JPS5538626A - Rotating magnetic head unit - Google Patents

Rotating magnetic head unit

Info

Publication number
JPS5538626A
JPS5538626A JP10942078A JP10942078A JPS5538626A JP S5538626 A JPS5538626 A JP S5538626A JP 10942078 A JP10942078 A JP 10942078A JP 10942078 A JP10942078 A JP 10942078A JP S5538626 A JPS5538626 A JP S5538626A
Authority
JP
Japan
Prior art keywords
piezoelectric element
rotating magnetic
magnetic head
head unit
height
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
JP10942078A
Other languages
Japanese (ja)
Other versions
JPS628845B2 (en
Inventor
Kiichiro Yamada
Mineo Mino
Yukihiko Ito
Takenobu Isaka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10942078A priority Critical patent/JPS5538626A/en
Publication of JPS5538626A publication Critical patent/JPS5538626A/en
Publication of JPS628845B2 publication Critical patent/JPS628845B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G11B5/592—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 using bimorph elements supporting the heads

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

PURPOSE:To prevent a track from shifting in position by increasing the height-directional displacement of a rotating magnetic head by elongating the length from the fixed part of a piezoelectric element as much as possible. CONSTITUTION:Piezoelectric element 52 stuck in a ring shape is fixed to rotating disc 28 at a position forming an angle of approximate 90 deg. with two magnetic heads 38 and 40 bonded at an angle of 180 deg.. Therefore, the effective length of piezoelectric element 52 is nearly a half as long as the outer diameter of a rotating magnetic head unit and a maximum size which can be obtained in the structure where two magnetic heads 38 and 40 are bonded to piezoelectric element 52 stuck in the ring shape. The height-directional displacement of rotating magnetic heads 38 and 40 is in proportion to the square of the length from the fixed part of piezoelectric element 52 and, therefore, the height-directional displacement of heads 38 and 40 can be increased, thereby preventing a track from shifting in position.
JP10942078A 1978-09-05 1978-09-05 Rotating magnetic head unit Granted JPS5538626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10942078A JPS5538626A (en) 1978-09-05 1978-09-05 Rotating magnetic head unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10942078A JPS5538626A (en) 1978-09-05 1978-09-05 Rotating magnetic head unit

Publications (2)

Publication Number Publication Date
JPS5538626A true JPS5538626A (en) 1980-03-18
JPS628845B2 JPS628845B2 (en) 1987-02-25

Family

ID=14509783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10942078A Granted JPS5538626A (en) 1978-09-05 1978-09-05 Rotating magnetic head unit

Country Status (1)

Country Link
JP (1) JPS5538626A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119622A (en) * 1983-11-30 1985-06-27 Mitsubishi Electric Corp Magnetic recording and reproducing device
JPH03135760A (en) * 1989-10-20 1991-06-10 Hitachi Cable Ltd Production of quartz capillary column for gas chromatography

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01171740U (en) * 1988-05-18 1989-12-05

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5522285A (en) * 1978-08-03 1980-02-16 Matsushita Electric Ind Co Ltd Magnetic head device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5522285A (en) * 1978-08-03 1980-02-16 Matsushita Electric Ind Co Ltd Magnetic head device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119622A (en) * 1983-11-30 1985-06-27 Mitsubishi Electric Corp Magnetic recording and reproducing device
JPH0150009B2 (en) * 1983-11-30 1989-10-26 Mitsubishi Electric Corp
JPH03135760A (en) * 1989-10-20 1991-06-10 Hitachi Cable Ltd Production of quartz capillary column for gas chromatography

Also Published As

Publication number Publication date
JPS628845B2 (en) 1987-02-25

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