JPH0413791B2 - - Google Patents

Info

Publication number
JPH0413791B2
JPH0413791B2 JP60200725A JP20072585A JPH0413791B2 JP H0413791 B2 JPH0413791 B2 JP H0413791B2 JP 60200725 A JP60200725 A JP 60200725A JP 20072585 A JP20072585 A JP 20072585A JP H0413791 B2 JPH0413791 B2 JP H0413791B2
Authority
JP
Japan
Prior art keywords
disk
disks
spindle
hub
offset
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
Application number
JP60200725A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61156580A (ja
Inventor
Josefu Shumitsuto Roorensu
Ruisu Seuaason Randooru
Ritsuku Tafutei Rairu
Harii Uosu Suchiibun
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS61156580A publication Critical patent/JPS61156580A/ja
Publication of JPH0413791B2 publication Critical patent/JPH0413791B2/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
    • G11B23/0014—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 record carriers not specifically of filamentary or web form
    • G11B23/0021—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 record carriers not specifically of filamentary or web form discs
    • 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
    • G11B17/038—Centering or locking of a plurality of discs in a single cartridge

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
JP60200725A 1984-12-24 1985-09-12 デイスク・パツク組立体 Granted JPS61156580A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US685433 1984-12-24
US06/685,433 US4683505A (en) 1984-12-24 1984-12-24 Alternately centered disk pack assembly and method

Publications (2)

Publication Number Publication Date
JPS61156580A JPS61156580A (ja) 1986-07-16
JPH0413791B2 true JPH0413791B2 (en]) 1992-03-10

Family

ID=24752190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60200725A Granted JPS61156580A (ja) 1984-12-24 1985-09-12 デイスク・パツク組立体

Country Status (5)

Country Link
US (1) US4683505A (en])
EP (1) EP0185946B1 (en])
JP (1) JPS61156580A (en])
CA (1) CA1231442A (en])
DE (1) DE3585914D1 (en])

