JPS5616962A - Disc turning unit - Google Patents

Disc turning unit

Info

Publication number
JPS5616962A
JPS5616962A JP9079479A JP9079479A JPS5616962A JP S5616962 A JPS5616962 A JP S5616962A JP 9079479 A JP9079479 A JP 9079479A JP 9079479 A JP9079479 A JP 9079479A JP S5616962 A JPS5616962 A JP S5616962A
Authority
JP
Japan
Prior art keywords
disc
recording
drive mechanism
reproducing
head
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
JP9079479A
Other languages
Japanese (ja)
Inventor
Kunihiko Nakagawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9079479A priority Critical patent/JPS5616962A/en
Publication of JPS5616962A publication Critical patent/JPS5616962A/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
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/24—Arrangements for providing constant relative speed between record carrier and head

Landscapes

  • Moving Of Heads (AREA)

Abstract

PURPOSE:To keep constant the relative speed toward tangential direction of the recording and reproducing head to the disc, independently of the position of the head on the disc, by controlling the rotating speed of disc with a given mechanical stepless speed change mechanism, in the disc turning unit. CONSTITUTION:The transparent disc 2 such as glass plate providing the recording medium 1 is fixed to the rotating shaft 4 having the flange 3. The support member 7 opposing to the disc 2 and supported to the guide bar 6 is fitted with the recording and reproducing means 8 like the recording and reproducing head and the drive mechanism 9. The drive mechanism 9 is rotated at the same time as the drive motor 9a and contacts the surface of the disc 2, and provides the drive wheel 9b turning the disc (2) with the friction force. The support member 7 is provided with the screw hole 10, the feeding screw rod 11 delivers the revolution of motor and carries the recordng and reproducing means 8 and the drive mechanism 9 to radial direction of the disc 2 at the same tme. Thus, the relative speed toward tangential direction of the recording and reproducing head 8a to the disc 2 can be kept constant.
JP9079479A 1979-07-16 1979-07-16 Disc turning unit Pending JPS5616962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9079479A JPS5616962A (en) 1979-07-16 1979-07-16 Disc turning unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9079479A JPS5616962A (en) 1979-07-16 1979-07-16 Disc turning unit

Publications (1)

Publication Number Publication Date
JPS5616962A true JPS5616962A (en) 1981-02-18

Family

ID=14008483

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9079479A Pending JPS5616962A (en) 1979-07-16 1979-07-16 Disc turning unit

Country Status (1)

Country Link
JP (1) JPS5616962A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152662U (en) * 1981-03-20 1982-09-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152662U (en) * 1981-03-20 1982-09-25

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