| 摘要 |
The support wheel (29) with steering mechanism rolls against a furrow in the ground to steer the processing unit (4), and the frame structure (16,20) comprises partly a fixed part (16) connected to the front (2) of the tractor (1), and partly a section (20) which is movable and connected cross-ways to the direction of forward travel of the tool (3). This second part supports the processing unit (4) and the support wheel (29). The movable part (20) of the frame is suspended and guided by a wheel arrangement (25) in relation to the fixed frame part (16). In this wheel arrangement, guide wheels roll towards guide beams (14,15) on the fixed frame part (16). The wheel arrangement has blunt conical wheel parts which in pairs roll towards the guide beams (14,15) standing on their longitudinal edges in the fixed frame part. |
