GB2121262A - A seed drill - Google Patents
A seed drill Download PDFInfo
- Publication number
- GB2121262A GB2121262A GB08310147A GB8310147A GB2121262A GB 2121262 A GB2121262 A GB 2121262A GB 08310147 A GB08310147 A GB 08310147A GB 8310147 A GB8310147 A GB 8310147A GB 2121262 A GB2121262 A GB 2121262A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sowing
- disposed
- seed drill
- coulter
- wheels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
- A01C7/201—Mounting of the seeding tools
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Sowing (AREA)
Abstract
A sowing machine or seed drill including a frame and a hopper or storage container, drivable metering members being disposed in the lower portion of said hopper, and the material to be distributed being supplied in adjustable quantities from the metering members, via feed pipes, to sowing coulters which are staggered in at least two transverse rows and are offset relative to each other in the direction of travel on coulter support bars extending transversely to the direction of travel, the metering members being driven by wheels, or drive wheels, which travel along the ground. At least two coulter support bars (14, 15) are disposed behind each other with a spacing (A) therebetween, and the sowing coulters (5) are disposed on each such bar and are disposed behind each other with a spacing (a) therebetween. <IMAGE>
Description
SPECIFICATION
A seed drill
The invention relates to a sowing machine including a frame and a hopper, drivable metering
members being disposed in a lower region of said
hopper, and material to be distributed being
supplied in adjustable quantities from the
metering members, via feed pipes, to sowing
coulters which are staggered in at least two
transverse rows and are offset relative to each
other in the direction of travel on coulter support
bars extending transversely to the direction of
travel, the metering members being driven by
wheels or drive wheels, which travel along the
ground.
A sowing machine or seed drill is disciosed in
German Offenlegungsschrift No. 2114 467 which
is particularly renowned for the narrow
spacings between the rows of coulters. Such
springs permit the seeds to be deposited in rows
disposed very closely together; i.e. so-called close
sowing is achieved, or respectively a very uniform
distribution of the seeds over the whole area is
achieved. The more uniformly the seeds are
distributed over the area and the closer to the
"ideal distribution" one comes when sowing the
seeds, the greater the yield is. Consequently,
considerably increased yields can be obtained by
close sowing compared with the sowing of seeds
in widely spaced apart rows.
However, a disadvantage of this sowing
machine is that the intermediate spaces between
the coulters very easily become blocked by plant
remains situated on the surface of the ground, or
by large clods of earth, so that satisfactory seed
sowing is not possible.
Furthermore, this sowing machine is
considerably disadvantageous in that the wheels
of the sowing machine are disposed outside the
working width of the sowing machine. In this way
there is always one wheel travelling along the field
which has already been sown, and this wheel
therefore compresses the soil. Because of the
pressure exerted by the wheels of the sowing
machine, the seeds disposed in the compressed
wheel tracks have very poor conditions for
germination. During rain showers, there is also the
risk of the wheel tracks becoming flooded or being
washed away by the rain and the rain water which
drains away.
The invention seeks to achieve a compact
structure for an attachment-type sowing machine
or seed drill, or for a drill which is to be used on its
own or combined with ground cultivating
implements, especially for large working widths
with narrow spacings of 6 to 10 cm between the
vowing rows, while simultaneously ensuring
blockage-free sowing.
According to the present invention there is
provided a sowing machine or seed drill including
a frame and a hopper, drivable metering members
being disposed in a lower region of said hopper,
and material to be distributed being supplied in
adjustable quantities from the metering members, via feed pipes, to sowing coulters which are staggered in at least two transverse rows and are offset relative to each other in the direction of travel on coulter support bars extending transversely to the direction of travel, the metering members being driven by wheels or drive wheels, which travel along the ground, characterised in that at least two coulter support bars (14, 15, 29) are disposed behind each other with a spacing (A) therebetween, and the sowing coulters (5) are disposed on each coulter support bar (14, 15, 29) in at leasttwo transverse rows (16,16', 17,17') extending transversely to the direction of travel (18) and being disposed behind each other with a spacing (q, q') therebetween. As a result of these measures, the individual sowing coulters can be disposed with large spacings between each other, even when the rows are very close together. In addition, by arranging the sowing coulters on two coulter support bars, relatively short coulter supports are possible, so that only very small forces are transferred from the sowing coulters to the coulter support hinge joints.
