| 摘要 |
<p>Regarding a duct structure used for underfloor air conditioning, an underfloor air-conditioning duct structure wherein the cost of a duct is reduced and the structure of a duct is simplified and wherein a duct can be easily constructed, is provided. In an air-conditioning structure which circulates an air-conditioning air discharged from a cooling and heating air conditioner within a duct (3) disposed in an underfloor space, the duct (3) is comprised of a heat insulating material (22) placed on the upper portion of a floor slab (1), a flat substrate (25), a pair of side covers (6, 6 (7, 7)) which are composed of an upper flange (24) and a lower flange (26) obtained by bending both ends of the substrate in the same direction and which are opposite to each other on the heat insulating material (22) and lie on the lower flange (26) side, positioning members (10, 11) which are placed between the lower flanges (26, 26) and which are secured to the floor slab (1) by an anchor tool (50), and top panels (8, 9) which are placed between the upper flanges (24, 24) of both sided covers and fixed by a fixing tool.</p> |
