Actuator limiters for multiple disk-stack, shared actuator hard disk drive

摘要

An actuator rotational limiter mechanism for a multiple disk-stack, shared actuator hard disk drive includes an actuator comb with a cam-lock feature and an actuator limiter with a rotatable cam-roller that is engagable with the cam-lock feature to temporarily hold in place the actuator comb. The cam-lock feature may be positioned at or near a middle location of a back arm of the actuator armature, where the actuator comb being held in place by the cam-roller corresponds to the head slider being positioned on a load/unload ramp between adjacent disk stacks.

主权项

1. A multiple disk-stack, shared actuator hard disk drive comprising:
an enclosure base; a first disk media stack rotatably mounted on a first spindle; a second disk media stack rotatably mounted on a second spindle; a head slider comprising a read/write head configured to read from and to write to a disk medium; an actuator comb configured to move said head slider to access portions of at least one disk medium of said first disk media stack and at least one disk medium of said second disk media stack, said actuator comb comprising:
an armature housing a voice coil and comprising a left arm, a right arm, and a back arm interconnecting said left arm and said right arm,a cam-lock feature; and an actuator limiter comprising:
a rotatable cam-roller that engages with said cam-lock feature and thereby temporarily holds in place said actuator comb.