Patent ID: 8146112

Claim:
An optical disk transport device for optical disk playing device comprising: at least one optical disk guiding device ( 7 ) located at the optical disk insertion inlet ( 5 ); a delivery roll ( 27 ) located at the optical disk insertion inlet ( 5 ) and located at the position opposite to the optical disk guiding device ( 7 ); a pair of detection bars ( 10 , 11 ) provided with detection parts ( 10 a , 11 a ) contacting the periphery of the optical disk inserted from the optical disk insertion inlet ( 5 ), and the detection bars ( 10 , 11 ) being capable of freely rotating around respective rotary pivots; a linkage plate ( 13 ) for controlling the pair of detection bars ( 10 , 11 ) to move together; at least one elastic part ( 14 ), the elastic part ( 14 ) making the detection bars ( 10 , 11 ) to rotate according to the direction that makes the detection parts ( 10 a , 11 a ) to contact the periphery of the optical disk; and an optical disk baffle ( 15 ) located in the optical disk playing device at the side away from the optical disk insertion inlet ( 5 ), while a small diameter optical disk being held by the delivery roll ( 27 ) and the optical disk guiding device ( 7 ), along with the rotating of the delivery roll ( 27 ), as the center of the small diameter optical disk passing the center of a plummer ( 12 ), the optical disk baffle ( 15 ) contacting the periphery of the small diameter optical disk to stop the transport of the small diameter optical disk; characterized in that the detection parts ( 10 a , 11 a ) of the pair of detection bars ( 10 , 11 ) are located between the delivery roll ( 27 ) and the plummer ( 12 ), wherein the pair of detection bars ( 10 , 11 ) are provided with long arms and short arms of L shape; the front end of the long arms are provided with the detection parts ( 10 a , 11 a ) contacting the periphery of the optical disk, and the front end of the short arms are provided with first slotted holes ( 10 b , 11 b ); the curved parts of the L shape are provided with rotary pivots ( 10 c , 11 c ); at the initial position, the space between the two detection parts ( 10 a , 11 a ) is a little smaller than the diameter of the small diameter optical disk; the linkage plate ( 13 ) is fixed to an upper base plate ( 2 ) of the optical disk playing device; the upper base plate ( 2 ) is provided with a first guiding hole ( 2 a ) and a second guiding hole ( 2 b ) to make the linkage plate ( 13 ) to move in parallel according to the optical disk transport path; the central part of the linkage plate ( 13 ) is provided with embedding parts ( 13 b ) capable of separately cooperating with the two guiding holes ( 2 a , 2 b ).