EP0236774B1 - Einrichtung für den Antrieb eines Druckkopfschlittens für einen Drucker, insbesondere für einen Matrixdrucker - Google Patents

Einrichtung für den Antrieb eines Druckkopfschlittens für einen Drucker, insbesondere für einen Matrixdrucker Download PDF

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Publication number
EP0236774B1
EP0236774B1 EP87101986A EP87101986A EP0236774B1 EP 0236774 B1 EP0236774 B1 EP 0236774B1 EP 87101986 A EP87101986 A EP 87101986A EP 87101986 A EP87101986 A EP 87101986A EP 0236774 B1 EP0236774 B1 EP 0236774B1
Authority
EP
European Patent Office
Prior art keywords
printer frame
printer
pulley
cable
print head
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
EP87101986A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0236774A3 (en
EP0236774A2 (de
Inventor
Günter Dipl.-Ing. Gomoll (FH)
Wolfgang Dipl.-Ing. Hauslaib (Fh)
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 AT87101986T priority Critical patent/ATE71881T1/de
Publication of EP0236774A2 publication Critical patent/EP0236774A2/de
Publication of EP0236774A3 publication Critical patent/EP0236774A3/de
Application granted granted Critical
Publication of EP0236774B1 publication Critical patent/EP0236774B1/de
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
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
    • B41J19/20—Positive-feed character-spacing mechanisms

Definitions

  • the invention relates to a device for driving a print head carriage for a printer, in particular for a matrix printer, with a drive motor and a rope pulley arranged rotatably on a fixedly mounted axis for a traction rope, which is fastened at one end to the print head carriage, in several turns the pulley is guided and is guided on the opposite side of the printer frame via a deflecting roller and is attached at the other end to the printhead carriage, the deflecting roller being rotatably mounted in a roller lever (18) separate from the printer frame, the roller lever being articulated with one arm is supported on the printer frame and with the other arm by means of a compression spring on the printer frame in such a way that the compression spring is held on the one hand on the printer frame and on the other hand by means of an adjusting screw penetrating the printer frame and the compression spring.
  • Such drives are controlled by a so-called cycle station, i.e. one uses a path-dependent control via a slotted disc and a light beam system that generates square-wave signals via light-dark zones, which determine the position of the print head carriage and thus the print head in front of the platen.
  • DC motors or stepper motors are suitable as drive motors.
  • the invention is therefore based on the object of a device to create the genus referred to at the beginning, in which an automatic re-tensioning of the traction cable is possible, but in which, however, a different tensioning of the traction cable is also possible for different masses of the printheads.
  • the object is achieved according to the invention in that the pulley located on the side of the drive motor, together with a toothed belt pulley, is arranged directly next to one another on an axle mounted on a bearing bracket, the bearing bracket is fastened to the printer frame and that the roller lever is attached to one arm by means of a pronounced projection engages in an opening on the printer frame.
  • the tension force once set in the pull rope is maintained by the compression spring.
  • the sensitivity to vibration is also reduced by the fact that the drive motor, the toothed belt pulleys and the rope pulley form a structural unit combined on the bearing bracket.
  • a matrix printer is assumed as an exemplary embodiment.
  • the device for driving a print head carriage (1) which carries any print head (2), provides a drive motor (3), which usually consists of an electric DC motor or a stepper motor.
  • the printhead (2) is easily replaceable, so that different printheads, ie printheads of different weights and designs, appear on the printhead carriage (1).
  • An axis (6) is non-rotatably mounted on a bearing bracket (5) attached to the printer frame (4), the central longitudinal axis (6a) of which runs perpendicular to the directions of movement (7) of the print head carriage (1).
  • the axis (6) carries a cable pulley (8) rotatably mounted on it for a traction cable (9), which is attached at one end (10) to the print head carriage (1).
  • the pull rope (9) is also with several turns (11) over the cable pulley (8) and continues over a deflection roller (12) on the opposite side of the cable pulley (8) of the printer frame (4) with its other end (13) to the print head carriage (1).
  • a back and forth movement of the drive motor (3) pulls the print head carriage (1) with the print head (2) back and forth in front of a pressure abutment (not shown).
  • the print head carriage (1) slides in a first guide axis (14) and in a second parallel guide axis (15).
  • the parallel guide axes (14 and 15) are mounted in corresponding sliding bushes (16 and 17).
  • the tensile force in the pull rope (9) is adjusted by a special device for the deflection roller (12).
  • the deflection roller (12) is rotatably mounted in a separate roller lever (18), which is articulated on one arm (19) on the printer frame (4) and on the other arm (20) by means of a compression spring (21).
  • the arm (19) of the roller lever (18) forms a projection (22) which engages in an opening (23) on the printer frame (4).
  • the compression spring (21) rests on the printer frame (4) at one end and is held at its other end by an adjusting screw (24). This adjusting screw (24) is passed through the printer frame (4) and fixed in the arm (20).
  • a mother (25) is used for this.
  • the compression spring (21) is advantageously enclosed by a housing (26).
  • the adjusting screw (24) can therefore be adjusted to shorten or lengthen the path of the compression spring (21).
  • the cable pulley (8) is arranged together with a toothed belt pulley (27) on the axis (6) on the bearing bracket (5) directly adjacent to one another.
  • the shaft (28) of the drive motor (3) carries such a toothed belt pulley (29) which is connected to the toothed belt pulley (27) by means of a toothed belt (30) is.
  • the drive motor (3), the toothed belt pulleys (27 and 29) and the cable pulley (8) form a structural unit combined on the bearing bracket (5).

