Device for harvesting corn

Details Device for harvesting corn Device for harvesting corn

A - Human Necessities

01

D

A01D 45/02 (2006.01)

Patent

CA 2297479

The invention relates to an apparatus for harvesting maize or similar cereals, which can be configured especially as an attachment for combine harvesters (2) or field harvester and comprises two picking rollers (10, 11) mounted on either side of a picking slot (31) for separating the ears from the part of the plant carrying said ears. The picking rollers are driven to rotate about axes (34, 35) pointing in the direction of displacement (F) of the apparatus (1) and comprise several longitudinal ridges (29, 30), ribs or similar protuberances which form working edges (27, 28) projecting beyond the basic roller body (25, 26). The working edges (27, 28) of the picking rollers (10, 11) distributed around the circumference of the basic roller body (25, 26) extend across working surfaces which narrow conically towards the front end of the picking rollers (10, 11) and with each other or with the basic roller body (25, 26) of the neighbouring picking roller define a through-slot (36). To improve the picking action the axes of rotation (34, 35) of the picking rollers (10, 11) are arranged in such a way as to converge towards the front ends of the picking rollers (10, 11).

Appareil pour la récolte du maïs ou de céréales analogues, pouvant être réalisé en particulier comme adaptateur pour moissonneuse-batteuse (2) ou récolteuse-hacheuse, comprenant deux rouleaux de cueillage (10, 11) montés des deux côtés d'une fente de cueillage (31) pour séparer les épis de la partie de la plante qui les porte, entraînés en rotation autour d'axes (34, 35) dirigés dans le sens d'avancement (F) de l'appareil (1) et qui sont munis de plusieurs barres (29, 30), nervures ou saillies analogues longitudinales formant des bords de travail (27, 28) en saillie au-dessus de leurs corps de base (25, 26). Les bords de travail (27, 28) des rouleaux de cueillage (10, 11) répartis sur la périphérie de ces rouleaux parcourent des surfaces de travail s'amincissant coniquement vers l'extrémité avant des rouleaux (10, 11) et délimitant entre eux ou avec le corps de base (25, 26) des rouleaux adjacents, une fente de passage (36). En vue d'améliorer le travail de cueillage, les axes de rotation (34, 35) des rouleaux de cueillage (10, 11) sont orientés de façon convergente vers les extrémités avant desdits rouleaux (10, 11).

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