| 摘要 |
PROBLEM TO BE SOLVED: To reduce as much as possible the surface wobbling of a disk body fitted and fixed in a rotary shaft by a simple structure. SOLUTION: A clamping body 1 for holding and fixing a media disk coaxially fitted in the rotary shaft of a fixed disk device associatively with a spacer is formed like an annular disk, so as to be attached to the rotary shaft. In the clamping body 1, slits 2 facing outward in a radial direction are disposed from the middle positions between the adjacent ones among a plurality of connecting screw holes 1a, provided in the middle parts of the radial direction to the outer peripheral end. Thus, since the outer peripheral part of the clamping body 1 is divided by the slits 2, the upward warping of each part obtained by division caused by a load in a connecting part is shut off and, each of these parts is laid in the cantilever and therefore, the load is divided, an entire load distribution is made uniform when the media disk is fixed, and the surface wobbling of the media disk is prevented. |
