| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust collection filter which uses a metal mesh filter as a filter for separating dust and prevents dust catch by reducing barriers on the ventilation upstream side of a resin frame forming a frame of the metal mesh filter. SOLUTION: The dust collection filter is provided with a resin frame 14 integrally molded on the ventilation downstream side of the metal mesh filter 13. In forming the resin frame 14, the resin goes through a through-hole 12 provided in the metal mesh filter 13 and grips a coupling metal mesh filter 13 with resin on the ventilation upstream side, so that the joint strength between the resin frame 14 and the metal mesh filter 13 is secured. COPYRIGHT: (C)2010,JPO&INPIT
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