EP0280864A3 - Needle print head - Google Patents

Needle print head Download PDF

Info

Publication number
EP0280864A3
EP0280864A3 EP88100870A EP88100870A EP0280864A3 EP 0280864 A3 EP0280864 A3 EP 0280864A3 EP 88100870 A EP88100870 A EP 88100870A EP 88100870 A EP88100870 A EP 88100870A EP 0280864 A3 EP0280864 A3 EP 0280864A3
Authority
EP
European Patent Office
Prior art keywords
hinged armature
needle
yoke
print head
radially
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
EP88100870A
Other languages
German (de)
Other versions
EP0280864B1 (en
EP0280864A2 (en
Inventor
Herbert Beck
Karl-Heinz Anton
Harald Homner
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.)
Wincor Nixdorf International GmbH
Original Assignee
Nixdorf Computer 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 Nixdorf Computer AG filed Critical Nixdorf Computer AG
Priority to AT88100870T priority Critical patent/ATE66184T1/en
Publication of EP0280864A2 publication Critical patent/EP0280864A2/en
Publication of EP0280864A3 publication Critical patent/EP0280864A3/en
Application granted granted Critical
Publication of EP0280864B1 publication Critical patent/EP0280864B1/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

Landscapes

  • Impact Printers (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Sheet Holders (AREA)
  • Paper (AREA)

Abstract

In a needle print head including a plurality of hinged armature magnets arranged in a ring about a needle guide with each of the magnets including a U-shaped magnet yoke, a magnet coil on one of the U-legs of such yoke and a hinged armature arranged at least nearly radially, the hinged armature at its radially inner end is connected to a print needle and is biased by spring force to a rest position away from the yoke at which it engages a stop, each hinged armature at its radially outer end being pivotally supported by a cylindrical pin for rotation about the axis of the pin, and a return spring engaging the hinged armature at a point between the print needle and the radially inner yoke leg.
EP88100870A 1987-03-02 1988-01-21 Needle print head Expired - Lifetime EP0280864B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88100870T ATE66184T1 (en) 1987-03-02 1988-01-21 DOTSMAT PRINTHEAD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873706730 DE3706730A1 (en) 1987-03-02 1987-03-02 NEEDLE PRINT HEAD
DE3706730 1987-03-02

Publications (3)

Publication Number Publication Date
EP0280864A2 EP0280864A2 (en) 1988-09-07
EP0280864A3 true EP0280864A3 (en) 1989-01-04
EP0280864B1 EP0280864B1 (en) 1991-08-14

Family

ID=6322132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100870A Expired - Lifetime EP0280864B1 (en) 1987-03-02 1988-01-21 Needle print head

Country Status (6)

Country Link
US (1) US4838714A (en)
EP (1) EP0280864B1 (en)
JP (1) JPS63233849A (en)
AT (1) ATE66184T1 (en)
DE (2) DE3706730A1 (en)
ES (1) ES2024557B3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE103538T1 (en) * 1989-12-18 1994-04-15 Mannesmann Ag MATRIX PRINT HEAD, IN PARTICULAR SERIAL DOCUMENT MATRIX PRINT HEAD.
US7314323B2 (en) * 2003-09-03 2008-01-01 Toshiba Tec Kabushiki Kaisha Wire dot printer head and wire dot printer
JP2005254663A (en) * 2004-03-12 2005-09-22 Toshiba Tec Corp Wire dot printer head and wire dot printer
JP4515121B2 (en) * 2004-03-15 2010-07-28 東芝テック株式会社 Wire dot printer head and wire dot printer
CN112943824A (en) * 2021-04-07 2021-06-11 浙江弗尔德驱动科技有限公司 Brake of integrated multi-point braking heavy-load elevator tractor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2026401A1 (en) * 1968-12-18 1970-10-18 Rootes Motors Ltd
DE2256813A1 (en) * 1971-11-20 1973-05-30 Ricoh Kk POINT PRINTER
US4242004A (en) * 1979-03-21 1980-12-30 Extel Corporation Dot matrix printhead driver
US4382701A (en) * 1981-05-27 1983-05-10 International Computers Ltd. Wire matrix printing apparatus

