EP0184633A2 - Dispositif pour la séparation ou l'alimentation de supports d'informations pour une machine à écrire, en particulier une imprimante à matrice de points - Google Patents

Dispositif pour la séparation ou l'alimentation de supports d'informations pour une machine à écrire, en particulier une imprimante à matrice de points Download PDF

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Publication number
EP0184633A2
EP0184633A2 EP85112992A EP85112992A EP0184633A2 EP 0184633 A2 EP0184633 A2 EP 0184633A2 EP 85112992 A EP85112992 A EP 85112992A EP 85112992 A EP85112992 A EP 85112992A EP 0184633 A2 EP0184633 A2 EP 0184633A2
Authority
EP
European Patent Office
Prior art keywords
separating
rollers
freewheels
typewriter
gear train
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Withdrawn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
EP85112992A
Other languages
German (de)
English (en)
Other versions
EP0184633A3 (fr
Inventor
Gerhard Lohrmann
Kurt Röhrer
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 EP0184633A2 publication Critical patent/EP0184633A2/fr
Publication of EP0184633A3 publication Critical patent/EP0184633A3/fr
Withdrawn legal-status Critical Current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
    • B65H3/00—Separating articles from piles
    • B65H3/44—Simultaneously, alternately, or selectively separating articles from two or more piles
    • 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 separating or feeding recording media for a typewriter, in particular for a matrix printer, from a plurality of storage magazines into the support position on a writing abutment, wherein a storage magazine is assigned at least one rotatably drivable, separately controllable separating roller which is stepped by means of a drive can be actuated and against which the supply stack can be placed and with at least one feed channel upstream of the writing abutment for the respectively separated recording medium.
  • Such a device is used for separating individual sheets of a stack of paper, the single sheet being fed to the writing or printing mechanism.
  • several storage magazines are added to such a typewriter or matrix printer in order to be able to process different paper dimensions.
  • an individual separating roll is assigned to each individual supply magazine, the term "separating roll” being understood to mean either only a single roll located on the axis or a plurality of rolls distributed over the paper width.
  • the switching on of a supply magazine takes place in that the individualizing roller in question is controlled separately, after which the feed (or a short return) is effected by its frictional engagement with the top paper sheet of the relevant stack in the supply magazine.
  • the separating roller then pushes the individual paper sheet into the feed channel.
  • the platen consists of a conventional platen roller, the single sheet can then be guided around the platen and brought into the writing position with the help of a further driven roller or an idling pressure roller.
  • the prior art includes a device for feeding single sheets from a magazine to the platen of a writing office or data processing machine and for storing the single sheets coming from the platen (DE-Ausletschrift 29 05 171). From this it is known to design the drive of the separating devices by means of drive motors which are arranged separately in the cassette receiving units and can be controlled separately. It is also possible to drive the separating device through the feed conveyor track, so that separate drive motors become superfluous. In this known case, the drive movement is removed from the feed conveyor track by a functional wheel or gear wheel of the cassette receiving unit and transmitted to the separating device via a gear. The separation device is controlled separately via clutches engaged in this gear train. The separation rollers can thus be driven by a separate motor or also by the paper drive motor of the printer. However, no other drive options are proposed, so that relatively complex selection and drive designs are available.
  • the invention has for its object to further simplify the selection or control and drive transmission for at least two storage magazines.
  • a stepping motor is provided for at least two separating rollers, that the separating rollers are connected to the stepping motor by means of a single, continuous gear train and that switchable means for reversing the direction of rotation are provided for the separating rollers.
  • a simplifying effect here in particular is that at least two separating rollers are assigned to only one motor. It also has a simplifying effect that only one Gear train is provided between the singling rollers and the single motor.
  • the means which can be switched when the singling rollers are actuated consist of freewheels which are respectively arranged in the singling rollers and are each blocking in opposite directions of rotation. Switching on or off in one of the freewheels therefore gives a choice of one or the other freewheel or one or the other singling role.
  • the freewheels consist of needle freewheels.
  • needle freewheels take up only a small space in the hub of the separating roller or in gears of the separating shaft.
  • Such devices for separating or feeding recording media should be inexpensive, particularly easy and economical to manufacture. It is therefore particularly advantageous that the single gear train is formed from gears. Such gears are advantageously made of plastic for such devices. This also ensures that the method of production is economical.
  • the typewriter 1 matrix printer
  • a printing roller 2a as the abutment 2
  • the drive of which is arranged inside the housing of the typewriter 1 (the matrix printer) and is not shown.
  • the paper guide 3 is formed from a pair of side shells 4a connected to form a frame 4, all of the components described below being arranged between these side shells 4.
  • the frame 4 is supported on the base 6 by means of feet 5.
  • feet 5 instead of the paper 7, it is of course also possible to process another formatted recording medium, as prescribed by the typing process of the typewriter 1.
  • the paper 7 initially placed in the storage magazines 8 and 9 must be separated for the typing process in the typewriter, i.e. be separated before it is transported to the support position 10 through the feed channel 11 on the writing abutment 2. After labeling, the paper 7 is guided onto the tray 12 by means of the pair of rollers 11a.
  • a separating device 13 is assigned to each storage magazine 8 and 9, with the separation device advantageously being assigned to each of the two storage magazines 8 and 9 in certain areas, as will be described below.
  • the stock stack 7a formed from paper formats rests on a form support 14, which is supported by means of an eyelet 15 on a lever 16 and a tension spring 17.
  • the spring 17 pulls the form support 14 against the respective separating roller 18 or 19.
  • the two-fold separating device 13 consequently has a separate separating roller 18 or 19 for each storage magazine 8 or 9. However, both are of only driven by a single stepper motor 20, which by means of the gear train 21 (shown in FIG. 1 by the connection of a line drawing of the axis center points), consisting of the gear wheels 21a, 21b, 21c, 21d, 21e and 21f, drives onto the singling rollers 18 and 19, respectively.
  • the gears 21a to 21f advantageously transmit the movement paths of the stepping motor 20 with high accuracy.
  • the gears need to reverse their direction of rotation in order to fulfill both necessary directions of movement of the paper feed or a short paper feed.
  • These means 22 which reverse the direction of rotation and can be switched when actuated are installed within the gearwheels 21c and 21f and consist of freewheels 22a which are in each case blocking in opposite directions of rotation. Each freewheel therefore transfers thrust to the paper 7 in the respective feed direction.
  • the freewheels 22a are symbolically represented by blackened areas (FIG. 2), the points according to FIG.
  • the mode of operation is as follows: A single sheet of the platen roller 2a is to be fed from the lower supply stack 7a.
  • the stepper motor 20 is switched on and drives the gear train 21.
  • the freewheel 22 for the separating roller 19 engages and drives the separating roller 19.
  • the gears 21d, 21e and 21f are also driven, the freewheel 22 for the separating roller 18 runs idle.
  • the stepper motor 20 is actuated in the opposite direction of rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Handling Of Cut Paper (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
EP85112992A 1984-12-14 1985-10-14 Dispositif pour la séparation ou l'alimentation de supports d'informations pour une machine à écrire, en particulier une imprimante à matrice de points Withdrawn EP0184633A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843445633 DE3445633A1 (de) 1984-12-14 1984-12-14 Vorrichtung zum separieren bzw. zufuehren von aufzeichnungstraegern fuer eine schreibmaschine, insbesondere fuer einen matrixdrucker
DE3445633 1984-12-14

