Patent ID: 6449238
Filing Date: 2002-09-10
Classification: G11B

Abstract:
A skew adjustment mechanism for an optical pick-up used in an optical disc drive, the optical pick-up being provided in the disc drive freely movable in a radial direction of an optical disc along only one fixedly and unmovably provided single guide rod for playing back or recording and playing back to the optical disc, wherein the skew adjustment mechanism comprises:a tangential skew adjusting means for adjusting tangential skew of the optical pick-up after the optical pick-up has been assembled into the disc drive wherein the optical pick-up includes a pick-up base having a first end and a second end opposite to the first end, the first end being slidably connected to the guide rod, and the tangential skew adjusting means includes a displacement means provided on the second end of the pick-up base for rotationally displacing the pick-up base about an axis of the guide rod and further wherein the second end of the pick-up base includes a bottom surface, in which the displacement means includes a screw which vertically passes through the second end of the pick-up base such that a lower end portion of the screw protrudes from the bottom surface of the pick-up base and a sliding surface positioned a prescribed distance below the bottom surface of the second end of the pick-up base so that the lower end portion of the screw is in contact with the sliding surface, whereby the pick-up base can be displaced by adjusting the protruding length of the lower end portion of the screw.