So that the sowing coulters in the first two transverse rows can move unrestrictedly in an upright plane in order to deflect obstacles in such manner, the spacing between the two coulter support bars is selected in accordance with the features described in claims 2 and 3, respectively.
The invention also provides that the rear coulter support bar is disposed behind the wheels. This permits in simple manner a few sowing coulters to be disposed even in the region behind the wheels, so that the wheels are situated within the working width.
In a preferred arrangement, the rear coulter support bar is detachably mounted. This feature permits the spacing between the sowing rows to be doubled in simple manner when the rear coulter support bar, together with the sowing coulters, is removed. An increased spacing between the sowing rows is also achieved by providing a drill in which the rear coulter support bar (1 5) has sowing coulters (5) disposed in two transverse rows (16', 17') lying one behind the other, and the rear coulter support bar (1 5) may be substituted by another coulter support bar having sowing coulters disposed in one transverse row.
In preferred arrangement, the sowing machine has a working width of more than 3 m, and at least one wheel is disposed on at least one end of the coulter support bars, and this wheel is disposed from outside beside some of the sowing coulters, the drive members of the wheel for driving the metering members being disposed on the end of the wheel remote from the sowing coulters. As a result of these measures, the wheels of sowing machines having very large working widths can be disposed very close to the sowing coulters. It is also possible to dispose the wheels within the working width of the sowing machine to a greater or lesser extent.
This is extremely important, especially when the sowing machine is combined with ground cultivating implements, since satisfactory, uniform sowing is ensured only when the wheels are disposed within the working width and travel along the worked surface of the soil.
The invention will be described further, by way of example, with reference to the accompanying drawings, in which:
Fig. 1 is a side elevational view of a sowing
machine or seed drill according to the invention combined with ground cultivating implements;
Fig. 2 is a front view of a wheel disposed in accordance with the invention;
Fig. 3 is a sectional, plan view taken along the line Ill-Ill showing the arrangement of the sowing coulters;
Fig. 4 illustrates a modified arrangement of the sowing coulters similar to the view of Fig; 3;
Fig. 5 is a side elevational view showing a further arrangement, according to the invention, of the coulter support bar and the sowing coulters; and
Fig. 6 is a plan view of a wheel which is formed in accordance with the invention.
A sowing machine or seed drill 1 has a working width of more than 3 m and includes a frame 2 and a hopper 3 and has known metering members (which are therefore not shown) disposed in a lower region of said hopper and the seeds, which are disposed in the hopper 3, are supplied from the metering members to sowing coulters 5 via feed pipes 4. The metering members are driven by wheels 7, which travel along the ground 6, and by a variable speed transmission 8. The seed drill 1 is disposed behind a combination-type ground cultivator, comprising a rotary cultivator 9 and a packer roller 10, and the seed drill 1 is connected to the combination-type ground cultivator by support arms 11 and an upper guide member which is in the form of a hydraulic cylinder 12.If the entire sowing combination, comprising the rotary cultivator 9, the packer roller 10 and the seed drill 1, is raised by a tractor (not shown), the seed drill 1 can be pivoted forwardly about the pivotal axle i 3 by means of the hydraulic cylinder 12. The overall centre of gravity of the sowing combination is forwardly dispiaced, so that the lifting force required by the power lift of the tractor to raise the sowing combination is reduced by up to 30%.
The sowing coulters 5 are mounted on two coulter support bars 14 and 1 5 which are disposed behind each other with a spacing A therebetween; the front coulter support bar 14 being situated between the wheels 7. On each coulter support bar 14 and 15, the sowing coulters 5 are staggered in two transverse rows 16 and 1 7 and are offset relative to each other in the direction of travel 1 8. The spacing A between the coulter support bars 1 4 and 1 5 corresponds to at least the sum of the effective coulter length S of the sowing coulter 5 in the first transverse row 1 6 and the spacing q between the sowing coulters 5 in the first and second transverse rows 1 6 and 17, respectively.This causes the spacing A to be a dimension distance which corresponds to the spacing between the hinge joint 1 9 of a sowing coulter 5 in the first transverse row 1 6 and the rearmost portion 20 of a sowing coulter 5 in the second transverse row. Thus, the sowing coulters 5 in the second transverse row 1 7 can also deflect upwardly in an unrestricted manner. In addition, each of the coulter support bars 14 and 15, when viewed with respect to the direction of travel 1 S, is disposed in the respective region above the hinge joints 1 9 of the coulter supports for the sowing coulters 5 in the first and third transverse rows 1 6 and 16', respectively.In this case, the front coulter support bar 14 is situated in the front region of the wheels 7.
