Patent ID: 7474023

Claim:
A disc-driving unit comprising: i) a rotor further including: a turntable for mounting a disc thereon; a rotor frame; and a shaft disposed on the rotor frame; ii) a stator further including: a bearing for supporting the shaft; a bearing housing for holding the bearing; a stator core with a winding thereon; and a bracket for holding the bearing housing; and iii) a drop-guard mechanism for protecting the rotor from coming out of the stator, wherein, a plurality of engaging sections are integrally formed on the turntable, the bearing housing contains an integrally formed first engaged section and a rotatably held second engaged section, each of the engaging sections and the engaged sections have a plurity of notches, and an engagement of the engaging sections, the first engaged section, and the second engaged section forms the drop-guard mechanism.