| 摘要 |
A self-propelled factory floor cleaning vehicle has a cylindrically-shaped rotating sweeping broom to propel forwardly debris disposed on a contacted portion of a factory floor being cleaned, thereby creating a forwardly propelled stream of debris. A hopper is disposed to receive and retain the forwardly propelled stream of debris. A deflector flap is disposed forwardly of the rotating sweeping broom and immediately rearwardly of the hopper, to receive at least a portion of the forwardly propelled stream of debris and to deflect it upwardly and forwardly onto the hopper. An air blast outlet effects a blast of air forcefully impinges in a forward direction the floor behind the leading edge of the broom, thereby propelling forwardly therewith fine debris disposed on the factory floor, and carries forwardly through the sweeping broom and egresses therefrom, to deflect forwardly and upwardly off the deflector flap and forwardly past the deflector flap to travel to the hopper, in a path having a forward component along its entire length, exclusive of subsequent impingement of the factory floor and exclusive of subsequent re-entry into the lower portion of the rotating sweeping broom.
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