| 摘要 |
<p>The door panel (1) is guided along horizontal rails (6) for opening and closing by an electric drive mechanism. At least one rail has a flexible toothed belt or chain (13) The drive motor (8) has a drive wheel guided along the rail and around which the chain or belt grips. The drive wheel positively locks and or frictionally locks with the chain or belt. A guide roller (15) runs along the chain or belt. The drive motor is joined to the door-leaf by means of a connecting element in the form of a linked connection (19,20).</p> |
