EP0157727A3 - Matrix print head - Google Patents

Matrix print head Download PDF

Info

Publication number
EP0157727A3
EP0157727A3 EP85730036A EP85730036A EP0157727A3 EP 0157727 A3 EP0157727 A3 EP 0157727A3 EP 85730036 A EP85730036 A EP 85730036A EP 85730036 A EP85730036 A EP 85730036A EP 0157727 A3 EP0157727 A3 EP 0157727A3
Authority
EP
European Patent Office
Prior art keywords
hinged
print head
armatures
base plate
magnetic
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
EP85730036A
Other languages
German (de)
Other versions
EP0157727B1 (en
EP0157727A2 (en
Inventor
Bernd Dipl.-Ing. Gugel
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 AT85730036T priority Critical patent/ATE56182T1/en
Publication of EP0157727A2 publication Critical patent/EP0157727A2/en
Publication of EP0157727A3 publication Critical patent/EP0157727A3/en
Application granted granted Critical
Publication of EP0157727B1 publication Critical patent/EP0157727B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/27—Actuators for print wires
    • B41J2/275—Actuators for print wires of clapper type
    • 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

Landscapes

  • Impact Printers (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Magnetic Heads (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

1. A matrix print head with printing wires (8) which can be operated to print selectively by means of an electromagnet coil (21) allocated to each printing wire (8) with magnetic hinged armatures (18) for the dot-wise formation of characters on a record carrier (3), with the printing wires (8) resting against the inner ends of the associated hinged armatures (18) and being mounted and guided in a forward part of the print head housing (5) and the magnetic hinged armatures (18) in the rear part of the print head housing (5), and with the electromagnet coils (21) being combined on a base plate (24) to form a magnet block (23) and the base plate (24) being connected to the print head housing (5), with the base plate (24) of the magnet block (23) together with the magnet yokes (22a and 22b) consisting of a one-piece coil holder (25) receiving the electromagnet coils (21), the coil holder (25) being connected to a coaxially aligned core bushing (27), the printing wires (8) extending away from the side of the magnetic hinged armatures (18) which is opposite the side of these hinged armatures (18) facing the base plate (24), and the point of rotation of the hinged armatures being located between the two hinged armature ends and on the respective inner pole arms (22b) of the magnet yokes (22a, 22b), characterised in that the coil holder (25) is rigidly connected to the core bushing (27), with the end face (28) of the core bushing (27) which faces the inner hinged armature ends lying at an exact tolerance distance (30) from the end face (29) of the magnet yokes (22a, 22b) due to subsequent machining, and that a stop disc (31) is arranged on the core bushing (27) centrally for the inner ends of the magnetic hinged armatures (18) in such a manner that its stop surface (31b) is at a tolerance distance from the end face (29) of the magnet yokes (22a, 22b).
EP85730036A 1984-04-03 1985-03-05 Matrix print head Expired - Lifetime EP0157727B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85730036T ATE56182T1 (en) 1984-04-03 1985-03-05 MATRIX PRINT HEAD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3412855 1984-04-03
DE19843412855 DE3412855A1 (en) 1984-04-03 1984-04-03 MATRIX PRINT HEAD

Publications (3)

Publication Number Publication Date
EP0157727A2 EP0157727A2 (en) 1985-10-09
EP0157727A3 true EP0157727A3 (en) 1986-12-30
EP0157727B1 EP0157727B1 (en) 1990-09-05

Family

ID=6232783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85730036A Expired - Lifetime EP0157727B1 (en) 1984-04-03 1985-03-05 Matrix print head

Country Status (4)

Country Link
EP (1) EP0157727B1 (en)
JP (1) JPS60225764A (en)
AT (1) ATE56182T1 (en)
DE (2) DE3412855A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540761A1 (en) * 1985-11-16 1987-05-21 Mannesmann Ag MATRIX PRINT HEAD
ATE105782T1 (en) * 1988-12-01 1994-06-15 Mannesmann Ag MATRIX PIN PRINT HEAD OF FLAP ANCHOR DESIGN.
US5163759A (en) * 1990-10-10 1992-11-17 Brady Usa, Inc. Signmaking machine using character forming tool for overlapping impacts and web scoring
US5865544A (en) * 1997-04-18 1999-02-02 Panini S.P.A. Dot-matrix print head, in particular for magnetic ink printers
CN102744975B (en) * 2011-04-22 2014-12-03 多美科信息科技（深圳）有限公司 Printing head
CN104553346A (en) * 2013-10-21 2015-04-29 大连中盈科技有限公司 Needle printer printing head capable of continuously printing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000084A (en) * 1977-06-23 1979-01-04 Hebert D Matrix print head assembly
EP0053887A1 (en) * 1980-12-05 1982-06-16 Tokyo Electric Co. Ltd. Printing head of dot printer
EP0067542A1 (en) * 1981-06-04 1982-12-22 Tokyo Electric Co. Ltd. Printing head of dot printer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2800218C2 (en) * 1978-01-04 1980-02-07 Triumph Werke Nuernberg Ag, 8500 Nuernberg Dot matrix print head
US4230412A (en) * 1978-03-17 1980-10-28 Helmut Falk Matrix print head assembly
JPS6212613Y2 (en) * 1980-08-11 1987-04-01
JPS5734979A (en) * 1980-08-11 1982-02-25 Brother Ind Ltd Type head for dot printer
JPS5818373U (en) * 1981-07-24 1983-02-04 日本電気株式会社 electronic equipment equipment
JPS58117935U (en) * 1982-02-05 1983-08-11 東芝テック株式会社 dot printer print head
JPS58145737U (en) * 1982-03-26 1983-09-30 東芝テック株式会社 dot printer print head
JPS58177373A (en) * 1982-04-12 1983-10-18 Hitachi Ltd Printing head
DE3243475C2 (en) * 1982-11-22 1987-02-26 Mannesmann AG, 4000 Düsseldorf Needle print head for matrix printer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000084A (en) * 1977-06-23 1979-01-04 Hebert D Matrix print head assembly
EP0053887A1 (en) * 1980-12-05 1982-06-16 Tokyo Electric Co. Ltd. Printing head of dot printer
EP0067542A1 (en) * 1981-06-04 1982-12-22 Tokyo Electric Co. Ltd. Printing head of dot printer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, Band 8, Nr.16 (M-270)[1453], 24. Januar 1984; & JP-A- 58 177 373 (HITACHI SEISAKUSHO K.K.) 18.10.1983 *

Also Published As

Publication number Publication date
JPH0481513B2 (en) 1992-12-24
ATE56182T1 (en) 1990-09-15
DE3412855C2 (en) 1991-06-13
EP0157727B1 (en) 1990-09-05
DE3579487D1 (en) 1990-10-11
EP0157727A2 (en) 1985-10-09
DE3412855A1 (en) 1985-10-03
JPS60225764A (en) 1985-11-11

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