| 摘要 |
A seed drill comprises first through fourth bins and a distributing mechanism. The bins have upper edges defining first and second openings. The upper edges and the openings are substantially coplanar. The distributing mechanism distributes material from a source to the receptacles, and includes an enclosed channel to the receptacles and a mechanism for driving material within the channel from the source to the receptacles. The channel has first through fourth discharge apertures positioned, respectively, above the first and second openings, which are substantially coplanar. The upper edges of the bins, the openings, and the discharge apertures define mechanisms for gravity feeding material into the first bin through the first discharge aperture and the first opening until the material reaches the height of the first discharge aperture, for stopping flow through the first discharge aperture while the first bin stores the conveyed material gravity fed therein, for gravity feeding material from the distributing mechanism into the second bin through the second discharge aperture and the second opening, after flow to the first bin has been stopped, until the material reaches the height of the second discharge aperture, and for stopping flow through the second discharge aperture to the second bin while the second bin stores material gravity fed therein. Filling proceeds as described to the other bins.
|
