| 摘要 |
PURPOSE: To gently discharge supply air into a room and to make uniform the distribution of the supply air, by providing an outlet plate at one end of a substrate part, connecting the other end of the substrate part to a blowing pipe via a tubular part, and providing a perforated plate at the tubular part. CONSTITUTION: A multiple-stage-type outlet is provided with a substrate part 1 being formed in a multiple-stage type. The substrate part 1 is provided with a tubular part 2 where an annular collar 3 in an inner direction is attached to one end. The annular collar 3 surrounds an entry port 4 for supply air to be introduced into indoor space. The entry port 4 is covered with a perforated plate 5 with a number of fine radiation through holes 6. An annular part 7 is formed at the other end, and further an outer annular contact part 8 is formed. An axial flow outlet plate 9 is pressed against the annular contact part 8 and is attached so that the perimeter of the outlet plate 9 matches a side wall part 10. A plurality of outlet slits 11 are formed at an annular position on the outlet plate 9. A screw head part 14 of a bolt 13 is brought into contact with the outlet plate 9, one portion of a screw cutting part 15 is screwed into the perforated plate 5, and the outlet plate 9 can be easily fixed to the substrate part 1.
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