| 摘要 |
In a speed regulator for displaceable objects such as sliding doors or gates, in particular sliding fire doors or gates, which have support wheels 13 and bearing or support rails interacting therewith, and the speed of movement of which is regulated by means of a mechanism with a brake, for example an eddy current brake 15 with a number of magnets with changing polarity which interact with a brake disc 11a which is mounted on a spindle, via which it is acted on via a band drive 14, 14b, for example in the form of a chain or a wire, depending on the speed of movement of the door or gate in such a manner that said speed of movement is reduced when it exceeds a given, preferably adjustable value, the band drive being drive-actuated by a drive member 12 which is directly coupled to a support wheel 13 for the door leaf. <IMAGE>
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