| 摘要 |
PROBLEM TO BE SOLVED: To improve workability in replacing a filter material of a filter having a holding wire for holding the filter material.SOLUTION: A holding wire 3 for holding a filter material 1 is formed of a metal wire in a Z-shape, and is attached to a frame member 2 in an elastically deformed state so that one end part 3a abuts in an intermediate position of one lateral side of the frame member 2, folded parts 3b, 3c abut respectively in intermediate positions of an upper side and a lower side, and the other end part 3d abuts at a corner part between the other lateral side and the lower side of the frame member 2 to an inner bottom surface of a holding groove 2a respectively. In removing the holding wire 3 from the frame member 2, the one end part 3a can be easily pulled out from the holding groove 2a by elastically deforming the holding wire 3 by holding a handle 5 arranged on the one end part 3a. Thereby, removal work of the holding wire 3 becomes easier as compared with a conventional one, and replacement work of the filter material 1 can be carried out efficiently.SELECTED DRAWING: Figure 3 |
