| 摘要 |
<p>The invention relates to a hand driven beater, with variable centroid, used in household field, for cleaning the dust and other impurities in the thick materials, such as carpets, blankets, etc. According to the invention, the beater is made up of a rod (1) and a plastic blade (a) which are passed by some longitudinal, cylindrical channels (2, 3 and 4) wherein there move some round bodies (5, 6 and 7) made up of a material with a density bigger than the plastic of which there are made the rod (1) and the blade (a), the channels (2, 3 and 4) being obturated at the free ends by some plastic plugs (8, 9 and 10), mounted by screwing, not allowing the round bodies (5, 6 and 7) to get out during the operation.</p> |
