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GB1397890A - Electromagnetic actuator - Google Patents

Electromagnetic actuator

Info

Publication number
GB1397890A
GB1397890A GB5295373A GB5295373A GB1397890A GB 1397890 A GB1397890 A GB 1397890A GB 5295373 A GB5295373 A GB 5295373A GB 5295373 A GB5295373 A GB 5295373A GB 1397890 A GB1397890 A GB 1397890A
Authority
GB
United Kingdom
Prior art keywords
coil
source
core
electromagnetic actuator
magnetic field
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
GB5295373A
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 GB1397890A publication Critical patent/GB1397890A/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
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
    • B41J19/20—Positive-feed character-spacing mechanisms
    • B41J19/30—Electromagnetically-operated mechanisms
    • B41J19/305—Linear drive mechanisms for carriage movement
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/035—DC motors; Unipolar motors
    • H02K41/0352—Unipolar motors
    • H02K41/0354—Lorentz force motors, e.g. voice coil motors
    • H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Linear Motors (AREA)

Abstract

1397890 Linear motors INTERNATIONAL BUSINESS MACHINES CORP 15 Nov 1973 [19 Dec 1972] 52953/73 Heading H2A An electromagnetic actuator comprises a magnetic field source 4 having two elongate parallel surfaces, the direction 16 of the magnetic field being perpendicular to the two surfaces, an elongate member 2 of magnetic material disposed parallel to but spaced from the source 4, a coil 8 mounted around and movable relative to the member 2 and a flux return member 6 completing the magnetic circuit of the source 4. The source 4 may comprise a permanent magnet or a coil or both. The coil 8 is D.C. energized. A core 12, Fig. 4 (not shown), fills that part of the coil 8 not occupied by the member 2 and is connected to a core 10 in rolling or sliding engagement with the stationary part of the actuator.
GB5295373A 1972-12-19 1973-11-15 Electromagnetic actuator Expired GB1397890A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31664572A 1972-12-19 1972-12-19

Publications (1)

Publication Number Publication Date
GB1397890A true GB1397890A (en) 1975-06-18

Family

ID=23229983

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5295373A Expired GB1397890A (en) 1972-12-19 1973-11-15 Electromagnetic actuator

Country Status (6)

Country Link
JP (1) JPS5212362B2 (en)
CA (1) CA990335A (en)
DE (1) DE2360973C2 (en)
FR (1) FR2210857B1 (en)
GB (1) GB1397890A (en)
IT (1) IT1001552B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359289A (en) * 1979-11-20 1982-11-16 Printronix, Inc. Counterbalanced bidirectional shuttle drive having linear motor
DE3671138D1 (en) * 1985-11-13 1990-06-13 Sharp Kk LINEAR MOTOR.
GB8805420D0 (en) * 1988-03-08 1988-04-07 Framo Dev Ltd Electrically powered pump unit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1134117A (en) * 1954-09-27 1957-04-08 Schubert & Salzer Maschinen Method and device for driving machine parts back and forth using alternating magnetic fields
US3440464A (en) * 1965-08-02 1969-04-22 Sperry Rand Corp Electromagnetic apparatus
US3588767A (en) * 1969-02-13 1971-06-28 Esterline Corp Servomotor shuttle guide assembly
NL7107133A (en) * 1970-05-28 1971-11-30

Also Published As

Publication number Publication date
FR2210857B1 (en) 1978-03-10
JPS4989808A (en) 1974-08-28
FR2210857A1 (en) 1974-07-12
DE2360973C2 (en) 1982-04-29
JPS5212362B2 (en) 1977-04-06
CA990335A (en) 1976-06-01
IT1001552B (en) 1976-04-30
DE2360973A1 (en) 1974-06-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee