JPS5637846A - Cassette and cassette reel driving device - Google Patents

Cassette and cassette reel driving device

Info

Publication number
JPS5637846A
JPS5637846A JP11147179A JP11147179A JPS5637846A JP S5637846 A JPS5637846 A JP S5637846A JP 11147179 A JP11147179 A JP 11147179A JP 11147179 A JP11147179 A JP 11147179A JP S5637846 A JPS5637846 A JP S5637846A
Authority
JP
Japan
Prior art keywords
reel
magnet
cassette
turntable
conductive material
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
JP11147179A
Other languages
Japanese (ja)
Inventor
Shinichi Harazono
Toshinori Morikawa
Kimimasa Shibata
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 JP11147179A priority Critical patent/JPS5637846A/en
Publication of JPS5637846A publication Critical patent/JPS5637846A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To facilitate control over reel driving torque and back tension with simple structure by providing a magnetic substance and conductive material on one end surface of a reel and by further providing a reel turntable equipped with a magnet opposing to the end surface.
CONSTITUTION: On one side surface of reel 30, magnetic substance 35 and conductive material 34 are provided with conductive material 34 out and reel turntable 23 turned by motor 44 and equipped with magnet 27 is provided opposing to the end surface. As reel turntable 23 is turned by motor 44, ring-shaped magnet 27 equipped to reel turntable 23 also rotates and reel 30 also turns in the same direction. In this case, the number of rotations of magnet 27 is not equal to that of reel 30 and a magnetic slide is relatively caused, so that as the relative speed increases, the transfer torque of reel 30 increases. For this purpose, a voltage applied to motor 44 is adjusted to exercise easily control over reel driving torque and back tension.
COPYRIGHT: (C)1981,JPO&Japio
JP11147179A 1979-08-30 1979-08-30 Cassette and cassette reel driving device Pending JPS5637846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11147179A JPS5637846A (en) 1979-08-30 1979-08-30 Cassette and cassette reel driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11147179A JPS5637846A (en) 1979-08-30 1979-08-30 Cassette and cassette reel driving device

Publications (1)

Publication Number Publication Date
JPS5637846A true JPS5637846A (en) 1981-04-11

Family

ID=14562078

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11147179A Pending JPS5637846A (en) 1979-08-30 1979-08-30 Cassette and cassette reel driving device

Country Status (1)

Country Link
JP (1) JPS5637846A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5326993A (en) * 1976-08-24 1978-03-13 Kanegafuchi Chemical Ind Plastic magnet and method of manufactre thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5326993A (en) * 1976-08-24 1978-03-13 Kanegafuchi Chemical Ind Plastic magnet and method of manufactre thereof
JPS6035806B2 (en) * 1976-08-24 1985-08-16 鐘淵化学工業株式会社 Plastic magnet and its manufacturing method

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