| 摘要 |
The invention relates to a boom and personnel hoist. The boom (3) comprises at least one elongated boom part (9), the cross-sectional profile of which comprises a top (10), two sides (11), and a bottom (12). The sides comprise at least three sections (20, 21, 22) and corners (N) between them. The bottom parts of the sides are wider than the top parts. The bottom comprises at least five sections (23 to 26) and corners between them. This type of boom and boom part may be in a personnel hoist (1). |
