EP0332794B1 - Dispositif pour amener des feuilles de papier individuelles au cylindre de pression d'une machine de bureau, notamment d'une imprimante à matrice - Google Patents

Dispositif pour amener des feuilles de papier individuelles au cylindre de pression d'une machine de bureau, notamment d'une imprimante à matrice Download PDF

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Publication number
EP0332794B1
EP0332794B1 EP88730024A EP88730024A EP0332794B1 EP 0332794 B1 EP0332794 B1 EP 0332794B1 EP 88730024 A EP88730024 A EP 88730024A EP 88730024 A EP88730024 A EP 88730024A EP 0332794 B1 EP0332794 B1 EP 0332794B1
Authority
EP
European Patent Office
Prior art keywords
gear wheel
gear
drive motor
rollers
separating
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
EP88730024A
Other languages
German (de)
English (en)
Other versions
EP0332794A1 (fr
Inventor
Günter Engelhardt
Gerhard Lohrmann
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 AT88730024T priority Critical patent/ATE74827T1/de
Publication of EP0332794A1 publication Critical patent/EP0332794A1/fr
Application granted granted Critical
Publication of EP0332794B1 publication Critical patent/EP0332794B1/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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/103—Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section

Definitions

  • the invention relates to a device for feeding single sheets to the platen of an office machine, in particular a matrix printer, with a plurality of supply shafts, each of which is assigned a separating roller which is rotatably mounted on a fixed axis and is connected to a drive motor via a gear train.
  • a separation device for two opposing supply shafts is also known (UK patent application 2,022,059), in which one only separating roller is arranged between the two storage magazines and can be pivoted into the two separating positions.
  • this system has the disadvantage that the position of the separating roller must be determined precisely after each swiveling operation, because otherwise the contact pressure of the resilient floor on which the stack of sheets rests changes, and thus the separating force.
  • the invention has for its object to provide a safe working shaft selection, which can also be used for larger shaft distances and for larger storage shafts.
  • the drive motor can be driven counterclockwise or clockwise that the drive motor pinion is in engagement with a first gearwheel which carries an eccentrically mounted cam which engages in a rocker arm and in that around a horizontal axis mounted rocker arm is rotatably mounted at least a second gear which is pivotable depending on the direction of rotation of the drive motor in engagement with the respective gear of one of the separating rollers.
  • the respective direction of rotation controls a rocker arm by meshing teeth.
  • the cam arranged on the first gear wheel is mounted between the legs of a spring wire clip.
  • a third gear is rotatably mounted on the rocker arm, which engages with the second gear and also meshes via a gear train with a gear which is arranged on the axis of the pressure roller and that the rocker arm about the horizontal Axis of the third gear is pivotally mounted.
  • a further drive branch is achieved in that a fourth gearwheel is connected to the gear train connecting the third gearwheel with the printing roller in the area of the input edge of a storage compartment for printed single sheets, on the axis of which transport rollers are arranged.
  • the transport of a finished printed single sheet can be additionally supported by assigning a pair of guide rollers at the exit to the printing roller, the guide gap of which, with the transport rollers of the storage compartment, runs approximately on a tangent to the transport rollers.
  • a separation from the other assemblies of a writing office machine is achieved in that at least the storage shafts, the storage compartment, the separating rollers with gearwheels, the drive motor, the rocker arm with gearwheels and the gear train as well as the transport rollers are combined on a frame that can be attached to the pressure roller axis and that the frame can be locked on the printer chassis.
  • the exemplary embodiment shows a matrix printer 1 which has both a tractor 2 for endless webs and a device 3 for feeding single sheets to the printing roller 4 with two supply shafts 5 and 6.
  • the supply shaft 5 is assigned its own separating roller (pair of rollers) 7 and the supply shaft 6 is also assigned its own separating roller 8 (pair of rollers).
  • This first gear 11 carries an eccentrically arranged cam 12 at the position shown, in which a rocker arm 13 is in its neutral (vertical) position .
  • the rocker arm 13 is pivotally mounted about a horizontal axis 14, wherein the horizontal axis 14 can initially be arranged higher than shown.
  • the cam 12 fastened on the first gearwheel 11 is guided between the legs 18a and 18b of a spring wire clasp 18.
  • the second gear wheel 15 is also held with its rotary bearing 19 between these legs 18a and 18b.
  • the spring wire clasp 18 is against changes in position secured by a bracket 20.
  • the spring wire clip 18 is also fixed in its longitudinal direction by lugs 21 and by a shaft pin 22.
  • a third gear 23 can also be rotatably mounted on the horizontal axis 14, which is in constant engagement with the second gear 15.
  • a gear train 24 consisting of intermeshing gears 25, 26, 27, 28, 29, 30, 31 is connected to the third gear 23, the last gear 31 engaging in a gear 32 which is arranged on the axis 33 of the printing roller 4 is.
  • the pivot axis of the rocker arm 13 coincides with the horizontal axis 14 of the third gear 23.
  • a fourth gear 37 is rotatably mounted in the area of the input edge 34, which serves for the transport of (printed) individual sheets 5a or 6a in the storage compartment 36.
  • Transport rollers 35 are arranged on the axis 35a of the fourth gearwheel 37, which cooperate with the respective individual sheet 5a or 6a in a frictionally locking manner.
  • the individual sheets 5a and 6a reach the area of influence of the transport rollers 35, in that the pressure roller 4 is followed by a pair of guide rollers 38 at the outlet 4a, which forms a tangent 40 with its guide gap 39 with the transport rollers 35 of the storage compartment 36.
  • a frame 41 is suspended on the matrix printer 1 on the printing roller axis 33 and locked to the printer chassis 1a by releasable locking means 42.
  • the frame 4 carries the storage compartment 36, the separating rollers 7 and 8 with the toothed wheels 16 and 17, the drive motor 9, the rocker arm 13 with the toothed wheels 11, 15 and 23, the gear train 24 and the transport rollers 37 .
  • Fig. 2 it is shown that the "right-hand drive” of the drive motor 9 Switch rocker 13 is pivoted via the drive motor pinion 10 and the first gear 11 by the cam 12 such that the second gear 15 engages in the gear 17 of the separating roller 8 and thus individual sheets 6a are withdrawn from the supply shaft 6.

