EP0308566A1 - Machine de bureau, en particulier imprimante à matrice de points, avec ajustement de l'écart entre la tête d'impression et le cylindre de frappe - Google Patents

Machine de bureau, en particulier imprimante à matrice de points, avec ajustement de l'écart entre la tête d'impression et le cylindre de frappe Download PDF

Info

Publication number
EP0308566A1
EP0308566A1 EP87730110A EP87730110A EP0308566A1 EP 0308566 A1 EP0308566 A1 EP 0308566A1 EP 87730110 A EP87730110 A EP 87730110A EP 87730110 A EP87730110 A EP 87730110A EP 0308566 A1 EP0308566 A1 EP 0308566A1
Authority
EP
European Patent Office
Prior art keywords
locking plate
locking
print head
toothing
plate
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.)
Granted
Application number
EP87730110A
Other languages
German (de)
English (en)
Other versions
EP0308566B1 (fr
Inventor
Stefan Dipl.-Ing. Bischof (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 EP87730110A priority Critical patent/EP0308566B1/fr
Priority to AT87730110T priority patent/ATE83439T1/de
Priority to DE8787730110T priority patent/DE3783135D1/de
Priority to US07/248,488 priority patent/US4906115A/en
Publication of EP0308566A1 publication Critical patent/EP0308566A1/fr
Application granted granted Critical
Publication of EP0308566B1 publication Critical patent/EP0308566B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
    • B41J25/3088—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms with print gap adjustment means on the printer frame, e.g. for rotation of an eccentric carriage guide shaft
    • 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
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms

