| 摘要 |
PURPOSE:To hold a magnetic head and a magnetic disk at a proper interval with safety by fitting a piezoelectric element to the arm fitting part of a negative pressure type magnetic head slider, applying an exciting voltage to the piezoelectric element when the magnetic disk attains to a specific rotating speed and displacing the magnetic head slider, and loading the magnetic head onto the magnetic disk. CONSTITUTION:The support spring 7 of the negative pressure type slider 1 is fixed to an arm 8 and the piezoelectric element 9 is fitted between this spring 7 and arm 8. When the magnetic disk 6 stops, the negative pressure type slider 1 is installed at safe distance of 0.1-0.5mm. from a magnetic disk surface without contacting. When the magnetic disk 6 is driven and enters steady rotation, the piezoelectric element 9 is excited electrically in an impulsive or oscillatory state to cause displacement corresponding to the piezoelectric element, thereby moving the negative pressure type slider 1 within the distance Ho of selfloading. |
