Patent ID: 7594240
Filing Date: 2009-09-22
Classification: G11B

Abstract:
1. A disk drive apparatus comprising: a casing comprising a front panel in which a substantially rectangular disk insertion/withdrawal portion is provided; a disk carrying mechanism comprising a plurality of rotational arms to hold the outer circumference of an optical disk therebetween and a biasing member to bias the plurality of rotational arms in a predetermined direction in accordance with a carrying position of the optical disk, the disk carrying mechanism carrying the optical disk between a disk insertion/withdrawal position, where the optical disk undergoes an insertion/withdrawal operation with respect to the disk insertion/withdrawal hole of the front panel, and a disk loading position, where the optical disk which has been inserted into the casing is loaded; a disk loading portion to which the optical disk which has been carried within the casing is loaded; a disk rotation drive mechanism to rotationally drive the optical disk which has been loaded at the disk loading portion; an optical pick-up to perform recording and/or reproduction of information signals with respect to the optical disk rotationally driven by the disk rotation drive mechanism; and a pick-up feed mechanism to allow the optical pick-up to undergo feed operation in a radial direction of the optical disk, wherein a slide contact piece caused to be slidably in contact with the optical disk is provided at the disk insertion/withdrawal hole to thereby limit projection quantity of the optical disk, wherein the slide contact piece being provided at both end portions in a length direction respectively and are adapted to be slidably in contact with the outer circumferential surface of the optical disk; wherein these two slide contact pieces have friction coefficients different from the optical disk.