| 摘要 |
<p>The holder has a four bar linkage (1) constituted of a fixed transversal edge (11) connected to a hitching point of a machine tractor, and a movable transversal edge (12) that is arranged opposite to the fixed transversal edge to hold a inter-plant tool (2). An effort limiter device is formed of a jack (5) that angularly deviates the tool, where the device is formed of an effort detector that actuates a jack control electrovalve to release the tool. A lateral displacement jack electrovalve deviates the tool to combine two movements for limiting an angular tilting of the tool.</p> |
