| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust collecting cup whose inside is to be easily maintained. SOLUTION: An engaging/disengaging part for engaging and disengaging a compression body 18 and a shaft is provided. The engaging/disengaging part is made to turn by disengaging from the shaft so that the engaging/disengaging side of the compression body 18 has a free end, and when moving the compression body 18 and compressing dust housed in a dust housing part, the dust which moves from the gap between the outer peripheral part of the compression body 18 and the inner peripheral part of a cylindrical part 21 or the like to the upper side of the compression body 18 is easily removed by turning the compression body 18, and the inside of a main body part 15 is easily maintained. COPYRIGHT: (C)2006,JPO&NCIPI
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