The rear coulter support bar 15, on which the sowing coulters 5 are also disposed in two transverse rows 16' and 17', is detachably
mounted on the frame 2 behind the wheels 7. In this way, the coulter support bar 15, together with the sowing coulters 5, may be substituted by
another coulter support bar having sowing coulters disposed, for example, in only one transverse row. Furthermore, by removing the rear coulter support bar 1 5 and by using the seed
drilling without the rear coulter support bar 1 5, it
is possible to deposit the seeds in sowing rows which are spaced further apart from each other.
According to the embodiments illustrated iri Figs. 3 and 4, the spacing B between the sowing coulters 5 in each transverse rows 16, 16', 17 and
17' corresponds to the spacing C between the sowing rows multiplied by the number of transverse rows. In addition, the sowing coulters 5
in the second transverse row are disposed
centrally between the sowing coulters 5 of the first transverse row when viewed transversely to the direction of travel 1 8. The sowing coulters 5 of the third transverse row 1 6' are laterally offset
relative to the sowing coulters 5 of the second
transverse row 17 by an amount corresponding to
the spacing C between the sowing rows.In
addition, the sowing coulters 5 of the fourth transverse row 17' are disposed centrally between the sowing coulters 5 of the third transverse row
16' when viewed transversely to the direction of travel 1 8. Finally, the spacing q' between the
second transverse row 1 7 and the third transverse
row 16' is greater than the spacings q between
the first and second transverse rows, or
respectively between the third and fourth
transverse rows.
Each wheel 7 is rotatably mounted on wheel
support frame 21, and the portions of the frame 2
are rotatably mounted thereon. The variable speed
transmission 8 and the metering members are
driven by drive members 22 disposed within the
wheel support frame 21. Each of the wheel
support frames 21 is disposed on the side 23 of
the respective wheel 7 remote from the inside of
the sowing machine, so that the drive members
22 are also disposed on the side 23 of the
respective wheel 7 remote from the inside of the
sowing machine. In addition, the wheels 7 are so
disposed within the working width D of the drill 1
that centre 24 of the wheel 7 is approximately in
alignment with the outer edge of the working width D. A track marker or tramlining device 25 is pivotally mounted on the wheel support frame 21.
Furthermore, the wheels are mounted so as to be laterally displaceable on the wheel support frame 21,so that they can be set, in optimum manner, to the working width in dependence on the spacing between the sowing rows. In addition, the wheel support frame 21 illustrated in Fig. 2 and flange 26 (shown by dash-dot lines) can be detachably disposed on the frame 2. -
In order to ensure blockage-free sowing of the sowing coulters 5 also in the region of the wheels 7, the sowing coulter 5', which is disposed the nearest to the respective wheel 7, -is mounted in the region of the surface 27 of the wheel which is in contact with the ground. Thus, any objects which may possibly become jammed between the wheel and the sowing coulter are moved rearwardly because of the movement of the wheel relative to the sowing coulter 5'. No blockage therefore occurs.A sowing coulter 5 from the first transverse row 16 will be disposed beside the respective wheel 7, particularly when the drills are intended to be used in combination with ground cultivating machines. It has also proved advantageous to dispose the outermost sowing coulter 5" behind its respective wheel 7. In this case, a track loosener 28 is mounted on the coulter support bar behind each wheel 7.
The coulter arrangements illustrated in Figs. 3 and 4 essentially differ only in the arrangement of the sowing coulters 5 in the region of the wheels 7. With very close spacings of, for example approximately 6 cm between the sowing rows, it is necessary to dispose the two outer sowing coulters 5 in the two rear transverse rows 16' and
1 7' very closely together in the edge region of the working width. It was unexpectedly found that no blockages occur here in the region of the wheels 7.
A rear coulter support bar 29 according to the embodiment illustrated in Fig. 5, when viewed with respect to the direction of travel 18, is disposed behind the hinge joints 1 9 of the sowing coulters 5 in the third transverse row 16'. In this case, supports 30 protrude forwardly, each support 30 being mounted on the coulter support bar 29. The sowing coulters 5 of the transverse
row 16' are pivotally mounted on these supports 30. In addition, the spacings between the
individual transverse rows are identical to each other.
Fig. 6 illustrates a specially formed wheel 31.
