| 摘要 |
The invention relates to a lifting beam (10) including: a lower beam (11) and an upper beam (12) arranged above the lower beam; means (30) for arranging the beams in close and releasable engagement with one another; and systems (17) for grasping said load, wherein the grasping means are kept in an open position when the beams (11, 12) are in engagement with one another, and in a closed position when the engagement means are released. |
