WO1996041724A1 - Dispositif d'entrainement pour cartouche de ruban encreur - Google Patents

Dispositif d'entrainement pour cartouche de ruban encreur Download PDF

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Publication number
WO1996041724A1
WO1996041724A1 PCT/DE1996/000820 DE9600820W WO9641724A1 WO 1996041724 A1 WO1996041724 A1 WO 1996041724A1 DE 9600820 W DE9600820 W DE 9600820W WO 9641724 A1 WO9641724 A1 WO 9641724A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
rack
drive device
printer
control disk
Prior art date
Application number
PCT/DE1996/000820
Other languages
German (de)
English (en)
Inventor
Wilfried Dobring
Original Assignee
Siemens Nixdorf Informationssysteme 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 Siemens Nixdorf Informationssysteme Ag filed Critical Siemens Nixdorf Informationssysteme Ag
Priority to DE59601235T priority Critical patent/DE59601235D1/de
Priority to EP96914854A priority patent/EP0830254B1/fr
Publication of WO1996041724A1 publication Critical patent/WO1996041724A1/fr

Links

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
    • B41J33/00—Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
    • B41J33/14—Ribbon-feed devices or mechanisms
    • B41J33/40—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction

Definitions

  • the invention relates to a drive device for an ink ribbon cassette which can be used fixedly in the printer frame of a printer according to the preamble of claim 1.
  • a printer of the type mentioned is known from DE 43 15 510 AI.
  • the printer described therein manages with a single drive motor for all movement sequences: the io motor takes over the advance of the print head along the print line and with the print head drive a control disk is coupled which, depending on its angular position, the advance of a record carrier or also an ab ⁇ cutting device drives.
  • the io motor takes over the advance of the print head along the print line and with the print head drive a control disk is coupled which, depending on its angular position, the advance of a record carrier or also an ab ⁇ cutting device drives.
  • the object of the invention is therefore to provide a drive device for an ink ribbon cassette which is arranged stationary in the printer frame of a printer and which derives its kinetic energy from a control disk, the rotational movement of which is coupled with the movement of a print head.
  • a rack can be easily guided through openings in the printer frame become. In the simplest case, the rack can mesh directly with an external toothing on the control disk.
  • Fig. 1 is a schematic view of a printer
  • FIG. 3 shows an ink ribbon transmission according to a second exemplary embodiment with different rack states of motion
  • FIG. 1 shows a printer 10 which is designed as a structural unit for use in a cash register housing (not shown).
  • Two side walls 12 hold cylindrical guide rails 14 arranged in parallel, between which a pressure head holder 5 is guided.
  • the printhead holder 16 can accommodate a printhead 16 'which, for example, prints color dots line by line using the mosaic printing method.
  • the Printhead holder 16 is moved back and forth on the guide rails 14 by a toothed belt (not shown) driven by a reversible DC motor 28.
  • the toothed belt is firmly connected to the printhead holder 16, so that various printing positions along the guide rails 14 can be controlled with high repeatability by the rotation of the reversible motor.
  • the printer 10 contains a paper supply roll 18 for receipts and a paper supply roll 20 for journal printing.
  • the paper of the paper supply rolls 18, 20 is guided along the guides (not shown) on the print head and can be output via output chutes 22.
  • the movement of the toothed belt is transmitted via a gear transmission to a control disk 24 with a ring gear.
  • This control disc 24 has a switching cam 26 which actuates a line switching device via a ratchet mechanism 30.
  • the printer 10 corresponds to the printer described in DE 43 15 510 AI. Its mode of operation is also explained in more detail there.
  • a crank pin 32 is fastened to the outwardly facing surface of the control disk 24.
  • a connecting rod 34 is rotatably mounted, the other end of which is articulated to a rack 36.
  • the toothed rack 36 is in engagement with an adjacent ribbon drive 40, which is described in more detail below, via a toothing attached to it laterally.
  • the output side of the ribbon transmission 40 is formed by a driver shaft 42, which is formed into a coupling end 44 with a cross-shaped cross-sectional profile. This is designed to be complementary in shape To engage the coupling recess in the transport roller of a ribbon cassette which is known per se and therefore not shown, in a form-fitting manner.
  • the ribbon transmission 40 is described in more detail below with reference to FIG. 2, all of the wheels mentioned below being spur-toothed gears.
  • the rack 36 is engaged with a switching wheel 46 which is rotatably mounted on a shaft 50 at one end of a rocker 48. The other end of the rocker is pivotally attached to the printer frame on a pin 52.
  • Both wheels form a pair of gears which is arranged symmetrically to the pin 52 so that their centers form an isosceles triangle with the pin 52, the triangle of which Base is located approximately midway between the shaft 50 and the pin 52 and parallel to the rack 36.
  • a driving wheel 58 is in engagement with the turning wheel 56, the shaft 42 (FIG. 1) of which, as already described, ends in a cross-shaped coupling end 44.
  • FIG. 3 shows a second exemplary embodiment of an ink ribbon transmission 40 '. This differs from the ribbon transmission 40 (FIG. 2) only in that the coupling end 44 'is formed on the shaft of the drive wheel 54'. As a result, the driving wheel 58 can be omitted.
  • FIG. 4 shows a third embodiment of an ink ribbon transmission 40 ".
  • a control disk 24 which otherwise corresponds to the control disk 24 in FIG. With this one combs on one surface of a square toothed rack 36 ′′ attached to the top, a first toothing 62.
  • an external toothing can also be provided directly on the control disk 24 ", in comparison to this larger one, with which the first toothing 62 of the rack 36" can then be brought into engagement.
  • This is particularly interesting for printers with only a few characters per print line because, owing to the larger number of teeth due to the larger diameter of the control disk 24 ", the toothed rack 36" and thus the ink ribbon are fed more widely.
  • a smaller gear 60 has a smaller number of teeth, so that the rack 36 ′′ experiences less feed. Such a gear is advantageous for printers 10 with larger writing widths.