Landscapes

  • Character Spaces And Line Spaces In Printers (AREA)
  • Common Mechanisms (AREA)
EP87101986A 1986-03-11 1987-02-12 Einrichtung für den Antrieb eines Druckkopfschlittens für einen Drucker, insbesondere für einen Matrixdrucker Expired - Lifetime EP0236774B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87101986T ATE71881T1 (de) 1986-03-11 1987-02-12 Einrichtung fuer den antrieb eines druckkopfschlittens fuer einen drucker, insbesondere fuer einen matrixdrucker.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863608000 DE3608000A1 (de) 1986-03-11 1986-03-11 Einrichtung fuer den antrieb eines druckkopfschlittens fuer einen drucker, insbesondere fuer einen matrixdrucker
DE3608000 1986-03-11

Publications (3)

Publication Number Publication Date
EP0236774A2 EP0236774A2 (de) 1987-09-16
EP0236774A3 EP0236774A3 (en) 1989-10-04
EP0236774B1 true EP0236774B1 (de) 1992-01-22

Family

ID=6296024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101986A Expired - Lifetime EP0236774B1 (de) 1986-03-11 1987-02-12 Einrichtung für den Antrieb eines Druckkopfschlittens für einen Drucker, insbesondere für einen Matrixdrucker

Country Status (5)

Country Link
US (1) US5098209A (enrdf_load_stackoverflow)
EP (1) EP0236774B1 (enrdf_load_stackoverflow)
JP (1) JPS62221570A (enrdf_load_stackoverflow)
AT (1) ATE71881T1 (enrdf_load_stackoverflow)
DE (2) DE3608000A1 (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739272A1 (de) * 1987-11-20 1989-06-01 Standard Elektrik Lorenz Ag Transporteinrichtung fuer ein laengs einer geraden strecke gefuehrtes teil
JP2919650B2 (ja) * 1991-06-28 1999-07-12 キヤノン株式会社 キャリッジ移動装置及びシリアル記録装置
US5640074A (en) * 1992-06-19 1997-06-17 Agfa Division, Bayer Corporation Vibration dampening method and apparatus for band driven precision motion systems
US5465107A (en) * 1993-09-17 1995-11-07 Lexmark International, Inc. Printhead drive system for serial printer
DE19535326A1 (de) * 1995-09-22 1997-03-27 Siemens Nixdorf Inf Syst Selbsttätige Längenausgleichsvorrichtung für Zahnriemen
US5964542A (en) * 1998-06-03 1999-10-12 Hewlett-Packard Company Carriage system with variable belt tension
US6257781B1 (en) * 1999-09-24 2001-07-10 International Business Machines Corporation Apparatus for tensioning a drive belt and for absorbing end-of-travel shock
US6485207B1 (en) 2001-03-07 2002-11-26 Eugene David Allen Printer assembly providing tension for idler pulley
US6896430B2 (en) * 2002-10-23 2005-05-24 Hewlett-Packard Development Company, L.P. Compliant belt attach
CN103753970B (zh) * 2014-01-27 2016-09-14 江苏永鼎股份有限公司 一种多功能稳线架
CN216182817U (zh) * 2021-11-10 2022-04-05 深圳拓竹科技有限公司 用于3d打印机的同步带张紧装置及3d打印机

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861657A (en) * 1973-04-05 1975-01-21 Royal W Sims Chain tensioning device
DE2358682A1 (de) * 1973-11-24 1975-05-28 Philips Patentverwaltung Antriebsvorrichtung zur fortschaltung des sich bewegenden teiles einer druckvorrichtung
US3973662A (en) * 1974-11-29 1976-08-10 Extel Corporation Acceleration control system for high speed printer
JPS5769082A (en) * 1980-10-20 1982-04-27 Ricoh Co Ltd Tension mechanism for space wire and the like
JPS5829690A (ja) * 1981-08-17 1983-02-21 Ricoh Co Ltd プリンタのモ−タ取付構造
US4395151A (en) * 1981-11-02 1983-07-26 Zenith Radio Corporation Print head drive belt tensioning means and method for line printer
IT1145638B (it) * 1981-12-30 1986-11-05 Olivetti & Co Spa Dispositivo di posizionamento per un organo di selezione di macchine stampanti
DE3210758C1 (de) * 1982-03-24 1983-07-28 Triumph-Adler Aktiengesellschaft für Büro- und Informationstechnik, 8500 Nürnberg Vorrichtung zum Lagern der Umlenkrollen und zum Spannen eines Zugmitteltriebes
DE3319671C2 (de) * 1983-05-31 1987-01-22 Olympia AG, 2940 Wilhelmshaven Spannvorrichtung für ein seilförmiges Übertragungsglied einer Antriebsvorrichtung in Schreib- oder ähnlichen Büromaschinen
JPS6024980A (ja) * 1983-07-20 1985-02-07 Tokyo Electric Co Ltd タイプライタ
JPS60109952U (ja) * 1983-12-28 1985-07-25 シチズン時計株式会社 プリンタのキヤリツジ緊張装置
JPS59209179A (ja) * 1984-04-13 1984-11-27 Matsushita Electric Ind Co Ltd プリンタ

Also Published As

Publication number Publication date
US5098209A (en) 1992-03-24
ATE71881T1 (de) 1992-02-15
DE3608000A1 (de) 1987-09-24
EP0236774A3 (en) 1989-10-04
EP0236774A2 (de) 1987-09-16
JPS62221570A (ja) 1987-09-29
DE3776163D1 (de) 1992-03-05
DE3608000C2 (enrdf_load_stackoverflow) 1988-08-04

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