Planting – Drilling – Furrow opener
Patent
1994-05-13
1995-05-23
Taylor, Dennis L.
Planting
Drilling
Furrow opener
111 52, 172156, 172166, 172572, A01C 500
Patent
active
054171725
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a seeder for forming a plurality of parallel rows of seed beds and then depositing seeds into the seed beds.
In order to form seed beds, the conventional conservation tillage seeders comprise a set of coulters to penetrate the ground surface and cut the stubble/straw and a set of tynes which follow the lines of the coulters to break and lift the soil and thereby complete forming the seed beds.
A disadvantage of the conventional conservation tillage seeders is that in many situations, particularly in soft sand conditions, the coulters only force the stubble to the sides and do not cut the stubble with the result that the following tynes are quickly blocked and consequently it is difficult to form the seed beds.
An object of the present invention is to provide a seeder which alleviates the disadvantages of conventional conservation tillage seeders described in the preceding paragraph.
According to the present invention there is provided a seeder for forming a plurality of parallel rows of seed beds in a ground surface, the seeder comprising, a plurality of coulters, each coulter having a central axis about which the coulter is freely-rotatable, and an assembly for supporting the coulters in sets of at least two coulters and for rotating the coulters so that the coulters in each set move in the same circular path about an axis tranverse to a forward direction of movement of the seeder at a rate sufficient for at least two of the coulters in each set to penetrate the same section of the ground surface and to move forwardly through the section to make multiple cuts to the stubble/grass in the section.
It is preferred that each set of coulters comprises two coulters spaced 180 degrees apart on the circular path.
It is preferred particularly that each set of coulters comprises four coulters arranged in pairs with the coulters in each pair being closely spaced and one coulter of a first pair being spaced 180.degree. from one coulter in a second pair and the other coulter of the first pair being spaced 180.degree. from the other coulter of the second pair.
It is preferred that the coulter support assembly comprises a drive shaft rotatable about the transverse axis and a plurality of arms mounted to the drive shaft at spaced intervals along the length of the drive shaft, with the coulters in each set of coulters being mounted to the arms.
It is preferred that the coulters be resiliently mounted to the arms to minimise damage to the coulters in the event that the coulters contact a hard object.
It is preferred that the seeder further comprises a plurality of tynes positioned to follow the coulters to break and lift the soil in the sections of the ground surface penetrated by the coulters to thereby form the seed beds.
It is preferred that the seeder further comprises a plurality of seeder tubes positioned to follow the tynes to deposit seeds in the seed beds.
It is preferred that the seeder further comprises a plurality of coulters positioned to follow the seeder tubes to reposition soil lifted from the ground surface to form the seed beds in the first instance back into the seed beds to cover the seeds.
The present invention is described further with reference to the accompanying drawings, in which:
FIG. 1 is a side view of a preferred embodiment of a seeder formed in accordance with the present invention,
FIG. 2 is a section along the line 2--2 in FIG. 1;
FIG. 3 is a section along the line 3--3 in FIG. 2;
FIG. 4 is a section along the line 4--4 in FIG. 2; and
FIG. 5 is a section along the line 5--5 in FIG. 3.
With particular reference to FIG. 1, the preferred embodiment of the seeder in accordance with the present invention comprises a frame formed from side bearers (not shown), transverse bearers (not shown), and triangular forward bearers 3 supporting a central draw bar 5 that is arranged in use to be connected to the towing hitch of a suitable towing vehicle such as a tractor.
The frame is supported towards its rear end by an axle assembly 9 that supports a pair of tire and wheel
REFERENCES:
patent: 1858749 (1932-05-01), Paterson et al.
patent: 2146492 (1939-02-01), Wiesenthal
patent: 2202091 (1940-05-01), Collins
patent: 2644387 (1953-07-01), Kamplade
patent: 3093196 (1963-06-01), Nakatani
patent: 3394669 (1968-07-01), Pas et al.
patent: 4043281 (1977-08-01), Sorlie et al.
patent: 4289081 (1981-09-01), Koronka
patent: 4726303 (1988-02-01), Deyelman et al.
Pezzito Robert
Taylor Dennis L.
LandOfFree
Seeder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Seeder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seeder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2134135