| 摘要 |
<p>1384461 Lift trucks POTAIN 21 Jan 1972 [4 Feb 1971] 2905/72 Heading B8H An articulated boom 4, 6, which is mounted on a tractor and actuated by rams 11,. 12, is provided at its outer end with a load platform 9, the orientation of the load platform normally being maintained constant by parallelogram linkages and the linkages being deformable by means of a ram 19 to tilt the load platform. In a modification, Fig. 5 (not shown), the platform 9 is mounted for up and down movement on a mast which is pivotally mounted on the boom and connected to the parallelogram linkages.</p> |
