JPS643844A - Magnetic recording and reproducing device - Google Patents
Magnetic recording and reproducing deviceInfo
- Publication number
- JPS643844A JPS643844A JP62157022A JP15702287A JPS643844A JP S643844 A JPS643844 A JP S643844A JP 62157022 A JP62157022 A JP 62157022A JP 15702287 A JP15702287 A JP 15702287A JP S643844 A JPS643844 A JP S643844A
- Authority
- JP
- Japan
- Prior art keywords
- pressing force
- tape
- detection head
- tape tension
- difference
- 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
Abstract
PURPOSE:To prevent tape tension from varying by providing a detection head which detects tape pressing force to a rotary cylinder and adjusting the rotary torque of a reel turntable so that the tape pressing force is specific reference pressing force. CONSTITUTION:The arcuate part of a base 19 is strained with the pressing force generated in the detection head 2 of a tape pressing force detecting means 17 provided to the rotary cylinder 7, a pressing force signal from a strain gauge 21 is inputted to a system control circuit 23 through a detecting circuit 22, and the difference from the preset reference pressing force is calculated. Then a signal based upon the pressing force difference is outputted to a driving circuit 25 for the reel motor 24 of the reel turntable 3 and its driving force is adjusted to control the tape tension. Further, the detection head 20 and a magnetic head are formed of the same materials in the same tip surface shape, so the invariably correct tape tension is detected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157022A JPS643844A (en) | 1987-06-24 | 1987-06-24 | Magnetic recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157022A JPS643844A (en) | 1987-06-24 | 1987-06-24 | Magnetic recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS643844A true JPS643844A (en) | 1989-01-09 |
Family
ID=15640472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62157022A Pending JPS643844A (en) | 1987-06-24 | 1987-06-24 | Magnetic recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS643844A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58196649A (en) * | 1982-05-12 | 1983-11-16 | Canon Inc | Tension controller of recording medium |
JPS60211652A (en) * | 1984-04-05 | 1985-10-24 | Matsushita Electric Ind Co Ltd | Tension controlling device |
JPS60211653A (en) * | 1984-04-05 | 1985-10-24 | Mitsubishi Electric Corp | Magnetic recording and reproducing device |
-
1987
- 1987-06-24 JP JP62157022A patent/JPS643844A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58196649A (en) * | 1982-05-12 | 1983-11-16 | Canon Inc | Tension controller of recording medium |
JPS60211652A (en) * | 1984-04-05 | 1985-10-24 | Matsushita Electric Ind Co Ltd | Tension controlling device |
JPS60211653A (en) * | 1984-04-05 | 1985-10-24 | Mitsubishi Electric Corp | Magnetic recording and reproducing device |
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