Definitions

  • the invention relates to an office machine, in particular a Marix printer, with a device for setting the smallest writing distance between a print head and a platen, which has a front and a rear carriage guide axis, on which the carriage with the print head is guided in front of the platen, the front Carriage guide axis is adjustably supported against the writing abutment in side boards.
  • Such "basic settings" between a printhead and a writing abutment correspond to the functionally important distance of the printing elements, so that the distance can no longer be changed by the user in the sense of a reduction.
  • a matrix needle printhead in which the stroke of the printing needles is approximately 0.2 to 0.5 mm may serve as an example. A distance smaller than 0.2 mm would therefore no longer be possible here, regardless of the paper thickness selected by the user. After such a “basic setting" has been made in the manufacturing plant, the user can no longer set this minimum distance smaller.
  • the slide guide axis is guided in sliding blocks which are provided on the side boards of the printer frame.
  • the slide guide axis is guided towards or away from the writing abutment.
  • the slide guide axis is screwed to the side boards.
  • the object of the invention is to reduce the number of simple parts when designing them, to achieve simple assembly and quick and reliable adjustment.
  • the stated object is achieved in the office machine described in the introduction in that the front carriage guide axis is rotatably supported in the side boards by means of eccentrics, in that an adjusting lever is fastened on the front carriage guide axis outside a side board, that a locking plate is assigned to the adjusting lever on the side board , Which has a rear and a front stop for the actuating lever and that the locking plate is adjustable in a guide after releasing a lock between the locking plate and side plate by an acute angle about the horizontal axis of the front carriage guide thing, the position of the front stop the minimum distance of the Print head from the abutment corresponds.
  • the control lever only a single component, namely the locking plate, is required, which combines several functions.
  • the locking plate can be attached as a compact part in the side board with little effort, it can be made adjustable and self-locking.
  • the stops can also already be part of the locking plate.
  • This locking plate can now be used in two different functions: On the one hand, the basic setting mentioned is carried out by sliding and the locking plate and, on the other hand, the user can still determine the distance of the print head from the platen according to the number of paper layers used by moving the adjusting lever. Nevertheless, a minimum distance, the so-called basic setting to the abutment, is guaranteed.
  • the locking plate is clipped into the respective side plate. Such a fastening design nevertheless allows the locking plate to be adjusted in the guide mentioned.
  • the locking plate has a radial toothing for the paper thickness adjustment on the end face and that the radial toothing has at least one locking tooth on the adjusting lever opposite.
  • the locking plate therefore takes over the function of setting the paper thickness for the user.
  • the locking between the side plate and the locking plate is formed from a toothing provided on a boundary edge of an arcuate opening in the side plate and a counter toothing provided on the locking plate, the counter toothing being arranged on a resilient lever part of the locking plate.
  • the lock can therefore be released and re-engaged with the simplest of means.
  • a printer frame consists of side boards 1 and 2, between which a writing abutment 3 and a front carriage guide axis 4 and a rear carriage guide axis 5 are fastened.
  • the carriage 6 is moved back and forth by means of a cable or belt drive 8 with a cable or belt 9.
  • the printhead 7 is located with the printing elements at a basic distance 10 from the surface of the recording medium which is currently resting on the abutment 3.
  • the front slide guide axis 4 is fastened in the side boards 1, 2 in each case by means of eccentrics 11 (FIG. 2).
  • eccentrics 11 On the eccentrics 11, an adjusting lever 12 is rotatably attached.
  • a locking plate 13 is attached to the wall surface of the side board 1.
  • the locking plate 13 can be injection molded from a one-piece plastic part made of plastic that can be plasticized.
  • a rear stop 14 and a front stop 15 are integrally formed on the locking plate 13.
  • a lock 16 described in more detail below is provided, the effect being extended to an acute angle 17.
  • the locking plate 13 is pivotable about the horizontal axis 11a of the slide guide axis 4 in a guide 18.
  • the guide 18 is formed here in each case by pins 19, which are also integrally formed on the locking plate 13 and elongated holes 20 in the side plate 1 (or 2).
  • the locking plate 13 is clipped into the respective side plate 1 or 2, the pins 19 being further developed into radially resilient pressure pins 21 (FIG. 5).
  • the locking plate 13 also has a radial toothing 22 for the paper thickness adjustment, here the setting lever 12 is moved in the directions 23 and 24 if the user wants to readjust the distance of the print head 7 to the paper surface on the abutment 3. Because of the larger adjustment path for different paper thicknesses, this radial toothing 22 is dimensioned correspondingly larger (FIG. 3).
  • the radial toothing 22 is located on the end face 25 of the locking plate 13; Opposite there is at least one locking tooth 26 on the actuating lever 12 (FIG. 4).
  • the lock 16 mentioned is constructed as follows: In the side board 1 (or 2) there is an opening 27 with a boundary edge 28 which forms a toothing 29. A single tooth as drawn is sufficient here.
  • counter teeth 30 are attached to the locking plate 13.
  • the counter-toothing 30 is provided on a resilient lever part 31 of the locking plate 13, the spring action in the plastic part being brought about by an elongated slot 32.
  • the actuating lever 12 When the smallest writing distance 10 is set, the actuating lever 12 is not moved. Rather, the above-mentioned locking mechanism 16 is moved in the direction 34 by means of a screwdriver 33 (FIG. 4), which is supported by an opening 33a on the actuating lever 12, as a result of which the counter toothing 30 in the locking plate 13 is raised in the direction 35 via the resilient lever part 31 and the lock is released.
  • the locking plate 13 in its guide 18 can be adjusted as desired to the smallest writing distance 10 between the print head 7 and the platen 3, the corresponding functional movement of the print head 7, e.g. can also be a thermal print head is taken into account.
  • Fig. 5 shows the unlocked state as Fig. 4. This setting of the smallest writing distance 10 is therefore carried out completely independently of the setting of the paper thickness with the aid of the adjusting lever 12.

Landscapes

  • Common Mechanisms (AREA)
EP87730110A 1987-09-23 1987-09-23 Machine de bureau, en particulier imprimante à matrice de points, avec ajustement de l'écart entre la tête d'impression et le cylindre de frappe Expired - Lifetime EP0308566B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP87730110A EP0308566B1 (fr) 1987-09-23 1987-09-23 Machine de bureau, en particulier imprimante à matrice de points, avec ajustement de l'écart entre la tête d'impression et le cylindre de frappe
AT87730110T ATE83439T1 (de) 1987-09-23 1987-09-23 Bueromaschine, insbesondere matrixdrucker, mit druckkopf/schreibwiderlager-abstandsjustage.
DE8787730110T DE3783135D1 (de) 1987-09-23 1987-09-23 Bueromaschine, insbesondere matrixdrucker, mit druckkopf/schreibwiderlager-abstandsjustage.
US07/248,488 US4906115A (en) 1987-09-23 1988-09-23 Apparatus for adjusting the minimum print heat to platen spacing in a printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87730110A EP0308566B1 (fr) 1987-09-23 1987-09-23 Machine de bureau, en particulier imprimante à matrice de points, avec ajustement de l'écart entre la tête d'impression et le cylindre de frappe

Publications (2)

