APPARATUS AND METHOD FOR MEASUREMENT OF SHOCK

    公开(公告)号:JP2002048812A

    公开(公告)日:2002-02-15

    申请号:JP2000197369

    申请日:2000-06-29

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a shock measuring apparatus by which a shock value can be measured precisely without changing the system of a notebook-type personal computer. SOLUTION: The shock measuring apparatus 1 measures a shock to which the notebook-type M comprising a media bay equipped with a hard disk drive is subjected. The apparatus 1 is provided with a shock measuring circuit 2 which comprises an acceleration pickup 11 used to sense an acceleration as the shock and an HDD-compatible power-supply connector 8. The apparatus 1 has a size which agrees with the form factor of the hard disk drive.

    LAMP, LOADING/UNLOAIDNG MECHANISM AND DISK DRIVE DEVICE

    公开(公告)号:JPH11110933A

    公开(公告)日:1999-04-23

    申请号:JP26370597

    申请日:1997-09-29

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To reduce both of unloading torque and a data storage loss area. SOLUTION: Two suspensions respectively having a head slider for a disk upper surface 1a and a head slider for a disk lower surface 1b are respectively provided with a downward tab 37a and an upward tab 37b formed to be brought into contact with a lamp 6 when the head sliders are unloaded. The tabs 37 are first brought into contact with the loading/unloading slopes 64a and 64b of the lamp 6. The loading/unloading slope 64a is composed of the first slope of an inclined angle α1 and the second slope of an inclined angle α2(

    DISK DRIVE DEVICE AND LOCKING METHOD OF ACTUATOR

    公开(公告)号:JPH08221915A

    公开(公告)日:1996-08-30

    申请号:JP2981095

    申请日:1995-02-17

    Applicant: IBM

    Abstract: PURPOSE: To obtain a disc drive having a lock mechanism strong against strong impact by employing the lock mechanism in the horizontal and vertical directions for a recording medium. CONSTITUTION: When the rotation of a magnetic disc 3 decreases due to stoppage of a magnetic disc drive 1, an actuator arm 8 is shifted to a parking zone disposed on the inner circumferential side. When an iron piece 11 is attracted to a magnet 12, an arm 8 is shifted in the inner circumferential direction of recording medium 3 and eventually stopped. A lock mechanism comprising a solenoid coil 28 is movable up and down with respect to the recording medium 3 and when the arm 8 is shifted into the parking zone, the lock mechanism is shifted upward by means of the coil 28 and engages with the arm 8. The arm 8 is secured effectively even if a strong impact is applied externally in a short time under that state. Consequently, data on the medium 3 is protected against unexpected movement of the arm 8.

    DISK DRIVER, HARD DISK DRIVE AND CASTING OF HARD DISK DRIVE

    公开(公告)号:JP2002124060A

    公开(公告)日:2002-04-26

    申请号:JP2000313253

    申请日:2000-10-13

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a disk driver, etc., with which the noise during driving can be effectively lessened and reliability can be enhanced. SOLUTION: First ribs 28 and second ribs 29 are formed near the pivot of an actuator of the hard disk drive 20 to prevent the tilting of the pivot when the actuator is activated. Vibration absorption members 41 and 42 are interposed between the first ribs 28, the second ribs 29 and a cover 22 on a base 21 side such that these vibration absorption members 41 and 42 abut the cover 22. The vibration absorption members 41 and 42 are positioned in the middle between fixing points f1 and f6 of the cover 22 to the base 21 and a fixing point f8 to the pivot.

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