| 摘要 |
The foreign material filter for a drainage hole of the present invention comprises: a main body which comprises a lattice window part and at least two through holes partitioned by the lattice window part; and a pair of gripping parts extending from the main body which are capable of being folded or unfolded against the main body, and have one end opposite the point of connection to the main body as a free edge which is not connected to the main body. The gripping part comprises: a coupling part at the end of the free edge; and a gripping part body extending from a point in contact with the main body to the coupling part, wherein the gripping part body is bent at at least one point thereof. As compared to the prior art, the filter of the present invention may increase a production output per unit area of a processing film, and minimize an area not used by the processing film, such that manufacturing costs are substantially reduced. |
