| 摘要 |
<p>Ladder particularly for use inside hollow structures such as wind turbine towers and the like where said ladder comprises two parallel rails, and a plurality of steps arranged between said parallel rails, characterised in that the rails are made from sections of a first profile and the steps are made from sections of a second profile, wherein the first profile in a longitudinal direction of the profile comprises a chamber enclosed by at least three longitudinal walls, and where first apertures are provided in a wall of said first profile, where said first apertures are spaced along the first profile corresponding to the distance between the steps, and where said second profile is provided with an end section in either end, such that a step is a section of a second profile with end sections, where a cross section of said end sections corresponds to the cross section of said first apertures provided in the two parallel rails, and where said steps are twisted around their longitudinal axis in order to fasten the steps relative to the first profile, and that furthermore along the chamber in the first profile, a C-shaped section is provided, said C-section being constituted by two bent flanges, where each flange along one edge is connected to the first profile such that a gap is provided between the two opposite edges of the flanges, the opening between the two flanges in said C-shaped section being accessible for a user standing on the steps.</p> |