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61165874A (ja) * 1985-01-18 1986-07-26 Hitachi Ltd 磁気デイスク装置
US4764828A (en) * 1987-03-26 1988-08-16 Priam Corporation Disc and hub centering device for use in magnetic disc drives
US4910620A (en) * 1987-05-14 1990-03-20 Siemens Aktiengesellschaft Thermal compensation structure for a disk pack module
US4819105A (en) * 1987-10-26 1989-04-04 Edwards William J Spacer for disks in a disk drive
JPH0729731Y2 (ja) * 1988-12-27 1995-07-05 株式会社三協精機製作所 回転電機
US5089922A (en) * 1990-07-31 1992-02-18 Seagate Technology, Inc. Disc drive motor spindle hub for holding a disc and spacer stack firmly in place
US5317225A (en) * 1990-12-29 1994-05-31 Nippon Densan Corporation Spindle motor and disk clamp mechanism used therein
US5200866A (en) * 1991-04-09 1993-04-06 Digital Equipment Corporation Motorized spindle for disk drive
JPH0718725Y2 (ja) * 1992-04-16 1995-05-01 朝子 橋本 病人用下着
JP2637908B2 (ja) * 1992-11-13 1997-08-06 インターナショナル・ビジネス・マシーンズ・コーポレイション ディスク駆動装置及びクランプ・リングの装着方法
US5572382A (en) * 1993-04-07 1996-11-05 Kabushiki Kaisha Toshiba Magnetic disk drive having balanced magnetic disk mounted on rotor of motor
US5457589A (en) * 1994-03-02 1995-10-10 Seagate Technology, Inc. Hub-disc interface reducing hub reloaded disc surface curvature
US5497281A (en) * 1994-10-31 1996-03-05 Hewlett-Packard Company Expanded tubular hub disk pack assembly clamp
US5555144A (en) * 1995-01-12 1996-09-10 Seagate Technology, Inc. Balancing system for a disc drive disc assembly
KR100229031B1 (ko) * 1995-01-18 1999-11-01 토마스 에프.멀베니 하드 디스크 드라이브용 디스크 클램핑 시스템
EP0826214B1 (en) * 1995-05-19 1999-07-14 Rubber-Tech, Inc. Disk drive assembly with vibration dampening characteristics
JP3758728B2 (ja) 1995-12-07 2006-03-22 ヒタチグローバルストレージテクノロジーズネザーランドビーブイ ディスクの回転バランス調整方法及びその装置
US6101876A (en) * 1996-06-28 2000-08-15 Western Digital Corporation Method of centering a disk pack of a disk drive
US5824898A (en) * 1996-06-28 1998-10-20 Western Digital Corporation Rotating mass balancing system
KR100223210B1 (ko) * 1996-11-09 1999-10-15 윤종용 하드디스크 드라이브의 디스크 균형을 맞추기 위한 조립방법 및 장치
KR19990002828A (ko) * 1997-06-23 1999-01-15 이형도 하드 디스크 드라이브의 디스크 스택 어셈블리
US6912775B1 (en) * 1998-02-25 2005-07-05 Seagate Technology Llc Assembly device for assembling components
US6178063B1 (en) 1998-06-05 2001-01-23 Seagate Technology Llc Statically and dynamically balancing a three-disc disc stack assembly
US6334372B2 (en) * 1999-04-02 2002-01-01 Lite-On Technology Corp. Vibration-reducing device for high-speed rotational body
US20030192166A1 (en) * 1999-12-03 2003-10-16 Kelemen Bradley D. Disk pack balancing method using spindle hub vibration
US6678114B2 (en) * 2000-02-25 2004-01-13 Seagate Technology Llc Disc biasing scheme to minimize single plane unbalance for hard disc drives
JP4117104B2 (ja) * 2000-11-20 2008-07-16 株式会社日立グローバルストレージテクノロジーズ ディスク媒体組み込み方法及び装置
US6771451B2 (en) 2001-09-04 2004-08-03 Samsung Electronics Co., Ltd. Auto centering of disks on a hard disk drive
US6791791B1 (en) 2001-11-30 2004-09-14 Western Digital Technologies, Inc. Disk drive with disks having different disk stiffness, thickness and material combinations
US6897393B1 (en) * 2002-04-30 2005-05-24 Western Digital Technologies, Inc. Methods for reducing costs and increasing throughput in the manufacture of disk drives by categorizing the disk drives based upon measured disk pack imbalance
KR100468738B1 (ko) * 2002-06-19 2005-01-29 삼성전자주식회사 하드 디스크 드라이브의 디스크 스페이서
US6698286B1 (en) * 2002-09-30 2004-03-02 Western Digital Technologies, Inc. Method of balancing a disk pack using spindle motor imbalance and disk drive including a balanced disk pack
US20040100725A1 (en) * 2002-11-21 2004-05-27 Shiao-Hua Chen Damped disk spacer
US7230728B2 (en) * 2003-07-22 2007-06-12 Seagate Technology Llc Disc imbalance compensation during disc drive assembly
US7669711B1 (en) 2005-10-19 2010-03-02 Western Digital Technologies, Inc. Disk pack balancing station
CN112286376B (zh) 2014-11-17 2024-04-26 株式会社和冠 位置指示器
US9502051B1 (en) 2015-09-15 2016-11-22 Seagate Technology Llc Methods and devices for reducing couple imbalance in a hard drive

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159050A (en) * 1963-12-11 1964-12-01 William H Wilson Dynamic balancing apparatus
US3817088A (en) * 1972-08-23 1974-06-18 Caelus Memories Inc Magnetic memory disc pack balancing system
US3838464A (en) * 1972-10-24 1974-09-24 Nashua Corp Retaining ring for magnetic disc pack assembly
US3854347A (en) * 1973-08-15 1974-12-17 J Hellerich Dynamic balancing device for a computer disc memory
US3964341A (en) * 1974-03-18 1976-06-22 The Johns Hopkins University Multi-ring filament rotor
US4224648A (en) * 1978-10-16 1980-09-23 Control Data Corporation Disc centering
NL7908859A (nl) * 1979-12-10 1981-07-01 Philips Nv Systeem voor het inschrijven en/of uitlezen van informatie.
US4561035A (en) * 1982-07-21 1985-12-24 Sperry Corporation Method and apparatus for clamping and balancing rotatable members

Also Published As

Publication number Publication date
EP0185946A3 (en) 1988-09-21
CA1231442A (en) 1988-01-12
US4683505A (en) 1987-07-28
JPS61156580A (ja) 1986-07-16
EP0185946A2 (en) 1986-07-02
EP0185946B1 (en) 1992-04-22
DE3585914D1 (de) 1992-05-27

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