| 摘要 |
PROBLEM TO BE SOLVED: To obtain a levitation-type floppy disk drive which prevents a disk from being damaged by an edge at a recessed part. SOLUTION: Two rails 2a, 2b protrude on a face in which a slider 1 faces a disk. When the disk is turned at high speed, the slider 1 is levitated. A head chip 6 is assembled into the rear side of one out of the rails 2a, 2b, e.g. the rail 2b. In a state that the slider 1 is levitated, a signal is recorded/-reproduced. In order to set the interval (the levitation amount) between the face of the disk and the gap of the head chip 6 to a prescribed value, slots 7a, 7b are formed nearly in central positions of the rails 2a, 2b. An angle formed by the face in which the slider 1 faces the disk and by side faces of the slots 7a, 7b is set at an obtuse angle. Thereby, it is possible to prevent the disk from being damaged by edges at the slots 7a, 7b. In addition, the depth D of the slots 7a, 7b is selected to be a value between 4 to 20μm, and the levitation amount is made proper.
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