DE1270874B - Precision seeder with cell wheel - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

AOIc

German class: 45 b -7/04

Number:
File number:
Registration date:
Display day:

1270 874
P 12 70 874.6-23
September 16, 1961
June 20, 1968

The invention relates to a single-grain seeder with a bucket wheel, in which the cells are made in one piece formed ring insert of such flexibility that all walls of the cells under the Pressure of the seeds can evade, are arranged and in which a circumferential groove guided through the row of cells for the engagement of an ejector of smaller width and preferably greater depth than the cells provided, and represents a Another advantageous embodiment of the precision seeder according to patent 1138 269.

Another prior patent relates to a cell feeder for precision seed drills, at to which the walls of the individual cells, which are subjected to pressure when conveying, are resilient and at it is provided that behind a rear wall of each cell that pushes the seed forward, there are cavities or columns are arranged which are closed against the entry of seeds. These Cavities or gaps serve to evacuate the cell walls under the pressure of the Support seeds.

In contrast, the invention provides that when further recesses are arranged in the ring insert, which support the evacuation of the cell walls under the pressure of the seeds, these further recesses are arranged on the inside of the ring insert below the cells. The further recesses are therefore not located behind the one that moves the seed Back wall of each cell or between the cells, but on the inside of the ring insert below of cells.

In the embodiment according to the invention, the further recesses are preferably of the ring insert formed by an annular groove provided on the inside thereof.

The inventive training is in contrast to the embodiment according to the older Patent does not affect the transport of the seeds through the cellular wheel, because the recesses do not protrude into the area of the cells or between them, but on the inside of the Ring insert are arranged below the cells. Furthermore, the training according to the invention enables also a better absorption of thicker grains than the version of the earlier patent, because the cell walls as a result of the further recesses provided on the underside of the ring insert can give inward enough under the pressure of the seeds.

In the drawing is an embodiment of the precision seeder with a bucket wheel

Addendum to the patent: 1138 269

Applicant:

H. Fähse & Co., 5160 Düren, Schulstr. 51

Named as inventor:

Heinrich Gugenhan, 5160 Düren

Cell wheel of the seeder according to the invention shown, namely shows

A b b. 1 a cellular wheel as well as a stripping roller cooperating with this in vertical cross-section, where in one cell of the cell wheel there is a seed of normal size,

Fig. 2 the bucket wheel and the one that interacts with it Wiper roller according to Fig. 1 in vertical cross-section, with an oversized seed in one cell of the cell wheel, and

Fig. 3 shows the ring insert of the cell wheel according to Figs. 1 and 2 in vertical cross section.

The cellular wheel α, with which the stripping roller c cooperates, has on its circumference an annular groove g, into which a one-piece ring insert h made of resilient material such as rubber, foam or the like. Is inserted. This ring insert has recesses of circular shape which form cells i. Furthermore, a circumferential groove k, which is guided through the row of cells and is smaller in width and greater in depth than the cells, is provided in the ring insert h.

On its inside, the ring insert h also has an annular groove? Which is arranged at a distance below the cells i and is separated from them by a web?. The ring groove has a dovetail-like profile. The annular groove results in flanges m running all around on the inside of the annular insert h with inner surfaces m ¹ inclined obliquely outwards from the inside .

If seeds of normal size are taken up by the cells / the ring insert h of the cell wheel α, the ring insert h retains its normal

809 560/31

position as shown in Fig. 1. If, on the other hand, the cells in the ring insert h of the cell wheel α pick up oversized seeds, the ring insert is deformed under the action of these seeds when they come into engagement with the stripping roller and a guide bar following it, as shown in Fig. 2. As a result of the annular groove I of the annular insert h, it is able to yield to a sufficient extent.

Claims (2)

Claims: 10 1. Precision seeder with star feeder according to patent 1138 269, in which the cells in a integrally formed ring insert and are of such resilience that all Walls of the cells can give way under the pressure of the seeds, and in which to * An ejector engages a circumferential groove of smaller width guided through the row of cells and preferably greater depth than the cells are provided, characterized in, that with the arrangement of further recesses in the ring insert (A), which avoid the Cell walls under the pressure of the seeds support these further recesses are arranged on the inside of the ring insert below the cells (?). 2. Precision seeder according to spoke 1, characterized in that the further recesses of the ring insert Qi) are formed by an annular groove (Z) provided on the inside thereof. Considered publications:
German patent specification No. 936119. Legacy Patents Considered:
German Patent No. 1195 080. 1 sheet of drawings 809 560/31 6.68 © Bundesdruckerei Berlin