This wheel 31 comprises the two narrow wheels 31' and 31" which are spaced from each other with a spacing R therebetween. The spacing R
corresponds approximately to the spacing
between the sowing rows. A sowing coulter 5,
when viewed with respect to the direction of travel 18, is disposed behind the wheel 31
between the wheel tracks 32 produced by the
wheels 31' and 31", so that this sowing coulter 5
is situated in a non-compressed region, and there
is therefore no need for a track loosener to be
provided.
Claims (28)
1. A sowing machine or seed drill including a frame and a hopper, drivable metering members being disposed in a lower region of said hopper, and material to be distributed being supplied in adjustable quantities from the metering members via feed pipes, to sowing coulters which are staggered in at least two transverse rows and are offset relative to each other in the direction of travel on coulter support bars extending transversely to the direction of travel, the metering members being driven by wheels or drive wheels, which travel along the ground, characterised in that at least two coulter support bars ('14, 15, 29) are disposed behind each other with a spacing (A) therebetween, and the sowing coulters (5) are disposed on each coulter support bar (14, 1 5, 29) in at least two transverse rows (16, 16', 17, 17') extending transversely to the direction of travel (1 8) and being disposed behind each other with a space (q, q') therebetween.
2. A seed drill as claimed in claim 1, in which the spacing (A) between the coulter support bars (14, 15) corresponds to at least the sum of the coulter length (S) of the sowing coulter (5) in the first transverse row (16) and the spacing (q) between the sowing coulters (5) in the first and second transverse rows (16, 17).
-
3. A seed drill as claimed in claim 1 or 2, in which the spacing (A) between the coulter support bars (1 4, 1 5) corresponds to at least the spacing between the hinge joint (19) of a sowing coulter (5) in the first transverse row (16) and the rearmost portion (20) of a sowing coulter (5) in the second transverse row (17).
4. A seed drill as claimed in claim 1, in which the rear coulter support bar (15) is disposed behind the wheels (7).
5. A seed drill as claimed in claim 4, in which the rear coulter support bar (15) is detachably mounted.
6. A seed drill as claimed in claim 5, in which the rear coulter support bar (1 5) has sowing coulters (5) disposed in two transverse rows (16', 17') lying one behind the other, and the rear coulter support bar (1 5) may be substituted by another coulter support bar having sowing coulters disposed in one transverse row.
7. A seed drill as claimed in claim 1, in which the spacing (B) between the sowing coulters (5) in each transverse row (16,16', 17, 17') corresponds to the spacing (C) between the sowing rows multiplied by the number of transverse rows (16, 16', 17, 17'); in which the sowing coulters (5) in the second transverse row (17) are disposed centrally between the sowing coulters (5) in the first transverse row (16) when viewed transversely to the direction of travel (1 8); in which the sowing coulters (5) of the third transverse row (16') are laterally offset to the left or right of the sowing coulters (5) of the second transverse row (17) by an amount corresponding to the spaving (C) between the sowing rows; and in which the sowing coulters (5) of the fourth transverse row (17') are disposed centrally between the sowing coulters (5) of the third transverse row (16') when viewed transversely to the direction of travel (1 8).
8. A seed drill as claimed in any one of the preceding claims, in which the spacing (q') between the second transverse row (1 7) and the third transverse row (16') is greater than the spacing (q) between the first and second transverse rows (1 6, 17), or respectively between the third and fourth transverse rows (1 6', 17').
9. A seed drill as claimed in claim 1, in which the front coulter support bar (14) and the rear coulter support bar (15), when viewed with respect to the direction of travel (1 8), are disposed in the respective region above the hinge joint (19) of the coulter supports for the sowing coulters (5) in the first and third transverse rows (1 6, 16'), respectively.
10. A seed drill as claimed in claim 1, in which the rear coulter support bar (29), when viewed with respect to the direction of travel (1 8), is disposed behind the hinge joints (19) of the
sowing coulters (5) in the third transverse row
(16').
11. A sowing machine or seed drill including a frame and a hopper, drivable metering members
being disposed in the lower portion of said hopper,
with the material to be distributed being supplied
in adjustable quantities from the metering
members, via feed pipes, to sowing coulters which
are staggered in at least two transverse rows and
are offset relative to each other in the direction of
travel on coulter support bars extending
transversely to the direction of travel, the metering
members being driven by wheels, or drive wheels,
which travel along the ground in which the sowing
machine (1) has a working width (D) of more than
3 m, at least one wheel (7) being disposed on at
least one end of the coulter support bars (14, 15,
29), said at least one wheel (7) being mounted
from outside beside some of the sowing coulters
(5), the drive means (22) of the wheel (7) for
driving the metering members being disposed on
the side (23) of the wheel (7) remote from the
sowing coulters (5).
