JPS5522294A - Cassette disk - Google Patents

Cassette disk

Info

Publication number
JPS5522294A
JPS5522294A JP9591578A JP9591578A JPS5522294A JP S5522294 A JPS5522294 A JP S5522294A JP 9591578 A JP9591578 A JP 9591578A JP 9591578 A JP9591578 A JP 9591578A JP S5522294 A JPS5522294 A JP S5522294A
Authority
JP
Japan
Prior art keywords
disk
plates
case
rib
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.)
Granted
Application number
JP9591578A
Other languages
Japanese (ja)
Other versions
JPS57593B2 (en
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 JP9591578A priority Critical patent/JPS5522294A/en
Publication of JPS5522294A publication Critical patent/JPS5522294A/en
Publication of JPS57593B2 publication Critical patent/JPS57593B2/ja
Granted 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 prevent the dust from entering the cassette case through the rotary hole of the case at the non-reproduction time by providing the rib and the hook- shaped part to both the upper and lower plates of the cassette case each, and at the same time to simplify the structure of the disk and the reproduction device at the reproduction time. CONSTITUTION:Cassette case 10 consists of upper plate 11 and lower plate 12 and others, and disk 1 is stored in space 13 between plates 11 and 12. Rib 15 among ribs 14 and 15 provided to plates 11 and 12 is made to touch the central non-record surface of disk 1, and the dust is prevented from entering space 13 through rotary holes 16 formed to plates 11 and 11. Then hole 16 is provided to the inner diameter side of rib 15 and fixes case 10 to the turntable to turn disk 1 from ooutside of case 10. At the same time, hook-shaped part 17 is formed on the outer surfaces of plates 11 and 12 and the edge of hole 16 in order to pull plates 11 and 12 toward outside at the disk reproduction time and also to make rib 15 separate from the surface of disk 1. Thus, the structure can be simplified for both the cassette disk and the reproduction device.
JP9591578A 1978-08-07 1978-08-07 Cassette disk Granted JPS5522294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9591578A JPS5522294A (en) 1978-08-07 1978-08-07 Cassette disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9591578A JPS5522294A (en) 1978-08-07 1978-08-07 Cassette disk

Publications (2)

Publication Number Publication Date
JPS5522294A true JPS5522294A (en) 1980-02-16
JPS57593B2 JPS57593B2 (en) 1982-01-07

Family

ID=14150567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9591578A Granted JPS5522294A (en) 1978-08-07 1978-08-07 Cassette disk

Country Status (1)

Country Link
JP (1) JPS5522294A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6124873U (en) * 1984-07-19 1986-02-14 富士通テン株式会社 Disc with protective case
JPS61114576U (en) * 1984-12-27 1986-07-19
US5175726A (en) * 1988-09-09 1992-12-29 Canon Kabushiki Kaisha Disk cartridge which allows media within to tilt

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6124873U (en) * 1984-07-19 1986-02-14 富士通テン株式会社 Disc with protective case
JPS61114576U (en) * 1984-12-27 1986-07-19
US5175726A (en) * 1988-09-09 1992-12-29 Canon Kabushiki Kaisha Disk cartridge which allows media within to tilt

Also Published As

Publication number Publication date
JPS57593B2 (en) 1982-01-07

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