| US 7,538,459 B2 | ||
| Disk drive device having a motor, and manufacturing method of the motor | ||
| Hiroyuki Ichizaki, Kyoto (Japan) | ||
| Assigned to Nidec Corporation, Kyoto (Japan) | ||
| Filed on Dec. 14, 2006, as Appl. No. 11/610,605. | ||
| Claims priority of application No. 2005-360483 (JP), filed on Dec. 14, 2005. | ||
| Prior Publication US 2007/0133123 A1, Jun. 14, 2007 | ||
| Int. Cl. H02K 11/00 (2006.01) | ||
| U.S. Cl. 310—67R [310/261] | 16 Claims |
| 1. A motor comprising:
a turn table having a disk loading portion arranged to allow a disk having a central opening portion to be attached thereto
and removed therefrom;
a rotor concentric with a rotation axis of the turn table, the rotor including a rotor holder having therein a rotor magnet
and a cylindrical portion arranged to retain on an outer circumferential surface thereof the rotor magnet; and
a stator having a cylindrically shaped sleeve, and an armature opposed to an outer circumferential surface of the rotor magnet
via a gap therebetween; wherein
the turn table is affixed in an axial direction on an upper portion of the rotor holder, and the disk loading portion is arranged
radially outside the cylindrical portion of the rotor holder; and
a disk loading surface of the disk loading portion is arranged to make contact with the disk, and a bottom portion of the
disk loading portion is arranged axially below an area where the turn table and the rotor holder make contact with one another.
|