12. A seed drill as claimed in claim 11, in which
the wheels (7) are disposed at least approximately
within the working width (D) of the sowing
machine (1).
13. A seed drill as claimed in claim 12, in which
the wheel centre (24), when viewed with respect
to the direction of travel (18), is at least
approximately in alignment with the outer edge of
the working width (D).
14. A seed drill as claimed in claim 1 in which
each wheel support frame (21) is disposed on the
side (23) of its respective wheel (7) remote from
the inside of the sowing machine.
1 5. A seed drill as claimed in claim 14, in which the drive members (22) for driving the metering members are disposed on the side (23) of the respective wheel (7) remote from the inside of the sowing machine.
16. A seed drill as claimed in claim 15, in which the drive members (22) for driving the metering members are disposed within the wheel support frame (21).
17. A seed drill as claimed in claim 1 in which the front coulter support bar (14) is disposed between the wheels (7), and the front coulter support bar (14) is disposed at least approximately in the front region of the wheels (7).
18. A seed drill as claimed in claim 14, in which each of the track removers/markers (tramlining device) (25) is disposed on the respective wheel support frame (21).
19. A seed drill as claimed in claim 14, in which the wheel support frame (21) is detachably mounted on the frame (2) of the drill (1).
20. A seed drill as claimed in claim 19, in which the wheel support frame (21) is displaceably mounted on the frame (2) of the drill (1).
21. A seed drill as claimed in claim 11 or 20, in which the wheels (7) are displaceably mounted on the wheel support frame (21).
22. A seed drill as claimed in one of the preceding claims, in which the sowing coulter (5') which is disposed the nearest to the respective wheel (7) is situated in the region of the surface (27) of the wheel which is in contact with the ground.
23. A seed drill as claimed in claim 22, in which a respective sowing coulter (5') of the first transverse row (1 6) is disposed adjacent the wheels (7).
24. A seed drill as claimed in one of the preceding claims, in which the outermost sowing coulters (5") of the working width (D) is disposed behind the respective wheel (7).
25. A seed drill as claimed in one of the preceding claims, in which two narrow wheels (31', 31") are disposed adjacent each other, and the narrow wheels (31', 31") are spaced from each other with a spacing (R) therebetween.
26. A seed drill as claimed in claim 25, in which the spacing (R) between the two narrow wheels (31', 31") corresponds approximately to the spacing (C) between the sowing rows.
27. A seed drill as claimed in claim 25, in which a sowing coulter (5), when viewed with respect to the direction of travel (1 8), is disposed behind the wheels (31', 31") in the region between the wheel tracks (32) produced by the wheels (31', 31").
28. A seed drill substantially as herein described and illustrated with reference to and as illustrated in Figs. 1 to 3 or as modified in any of
Figs. 4 to 6 of the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823214897 DE3214897C1 (en) | 1982-04-22 | 1982-04-22 | Sowing machine |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8310147D0 GB8310147D0 (en) | 1983-05-18 |
GB2121262A true GB2121262A (en) | 1983-12-21 |
GB2121262B GB2121262B (en) | 1985-11-06 |
Family
ID=6161584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08310147A Expired GB2121262B (en) | 1982-04-22 | 1983-04-14 | A seed drill |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE3214897C1 (en) |
DK (1) | DK100783A (en) |
FR (1) | FR2525427B1 (en) |
GB (1) | GB2121262B (en) |
NL (1) | NL8300901A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2203923A (en) * | 1987-03-28 | 1988-11-02 | Edward Donald Smallwood | Seed drill |
GB2354419A (en) * | 1999-09-22 | 2001-03-28 | Ingemar Bjurenvall | Method of and apparatus for crop production |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3616022A1 (en) * | 1986-05-13 | 1987-11-19 | Amazonen Werke Dreyer H | Seed drill |
