Isolation of Actuator Arm From Coil in a Disk File Voice Coil Motor for Reduction of Radial Resonances
Original Publication Date: 1986-Aug-01
Included in the Prior Art Database: 2005-Mar-09
In a data recording disk file which uses a voice coil motor (VCM) as a linear actuator for moving the read/write head to the selected data tracks, the movable coil is attached to a carriage/arm assembly which supports the read/write heads and moves through a fixed magnetic armature assembly. The carriage/arm assembly is attached to the coil along the central axis of the coil, which corresponds to the direction of track accessing, by a central column and to the coil periphery by side braces. The primary force component is transmitted to the carriage/arm assembly through the central column along the central axis of the coil.