DE1273244B - Frontier plow, especially frontier reversible plow, for three-point attachment - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

AOIb

German KL: 45 a-3/48

Number:
File number:
Registration date:
Display day:

P 12 73 244.4-23 (P 40751)

November 7, 1966

July 18, 1968

The invention relates to a three-point mounted plow that can be converted for border plowing, in particular Reversible plow, in which the plow frame for border plowing is on the side opposite the three-point linkage is moved.

To move the plow frame to the side in the border plowing position, it is known between the rear one Connect a swivel arm to the coupling of the three-point linkage and the plow frame. These Plows have the advantage that the plow frame without conversion or without uncoupling and moving into the Border plow position can be brought. The disadvantage, however, is that with the swivel arm two latches to be brought into the operative position alternately are required, each of which is the swivel arm lock with the rear coupling of the three-point linkage. Furthermore, the plow frame is on these plows pivotally attached to the free end of the swivel arm. About the free movement of the plow frame to be lifted in relation to the swivel arm and thus also in relation to the rear coupling is a strut connection required between these parts.

So it is with these known plows with border plowing device required to release two locking points and after repositioning again with the corresponding Share to connect.

A three-point mounted plow suitable for border plowing is also known, with the one for lateral displacement of the plow frame an articulated parallelogram is provided with at least three links to their Locking device at least three locking devices must be actuated.

With the invention, the object is to be achieved while avoiding the aforementioned disadvantages a normal three-point mounted plow, in particular a reversible plow, using a single swivel arm to lock the plow frame in both working positions with a simple handle.

To solve this problem, the invention is based on a border plow, in particular a reversible plow for three-point attachment, in which the rear coupling for the three-point linkage has a vertical pivot pin in the central longitudinal plane of the plow and on both sides of the same each has a locking point and in the case of the vertical pivot pin a pivot arm is articulated, the free end of which is articulated to the plow frame and one Has locking point, which can optionally be coupled to a locking point of the rear coupling is. The invention consists in that a conventional, the plow frame or the axis of rotation for the plow

Border plow, in particular border reversible plow, for
Three-point attachment

Applicant:

Lemken K. G. plow factory, 4234 Alps

Named as inventor:

Theo van Laak, 4192 Altkaikar

Claimed priority:
49th DLG-Exhibition-International
Agricultural Show, Frankfurt 1966,
Frankfurt, opening day May 7, 1966

frame-supporting coupling has a laterally projecting carrier on which the free end of the swivel arm is pivotally mounted and each one locking point on both sides of its pivot pin has, one of which can be coupled to the associated locking points of the rear coupling is.

By means of the laterally protruding support, the pivot bearing for the swivel arm and two locking points has, it is possible to use the carrier, the swivel arm and the rear paddock at the same time to connect with a single bar. To switch to border plowing, all you have to do is required to release the latch and pivot the swivel arm, after which the latch is re-engaged in the assigned locking points. No parts protrude above the rearmost plow body so that the plow can plow to the border line. Existing three-point mounted plows can be retrofitted with the laterally protruding carrier to which the Swivel arm and the second rear coupling can be attached.

The subject of the invention is shown in the drawing in an exemplary embodiment, namely shows

F i g. 1 is a plan view of the attachment device with the swivel arm swung out for border plowing,
F i g. 2 the device in the position for normal plowing,

F i g. 3 the device in a perspective view in the border plowing position,

....... 809 570/124

F i g. 4 shows the device in perspective in the normal plowing position.

The rear coupling 1, on which the axis of rotation 2 for the plow frame, not shown, is fixedly mounted and which usually carries the rotating device for the plow frame designated by 3 and has the connection points for the three-point linkage, is provided according to the invention with a laterally projecting carrier 4 which is connected to its end carries a pivot bearing 5 with a perpendicular journal 6, on which two by a pivot bearing? connected lugs 8 and 9 are pivotably mounted. In the bearing 7, a second rear coupling 13, which has the usual three articulation points 10, 11 and 12 for the links 14, 15 and 16, is pivotably mounted in the horizontal plane. In the illustrated embodiment, the lower, transversely extending part of the rear coupling 13 is U-shaped and receives a horizontally pivotable cross rail 13 α in the U-shaped opening, on which the two lower links 15 and 16 engage. The cross rail 13 a is dimensioned so that it can also be used in the rear coupling 1.

The above-described joint arrangement on the carrier 4 allows the rear coupling 1 with the plow frame attached to it to be moved from the boundary plowing position according to FIGS. 1 and 3 into the normal plowing position according to FIGS. 2 and 4 without having to add or remove any parts. In order to be able to connect the plow device with the three-point linkage 14,15,16 firmly locked in the two working positions, locking points are provided, namely the locking point 17 on the carrier 4 at a distance α from the pin 6 and the locking point 18 at a distance b is on the rear coupling 13 at a distance «from the pivot bearing? the locking point 19 and the locking point 20 provided at a distance b. The distances α and b do not need to be the same. The pivot arm 8 carries at a distance b from the pivot pin 6 and at a distance a from the pivot bearing? a bolt 22 which can be moved up and down and is held in the locking position by a spring 21, which is thus in the position according to FIGS. 1 and 3, the tab 9, the locking point 18 and the locking point 19 connects to one another. In this position the plow is locked for border plowing.

In order to be able to bring the plow into the normal working position, all that is required is the To release latch 22 from the locked position. For this purpose, the bolt 22 is provided with a rotating arm 23, which by the force of the spring 21 on a rising guide track with the tab 8 associated guide bushing for the bolt 22 presses. When turning the bolt 22 is the same raised and the. Connection between parts 9, 18 and 19 released so that the plow together with the rear coupling 1 effortlessly with the device raised. into the position according to FIGS. 2 and 4 can be pivoted. The locking points 17 and 20 come into an aligned position,

ίο so that by means of the bolt 22, the tab 9 in the can be locked in a new working position.

As can be seen from the drawing, the carrier 4 is releasably connected to the rear coupling 1. If the plow for a long time be used as a normal working plow, the carrier 4 can be digested with it pivotally mounted parts and the rail 13 α are connected to the corresponding crosspiece of the rear coupling. 1

Claims (2)

Patent claims: 1. Border plow, in particular reversible plow, for three-point attachment, in which the rear paddock a vertical pivot pin for the three-point linkage in the central longitudinal plane of the plow and on both sides of the same each has a locking point and the one on the vertical Pivot a pivot arm is articulated, the free end of which is articulated with the plow frame is connected and has a locking point which can be optionally coupled to a locking point of the rear coupling, thereby characterized in that a usual, the plow frame or the axis of rotation for the Plow frame carrying coupling (1) has a laterally projecting beam (4) on which the free end of the swivel arm (8; 9) is pivotably mounted and on both sides of its pivot pin (5) each has a locking point (17; 18), one of which is associated with the associated Locking points (19 or 20) of the rear coupling (13) can be coupled. 2. border plow according to claim 1, characterized in that the two coupling (1; 13) Similar recording points for the pivotable, the articulation points for the lower links (15; 16) having cross rail (13 a). Considered publications:
German Patent Nos. 1104 243, 1034 904; German utility model No. 1777 565;
Austrian patents No. 222 404,
863 1 sheet of drawings 809 570/124 7.68 © Bundesdruckerei Berlin