| 摘要 |
The lift device (4) point of effect is located within a first beam part and orientated to one side of a vertical plane. The other beam part is located on the other side of the plane and via running rollers (21,22,23) work in conjunction in each case with a rail fixed to the building. The other beam part (10b) works in conjunction with a hole or cavity-profiled rail and is provided with a number of force-absorbing running rollers. In each case a first running roller is orientated to act against a rail part (10) with a rolling surface (102) facing away from the first beam part (10a). In each case a second running roller acts against a rail part (103) and against a rolling surface (104) facing towards the first beam part (10a). |
