| 摘要 |
An apparatus for collecting particulate material from a depository surface, such as a roadway, including a front-end collecting vehicle having a front-to-rear extending passageway. Mounted within the passageway is a first or front rotary rake member, a second rotary rake member behind the first rotary rake member, and a rotary brush member behind the second rotary rake member. Preferably mounted behind the vehicle frame is a conveyor mechanism for removing debris from the vehicular frame. Both rotary rake members include a plurality of interdigitating tines which are driven to move in the same forward direction so that the tines moving beneath the rotary axes are moving and collecting the debris rearwardly within the passageway. The rotary brush member is driven in the opposite rotary direction from the rake members to pick up the debris collected by the rake members and to force the debris rearwardly upon the conveyor mechanism.
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