| 摘要 |
<p>The system has a movable part and a fixed part respectively with a mechanism and a support structure, where the mechanism is fixed at the back of a truck tractor. The mechanism has a harness arm (2) with a horizontal flat bar terminated at the back by a coupling hook (3) and at a front by a vertical element. The arm is extended in front of a vertical axis (5) in a manner to present a split/cut (30) in a form of slide splayed at an end of the split.</p> |
