Crop header with draper canvas and a seal with an element of...

A - Human Necessities – 01 – D

Patent

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A01D 47/00 (2006.01) A01D 34/02 (2006.01) A01D 41/12 (2006.01) A01D 45/00 (2006.01) A01D 61/02 (2006.01)

Patent

CA 2564777

A crop harvesting header with a cutter bar and a draper assembly has a draper canvas with a plurality of transverse slats with a resilient strip across a front edge of the outer surface in front of the front end of the slats to cooperate with a rearwardly projecting element of the cutter bar extending over the upper run of the draper canvas to engage the upper surface of said strip to form a seal to inhibit entry between the cutter bar and the draper canvas of materials carried by the cut crop. There is also provided a bead on the canvas on the surface opposite the strip within the width of the strip. The arrangement can be symmetrical with a strip at each of the front and rear edges spanned by the slats extending between them, with beads on each edge opposite the front and rear strips respectively.

Une tête de moissonneuse-batteuse avec une barre de coupe et un tablier comporte un convoyeur à toile doté d'une multitudes d'orifices transversaux avec une bande flexible en travers d'un bord avant de la surface extérieure, devant l'extrémité avant des orifices, afin de s'agencer avec un élément en saillie vers l'arrière de la barre de coupe qui dépasse dans la course supérieure du convoyeur à toile pour engager la surface supérieure de ladite bande afin de former un joint interdisant l'accès entre la barre de coupe et le convoyeur à toile des matériaux transportés par la barre de coupe. La toile comporte également un bourrelet, sur la surface opposée à la bande, dans la largeur de la bande. L'agencement peut être symétrique avec une bande à chacun des bords avant et arrière fractionnés par les orifices qui se prolongent entre eux; des bourrelets sont aménagés sur chaque bord, à l'opposé des bandes avant et arrière, respectivement.

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