US Patent 7516461 Disk device

A disk device includes a disk tray movable between a closed position and an open position; and an upper case positioned above the disk loading region of the disk tray when the disk tray is at the closed position. The disk tray includes a base, a disk loading region which receives the disk, and an upward facing projection formed on a closed position side of the disk loading region. The upper case includes an upper ceiling portion, a downward facing projection that projects downward from the upper ceiling portion, and an inclined surface formed between the upper ceiling portion and the downward facing projection so as to be inclined downward in a direction toward the closed position. The upward facing projection is positioned on the closed position side relative to the downward facing projection when the disk tray is at the closed position.