MARKER Russian patent published in 2008 - IPC A01B69/02 

FIELD: agriculture.

SUBSTANCE: invention refers to the agricultural machinery that is the equipment for drawing marker grooves on the filed for driving wide-coverage agricultural equipment. The marker consists of the telescopic support boom with the trace making boom mounted on the frame; the tubular axle with the bearing assembly gudgeon installed on it. It also consists of the spherical disk for drawing a marker line, support bracket with the bracing wire installed pivotally on it. The support bracket is connected with the frame using delta hinge located on the end of the frame. The marker is also equipped with the power mechanism of the support boom with the actuating cylinder. The support boom has the form of square or rectangular box girder and is mounted using paired bearing assemblies with vertical and horizontal axles. It is possible to move the support boom along the frame and its incline towards axis. The support boom is installed inside the guideway. One end of the guideway is mounted in the support bracket of the frame using the delta hinge, and the other end is installed using a pair of jaws with possibility of movement and contact with the frame stop. The trace making boom is fixed perpendicularly on the support boom extension and its end is equipped with the counterbalance and fixed stop located on the support boom with possibility of movement and fixation. The bracing wire is made in the form of pivoted multiple rhomboid. The actuating cylinder and the driving rhomboid of the power mechanism of the support boom are mounted on the guideway using support brackets. The executive multiple rhomboids of the bracing wire are connected with the support bracket of the guideway and the trace making boom using conjoint support brackets of the double-arm levers.

EFFECT: decrease of the equipment size and labour input for turning the marker into working and transport positions.

3 cl, 3 dwg