| 摘要 |
The invention relates a protective structure for brushes of sweeping machines ( 30 ) having a frame ( 31 ) and at least one cup-shaped brush ( 20 ) supported protruding from the frame ( 31 ), said structure ( 1 ) comprising a flexible membrane ( 2 ), positioned near the cup-shaped brush ( 20 ) and suitable to prevent the diffusion of dust in the environment, and a supporting system ( 3 ) for the flexible membrane ( 2 ), the supporting system ( 3 ) being movably connected to the sweeping machine and comprising a movable portion ( 6 ) which shapes the flexible membrane ( 2 ) and elastically deforms near the frame ( 31 ) counter to elastic means ( 9 ).
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