| 摘要 |
Device to provide a correct working position, having a base frame (1) with castors (3) and a lifting frame (2) in between which a scissors-like device (6, 7, 9, 11, 12) and a lifting device (10, 20, 21) are provided. A seat (13) and a swivelling backrest (14) are mounted to the lifting frame (2). The backrest (14) is adjustable at an angle to the lifting frame (2) with the help of a locking and lifting device (15, 16, 17, 18, 19). The base frame (1) can be stabilized to the floor with the help of stabilizers (26). |
