US Patent 7559069 Optical disc device

A tray unit is slidably attached to a frame. The tray unit comprises a disc tray which slides with respect to the frame, and a pickup unit supported by a damper to the disc tray. The pickup unit includes a shutter for closing an opening through which an optical pickup is exposed when the disc tray is drawn out of the frame. The shutter is opened or closed according to a condition of contact between a tip of a shutter opening/closing lever projecting from a side wall of the disc tray and a cam fixed on the frame.