DE3706383A1 (en) * | 1987-02-27 | 1988-09-08 | Amazonen Werke Dreyer H | Seed drill |
DE29710197U1 (en) * | 1997-06-11 | 1998-10-15 | RDZ Dutzi GmbH, 76698 Ubstadt-Weiher | Device for spreading seeds using the direct sowing method |
CN114747339B (en) * | 2022-03-18 | 2023-06-13 | 扬州大学 | Seed separating device of seeder |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE296048C (en) * | ||||
FR1427364A (en) * | 1964-04-09 | 1966-02-04 | Amazonen Werke H Dreyer Fa | Seed drill with coulters loaded by springs |
FR1419752A (en) * | 1964-10-16 | 1965-12-03 | Remy & Fils | Variable wheel spacing row seed drill |
DE1279408B (en) * | 1964-12-02 | 1968-10-03 | Amazonen Werke Dreyer H | Seed drill |
DE2114497A1 (en) | 1971-03-25 | 1972-10-12 | Gewerkschaft Schalker Eisenhütte, 4650 Gelsenkirchen | Coke oven charging car |
DE2114467A1 (en) * | 1971-03-25 | 1972-11-23 | Amazonen Werke H. Dreyer, 4501 Hasbergen-Gaste | Seed drill |
DE2622246C2 (en) * | 1976-05-19 | 1978-06-01 | Amazonen-Werke H. Dreyer Gmbh U. Co Kg, 4507 Hasbergen | Machine for spreading loose material |
GB1600488A (en) * | 1977-07-04 | 1981-10-14 | Massey Ferguson Perkins Ltd | Seed deposition apparatus |
FR2446053A1 (en) * | 1979-01-15 | 1980-08-08 | Amazonen Werke Dreyer H | Seed drill with mechanical drive - has land wheels inboard of outer frame and hopper edges and in front of drill shapes |
FR7900911A (en) | 1979-12-11 | 1900-01-01 | ||
DE3005996C2 (en) * | 1980-02-18 | 1981-09-03 | Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen | Seed drill |
-
1982
- 1982-04-22 DE DE19823214897 patent/DE3214897C1/en not_active Expired
-
1983
- 1983-02-28 DK DK100783A patent/DK100783A/en not_active Application Discontinuation
- 1983-03-11 NL NL8300901A patent/NL8300901A/en not_active Application Discontinuation
- 1983-04-14 GB GB08310147A patent/GB2121262B/en not_active Expired
- 1983-04-19 FR FR8306382A patent/FR2525427B1/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2203923A (en) * | 1987-03-28 | 1988-11-02 | Edward Donald Smallwood | Seed drill |
GB2354419A (en) * | 1999-09-22 | 2001-03-28 | Ingemar Bjurenvall | Method of and apparatus for crop production |
Also Published As
Publication number | Publication date |
---|---|
GB2121262B (en) | 1985-11-06 |
NL8300901A (en) | 1983-11-16 |
FR2525427A1 (en) | 1983-10-28 |
DK100783A (en) | 1983-10-23 |
GB8310147D0 (en) | 1983-05-18 |
FR2525427B1 (en) | 1987-10-16 |
DE3214897C1 (en) | 1983-12-29 |
DK100783D0 (en) | 1983-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4241674A (en) | Sub-soil planter | |
AU759731B2 (en) | Mid row banding coulter drill | |
EP1216608B1 (en) | Apparatus and method for clearing trash from furrow opener path | |
US4762075A (en) | Seed/fertilizer minimum tillage planter | |
US3701327A (en) | Planter and method of preparing soil | |
US5769170A (en) | Integrated soil cultivating apparatus | |
US6896068B2 (en) | Tillage implement with indexed harrow | |
US5357884A (en) | All purpose coulter drill | |
US4333534A (en) | Agricultural tool carrier | |
US5417293A (en) | Single pass continuous feed sprigger | |
EP0198563B1 (en) | An agricultural machine | |
GB2121262A (en) | A seed drill | |
JP4521075B2 (en) | Dry rice field direct sowing equipment | |
RU2714641C1 (en) | Strip tillage cultivator (versions) | |
EP0199406A1 (en) | A plough | |
EP0436975B1 (en) | A soil cultivating machine | |
WO1998003053A1 (en) | Integrated soil cultivating apparatus | |
AU2006201632B2 (en) | Seeder with trailing arm and hoe-type mid row bander | |
EA014578B1 (en) | Seeder | |
EP0166493B1 (en) | Soil cultivating implements | |
EP0201135B1 (en) | A soil cultivating machine | |
KR20200046312A (en) | Seeding machine | |
GB2333220A (en) | Combined cultivator and seed sower | |
CZ278389B6 (en) | Precision drill | |
RU48142U1 (en) | Soil cultivating tool |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |