JPS57212625A - Flexible disk - Google Patents

Flexible disk

Info

Publication number
JPS57212625A
JPS57212625A JP9711481A JP9711481A JPS57212625A JP S57212625 A JPS57212625 A JP S57212625A JP 9711481 A JP9711481 A JP 9711481A JP 9711481 A JP9711481 A JP 9711481A JP S57212625 A JPS57212625 A JP S57212625A
Authority
JP
Japan
Prior art keywords
disk
hole
center
hubs
center hole
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
JP9711481A
Other languages
Japanese (ja)
Inventor
Koichiro Nakagawa
Satoshi Suyama
Masahiro Yanagi
Yasutaka Nakajima
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 JP9711481A priority Critical patent/JPS57212625A/en
Priority to AU84925/82A priority patent/AU544979B2/en
Priority to US06/389,152 priority patent/US4525758A/en
Priority to IT8248667A priority patent/IT1148967B/en
Priority to DE19823222844 priority patent/DE3222844A1/en
Priority to GB08217763A priority patent/GB2103862B/en
Priority to CA000405447A priority patent/CA1189616A/en
Priority to NLAANVRAGE8202480,A priority patent/NL184493C/en
Priority to FR8210695A priority patent/FR2508220A1/en
Publication of JPS57212625A publication Critical patent/JPS57212625A/en
Priority to NL8802984A priority patent/NL8802984A/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • G11B5/825—Disk carriers flexible discs

Abstract

PURPOSE:To achieve sure rotation transmission by providing a projecting part to at least one of two disk hubs, and inserting this into a hole formed near the center hole of a disk. CONSTITUTION:A flexible disk 1 like a magnetic sheet disk is clamped near its center part by disk hubs 2 and 3 from above and below. At the center part of the disk hub 2, a circumferential part 4 is formed in one body and this circumferential part 4 is fitted in the center hole 5 of the disk 1. The facing surface parts 6 and 7 of the disk hubs 2 and 3 serve to clamp te circumferential surfaces of the center hole 5 of the disk 1 from above and below during assembly. A pinlike projection 8 formed on the surface part 6 of the disk hub 2 in one body is inserted into and engaged with a hole part 9 provided in the surface near the center hole 5, and the tip of the projection 8 is fitted in a hole 10 formed at the surface part 7 of the other disk hub 3.
JP9711481A 1981-06-19 1981-06-22 Flexible disk Pending JPS57212625A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP9711481A JPS57212625A (en) 1981-06-22 1981-06-22 Flexible disk
AU84925/82A AU544979B2 (en) 1981-06-19 1982-06-16 Information disk cartridge
US06/389,152 US4525758A (en) 1981-06-19 1982-06-16 Cartridge
GB08217763A GB2103862B (en) 1981-06-19 1982-06-18 Record medium assembly
DE19823222844 DE3222844A1 (en) 1981-06-19 1982-06-18 DISK CARTRIDGE
IT8248667A IT1148967B (en) 1981-06-19 1982-06-18 DRAWER CONTAINING A RECORDING DISK AND A SHUTTER MECHANISM FOR DISC ACCESS WINDOWS
CA000405447A CA1189616A (en) 1981-06-19 1982-06-18 Cartridge
NLAANVRAGE8202480,A NL184493C (en) 1981-06-19 1982-06-18 PATTERN WITH A DISC FROM A RECORD MEDIUM.
FR8210695A FR2508220A1 (en) 1981-06-19 1982-06-18 CARTRIDGE FOR INFORMATION RECORDING / REPRODUCING APPARATUS
NL8802984A NL8802984A (en) 1981-06-19 1988-12-02 PATTERN WITH REGISTRATION DISC.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9711481A JPS57212625A (en) 1981-06-22 1981-06-22 Flexible disk

Publications (1)

Publication Number Publication Date
JPS57212625A true JPS57212625A (en) 1982-12-27

Family

ID=14183543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9711481A Pending JPS57212625A (en) 1981-06-19 1981-06-22 Flexible disk

Country Status (1)

Country Link
JP (1) JPS57212625A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155676U (en) * 1982-04-10 1983-10-18 日立マクセル株式会社 disk cartridge
JPS59173172U (en) * 1983-04-30 1984-11-19 ソニー株式会社 magnetic disk
JPS6085783U (en) * 1983-11-16 1985-06-13 富士写真フイルム株式会社 magnetic disk cartridge
US5548454A (en) * 1989-01-27 1996-08-20 Hitachi, Ltd. Information recording disk, its production method and recording apparatus
KR100605375B1 (en) * 2004-11-17 2006-07-31 한국전자통신연구원 Disk for storing data

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155676U (en) * 1982-04-10 1983-10-18 日立マクセル株式会社 disk cartridge
JPS6316048Y2 (en) * 1982-04-10 1988-05-09
JPS59173172U (en) * 1983-04-30 1984-11-19 ソニー株式会社 magnetic disk
JPH0333984Y2 (en) * 1983-04-30 1991-07-18
JPS6085783U (en) * 1983-11-16 1985-06-13 富士写真フイルム株式会社 magnetic disk cartridge
JPH0535485Y2 (en) * 1983-11-16 1993-09-08
US5548454A (en) * 1989-01-27 1996-08-20 Hitachi, Ltd. Information recording disk, its production method and recording apparatus
KR100605375B1 (en) * 2004-11-17 2006-07-31 한국전자통신연구원 Disk for storing data
US7562374B2 (en) 2004-11-17 2009-07-14 Electronics And Telecommunications Research Institute Form factor disk

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