| 摘要 |
PURPOSE: A brush shaft for washing a flat panel display is provided to reduce the weight of a brush shaft by charging polyurethane foam in the hollow of the main shaft. CONSTITUTION: A brush shaft(11) of a cleaning brush(1) includes a main shaft(11a), a charging/reinforcing foam(11b), and two sleeves(11c). The main shaft is made in a cylindrical shaft of metal material such as stainless and so on. The charging/reinforcing foam fills polyurethane resin in the main shaft, and those two sleeves are installed at the main shaft and the both ends of the charging/reinforcing foam. |
