HK89791A - Pivotal-arm device comprising and electro-magnetic drive - Google Patents
Pivotal-arm device comprising and electro-magnetic driveInfo
- Publication number
- HK89791A HK89791A HK897/91A HK89791A HK89791A HK 89791 A HK89791 A HK 89791A HK 897/91 A HK897/91 A HK 897/91A HK 89791 A HK89791 A HK 89791A HK 89791 A HK89791 A HK 89791A
- Authority
- HK
- Hong Kong
- Prior art keywords
- pivotal
- electro
- magnetic drive
- arm device
- arm
- Prior art date
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8502872A NL8502872A (nl) | 1985-10-22 | 1985-10-22 | Electro-magnetische aandrijfeenheid met zwenkbaar anker. |
Publications (1)
Publication Number | Publication Date |
---|---|
HK89791A true HK89791A (en) | 1991-11-15 |
Family
ID=19846743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK897/91A HK89791A (en) | 1985-10-22 | 1991-11-07 | Pivotal-arm device comprising and electro-magnetic drive |
Country Status (8)
Country | Link |
---|---|
US (1) | US4731778A (fr) |
JP (1) | JPS6299966A (fr) |
DE (1) | DE3634788A1 (fr) |
FR (1) | FR2588990B1 (fr) |
GB (1) | GB2183930B (fr) |
HK (1) | HK89791A (fr) |
NL (1) | NL8502872A (fr) |
SG (1) | SG89290G (fr) |
Families Citing this family (7)
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 (fr) * | 2018-12-20 | 2024-03-20 | Abb Schweiz Ag | Actionneur pour un disjoncteur moyenne tension |
Family Cites Families (14)
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 (fr) * | 1984-10-19 | 1992-10-22 |
-
1985
- 1985-10-22 NL NL8502872A patent/NL8502872A/nl not_active Application Discontinuation
-
1986
- 1986-01-27 US US06/822,976 patent/US4731778A/en not_active Expired - Fee Related
- 1986-10-11 DE DE19863634788 patent/DE3634788A1/de not_active Ceased
- 1986-10-17 GB GB8624964A patent/GB2183930B/en not_active Expired
- 1986-10-20 FR FR868614530A patent/FR2588990B1/fr not_active Expired - Lifetime
- 1986-10-20 JP JP61247658A patent/JPS6299966A/ja active Pending
-
1990
- 1990-10-31 SG SG892/90A patent/SG89290G/en unknown
-
1991
- 1991-11-07 HK HK897/91A patent/HK89791A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NL8502872A (nl) | 1987-05-18 |
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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