| 摘要 |
<p>A folding ladder which can be used in domestic environments for comparatively small heights but also as a product for a wider, more general application. A folding ladder made of frames connected with mechanical joints in which the repeated element is a frame made of two vertical profiles (1) connected with two or more horizontal profiles (2), where mobile vertical parts (6) are positioned in the vertical profiles (1) and are placed in their own frame folded by entering into the adjacent vertical profiles (1) in an unfolded working position. The advantage of the proposed latter is that its construction offers a compact product which can be easily and promptly folded and unfolded.</p> |
