JPS558644A - Magnetic tape device - Google Patents

Magnetic tape device

Info

Publication number
JPS558644A
JPS558644A JP8078478A JP8078478A JPS558644A JP S558644 A JPS558644 A JP S558644A JP 8078478 A JP8078478 A JP 8078478A JP 8078478 A JP8078478 A JP 8078478A JP S558644 A JPS558644 A JP S558644A
Authority
JP
Japan
Prior art keywords
tape
light source
leading
running
passing
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
JP8078478A
Other languages
Japanese (ja)
Inventor
Masataka Isaki
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 JP8078478A priority Critical patent/JPS558644A/en
Publication of JPS558644A publication Critical patent/JPS558644A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/66—Threading; Loading; Automatic self-loading
    • G11B15/665—Threading; Loading; Automatic self-loading by extracting loop of record carrier from container
    • G11B15/6653—Threading; Loading; Automatic self-loading by extracting loop of record carrier from container to pull the record carrier against drum

Landscapes

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

Abstract

PURPOSE:To detect optically a leader tape in a simple constitution to perform tape end detection by making a light source and a tape leadingout material into one body in a VTR, etc. CONSTITUTION:Main tape leading-out pin 40 has only the center formed by transparent material 51 and has light source 52 inside material 51 and functions as a tape leading-out material at a loading time and stops at a position slightly distant from the running position of tape 3 after loading completion. Meanwhile, photo detection element 53 is fixed at a position opposite to light source 52 in respect to tape 3 and detects the light passing through tape 3. Then, element 53 receives a large light quantity change due to the passing of a leader tape provided in the end part of tape 3 and operates a solenoid, etc., to stop the running of tape 3.
JP8078478A 1978-06-30 1978-06-30 Magnetic tape device Pending JPS558644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8078478A JPS558644A (en) 1978-06-30 1978-06-30 Magnetic tape device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8078478A JPS558644A (en) 1978-06-30 1978-06-30 Magnetic tape device

Publications (1)

Publication Number Publication Date
JPS558644A true JPS558644A (en) 1980-01-22

Family

ID=13728062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8078478A Pending JPS558644A (en) 1978-06-30 1978-06-30 Magnetic tape device

Country Status (1)

Country Link
JP (1) JPS558644A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595455A (en) * 1982-07-02 1984-01-12 Victor Co Of Japan Ltd Recording and reproducing device
JPS59218662A (en) * 1983-05-27 1984-12-08 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing device
JPS63157830U (en) * 1987-03-31 1988-10-17
CN1054563C (en) * 1997-02-27 2000-07-19 北京钨钼材料厂 Production method of lanthanum-tungsten electrode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595455A (en) * 1982-07-02 1984-01-12 Victor Co Of Japan Ltd Recording and reproducing device
JPS59218662A (en) * 1983-05-27 1984-12-08 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing device
JPS63157830U (en) * 1987-03-31 1988-10-17
CN1054563C (en) * 1997-02-27 2000-07-19 北京钨钼材料厂 Production method of lanthanum-tungsten electrode

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