Devicefor inscribing and /or reading rotating information carrier

Devicefor inscribing and /or reading rotating information carrier

  • CN 1,048,815 C
  • Filed: 04/07/1992
  • Issued: 01/26/2000
  • Est. Priority Date: 04/08/1991
  • Status: Active Grant
First Claim
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1. equipment that is used to write down and/or read a rotating information carrier, it comprisesBand is used to support the frame of the rotary table of information carrier, and this rotary table can rotate around a rotating shaft;

  • One can be between two terminal location along a path movement and be loaded with the slide plate of a scan components;

    Rack-mounted, as to be used for a slide plate guide piece;

    A stationary part and a linear electric machine unit that is fixedly mounted on the armature portion on the slide plate that has on the frame of being fixedly mounted on;

    A holding device that when equipment is in off position, the relative frame of slide plate is remained on the end position;

    It is characterized in that;

    Holding device is used for maintaining slide plate and makes slide plate inactive when equipment is in running order, but holding device comprises the compressing member of electric excitation, this part in that the armature portion with hard-wired linear electric machine unit on it compresses slide plate along the optional position of described path upper slide, and is not fixed the slide plate and the armature of installation under the state after the excitation under the state of non-excitation;

    A control module is provided, under the duty of this equipment, connection is offered first exciting current of electric motor units with the exciting electric unit, and second exciting current that will be different from first exciting current is switched on the compressing unit, make compressing unit begin to enter foment most what move along the guide piece slide plate at every turn, the basic conducting simultaneously of second exciting current and first exciting current, this second exciting current control disconnects first exciting current to electric motor units provided, and disconnect second exciting current to compressing member provided, to enter nonexcited state at each compressing member that makes at last that moves, second exciting current and first exciting current turn-off substantially simultaneously.

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