| 摘要 |
The invention relates to an apparatus for the recording or for the reproduction of information with a drive system for a scanning device for reading or writing information in one or more tracks of a recording medium. The object of the invention is to provide a drive system for a scanning device which requires little outlay and satisfies the requirements in respect of high positioning accuracy, short access time and self-locking. According to the invention, this object is achieved by means of a drive system comprising a toothed rack arrangement Z, a straight-toothed gearwheel ZR and a worm S, without a helically toothed worm wheel being necessary. For the purpose of an engagement in the straight-toothed gearwheel ZR, the worms is arranged at an angle with respect to the axis of the gearwheel ZR, which angle corresponds to the lead of the said worm. The field of application of the invention is associated with apparatuses for the recording or for the reproduction of information with a drive system for a scanning device for reading or writing information in one or more tracks of a recording medium, such as, for example, a CD, DVD, an erasable CD or DVD or else a magneto-optical recording medium.
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