ES8103411A1 - Print element actuator for a wire printer. - Google Patents

Print element actuator for a wire printer.

Info

Publication number
ES8103411A1
ES8103411A1 ES491905A ES491905A ES8103411A1 ES 8103411 A1 ES8103411 A1 ES 8103411A1 ES 491905 A ES491905 A ES 491905A ES 491905 A ES491905 A ES 491905A ES 8103411 A1 ES8103411 A1 ES 8103411A1
Authority
ES
Spain
Prior art keywords
magnet
electro
armature
permanent magnet
wire
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
ES491905A
Other languages
Spanish (es)
Other versions
ES491905A0 (en
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 ES8103411A1 publication Critical patent/ES8103411A1/en
Publication of ES491905A0 publication Critical patent/ES491905A0/en
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • 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
    • B41J2/285—Actuators for print wires of plunger type
    • 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
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets

Abstract

1. Print element actuator for a wire printer of the type including : an electro-magnet (58) and a permanent magnet, each of them having the form of a hollow cylinder, an armature (50) affixed to the print wire and positioned within said electro-magnet and said permanent magnet so that said armature can move a predetermined distance between a metal back stop (54) and a front stop (64), a first magnetic circuit, including the electromagnet, the armature and the front stop, and through which flux flows when the electro-magnet is energized, this flux controlling the forward movement of the print wire, a second magnetic circuit, including the permanent magnet and the armature and through which flux flows when the electro-magnet is not energized, this flux controlling the reverse movement of the print wire, this actuator being characterized in that : a cylindrically shaped hollow piece (76) is positioned between the electro-magnet and the permanent magnet to set up a magnetic circuit with the electro-magnet, the front stop and the armature and the backside stop is formed of a non-magnetic material.
ES491905A 1979-05-29 1980-05-28 THREAD PRINTING ELEMENT CONTROL DEVICE Granted ES491905A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4318379A 1979-05-29 1979-05-29

Publications (2)

Publication Number Publication Date
ES8103411A1 true ES8103411A1 (en) 1981-02-16
ES491905A0 ES491905A0 (en) 1981-02-16

Family

ID=21925911

Family Applications (1)

Application Number Title Priority Date Filing Date
ES491905A Granted ES491905A0 (en) 1979-05-29 1980-05-28 THREAD PRINTING ELEMENT CONTROL DEVICE

Country Status (8)

Country Link
EP (1) EP0019706B1 (en)
JP (1) JPS55161673A (en)
AU (1) AU529042B2 (en)
BR (1) BR8003344A (en)
CA (1) CA1136198A (en)
DE (1) DE3064880D1 (en)
ES (1) ES491905A0 (en)
IT (1) IT1151029B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03126970A (en) * 1989-10-12 1991-05-30 Masanobu Nakamura Roll for copying machine and production thereof
US5793392A (en) * 1995-06-13 1998-08-11 Tschida; Mark J. Printing apparatus and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2126491A5 (en) * 1971-02-08 1972-10-06 Burroughs Corp
FR2228619B3 (en) * 1973-05-10 1977-03-11 Lrc Inc
DE2614004A1 (en) * 1975-04-16 1976-10-28 Bridon Engineering Ltd ACTUATION DEVICE
JPS5239414A (en) * 1975-09-25 1977-03-26 Oki Electric Ind Co Ltd Type solenoid

Also Published As

Publication number Publication date
IT1151029B (en) 1986-12-17
CA1136198A (en) 1982-11-23
AU5813980A (en) 1980-12-04
DE3064880D1 (en) 1983-10-27
JPS6122638B2 (en) 1986-06-02
IT8020721A0 (en) 1980-03-18
EP0019706B1 (en) 1983-09-21
BR8003344A (en) 1980-12-30
AU529042B2 (en) 1983-05-26
JPS55161673A (en) 1980-12-16
EP0019706A1 (en) 1980-12-10
IT8020721A1 (en) 1982-06-18
ES491905A0 (en) 1981-02-16

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