| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate the adjustment for the tilt of a disk in the radial and tangential directions in the manner of horizontally supporting a bracket by providing a supporting means on the upper part of a stable fixing ring of a deck base for horizontally tightening a spindle motor and providing an adjusting means on the deck base for adjusting the tilt of the disk. SOLUTION: The bracket 24 to which the spindle motor 22 and a turntable 20 are fixed, is horizontally supported by stably fixing the supporting part 42 on the upper part of the stable fixing ring 40 which is formed on a through- hole 10b of the deck base 10. By mounting a tilt cam 44 and an eccentric circular cam 46 on the deck base 10 and rotating the tilt cam 44, the bracket 24 is finely adjusted in the horizontal direction to adjust the tilt of the disk in the radial direction. The upper part of the eccentric circular cam 46 is brought into contact with one surface of an oblong hole 24b of the bracket 24, and by rotating the eccentric circular cam 46, the bracket 24 is pressurized in one direction, then the tilt of the disk in the tangential direction is adjusted.</p> |
