| 摘要 |
PURPOSE:To prevent the decrease of a recording magnetic field to occur from the resonance phenomenon of a gimbals and the reduction of the reproducing output by sticking a shielding plate through a viscoelastic substance to the gimbals or a magnetic head. CONSTITUTION:A shielding plate as a headband shield to surround a magnetic head 2 from four corners is stuck through a viscoelastic substance 1 to a gim bals 3. Consequently, by adding the oscillation system of a shielding plate and a viscoelastic substance to the oscillation system of the gimbals 3, the viscosity coefficient of all oscillation systems can be set by the viscoelastic substance 1. The larger the viscosity resistance is, the smaller the maximum amplitude at the time of resonating becomes, and by heightening the viscosity resistance of all oscillation systems, the maximum amplitude at the time of resonating is attenuated. Thus, the decrease of the recording magnetic field and the reduc tion of the reproducing output do not periodically occur, and the performance of a magnetic disk device can be secured. |
