| 摘要 |
To achieve a kinematic length variability of stabilizing struts for the lateral stabilization of the lower links of a hydraulic three-point linkage on farm tractors or traction engines, without these needing to be changed over at the connection end or without bolts and retaining devices having to be changed over, the point of articulation of the stabilizing strut is guided on a circular path by a rocker mounted so as to be pivotable to a limited extent in a bearing block fastened to the tractor. The rocker can be locked in two end positions by bearing against one of two bearing faces terminating a guide face taking the form of a segment of a circle, with the result that two different initial positions of the stabilizing strut are obtained, so that the lower links can be set rigidly in the lateral direction in different pivoting positions. In one embodiment, the rocker is formed by two discs which are arranged rotatably on a bearing bolt and are connected to one another at a distance and of which the circular contour form is interrupted over less than half their circumference by congruent recesses which have the bearing faces for a retaining bolt in one of the two end positions. In another embodiment, the rocker is designed as a spring-loaded lever.
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