| 摘要 |
<p>The lever (11) is pivoted to an axis extending perpendicularly across the vertical tractor implement shaft (1) at one end of the latter, and the articulated end of the lever (11) has a pointed extension (12), which abuts against a non-rotatable crossbar (13) when the lever (11) is under heavy load. Pref. the lever is articulated to a pivot pin (10) positioned at one side of the shaft (1) and fixed to the latter. Pref. the crossbar, against which the projection (12) of the latter abuts, is U-shaped and the lever (11) itself may be curved, so that the vertical shaft (1) is positioned between its two flanks. The shaft (1) is mounted by a screw and nut mounting at the end where the lever (11) is articulated, allowing the shaft to be adjusted longitudinally.</p> |
