| 摘要 |
When fastening cladding panels or the like on the underlying surface by means of fastening elements (1) which can be pushed and driven in by a setting tool (2), the correct fitting thereof can be controlled only with difficulty; but said correct fitting is desirable in order, for example, to avoid finishing work on facades and to prevent accidents due to panels falling off. In order to remedy this, the invention has provided, between the fastening element (1) and a sleeve (21) which guides the actual driving ram of the setting tool (2), a coupling which can be overcome only when a predetermined retaining force of the fastening element (1) is exceeded, advantageously by the reaction force which occurs on the setting tool (2) during the driving-in operation. <IMAGE> |
