ES8102916A1 - Electromagnet actuator - Google Patents

Electromagnet actuator

Info

Publication number
ES8102916A1
ES8102916A1 ES492851A ES492851A ES8102916A1 ES 8102916 A1 ES8102916 A1 ES 8102916A1 ES 492851 A ES492851 A ES 492851A ES 492851 A ES492851 A ES 492851A ES 8102916 A1 ES8102916 A1 ES 8102916A1
Authority
ES
Spain
Prior art keywords
inserts
air gap
core
gap
armature
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
ES492851A
Other languages
Spanish (es)
Other versions
ES492851A0 (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 ES492851A0 publication Critical patent/ES492851A0/en
Publication of ES8102916A1 publication Critical patent/ES8102916A1/en
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
    • B41J9/02—Hammers; Arrangements thereof
    • B41J9/127—Mounting of hammers
    • 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
    • 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
    • H01F7/13—Electromagnets; Actuators including electromagnets with armatures characterised by pulling-force characteristics

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Impact Printers (AREA)
  • Electromagnets (AREA)

Abstract

The electromagnetic device can drive the characters in a high speed line printer, typically attached to the output of a computer. Two C-shaped ferromagnetic cores (24,27) are placed face to face with an air gap between opposing limbs. Each core has an individual winding (23,26) enclosing the whole core. The moving armature (18) is located in the air gap. It comprises a carrier of non-magnetic low density material (19) with ferrmagnetic inserts (20,21) at each end. The spacing between inserts corresponds to the spacing between limbs of the core, and the volume of ferromagnetic material is approx. equal to the air gap volume. At rest the inserts are clear of the gap and are linked by the smallest amount of flux. The inserts can be chevron shaped to assist with this requirement. When the coil is energised the armature moves rapidly into the gap. The coil switches off when the in-ine position is reached. Inertia carries the armature on into the working part of the stroke which presses the character against the paper.
ES492851A 1979-06-29 1980-06-27 Electromagnet actuator Expired ES8102916A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792926276 DE2926276A1 (en) 1979-06-29 1979-06-29 Electromagnetic actuator for high speed line printer - has low inertia moving parts and low power consumption

Publications (2)

Publication Number Publication Date
ES492851A0 ES492851A0 (en) 1981-02-16
ES8102916A1 true ES8102916A1 (en) 1981-02-16

Family

ID=6074481

Family Applications (1)

Application Number Title Priority Date Filing Date
ES492851A Expired ES8102916A1 (en) 1979-06-29 1980-06-27 Electromagnet actuator

Country Status (6)

Country Link
JP (1) JPS5931208B2 (en)
AU (1) AU541326B2 (en)
BR (1) BR8004021A (en)
CA (1) CA1135317A (en)
DE (1) DE2926276A1 (en)
ES (1) ES8102916A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1214588A (en) * 1981-11-09 1986-11-25 Union Carbide Corporation Process for preparing polyesters or poly(estercarbonates) in the presence of a processing aid
US4768892A (en) * 1985-07-29 1988-09-06 International Business Machines Corporation Electromagnetic hammer actuator for impact printer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5339989B2 (en) * 1973-12-17 1978-10-24

Also Published As

Publication number Publication date
AU541326B2 (en) 1985-01-03
BR8004021A (en) 1981-01-21
DE2926276A1 (en) 1981-01-08
ES492851A0 (en) 1981-02-16
CA1135317A (en) 1982-11-09
AU5974080A (en) 1981-02-05
JPS567412A (en) 1981-01-26
JPS5931208B2 (en) 1984-07-31

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