| 摘要 |
A rotary tray having a plurality of disk mounting sections is pivotally supported by a central shaft arranged on a tray support face of a casing, a rim protruding from a lower face of the rotary tray is movably set on a sliding face block arranged in an outer circumferential section of the tray support face, and disk mounted on a desired disk mounting section is opposed to an optical pickup when the rotary tray is intermittently rotated by a predetermined angle, and the sliding face block is engaged in a space formed between a recess step circumferential face, which is formed along an inner edge of an outer circumferential section of the tray support face, and a support frame integrally formed in the outer circumferential section and being opposed to the recess step circumferential face.
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