| 摘要 |
<p>The way of stepwise zigzag passing of a person in a wheelchair over a stairway is realized so that the wheelchair (3) is placed on the platform (2) of the elevator (1) in point (A) at the beginning of the stairway (4). The elevator (1) moves it to point (B) then turns it to point (C) which is in the area of the stairway and then moves it to point (D) which is above the level of the top of the stairway (4), and from there the wheelchair can start its way on wheels; or the wheelchair is turned to point (E) where it (3) can start its way on wheels.</p> |
