| 摘要 |
PURPOSE: A disk drive is provided to reduce a noise in the rotation of a disk by suppressing a turbulent flow through an expansion wall. CONSTITUTION: A disk drive includes a main base(10), a sidewall(20), and an expansion wall. The main base is inserted into a tray which receives a disk(40). The sidewall is formed on the edge of the main base. The expansion wall is formed by expanding a part of the sidewall which corresponds to both sides of the main base. The expansion wall includes the closet part to a virtual extension line of the sidewall among the edges of the disk.
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