| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce variation in adhesive strength of a turn table and a rotor holder. <P>SOLUTION: A cone which can slide in a vertical direction with respect to an upper part of a shaft has a disc holding surface inclining downward toward the outside in a radial direction. A turn table 41 comprises a table body 5 which is molded using resin and has a disc placing portion 411, and an annular recessed portion 51 depressed upward on a lower side than the disc placing portion; a plurality of spherical bodies disposed in the annular recessed portion so as to roll; an annular blocking portion disposed between the table body and a rotor holder and blocking an opening on a lower side of the annular recessed portion; and a disc-shaped portion 63 bonded to the table body by an adhesive on an upper surface and bonded to the rotor holder by the adhesive on a lower surface, on an inner side than the annular recessed portion of the table body. <P>COPYRIGHT: (C)2013,JPO&INPIT |
