Patent ID: 6549491
Filing Date: 2003-04-15
Classification: G11B

Abstract:
A disc player comprising:a chassis; a slide base supported on the chassis so as to be movable in forward and backward directions between a disc exchange position and a disc store position, the slide base capable of holding a disc as a recording medium thereon; a clamp mechanism for clamping a disc to be played at a disc play position; a planetary gear mechanism for alternatively causing the movement of the slide base in forward and backward directions and a clamping operation by the clamp mechanism with a single drive source, said planetary gear mechanism including a sun gear rotatably mounted on said chassis and driven by said drive source, a planetary gear rotated by a drive force transmitted from said sun gear, and a rotary member provided with said planetary gear and mounted on said chassis such as to be rotatable around a center axis of said sun gear; a linear rack gear formed on a bottom face of said slide base, said slide base being moved in forward and backward directions by rotation of said planetary gear in engagement with said linear rack gear; and a first arcuate rack gear formed in said chassis at a position such that it locates adjacent said linear rack gear when said slide base is located at the disc store position so as to allow said planetary gear to engage therewith consecutively from the linear rack gear, the clamping operation of a disc by said clamp mechanism being performed by a revolving movement of said planetary gear in engagement with the first arcuate rack gear.