| 摘要 |
<p>A sweeping machine including a chassis (10), wheels (26) for supporting the chassis, a brush (30) mounted on the chassis for rotation in a direction to throw debris over the brush and into a debris hopper (32) mounted on the chassis behind the brush,
a flap assembly (92) positioned in front of the brush (30) and closely adjacent thereto, said flap assembly (92) having a flexible lip (106) which is in contact with a surface being swept, an operator control (22) and a connection between said operator control and said flap assembly for raising and lowering said flap assembly between a normal position in which said flexible lip is in contact with the surface being swept, a first raised position in which the flexible lip has been raised substantially vertically a small distance above the surface being swept, and a second raised position in which said flap assembly has been both raised and pivoted in a forward direction relative to said first raised position to permit debris to pass under said flap assembly to an area about said rotatable brush.</p><p>The sweeping machine of claim 1 wherein said operator control includes a foot pedal.</p> |
