| 摘要 |
<p>The mouthpiece has a connecting tube (1) engaged or fitted at a free end of a suction pipe of a vacuum cleaner. A dusting element (3) e.g. duster and brush, is integrally formed with the connecting tube. The dusting element consists of fibers and/or feathers (4) extended at a free end of a hollow rod (5) that is secured to a wall (2). The wall closes a distal end of the connecting tube, so that the hollow rod extends co-axially with the connecting tube. The wall comprises a central opening emerging in the hollow rod, and through-holes (7) positioned around the hollow rod.</p> |
