| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a clogging prevention device for a dust-proof filter in a simple configuration that easily extends the dust collection effect of the dust-proof filter. <P>SOLUTION: This clogging prevention device for the dust-proof filter to prevent the clogging of a dust-proof filter 10 disposed at the ventilator 5 of a case 1 is characterized in that the ventilator 5 is composed of a plurality of ventilation slits 4 disposed at a predetermined interval, and the dust-proof filter 10 and the ventilator 5 are arranged so that they may relatively move along the vertical direction identical to the direction that the ventilation slits 4 are disposed. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