Publication Number Publication Date
EP0308566A1 true EP0308566A1 (fr) 1989-03-29
EP0308566B1 EP0308566B1 (fr) 1992-12-16

Family

ID=8198363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87730110A Expired - Lifetime EP0308566B1 (fr) 1987-09-23 1987-09-23 Machine de bureau, en particulier imprimante à matrice de points, avec ajustement de l'écart entre la tête d'impression et le cylindre de frappe

Country Status (4)

Country Link
US (1) US4906115A (fr)
EP (1) EP0308566B1 (fr)
AT (1) ATE83439T1 (fr)
DE (1) DE3783135D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909254A1 (de) * 1989-03-21 1990-09-27 Esselte Meto Int Gmbh Thermodruckkopf
EP1721752A3 (fr) * 2005-05-12 2008-01-23 Toshiba Tec Kabushiki Kaisha Imprimante thermique

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8814238U1 (de) * 1988-11-14 1990-03-22 Siemens Nixdorf Informationssysteme AG, 33106 Paderborn Druckvorrichtung
US5000590A (en) * 1989-06-29 1991-03-19 Itt Corporation Print head adjustment mechanism
US5187497A (en) * 1989-09-18 1993-02-16 Canon Kabushiki Kaisha Ink jet recording apparatus having gap adjustment between the recording head and recording medium
US5293531A (en) * 1991-08-23 1994-03-08 Eastman Kodak Company Writing translator mount
JP3087442B2 (ja) * 1992-04-10 2000-09-11 ブラザー工業株式会社 印字装置
JP3655345B2 (ja) * 1995-04-12 2005-06-02 シチズン時計株式会社 インパクトドットプリンタのギャップ調整装置
JP3326780B2 (ja) * 1995-04-28 2002-09-24 セイコーエプソン株式会社 プリンタ
US5943917A (en) * 1997-10-16 1999-08-31 Honeywell Inc. Thermostat having a temperature setting lever with tactilely determinable position
US6027264A (en) * 1998-02-16 2000-02-22 Hewlett-Packard Company Fixtureless, accurate system and assembly method for controlling pen-to-paper spacing in an inkjet printer
US6450710B1 (en) 2000-07-14 2002-09-17 Lexmark International, Inc. Frame system for an ink jet printer
US6637958B2 (en) * 2000-10-30 2003-10-28 Vutek, Inc. Printing system with adjustable carriage rail support
DE10259569A1 (de) * 2002-12-19 2004-07-01 Hilti Ag Elektrohandwerkzeugmaschine mit kontaktlosem elektrischen Handschalter
JP4508937B2 (ja) * 2005-05-12 2010-07-21 キヤノン株式会社 記録装置
US7976231B2 (en) * 2007-12-13 2011-07-12 International Business Machines Corporation Method and apparatus for adjusting a gap in a printer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960256A (en) * 1974-10-21 1976-06-01 Digital Equipment Corporation Adjustable carriage apparatus
DE2842209A1 (de) * 1977-11-25 1979-06-07 Gen Electric Druckspalteinstellungsmechanismus fuer drucker
US4268177A (en) * 1978-11-01 1981-05-19 Plessey Peripheral Systems Paper thickness adjusting mechanism for impact printer
US4365900A (en) * 1980-03-06 1982-12-28 Triumph Adler, A.G. Printing plane adjusting mechanism
EP0236773A2 (fr) * 1986-03-11 1987-09-16 MANNESMANN Aktiengesellschaft Dispositif servant à régler la distance entre la tête d'impression et l'appui d'une imprimante, notamment d'une imprimante à matrice

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286888A (en) * 1978-12-28 1981-09-01 Centronics Data Computer Corp. Bi-directional belt drive, print head mounting means and printing plane adjustment means for serial printers
JPS60154091A (ja) * 1984-01-23 1985-08-13 Tokyo Electric Co Ltd プリンタの印字ヘツドギヤツプ調整装置
JPS61213178A (ja) * 1985-03-19 1986-09-22 Tokyo Electric Co Ltd 印字装置
IT1187968B (it) * 1986-03-11 1987-12-23 Olivetti & Co Spa Stampante seriale a punti con carrello portatestina mobile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960256A (en) * 1974-10-21 1976-06-01 Digital Equipment Corporation Adjustable carriage apparatus
DE2842209A1 (de) * 1977-11-25 1979-06-07 Gen Electric Druckspalteinstellungsmechanismus fuer drucker
US4268177A (en) * 1978-11-01 1981-05-19 Plessey Peripheral Systems Paper thickness adjusting mechanism for impact printer
US4365900A (en) * 1980-03-06 1982-12-28 Triumph Adler, A.G. Printing plane adjusting mechanism
EP0236773A2 (fr) * 1986-03-11 1987-09-16 MANNESMANN Aktiengesellschaft Dispositif servant à régler la distance entre la tête d'impression et l'appui d'une imprimante, notamment d'une imprimante à matrice

