Ramp to park read/write head and hard disk drive including the same
View Patent ↗A ramp to park a read/write head includes a fixed portion fixed to a base member of the hard disk drive, and a supporting portion to contact and support the tip-tab of the suspension assembly and includes an inclined rail surface and a horizontal rail surface which extend in a moving direction of the tip-tab, wherein a rail boundary between the inclined rail surface and the horizontal rail surface is inclined with respect to a lengthwise axis of the tip-tab. The rail boundary can be a straight line inclined at an angle with respect to the lengthwise axis of the tip-tab, or can be curved toward the horizontal rail surface or the inclined rail surface.
1. A ramp to park a read/write head of a hard disk drive, the ramp comprising:
a fixed portion fixed to a base member of the hard disk drive; and
a supporting portion to contact and support a tip-tab of a suspension assembly and comprises an inclined rail surface and a horizontal rail surface which extend in a moving direction of the tip-tab,
wherein a rail boundary between the inclined rail surface and the horizontal rail surface is inclined with respect to a lengthwise axis of the tip-tab.
2. The ramp of claim 1 , wherein the rail boundary comprises:
a straight line inclined at an angle with respect to the lengthwise axis of the tip-tab.
3. The ramp of claim 2 , wherein the angle is in a range of 30° to 60°.
4. The ramp of claim 1 , wherein the rail boundary comprises:
a convex-shaped with respect to the inclined rail surface.
5. The ramp of claim 1 , wherein the rail boundary comprises:
a convex-shaped with respect to the horizontal rail surface.
6. A hard disk drive, comprising:
a spindle motor mounted on a base member to rotate at least one disk;
an actuator rotatably coupled to the base member and comprises a suspension assembly comprising a read/write head and a tip-tab; and
a ramp disposed outside the disk and used to park the read/write head, the ramp comprising:
a fixed portion fixed to a base member of the hard disk drive; and
a supporting portion to contact and support the tip-tab of the suspension assembly and comprises an inclined rail surface and a horizontal rail surface which extend in a moving direction of the tip-tab,
wherein a rail boundary between the inclined rail surface and the horizontal rail surface is inclined with respect to a lengthwise axis of the tip-tab.
7. The hard disk drive of claim 6 , wherein the rail boundary comprises:
a straight line inclined at an angle with respect to the lengthwise axis of the tip-tab.
8. The hard disk drive of claim 7 , wherein the angle is in a range of 30° to 60°.
9. The hard disk drive of claim 6 , wherein the rail boundary comprises:
a convex-shaped with respect to the inclined rail surface.
10. The hard disk drive of claim 6 , wherein the rail boundary comprises:
a convex-shaped with respect to the horizontal rail surface.