| 摘要 |
PROBLEM TO BE SOLVED: To provide an air supply and exhaust grille connected to a duct provided in the ceiling or the like of a room of a house, installed in the ceiling or the like, and used as an air supply port or an air exhaust port, capable of being easily installed, suppressing an excessive force from acting on the duct at a time of usage, and ensuring the generation of less pressure loss.SOLUTION: An air supply and exhaust grill comprises: a front-side body 7 installed in a through-hole 11 provided in a ceiling 3 of a room or a wall of the room; and a rear-side body 9 provided in the backside of the ceiling 3 or outside of the wall, detachably attached to the front-side body 7, and connected to a duct 5, the air supply and exhaust grill being configured so that a front-side body connection portion 19 is provided in the front-side body 7 and a rear-side body connection portion 21 and a duct connection portion 43 are provided in the rear-side body 9, the rear-side body connection portion 21 crosses the duct connection portion 43 generally at right angle, and a plurality of guide portions guiding the rear-side body connection portion 21 to the front-side body connection portion 19 is provided to be located on a rear side, where the rear side is an opposite side to a side on which the duct connection portion 43 is provided.SELECTED DRAWING: Figure 1 |
