NL8502872A - Electro-magnetische aandrijfeenheid met zwenkbaar anker. - Google Patents

Electro-magnetische aandrijfeenheid met zwenkbaar anker. Download PDF

Info

Publication number
NL8502872A
NL8502872A NL8502872A NL8502872A NL8502872A NL 8502872 A NL8502872 A NL 8502872A NL 8502872 A NL8502872 A NL 8502872A NL 8502872 A NL8502872 A NL 8502872A NL 8502872 A NL8502872 A NL 8502872A
Authority
NL
Netherlands
Prior art keywords
stator
drive unit
armature
pole shoes
optical
Prior art date
Application number
NL8502872A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL8502872A priority Critical patent/NL8502872A/nl
Priority to US06/822,976 priority patent/US4731778A/en
Priority to DE19863634788 priority patent/DE3634788A1/de
Priority to GB8624964A priority patent/GB2183930B/en
Priority to JP61247658A priority patent/JPS6299966A/ja
Priority to FR868614530A priority patent/FR2588990B1/fr
Publication of NL8502872A publication Critical patent/NL8502872A/nl
Priority to SG892/90A priority patent/SG89290G/en
Priority to HK897/91A priority patent/HK89791A/xx

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08576—Swinging-arm positioners
    • 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
    • H01F7/145—Rotary electromagnets with variable gap

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Moving Of Heads (AREA)
NL8502872A 1985-10-22 1985-10-22 Electro-magnetische aandrijfeenheid met zwenkbaar anker. NL8502872A (nl)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL8502872A NL8502872A (nl) 1985-10-22 1985-10-22 Electro-magnetische aandrijfeenheid met zwenkbaar anker.
US06/822,976 US4731778A (en) 1985-10-22 1986-01-27 Electro-magnetic drive unit comprising a pivotable armature
DE19863634788 DE3634788A1 (de) 1985-10-22 1986-10-11 Schwenkarmvorrichtung mit elektromagnetischer antriebseinheit
GB8624964A GB2183930B (en) 1985-10-22 1986-10-17 Pivotal-arm device comprising an electro-magnetic drive
JP61247658A JPS6299966A (ja) 1985-10-22 1986-10-20 回動ア−ム装置
FR868614530A FR2588990B1 (fr) 1985-10-22 1986-10-20 Dispositif a bras de pivotement, muni d'une unite d'entrainement electromagnetique
SG892/90A SG89290G (en) 1985-10-22 1990-10-31 Pivotal-arm device comprising an electro-magnetic drive
HK897/91A HK89791A (en) 1985-10-22 1991-11-07 Pivotal-arm device comprising and electro-magnetic drive

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8502872A NL8502872A (nl) 1985-10-22 1985-10-22 Electro-magnetische aandrijfeenheid met zwenkbaar anker.
NL8502872 1985-10-22

Publications (1)

Publication Number Publication Date
NL8502872A true NL8502872A (nl) 1987-05-18

Family

ID=19846743

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8502872A NL8502872A (nl) 1985-10-22 1985-10-22 Electro-magnetische aandrijfeenheid met zwenkbaar anker.

Country Status (8)

Country Link
US (1) US4731778A (xx)
JP (1) JPS6299966A (xx)
DE (1) DE3634788A1 (xx)
FR (1) FR2588990B1 (xx)
GB (1) GB2183930B (xx)
HK (1) HK89791A (xx)
NL (1) NL8502872A (xx)
SG (1) SG89290G (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0750528B2 (ja) * 1987-06-25 1995-05-31 三菱電機株式会社 対物レンズ駆動装置
DE69024511T2 (de) * 1989-02-10 1996-06-13 Toshiba Kawasaki Kk Gerät zum Verstellen einer Objektivlinse
FR2653589B1 (fr) * 1989-10-23 1993-04-09 Moving Magnet Tech Actionneur electromagnetique monophase.
JP3040887B2 (ja) * 1992-10-14 2000-05-15 パイオニア株式会社 情報記録装置
JP2718443B2 (ja) * 1994-09-22 1998-02-25 セイコープレシジョン株式会社 揺動モータ
US5990584A (en) * 1998-08-25 1999-11-23 Eaton Corporation Direct current torque motor with extended stator poles
EP3937357B1 (en) * 2018-12-20 2024-03-20 Abb Schweiz Ag Actuator for a medium voltage circuit breaker

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912283A (en) * 1974-09-10 1975-10-14 Rca Corp Turntable speed lock system
US3970980A (en) * 1975-05-15 1976-07-20 Victor Nelson Rotary actuator having stationary armature and rotary field
US4087095A (en) * 1976-12-02 1978-05-02 Masuo Koda Pneumatic record player
GB1604122A (en) * 1977-04-08 1981-12-02 Sony Corp Dc motors
GB1603969A (en) * 1977-05-26 1981-12-02 Matsushita Electric Ind Co Ltd Rotary electrical machine
JPS5926789Y2 (ja) * 1977-09-22 1984-08-03 ソニー株式会社 レコ−ドプレ−ヤ
JPS5476202A (en) * 1977-11-30 1979-06-18 Sony Corp Record player
JPS5720927A (en) * 1980-07-09 1982-02-03 Olympus Optical Co Ltd Objective lens driver
NL8103960A (nl) * 1981-08-26 1983-03-16 Philips Nv Zwenkarminrichting voor een optische aftasteenheid.
JPS58108039A (ja) * 1981-12-19 1983-06-28 Pioneer Electronic Corp 光学式情報記録再生装置における光学系駆動装置
US4620301A (en) * 1982-12-20 1986-10-28 Ricoh Company, Ltd. Recording disk drive unit
JPS6089838A (ja) * 1983-10-24 1985-05-20 Asahi Optical Co Ltd 光学的情報記録再生装置における対物レンズ駆動装置のトラツク方向中立位置設定装置
JPS60226759A (ja) * 1984-04-23 1985-11-12 Yaskawa Electric Mfg Co Ltd ブラシレスモ−タ
JPH0444905Y2 (xx) * 1984-10-19 1992-10-22

Also Published As

Publication number Publication date
HK89791A (en) 1991-11-15
FR2588990B1 (fr) 1990-08-17
GB2183930B (en) 1989-10-11
GB2183930A (en) 1987-06-10
FR2588990A1 (fr) 1987-04-24
JPS6299966A (ja) 1987-05-09
DE3634788A1 (de) 1987-04-23
GB8624964D0 (en) 1986-11-19
SG89290G (en) 1990-12-21
US4731778A (en) 1988-03-15

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BI The patent application has been withdrawn