Very fine conductive short fibers easily causing corona discharge are spun to fuzz and formed into a yarn, and a suitable amount of thus spun yarns are set as a static eliminating means on the brush bed 2 or the grip part 3. 容易にコロナ放電を起こす極細の導電性短繊維を表面が毛羽立つように紡績して糸にし、この紡績糸4の適量を除電手段としてブラシ基台2又は把持部3に設置する。 - 特許庁