DE1274396B - Device for attachment to a tractor and for automatic steering of an agricultural soil cultivation device - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

AOIb

German class: 45 a-69/08

Number: 1 274 396

File number: P 12 74 396.3-23 (G 48813)

Filing date: December 21, 1966

Open date: August 1, 1968

The invention relates to a device to a provided with one or more support wheels to attach agricultural tillage equipment to a tractor and steer it automatically.

If automatic steering is not provided, such devices require - even with hydraulic Driven three-point hooking - if they are to be controlled independently of the tractor, another operator to help with changes in the direction of travel of the tractor Eliminate snaking movements of the device. Such meandering movements are particularly disadvantageous at grooming devices, where they cause irreparable damage when lined up Plants can cause.

A steerable tractor attachment or trailer device is already known, which has one on the steering elements the tractor's articulated compensating steering is provided, the attachment is by means of Hinges attached to the tractor, and a handlebar arranged as a double lever is on one Articulated at the end with the steering element of the tractor and at the rear end with the attachment tied together.

In the known device, the tool carrier is attached directly to the tractor. That has to As a result, when the tractor enters the curve, the tool at the rear end is already to the Page is panned.

In the case of a harrow with a frame on which two or more tine fields are attached, you have a three-point linkage is already provided on the tractor and a trestle is hinged to it; the front ends of two tension links attack its attachment core, while the rear ends Ends are connected to the device laterally pivotable.

It is the object of the invention to provide a device that can be used for growing an agricultural, with one or more support wheels provided tillage equipment on a tractor and for Steering the device is used to train so that the device working on or in the ground automatically so is steered so that not only snaking movements of the device are avoided, but also the axis position the support wheels are automatically changed when turning.

According to the invention, two traction arms are provided on the one hand, with their front end with a trestle hinged to the hitch arm of the three-point hitch on the tractor and with their rear end with the GeVorrichtung for mounting on a tractor
and to automatically steer one
agricultural tillage implement

Applicant:

Pieter Johannes Jacobus Greyling,

Heidelberg, Transvaal (South Africa)

Representative:

Dr. phil. W. P. Radt,

Dipl.-Ing. E. E. Finkener

and Dipl.-Ing. W. Ernesti, patent attorneys,

4630 Bochum, Heinrich-König-Str. 12th

Named as inventor:

Pieter Johannes Jacobus Greyling,

Heidelberg, Transvaal (South Africa)

Claimed priority:
South Africa of December 22, 1965 (6874),
dated February 17, 1966 (0889)

advises laterally pivotally connected, on the other hand, a steering linkage is provided, the one hand attacks on the trestle and on the other hand with the one or more steering the device Support wheels are connected in such a way that with a lateral movement of the device relative to the trestle and thus also to the tractor, or vice versa, the device is always steered in the direction of travel of the tractor. The tension links can be used as parallel, vertical frames be trained. In the steering linkage, as is known per se, adjustment means for changing the Install translation.

The drawings serve to explain the subject matter of the invention in more detail. There are two in these Embodiments of the new device shown.

F i g. 1 is a plan view of a mounting and steering device for a device with a support wheel;

F i g. Figure 2 shows the device in a side view;

809 588/108

Claims (3)

