| 摘要 |
Device for operating a closure part comprises an operating part formed as a bellows which expands using a pressure medium and lies flat between a region (30) of the closure part on the hinge side and a flat piece (28) of an edge (18) of an opening (16). An independent claim is also included for a smoke removal device with the above operating part for opening a fire protection cap (10). Preferred Features: The bellows has several chambers and is formed by a film with layers folded in a harmonica manner. The bellows is connected via a line to a pressure source. |
