Brushless motor, and disk drive equipped with the same

Details Brushless motor, and disk drive equipped with the same Brushless motor, and disk drive equipped with the same

2011-06-14

2011-06-14

Blouin, Mark (Department: 2627)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Optical storage medium support

Reexamination Certificate

active

07962928

ABSTRACT:
In a brushless motor for use in a disk drive, a rotor is mounted onto a tube portion of a housing. A retaining claw is formed at an upper end of the tube portion. A turntable has a central concave portion which accommodates an upper portion of the tube portion of the housing. A retaining member is provided radially outside the central concave portion, and includes a plurality of retaining pieces extending to the inside of the central concave portion. When the rotor is mounted onto the housing, the retaining pieces come into contact with the retaining claw and then move upward. When the rotor moves upward relative to the housing, the retaining pieces come into contact with the retaining claw, thereby restricting upward movement of the rotor. Upward movement of the retaining pieces is restricted by contact between the retaining member and the turntable.

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