Patent ID: 7555758

Claim:
A transportation device for moving a compact disc comprising: a moving arm having a first end and a second end, with the second end transporting the compact disc; a protrusive section located on a peripheral surface of the first end; a screw bolt screwed through the first end of the moving arm, with the moving arm moving when the screw bolt rotates, with the screw bolt being spaced from and intermediate the protrusive section and the second end; and a guide track device comprising interconnecting first and second slots, with the first slot being spaced from and parallel to the screw bolt and with the second slot being spaced from the screw bolt, with the second slot being nonparallel to the screw bolt and the first slot; wherein the protrusive section of the first end of the moving arm is slidably connected to the first and second slots of the guide track device when the screw bolt rotates.