| 摘要 |
<p>A towing platform is mounted in the truck tractor structure. A piston rod fixed to the front or lower portion of a tow is connected to the towing platform without the possibility of relative turning between the platform and tow. The platform is provided in the vertical axis with bearings that allow free turning of the platform relative to the truck tractor structure. A disc that is fixed axially incorporates a brake gear to prevent free turning of the platform about the vertical axis.</p> |
