| 摘要 |
<p>1. A multifurrow reversibly mounted plough of the type comprising a coupling member on the three-point hitch of the tractor and a beam carrying the pairs of symmetrical shares in alignment in a side plane parallel to the longitudinal axis of said beam, said beam being made rigid with a reversing shaft (7) carried by the coupling member via connecting elements (14, 18, 20) adapted for varying the obliquity of the longitudinal axis of said beam with respect to the axis of the reversing shaft to as tp adjust the side offset of the beam front end and its angle of rotation about a vertical axis, said plough including moreover means for rotating said beam about said reversing shaft over an angle of about 180 degrees and a strut (22) articulated between the coupling member (at 23) and the beam (at 24), characterized in that said strut (22), which is permanently in position and of fixed length, is articulated to the beam via a link (26) having at least one degree of rotation about an axis parallel to the longitudinal axis of the beam and lying both in the plane of symmetry of the shares and on the longitudinal axis of the beam, or beyond said axis with respect to the shares.</p> |
