| 摘要 |
PURPOSE:To enable an inspection cover to be fitted or removed and enable th cover to be slidably opened or closed by a method wherein a pair of slide fittings comprised of a sliding groove and a hook fitted to a cut groove and a slit hole are rotatably fitted in an inspection port and a supporting point and then the hook of each of the sliding fittings is fitted and fixed into the slit hole in the inspection cover. CONSTITUTION:A pair of fittings 1 have a hook 2, a tongue 3, a slide groove 6 and a cut groove 7. An inspection cover 8 has a fine elongated tapered slit hole 4 and a rectangular hole 5 at right and left bent flanges and a screw hole 9 at a central part. A combination of the fittings 1 and the inspection cover 8 is carried out such that the hook part 2 and the slit hole 4 are combined and the tongue 3 and the rectangular hole 5 are combined and then they are fixed with screws 11. Suction air passes from a side surface of the inspection cover 8 through a filter 12 and further passes an indoor device and then the suction air is blown out. The inspection cover 8 is held by the supporting points 10 and this inspection cover becomes normally a designed surface against a lower surface. Opening or closing of the cover is carried out by sliding it from a cut 7 of each of the fittings, it is rotated downwardly so as to perform a maintenance work of the filter 12. The inspection cover 8 can be fixed or removed by fitting or removing two screws 11. |
