| 摘要 |
This invention relates to a rotary brush for road-cleaning machines, constituted by a support disc to which are attached a plurality of bundles of fibres, each of the fibres which constitute said bundles being of oblong section and being so orientated that the largest dimension of its section extends perpendicularly to a straight line passing through the point of fixation of said fibre to the support disc and tangential to a circle of determined radius, centered on the axis of the brush. |
