Harvesters – Motorized harvester – Having driven means for handling or treating crop
Patent
1994-08-04
1995-05-30
Novosad, Stephen J.
Harvesters
Motorized harvester
Having driven means for handling or treating crop
A01D 8200, A01D 4310
Patent
active
054191068
DESCRIPTION:
BRIEF SUMMARY
The present invention concerns a fodder-processing roller designed to be incorporated into a device for processing fodder by folding it and comprising two at least approximately parallel rollers each rotating around its longitudinal axis, in order to cause the fodder to be processed to travel between them, the projections on one of the rollers engaging with the projections on the other roller.
Conventional practice calls for causing fodder plants to travel between two processing rollers in order to bend the stalks of said plants, so as to accelerate the elimination of water contained therein. To this end, said rollers incorporate ribs, generally helical-shaped, which engage with each other when the rollers rotate and which are designed to produce tears in the plant stalks through which the water can more rapidly evaporate, while the leaves of these fodder plants remain intact as they pass between these rollers.
One disadvantage of these conventional rollers lies in the fact that the stalks of the fodder plants to be processed may be project between the two rollers in directions approximating the direction of the helical formed by the ribs. Accordingly, these stalks undergo minimal bending and may even not be bent at all, passing untreated or virtually untreated through the rollers.
This problem becomes very appreciable when using mowing-processing machines incorporating discs (disc-mower conditioners), which discs feed the processing rollers in a relatively random fashion.
Attempts have previously been made to solve this problem.
One solution is described in the German application No. 20 55 244. The processing roller as shown in FIGS. 3 and 4 of this document comprises a cylindrical core and four groups of projections uniformly spaced along the periphery of the roller. Each projection has at least approximately the shape of a polyhedron whose section is at least approximately a quadrilateral, and, more precisely, a diamond whose sides are inclined in relation to the longitudinal axis of the roller. Each group of projections is arranged along a generating line along the cylindrical core. Within each group, the projections are spaced apart and the inclined sides of each projection extend within the extension of the inclined sides of the adjacent projections.
While this configuration improves processing to some degree, it should nevertheless be noted that the stalks which appear at the level of the spaces between the projections also remain unbent.
There is even a strong probability that the stalks that have penetrated into the spaces between the projections cannot be extricated therefrom, thereby unavoidably producing an unacceptable packing of the rollers.
Moreover, these conventional rollers cannot mesh under good conditions.
The purpose of the invention lies in solving this problem.
This purpose was achieved in a completely surprising way by using a fodder-processing roller comprising a core and groups of projections arranged along the roller, each projection having at least approximately the shape of a polyhedron whose sides are inclined in relation to the longitudinal axis of the roller, wherein each projection belonging to a group of projections is joined by one of its edges to a corresponding edge of an adjacent projection belonging to the same group of projections by means of a branching element having a reduced section, so that all of the projections and branching elements belonging to the same group of projections form a rib which is arranged continuously along the roller.
This roller is designed to equip a fodder-processing device operating by folding the fodder and comprising two rollers at least approximately parallel to each other, each of which rotates around its longitudinal axis so as to cause the fodder to be processed to travel between them, the projections of one of the rollers meshing with the projections of the other roller.
By virtue of this feature, each stalk is bent many times, whatever the direction in which the stalk penetrates between the two rollers. Moreover, any risk of packin
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Kuhn S.A.
Novosad Stephen J.
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