Smoke and heat removal device e.g. for rooms, has lockable flap and provided at trim circumscribing roof aperture with hinge provided being tiltably stored and which faces side

摘要

The device has a lockable flap and provided at a trim circumscribing a roof aperture. A hinge is tiltably provided and faces a side. The hinge is so provided that it allows an opening for the flap to move inward to an area. The flap (6) is provided at a split framework (9) so that a main frame (9a) and a subframe (9b) are formed. The hinge at the framework allows the flap to be opened inward to the area.