| 摘要 |
<p>The invention refers to an agricultural machine (1) for soil cultivation with variable row spacing, which machine comprises frame beam parts (3, 4) that are rotatably connected to each other, and an even number of tools (6, 6', 6"), preferably planter aggregates, that are arranged at reciprocally mainly equal distances along the frame beam parts and in the horizontal plane rotatably mounted on these, wherein the tools are adapted to be brought mainly parallel to the driving direction by means of parallel control members (16, 17, 18, 19). The tools which are connected to the one frame beam part are at least one more than the tools which are rotatably connected to the other frame beam part, and the viewed in the driving direction transversely centrally disposed tools (6', 6") are so arranged that the vertical plane through the fore coupling point (27) of the drawbar (2) extends straight backwards mainly midway between these centrally disposed tools, so that two neighbouring tools are adapted to be displaced in the longitudinal direction relative to each other on rotation of said frame beam parts.</p> |
