CS218944B1 - Mowing device swiveling or bending device - Google Patents

Abstract

Device for tilting or bending the mower bar. Two pairs of support arms are attached to the frame, carrying the mower bar. On one side, the support arms are attached to the frame with ball joints, or cross joints, and on the other side with simple joints, for example cylindrical pins. The device is designed for perfect adaptation of the mower bar to the terrain profile.

Description

(54) Cutter bar bending or bending device

Device for mowing or bending the cutter bar. Two pairs of supporting arms carrying the mowing bar are attached to the frame. On the one hand, the support arms are attached to the frame by ball joints or cross joints, on the other hand by simple joints, for example cylindrical pins. The machine is designed to perfectly match the mower to the terrain profile.

BACKGROUND OF THE INVENTION The present invention relates to a device for swiveling and / or phyb mowing.

In order to achieve a low stubble, which is important when harvesting some crops or, in view of the largest possible harvest of straw, it is important to adapt the position or shape of the mower to the terrain profile. There are still plenty of land that is insufficiently flat, so when working on it, trying to get the stubble as low as possible results in frequent operational failures resulting from unwanted mowing of the mower to the ground, or it is necessary to mow with a high stubble. Even the most sophisticated design of the swiveling mowers is not able to guarantee a perfect adaptation to the terrain that the mowing unit processes. The known attachment of the mowing bar to the parallelograms allows only its up and down swing, but not at an angle and does not allow its spatial movement. It is also not applicable to flexible cutter bars that have recently appeared.

The device for swiveling and / or bending the cutter bar according to the invention removes these disadvantages. It is based on the fact that the mowing bar is attached on both sides by spatial joints to a pair of support arms, one pair of support arms being attached to the machine frame by ball joints and the other pair of supporting arms being attached to the machine frame by simple joints.

The mowing device according to the invention enables the mowing unit to be perfectly adapted to the shape or profile of the terrain being processed, both for the fixed and the flexible mowing unit. The device according to the invention is very simple and inexpensive to manufacture.

The attached drawing shows a schematic perspective view of an exemplary embodiment of the device according to the invention.

On the frame 1 of a harvesting machine (not shown) a pair of spherical joints 2 or equivalent cross joints is arranged on one side and a pair of simple joints 3, for example cylindrical pins, on the other side. Pairs of support arms 5, 5 * are attached to both the ball joints 2 and the simple joints 3. A stop 4 is then arranged next to one pair to limit the lateral movement of the support arms 5 connected to the ball joints 2. At the other end of the support arms 5, 5 ', a mowing bar 7, preferably provided underneath the gliders, 8, for example Strait. The fixing joints 6, 6 ‘are designed as spatial.

The device according to the invention works as follows: When the glider 8 is approaching an obstacle or moving on uneven terrain, on the one hand, a left, spatial swing of the support arms 5 with the mowing bar 7 is possible, on the other hand only a simple forward or backward swing. but not to the side. This makes it possible to use the fixed mowing unit to swing it upwards on one side, and the flexible mowing unit 7 perfectly adapts to the terrain profile, since on the one hand a firm grip of the mowing unit 7 in the lateral direction is always guaranteed. If the mowing bar 7 were mounted freely in all directions spatially, there would be no adaptation to the terrain profile, but uncontrollable fluctuations, which the device according to the invention prevents and on the contrary allows perfect mowing of the mowing bar 7 on one side in all directions in one direction, thereby avoiding the "mowing" of the mowing bar 7 into the ground.

Claims (1)

přededmEt Device for swiveling or bending of the mowing bar suspended on two pairs of parallelogram arms, characterized in that the mowing bar (7) is attached on both sides by spatial joints (6, 6 *) to a pair of ynAleza of the supporting arms (5, 5 ') ), wherein one pair of support arms (5) is attached to the machine frame (1) by ball joints (2) and the other pair of support arms (5'j is attached to the machine frame (1) by simple joints (3).