| US 7,576,945 B2 | ||
| Disk drive with an air flow passage within enclosure to reduce flutter | ||
| Naoaki Kanada, Kanagawa (Japan); and Kohichi Takeuchi, Kanagawa (Japan) | ||
| Assigned to Hitachi Global Storage Technologies Netherlands B.V., Amseterdam (Netherlands) | ||
| Filed on Dec. 14, 2005, as Appl. No. 11/304,398. | ||
| Claims priority of application No. 2004-376847 (JP), filed on Dec. 27, 2004. | ||
| Prior Publication US 2006/0139796 A1, Jun. 29, 2006 | ||
| Int. Cl. G11B 33/14 (2006.01) | ||
| U.S. Cl. 360—97.02 [360/254.7] | 18 Claims |
| 1. A disk drive comprising:
an enclosure having a base and a top cover fixed to said base;
a motor arranged internally of said base to rotate a recording disk;
an actuator holding a head getting access to said recording disk, said actuator being turned to thereby move the head;
a ramp slope portion which is located beside said recording disk, and on which an extreme end of said actuator is ridden up
in order to move said head outside said recording disk;
a ramp support portion configured to support said ramp slope portion; and
a stage provided in said enclosure and configured to attach said ramp support portion thereto;
wherein a flow passage configured to receive air circulating around the rotating recording disk, is defined between said ramp
slope portion and said enclosure, and an inclined surface running toward a base bottom of said base is formed on an end of
the flow passage on a side of said recording disk, and
wherein said stage is formed integral with said enclosure.
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