JPH0247026B2 - - Google Patents

Info

Publication number
JPH0247026B2
JPH0247026B2 JP56088124A JP8812481A JPH0247026B2 JP H0247026 B2 JPH0247026 B2 JP H0247026B2 JP 56088124 A JP56088124 A JP 56088124A JP 8812481 A JP8812481 A JP 8812481A JP H0247026 B2 JPH0247026 B2 JP H0247026B2
Authority
JP
Japan
Prior art keywords
spindle
hole
adapter
disk
center
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.)
Expired - Lifetime
Application number
JP56088124A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57203272A (en
Inventor
Masayuki Abe
Junichi Ikoma
Kenji Abiko
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56088124A priority Critical patent/JPS57203272A/ja
Priority to US06/386,277 priority patent/US4497003A/en
Publication of JPS57203272A publication Critical patent/JPS57203272A/ja
Publication of JPH0247026B2 publication Critical patent/JPH0247026B2/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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G11B17/0282—Positioning or locking of single discs of discs rotating during transducing operation by means provided on the turntable

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
JP56088124A 1981-06-10 1981-06-10 Disc locating mechanism Granted JPS57203272A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56088124A JPS57203272A (en) 1981-06-10 1981-06-10 Disc locating mechanism
US06/386,277 US4497003A (en) 1981-06-10 1982-06-08 Disc positioning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56088124A JPS57203272A (en) 1981-06-10 1981-06-10 Disc locating mechanism

Publications (2)

Publication Number Publication Date
JPS57203272A JPS57203272A (en) 1982-12-13
JPH0247026B2 true JPH0247026B2 (enExample) 1990-10-18

Family

ID=13934153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56088124A Granted JPS57203272A (en) 1981-06-10 1981-06-10 Disc locating mechanism

Country Status (2)

Country Link
US (1) US4497003A (enExample)
JP (1) JPS57203272A (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8300478A (nl) * 1983-02-09 1984-09-03 Philips Nv Optisch uitleesbare geheugenschijf.
US4667257A (en) * 1985-11-18 1987-05-19 Chan Industries, Inc. Disk drive and centering mechanism for microfloppy disk drive
JPS62277657A (ja) * 1986-05-23 1987-12-02 Matsushita Electric Ind Co Ltd デイスク芯出し装置
EP0563230B1 (en) * 1990-12-19 2000-02-16 Mobile Storage Technology Inc. Miniature hard disk drive for portable computer
US6310747B1 (en) 1991-09-25 2001-10-30 Mobile Storage Technology, Inc. Method for reducing external signal interference with signals in a computer disk storage system
US5379171A (en) * 1991-09-25 1995-01-03 Integral Peripherals Microminiature hard disk drive
US5243481A (en) * 1991-09-25 1993-09-07 Integral Peripherals, Inc. Clamp for information storage disk
US5596458A (en) * 1994-12-19 1997-01-21 Integral Peripherals, Inc. Variable zone layout for information storage disk drive
US6091559A (en) * 1994-12-19 2000-07-18 Mobile Storage Technology Inc. Variable zone layout and track pitch parameter considerations for information storage disk drive
JPH09219038A (ja) * 1996-02-13 1997-08-19 Pioneer Electron Corp 光ディスク
US7342741B1 (en) 2000-02-10 2008-03-11 Esgw Holdings Limited Disk drive with variable track density
JP2004103122A (ja) * 2002-09-10 2004-04-02 Fuji Photo Film Co Ltd ディスクカートリッジのセンタコアのチャッキング構造

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091454A (en) * 1976-11-02 1978-05-23 International Business Machines Corporation Self-centering disk having an eccentric elliptical-shaped center locating hole
US4320425A (en) * 1980-04-10 1982-03-16 Memorex Mini Disc Drive Corporation Centering and mounting apparatus for a magnetic recording disc
US4391543A (en) * 1981-01-12 1983-07-05 Magnetic Peripherals Inc. Quick disconnect pack

Also Published As

Publication number Publication date
US4497003A (en) 1985-01-29
JPS57203272A (en) 1982-12-13

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