| 摘要 |
A power tool (210) and fasteners (212) filled with a filler material (218) are provided. The power tool (210) drives fasteners into a substrate and fills cavities formed in the substrate formed over the driven fasteners with a filler material. The power tool (210) is preferably a pneumatic gun having a staple driver (220) and a filler material driver (22) actuated by pressurized air. The gun includes a trigger operator (310) which when pulled first causes a staple (212) carrying filler material (218) therewith to be driven by a plunger (252) of the staple driver (220) through its shaft into the substrate with the filler material (218) extruding from the driven staple (212) into the shaft (288) of the filler material driver (222) which is next driven by a plunger (290) of the filler material driver (222) out from its shaft (288) and into the cavity (216) formed over the driven staple (212). A scraping shoe (230) can be provided adjacent the drivers for scraping away excess filler material (218) from the substrate surface (214a). |
