| 摘要 |
Stairs having at least one step (10) and a sitting step (9) extending transversely on this step, the step (10) and the sitting step (9) being secured in such a way that they can be adjusted from their normal position as stairs into a position in which they lie next to one another and form a platform (5,6,9), while means are mounted with the aid of which the platform formed in this way can be adjusted in height. <IMAGE> |
