JPS55153157A - Tape tension controller - Google Patents

Tape tension controller

Info

Publication number
JPS55153157A
JPS55153157A JP5880079A JP5880079A JPS55153157A JP S55153157 A JPS55153157 A JP S55153157A JP 5880079 A JP5880079 A JP 5880079A JP 5880079 A JP5880079 A JP 5880079A JP S55153157 A JPS55153157 A JP S55153157A
Authority
JP
Japan
Prior art keywords
circuit
motor
tape
signal
pulse
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
JP5880079A
Other languages
Japanese (ja)
Inventor
Satoru Ohira
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5880079A priority Critical patent/JPS55153157A/en
Publication of JPS55153157A publication Critical patent/JPS55153157A/en
Pending legal-status Critical Current

Links

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Abstract

PURPOSE: To make it possible to hold tape tension constant at any time by changing the torque of a take-up side motor corresponding to a tape speed and the turning speed of the take-up side motor.
CONSTITUTION: When tape 9 is driven at a certain speed, a signal appears at turning detector 4 and triggers monostable multivibrator 11 via amplifier 10 to generate a pulse. This pulse is differentiated 12 and applied to constant-current circuit 13. As a result, capacitor 20 of saw-tooth wave generating circuit 19 is charged by the output of circuit 13. On the other hand, the rotataional frequency of motor 7 varies with the wind diameter of tape 9, and consequently turning detector 8 generates a signal. This signal is differentiated by differentiating circuit 18 and its positive differential pulse discharges capacitor 20. The saw-tooth wave output of circuit 19 is peak-held by peak holding circuit 22 to obtain a DC voltage, which is applied to motor driving circuit 25 to drive motor 7. At this time, the torque of motor 7 is varied according to a change in the intervals of pulses output from circuit 18.
COPYRIGHT: (C)1980,JPO&Japio
JP5880079A 1979-05-14 1979-05-14 Tape tension controller Pending JPS55153157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5880079A JPS55153157A (en) 1979-05-14 1979-05-14 Tape tension controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5880079A JPS55153157A (en) 1979-05-14 1979-05-14 Tape tension controller

Publications (1)

Publication Number Publication Date
JPS55153157A true JPS55153157A (en) 1980-11-28

Family

ID=13094657

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5880079A Pending JPS55153157A (en) 1979-05-14 1979-05-14 Tape tension controller

Country Status (1)

Country Link
JP (1) JPS55153157A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863641A (en) * 1981-10-08 1983-04-15 Copal Co Ltd Intermittent winder for belt or the like
JPS59113549A (en) * 1982-12-20 1984-06-30 Matsushita Electric Ind Co Ltd Tape driving controller
JPS63237246A (en) * 1987-03-26 1988-10-03 Sony Corp Reel driving circuit
JPH04178949A (en) * 1990-11-14 1992-06-25 Matsushita Electric Ind Co Ltd Tape driver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262004A (en) * 1975-11-14 1977-05-23 Ibm Controller for feeding long material from reel to reel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262004A (en) * 1975-11-14 1977-05-23 Ibm Controller for feeding long material from reel to reel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863641A (en) * 1981-10-08 1983-04-15 Copal Co Ltd Intermittent winder for belt or the like
JPS59113549A (en) * 1982-12-20 1984-06-30 Matsushita Electric Ind Co Ltd Tape driving controller
JPS63237246A (en) * 1987-03-26 1988-10-03 Sony Corp Reel driving circuit
JPH04178949A (en) * 1990-11-14 1992-06-25 Matsushita Electric Ind Co Ltd Tape driver

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