Patent ID: 6680895
Filing Date: 2004-01-20
Classification: G11B

Abstract:
A device for playing and storing several disc-shaped data carriers to be operated alternately, in particular CDs, CD-ROMs, and DVDs, with a playback unit designed for playing the data carrier and comprising a base plate (5) and a frame (6) which are coupled to one another by means of springs and/or dampers, and comprising a turntable (13) arranged on the frame (6) and designed for accommodating the data carrier and a pressure device for pressing the data carrier onto the turntable (13), while a stacking unit is provided for the intermediate storage of several data carriers, and a loading device is provided for the bidirectional transport of the data carrier between the stacking unit and the playback unit as well as for moving the data carrier into and out of the device, wherein the playback unit is movable by means of a worm gear (1) and can be locked in several positions,characterized in that the worm gear (1) comprises a continuous thread (1a) with several ranges having different thread slopes suitable for varying the speed of the translatory movements in dependence on the position of the playback unit at a constant worm gear rotation speed, or even stopping said movements completely.