| 摘要 |
<p>The stepladder comprises a first pair of main uprights (2) equipped with a plurality of folding rungs, and a second pair of auxiliary uprights (12) used in combination with the main uprights. This stepladder comprises an elastic member (50) between each main upright (2) and each auxiliary upright (12) which tends to drive the auxiliary upright (12) from a folded position where it is held in place by a locking member to an unfolded service position. One application is the production of a folding stepladder with automatic opening. <IMAGE></p> |
