Patent ID: 7293273

Claim:
A slim-type disc drive, comprising: a casing having an indentation section that accommodates a CD, and a hole that communicates an inside of the casing with an outside of the; a hinge cover which is pivotally connected to the casing, and is movable to a closed position in which the hinge cover covers up the indentation section, and is movable to an open position in which the indention section is uncovered, the hinge cover having a projection that passes through the hole, the projection having a free end that is disposed inside of the casing at all times irrespective of whether the hinge cover is in the closed position or the open position; and an elasticity element which is disposed entirely inside the casing at all times irrespective of whether the hinge cover is in the closed position or the open position, the elasticity element contacting the free end of the projection, the free end receiving an elasticity force from the elasticity element when the hinge cover covers up the indentation section; wherein the elasticity element is a torsion spring comprising a tail end through which the torsion spring applies the elasticity force onto the free end of the projection.