EP0216946B1 - Matrixdrucker, insbesondere Matrixzeilendrucker - Google Patents

Matrixdrucker, insbesondere Matrixzeilendrucker Download PDF

Info

Publication number
EP0216946B1
EP0216946B1 EP85112334A EP85112334A EP0216946B1 EP 0216946 B1 EP0216946 B1 EP 0216946B1 EP 85112334 A EP85112334 A EP 85112334A EP 85112334 A EP85112334 A EP 85112334A EP 0216946 B1 EP0216946 B1 EP 0216946B1
Authority
EP
European Patent Office
Prior art keywords
matrix
printer
holder
rollers
carrier
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
Application number
EP85112334A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0216946A1 (de
Inventor
Karl Puchegger
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.)
Mannesmann Tally GmbH Austria
Original Assignee
Mannesmann Tally GmbH Austria
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 Tally GmbH Austria filed Critical Mannesmann Tally GmbH Austria
Priority to AT85112334T priority Critical patent/ATE42064T1/de
Priority to EP85112334A priority patent/EP0216946B1/de
Priority to DE8585112334T priority patent/DE3569349D1/de
Priority to JP61227896A priority patent/JPS6299156A/ja
Priority to US06/913,080 priority patent/US4686899A/en
Publication of EP0216946A1 publication Critical patent/EP0216946A1/de
Application granted granted Critical
Publication of EP0216946B1 publication Critical patent/EP0216946B1/de
Expired legal-status Critical Current

Links

Images

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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface
    • B41J25/006—Mechanisms for bodily moving print heads or carriages parallel to the paper surface for oscillating, e.g. page-width print heads provided with counter-balancing means or shock absorbers
    • 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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/377—Cooling or ventilating arrangements

