| 摘要 |
<p>A bed comprises a base (1), a frame (2), which is vertically adjustable relative to the base by means of pivot arms (3), lying members (7-9), which are adjustable relative to the frame (2) by means of second pivot arms (12, 13) and power devices on the frame for causing the pivot arms to move. The frame (2) is designed as a container generally closed at all sides, said power devices being enclosed within said container, the pivot shafts of the pivot arms extending into the interior of the container through wall portions thereof.</p> |
