| 摘要 |
PURPOSE:To obtain a magnetic storage device which causes no head crush, by which a large power is applied to a magnetic head driving power device and a surface deflection of a magnetic disk is small, and also which has used a spindle motor having a high torque constant, by making an inclined hole in the rotating direction on a magnetic disk fixing plate. CONSTITUTION:On a magnetic disk fixing plate 11, an inclined hole is made in the rotating peripheral direction of a magnetic disk 12. There is a gap between the magnetic disk fixing plate 11 and a spindle hub 13, between the magnetic disk 12 and the spindle hub 13, and between a magnetic disk spacer 14 and the spindle hub 13, respectively, and air which has entered from the hole of the magnetic disk fixing plate 11 passes through the hole of the magnetic disk spacer 14 and the surface of the magnetic disk 12, circulates through the inside of a magnetic storage device, and it is absorbed into the hole of the magnetic disk fixing plate 11 again. That is to say, as the magnetic disk rotates, air of the upper part of the magnetic disk fixing plate is absorbed forcibly into the magnetic disk fixing plate, and the circulation of air in the magnetic storage device can be quickened. |
