Patent ID: 6556376
Filing Date: 2003-04-29
Classification: G11B

Abstract:
A rotating disk data storage device, comprising:a disk drive base; a rotatably mounted disk for recording data, said disk having an axis or rotation and a circular aperture at its center for mounting said disk on a rotatable hub; a single-piece integrally-formed hub/clamp/rotor member for mounting said disk, said hub/clamp/rotor member being mounted for rotation about said axis, said hub/clamp/rotor member forming a rotor housing of a spindle motor rotor, said hub/clamp/rotor member comprising (a) a hollow cylindrical portion having an axis coincident with said axis of rotation of said disk, said hollow cylindrical portion surrounding a disk shaft and fitting within said circular aperture of said disk, (b) a support structure for supporting said disk including a flange portion extending outward from said hollow cylindrical portion, said flange portion supporting said disk, and (c) a clamp structure, said clamp structure locking said disk in place during operation of said rotating disk data storage device, wherein said clamp structure of said hub/clamp/rotor member comprises a plurality of circumferentially spaced fingers extending from said flange portion and engaging said disk; a set of rotor magnets attached to said rotor housing of said hub/clamp/rotor member; a spindle motor stator attached to said base for driving said rotor magnets; at least one transducer head for reading data stored on said disk; and a moveable actuator mounted on said disk drive base for positioning said transducer head to read data recorded on said disk.