Patent ID: 8424027

Claim:
An optical disc drive, comprising: a housing having a protruding pin; an optical head engaged to a lead screw; a tray slidably disposed in the housing; and a tray locking device disposed on the tray, the tray locking device comprising: a pushing member, wherein the pushing member and the optical head are driven by the lead screw to move; a latching hook adapted to latch and release the protruding pin; and a transmission assembly disposed between the pushing member and the latching hook, wherein the transmission assembly has a driving portion disposed on a moving path of the pushing member, and the pushing member is adapted to push the driving portion so that the transmission assembly is actuated and drives the latching hook to release the protruding pin; wherein the lead screw is divided into a reading segment and a loading segment by the driving portion, wherein when a disc is to be read, the lead screw drives the pushing member and the optical head to move in the reading segment, and wherein when the tray is to be ejected, the lead screw drives the pushing member to move to the loading segment and then the lead screw drives the pushing member to move back to the reading segment.