Patent ID: 7493631

Claim:
A disc drive apparatus comprising: a casing; and a disc drive unit contained in the casing, wherein the disc drive unit includes: a rotation drive mechanism which has a turntable for holding an optical disc and a spindle motor for rotatively driving the turntable, the spindle motor rotatively driving the optical disc and the turntable as a unit; an optical pick-up which radiates a light beam to a signal recording surface of the optical disc rotatively driven by the rotation drive mechanism to write/read signals on or from the optical disc; a guide mechanism which has at least one guide shaft for slidably supporting the optical pick-up to allow the same to move in the radial direction of the optical disc and guides the optical pick-up between the inner circumference and outer circumference of the optical disc, the at least one guide shaft having a distal end portion; a base which has an opening through which the turntable faces upward and another opening through which the optical pick-up faces upward, a main surface on the side of which the turntable and the optical pick-up face upward through the openings, and another main surface on the side opposite to the main surface to which the spindle motor and both end portions of the guide shaft are attached; a support plate; a spacer member; and an adjustment mechanism, wherein the spindle motor is attached to the base and between the support plate and the base with the spacer member disposed between the support plate and the base thereby assuring proper height of the turntable, wherein the spacer member has a guide slot extending to and between the base and the support plate and sized for receiving the distal end portion of the at least one guide shaft, and wherein the adjustment mechanism is associated with both the base and the support plate and contacts the distal end portion of the at least one guide shaft to move the distal end portion either toward or away from the base.