| 摘要 |
A rotary head for dethatching machine includes a plurality of channels which are evenly distributed along the outer periphery of the rotary head for receiving flexible dethatching filaments. The dethatching filaments are elongated with a plurality of barb-like protrusions on one end thereof for engagement in the channels of the housings. Once a filament is inserted into a channel, it cannot be pulled out due to the protrusions engaging the interior and exterior walls of the channel of the rotary head. A plurality of rotary heads are mounted on a shaft of a machine. During rotation of the shaft and the rotary heads, the flexible filaments contact the accumulated dethatch with sufficient force to dislodge thatch for later retrieval and clean up.
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