Patent ID: 8424028

Claim:
A tray locking device of an optical disc drive, adapted to lock and release a tray, wherein the optical disc drive has an optical head engaged to a lead screw and driven to be moved by the lead screw, the tray locking device including: a pushing member, disposed on the optical head; a first stop portion, disposed on the tray; a latching hook, adapted to latch and release a pin; and a transmission assembly, disposed between the pushing member and the latching hook, and comprising a lever element and a weight block, wherein the lever element is movably disposed in the tray and has a second stop portion, and the first stop portion and the second stop portion is adapted to be coupled with each other; wherein when the tray is to be ejected, the pushing member pushes the lever element and enters a loading segment of the lead screw; wherein when the optical disc drive is subjected to an impact, the weight block pushes the lever element, such that the first stop portion and the second stop portion are coupled with each other.