JPH0722762Y2 - 磁気ディスク用スピンドル・ロック装置 - Google Patents

磁気ディスク用スピンドル・ロック装置

Info

Publication number
JPH0722762Y2
JPH0722762Y2 JP1989090202U JP9020289U JPH0722762Y2 JP H0722762 Y2 JPH0722762 Y2 JP H0722762Y2 JP 1989090202 U JP1989090202 U JP 1989090202U JP 9020289 U JP9020289 U JP 9020289U JP H0722762 Y2 JPH0722762 Y2 JP H0722762Y2
Authority
JP
Japan
Prior art keywords
lock
spindle
coil
power supply
circuit
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
JP1989090202U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0332765U (en]
Inventor
哲行 菱川
義次 北村
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP1989090202U priority Critical patent/JPH0722762Y2/ja
Priority to US07/560,638 priority patent/US5157566A/en
Publication of JPH0332765U publication Critical patent/JPH0332765U/ja
Application granted granted Critical
Publication of JPH0722762Y2 publication Critical patent/JPH0722762Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/22—Brakes other than speed-regulating brakes

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Moving Of Heads (AREA)
JP1989090202U 1989-07-31 1989-07-31 磁気ディスク用スピンドル・ロック装置 Expired - Lifetime JPH0722762Y2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1989090202U JPH0722762Y2 (ja) 1989-07-31 1989-07-31 磁気ディスク用スピンドル・ロック装置
US07/560,638 US5157566A (en) 1989-07-31 1990-07-31 Magnetic disk drive having a lock mechanism for preventing rotation of a disk spindle after the disk spindle is stopped

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989090202U JPH0722762Y2 (ja) 1989-07-31 1989-07-31 磁気ディスク用スピンドル・ロック装置

Publications (2)

Publication Number Publication Date
JPH0332765U JPH0332765U (en]) 1991-03-29
JPH0722762Y2 true JPH0722762Y2 (ja) 1995-05-24

Family

ID=13991904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989090202U Expired - Lifetime JPH0722762Y2 (ja) 1989-07-31 1989-07-31 磁気ディスク用スピンドル・ロック装置

Country Status (2)

Country Link
US (1) US5157566A (en])
JP (1) JPH0722762Y2 (en])

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6535359B1 (en) 1999-08-25 2003-03-18 Seagate Technology Llc Inertial latch for mobile and small disc drives
US6633448B1 (en) * 2000-09-06 2003-10-14 International Business Machines Corporation Disk data storage device having improved tolerance for stressful environments
US6862153B2 (en) * 2000-09-06 2005-03-01 Hitachi, Ltd. Apparatus for latching a magnetic disk
US6844996B1 (en) 2002-01-31 2005-01-18 Western Digital Technologies, Inc. Disk drive comprising a ratchet arm applied to a disk and disengaged through windage generated by the disk rotating
US6867946B1 (en) 2002-01-31 2005-03-15 Western Digital Technologies, Inc. Disk drive employing a spindle motor comprising a locking spring arm disengaged through stator coil flux
US6801389B1 (en) 2002-01-31 2004-10-05 Western Digital Technologies, Inc. Disk drive employing a spindle motor comprising a hub ratchet arm disengaged through angular velocity
TW200638341A (en) * 2005-04-20 2006-11-01 Benq Corp Disc driver

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881264A (en) * 1956-09-10 1959-04-07 Mc Graw Edison Co Dictation equipment
US3936056A (en) * 1975-03-17 1976-02-03 International Business Machines Corporation Spindle depress/brake mechanism
NL182609C (nl) * 1977-02-10 1988-04-05 Philips Nv Videoplatenspeler.
DE2967103D1 (en) * 1978-10-03 1984-08-16 Tokyo Shibaura Electric Co Semiconductor memory device
DE2917385A1 (de) * 1979-04-28 1980-11-13 Papst Motoren Kg Verfahren zum betrieb eines plattenspeichers
JPS56105362A (en) * 1980-01-22 1981-08-21 Sony Corp Record player
JPS56105363A (en) * 1980-01-22 1981-08-21 Sony Corp Record player
JPS56105365A (en) * 1980-01-22 1981-08-21 Sony Corp Record player
US4331989A (en) * 1980-05-15 1982-05-25 Priam Corporation Magnetic disc file having dual lock mechanism
NL8006353A (nl) * 1980-11-21 1982-06-16 Philips Nv Signaalvergelijkingsschakeling.
JPS57103164A (en) * 1980-12-18 1982-06-26 Toshiba Corp Rotation breaking device of magnetic disk device
US4807071A (en) * 1984-03-12 1989-02-21 Matsushita Electric Industrial Co., Ltd. Mechanism for preventing damage to the magnetic head and medium of a magnetic recording/reproducing apparatus during transport
JPH06101215B2 (ja) * 1986-09-08 1994-12-12 富士通株式会社 磁気デイスク装置の吸着解除方法
US4979062A (en) * 1987-05-29 1990-12-18 Conner Peripherals, Inc. Disk drive architecture
US4831469A (en) * 1987-07-29 1989-05-16 International Business Machines Corporation Disk drive head retract and motor braking method and apparatus
JPH01204270A (ja) * 1988-02-08 1989-08-16 Toshiba Corp 情報処理装置
JPH02105375A (ja) * 1988-10-14 1990-04-17 Mitsubishi Electric Corp 磁気ヘッドを担持するキャリアの自動錠止装置
JPH02172076A (ja) * 1988-12-23 1990-07-03 Toshiba Corp ロック機構

Also Published As

Publication number Publication date
US5157566A (en) 1992-10-20
JPH0332765U (en]) 1991-03-29

Similar Documents

Publication Publication Date Title
US5363261A (en) Disk drive actuator latch
JPH0722762Y2 (ja) 磁気ディスク用スピンドル・ロック装置
CA2236278A1 (en) Electronic reset for solenoid activated control in an electronic lock
US4313142A (en) Mode changing apparatus for a tape recorder
JPS6217738B2 (en])
US4974006A (en) Camera lens driving device
JP3360786B2 (ja) カメラの手動式フィルム巻上装置
US4717008A (en) Automatic coin feeder with winding mechanism
JP2518363B2 (ja) ステップモ―タ内蔵カメラ
US4006979A (en) Electromagnetic release device for a motion picture camera
JP2648839B2 (ja) 電気シャッタの状態検出装置
JPS6151780B2 (en])
JPS6125086Y2 (en])
US4272839A (en) Electric timer
JPH0733222Y2 (ja) カメラの予備巻制御装置
JP3127389B2 (ja) ディーゼルエンジンの始動装置
JPH0434513Y2 (en])
JPH06267739A (ja) ソレノイド駆動回路
JPH0257293B2 (en])
JPH0862482A (ja) 電磁駆動カメラ
JPH04340Y2 (en])
JPH09219996A (ja) ステッピングモータの駆動方法
JPH0343576Y2 (en])
JP2940500B2 (ja) 磁気ディスク装置
JP2609092B2 (ja) 磁気デイスク装置