| 摘要 |
<p>Controlling and guiding system for a hydraulic crane with articulated arms, characterised in that it consists of a "stick" type lever with three control axes in which: - rotating the lever about itself causes the crane to rotate relative to its support, in particular on its turret; - the other two axes, at right angles, serve to obtain the horizontal and vertical components of the desired speed of the load.</p> |
