| 摘要 |
A dust pan assembly is provided, with the assembly carrying at least one dust pan and the sweeper supporting wheels and axle means. The assembly is mounted beneath the sweeper housing with the ends of the axle means being disposed in horizontal slots adjacent the housing sidewalls. Movement of the sweeper in one direction causes the housing and slots to slide horizontally over the axle means and dust pan assembly until the rotary brush roll engages or disengages from the supporting and driving wheels on the assembly so that the brush roll drive is coupled or uncoupled. A brush cleaning comb is suspended from the dust pan assembly above the entrance to each pan. When a brush roll shifts relatively toward the assembly, the brush is carried into cleaning contact with the comb; while when the brush shifts relatively away from the assembly, it is carried out of contact with the comb.
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