| 摘要 |
The staircase consists of individual elements, forming the centre column, adjustable in stair height and turn radius, of a metal structure. The element top ends of each are inserted into each next element lower end and clamped together by a compression ball coupling. The individual elements are arranged sequentially in any arbitrary angular geometry of a zigzag course. At each turning point of the zigzag geometry is secured a stair. On an upward extension of the lower end of each element a stair holder is inserted, which is rotatably mounted and can be fixed as required. |
