Patent ID: 7725908

Claim:
An optical disk apparatus, comprising: a housing; a tray being insertable into said housing; a lock member provided on said housing; and an ejection lock mechanism, provided on said tray, for locking when inserting said tray into said housing and for ejecting when carrying out said tray from said housing, wherein said ejection lock mechanism provided on said tray comprises: a lock arm for locking said tray by way of engagement with said lock member provided on said housing; a drive arm, in contact with said lock arm, for moving said lock arm to a position of being engaged with or disengaged from said lock member; a solenoid having a movable plunger engaged with said drive arm; and a reset arm for restoring the movable plunger of said solenoid, further wherein, said reset arm consists of a single member having a drive arm portion and an elastic portion, wherein during movement of the tray to an outside of the housing, the elastic portion biases the drive arm portion to a predetermined position after the drive arm portion separates from the lock member, wherein during movement of the tray to an inside of the housing, the drive arm portion rotates from the predetermined position in a direction that causes the drive arm to rotate away from the lock arm to allow the lock arm to reengage with the lock member, and to restore the movable plunger in the solenoid.