Publications (2)

Publication Number Publication Date
EP0184633A2 true EP0184633A2 (fr) 1986-06-18
EP0184633A3 EP0184633A3 (fr) 1987-12-16

Family

ID=6252777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85112992A Withdrawn EP0184633A3 (fr) 1984-12-14 1985-10-14 Dispositif pour la séparation ou l'alimentation de supports d'informations pour une machine à écrire, en particulier une imprimante à matrice de points

Country Status (3)

Country Link
EP (1) EP0184633A3 (fr)
JP (1) JPS61145048A (fr)
DE (1) DE3445633A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770555A (en) * 1986-04-08 1988-09-13 Societe D'applications Generales D'electricite Et De Mecanique Sagem Printing machine equipped with a device for the selective supply of sheets from two feed trays
DE3707886A1 (de) * 1987-03-12 1988-09-22 Mannesmann Ag Vorrichtung zum zufuehren von einzelblaettern zur schreibwalze einer bueromaschine, insbesondere eines matrixdruckers
WO1992013786A3 (fr) * 1991-01-30 1992-10-01 Compaq Computer Corp Plateau d'alimentation en enveloppes amovible et a deux compartiments, destine a une machine de reproduction d'images telle qu'une imprimante ou une photocopieuse

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7063314B2 (en) 2002-11-18 2006-06-20 Hewlett-Packard Development Company, L.P. Media handling device and methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222557A (en) * 1978-05-16 1980-09-16 Wang Laboratories, Inc. Printer feeding and stacking
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
US4475731A (en) * 1982-12-17 1984-10-09 Centronics Data Computer Corp. Programmable, mechanical system for feeding cut sheet paper to a printer
CA1246107A (fr) * 1983-09-20 1988-12-06 Ludwig J. Kapp Ensemble imprimante et avance-feuilles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770555A (en) * 1986-04-08 1988-09-13 Societe D'applications Generales D'electricite Et De Mecanique Sagem Printing machine equipped with a device for the selective supply of sheets from two feed trays
DE3707886A1 (de) * 1987-03-12 1988-09-22 Mannesmann Ag Vorrichtung zum zufuehren von einzelblaettern zur schreibwalze einer bueromaschine, insbesondere eines matrixdruckers
WO1992013786A3 (fr) * 1991-01-30 1992-10-01 Compaq Computer Corp Plateau d'alimentation en enveloppes amovible et a deux compartiments, destine a une machine de reproduction d'images telle qu'une imprimante ou une photocopieuse

Also Published As

Publication number Publication date
EP0184633A3 (fr) 1987-12-16
DE3445633A1 (de) 1986-06-26
JPS61145048A (ja) 1986-07-02

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