JPS5567938A - Rotary magnetic head device - Google Patents

Rotary magnetic head device

Info

Publication number
JPS5567938A
JPS5567938A JP14131178A JP14131178A JPS5567938A JP S5567938 A JPS5567938 A JP S5567938A JP 14131178 A JP14131178 A JP 14131178A JP 14131178 A JP14131178 A JP 14131178A JP S5567938 A JPS5567938 A JP S5567938A
Authority
JP
Japan
Prior art keywords
piezoelectric elements
magnetic heads
electric energy
cylinder
stuck
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.)
Pending
Application number
JP14131178A
Other languages
Japanese (ja)
Inventor
Kiichiro Yamada
Mineo Mino
Yukihiko Ise
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 JP14131178A priority Critical patent/JPS5567938A/en
Publication of JPS5567938A publication Critical patent/JPS5567938A/en
Pending 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 obtain invariable-excellent reproduced signals by specifying the shape of stuck piezoelectric elements. CONSTITUTION:Of stuck piezoelectric elements 34 and 36, at least a part where magnetic heads 38 and 40 are arranged is shaped in an arc extending along the outer circumference of a tape guide cylinder composed of lower cylinder 6, upper cylinder 10 and rotaty cylinder 42 and then magnetic heads 38 and 40 are mounted on its outer circumferences 60 and 62 with gaps in a normal-line direction. As a result, expansion directions of piezoelectric elements 34 and 36 agree nearly with rotation tracks of magnetic heads 38 and 40; even when piezoelectric elements 34 and 36 would be inflected by applying electric energy, a slant of the same angle as that of deflection is caused in a head longish direction and no angle slant is caused in a head width direction with the electric energy released. Consequently, even if the electric energy is applied to stuck piezoelectric elements 34 and 36 to correct a shift in track, contact states between magnetic tape 2 and magnetic heads 38 and 40 never change and excellent reproduced signals can be obtained.
JP14131178A 1978-11-15 1978-11-15 Rotary magnetic head device Pending JPS5567938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14131178A JPS5567938A (en) 1978-11-15 1978-11-15 Rotary magnetic head device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14131178A JPS5567938A (en) 1978-11-15 1978-11-15 Rotary magnetic head device

Publications (1)

Publication Number Publication Date
JPS5567938A true JPS5567938A (en) 1980-05-22

Family

ID=15288936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14131178A Pending JPS5567938A (en) 1978-11-15 1978-11-15 Rotary magnetic head device

Country Status (1)

Country Link
JP (1) JPS5567938A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672489A (en) * 1983-06-17 1987-06-09 Pioneer Electronic Corporation Head rotation apparatus for video tape recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672489A (en) * 1983-06-17 1987-06-09 Pioneer Electronic Corporation Head rotation apparatus for video tape recorder

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