Sloping transition on a ramp of a hard disk drive
View Patent ↗Certain aspects of the present disclosure provide a ramp for a hard disk drive. The HDD ramp generally includes a ramp body having a head separator fin, a gimbal limiter adjacent to the head separator fin which is thicker than the head separator fin, and a first chamfer at a transition between a first surface of the gimbal limiter and a first surface of the head separator fin. A hard disk drive including such a HDD ramp and a method for using the HDD ramp are also disclosed.
1. A ramp for a hard disk drive (HDD), comprising:
a ramp body comprising a head separator fin, a gimbal limiter adjacent to the head separator fin which is thicker than the head separator fin, and a first chamfer at a transition between a first surface of the gimbal limiter and a first surface of the head separator fin.
2. The ramp of claim 1 , wherein the ramp is formed of a monolithic body.
3. The ramp of claim 2 , wherein the ramp comprises plastic.
4. The ramp of claim 3 , wherein the plastic comprises polytetrafluoroethylene (PTFE).
5. The ramp of claim 1 , wherein the first chamfer is disposed at an angle between 120 and 150 degrees to the first surface of the head separator fin.
6. The ramp of claim 5 , wherein the first chamfer is disposed at an angle between 130 and 140 degrees to the first surface of the head separator fin.
7. The ramp of claim 1 , wherein the ramp body has a plurality of head separator fins, a plurality of gimbal limiters with each gimbal limiter adjacent to a corresponding head separator fin and thicker than the corresponding head separator fin, and a chamfer at each transition between a first surface of each gimbal limiter and a first surface of the corresponding head separator fin.
8. The ramp of claim 1 , wherein the ramp body has a second chamfer at a transition between a second surface of the gimbal limiter and a second surface of the head separator fin.
9. A hard disk drive (HDD) comprising:
a magnetic disk;
an actuator to move a head over the magnetic disk; and
a ramp, wherein the ramp comprises a ramp body comprising a head separator fin, a gimbal limiter adjacent to the head separator fin which is thicker than the head separator fin, and a first chamfer at a transition between a first surface of the gimbal limiter and a first surface of the head separator fin.
10. The HDD of claim 9 , wherein the ramp is formed of a monolithic body.
11. The HDD of claim 10 , wherein the ramp comprises plastic.
12. The HDD of claim 11 , wherein the plastic comprises polytetrafluoroethylene (PTFE).
13. The HDD of claim 9 , wherein the first chamfer is disposed at an angle between 120 and 150 degrees to the first surface of the head separator fin.
14. The HDD of claim 13 , wherein the first chamfer is disposed at an angle between 130 and 140 degrees to the first surface of the head separator fin.
15. The HDD of claim 9 , wherein the ramp body has a plurality of head separator fins, a plurality of gimbal limiters with each gimbal limiter adjacent to a corresponding head separator fin and thicker than the corresponding head separator fin, and a chamfer at each transition between a first surface of each gimbal limiter and a first surface of the corresponding head separator fin.
16. The HDD of claim 9 , wherein the ramp body has a second chamfer at a transition between a second surface of the gimbal limiter and a second surface of the head separator fin.
17. A method for preventing damage to a head gimbal assembly of a hard disk drive (HDD), comprising:
parking a head of an HDD on a ramp of the HDD, wherein the ramp comprises a ramp body comprising a head separator fin, a gimbal limiter adjacent to the head separator fin which is thicker than the head separator fin, and a first chamfer at a transition between a first surface of the gimbal limiter and a first surface of the head separator fin.
18. The method of claim 17 , wherein the ramp is formed of a monolithic body.
19. The method of claim 17 , wherein the ramp body has a plurality of head separator fins, a plurality of gimbal limiters with each gimbal limiter adjacent to a corresponding head separator fin and thicker than the corresponding head separator fin, and a chamfer at each transition between a first surface of each gimbal limiter and a first surface of the corresponding head separator fin.
20. The method of claim 17 , wherein the ramp body has a second chamfer at a transition between a second surface of the gimbal limiter and a second surface of the head separator fin.