| 摘要 |
An optical disk drive includes a spindle motor for rotating an optical disk, and an optical pickup head. On a base plate, a pickup moving motor moves the optical pickup head in a disk radial direction. A motor plate supports the spindle motor. A spacer holder has a small thickness, and is secured to the base plate. A spacer boss is disposed to project from the spacer holder toward the motor plate. A first hole is formed through the spacer boss. A retaining screw has first and second shaft portions. A screw hole is formed in the base plate, for engagement with the first shaft portion inserted through the first hole, to retain the retaining screw. A great diameter peripheral surface is positioned at the second shaft portion, for applying pressure to fit the spacer boss tightly on the motor plate. Further, the spacer is formed from plastic material.
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