| 摘要 |
The invention relates to a vertical support structure for a safety fence system on the outside of a building roof. The vertical support structure (50) comprises a lower support (100, 101, 102) that may be supported against the ground or some other support surface, an upper support (140) that rests on the lower support and may be placed against the underside of an eave of the roof and, in addition, a tightening structure for changing the distance between the lower support and the upper support for tightening the vertical support structure between the underside of the eave and the support surface. In addition, the vertical support structure comprises a support (121) for a rail post (C). |
