| 摘要 |
<p>The burglar-proof block comprises a bolt (3) which can be moved into a locking position and released therefrom in response to increasing distances between the shutter slats (2a,2b) by a release member (4) which is connected to the bolt. The bolt protrudes on one side over the edges of the slats. The bolt can be set in the lowest slat designed as a strengthened hollow slat. The release member can be a draw cable fixed on a slat above the fixing slat and guided from there to a position where it is fixed on the bolt.</p> |
