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    • 9. 发明授权
    • Disk drive device
    • 磁盘驱动器
    • US06510122B1
    • 2003-01-21
    • US09210544
    • 1998-12-14
    • Yoshiaki YamauchiHisahiro MikiShigeki MoriShinobu YoshidaTakashi KounoYoshihiro SatoKuniyuki Kimura
    • Yoshiaki YamauchiHisahiro MikiShigeki MoriShinobu YoshidaTakashi KounoYoshihiro SatoKuniyuki Kimura
    • G11B1702
    • G11B17/028G11B17/0285G11B33/08
    • Disk storage devices have exhibited an increase in rotational vibrations which attend high speed rotation due to weight unbalance of a disk. Accordingly, an unbalance correcting mechanism, provided with correcting balls to correct the aforesaid unbalance, meets a problem that the correcting balls are made unstable at the time of low speed rotation to generate vibrations and noises. A disk drive device is provided with an unbalance correcting mechanism comprising an annular-shaped groove provided in a turntable on a spindle motor and a plurality of correcting balls received in the groove, and in which a sliding resistance member is provided on a bottom surface of the annular-shaped groove to suppress a sliding resistance of the correcting balls on the sliding resistance member, and a correcting ball motion auxiliary member is provided on an inner peripheral side wall of the groove (toward an axis of rotation).
    • 磁盘存储设备已经表现出由于盘的重量不平衡而引起高速旋转的旋转振动的增加。 因此,设置有用于校正上述不平衡的校正球的不平衡校正机构遇到了在低速旋转时校正球变得不稳定以产生振动和噪声的问题。 磁盘驱动装置设置有不平衡校正机构,该不平衡校正机构包括设置在主轴电动机的转台上的环形槽和容纳在槽中的多个校正球,并且其中滑动阻力构件设置在 在所述凹槽(朝向旋转轴线)的内周侧壁上设置有抑制所述滑动阻力构件上的所述校正球的滑动阻力的环形槽和校正球运动辅助构件。