JPS5558861A - Calculator for amount of tape - Google Patents

Calculator for amount of tape

Info

Publication number
JPS5558861A
JPS5558861A JP12999478A JP12999478A JPS5558861A JP S5558861 A JPS5558861 A JP S5558861A JP 12999478 A JP12999478 A JP 12999478A JP 12999478 A JP12999478 A JP 12999478A JP S5558861 A JPS5558861 A JP S5558861A
Authority
JP
Japan
Prior art keywords
tape
reel
amount
length
revolutions
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
JP12999478A
Other languages
Japanese (ja)
Other versions
JPS5948470B2 (en
Inventor
Masasuke Tooyama
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon 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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP12999478A priority Critical patent/JPS5948470B2/en
Publication of JPS5558861A publication Critical patent/JPS5558861A/en
Publication of JPS5948470B2 publication Critical patent/JPS5948470B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE: To display the tape length after using and to enable to display the residual amount of tape by time, by detecting the number of revolutions of winding side reel and performing operation with a given condition.
CONSTITUTION: The tape T from the supply side reel 1, ro in radius, is wound on the winding reel 2, ro in radius, through the magnetic head 3. In this case, taking that the total length of tape as L, thickness of tape as t, amount of run of tape when the reel 2 is turned by n as l, and the tape speed as S, the relation of l= πtn2+(2πro+πt)n is established, and the residual time of tape is (L-l)/S (second). Accordingly, the number of revolutions n of the reel 2 is detected 20 and the operation 26 is made by using the constant (t, L, ro, S) set 30 to the memory with the keyboard, then the tape length l after using can be obtained by decimal number and this can be displayed 27.
COPYRIGHT: (C)1980,JPO&Japio
JP12999478A 1978-10-24 1978-10-24 Tape amount calculation device Expired JPS5948470B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12999478A JPS5948470B2 (en) 1978-10-24 1978-10-24 Tape amount calculation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12999478A JPS5948470B2 (en) 1978-10-24 1978-10-24 Tape amount calculation device

Publications (2)

Publication Number Publication Date
JPS5558861A true JPS5558861A (en) 1980-05-01
JPS5948470B2 JPS5948470B2 (en) 1984-11-27

Family

ID=15023514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12999478A Expired JPS5948470B2 (en) 1978-10-24 1978-10-24 Tape amount calculation device

Country Status (1)

Country Link
JP (1) JPS5948470B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57121549A (en) * 1981-01-21 1982-07-29 Fukuoka Seishi Kk Method and device to detect remained length of raw paper winding for corrugated cardboard
JPS57203643A (en) * 1981-06-06 1982-12-14 Ricoh Co Ltd Residual amount detector of rolled recording paper
JPS5864684A (en) * 1981-10-13 1983-04-18 Nagaoka:Kk Display device for remaining amount of tape
US5018040A (en) * 1987-03-20 1991-05-21 Mitsubishi Denki Kabushiki Kaisha Tape time display device for displaying a tape remainder time

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57121549A (en) * 1981-01-21 1982-07-29 Fukuoka Seishi Kk Method and device to detect remained length of raw paper winding for corrugated cardboard
JPS57203643A (en) * 1981-06-06 1982-12-14 Ricoh Co Ltd Residual amount detector of rolled recording paper
JPS5864684A (en) * 1981-10-13 1983-04-18 Nagaoka:Kk Display device for remaining amount of tape
US5018040A (en) * 1987-03-20 1991-05-21 Mitsubishi Denki Kabushiki Kaisha Tape time display device for displaying a tape remainder time
WO1992005555A1 (en) * 1987-03-20 1992-04-02 Yoshihiro Nishida Tape running time indicator

Also Published As

Publication number Publication date
JPS5948470B2 (en) 1984-11-27

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