Disc driver and rotating platform

Application Number: 00108296
Application Date: 2000.03.31
Publication Number: 1268750
Publication Date: 2000.10.04
Priority Information: 1999/3/31 JP 093032/99
International: G11B33/12;G11B25/04
Applicant(s) Name: Sony Corp.
Inventor(s) Name: Shiomi Tetsuyo;Morishita Tomoaki
Patent Agency Code: 11105
Patent Agent: li xiaoshu
Abstract There is a problem that a high fitting accuracy between the table body and a chucking ring of a turntable is requested because the table body and the chucking ring are separately constituted and the chucking ring is integrated with the table body by fitting the ring to the body. The present invention relates to a disk drive comprising a turntable (47) on which an optical disk (33) used to reproduce an information signal is mounted and a spindle motor (51) to whose rotating portion the turntable (47) is set. The turntable (47) is provided with a mounting portion (47a) on which the optical disk (33) is mounted and a fitting portion (47b) to be fitted to the center hole (33a) of the optical disk (33) and having an elastic piece (14b) to be pressure-welded to the inner periphery of the center hole (33a), in which the mounting portion (47a) and the fitting portion (47b) are formed into one body.