US Patent 7937718 Disc device with shutter to block insertion of a disk

A disc device has a plurality of arms configured to support the outer rim of a disc carryable. Automatic loading is applied such that the disc inserted can be carried in the device, and the disc housed inside the device can be carried out of the device. A pair of shutter pieces are located on the central portion of a slot in a front bezel to be used to insert the disc therethrough and are spaced at a certain interval. The shutter piece rotates about one end thereof to raise/tumble the other end thereof. The tumbled shutter piece changes to the raised state after the disc is housed in the device while the shutter piece changes to the tumbled state before the disc housed inside the device is carried out of the device.