| 摘要 |
<p>IN THE PATENT AND TRADEMARK OFFICE PATENT APPLICATION entitled : DRAINAGE MACHINE WITH A BREAKING UP TOOTH in the name of : Gilles PELSY The invention relates to a drainage machine comprising a structure and a working equipment comprising a breaking up tooth mounted on a support and a system of arms connecting the support to the structure. The system of arms comprises first, second and third arms forming with the support a quadrilateral with the articulation of the first arm to the support, to the second arm and to the structure, the second arm to the third arm and the third arm to the support by interarticulated fourth and fifth arms. The fourth arm is articulated to the third arm, the fourth arm to the structure and by a hydraulic jack coupled to the third and fourth arms. One application is to the construction of a robust machine.</p> |
