus
US8674941B2 (en) * 2008-12-16 2014-03-18 Dell Products, Lp Systems and methods for implementing haptics for pressure sensitive keyboards

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571103A (en) * 1983-10-17 1986-02-18 Nec Corporation Printer
US4572418A (en) * 1983-06-17 1986-02-25 Brother Kogyo Kabushiki Kaisha Print paper feeding apparatus
EP0191984A1 (fr) * 1984-12-14 1986-08-27 Tokyo Electric Co., Ltd. Dispositif d'entraînement du papier dans une imprimante

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2140028A (en) * 1936-05-22 1938-12-13 Ellsworth J Nichols Multiple form aligning device
DE3046592A1 (de) * 1980-12-11 1982-07-22 Philips Patentverwaltung Gmbh, 2000 Hamburg "transporteinrichtung zum zufuehren und abfuehren eines endlosformulares zur schreibwalze"
JPS57205182A (en) * 1981-06-12 1982-12-16 Brother Ind Ltd Sheet feeding device for printer
DE3239256A1 (de) * 1982-10-23 1984-04-26 Signode Corp., Glenview, Ill. Heftgeraet
JPS60161175A (ja) * 1984-01-31 1985-08-22 Tokyo Electric Co Ltd 印字機の紙送り装置
JPS60190371A (ja) * 1984-03-12 1985-09-27 Tokyo Electric Co Ltd 印字機のペ−パ−送り装置
GB2162795B (en) * 1984-07-06 1988-11-02 Centronics Data Computer Printer paper handling system
JPH0630913B2 (ja) * 1984-10-02 1994-04-27 沖電気工業株式会社 プリンタの紙送り装置
US4662767A (en) * 1985-08-12 1987-05-05 Xerox Corporation Anti-backlash tractor assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572418A (en) * 1983-06-17 1986-02-25 Brother Kogyo Kabushiki Kaisha Print paper feeding apparatus
US4571103A (en) * 1983-10-17 1986-02-18 Nec Corporation Printer
EP0191984A1 (fr) * 1984-12-14 1986-08-27 Tokyo Electric Co., Ltd. Dispositif d'entraînement du papier dans une imprimante

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0385550A2 (fr) * 1989-03-02 1990-09-05 Philips Patentverwaltung GmbH Système d'avance d'une imprimante
EP0385550A3 (fr) * 1989-03-02 1991-01-02 Philips Patentverwaltung GmbH Système d'avance d'une imprimante
EP0450740A1 (fr) * 1990-04-06 1991-10-09 MANNESMANN Aktiengesellschaft Méthode et dispositif pour positionner le commencement d'une voie continue dans le dispositif pousseur d'une imprimante

Also Published As

Publication number Publication date
EP0280643B1 (fr) 1992-01-02
US4896979A (en) 1990-01-30
DE3705856A1 (de) 1988-09-01
JPS63252769A (ja) 1988-10-19
DE3867254D1 (de) 1992-02-13
EP0280643A3 (en) 1989-04-26
ATE71026T1 (de) 1992-01-15
DE3705856C2 (fr) 1989-07-13

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