CA1231442A - Alternately centered disk pack assembly and method - Google Patents

Alternately centered disk pack assembly and method

Info

Publication number
CA1231442A
CA1231442A CA000488369A CA488369A CA1231442A CA 1231442 A CA1231442 A CA 1231442A CA 000488369 A CA000488369 A CA 000488369A CA 488369 A CA488369 A CA 488369A CA 1231442 A CA1231442 A CA 1231442A
Authority
CA
Canada
Prior art keywords
disk
disks
pack assembly
diameter
spindle
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
CA000488369A
Other languages
English (en)
French (fr)
Inventor
Laurence J. Schmidt
Randall L. Severson
Lyle R. Tufty
Steven H. Voss
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.)
HGST Netherlands BV
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
Application granted granted Critical
Publication of CA1231442A publication Critical patent/CA1231442A/en
Expired 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)
CA000488369A 1984-12-24 1985-08-08 Alternately centered disk pack assembly and method Expired CA1231442A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US685,433 1984-12-24
US06/685,433 US4683505A (en) 1984-12-24 1984-12-24 Alternately centered disk pack assembly and method

Publications (1)

Publication Number Publication Date
CA1231442A true CA1231442A (en) 1988-01-12

Family

ID=24752190

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000488369A Expired CA1231442A (en) 1984-12-24 1985-08-08 Alternately centered disk pack assembly and method

Country Status (5)

Country Link
US (1) US4683505A (en, 2012)
EP (1) EP0185946B1 (en, 2012)
JP (1) JPS61156580A (en, 2012)
CA (1) CA1231442A (en, 2012)
DE (1) DE3585914D1 (en, 2012)

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
DE69603274T2 (de) * 1995-05-19 1999-12-16 Rubber-Tech, Inc. Plattenantriebsvorrichtung mit schwingungsdämpfenden eigenschaften
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
US5824898A (en) * 1996-06-28 1998-10-20 Western Digital Corporation Rotating mass balancing system
US6101876A (en) * 1996-06-28 2000-08-15 Western Digital Corporation Method of centering a disk pack of a disk drive
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
KR102551801B1 (ko) 2014-11-17 2023-07-06 가부시키가이샤 와코무 위치 지시기
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
US4683505A (en) 1987-07-28
DE3585914D1 (de) 1992-05-27
JPH0413791B2 (en, 2012) 1992-03-10
EP0185946B1 (en) 1992-04-22
EP0185946A3 (en) 1988-09-21
JPS61156580A (ja) 1986-07-16
EP0185946A2 (en) 1986-07-02

Similar Documents

Publication Publication Date Title
CA1231442A (en) Alternately centered disk pack assembly and method
US7051346B2 (en) Disk drive apparatus having particular clamping device
CA1101119A (en) Multiple pack magnetic disk system
US20020191530A1 (en) Disk drive apparatus
US5724718A (en) Process for assembling a clamp ring to a disk stack assembly
EP0836185A2 (en) Self-compensating dynamic balancer apparatus for a disk player
US5572382A (en) Magnetic disk drive having balanced magnetic disk mounted on rotor of motor
US6288867B1 (en) Counter balance disc spacer for hard disc drives
EP0441557B1 (en) Rotating support apparatus in disk storage device
JP3744199B2 (ja) ディスクドライブ装置
JPH0386968A (ja) 磁気ディスク装置のバランス補正機構
US6557234B1 (en) Medium fixing method and medium support apparatus
JP2001101779A (ja) バランス補正装置およびそれを用いた光ディスク装置
US7234227B1 (en) Methods for centering disks in a magnetic disk assembly
KR100433708B1 (ko) 디스크 드라이브용 디스크 스택 조립체
JP3586086B2 (ja) ディスク駆動装置
KR100230304B1 (ko) 자기보상형 진자밸런서를 채용한 디스크 플레이어
JPS59165282A (ja) 磁気デイスク固定機構
JPH11201153A (ja) 回転機械
JPH0644721A (ja) 磁気ディスク装置
JP3744198B2 (ja) ディスクドライブ装置
JPH08321131A (ja) 磁気ディスク用スピンドルモータ
JPH02166682A (ja) 磁気ディスク装置
JP2001043612A (ja) 回転駆動装置
JPH03113882A (ja) 磁気ディスク装置

Legal Events

Date Code Title Description
MKEX Expiry