To provide a fire damper device and an outdoor hood that excel in maintainability, enable low die investment and the like and are easy to install from both an indoor side and an outdoor side.
The fire damper device comprises a damper frame 5 having a cylindrical part adapted to be positioned in a wall opening 3 cut in a wall surface 2 of a building and provided with openings at both ends to form a ventilation flue A, and having a pivot 6 inside across the ventilation flue A, dampers 7 substantially symmetrically turnable on the pivot 6 so as to close the ventilation flue A when opened, a heat-melting temperature fuse 9 for holding the dampers 7 in a position to open the ventilation flue A, and a plurality of mounting legs 10 projected from one end of the damper frame 5. The structure is simple, excels in maintainability and enables low die investment and the like.
Tomoyasu Sakaguchi
Hiroki Naito