Patent ID: 7231645
Filing Date: 2007-06-12
Classification: G11B

Abstract:
1. A disk recording and/or reproducing apparatus comprising: a disk centering member having a disk abutment assembly on one end thereof and an operating member on the other end thereof, and angularly movably supported at a portion thereof between said disk abutment assembly and said operating member by a shaft, wherein when a disk is transferred by a disk transfer mechanism and abuts against said disk abutment assembly to press said disk abutment assembly, said disk centering member is angularly moved about said shaft to allow the disk to be inserted further, and when a center of said disk arrives at a position substantially directly above a disk table, said disk centering member is prevented from being angularly moved by a stopper, positioning the disk with said disk abutment assembly; and a gear switching mechanism operable by being pressed by said operating member which is displaced by the angular movement of said disk centering member; wherein said disk abutment assembly comprising: a first disk abutment for angularly moving said disk centering member by a predetermined angular interval until the center of a first disk having a predetermined diameter moves to the position substantially directly above said disk table when said first disk is transferred and abuts against said first disk abutment; and a second disk abutment for angularly moving said disk centering member by an angular interval, which is substantially the same as said predetermined angular interval, when a second disk having a diameter different from the diameter of said first disk is transferred and abuts against said second disk abutment.