| 摘要 |
<p>A vacuum shield (22) for an abrading part of an abrading machine (10) comprising a generally planar top wall (24) mounted on the abrading machine; the top wall of the shield being made of a rigid transparent material and has a first segment (28) having an aperture through which the abrading part (16) can be supported and driven by the abrading machine and a second segment (30) pivotally connected to the first segment for upward pivotal movement of the second segment about its connection to the first segment; a plurality of outlets (38) in said shield each adapted to receive a vacuum hose to provide pneumatic communication between the hose and the abrading parts; and a flexible skirt (26) depending from the peripheral edge of the top wall and extending substantially continuously along the entire length of the peripheral edge of the top wall; the skirt substantially surrounding horizontally the abrading part of the abrading machine, even when the second segment is pivoted upwardly relative to the first segment.</p> |
