| 摘要 |
<p>An easy to install and self-locking hitch to tow trailers consisting by two movable pieces that can fasten to the according receiver with no tools needed. This hitch is composed by a receiver, that is fastened to the vehicle frame, and a drawbar formed by two mirror image (chiral) halves. The final three dimensional shape of the hitch is reached after the execution of an easy and simple rotational movement that fixes tightly the drawbar to the receiver.</p> |
