Mowing device
AssigneeMultinorm B.V.
InventorsHermanus H. Vissers, Pieter A. Oosterling
Life of this patent
Estimating the term…
Abstract
A mowing device comprises behind its cutting members a swath former, consisting of a worm rotor conveying the cut crop transversely to the travelling direction of the mowing device, in order to surely convey the cut crop irrespective whether the volume of the cut crop is small or great, the worm rotor rotates in such a sense that its front moves upwardly.
Claims17
A mowing device comprising a frame extending transversely of the direction of movement of the mowing device, cutting members supported by said frame and being rotatably mounted on said frame so as to rotate about substantially vertical shafts by means of a driving gear carried by said frame, said cutting members having knives rotating in a horizontal plane and at least one swath former comprising a worm rotor adapted to rotate about a horizontal axis transverse of the direction of movement and being journalled on the frame and conveying the crop laterally towards at least one delivery place and driving means for driving said worm rotor, characterized in that the substantially horizontal axis of the worm rotor is located behind the substantially vertical axes of the cutting members and in that the driving means drive the worm rotor in a sense such, that the worm rotor moves upwards at the front side.
A mower/windrower comprising, in combination:
- a frame adapted to be traveled over a field;
- a generally horizontal drum rotatably carried by said frame about a generally horizontal axis lying transversely to the direction of travel of said frame, and a series of rotary cutting devices disposed in leading relation to said drum, each cutting device being rotatable about an upstanding axis and including at least one cutting knife element terminating in predetermined radial spacing from such axis whereby each cutting device covers a swath having a width twice that of such radial spacing as the frame is traveled, and said axes being disposed in serially spaced relation with respect to the lengthwise extent of said drum and having said axes spaced with respect to each other such that adjacent swaths overlap so as to encompass a cumulative cutting swath whose width is generally the same as the length of the drum;
- means for rotating said drum at high speed such that that portion of the drum nearest the cutting devices sweeps upwardly relative to the ground surface, and said drum having a shallow angle helix blade thereon terminating in an axially extending blade portion whereby cut crop may be transported axially by the drum, laterally with respect to the direction of travel, until it reaches the axially extending blade portion whereat such crop is flung rearwardly as a windrow;
- and
- means for rotating said cutting devices at a high enough speed as to urge a stream of cut crop rearwardly against said drum with such pressure that the crop is sufficiently engaged for lateral displacement thereby.
Dependencies are inferred from the claim text.