DE3917157A1 - Umlaufende trommelanordnung - Google Patents

Umlaufende trommelanordnung

Info

Publication number
DE3917157A1
DE3917157A1 DE3917157A DE3917157A DE3917157A1 DE 3917157 A1 DE3917157 A1 DE 3917157A1 DE 3917157 A DE3917157 A DE 3917157A DE 3917157 A DE3917157 A DE 3917157A DE 3917157 A1 DE3917157 A1 DE 3917157A1
Authority
DE
Germany
Prior art keywords
yoke
coil
permanent magnet
materials
magnetic material
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.)
Granted
Application number
DE3917157A
Other languages
German (de)
English (en)
Other versions
DE3917157C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Naoki Kato
Toshiro Tsukahara
Satoshi Yanaura
Kousuke Haraga
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE3917157A1 publication Critical patent/DE3917157A1/de
Application granted granted Critical
Publication of DE3917157C2 publication Critical patent/DE3917157C2/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H01F7/066—Electromagnets with movable winding
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
DE3917157A 1988-05-26 1989-05-26 Umlaufende trommelanordnung Granted DE3917157A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63130570A JP2531241B2 (ja) 1988-05-26 1988-05-26 回転ドラム装置

Publications (2)

Publication Number Publication Date
DE3917157A1 true DE3917157A1 (de) 1989-11-30
DE3917157C2 DE3917157C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-08-19

Family

ID=15037401

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3917157A Granted DE3917157A1 (de) 1988-05-26 1989-05-26 Umlaufende trommelanordnung

Country Status (4)

Country Link
US (1) US4985794A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JP2531241B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3917157A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2219429B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5223992A (en) * 1989-11-10 1993-06-29 Mitsubishi Denki Kabushiki Kaisha Rotary magnetic head device in magnetic recording and reproducing apparatus
EP0477988B1 (en) * 1990-09-28 1996-12-04 Matsushita Electric Industrial Co., Ltd. Rotary head for use in a magnetic recording and reproducing apparatus
DE69123419T2 (de) * 1990-09-28 1997-04-03 Matsushita Electric Ind Co Ltd Aufzeichnungsgerät und Wiedergabegerät mit drehbaren Magnetköpfen
US5365390A (en) * 1991-09-10 1994-11-15 Canon Kabushiki Kaisha Magnetic head actuator with improved support
JP2717494B2 (ja) * 1992-07-17 1998-02-18 三菱電機株式会社 回転磁気ヘッド装置
JP3046729B2 (ja) * 1994-11-16 2000-05-29 シャープ株式会社 回転ヘッド型磁気記録再生装置
US6442004B1 (en) * 2000-09-27 2002-08-27 Imation Corp. Magnetic head linear actuator assembly for a magnetic data storage drive

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3722927A1 (de) * 1986-07-16 1988-01-21 Mitsubishi Electric Corp Kopftrommelanordnung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6125071Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1978-03-03 1986-07-28
US4337492A (en) * 1980-04-08 1982-06-29 Minnesota Mining And Manufacturing Company Head positioning transducer for helical scan video reproducer
JPS56165927A (en) * 1980-05-24 1981-12-19 Sony Corp Vibration imparting device
JP2620084B2 (ja) * 1987-07-02 1997-06-11 三菱電機株式会社 Ｖｔｒのビデオヘツド駆動装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3722927A1 (de) * 1986-07-16 1988-01-21 Mitsubishi Electric Corp Kopftrommelanordnung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GREIF, H.: Schäume, Gieß- und Klebstoffe Vogel Verlag, Würzburg, 1986, S. 64-69, 108-115 *

Also Published As

Publication number Publication date
GB2219429A (en) 1989-12-06
DE3917157C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-08-19
US4985794A (en) 1991-01-15
JP2531241B2 (ja) 1996-09-04
JPH01298517A (ja) 1989-12-01
GB2219429B (en) 1993-01-13
GB8912217D0 (en) 1989-07-12

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee