| 摘要 |
2.1. Fastening elements having an expanding cone and an expanding element which can be pushed thereon can be anchored in a positively locking manner in drilled holes having undercuts. In the case of drilled holes having a very small drilled hole depth, special requirements are placed on the fastening elements. …<??>2.2. A fastening element (5) is proposed especially for the fastening of facade plates, on the expanding cone (6) of which fastening element (5) there rests a ring (7), which is bent in a roof shape, as the expanding element. For anchorage in the drilled hole, the ring (7) is pushed onto the expanding cone (6) and is largely pressed flat thereby, lateral edges of the ring (7) being braced on the wall of the drilled hole. …<IMAGE>… |
