| 摘要 |
<p>In a dust collection device (30) attached to a hammer drill, a filter (65) is provided in a dust box (53) at a position at which the filter (65) covers an outlet (57) provided on a rear face of a lid body (55), in an attitude such that a filter surface (59) projects into the dust box (53) from the rear face of the lid body (55). A space is formed between an inner face of a box main body (54) and a side face of the filter (65) that is adjacent to the filter surface (59). Air outlets (51, 51) are provided to guide air, which flows in through an inlet (56), toward the space.</p> |
