JPS5522277A - Cassette disk - Google Patents

Cassette disk

Info

Publication number
JPS5522277A
JPS5522277A JP9511178A JP9511178A JPS5522277A JP S5522277 A JPS5522277 A JP S5522277A JP 9511178 A JP9511178 A JP 9511178A JP 9511178 A JP9511178 A JP 9511178A JP S5522277 A JPS5522277 A JP S5522277A
Authority
JP
Japan
Prior art keywords
disk
cassette case
plates
cassette
space
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
JP9511178A
Other languages
Japanese (ja)
Inventor
Toshiji Fujita
Tateo Terajima
Senhiko Yamada
Yoshio Nagashima
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.)
Toppan Inc
Original Assignee
Toppan Printing 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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP9511178A priority Critical patent/JPS5522277A/en
Publication of JPS5522277A publication Critical patent/JPS5522277A/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
    • G11B23/03—Containers for flat record carriers

Abstract

PURPOSE:To ensure the turning of the cassette case with the disk stored at the reproduction time by providing the ribs to the upper and lower plates of the cassette case and thus preventing the dust from entering the cassette case through the rotary hole provided to the cassette case at the non-reproduction time. CONSTITUTION:Cassette case 10 consists of upper and lower plates 11 and 12 plus others, and disk 1 is stored into space 13 between plates 11 and 12. Rib 15 among ribs 14 and 15 provided to plates 11 and 12 is formed so as to touch the central non-record surface of disk 1, and thus no dust enters space 13 through rotary holes 16 formed to plates 11 and 12. When cassette disk 1 is reproduced, enter axle 31 is fitted to center hole 3 for disk 1. Thus disk 1 is pressed by holder axle 32 to be fixed to turntable 30. At the same time, case 10 is fixed to substrate 40 to be given the electric conduction to electromagnet 41. As a result, steel plate 17 of plate 12 is stretched to secure a minute space to rib 15 from disk 1.
JP9511178A 1978-08-04 1978-08-04 Cassette disk Pending JPS5522277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9511178A JPS5522277A (en) 1978-08-04 1978-08-04 Cassette disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9511178A JPS5522277A (en) 1978-08-04 1978-08-04 Cassette disk

Publications (1)

Publication Number Publication Date
JPS5522277A true JPS5522277A (en) 1980-02-16

Family

ID=14128734

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9511178A Pending JPS5522277A (en) 1978-08-04 1978-08-04 Cassette disk

Country Status (1)

Country Link
JP (1) JPS5522277A (en)

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