Definitions

  • the invention relates to a matrix printer, in particular a matrix line printer, with a carrier which can be made to move back and forth in a lightweight construction for the printing elements, the drive means for the printing elements having electromagnets with cable connections which consist of flexible strips and are connected to a character generator via switching logic are and are provided on the printer frame parallel to the direction of movement fixed bearings that abut guide projections.
  • EP-A 0 175 009 which has not been prepublished and is based on the preamble of claim 1.
  • the carrier receives the printing elements, which usually consist of plunger electromagnets with printing needles, and oscillates the printing elements back and forth over the recording medium, the recording medium being advanced by one dot spacing after each row of dots, hence the term line printer.
  • the support for the pressure elements is lightweight because of the mass to be moved.
  • the individual pressure elements are also equipped with the lowest possible mass.
  • the electrical power consumed by such a needle bank is not only converted into pressure energy, but partly into loss energy. This loss of energy manifests itself in the heating of the needle bank, whereby the heat largely flows into the metallic carrier.
  • the carrier heats up and expands in accordance with the known physical laws. A slight deformation is usually associated with this expansion, but this cannot be tolerated because the printing elements change their distance from the recording medium, which results in a changed, usually deteriorated, printed image on the recording medium after a few hours of operation.
  • the present invention is therefore based on the object, in a matrix printer, in particular in a matrix line printer, to mount the support for the printing elements in a suitable manner in which thermal stresses are largely avoided, so that bending or warping of the support is less or no more occur.
  • the carrier is mounted in a longitudinal guide which consists of two circular-cylindrical, coaxial guide pins which are fastened to the carrier ends and are movably mounted in longitudinal bearings in the longitudinal direction and in that the carrier is under spring force rests with the guide projections against the rollers and is additionally supported and fastened transversely to the longitudinal guide of the carrier by means of compression springs.
  • the carrier is now "floating", i.e. it is set up to absorb thermal stresses by displacement to a very small extent, the displacement of the carrier not having an effect on the printed image on the recording medium.
  • the carrier is nevertheless guided very precisely and is held in two mutually perpendicular planes by resilient means.
  • An improvement of the invention is that the stationary rollers form a vertical guide plane and the carrier is supported on the printer frame by means of pre-tensioned leaf springs. Due to their pretension, such leaf springs exert a torque on the carrier, due to which the carrier is always pressed onto the rollers by means of the guide projections. Such flat springs are particularly suitable due to their flat extension, in addition to the pressing force to allow a degree of freedom for the longitudinal movement of the carrier.
  • sliding bodies for the leaf springs are arranged on the printer frame over the guide length.
  • the leaf springs therefore rest on defined points in the guide direction on the sliding bodies, as a result of which the preload force of the leaf springs is kept constant in each case.
  • the sliding bodies be provided with a bevel for generating the preload.
  • the friction factor between the sliding bodies and the leaf springs can also be reduced by making the sliding bodies from self-lubricating plastic.
  • the matrix line printer has a printer frame 1, on which a carrier 2 can be made to move back and forth in a lightweight construction.
  • the carrier 2 carries the pressure elements 3, which e.g. plunger armature magnets lying in a horizontal line, e.g. 33 such plunger electromagnets, each with a pressure needle, are present and form a needle bank.
  • the pressure needles or the housing of the plunger armature electromagnets are aligned parallel and exactly horizontally and adjusted exactly perpendicular to a fixed pressure abutment 4.
  • the electrical power supplied via the plunger armature electromagnets and the cable connections is partially converted into heat, which is a long time represents an increase in operating temperature after a few hours of operation.
  • the carrier 2 is guided in several levels. First of all, guide pins 5, which slide in longitudinal bearings 6, are fastened to the carrier ends 2a and 2b. The longitudinal bearings 6 are fastened to the printer frame 1 by means of screws 7. A compensating mass body 8 is also provided, which is moved in the opposite direction to the carrier 2 and which has the guide pins 9, which are each guided in the longitudinal position 10. A longitudinal section 11, i.e. another component covers (visible in FIG. 1) the carrier 2, of which only the part lying under the printer frame 1 is visible in FIG. 1.
  • the part located above the printer frame 1 on the upper side 12, the profile bar 2d, to which the printing elements 3 are directly attached, has guide projections 13 which bear against rollers 14 which are stationary on the printer frame 1 (on the upper side 12) and which can rotate , but with a rigid axis 14a distributed over the length of the carrier 2 at intervals.
  • the carrier 2 is "floating" supported (Fig. 2 and 3). First of all, the carrier 2 is resiliently supported by means of screw bolts 15 and compression springs 16 arranged between them and a carrier base 2c, and at the same time is fastened against lifting upwards, i.e. secured. For a pivoting movement of the carrier 2, this attachment still allows freedom of movement.
  • leaf springs 20 are attached to the carrier 2 at intervals.
  • the length of the leaf springs 20 is matched to the back and forth movement of the carrier 2. This length is usually only two to three times the character width of the characters to be written.
  • the sliding bodies 18 distributed over the guide length are provided with a bevel 21.
  • the carrier 2 has (FIG. 3) in the carrier base 2c a centering sleeve 22 penetrating the latter, which is firmly pressed into a needle bank carrier 2e on the underside 17.
  • the compression spring 16 surrounds a centering sleeve 22.
  • the compression spring 16 is between a pressure disk 23 and clamped the head of the bolt 15.
  • the outer diameter of the centering sleeve 22 slides largely without play in the carrier base 2c.
  • the resilient ("floating") fastening of the carrier 2 shown in FIG. 3 is arranged several times in the longitudinal direction

Landscapes

  • Character Spaces And Line Spaces In Printers (AREA)
  • Impact Printers (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
EP85112334A 1985-09-28 1985-09-28 Matrixdrucker, insbesondere Matrixzeilendrucker Expired EP0216946B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT85112334T ATE42064T1 (de) 1985-09-28 1985-09-28 Matrixdrucker, insbesondere matrixzeilendrucker.
EP85112334A EP0216946B1 (de) 1985-09-28 1985-09-28 Matrixdrucker, insbesondere Matrixzeilendrucker
DE8585112334T DE3569349D1 (en) 1985-09-28 1985-09-28 Matrix printer, in particular a matrix line printer
JP61227896A JPS6299156A (ja) 1985-09-28 1986-09-26 マトリツクス・プリンタ−、とくにマトリツクス行プリンタ−
US06/913,080 US4686899A (en) 1985-09-28 1986-09-29 Shuttle mounting in matrix line printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85112334A EP0216946B1 (de) 1985-09-28 1985-09-28 Matrixdrucker, insbesondere Matrixzeilendrucker

Publications (2)

Publication Number Publication Date
EP0216946A1 EP0216946A1 (de) 1987-04-08
EP0216946B1 true EP0216946B1 (de) 1989-04-12

Family

ID=8193794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85112334A Expired EP0216946B1 (de) 1985-09-28 1985-09-28 Matrixdrucker, insbesondere Matrixzeilendrucker