Claims (6)

1. Dispositif pour amener des feuilles de papier individuelles (5a,6a) au cylindre d'impression (4) d'une machine de bureau, en particulier une imprimante à matrice, comportant plusieurs magasins de réserve (5,6), auxquels, à chaque fois, est associé un rouleau de séparation (7,8) monté rotatif sur un axe fixe, qui est raccordé à un moteur d'entraînement par l'intermédiaire d'un train d'engrenages (24), caractérisé en ce qu'un moteur d'entraînement séparé (9) peut être commandé en rotation à gauche ou à droite, en ce qu'un pignon (10) du moteur d'entraînement est en engagement avec une première roue dentée (11), qui porte un ergot ou came (12) monté excentriquement, qui s'engage dans une coulisse de commande (13), et en ce qu'au moins une deuxième roue dentée (15) est montée rotative sur la coulisse (13) montée autour d'un axe horizontal (14), deuxième roue dentée qui, selon le sens de rotation du moteur d'entraînement (9), peut pivoter en prise avec la roue dentée respective (16,17) d'un des rouleaux de séparation (7,8).
2. Dispositif selon la revendication 1, caractérisé en ce que l'ergot (12) agencé sur la première roue dentée (11) est monté entre les branches (18a,18b) d'une boucle de fil à ressort (18).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que, sur la coulisse de commande (13), est montée rotative une troisième roue dentée (23) qui est en engagement avec la deuxième roue dentée (15) et, par ailleurs, engrène, par l'intermédiaire d'un train d'engrenage (24), avec une roue dentée (32) qui est agencée sur l'axe (33) du cylindre d'impression (4), et en ce que la coulisse de commande (13) est montée pivotante autour de l'axe horizontal (14) de la troisième roue dentée (23).
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que, au train d'engrenages (24) reliant, par une technique d'entraînement, la troisième roue dentée (23) au cylindre d'impression (4), est raccordée une quatrième roue dentée (37) dans la zone du bord d'entrée (34) d'une case de réception (36) pour des feuilles individuelles imprimées (5a,6a), sur l'axe (35a) de laquelle sont agencés des rouleaux de transport (35).
5. Dispositif selon les revendications 1 à 4, caractérisé en ce que, à la sortie (4a) du cylindre d'impression (4), est associée une paire de rouleaux de guidage (38), dont la fente de guidage (39) s'étend, avec les rouleaux de transport (35) de la case de réception (36), à peu près sur une tangente (40) aux rouleaux de transport (35).
6. Dispositif selon les revendications 1 à 5, caractérisé en ce qu'au moins les magasins de réserve (5,6), la case de réception (36), les rouleaux de séparation (7,8) avec les roues dentées (16,17), le moteur d'entraînement (9), la coulisse de commande (13) avec les roues dentées (11,15,23), et le train d'engrenages (24) ainsi que les rouleaux de transport (35), sont réunis sur un châssis (41) pouvant être suspendu sur l'axe (4b) du cylindre d'impression, et en ce que le châssis (41) peut être verrouillé au châssis (1a) de l'imprimante.
EP88730024A 1987-03-12 1988-02-04 Dispositif pour amener des feuilles de papier individuelles au cylindre de pression d'une machine de bureau, notamment d'une imprimante à matrice Expired - Lifetime EP0332794B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88730024T ATE74827T1 (de) 1987-03-12 1988-02-04 Vorrichtung zum zufuehren von einzelblaettern zur schreibwalze einer bueromaschine, insbesondere eines matrixdruckers.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873707886 DE3707886A1 (de) 1987-03-12 1987-03-12 Vorrichtung zum zufuehren von einzelblaettern zur schreibwalze einer bueromaschine, insbesondere eines matrixdruckers
DE3707886 1987-03-12

