JPS5677946A - Magnetic tape driving device - Google Patents
Magnetic tape driving deviceInfo
- Publication number
- JPS5677946A JPS5677946A JP15385379A JP15385379A JPS5677946A JP S5677946 A JPS5677946 A JP S5677946A JP 15385379 A JP15385379 A JP 15385379A JP 15385379 A JP15385379 A JP 15385379A JP S5677946 A JPS5677946 A JP S5677946A
- Authority
- JP
- Japan
- Prior art keywords
- tape
- circuit
- slack
- pulse
- turned
- 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
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
PURPOSE: To always keep a proper tape position with increase and decrease of the degree of tape slack, by detecting the slack of the tape and controlling the mobile reel toward the rotating direction via a control means.
CONSTITUTION: The detection signal sent from the tape slack detecting part 40 is shaped through the Schmitt trigger circuit 41 to be turned into the control signals of the gate circuits 42, 43. In the case of a large degree of tape slack, the pulse supplied from the pulse generating circuit 44 is supplied to the pulse driving circuit 47 through the gate circuit 42 to turn the pulse motor 49 in the direction to reduce the slack of the tape. When a proper slack of the tape is secured, the slack signal is turned off. Thus the output of the circuit 42 is also turned off to stop the rotation of the motor. Then the retrigger one-shot circuit 46 starts its operation, and the counter 45 starts after a fixed time to divide the pulse sent from the circuit 44 to then supply it to the gate circuit 43. The output of the circuit 43 turns gradually the pulse motor 49 through the driving circuit 48 in the direction to increase the tape slack. As a result, the tape can always be held in the optimum position.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15385379A JPS5677946A (en) | 1979-11-28 | 1979-11-28 | Magnetic tape driving device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15385379A JPS5677946A (en) | 1979-11-28 | 1979-11-28 | Magnetic tape driving device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5677946A true JPS5677946A (en) | 1981-06-26 |
Family
ID=15571526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15385379A Pending JPS5677946A (en) | 1979-11-28 | 1979-11-28 | Magnetic tape driving device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5677946A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5178202A (en) * | 1974-12-28 | 1976-07-07 | Tokyo Shibaura Electric Co | ENDORESUTEE PUKUDOSOCHI |
JPS5481808A (en) * | 1977-12-13 | 1979-06-29 | Toshiba Corp | Endless tape running device |
-
1979
- 1979-11-28 JP JP15385379A patent/JPS5677946A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5178202A (en) * | 1974-12-28 | 1976-07-07 | Tokyo Shibaura Electric Co | ENDORESUTEE PUKUDOSOCHI |
JPS5481808A (en) * | 1977-12-13 | 1979-06-29 | Toshiba Corp | Endless tape running device |
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