JPS5573922A - Rotary magnetic head unit - Google Patents

Rotary magnetic head unit

Info

Publication number
JPS5573922A
JPS5573922A JP14692878A JP14692878A JPS5573922A JP S5573922 A JPS5573922 A JP S5573922A JP 14692878 A JP14692878 A JP 14692878A JP 14692878 A JP14692878 A JP 14692878A JP S5573922 A JPS5573922 A JP S5573922A
Authority
JP
Japan
Prior art keywords
vibrator
magnetic heads
signal
fitted
rotary cylinder
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
JP14692878A
Other languages
Japanese (ja)
Other versions
JPS5853407B2 (en
Inventor
Tetsuji Fukada
Yukihiko Ise
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 JP14692878A priority Critical patent/JPS5853407B2/en
Priority to US06/092,375 priority patent/US4295172A/en
Publication of JPS5573922A publication Critical patent/JPS5573922A/en
Publication of JPS5853407B2 publication Critical patent/JPS5853407B2/en
Expired 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

Abstract

PURPOSE:To simplify fabrication and adjustments, and also to improve fabrication precision by providing ring piezoelectric vibrators, by fixing them to a rotary cylinder at fixed diameter positions, and by fixing magnetic heads on right and left sides of a fixed diameter. CONSTITUTION:Two ring piezoelectric vibrators 1a and 1b differing in inner diameter are stuck each other being given polarization directions as shown by arrows. An arc disk cut off at its center is used to inverse right and left polarization directions. Vibrator 1 is fitted to rotary cylinder 5 via pedestal 6 by using fitting jigs 4 and 4'. Jigs 4 and 4' are positioned in contact with there polarization in direction. When a V signal is supplied by shorting the external electrode of vibrator 1, flexes in a S shape, so that magnetic heads 2 and 2' fitted to vibrator 1 will move as well. Changing a direct-current signal in polarity reverse the flection. For the purpose, the value of a signal equivalent to a shift in track of magnetic heads is inputted to a piezoelectric vibrator driver circuit, so that an extremely-excellent reproduced signal can be obtained.
JP14692878A 1978-11-10 1978-11-27 Rotating magnetic head device Expired JPS5853407B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP14692878A JPS5853407B2 (en) 1978-11-27 1978-11-27 Rotating magnetic head device
US06/092,375 US4295172A (en) 1978-11-10 1979-11-08 Rotary magnetic head apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14692878A JPS5853407B2 (en) 1978-11-27 1978-11-27 Rotating magnetic head device

Publications (2)

Publication Number Publication Date
JPS5573922A true JPS5573922A (en) 1980-06-04
JPS5853407B2 JPS5853407B2 (en) 1983-11-29

Family

ID=15418734

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14692878A Expired JPS5853407B2 (en) 1978-11-10 1978-11-27 Rotating magnetic head device

Country Status (1)

Country Link
JP (1) JPS5853407B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114123A (en) * 1980-02-15 1981-09-08 Hitachi Ltd Magnetic head dispalcing device
JPS56120115U (en) * 1980-02-13 1981-09-12

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56120115U (en) * 1980-02-13 1981-09-12
JPS56114123A (en) * 1980-02-15 1981-09-08 Hitachi Ltd Magnetic head dispalcing device

Also Published As

Publication number Publication date
JPS5853407B2 (en) 1983-11-29

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