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JPS5616953A - Reel drive unit for tape recorder - Google Patents

Reel drive unit for tape recorder

Info

Publication number
JPS5616953A
JPS5616953A JP9157979A JP9157979A JPS5616953A JP S5616953 A JPS5616953 A JP S5616953A JP 9157979 A JP9157979 A JP 9157979A JP 9157979 A JP9157979 A JP 9157979A JP S5616953 A JPS5616953 A JP S5616953A
Authority
JP
Japan
Prior art keywords
reel turntable
motor
cogging
frequency
drive unit
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
JP9157979A
Other languages
Japanese (ja)
Other versions
JPS6147077B2 (en
Inventor
Nobuhiro Hirashima
Manabu Sawaki
Shinji Nakayama
Shinichi Kudo
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.)
Nidec Instruments Corp
Original Assignee
Sankyo Seiki Manufacturing 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 Sankyo Seiki Manufacturing Co Ltd filed Critical Sankyo Seiki Manufacturing Co Ltd
Priority to JP9157979A priority Critical patent/JPS5616953A/en
Publication of JPS5616953A publication Critical patent/JPS5616953A/en
Publication of JPS6147077B2 publication Critical patent/JPS6147077B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE: To increase the wow-flatter characteristics of the reel turntable, by setting the specified constant so that the resonant frequency of the cassette tape and the cogging frequency of the reel turntable can not be the same.
CONSTITUTION: The reel turntable drive motor 10 consists of the cored small sized commutator motor having the slot 13b. Taking the number of revolutions of the reel turntable 9 as NB, the reduction ratio of the motor 10 as α, and the number of poles as K, the cogging frequency FC generated at the reel turntable 9, is expressed as FC=NB.α.2K/60. Further, the cassette tape has various oscillation forms during running and the resonant point is present at 12W14Hz for the resonant frequency FT. By setting each constant so that FC≠FT, the wow-flatter characteristics can be increased even with the motor having cogging.
COPYRIGHT: (C)1981,JPO&Japio
JP9157979A 1979-07-20 1979-07-20 Reel drive unit for tape recorder Granted JPS5616953A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9157979A JPS5616953A (en) 1979-07-20 1979-07-20 Reel drive unit for tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9157979A JPS5616953A (en) 1979-07-20 1979-07-20 Reel drive unit for tape recorder

Publications (2)

Publication Number Publication Date
JPS5616953A true JPS5616953A (en) 1981-02-18
JPS6147077B2 JPS6147077B2 (en) 1986-10-17

Family

ID=14030443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9157979A Granted JPS5616953A (en) 1979-07-20 1979-07-20 Reel drive unit for tape recorder

Country Status (1)

Country Link
JP (1) JPS5616953A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6176223B2 (en) * 2014-11-04 2017-08-09 トヨタ自動車株式会社 Battery system

Also Published As

Publication number Publication date
JPS6147077B2 (en) 1986-10-17

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