Disc driving unit and disc equipment using the same
View Patent ↗The disc-driving unit is formed of a rotor having a turntable on which a disc is mounted, a stator having a bearing housing, and a drop-guard mechanism for protecting the rotor from coming out of the stator. On the turntable, a plurality of engaging sections are integrally formed, while on the bearing housing, an engaged section is integrally formed. The engaged section has a plurality of recesses each of which has an opening width wide enough for passing through each of the engaging sections and a plurality of guides for helically guiding the engaging sections into the recesses. A helical engagement of the engaging sections and the engaged section completes the drop-guard mechanism.
1. 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.
2. The disc-driving unit as claimed in claim 1 , wherin the second engaged section contains a plurality of elastic spring sections.
3. Disc equipment having the disc-driving unit as claimed in claim 1 .
4. Disc equipment having the disc-driving unit as claimed in claim 2 .