| 摘要 |
PURPOSE: A structure of a claw of an optical disc centering apparatus is provided to effectively prevent the deformation of a plurality of claws caused by thermal stress generated by the continuous use and the operation of an optical pickup, thereby precisely keeping the center of an optical disc fixed by the claws. CONSTITUTION: In a structure of a claw of an optical disc centering apparatus, a claw(22) is in the round shape smoothly bent in a direction. The claw is extended upwardly from an approximately center part of a turn table body and curved to a side for improving the strength without forming any folded part. The claw has a thickness(t) of 0.3-0.4mm for corresponding to the concentration of stress and for the sake of convenience of use. A distance from the center of the turn table body to an outermost part of the claw is a radius of 7.6-7.7mm. A front end of the claw is curved inwardly, and the outermost part of the claw contacts an inner periphery of an opening part in the center of an optical disc, so that the claw corresponds to the insertion or deviation of the optical disc sufficiently. A radius(r2) of curvature of the claw becomes different per position but is in the range of 3.55+1/3.55-1mm.
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