| 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.
|
