| 摘要 |
A lawncare machine 100 has a powered rotary raking or scarifying reel 5 together with a powered vacuum collector 8 whereby material thrown up by the reel is immediately drawn into the collection chamber 8. During removal of the vegetation material, it is drawn into the chamber 8 due to a suction created by a fan 2. The material is normally held in the box by means of a perforated screen 10 situated between the box and fan entry. The chamber 8 may be emptied by moving the screen 10 so that the material is discharged through the fan 2. Alternatively the chamber 8 may be emptied by means of flap valves 19, 21, 23 which cause a reversal of the airflow through the chamber so that the collected material never passes through the fan.
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