Disc drive having a self-adjusting turntable
AssigneeSamsung Electronics Co., Ltd.
InventorCheol-sung Yeon
Life of this patent
Estimating the term…
Abstract
A disc drive includes a motor and a turn table mounted on a shaft of the motor to be driven thereby. The turn table includes a lower drive member driven by the motor, and a positioning member mounted on the drive member. The positioning member includes a top surface on which the disc is mounted. The positioning member and drive member form a concave/convex interface, enabling the positioning member to float relative to the drive member to a position wherein the top surface (and disc) is oriented horizontally, even if the drive member becomes tilted relative to the shaft. The interface includes interengaging ridges and grooves to minimize friction and produce a positive rotary drive from the drive member to the positioning member.
Claims22
A disc drive to rotate a disc, comprising:
- a spindle motor having a vertical shaft;
- a turn table mounted on the vertical shaft of the spindle motor to be driven thereby, the turn table including
- a lower drive member driven by the spindle motor and including an upper surface, and
- an upper positioning member including a lower surface seated on the upper surface to float movement relative thereto, the positioning member including a top surface to support the disc;
- and
- a clamp to retain the disc on the top surface;
- wherein the lower surface and upper surface form a generally concave/convex interface therebetween, causing the positioning member to automatically slide upon the drive member to a position wherein the top surface remains horizontal even if the drive member and the vertical shaft become tilted.
A disc drive to rotate a disc comprising:
- a spindle motor having a shaft;
- a turn table mounted on and driven by said shaft, to support the disc in a fixed plane even as an angle between said shaft and the fixed plane changes, wherein said turnatable comprises
- a drive member engaged with and driven by said shaft, and
- a positioning member mounted on said drive member and slidable with respect to said drive member, said positioning member supporting the disc in the fixed plane even as said drive member and said shaft tilt relative to the fixed plane.
Dependencies are inferred from the claim text.