Patent ID: 8499313

Claim:
An optical disc drive, comprising: a housing comprising a bearing frame and a sliding frame arranged on the bearing frame; the bearing frame comprising a front beam, a back beam parallel to the front beam, a left beam, and a right beam parallel to the left beam; the front beam, the left beam, the back beam, and the right beam interconnected in turn to form the bearing frame; the sliding frame arranged on the inner side of the front beam; and a tray capable of sliding in and out of the housing, the tray comprising a first surface, a second surface opposite to the first surface, a first flange, a second flange parallel to the first flange, a left flange parallel to the sliding direction of the tray, a right flange parallel to the left flange; the first surface partially recessed to form a receiving space for accommodating an optical disc; wherein the front beam defines a supporting portion at the side of the left beam, and the supporting portion is adapted to support the left end of the sliding frame to prevent the sliding frame from falling downward when the tray slides in or out of the housing; the second surface defines a channel parallel to the left flange; the channel is formed by a first bar and a second bar parallel to the sliding direction of the tray, the first bar located between the left flange and the second bar, the second bar defining an opening thereof adjacent to the front flange, the opening allows the protrusion to move in and out therethrough, thus the sliding frame moves left and right with respect to the front beam.