JPS5616962A - Disc turning unit - Google Patents
Disc turning unitInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57152662U (en) * | 1981-03-20 | 1982-09-25 |
-
1979
- 1979-07-16 JP JP9079479A patent/JPS5616962A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57152662U (en) * | 1981-03-20 | 1982-09-25 |
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