JPS5522285A - Magnetic head device - Google Patents

Magnetic head device

Info

Publication number
JPS5522285A
JPS5522285A JP9533378A JP9533378A JPS5522285A JP S5522285 A JPS5522285 A JP S5522285A JP 9533378 A JP9533378 A JP 9533378A JP 9533378 A JP9533378 A JP 9533378A JP S5522285 A JPS5522285 A JP S5522285A
Authority
JP
Japan
Prior art keywords
magnetic head
bimorph
center part
piezoelectric bimorph
picture screen
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
JP9533378A
Other languages
Japanese (ja)
Other versions
JPS622365B2 (en
Inventor
Norihiko Miyawaki
Ryuhei Nakabe
Hironori Arima
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 JP9533378A priority Critical patent/JPS5522285A/en
Publication of JPS5522285A publication Critical patent/JPS5522285A/en
Publication of JPS622365B2 publication Critical patent/JPS622365B2/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 secure application of a deviation enough to obtain a high-quality reproduction picture screen to the magnetic head by attaching the magnetic head provided at the center part of the semicircular piezoelectric bimorph fixed at two points to the upper cylinder. CONSTITUTION:Fixing holes 22 are provided across semicircular piezoelectric bimorph 19 along with attachment of magnetic head 21 at the circular center part. Bimorph 19 is composed by bonding piezoelectric ceramic 11 onto both surfaces of conducting plastic plate electrode 20 made of bronze or the like and also providing electrode 10 on the other surface of ceramic 11. Two units of piezoelectric bimorph 19 of such composition are attached to upper cylinder 14. Attachment surface 23 is processed so that no contact may be given between surface 23 and bimorph 19 when 19 is deviated. As a result, the effective length of bimorph 19 can be reduced down to about half of cylinder 14's radius, thus securing a sufficient deviation to obtain a high-quality reproduction picture screen to magnetic head 21 in the variable velocity reproduction.
JP9533378A 1978-08-03 1978-08-03 Magnetic head device Granted JPS5522285A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9533378A JPS5522285A (en) 1978-08-03 1978-08-03 Magnetic head device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9533378A JPS5522285A (en) 1978-08-03 1978-08-03 Magnetic head device

Publications (2)

Publication Number Publication Date
JPS5522285A true JPS5522285A (en) 1980-02-16
JPS622365B2 JPS622365B2 (en) 1987-01-19

Family

ID=14134784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9533378A Granted JPS5522285A (en) 1978-08-03 1978-08-03 Magnetic head device

Country Status (1)

Country Link
JP (1) JPS5522285A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5538626A (en) * 1978-09-05 1980-03-18 Matsushita Electric Ind Co Ltd Rotating magnetic head unit
JPS5718019A (en) * 1980-07-04 1982-01-29 Matsushita Electric Ind Co Ltd Rotary magnetic head device
JPS57138029A (en) * 1981-02-18 1982-08-26 Nec Corp Skew correcting device for rotary head type magnetic tape recorder
JPS59138022U (en) * 1983-03-07 1984-09-14 シャープ株式会社 Rotating magnetic head device
JPH0747806A (en) * 1993-08-06 1995-02-21 Sumitomo Rubber Ind Ltd Pneumatic tire
US5725168A (en) * 1989-12-06 1998-03-10 Mitsubishi Denki Kabushiki Kaisha Magnetic recording and reproducing apparatus for controlling the tension of a magnetic tape

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497007A (en) * 1978-01-17 1979-07-31 Sony Corp Head supporting structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497007A (en) * 1978-01-17 1979-07-31 Sony Corp Head supporting structure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5538626A (en) * 1978-09-05 1980-03-18 Matsushita Electric Ind Co Ltd Rotating magnetic head unit
JPS628845B2 (en) * 1978-09-05 1987-02-25 Matsushita Electric Ind Co Ltd
JPS5718019A (en) * 1980-07-04 1982-01-29 Matsushita Electric Ind Co Ltd Rotary magnetic head device
JPS57138029A (en) * 1981-02-18 1982-08-26 Nec Corp Skew correcting device for rotary head type magnetic tape recorder
JPS59138022U (en) * 1983-03-07 1984-09-14 シャープ株式会社 Rotating magnetic head device
JPS6334096Y2 (en) * 1983-03-07 1988-09-09
US5725168A (en) * 1989-12-06 1998-03-10 Mitsubishi Denki Kabushiki Kaisha Magnetic recording and reproducing apparatus for controlling the tension of a magnetic tape
US5947402A (en) * 1989-12-06 1999-09-07 Mitsubishi Denki Kabushiki Kaisha Magnetic recording and reproducing apparatus for controlling the tension of a magnetic tape
JPH0747806A (en) * 1993-08-06 1995-02-21 Sumitomo Rubber Ind Ltd Pneumatic tire

Also Published As

Publication number Publication date
JPS622365B2 (en) 1987-01-19

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