Vertically translating load/unload ramp mechanism for cold storage data storage device
An approach to a reduced-head hard disk drive (HDD) involves a load/unload (LUL) ramp subsystem that includes a ramp assembly that includes a rotatable latch link configured for mechanical interaction with a head-stack assembly (HSA) and a LUL ramp coupled with the latch link, configured such that in response to a force applied to the latch link by the HSA, the latch link rotates which disengages a magnetic latch and drives the LUL ramp to rotate into an operational state disengaged from any recording disk of a multiple-disk stack. The subsystem may further include a motor configured to drive rotation of a lead screw to which the ramp assembly is attached, to drive vertical translation of the ramp assembly, thereby providing for loading the vertically-translatable HSA onto and off of each of the disks of the disk stack.
1. A method for vertically translating a load/unload (LUL) ramp mechanism in a hard disk drive (HDD) to provide access to each of a plurality of recording disks, the method comprising:
driving a stepper motor to rotate a lead screw coupled to the stepper motor; and
allowing a LUL ramp mechanism that is coupled with the lead screw to translate vertically in response to rotating the lead screw, wherein allowing the LUL ramp mechanism to translate comprises: providing one or more guide rails configured to interface with a respective corresponding interface of the LUL ramp mechanism; providing a first interface constituent to a latch link component of the LUL ramp mechanism, wherein the first interface is positioned around a first guide rail of the one or more guide rails.
2. The method of claim 1 , wherein allowing the LUL ramp mechanism to translate further comprises: providing a second interface constituent to a base component of the LUL ramp mechanism, wherein the second interface is positioned around a second guide rail of the one or more guide rails.
3. The method of claim 2 , wherein allowing the LUL ramp mechanism to translate further comprises:
providing a third internally threaded interface constituent to the base component and positioned around the lead screw.
4. The method of claim 2 , wherein allowing the LUL ramp mechanism to translate further comprises:
providing a bushing for at least one of the first interface and the second interface.
5. The method of claim 2 , wherein allowing the LUL ramp mechanism to translate further comprises:
providing a linear bearing for at least one of the first interface and the second interface.
6. The method of claim 1 , further comprising:
while the LUL ramp mechanism is translating, determining the vertical position of the LUL ramp mechanism.