| 摘要 |
PURPOSE:To prevent the destruction of data in an other track even if the position of a head changes by prohibiting the write action of data into a disk by means of the head when the acceleration of a head supporting means which an acceleration detection means has detected exceeds the prescribed acceleration. CONSTITUTION:The head supporting means 5 which supports the head 4 writing and reading data with respect to the disk 3 and an acceleration detection means 6 detecting the acceleration which occurs by a force added to the head supporting means 5 are provided. When the acceleration of the head supporting means 5 which the acceleration means 6 has detected exceeds the prescribed acceleration, the write action of data into the disk 3 by the head 4 is prohibited. Even if the head supporting means moves and the position of the head changes when vibration and impulse are added from an external part at the time of writing data, the destruction of data in the other track can be prevented. |
