| 摘要 |
A lawn sweeper is provided having rotary brushes mounted in a housing and projecting through a bottom opening in the housing for sweeping up debris. A vacuum fan with an internal shredder is also mounted to the housing and communicates through a vacuum chute with the bottom opening for drawing in, shredding and discharging debris swept up by the brushes. A damper valve plate is disposed in the vacuum chute between the brushes and the vacuum fan and is operable for closing off the vacuum chute to provide a leaf vacuum port. A linkage is connected to a damper valve plate and also to the drive for the brushes to simultaneously disengage the drive for the brushes and to close off the vacuum chute with the damper valve plate.
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