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)

Abstract

L'invention concerne un dispositif d'entraînement pour une cartouche de ruban encreur insérable de manière fixe dans le châssis d'une imprimante, dans lequel un disque de commande tourne en fonction du sens de déplacement et de la trajectoire de la tête d'impression. Le disque de commande (24) déplace une crémaillère (36) en un mouvement de va-et-vient dans le sens longitudinal. Ladite crémaillère (36) actionne quant à elle le mécanisme d'avancement du ruban encreur de la cartouche par l'intermédiaire d'un mécanisme inverseur.
PCT/DE1996/000820 1995-06-09 1996-05-11 Dispositif d'entrainement pour cartouche de ruban encreur WO1996041724A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59601235T DE59601235D1 (de) 1995-06-09 1996-05-11 Antriebseinrichtung für eine farbbandkassette
EP96914854A EP0830254B1 (fr) 1995-06-09 1996-05-11 Dispositif d'entrainement pour cartouche de ruban encreur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29509485.0 1995-06-09
DE29509485U DE29509485U1 (de) 1995-06-09 1995-06-09 Antriebseinrichtung für eine Farbbandkassette

Publications (1)

Publication Number Publication Date
WO1996041724A1 true WO1996041724A1 (fr) 1996-12-27

Family

ID=8009144

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/000820 WO1996041724A1 (fr) 1995-06-09 1996-05-11 Dispositif d'entrainement pour cartouche de ruban encreur

Country Status (3)

Country Link
EP (1) EP0830254B1 (fr)
DE (2) DE29509485U1 (fr)
WO (1) WO1996041724A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854670A (en) * 1972-09-01 1974-12-17 Honeywell Inf Systems Italia Device for the automatic reversal of the lengthwise motion of the ink-ribbon in typewriters and printers
US4596480A (en) * 1983-10-20 1986-06-24 Ricoh Company, Ltd. Ribbon feed mechanism for printer
JPS61182976A (ja) * 1985-02-08 1986-08-15 Kawaguchiko Seimitsu Kk 往復印字用プリンタにおけるリボン巻取装置
EP0257527A2 (fr) * 1986-08-25 1988-03-02 Hitachi, Ltd. Dispositif d'enregistrement thermique par transfert
DE4315510A1 (de) * 1993-05-10 1994-11-17 Siemens Nixdorf Inf Syst Drucker zum zeilenweisen Bedrucken mindestens eines Druckträgers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915334A1 (de) * 1979-04-14 1980-10-16 Triumph Werke Nuernberg Ag Farbbandtransportvorrichtung fuer schreib- oder druckwerke
DE3546672C2 (de) * 1984-10-31 1992-01-02 Alps Electric Co Ltd Thermodrucker mit einem Verschiebbaren Wagen und mit einer Zahnstange f}r den Farbbandantrieb
US4712115A (en) * 1985-05-10 1987-12-08 Kabushiki Kaisha Toshiba Thermal-transfer printer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854670A (en) * 1972-09-01 1974-12-17 Honeywell Inf Systems Italia Device for the automatic reversal of the lengthwise motion of the ink-ribbon in typewriters and printers
US4596480A (en) * 1983-10-20 1986-06-24 Ricoh Company, Ltd. Ribbon feed mechanism for printer
JPS61182976A (ja) * 1985-02-08 1986-08-15 Kawaguchiko Seimitsu Kk 往復印字用プリンタにおけるリボン巻取装置
EP0257527A2 (fr) * 1986-08-25 1988-03-02 Hitachi, Ltd. Dispositif d'enregistrement thermique par transfert
DE4315510A1 (de) * 1993-05-10 1994-11-17 Siemens Nixdorf Inf Syst Drucker zum zeilenweisen Bedrucken mindestens eines Druckträgers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Bi-Directional Ribbon Drive Mechanism", RESEARCH DISCLOSURE, no. 297, January 1989 (1989-01-01), NEW YORK, NY, US, pages 14, XP000112806 *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 6 (M - 551)<2453> 8 January 1987 (1987-01-08) *

Also Published As

Publication number Publication date
DE29509485U1 (de) 1995-08-24
EP0830254B1 (fr) 1999-01-27
DE59601235D1 (de) 1999-03-11
EP0830254A1 (fr) 1998-03-25

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