Abstract: The present disclosure is directed to a disk-positioning device for use in an optical disk device that can receive and position optical disks of different sizes. Embodiments of the device comprise a substrate, a locking rod having a locking extension, a right positioning plate, a left positioning plate, a trigger arm and a sliding element. A gear rack and a spur gear are integrally formed with the left positioning plate and the right positioning plate respectively, and the spur gear and gear rack are in mesh when the optical disk device is in use. Furthermore, two locking notches are integrally formed with the right positioning plate. When the disk having a first size is loaded, the locking pin of the locking rod disengages from one of the two locking notches. When a disk having a second size is loaded, the locking rod maintains its lock with the right positioning plate.

Abstract: The present disclosure is directed to a disk-positioning device for use in an optical disk device that can receive and position optical disks of different sizes. Embodiments of the device comprise a substrate, a locking rod having a locking extension, a right positioning plate, a left positioning plate, a trigger arm and a sliding element. A gear rack and a spur gear are integrally formed with the left positioning plate and the right positioning plate respectively, and the spur gear and gear rack are in mesh when the optical disk device is in use. Furthermore, two locking notches are integrally formed with the right positioning plate. When the disk having a first size is loaded, the locking pin of the locking rod disengages from one of the two locking notches. When a disk having a second size is loaded, the locking rod maintains its lock with the right positioning plate.

Abstract: A disk-anchoring device for use in an optical disk drive to receive and locate an optical disk includes a substrate, a clamper, a clamper frame, a clamper holder, an elastic element, a frame clamper and a rack slider. The clamper frame has a first protrusion portion. The rack slider has an inclined portion and a second protrusion portion. The elastic element is elastically positioned on the substrate and can function to press down the clamper frame. When the optical disk is loaded, the rack slider can move to have the first protrusion portion of the clamper frame abut the second protrusion portion of the rack slider. The optical disk positioned in the optical disk drive can then be hold elastically and accurately by the clamper, the elastic element, and abutment between the first protrusion portion of the clamper frame and the second protrusion portion of the sliding plate.