Importance

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Abstract

The object of this Patent comprises the action of flexible nylon cords (3), spirally attached in parallel axis (2), rotating one opposed to the other, producing pounding impacts on the standing uncut plants in the field. Such impacts carry enough energy to release the seeds by shattering the pods in small fragments. Both seeds and pod fragments are processed by the components of the pneumatic system specially designed to accomplish the operations complementary to threshing such as: separation of grain and straw, collecting, transporting, and cleaning of grain. The separation of grains and straw is achieved by the state of suspension provided to the straw by the air flow from the fan (9) through the air outlets (13) of the upper air duct (21), whereas the seeds, due to their weight, fall externally on a sloped surface of the upper air duct (21) and, from there, slide by gravity towards the venturi-shaped receptacle (8) where they are conveyed into and throughout the duct (17) to the reservoir (8). The device is modular, considering that the parallel axis (2) will be projected to harvest one, two, three, four, five or six row of plants, according to the harvest design, and the size of the crop area. This characteristic and the fact it is coupled to tractors three-point hitch, make it suitable for small- and medium-sized crop areas.

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First Claim