Seed drill
US4580508A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1985 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Mar 19, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A seed drill for outputting seed material and fertilizer, having a frame that supports itself on the soil via runners, at least one supply container unit for seed material and fertilizer, and cultivator, chisel or hoe shares arranged in rows one behind the other and movable in a vertical plane, the materials being conveyed to said shares in adjustable amounts via tubular lines and under gravity for placing into the soil. The shares are guided separately from one another by a depth guidance mechanism for their depth of penetration into the soil. To prevent risk of clogging when using on soil surfaces covered with a multitude of plant residues, harvested sunflower or wheat fields for example, and at the same time achieve a low construction and thus ease of filling of said supply containers, the distance (R) of the shares to one another in the rows running transversely to the direction of movement is at least about 60 cm, one supply container unit each is provided for about half the number of shares, and the lower areas of the supply container units are arranged at a distance (D) one behind the other, as seen in the direction of movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.