Article dispensing – With discharge assistant – Plural or combined with manipulating means
Patent
1982-08-10
1985-05-14
Bartuska, F. J.
Article dispensing
With discharge assistant
Plural or combined with manipulating means
221266, 221278, A01C 704
Patent
active
045166900
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an apparatus for planting seeds in drills at predetermined intervals, comprising a housing with a seed store and movable spoons which are adapted each to pick up one seed in the seed store and to consecutively discharge the seed in an outlet duct.
As disclosed in SE published application No. 300,326, a seed planting assembly has a series of spoons which are arranged on a disc which is rotatable in a vertical plane and whose lower portion forms a wall in a seed store. When the spoons during the rotation of the disc pass through the seed store, they will each entrain one seed or a certain quantity of seeds. The spoons travel over a duct leading to the ground and, when passing over the duct, are titled such that the seeds drop into the duct and pass through it to the ground. Since the individual seeds will drop from the spoons at different angles of tilting thereof, the seeds will leave the spoons in different positions thereof above the duct. Hence, in seed planting assemblies of this design the intervals between the individual seeds will vary to a considerable extent. Moreover, the means for tilting the spoons in seeders of this type are bulky, which means that the overall width of the assembly will become substantial, this in turn entailing that the minimum distance between the drills will become relatively large.
In a device as disclosed in SE published application No. 414,988, the spoons, as in the above-mentioned device, pass a seed store and each picks up one seed. under the joint action of gravity and centrifugal force, the seeds are caused to leave the spoons and are flung into a duct which leads to the ground. For its operation, the apparatus depends upon the speed of rotation of the spoon-carrying wheel, this speed in turn depending on the rate at which the plant seeding assembly is advanced.
The object of the present invention is, while using a spoon system as described above, ensuring gentle handling of the seeds, to increase the accuracy of the seed planting assembly to a considerable extent and to improve operational reliability. According to the invention, this object is achieved in that means are provided for selectively transporting the seed from the spoon to the outlet duct by means of compressed air.
"Compressed air"]in the following description and in the claims refers to air with a relatively slight overpressure, i.e. in principle a weak jet of air.
The invention will be described in greater detail herebelow with reference to the accompanying drawings showing one embodiment and in which
FIG. 1 shows a seed planting assembly according to the invention,
FIG. 2 is a section taken along the line II--II in FIG. 1,
FIG. 3 is a section taken along the line III--III in FIG. 1, and
FIG. 4 shows a spoon 8 in sectional view taken along the line IV--IV in FIG. 3.
In FIG. 1 of the drawings, reference numeral 17 generally designates a seed planting assembly which may be of a conventional design and be connected to the chassis of the seed planting machine by support means 18 and 19. At its lower portion, the assembly 17 has a device 20 which is in contact with the ground and which may also be of a conventional design. The seed planting assembly has a supporting plate 22 on which a cylinder wall 9 is fixed along one of its base surfaces. The cylinder wall 9 has a cover 21 extending over the opposite base surface, and it is apparent that the plate 22, the cylinder 9 and the cover 21 together define a chamber 1. A channel 2 extending from a seed store tank 3 opens in the cylinder wall 9. A shaft 5 centrally disposed in the chamber 1 is rotatably mounted in the plate 22 as shown at 4. The shaft 5 extends through the plate 22 and carries on its end remote from the chamber 1 a sprocket wheel 6 with which a chain engages to rotate the shaft 5 and a circular wheel 7 mounted on the end of the shaft that is located in the chamber. Spoons 8 are fixed around the periphery of the wheel 7 in such a manner that they project obliquely out from the wheel periphery as will be appreciated
REFERENCES:
patent: 2737314 (1956-03-01), Anderson
patent: 2855125 (1958-10-01), Grimsbo
patent: 4162744 (1979-07-01), Barker et al.
LandOfFree
Apparatus for planting seeds in drills at predetermined interval does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for planting seeds in drills at predetermined interval, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for planting seeds in drills at predetermined interval will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-764287