| 摘要 |
Arrangement at truck mast constituted by three mutually telescopically moveable parts (1,2,3), which each include three vertical beams (4,5,6) placed in the corners of a triangle. Between the middle mast part (2) and the fixed lowest mast part (3) a balance cylinder (11) is arranged in the central beam (5) of the next to the lowest mast part (2). <IMAGE> |
