Mobile step ladder has ladder part pivoted for adopting 2 alternate end positions relative to mobile frame

摘要

The step ladder has a mobile frame (1), provided with a number of horizontal steps (2) on one side, each step pivoted at either end to a double upright (3,3'), for providing a parallelogram linkage suspended from the frame, allowing the ladder part (5) to adopt 2 alternate end positions relative to the frame.