Patent ID: 8719850

Claim:
A compact disc centering apparatus of a compact disc player, comprising: a carrying roller which is disposed within a compact disc entry and a compact disc guide; a first spring hitched between a connection plate and a base plate; a pair of detection rods that rotate opposite each other in synchronization, which is disposed between a support plate and the compact disc entry; a control device which is installed on a side of the base plate and may move in a direction parallel to a path for carrying the compact disc, said movement causing a lifting control plate to move which in turn enables the support plate and the carrying roller to approach/depart from the path for carrying the compact disc; and a trigger device which is installed on the base plate and is configured to swing, under the effect of a second spring, a contact portion on one end of the trigger device having a trend of swinging in the direction toward the compact disc entry, and the trigger device being for actuating an initial movement of the control device such that the control device may be driven by a motor; wherein, an engaging portion is disposed on the control device and extends along a direction in which the control device moves, and an engaged portion is disposed on the trigger device and engages with the engaging portion; or, an engaging portion is disposed on the trigger device and extends along a direction in which the control device moves, and an engaged portion is disposed on the control device and engages with the engaging portion; wherein the engaging portion is a hole and the engaged portion is a protrusion capable of being embedded in the hole; when the engaged portion is located in the engaging portion, the contact between the engaging portion and the engaged portion makes the trigger device rotate and stop the compact disc at a position such that the center of the compact disc is coincident with that of the support plate.