Matsushita Electric Industrial Co., Ltd.

Hideaki Yamataka

Hidehiko Ota

Yoshinori Takada

Tsuyoshi Hashida

Seigo Matsumoto

A disk retaining mechanism that realizes a reduction of its thickness while maintaining a clamping force and a centering accuracy of the clamper, with a structure, in which: a guide ( ) is disposed in a manner to closely confront a clamper retaining member ( ); a clamper unit retaining portion of the clamper retaining member ( ) has such a shape that a part of which an entire circumference is cut out; a clamper unit for depressing a disk ( ) is provided with a disk holder ( ) having an engagement projection (M); and an annular engagement groove (F) formed in a turntable ( ) for loading the disk ( ) is arranged below an upper end of a main shaft ( ) that transfers rotation of a motor unit ( ).

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Ehime, Japan

Hideaki Yamataka