| 摘要 |
<p>The unit has a frame (7) fixed on an underground, and a drive unit (14) for rotating and/or pivoting a support frame (6) relative to the frame. The support frame is pivotably provided in the frame around a vertical axis and a horizontal axis that is oriented perpendicular to the vertical axis. A horizontal pivot axis is provided in an area of a side of the support frame arranged parallel to the pivot axis. The support frame is tiltably provided in a support element that is rotatably or tiltably supported in the frame around a vertical pivot axis.</p> |
