Patent ID: 7986518

Claim:
An optical disk drive comprising: a main body defining a receiving space therein; a cover hinged to the main body; a first latching portion and a second latching portion formed on the cover; a sliding bar in the receiving space; an elastic member connecting to the sliding bar with the main body; and a button installed in the main body; wherein the first latching portion and the second latching portion are for extending into the main body to engage with the sliding bar; and wherein the button and the elastic member move the sliding bar so that the sliding bar slides to engage or disengage with the first and second latching portions to lock or unlock the cover to the main body, and first directions in which the button moves are different from the second directions in which the sliding bar slides; wherein an installing hole is defined in the main body and the button is installed in the installing hole; the button includes a top plate, a wedge-shaped piece having an inclined surface and two clipping boards; wherein the two clipping boards extend into the installing hole and engage with the main body to install the button in the main body; wherein the wedge-shaped piece extends from the top plate and extends through the installing hole with the inclined surface contacting the sliding bar; and wherein a top surface of the top plate is exposed outside of the main body so when the top plate is pressed, the wedge-shaped piece of the button also moves and applies a force on the sliding bar to cause the sliding bar to move away from the button; wherein a tube inwardly extends from the main body around a periphery of the installing hole in the receiving space; two supporting plates are formed on a distal end of the tube, each supporting plate defines a receiving hole; a slot is defined between the two supporting plates and communicates with an inner space of the tube and an inner space of the installing hole; a hollow pole extends perpendicularly from a bottom of each of the supporting plates, the inside of the two hollow poles communicate with the receiving holes of the two supporting plate respectively; the button further includes two columns located on opposite sides of the wedge-shaped piece; when the button is installed in the installing hole, the two columns are inserted into the two receiving holes to prevent the button from rotating relative to the main body, and the two clipping boards are extended through the slot by elastic deformation and hook at a free end of the tube, and the wedge-shaped piece is inserted into the slot with the inclined surface abutting against the sliding bar.