| 摘要 |
<p>A belt sander (10) for sanding a work piece with a sanding belt (B) and having, a housing (12), a main roll (30) mounted in the housing (12) and a motor (14) for rotating the main, roll, an extension roll (90) located adjacent to the main roll for extending a sanding belt from the main roll substantially parallel to a plane of the work piece, and, a control bar (110) located between the extension roll (90) and the main roll (30) for controlling the sanding belt (B) and defining a contact area for the sanding belt. <IMAGE></p> |