Country Status (5)

Country Link
US (1) US4686899A (ja)
EP (1) EP0216946B1 (ja)
JP (1) JPS6299156A (ja)
AT (1) ATE42064T1 (ja)
DE (1) DE3569349D1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2908127B2 (ja) * 1992-07-29 1999-06-21 富士通株式会社 シャトル型プリンタ装置
US20080255582A1 (en) * 2007-04-11 2008-10-16 Harris John F Methods and Template Assembly for Implanting an Electrode Array in a Patient

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4883736A (ja) * 1972-02-08 1973-11-08
US4033255A (en) * 1975-11-13 1977-07-05 Printronix, Inc. Print hammer actuator for dot matrix printers
US4127334A (en) * 1976-10-18 1978-11-28 Oki Electric Industry Co., Ltd. Dot printer
JPS53133117A (en) * 1977-04-22 1978-11-20 Seikosha Kk Wire printer
JPS5854036B2 (ja) * 1980-12-01 1983-12-02 日本電気株式会社 プリンタ
EP0100388B1 (de) * 1982-08-05 1986-05-14 MANNESMANN Aktiengesellschaft Vorrichtung zum Abführen der Wärme aus Matrixdruckern
ATE36137T1 (de) * 1984-09-18 1988-08-15 Mannesmann Tally Gmbh Matrixdrucker, insbesondere matrixzeilendrucker.

Also Published As

Publication number Publication date
US4686899A (en) 1987-08-18
EP0216946A1 (de) 1987-04-08
ATE42064T1 (de) 1989-04-15
DE3569349D1 (en) 1989-05-18
JPS6299156A (ja) 1987-05-08

Similar Documents

Publication Publication Date Title
DE2456816A1 (de) Druckkopf fuer drahtdrucker
DE2256813A1 (de) Nadeldrucker
DE2330883A1 (de) Mosaik-druckkopf
DE60304540T2 (de) Führungsanordnung für Tintenstrahldrucker
DE2819758A1 (de) Schlagloser serien-parallel- oder parallel-punktmatrixdrucker
DE2752061C3 (de) Einrichtung zur Einstellung des Abstandes eines Druckkopfes senkrecht zum Druckwiderlager
DE2119415B2 (de) Elektromagnetischer Antrieb für die Nadel eines Nadeldruckers
DE2629235C2 (de) Punktdrucker mit zugeordnetem Aufzeichnungsmedium
DE2800880C3 (de) Drahtdrucker
DE1245627B (de) Druckhammereinrichtung
EP0216946B1 (de) Matrixdrucker, insbesondere Matrixzeilendrucker
DE2360435A1 (de) Drahtdruckvorrichtung
DE2945622A1 (de) Vorrichtung zum schreiben von blindenschrift
DE3507782A1 (de) Halterung fuer einen thermodruckkopf
DE2841034A1 (de) Aufschlagdrucker und hammerreihenanordnung hierfuer
EP0098316B1 (de) Schwingrahmen-Vorrichtung für die Druckelemente eines Matrix-Zeilendruckers
DE2825527A1 (de) Druckvorrichtung
DE3490330T1 (de) Druckhammerbank
DE2805013B2 (de) Presse mit geringem Stößelhub
DE2253470B2 (de) Druckerkopf-baugruppe fuer mosaikdrucker
DE3038867A1 (de) Drucker, insbesondere thermoelektrischer drucker
EP0462684B1 (de) Matrixnadeldruckkopf
EP0171454B1 (de) Antriebseinrichtung für eine Typenträger-, Druckkopf-, Magnetkopf- und ähnliche Schlittenanordnung
DE2115956A1 (de) Druckkopf
DE10359820A1 (de) Einrichtung zum Fixieren einer Magnetschiene eines elektrischen Linearmotors an einem Träger

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19870518

17Q First examination report despatched

Effective date: 19880909

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB IT NL SE

REF Corresponds to:

Ref document number: 42064

Country of ref document: AT

Date of ref document: 19890415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3569349

Country of ref document: DE

Date of ref document: 19890518

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19890928

Ref country code: AT

Effective date: 19890928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19890929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890930

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: MANNESMANN TALLY G.M.B.H.

Effective date: 19890930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19900401

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19900531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19900601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 85112334.9

Effective date: 19900521