| 摘要 |
This invention relates to a collapsible ladder for carrying out work on the surface of convex buildings such as radomes and other domes. The ladder - the radome ladder - consists of a number of straight sections which are hinged together by means of brackets which are articulated externally to a section end piece at the end of each ladder section. These end pieces can be changed to suit the diameter of the dome, and the length of each ladder section, in such a way that the ladder, when unfolded, forms, in essence, an arch parallel with the surface of the dome. In each section end piece there is a castor which rolls along the dome, permitting the radome ladder to be moved sideways with ease. |
