DE1170185B - Rakes for agricultural purposes - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Boarding school KX: AOIb

Number:
File number:
Registration date:
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German class: 45 a - 1/00

1170185
H 46564 III / 45 a
7th August 1962
May 14, 1964

The invention relates to a rake, e.g. B. hand rake, for agricultural purposes. For cutting off weeds and dividing arable topsoil Field planes are known that have a perforation, sharpened on their working edge Consist plate, which is provided on its surface with a sharp angled stem and should be moved back and forth a little below the surface of the ground in order to cut off the weeds and at the same time by means of their perforations to bring about a division of the topsoil.

Since the plate is used little below the surface of the earth, the weeds are only removed from cut off its roots and there is no way of separating the weeds from the soil, about to sift out of the ground. Rather, the weeds remain on the ground in order to dry up while the roots remain in the ground and produce new weeds.

A hoe with a share angled from a handle is also known, in which the share with Recesses are provided in a single row and at a considerable distance from each other and provided by the working edge of the share. Even with this device, the weeds cannot grow Soil separated, about to be screened out, because this is in front of the working edge below the coulter recesses would jam even if the hoe was used as a rake contrary to its intended purpose.

In another known hoe share teeth are arranged below window-like recesses on the working edge of the share, which are also sharpened Working edges are provided. This group is also due to the window-like recesses not suitable for sieving out small weeds. It is true that the well-known coulter below the tines can be a Be attached to the rake, but the rake is relieved of its eigenfunction.

With the two hoe-like implements discussed last, the work becomes similar to a spade performed. The window-shaped recesses on both hooks are intended for heavy Primeval forest equipment reduce the weight and at the same time prevent it from becoming too wet in the case of moist soils Dirt adheres to the coulter.

In contrast to the known devices, the invention relates to a rake, and the invention lies in the The task is not only to loosen up weeds, but also by sieving the soil to separate and remove in order to rake in this way for agricultural purposes

Applicant:
Albert Hundeborn,
Holm-Seppensen, in the north heath

Named as inventor:

Albert Hundeborn, Holm-Seppensen

Effective control of weeds. This will be done after the

The invention is achieved in that, instead of the rake prongs, a sieve surface is provided, the passages of which and remaining surface webs are coordinated so that co-formulants of the soil, in particular freshly emerged small weeds are retained by the sieve and only weed-free soil the sieve happens.

A major advantage of the rake according to the invention is that when using the conventional Calculate necessary two operations to be combined into just one operation by both the previously necessary previous chopping of the ground and the subsequent raking of the Weeds can be carried out with just one device, with a further advantage that even that the smallest freshly emerged weeds and the finest weed roots are sifted out of the soil, which cannot be achieved with conventional rakes.

When garden paths and beds are only once thoroughly with the rake according to the invention in the spring are cleaned, experiments have shown that they remain weed-free throughout the summer. One Cleaning, carried out in spring, usually only needs to be repeated in autumn, if the seeds of the summer-ripened weeds come in from the wind or other influences the garden blown and accrued.

In a preferred embodiment of the invention it is provided that the screen mesh of round or polygonal, mutually offset, blunt-edged holes are formed. This achieves that a Avoid separating the weeds from their roots, thanks to those remaining on the working edge Barriers, loosened weeds are separated from the ground by their roots and held back by the blunt-edged holes. The same one The purpose also serves the feature according to the invention,

4M 589/138

that the tooth-shaped hole webs remaining on the edge facing the ground are also blunt-edged are.

In a further embodiment it is provided according to the invention that one of the rows of stitches in the angled Corner of the sieve surface is provided. This avoids that topsoil is in the angled corner of the sieve surface. If nevertheless humus soil together with the weeds should be withheld, the rake according to the invention can be used as a hand sieve. In order to when sieving the weeds cannot emerge on both sides of the sieve surface, is a further embodiment the invention provides that the screen surface is provided on both sides with angled tabs.

An embodiment of the device according to the invention is illustrated in the drawing. It shows

F i g. 1 is a partial end view of the screen surface and

F i g. 2 shows a cross-section through the rake in verse * ° smaller scale.

The screen surface is denoted by 1, of which a part la (Fig. 2) is bent at right angles, on which a grommet 5 for a device handle 6 is attached. The sieve surface has round or polygonal holes 3 provided, which are offset to one another and are blunt-edged. Also in corner 4 of the sieve surface are there such blunt-edged holes. The working edge of the sieve surface facing the ground is formed by also blunt-ended webs that remained when the sieve surface was perforated.

Angled tabs 7 are provided on both sides of the sieve surface 1, the edges of which are hypotenuses of right-angled triangles connecting the parts 1 and 1 α and which, together with the work surface 1 and its angled part la, form a vibrating sieve box which, when activated, sifts off humus soil adhering to weeds by means of the rake handle can be.

When working with the rake according to the invention, the weeds with their roots are out of the ground pulled out and remains in front of the sieve surface when raking, while the soil or humus soil is sieved through the holes in the sieve surface. Retained humus soil that has not been sieved out can be sifted out afterwards by holding down the rake and shaking it several times, so that with Safety only weeds that have been freed from the ground are left behind and can be discarded.

Claims (5)

Patent claims: 1. Rake, e.g. B. Hand rake, for agricultural Purposes, characterized that a sieve surface (1) is provided in place of the prongs, the passages and remaining surface webs so on top of one another are coordinated that formulas of the soil, especially freshly emerged small weeds, is retained by the sieve and only weed-free soil passes through the sieve. 2. Rake according to claim 1, characterized in that the screen mesh of round or polygonal, mutually offset, blunt-edged holes (3) are formed. 3. rake according to claims 1 or 2, characterized in that one of the courses is provided in the angled corner (4) of the screen surface (1). 4. Rake according to one of claims 1 to 3, characterized in that on the ground facing edge blunt-ended webs (2) are provided. 5. Rake according to one of claims 1 to 4, characterized in that the sieve surface (1) is provided on both sides with angled tabs (7). Considered publications:
Swiss Patent No. 127 465;
U.S. Patent Nos. 1,554,734, 1167,971,
805 289. 1 sheet of drawings 409 589/138 5.64 © Bundesdruckerei Berlia