JPS57189378A - One way running cassette - Google Patents

One way running cassette

Info

Publication number
JPS57189378A
JPS57189378A JP56072588A JP7258881A JPS57189378A JP S57189378 A JPS57189378 A JP S57189378A JP 56072588 A JP56072588 A JP 56072588A JP 7258881 A JP7258881 A JP 7258881A JP S57189378 A JPS57189378 A JP S57189378A
Authority
JP
Japan
Prior art keywords
photodetecting
light
tape
light projecting
cassette
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
JP56072588A
Other languages
Japanese (ja)
Inventor
Tadashi Kobayashi
Norizo Saito
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP56072588A priority Critical patent/JPS57189378A/en
Publication of JPS57189378A publication Critical patent/JPS57189378A/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
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/04—Magazines; Cassettes for webs or filaments
    • G11B23/041—Details
    • G11B23/042—Auxiliary features

Abstract

PURPOSE:To make the one way running of a tape electrically possible by forming an optical path part which conducts the light of a light projecting part to a photodetecting part at all times by bypassing a tape running path between the light projecting part and the photodetecting part thereby transmitting a tape rewinding inhibition signal at all times from the photodetecting part. CONSTITUTION:A lamp 10 for light projection is disposed in the central part of the F half of a cassette 1, and a photodetecting part 16 is disposed on the side of a supply side reel facing an opening window 14. An optical fiber 18 is adhered between the light projecting part and the photodetecting part and the light of the light projecting part is conducted at all times to the photodetecting part, whereby the rewinding of the magnetic tape is stopped and the exertion of abnormal tension upon the magnetic tape is prevented.
JP56072588A 1981-05-14 1981-05-14 One way running cassette Pending JPS57189378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56072588A JPS57189378A (en) 1981-05-14 1981-05-14 One way running cassette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56072588A JPS57189378A (en) 1981-05-14 1981-05-14 One way running cassette

Publications (1)

Publication Number Publication Date
JPS57189378A true JPS57189378A (en) 1982-11-20

Family

ID=13493692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56072588A Pending JPS57189378A (en) 1981-05-14 1981-05-14 One way running cassette

Country Status (1)

Country Link
JP (1) JPS57189378A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609076U (en) * 1983-06-24 1985-01-22 日本ビクター株式会社 tape cassette

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609076U (en) * 1983-06-24 1985-01-22 日本ビクター株式会社 tape cassette
JPH0127190Y2 (en) * 1983-06-24 1989-08-14

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