JPS55142452A - Tape tension controlling unit for magnetic recording and reproducing unit - Google Patents

Tape tension controlling unit for magnetic recording and reproducing unit

Info

Publication number
JPS55142452A
JPS55142452A JP4880379A JP4880379A JPS55142452A JP S55142452 A JPS55142452 A JP S55142452A JP 4880379 A JP4880379 A JP 4880379A JP 4880379 A JP4880379 A JP 4880379A JP S55142452 A JPS55142452 A JP S55142452A
Authority
JP
Japan
Prior art keywords
tape tension
reel motor
unit
magnetic recording
reel
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.)
Granted
Application number
JP4880379A
Other languages
Japanese (ja)
Other versions
JPS6220619B2 (en
Inventor
Hideji Iwasaki
Hiroto Nakazono
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 JP4880379A priority Critical patent/JPS55142452A/en
Publication of JPS55142452A publication Critical patent/JPS55142452A/en
Publication of JPS6220619B2 publication Critical patent/JPS6220619B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To increase the tension control accuracy, by removing the tape tension due to reel drive motor.
CONSTITUTION: Between the input terminal and ground of the reel motor drive circuit 3, the transistor 6 and the resistance 5 to subtract a given amount of torque corresponding to the mechanical loss of the reel motor 4 from the output of the torque reference voltage generating circuit 1 are connected in series. Thus, after the output of the torque reference voltage generating circuit 1 is adjusted with the variable resistor 2, it is given to the reel motor drive circuit and when the reel motor 4 is turned, the tape tension due to mechanical friction torque specific to the reel motor 4 is eliminated to enable tape tension control with good accuracy.
COPYRIGHT: (C)1980,JPO&Japio
JP4880379A 1979-04-19 1979-04-19 Tape tension controlling unit for magnetic recording and reproducing unit Granted JPS55142452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4880379A JPS55142452A (en) 1979-04-19 1979-04-19 Tape tension controlling unit for magnetic recording and reproducing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4880379A JPS55142452A (en) 1979-04-19 1979-04-19 Tape tension controlling unit for magnetic recording and reproducing unit

Publications (2)

Publication Number Publication Date
JPS55142452A true JPS55142452A (en) 1980-11-07
JPS6220619B2 JPS6220619B2 (en) 1987-05-08

Family

ID=12813364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4880379A Granted JPS55142452A (en) 1979-04-19 1979-04-19 Tape tension controlling unit for magnetic recording and reproducing unit

Country Status (1)

Country Link
JP (1) JPS55142452A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024088405A1 (en) * 2022-10-28 2024-05-02 中色科技股份有限公司 Coiling machine structure capable of accurately controlling reel torque and reel torque control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024088405A1 (en) * 2022-10-28 2024-05-02 中色科技股份有限公司 Coiling machine structure capable of accurately controlling reel torque and reel torque control method

Also Published As

Publication number Publication date
JPS6220619B2 (en) 1987-05-08

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