3 4 F i g. Fig. 3 is a plan view of a mounting pin 4 having a cranked shape. Symmetrically and steering device in a device with two support to the length of the tool bar 1 are on this in wheels; lateral distance two rigid support brackets 12 F i g. 4 is a perspective view of the same assemblies. At these the rear ends are two Device, whereby also individual, for Bodenbearbei- 5 traction arms 6 mounted laterally pivotable. These are Serving elements are indicated. with its front end pivotable at one end The basic element of the in Figs. 1 and 2 darbockock 5 mounted. Here, too, the tension links are provided as a soil cultivation device, the horizontally and vertically standing frame is designed,
Right tool support beam 1, on the Bodenbear- With the trestle on which the pins for processing tools 2 are arranged. A single io attachment to the three-point linkage of the traction support wheel 3 is located in the center of the beam 1 on a machine, a rearwardly directed pin 4 is pivotably mounted. Arm 13 firmly connected. This arm 13 and the above- For the connection between the tillage mentioned arms 11 are each shorter than the pulling device itself and the trestle 5, which by means of a handlebar 6, the tool bar 1 with the three-point linkage 15 connected to the tractor unit 5. sen is a pair of parallel pull links 6, the two connecting rods 10 connect the arms at the tractor end laterally pivotable with 11 with the arm 13. The connecting rods 10 Hedem Trestle 5 is connected. Each tension link 6 between the trestle 5 and the tool can as a vertical frame with two bars on top of each other 1. The connecting rods 10 can be arranged at Handlebars 7 be formed. 20 different points are attached along the arms 11 The rear ends 8 of the tension links 6 are in stores. This way you can get the aspect ratio Like 9 laterally pivotable on the tool support between the arm 13 and the length of the connecting beams, and in this way these rods 10 can be adjusted. direct ends 8 also connected to each other. In practice, the tool bar 1 can be used with Steering linkage for the support wheel consists of a 25 different machining tools 2 use, binding rod 10, which with its front end at the The arrangement of the mounting brackets allows Trestle 5 and with its rear end on a wall-free trailing of the support wheels 3 behind the Lever 11 is articulated on which the support wheel 3 tractor, without any lateral deviations bearing pin 4 is stuck. are feared. It should be noted, however, Every angular movement of the traction arm 6 causes the coupling, by means of which the device follows the traction movement of the pin 4 with respect to the attachment machine, to cause a certain amount of caster to result in block 5, and this causes the to rotate. For this reason, the smaller Ver support wheel 3 via the connecting rod 10 and the changes in the direction of travel of the tractor, lever 11 - 35 movement of the following processing device excessively with little delay does not affect the side at all,
movements of the tractor follows. Even with two training wheels, you can only do one This is particularly advantageous when steering while machining, while the other as a simple impeller of plants planted in rows when serves. You can also use parallel towbars instead these run in curved lines, as at 4 ° use those that are not planted parallel to one another is often the case on slopes. It is not an order. In general it is a converging additional operator required; the driver of the and diverging course of this traction arm not he tractor can do the work alone, she wishes. Under certain operating conditions can be performed at any time, even at night. but one or the other inclination is advantageous If the tractor be off the designated track 45. If the drawbars are not parallel, deviates only slightly and quickly into the original so that will cause a lateral thrust and a Returning to a straight road is also controlled turning, and this can be used the deviation of the geze to facilitate the breaking up of the ground in driving fairly fast Advice from the straight path is very little. the z. B. as vertical, in the direction of travel This automatic steering of the device is independent of tools designed for 50 guide plates, which is very effective by making snaking movements of the device is prevented, even in such cases if patent claims:
the support wheel encounters unevenness in the ground, via 1st device for attachment to a tractor which it rolls away, since the steering always works in the per and automatic steering of one with one or more sense that the device is farmed on a straight roadway 55 with several support wheels, borrowed soil cultivation device, characterized in that the second embodiment of the new device in a known device, which is shown in FIGS. 3 and 4, two tension links (6) with their front to a limited extent also allow an adjustability end with one on the attachment core of the desired degree of steering. 60 tractor located three-point linkage In the embodiment according to F i g. 3 and 4 articulated trestle (5) and with its back the tool bar 1 is designed in such a way that different ends are connected to the device (1) so that they can be pivoted laterally, scabbard-like soil cultivation tools 2 and that a steering linkage (10) is arranged on and against each other interchanged 11, 13) is provided, which can be on the one hand on the cultivation. Preferably at the ends of the block (5) engages and on the other hand is supported with the or beam 1 by support wheels 3, which are pivotably mounted by means of the steering of the device supporting pins 4. At each pin wheels (3) is in such a connection that when sits a forward extending arm 11. The lateral movement of the device relative to Headstock (5) and thus also to the tractor, or vice versa, the steering of the device is always in returns the tractor's direction of travel. 2. Apparatus according to claim 1, characterized in that the tension link (6) as parallel, vertically standing frames are formed. 3. Apparatus according to claim 1 or 2, characterized in that adjusting means for changing the translation are built into the steering linkage (10,11,13) in a manner known per se. Considered publications: German Patent Specifications No. 1 188 341, 915 631, 405; U.S. Patent No. 1,609,742,1057,143. 1 sheet of drawings 809 588/108 7.68 © Bundesdruckerei Berlin