Data storage device operated for reduced sliding contact
AssigneeSeagate Technology LLC
InventorsGary Edwin Bement, Mark Andrew Chapin, Michael David Mundt
Life of this patent
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Abstract
A data storage device includes a disc stack, a rotary actuator having an arm coupled to a transducer head, and support structure for receiving the arm with a reduced incidence of sliding contact therewith. The arm is separated from the support means, and then moved so that the head is above a disc surface for storing data. After the disc stack reaches its nominal rotation speed, the head is loaded so that it can transfer data. During periods of non-activity, the head is raised (unloaded) again and the arm is placed on the support means. This reduces a risk of damage in the presence of shocks while minimizing particle generation induced by friction.
Claims21
A data storage apparatus comprising:
- a first rotary actuator having a first arm coupled to a first transducer head;
- a first disc stack comprising at least one disc having a data surface configured to be accessed by the first transducer head;
- a receiver for receiving the first arm substantially without sliding contact therewith, irrespective of a rotation of the first stack;
- and
- a secondary actuator configured to separate the first arm from the receiver by moving the arm in a direction away from the data surface.
A method of operating a data storage apparatus, the apparatus comprising a first rotary actuator, a first disc stack and a first holding shelf, the rotary actuator comprising a first arm coupled to a first transducer head, the stack comprising at least a first disc having a first data surface configured to be accessed by the first transducer head, the method comprising steps of:
- (a) rotating the disc stack;
- (b) separating the arm from the holding shelf by moving the arm in a direction away from the first data surface;
- (c) after completing the separating step (b), moving the rotary actuator until the head is above the data surface;
- (d) lowering the head toward the surface;
- (e) transferring data through the head;
- (f) raising the head away from the surface;
- (g) moving the rotary actuator so that the arm moves toward the holding shelf;
- and
- (h) resting the arm on the holding shelf.
Dependencies are inferred from the claim text.