Abstract: An apparatus for clamping both large and small disks is provided, including a disk tray inside a base, an upper case and two clamping mechanisms above the disk tray and the base. Each clamping mechanism includes a slider and a gripper structure. The gripper structure further includes a first gripper, a second gripper, and a resilient element located between the first and the second grippers. The second gripper includes a first belt-ring and a second belt-ring. When the disk is loaded, under the force of the resilient element, the first belt-ring and the second belt-ring hold the disk onto the disk tray firmly. When the first gripper moves to a specific position of the groove on the upper case, the first gripper causes the second gripper to rotate so that the resilient element stops to exert the force. Hence, the first belt-ring and the second belt-ring rotate upwards so as to complete the loading process.

Abstract: An apparatus for clamping both large and small disks is provided, including a disk tray inside a base, an upper case and two clamping mechanisms above the disk tray and the base. Each clamping mechanism includes a slider and a gripper structure. The gripper structure further includes a first gripper, a second gripper, and a resilient element located between the first and the second grippers. The second gripper includes a first belt-ring and a second belt-ring. When the disk is loaded, under the force of the resilient element, the first belt-ring and the second belt-ring hold the disk onto the disk tray firmly. When the first gripper moves to a specific position of the groove on the upper case, the first gripper causes the second gripper to rotate so that the resilient element stops to exert the force. Hence, the first belt-ring and the second belt-ring rotate upwards so as to complete the loading process.

Abstract: An aligning and clipping apparatus for slot-in CD/DVD players/ROM to load different size discs is provided, including a base, a tray, at least two moveable clipping elements, at least two ejection elements, and an auxiliary clipping element. Two clipping elements are installed at the front end of the tray for loading and clipping the disc. The auxiliary clipping element is on the top of the base for improving the stability of the clipping. The ejection elements are at the two sides of the rear end of the tray for ejecting the clipping of the disc so that the disc is in the position for data reading and writing. To achieve the function for clipping different size discs, the moveable clipping elements are placed at a specific angle and a specific curvature. Therefore, the different size discs can be clipped and held.

Abstract: An aligning and clipping apparatus for slot-in CD/DVD players/ROM to load different size discs is provided, including a base, a tray, at least two moveable clipping elements, at least two ejection elements, and an auxiliary clipping element. Two clipping elements are installed at the front end of the tray for loading and clipping the disc. The auxiliary clipping element is on the top of the base for improving the stability of the clipping. The ejection elements are at the two sides of the rear end of the tray for ejecting the clipping of the disc so that the disc is in the position for data reading and writing. To achieve the function for clipping different size discs, the moveable clipping elements are placed at a specific angle and a specific curvature. Therefore, the different size discs can be clipped and held.

Abstract: A CD player loading apparatus is provided, including a tray, a base, and a clipping set. The clipping set includes two fixed clipping element and a moveable clipping element. The tray is located at the top part of the base for loading and ejecting the CD. The tray is shortened so that the clipping set is used to compensate the original loading stability. The shortened tray hides inside the base during loading and ejecting the CD. Therefore, the clipping set clips to hold the CD when the CD enters the base, and moves the CD to the correct position for data access. The fixed clipping elements are located on the tray and the moveable clipping element is on the front part of the base. The moveable clipping element turns along the edge of the CD when the CD loads or ejects the CD from the base.

Abstract: A device for reducing backlash of the transmission set of the optical pickup head of an optical disk device is provided. The device includes a guide rod penetrating an optical pickup head and a rack. The rack is engaged to a gear. The gear is driven by a motor so that the optical pickup head and the rack moves straight along the guide rod. The optical pickup head includes an elastic element. The elastic element apply a force to the rack so that the rack rotates around the guide rod and moves closer to the root of the gear to reduce the backlash between the gear and the rack and improve the partial deformation of the end of the rack due to the weak structure.