| 摘要 |
PURPOSE: An optical disk drive is provided to electrically disconnect a spindle motor which is a rotational driving body, from a pickup base which is a straight-line reciprocal mobile body, to remarkably reduce RF noise between the spindle motor and the pickup base, thereby decreasing an error rate. CONSTITUTION: A spindle holder(170), a spindle bracket(180) mounted with a spindle motor(118) thereon, and rings(192) are sequentially disposed under a main base(130). Screws(190) couple the spindle holder(170), the spindle bracket(180), and the rings(192) together. A boss(172) is extended in the spindle holder(170) in a direction that the spindle bracket(180) is assembled. A stepped pulley for setting the spindle bracket(180) thereon is formed in a part where the boss(172) is contacted with the spindle bracket(180).
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