Patent ID: 6643251
Filing Date: 2003-11-04
Classification: G11B

Abstract:
A disc drive apparatus for performing recording and/or reproduction from a disc-shaped recording medium, said disc drive apparatus comprising:drive means for rotating the disc-shaped recording medium, which is placed at one side of the disc-shaped recording medium, a body for accommodating the drive means, in which a top plate of a body is at the other side of and in close proximity to the disc-shaped recording medium, and wherein the top plate is provided with air passages formed therein that extend in radial directions from the disc-shaped recording medium, and wherein the top plate is formed with punch-out portions that extend from inside end positions corresponding to a central portion of the disc-shaped recording medium to outside end positions corresponding to a peripheral portion of the disc-shaped recording medium; a sheet-like outer cover that entirely covers the punch-out portions and is fixed to a top surface of the top plate; a sheet-like inner cover that covers portions of the punch-out portions excluding inner end portions and outer end portions thereof and is fixed to an inside surface of the top plate; and portions of the punch-out portions that are covered with two covers form said air passages.