| 摘要 |
PURPOSE:To stabilize the flexible disk of the rotation time under non-contact state to anstabilizing member, to eliminate the rotation unevenness of a sheet and to stabilize the contact of a head and sheet by providing the slope for positive pressure generation that the head is inclining toward the relief bottom part in the vicinity of the head relief groove parts of the upper and down stream sides in the disk rotating direction of the stabilizing member. CONSTITUTION:At the time of rotation of a disk 1, a proper positive pressure is caused by a slope 51f at the upper stream side and at the downstream side, a positive pressure is caused by the slope 51d, so the disk is pressed to the direction apart from a stabilizing member 51, namely to the lower part in the figure, and the fear of the contact becomes eliminating at both the upper stream and downstream sides. And in this case, the positive pressure acts on the disk 1 at the part of the upper and lower stream both ends of the recessed groove part 51c of the disk 1, namely the vital part approximately of the deformation due to the projection of the head 4. In this way the prevention of the contact of the disk 1 and stabilizing member 51 can more effectively be achieved.
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