| 摘要 |
<p>A towing device (1) for a tractor (3) and the like comprises a slideway (4) attached to the tractor rear part (2), a slide (5) carrying a pull hook (15) and being slidably mounted on the slideway (4), as well as motor means (20) including a rotary motor (21a,21b) active on the slide (5) through a mechanical drive (22a,22b) having a drive screw (23a,23b) and a female-screw (24a,24b) for moving the pull hook (15) to a selected height without physical exertion for the operator and optionally by remote control, e.g. from the tractor driver station. <IMAGE></p> |
