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US 4,700,535 AGranted
Drum-type windrowing machine
AssigneeKlockner-Humboldt-Deutz AG Szeigniederlassung Fahr
InventorUlrich Wessel
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AssigneeKlockner-Humboldt-Deutz AG Szeigniederlassung Fahr
InventorUlrich Wessel
Estimating the term…
A windrower has a transverse support positioned at an angle to the travel direction of the apparatus and attached by a towing bar to a tractor and the like. The transverse support is provided with a plurality of crop-transfer drums, which are attached rotatably under the transverse support parallel to each other, and displaced from each other. At least one crop-transfer drum is swingable about its adjacent crop-transfer drum 180.degree. with respect to the axis of the adjacent crop-transfer drum in such a way that its axis retains its angle to the ground. Thus the crop-transfer drums have at least two configurations, in one of which all the crop-transfer drums are side-by-side with an equal spacing between adjacent drums of a width which is much smaller than the width of a crop-transfer drum, and in another in which there is at least one comparatively large gap between two adjacent crop-transfer drums substantially equal in width to the diameter of the crop-transfer drum.
In a windrower for forming mown crop material into a swath and adapted to be drawn by a tractor, comprising a transverse support attached to said tractor by a towing bar orientable at an acute angle to a travel direction of said windrower, a plurality of crop-transfer drums attached under said transverse support parallel to each other so as to each be rotatable, said rotary crop-transfer drums being offset from each other in said travel direction of said windrower, the work zones of said rotary crop-transfer drums overlapping, the improvement which comprises means for swinging at least one of said crop-transfer drums through substantially 180.degree. around an upright axis of a neighboring crop-transfer drum with the angle of an axis of the swingable crop-transfer drum with respect to the ground maintained unchanged.
Dependencies are inferred from the claim text.