JPS54148517A - Constant speed revolution extractor - Google Patents

Constant speed revolution extractor

Info

Publication number
JPS54148517A
JPS54148517A JP5741078A JP5741078A JPS54148517A JP S54148517 A JPS54148517 A JP S54148517A JP 5741078 A JP5741078 A JP 5741078A JP 5741078 A JP5741078 A JP 5741078A JP S54148517 A JPS54148517 A JP S54148517A
Authority
JP
Japan
Prior art keywords
rotators
constant speed
rotator
reels
revolution
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
JP5741078A
Other languages
Japanese (ja)
Inventor
Takeshi Maruyama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5741078A priority Critical patent/JPS54148517A/en
Publication of JPS54148517A publication Critical patent/JPS54148517A/en
Pending legal-status Critical Current

Links

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

PURPOSE: To extract constant speed revolutions well without the effect of revolution fluctuations of reels by extracting the revolutions of the faster one of another two sets of rotators with the slower one of two rotators with respect to a device used for counters or the like of tape recorders.
CONSTITUTION: Turning of rotators 13 and 15, 19 and 17 cooperating with reels 11, 12 is transmitted to rotators 21, 22 through engagement of the ratchet teeth of these rotators with one of two sets of ratchets provided to the rotators 21, 22, then the rotators 21, 22 cooperate with the slower rotators of either of the rotators 13 and 15 or 19 and 17. Similarly, the rotator 23 revolves cooperatively with the faster rotator of either of the rotator 21 or 22, thus the rotator 23 turns at an approximately constant speed irrespective of the revolution fluctuations of reels 11, 12. Hence, if the revolution quantity changing with the time by the constant speed thus detected is utilized, the good tape length measurement or the like of less errors despite the fluctuations in tape speed through constant speed feeding, fast feeding, etc. of the tape may be accomplished irrespective of the revolution fluctuations of the reels.
COPYRIGHT: (C)1979,JPO&Japio
JP5741078A 1978-05-15 1978-05-15 Constant speed revolution extractor Pending JPS54148517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5741078A JPS54148517A (en) 1978-05-15 1978-05-15 Constant speed revolution extractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5741078A JPS54148517A (en) 1978-05-15 1978-05-15 Constant speed revolution extractor

Publications (1)

Publication Number Publication Date
JPS54148517A true JPS54148517A (en) 1979-11-20

Family

ID=13054866

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5741078A Pending JPS54148517A (en) 1978-05-15 1978-05-15 Constant speed revolution extractor

Country Status (1)

Country Link
JP (1) JPS54148517A (en)

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