FILTER FRAME AND FILTER ASSEMBLY

摘要

A frame for sandwiching and holding a filter includes a first frame portion, a second frame portion, a plurality of first tapered projections, and a plurality of second tapered projections. At least the first tapered projections are disposed so as to be sandwiched by the second tapered projections with respect to an arrangement direction. Shapes, in a section in a plane perpendicular to the arrangement direction of at least one of the first tapered projections and the second tapered projections, of the at least one of the first tapered projections and the second tapered projections have first sides substantially perpendicular to a bottom thereof and second sides inclined with respect to the bottom.

主权项

1. A frame for sandwiching and holding a filter, comprising:
a first frame portion; a second frame portion configured to hold the filter between itself and said first frame; a plurality of first tapered projections configured to be provided on a surface of said first frame portion where the filter is mounted and configured to project from the surface of said first frame portion so as to be disposed with intervals at an edge portion of a region where the filter is disposed; and a plurality of second tapered projections configured to be provided on a surface of said second frame portion where the filter is mounted and configured to project from the surface of said second frame portion so as to be disposed with intervals at an edge portion of a region where the filter is disposed, wherein at least said first tapered projections are disposed so as to be sandwiched by said second tapered projections with respect to an arrangement direction, wherein shapes, in a section in a plane perpendicular to the arrangement direction of at least one of said first tapered projections and said second tapered projections, of said at least one of said first tapered projections and said second tapered projections have first sides substantially perpendicular to a bottom thereof and second sides inclined with respect to the bottom.