EP0082929A3 - Print hammer coil with a device for screening the magnetic field and for carrying off the heat - Google Patents

Print hammer coil with a device for screening the magnetic field and for carrying off the heat Download PDF

Info

Publication number
EP0082929A3
EP0082929A3 EP82109188A EP82109188A EP0082929A3 EP 0082929 A3 EP0082929 A3 EP 0082929A3 EP 82109188 A EP82109188 A EP 82109188A EP 82109188 A EP82109188 A EP 82109188A EP 0082929 A3 EP0082929 A3 EP 0082929A3
Authority
EP
European Patent Office
Prior art keywords
screening
carrying
heat
magnetic field
print hammer
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
EP82109188A
Other languages
English (en)
Other versions
EP0082929A2 (de
EP0082929B1 (de
Inventor
Ho Chong Lee
David Howard Rickenbach
Gerhard Adolf Wolfert
Jack Louis Zable
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of EP0082929A2 publication Critical patent/EP0082929A2/de
Publication of EP0082929A3 publication Critical patent/EP0082929A3/de
Application granted granted Critical
Publication of EP0082929B1 publication Critical patent/EP0082929B1/de
Expired 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
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/26—Means for operating hammers to effect impression
    • B41J9/38—Electromagnetic means
    • 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
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/02—Hammers; Arrangements thereof
    • B41J9/127—Mounting of hammers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Impact Printers (AREA)
EP82109188A 1981-12-30 1982-10-05 Druckhammerspule mit einer Anordnung zur Magnetfeldabschirmung und Wärmeabführung Expired EP0082929B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US335898 1981-12-30
US06/335,898 US4397234A (en) 1981-12-30 1981-12-30 Electromagnetic print hammer coil assembly

Publications (3)

Publication Number Publication Date
EP0082929A2 EP0082929A2 (de) 1983-07-06
EP0082929A3 true EP0082929A3 (en) 1984-03-14
EP0082929B1 EP0082929B1 (de) 1987-01-21

Family

ID=23313683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109188A Expired EP0082929B1 (de) 1981-12-30 1982-10-05 Druckhammerspule mit einer Anordnung zur Magnetfeldabschirmung und Wärmeabführung

Country Status (7)

Country Link
US (1) US4397234A (de)
EP (1) EP0082929B1 (de)
JP (1) JPS58118280A (de)
BR (1) BR8207160A (de)
CA (1) CA1186944A (de)
DE (1) DE3275168D1 (de)
ES (1) ES8401380A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4532862A (en) * 1983-07-01 1985-08-06 Centronics Data Computer Corp. Print hammer bank
JPS60171354U (ja) * 1984-04-20 1985-11-13 日立工機株式会社 印字装置の印字ハンマ機構
US6281776B1 (en) * 1999-05-05 2001-08-28 Sun Microsystems, Inc. Thermally isolating transformer
US6292079B1 (en) * 2000-09-08 2001-09-18 Yen-Chen Chan Coil assembly of speaker
US6950004B2 (en) * 2000-09-19 2005-09-27 Arthur Alexander Godoy Quadrilateral electromagnetic coil assembly
US7005954B2 (en) * 2003-12-04 2006-02-28 General Atomics Electronic Systems, Inc. High current long life inductor
ATE471568T1 (de) * 2004-08-23 2010-07-15 Det Int Holding Ltd Spulenform zur bildung eines induktiven elements
US20060250205A1 (en) * 2005-05-04 2006-11-09 Honeywell International Inc. Thermally conductive element for cooling an air gap inductor, air gap inductor including same and method of cooling an air gap inductor
JP5859360B2 (ja) * 2012-03-27 2016-02-10 住友重機械工業株式会社 リニアモータ冷却構造
JP5859361B2 (ja) * 2012-03-27 2016-02-10 住友重機械工業株式会社 リニアモータ冷却構造
WO2017047825A1 (ja) * 2015-09-18 2017-03-23 株式会社ティラド 積層型ヒートシンク
WO2019090358A1 (en) * 2017-11-06 2019-05-09 North Carolina State University Mixed material magnetic core for shielding of eddy current induced excess losses

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196783A (en) * 1963-05-10 1965-07-27 Potter Instrument Co Inc Printer magnet core
US4033255A (en) * 1975-11-13 1977-07-05 Printronix, Inc. Print hammer actuator for dot matrix printers
US4269117A (en) * 1979-07-11 1981-05-26 International Business Machines Corporation Electro-magnetic print hammer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187226A (en) * 1961-08-07 1965-06-01 Curtiss Wright Corp Miniaturized electrical apparatus with combined heat dissipating and insulating structure
USB411062I5 (de) * 1964-11-13
GB1159751A (en) * 1967-01-06 1969-07-30 Int Computers Ltd Improvements in or relating to Printing Apparatus.
US3590327A (en) * 1969-04-24 1971-06-29 Transmation Inc System for maintaining uniform temperature conditions throughout a body
US3764856A (en) * 1972-05-17 1973-10-09 Massachusetts Inst Technology Heat transfer in electronic equipment
US4009459A (en) * 1975-05-05 1977-02-22 Benson William H Resin-empotted dry-type electromagnet for dusty and gassey locations
US4044668A (en) * 1975-05-16 1977-08-30 Printronix, Inc. Print hammer mechanism
JPS5928975B2 (ja) * 1975-06-16 1984-07-17 松下電器産業株式会社 変成器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196783A (en) * 1963-05-10 1965-07-27 Potter Instrument Co Inc Printer magnet core
US4033255A (en) * 1975-11-13 1977-07-05 Printronix, Inc. Print hammer actuator for dot matrix printers
US4269117A (en) * 1979-07-11 1981-05-26 International Business Machines Corporation Electro-magnetic print hammer

Also Published As

Publication number Publication date
EP0082929A2 (de) 1983-07-06
DE3275168D1 (en) 1987-02-26
JPH0239393B2 (de) 1990-09-05
EP0082929B1 (de) 1987-01-21
BR8207160A (pt) 1983-10-11
ES518065A0 (es) 1983-12-01
ES8401380A1 (es) 1983-12-01
US4397234A (en) 1983-08-09
CA1186944A (en) 1985-05-14
JPS58118280A (ja) 1983-07-14

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