DISK CENTERING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a disk centering device by which the accuracy of centering is increased to secure uniform data recording quality for each disk by centering the disks and by biasing spacers and by which the vibration problem of a rotor is minimized in a simple structure. SOLUTION: The disk centering device contains: a base plate; a chuck provided on the base plate; a hub unit demountably connected to the chuck and having the plurality of stuck disks and spacers; a plurality of disk pushers slidably provided at the exterior of the hub unit and having a pressing member pressing the outer diameters of the plurality of disks for centering; a driving means for sliding the plurality of disk pushers; and a plurality of biasing units slidably provided at the exterior of the hub unit and pressurizing outer diameters of the plurality of spacers for biasing. COPYRIGHT: (C)2004,JPO&NCIPI