Disk drive including a shroud configured to overlap an actuator for removing debris from a head-slider
View Patent ↗A disk drive. The disk drive includes a head-slider, an actuator, a ramp and a shroud. The head-slider is configured to fly above the disk. The actuator is configured to support the head-slider and to swing about a pivot shaft to move the head-slider in a radial direction of the disk. The actuator may also be configured to rest on the ramp in a stand-by position. The shroud includes an inner peripheral side surface and an outer peripheral side surface. The shroud is configured to control an air-stream which flows in a direction from the pivot shaft toward the head-slider. The inner peripheral side surface and the outer peripheral side surface are configured to blast the head-slider with the air-stream upon spinning the disk when the head-slider is positioned away from the disk in the stand-by position.
1. A disk drive comprising:
a head-slider, said head-slider configured to fly above a disk;
an actuator, said actuator configured to support said head-slider and to swing about a pivot shaft to move said head-slider in a radial direction of said disk;
a ramp on which said actuator is configured to rest in a stand-by position; and
a shroud comprising an inner peripheral side surface and an outer peripheral side surface, said shroud having a portion where spacing between said inner peripheral side surface and said outer peripheral side surface decreases in a direction from said pivot shaft toward said head-slider and configured to control an air-stream which flows in a direction from said pivot shaft toward said head-slider, wherein said inner peripheral side surface and said outer peripheral side surface are configured to blast said head-slider with said air-stream upon spinning said disk when said head-slider is positioned away from said disk in said stand-by position,
wherein at least a portion of at least one of said inner peripheral side surface and at least a portion of said outer peripheral side surface is configured to overlap said actuator at said stand-by position as viewed in a direction of said pivot shaft.
2. The disk drive of claim 1 , wherein said shroud further comprises a bottom surface which connects said inner peripheral side surface and said outer peripheral side surface, between said inner peripheral side surface and said outer peripheral side surface.
3. The disk drive of claim 2 , wherein said bottom surface has a contour which is shaped so as to direct said air-stream toward said head-slider.
4. The disk drive of claim 1 , wherein said shroud further comprises a disk-facing surface which is located closer to an outer circumferential edge of said disk than is said inner peripheral side surface and faces said outer circumferential edge of said disk.
5. The disk drive of claim 1 , wherein said head-slider, when located at said stand-by position, is located at a position disposed between said outer peripheral side surface and said inner peripheral side surface as viewed in a direction of said pivot shaft.
6. The disk drive of claim 1 , wherein an in-take end of said inner peripheral side surface is located closer to said head-slider than an in-take end of said outer peripheral side surface.
7. The disk drive of claim 1 , wherein said ramp is located ahead of a distal end of said actuator and comprises a ventilation hole through which said air-stream passes; and an air filter is placed ahead of said ventilation hole.
8. A disk drive comprising:
a head-slider, said head-slider configured to fly above a disk;
an actuator, said actuator configured to support said head-slider and to swing about a pivot shaft to move said head-slider in a radial direction of said disk;
a ramp on which said actuator is configured to rest in a stand-by position; and
a shroud comprising an outer peripheral side surface, said shroud configured to control an air-stream which is caused to flow in said direction from said pivot shaft toward said head-slider, wherein said outer peripheral side surface is configured to blast said head-slider with said air-stream upon spinning said disk when said head-slider is positioned away from said disk in said stand-by position,
wherein said outer peripheral side surface is located further away from a circumferential edge of said disk than is a center line of said head-slider at a position closest to a virtual line drawn along a leading edge of said head-slider, and at least a portion of said outer peripheral side surface is configured to overlap said actuator at a position closer to said pivot shaft than said virtual line as viewed in a direction of said pivot shaft.
9. The disk drive of claim 8 , wherein said outer peripheral side surface is elongated around said outer periphery of said head-slider.
10. The disk drive of claim 8 , wherein said outer peripheral side surface has a contour which is shaped so as to direct said air-stream toward said head-slider.
11. The disk drive of claim 8 , wherein said ramp is located ahead of a distal end of said actuator and comprises a ventilation hole through which said air-stream passes; and an air filter is placed ahead of said ventilation hole.