Planting – Drilling – Having depositor feature
Patent
1989-10-16
1991-03-12
DeMille, Danton D.
Planting
Drilling
Having depositor feature
111121, 111167, 172558, 172754, A01C 706, A01C 508, A01B 4906
Patent
active
049984888
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a combined machine in accordance with the preamble to claim 1.
2. History of the Related Art
Combined machines for simultaneous spreading of seed and commercial fertilizer in agriculture are known, e.g. from the U.S. Pat. No. 3,213,812, which illustrates an apparatus with two mutually, relatively fixed outlet nozzles, arranged side by side and at different working depths under the earth surface. One condition for the apparatus is that earth can be led in between the nozzles (see FIG. 5 of the patent specification), i.e. that the apparatus is intended for fields which are worked by ploughing and harrowing, or in some other way. For sowing seed directly into place in the earth, i.e. farming without ploughing it has been necessary to supply fertilizer in a separate pass or on top of the earth. In addition, the combination sowing machines have only been able to place fertilizer between alternate rows of seed.
Another known technique is apparent from SE 130,953, which is an apparatus for use in sowing directly onto unworked ground.
SUMMARY OF THE INVENTION
The object of the invention is to solve the above mentioned problems and to develop an apparatus for combined dispensing, e.g. of seed and fertilizer in direct sowing by simultaneous insertion into the earth and such that the distance laterally between seed and fertilizer may be varied to desired values, while the depths of insertion under the earth surface can be adjusted to different, desired values quite independent of each other. This signifies a great advantage, since different combinations of seed types and fertilizer types as well as the character and composition of different earths require different procedures for dispensing and distribution.
The object is achieved by the invention having been given the characterizing features disclosed in the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described with the aid of an embodiment example and in connection with the attached drawings, where
FIG. 1 is a perspective view of the apparatus seen obliquely from the front in relation to the working direction,
FIG. 2 illustrates the lower part of the apparatus in FIG. 1 seen from one side,
FIG. 3 illustrates the apparatus from behind,
FIG. 4 is a partially sectioned view transverse the working direction of the bottom most part of the apparatus in FIG. 3 while working in the ground,
FIG. 5 is a section according to V--V in FIG. 4 after the apparatus has completed dispensing at different depths,
FIG. 6 is a schematic view from above, illustrating lateral dispensing according to VI--VI in FIG. 5,
FIG. 7 is a section seen from above according to VII--VII in FIG. 2,
FIG. 8 is a corresponding view according to VIII--VIII in FIG. 2.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIG. 1 the numeral 1 denotes the coulter arm of a disc coulter 2 and a combination share 7, including a discharge pipe 5 for fertilizer and a discharge pipe 6 for seed. Seed and fertilizer are fed to the outlet means 6 and 5 via the feed pipes 8 and 9. The clamp 12 is connected to the coulter arm 1 with the aid of three screws 13. An elastic element 18, e.g. of rubber, is arranged between the clamp 12 and the arm 1. The position and direction of the combination share 7 can be varied within certain limits by tightening the three screws 13 to different amounts. A clip 19 is provided for keeping the feed pipes 8 and 9 together.
FIG. 1 also illustrates a share 3, which is fixed to the forward portion of the discharge pipe 6 for seed, and this pipe has a forwardly-downwardly directed share 4 at its lower portion. When the share moves in the working direction 15 through the earth, the share 4 will be subjected to a downwardly directed force. This facilitates the travel of the feed means in earth which is hard or which contains plant residue.
In FIG. 2 the denotations are the same as in FIG. 1 for the same details, and the arrow 15 denotes the working direction of the disc coulter 2.
FIG. 3 illust
REFERENCES:
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Conserva Pak Seeder from Vale Farms Ltd., P.O. Box 417, Indian Head, Sask, Canada, Sales Leaflet, Jun. 1984.
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