| 摘要 |
<p>An access tower (100) comprises a work platform (120) and a support structure (130) to support the work platform (120). The support structure (130) comprises a plurality of cells (140) each defined by: upper and lower horizontal members (150) and first and second groups of collapsible members (160, 165) which define opposed first and second sides respectively of the support structure (130) and are configured to move from a collapsed orientation to an erected orientation. The support structure (130) collapses in the vertical direction over at least a part of its height. When erected, the first group of collapsible members (160) forms opposed first and second side rails (182, 184) of an inclined ladder (180) to allow a user to access the work platform (120). Also included is an access tower characterised by the locking mechanism of at least one of the cells. Also defined is an access tower characterised by a pivoting arm biased to erect the cell.</p> |
