Actuator for a disc drive apparatus

Claim 2

In a data storage apparatus for transferring data to or from a memory device by interaction between a read/write head and the memory device, a baseplate means for supporting the memory device on the baseplate, means for supporting the read/write head on the baseplate for movement across the memory device whereby various areas of the memory device and head are permitted to interact for transferring data therebetween, an actuator for moving the head support means relative to the memory device, and elastic support means having spaced surfaces fixed respectively to the baseplate and actuator to support the actuator on the baseplate in a manner permitting limited movement between the actuator and baseplate during movement of the head supporting means for positioning the Head while limiting the transmission of vibratory forces between the actuator and baseplate.

Claim 3

A data storage apparatus as defined in claim 1 where the elastic support means is fixed to the actuator at a location near a plane passing through the center of gravity of the actuator.

Claim 4

A data storage apparatus as defined in claim 1 wherein the actuator comprises a linear motor having a stator and an armature, means for transmitting the motion of the armature to the head support means, and said elastic support means being fixed to the stator and the baseplate.

Claim 5

A data storage apparatus as defined in claim 3 wherein the elastic support means and the stator include adjacent horizontal surfaces fixed together and lying approximately in a plane passing through the center of gravity of the stator.

Claim 6

In a data storage apparatus for transferring data to or from a memory device by interaction between a read/write head and the memory device, a baseplate, means for supporting the memory device on the baseplate for movement past the read/write head, means for supporting the read/write head on the baseplate for movement across the memory device whereby various areas of the memory device and head are permitted to interact for transferring data therebetween, an actuator for moving the head support means relative to the memory device, said actuator comprising an interacting stator and armature means for transferring movement to the head support means, and means for mounting the stator on the baseplate, said stator mounting means being fixed to the stator and baseplate at points near a plane extending in the direction of movement of the head support means and passing through the center of gravity of the stator thereby to counteract any movement of the armature in a plane passing approximately through the center of gravity of the stator.

Claim 7

In a data storage apparatus for transferring data to or from a memory device by interaction between a read/write head and the memory device, a baseplate, means for supporting the memory device on the baseplate for movement past the read/write head, means for supporting the read/write head on the baseplate for movement across the memory device whereby various areas of the memory device and head are permitted to interact for transferring data therebetween, an actuator for moving the head support means relative to the memory device, said actuator comprising an interacting stator and armature means for transferring movement to the head support means, and means for mounting the stator on the baseplate, said stator mounting means being fixed to the stator and baseplate at points near a plane extending in the direction of movement of the head support means and passing through the center of gravity of the stator thereby to counteract any movement of the armature in a plane passing approximately through the center of gravity of the stator.