JPS5778622A - Rotary magnetic head device - Google Patents

Rotary magnetic head device

Info

Publication number
JPS5778622A
JPS5778622A JP55153745A JP15374580A JPS5778622A JP S5778622 A JPS5778622 A JP S5778622A JP 55153745 A JP55153745 A JP 55153745A JP 15374580 A JP15374580 A JP 15374580A JP S5778622 A JPS5778622 A JP S5778622A
Authority
JP
Japan
Prior art keywords
rotary
cylinder
fixed
rotary magnetic
axial direction
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
JP55153745A
Other languages
Japanese (ja)
Other versions
JPS6338768B2 (en
Inventor
Akimichi Terada
Saburo Kazama
Kotaro Kawamura
Nobuo Azuma
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55153745A priority Critical patent/JPS5778622A/en
Publication of JPS5778622A publication Critical patent/JPS5778622A/en
Publication of JPS6338768B2 publication Critical patent/JPS6338768B2/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

Landscapes

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

Abstract

PURPOSE:To omit a conventional slip ring and brush, by attracting through an electromagnetic coil a ring consisting of a high magnetic permeability material, which has been installed to an elastic material rotating in one body with a rotary cylinder, and displacing a rotary magnetic head in the axial direction. CONSTITUTION:This device scans a magnetic tape by driving a rotation of rotary magnetic heads 1, 2 fixed to a rotary cylinder 7, and is provided with elastic materials 3, 4 for fixing the rotary magnetic heads 1, 2 to the rotary cylinder 7, elastic materials 11, 15 by which rings 10, 14 consisting of a high magnetic permeability material have been fixed and have been made to tightly adhere to the cylinder 7, coupling materials 25, 26 which have fixed both the elastic materials so as to be displaced in one body in the axial direction of the cylinder 7, and electromagnetic coils 8, 12 which have been installed to the fixed side and have been placed on the rings 10, 14 so as to be opposed in the axial direction. In order to take the tracking of a video track, it is necessary to displace the rotary magnetic head in both the upper and lower directions, and it is attained by making a suitable bias DC current flow into the electromagnetic coil so that attracting force operates on the ring.
JP55153745A 1980-11-04 1980-11-04 Rotary magnetic head device Granted JPS5778622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55153745A JPS5778622A (en) 1980-11-04 1980-11-04 Rotary magnetic head device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55153745A JPS5778622A (en) 1980-11-04 1980-11-04 Rotary magnetic head device

Publications (2)

Publication Number Publication Date
JPS5778622A true JPS5778622A (en) 1982-05-17
JPS6338768B2 JPS6338768B2 (en) 1988-08-02

Family

ID=15569179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55153745A Granted JPS5778622A (en) 1980-11-04 1980-11-04 Rotary magnetic head device

Country Status (1)

Country Link
JP (1) JPS5778622A (en)

Also Published As

Publication number Publication date
JPS6338768B2 (en) 1988-08-02

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