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    • 50. 发明授权
    • Optical head moving section of optical disk drive
    • 光盘驱动器的光头移动部分
    • US5610899A
    • 1997-03-11
    • US523849
    • 1995-09-05
    • Tadashi Nomura
    • Tadashi Nomura
    • G11B7/085G11B7/09G11B21/02G11B17/00
    • G11B7/08582
    • An optical disk drive includes a spindle motor fixed on a base, a moving section carrying an optical head, a plurality of rolling members carried by the moving section, a pair of rails fixed on the base and carrying the rolling members for moving the moving section to any target position of a disk medium. A ferromagnetic member is fixed on the base and a permanent magnet fixed to the moving section faces the ferromagnetic member with a predetermined space being provided with respect to the ferromagnetic member. With this arrangement, the disk drive requires only five rolling member. Due to a magnetic attracting force produced between the ferromagnetic member and the permanent magnet, the moving section and the rail members are under appropriate pressure contact, which makes it possible to provide a simple, compact and low cost pressure contact mechanism.
    • 光盘驱动器包括固定在基座上的主轴马达,承载光学头的移动部分,由移动部分承载的多个滚动部件,固定在基座上的一对轨道,并承载用于移动移动部分的滚动部件 到盘介质的任何目标位置。 铁磁构件固定在基座上,并且固定到移动部分的永磁体面向铁磁构件,并且相对于铁磁构件设置有预定的空间。 通过这种安排,磁盘驱动器仅需要五个滚动部件。 由于在铁磁部件和永久磁铁之间产生的磁吸引力,移动部件和导轨部件处于适当的压力接触下,这使得可以提供简单,紧凑且低成本的压力接触机构。