Publications (2)

Publication Number Publication Date
EP0332794A1 EP0332794A1 (fr) 1989-09-20
EP0332794B1 true EP0332794B1 (fr) 1992-04-15

Family

ID=6322815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730024A Expired - Lifetime EP0332794B1 (fr) 1987-03-12 1988-02-04 Dispositif pour amener des feuilles de papier individuelles au cylindre de pression d'une machine de bureau, notamment d'une imprimante à matrice

Country Status (5)

Country Link
US (1) US5080515A (fr)
EP (1) EP0332794B1 (fr)
JP (1) JPS63242666A (fr)
AT (1) ATE74827T1 (fr)
DE (2) DE3707886A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02175532A (ja) * 1988-12-23 1990-07-06 Shinko Seisakusho Co Ltd 電子写真式プリンタの用紙送り装置
DE3916982A1 (de) * 1989-05-24 1990-02-08 Siemens Ag Steuerbare kupplung zur mechanischen antriebsentkopplung von motorisch parallel angetriebenen wellen
DE3934936A1 (de) * 1989-10-17 1991-04-25 Mannesmann Ag Vorrichtung fuer den papiereinzug eines druckers, insbesondere eines matrix-druckers
DE3943136A1 (de) * 1989-12-28 1991-07-04 Helmut Steinhilber Vorrichtung zur automatischen zufuhr von einzelblaettern und dergleichen zu einer bueromaschine
DE4039389A1 (de) * 1990-12-10 1992-06-11 Siemens Ag Druckeinrichtung fuer einzelblatt- und abtastfaehige elemente aufweisendes endlospapier
JPH06179273A (ja) * 1992-10-12 1994-06-28 Brother Ind Ltd 印字装置
US5727890A (en) * 1993-10-29 1998-03-17 Hewlett-Packard Company Multiple-function printer with common mounting chassis feeder/output path mechanisms
US6000870A (en) * 1996-10-14 1999-12-14 Brother Kogyo Kabushiki Kaisha Printing device having dual sheet feed trays
US6325559B1 (en) * 2000-06-02 2001-12-04 Hewlett-Packard Company Single transmission state media handling for ejecting, picking and loading
US7451975B2 (en) * 2004-03-18 2008-11-18 Lexmark International, Inc. Input tray and drive mechanism using a single motor for an image forming device
ATE491580T1 (de) 2005-08-31 2011-01-15 Brother Ind Ltd Drucker mit blätterzuführeinrichtung
JP4277902B2 (ja) * 2006-12-27 2009-06-10 ブラザー工業株式会社 シート搬送装置及び画像記録装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816442C2 (de) * 1978-04-15 1981-12-17 Helmut 7210 Rottweil Steinhilber Vorrichtung zum Zuführen von Einzelblättern von einem in einem Magazin gespeicherten Papierstapel zur Schreibwalze einer Büromaschine
DE2856950C2 (de) * 1978-04-15 1982-08-26 Helmut 7210 Rottweil Steinhilber Vorrichtung zum Zuführen von Papierblättern für eine schreibende Büromaschine
US4222557A (en) * 1978-05-16 1980-09-16 Wang Laboratories, Inc. Printer feeding and stacking
JPS55123833A (en) * 1979-03-16 1980-09-24 Nec Corp Blank-form feeding apparatus
JPS58212537A (ja) * 1982-05-31 1983-12-10 Toshiba Corp 用紙搬送装置
DE3234562A1 (de) * 1982-09-17 1984-05-10 Siemens AG, 1000 Berlin und 8000 München Anordnung zum wahlweisen entnehmen von einzelnen papierblaettern aus zwei kassetten
JPS59177236A (ja) * 1983-03-26 1984-10-06 Canon Inc 給紙装置
JPS61136842A (ja) * 1984-12-05 1986-06-24 Sharp Corp 原稿自動送り装置
DE3445633A1 (de) * 1984-12-14 1986-06-26 Mannesmann AG, 4000 Düsseldorf Vorrichtung zum separieren bzw. zufuehren von aufzeichnungstraegern fuer eine schreibmaschine, insbesondere fuer einen matrixdrucker
JPH07106801B2 (ja) * 1985-07-31 1995-11-15 セイコーエプソン株式会社 給紙装置
FR2596703B1 (fr) * 1986-04-08 1988-07-08 Sagem Machine imprimante equipee d'un dispositif d'alimentation selective en feuilles d'impression reparties dans deux bacs chargeurs
US4729680A (en) * 1986-06-09 1988-03-08 Xerox Corporation Selector latch for a sheet feeder

Also Published As

Publication number Publication date
ATE74827T1 (de) 1992-05-15
US5080515A (en) 1992-01-14
DE3707886C2 (fr) 1990-05-10
EP0332794A1 (fr) 1989-09-20
DE3870217D1 (de) 1992-05-21
DE3707886A1 (de) 1988-09-22
JPS63242666A (ja) 1988-10-07

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