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2001411B2 (en) * 1969-02-05 1973-05-03 Aritma, N.P., Prag MOSAIC WIRE PRINTER
DE2056364B2 (en) * 1970-11-17 1976-05-13 Offermann, Karl Heinz, 4322 Sprockhövel Electromagnetic system for mosaic printer - has circular yokes with ring of trapezium section pole pieces which retain coils
US3929214A (en) * 1974-09-18 1975-12-30 D & D Ass Wire matrix ballistic impact print head
US4167343A (en) * 1976-09-27 1979-09-11 Golobay Gary L Print wire actuator mechanism
SE404898B (en) * 1976-10-11 1978-11-06 Facit Ab DEVICE FOR POINT-PERFORMED INFORMATION MEDIUM
DE2717077C3 (en) * 1977-04-18 1980-10-23 Nixdorf Computer Ag, 4790 Paderborn Holder for a hinged armature magnet of a mosaic print head
US4175076A (en) * 1977-11-21 1979-11-20 Eli Lilly And Company Azetidinone mercury sulfides and process therefor
IL56669A0 (en) * 1978-02-15 1979-05-31 Nori Sinoto Matrix printer
JPS54152517A (en) * 1978-05-19 1979-11-30 Mitsubishi Electric Corp Printer
JPS5555717A (en) * 1978-10-17 1980-04-23 Chuo Kaihatsu Kk Inserting a self-boring type measurment instrument
US4320981A (en) * 1980-03-10 1982-03-23 Data General Corporation Matrix printhead apparatus
JPS56150570A (en) * 1980-04-24 1981-11-21 Tokyo Electric Co Ltd Driving device for wire head of dot printer
US4349283A (en) * 1980-09-05 1982-09-14 General Instrument Corporation Hammer for dot matrix printer
US4396304A (en) * 1981-11-24 1983-08-02 International Computers Limited Print head and drive circuit
DE3321301A1 (en) * 1983-06-13 1984-12-13 Montblanc-Simplo Gmbh, 2000 Hamburg INK SUPPLY SYSTEM FOR WRITING INSTRUMENTS WORKING WITH LIQUID INK
US4652158A (en) * 1983-06-17 1987-03-24 Brother Kogyo Kabushiki Kaisha Armature support device for torsion spring print head
JPS602375A (en) * 1983-06-21 1985-01-08 Tokyo Electric Co Ltd Wire dot head
US4653943A (en) * 1984-03-27 1987-03-31 Brother Kogyo Kabushiki Kaisha Print head
JPS61118265A (en) * 1984-11-14 1986-06-05 Brother Ind Ltd Printing head for hot printer
JPS61268458A (en) * 1985-05-23 1986-11-27 Seikosha Co Ltd Printer head

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2026401A1 (en) * 1968-12-18 1970-10-18 Rootes Motors Ltd
DE2256813A1 (en) * 1971-11-20 1973-05-30 Ricoh Kk POINT PRINTER
US4242004A (en) * 1979-03-21 1980-12-30 Extel Corporation Dot matrix printhead driver
US4382701A (en) * 1981-05-27 1983-05-10 International Computers Ltd. Wire matrix printing apparatus

Also Published As

Publication number Publication date
ATE66184T1 (en) 1991-08-15
EP0280864B1 (en) 1991-08-14
JPS63233849A (en) 1988-09-29
US4838714A (en) 1989-06-13
ES2024557B3 (en) 1992-03-01
DE3706730C2 (en) 1990-04-05
EP0280864A2 (en) 1988-09-07
DE3706730A1 (en) 1988-09-15
DE3864161D1 (en) 1991-09-19

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