| 摘要 |
PURPOSE:To make it possible to install an air cleaning filter in a prefilter without making the net of the prefilter damaged, by setting a holding stopper in the prefilter frame of the air cleaning filter. CONSTITUTION:A deodorization filter element 19b of a filter element 19 is set towards outside in a lib 17f and an inside frame 18 is installed in an outside frame 17 to assemble a holding frame 16. By holding the protruding element 18f of the holding frame 16 to fit between a holding part 15e and a lower installing frame 15d, hooking the protruding parts 18b, 18c, 18d in holes 15j, 15k, 15l, an air cleaning filter 10 is constructed. Fitting the holding stopper 15b, 15c of the air cleaning filter 10 into notches 9f, 9e of the prefilter 9, warping the prefilter 9, and hooking the holding stopper 15a in frame 9a, the air cleaning filter 10 is installed in the prefilter 9. The air cleaning filter 10 can be installed without additional processing. The net 9b can not be damaged because no force is applied in the net 9b of the prefilter 9. |
