JPH02108714U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 shows an assembled cross section of a filter according to an embodiment of the present invention, FIG. 2 shows a perspective view of an exploded arrangement of parts, and FIG. 3 shows a 3-3 cross section in FIG. 2 and an enlarged cross-sectional view of a protrusion. 10: Filter, 11: Upper casing, 14
, 15: comb tooth-like part, 16, 17: protrusion muscle,
20: Material, 24: Lower casing.

Claims (1)

[Scope of utility model registration request] The synthetic resin casing is formed by fitting the upper and lower parts together, and adjacent comb-like protrusions are provided on the inner surface of each side wall, and the upper and lower parts are arranged so as to interlock with each other. In a rectangular filter in which both ends of the folds of the material are held together, and both ends of the pleats of the material are held by the fitting parts of the front and rear walls of the upper and lower casings, the both sides of either the upper or lower casings are A crimp-seal type filter characterized by providing a continuous protrusion line along the comb-tooth shape approximately in the center of the thickness of the comb-tooth-like protrusion.