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 319 (M-439)[2042], 14. Dezember 1985; & JP-A-60 154 091 (TOKYO DENKI K.K.) 13-08-1985 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909254A1 (de) * 1989-03-21 1990-09-27 Esselte Meto Int Gmbh Thermodruckkopf
EP1721752A3 (fr) * 2005-05-12 2008-01-23 Toshiba Tec Kabushiki Kaisha Imprimante thermique
US7611299B2 (en) 2005-05-12 2009-11-03 Toshiba Tec Kabushiki Kaisha Thermal printer

Also Published As

Publication number Publication date
EP0308566B1 (fr) 1992-12-16
DE3783135D1 (de) 1993-01-28
US4906115A (en) 1990-03-06
ATE83439T1 (de) 1993-01-15

Similar Documents

Publication Publication Date Title
EP0308566B1 (fr) Machine de bureau, en particulier imprimante à matrice de points, avec ajustement de l'écart entre la tête d'impression et le cylindre de frappe
EP0052408B1 (fr) Mécanisme d'impression ayant un organe d'enregistrement et des moyens pour tourner un support d'enregistrement
DE3342894A1 (de) Kassette fuer einen schreibkopf einer tintenschreibvorrichtung in einer schreibmaschine
DE3852043T2 (de) Papier-Zuführvorrichtung und Kassette hierfür.
DE19617167A1 (de) Drucker mit Führungswellenanordnung
DE2744371B2 (de) Vorrichtung zum Befestigen und Spannen von biegsamen Druckplatten
DE3008539C2 (de) Verstelleinrichtung des Aufzeichnungsträgeraggregates an Schreib- u.ä. Büromaschinen
DE69109074T2 (de) Doppelseitiges Druckgerät.
DE3151776C2 (de) Vorrichtung zum Lagern und Einstellen eines Druckkopfes
DE2738855A1 (de) Vorrichtung zur papierfuehrung in druckgeraeten, insbesondere bei daten- und fernschreibmaschinen
EP0429808B1 (fr) Dispositif pour tendre avec un repérage exact une plaque d'impression sur un cylindre d'impression
DE1098525B (de) Tabuliereinrichtung an Schreibmaschinen
DE4332803C2 (de) Vorrichtung zum automatischen Zuführen von Druckplatten zum Plattenzylinder einer Druckmaschine
DE3226730A1 (de) Seriendrucker mit einer justiervorrichtung
DE2435756C2 (de) Vorrichtung für eine paßgenaue Anlage eines zu bedruckenden Bogens
DE2340980C2 (de) Vorrichtung zum Befestigen von Druckplatten
DE3112809C2 (fr)
DE3444561A1 (de) Steuermechanismus fuer das farbwerk einer druckmaschine
DE19838983A1 (de) Siebdruckvorrichtung
DE3118205A1 (de) Schwenkvorrichtung fuer ein druckwerk
DE2441861C3 (de) Vorsteckeinrichtung an Buchungsmaschinen
DE2153882C3 (de) Diaprojektor für Gefachmagazine
DE2603932C3 (de) Vorrichtung zum Justieren der Anschlagstärke der Typen bei kraftangetriebenen Schreib- o.a. Büromaschinen
DE225986C (fr)
EP0422483A2 (fr) Machine à écrire ou autre machine de bureau avec boîtier et couvercle

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 CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19890310

17Q First examination report despatched

Effective date: 19910228

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

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

Ref country code: NL

Effective date: 19921216

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19921216

Ref country code: BE

Effective date: 19921216

REF Corresponds to:

Ref document number: 83439

Country of ref document: AT

Date of ref document: 19930115

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILA

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3783135

Country of ref document: DE

Date of ref document: 19930128

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930222

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930923

Ref country code: AT

Effective date: 19930923

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

Ref country code: LI

Effective date: 19930930

Ref country code: CH

Effective date: 19930930

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
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930923

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19940601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050923