Foldable extensible ladder for e.g. forming leg of variable height table, has post constituted of segments and adjacent segments, where each segment and its corresponding adjacent segment being articulated between them at their middle

摘要

The ladder has a post situated on its symmetry plane and constituted of a set of segments (2) and adjacent segments (3), where each segment and its corresponding adjacent segment being articulated between them at their middle. The successive segments are articulated at their end, where the distance between successive articulations is identical. The ladder is implemented by manually deploying the successive segments in support on their field.