| 摘要 |
Stair-climbing aid to be placed on treads of an existing flight of stairs. The height of said aid is approximately half the difference in height between adjacent original treads, so that, per step, half the difference in height has to be overcome. In order to provide for applicability to different types of stairs, it is proposed to construct the stair-climbing aid such that its height is adjustable, so that said aid is of universal applicability. However, it has been found that it is also important that the depth of the stair-climbing aid is adjusted to the circumstances. Therefore, this stair-climbing aid is constructed such that it is likewise adjustable in the horizontal direction. |
