| 摘要 |
PURPOSE:To easily detect the presence or absence of harmful head touch at the shipping inspection after the completion of assembly of a magnetic disk device by fitting a vibration propagation rod provided with an electromechanical conversion element through the hole of a magnetic disk device dust-proof cover to a head fixed arm. CONSTITUTION:A tap hole is provided to the fixed arm 3 of the head 2 in opposition to the track of the magnetic disk 1 at a fine gap. A seat 7 mounting the electromechanical conversion element 15 is provided to the head of the vibration propagation rod 5 and a screw coincident with the thread hole is provided to the tip. The vibration propagation rod is inserted from the hole 10 of the dust-proof cover 9 and screwed and fixed to the tap hole of the head fixed arm. The electromechanical conversion element is adhered to the seat 7 of the vibration propagation rod and the abnormal vibration of the head fixed arm is detected. By such a constitution, the presence or absence of the harmful head touch is detected easily by the shipping inspection after the completion of assembly of the magnetic disk device.
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