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US 9,142,247 B2Granted
Spindle motor with turntable fixing member
AssigneeLG Innotek Co., Ltd.
InventorHoeop Yoon
Life of this patent
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Abstract
A spindle motor is disclosed, the spindle motor including a turntable coupled to the rotation shaft to rotate along with the rotation shaft and accommodating a disk, and a turntable fixing member coupled at an upper surface of the turntable to the rotation shaft to fix the turntable.
Claims7
A spindle motor comprising:
- a rotation shaft;
- a turntable coupled to the rotation shaft to rotate along with the rotation shaft and to support a disk;
- a center cone coupled to a portion of the rotation shaft and disposed over the turntable to move along an axis of the rotation shaft and to fix the disk, wherein a portion of the turntable opposite to the center cone is formed with a thickness thinner than that of a portion of the turntable not being opposite to the center cone, such that the turntable and the rotation shaft are coupled with a low coupling force;
- and
- a ring-shaped turntable fixing member coupled to the rotation shaft and disposed on an upper surface of the turntable to fix the turntable,
- wherein the turntable fixing member is a metal ring provided with a reinforcing frame extending from a surface of the turntable fixing member along a periphery of the rotation shaft so as to increase a coupling area between the rotation shaft and the turntable fixing member, and
- wherein the turntable fixing member is press-fitted into the periphery of the rotation shaft.
4 more elements
Dependencies are inferred from the claim text.