Patent ID: 7434238

Claim:
An optical disc apparatus for performing write or read of information in a state of changing a height position of a disc plane after chucking of an optical disc onto a turntable, comprising: a first base serving as a base of the optical disc apparatus; a second base on which a disc motor for rotationally driving said turntable is mounted and which is pivotable about a fulcrum with respect to said first base; a cam mechanism provided pivotably on the side of said first base and having a cam surface formed around and in the direction of a pivot shaft extending in substantially the same direction as a rotary shaft of said disc motor; a cam pin provided on the side of said second base and engaging the cam surface of said cam mechanism; and a cam drive section for rotationally driving said cam mechanism; wherein when the optical disc inserted into the optical disc apparatus is chucked and brought into a rotatable state, said cam drive section rotationally drives said cam mechanism, which causes an abutted portion of said cam pin against said cam surface to be displaced in a pivot shaft direction of said cam mechanism to pivotally displace said second base, thereby raising or lowering a height position of said turntable.