GB1326970A - Electromechanical actuator - Google Patents

Electromechanical actuator

Info

Publication number
GB1326970A
GB1326970A GB1620871*[A GB1620871A GB1326970A GB 1326970 A GB1326970 A GB 1326970A GB 1620871 A GB1620871 A GB 1620871A GB 1326970 A GB1326970 A GB 1326970A
Authority
GB
United Kingdom
Prior art keywords
arm
flux
magnetic
armature
face
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
GB1620871*[A
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 GB1326970A publication Critical patent/GB1326970A/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
    • B41J9/26—Means for operating hammers to effect impression
    • B41J9/36—Means for operating hammers to effect impression in which mechanical power is applied under electromagnetic control
    • 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
    • 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
    • H01F7/14—Pivoting armatures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system

Landscapes

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

Abstract

1326970 Electromagnetic devices INTERNATIONAL BUSINESS MACHINESS CORP 21 May 1971 [30 June 1970] 16208/71 Heading H1P An actuator e.g. for print hammer or punch operation comprises a C-shaped magnetic path through arm 12 and arm 14 extending through bucking coil 15 to terminate in face 23 held in place by cover plate 22, or is e.g. cast in a unit from magnetic material with bolt mounting of arm 14 to permit adjustment of the interface of pole 23 and armature 16. A permanent magnet 10 and magnetic column 13 are bonded together and to plate 22 so as to excite flux through armature path #1 and gap path #2. Initially the magnet is positively saturated (P in Fig. 4) and pulse energisation of coil 15, reduces the flux in #1 to zero by shifting the magnet operating point to T when a flux equal to that in #1 is additionally driven through gap 11 together with the flux in #2. On de-energization of coil 15 the induction of the permanent magnet returns to point P. The magnetic column 13 includes post 17 and the magnetic armature 16 movable relatively to face 23 and the post, and a gap 11 is inserted (over) between arm 12 and column 13. Lever arm 21 actuates the print hammer by face 18.
GB1620871*[A 1970-06-30 1971-05-21 Electromechanical actuator Expired GB1326970A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5105670A 1970-06-30 1970-06-30

Publications (1)

Publication Number Publication Date
GB1326970A true GB1326970A (en) 1973-08-15

Family

ID=21969074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1620871*[A Expired GB1326970A (en) 1970-06-30 1971-05-21 Electromechanical actuator

Country Status (8)

Country Link
US (1) US3659238A (en)
CA (1) CA931202A (en)
CH (1) CH528370A (en)
DE (1) DE2132354A1 (en)
FR (1) FR2095553A5 (en)
GB (1) GB1326970A (en)
NL (1) NL7108615A (en)
SE (1) SE360194B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5243126B2 (en) * 1972-08-23 1977-10-28
FR2273297B1 (en) * 1974-02-04 1977-04-15 Canon Kk
US4044668A (en) * 1975-05-16 1977-08-30 Printronix, Inc. Print hammer mechanism
US4033255A (en) * 1975-11-13 1977-07-05 Printronix, Inc. Print hammer actuator for dot matrix printers
US4233894A (en) * 1978-06-02 1980-11-18 Printronix, Inc. Print hammer mechanism having dual pole pieces
US4225250A (en) * 1978-10-10 1980-09-30 Tally Corporation Segmented-ring magnet print head
US4242658A (en) * 1978-12-29 1980-12-30 International Business Machines Corporation Magnetic actuator using modulated flux
JPS56135080A (en) * 1980-03-27 1981-10-22 Oki Electric Ind Co Ltd Wire dot head
JPS5749576A (en) * 1980-09-11 1982-03-23 Nec Corp Printing head of dot matrix printer
US4461207A (en) * 1980-11-17 1984-07-24 International Business Machines Corporation Actuator mechanism for a printer or the like using dual magnets
US4591280A (en) * 1985-01-22 1986-05-27 Mannesmann Tally Corporation Permanent magnet, stored energy, print head
NL8900007A (en) * 1989-01-03 1990-08-01 Holec Syst & Componenten STEERING FOR AN ELECTRIC SWITCH, AND AN ELECTRIC SWITCH EQUIPPED WITH THIS STEERING.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888290A (en) * 1956-02-27 1959-05-26 William C Pierce Door with magnetic catch
US3282203A (en) * 1964-04-16 1966-11-01 Burroughs Corp Magnetically operated print hammers in high speed printers
US3285166A (en) * 1964-12-18 1966-11-15 Data Products Corp High speed print hammer and bar magnet means
FR1479460A (en) * 1966-03-22 1967-05-05 Ind Electr De La Seine L Sensitive electromagnetic release with reset
US3449639A (en) * 1966-12-30 1969-06-10 Ibm Actuator driver circuit

Also Published As

Publication number Publication date
DE2132354A1 (en) 1972-02-10
CH528370A (en) 1972-09-30
NL7108615A (en) 1972-01-03
CA931202A (en) 1973-07-31
US3659238A (en) 1972-04-25
FR2095553A5 (en) 1972-02-11
SE360194B (en) 1973-09-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees