| 摘要 |
<P>PROBLEM TO BE SOLVED: To facilitate an attaching/detaching work of a dust-collecting cover to/from a portable disk grinder. <P>SOLUTION: The dust-collecting cover 31 includes a volute case part 34 for undetachably storing a centrifugal fan 32 and a cover part 51 projecting from the volute case part 34 to cover the entire periphery of a diamond grinding wheel 19. The volute case part 34 includes a mounting part 42 to a boss part 16a of the disk grinder 11. A circular recess 61 is provided on an internal surface of a top wall 36 of the volute case part 34 and a substrate 32b of the centrifugal fan 32 is arranged in the circular recess 61, thereby the centrifugal fan 32 being positioned in a radial direction in the volute case part 34, even in a state in which the volute case part is removed from the disk grinder 11. Accordingly, the centrifugal fan 32 and the volute case part 34 are integrated with each other to mount the dust-collecting cover 31 on the disk grinder 11. <P>COPYRIGHT: (C)2013,JPO&INPIT |
