Harvesters – Cutting – conveying and threshing – Reciprocating cutter
Reexamination Certificate
1999-07-30
2001-08-14
Will, Thomas B. (Department: 3671)
Harvesters
Cutting, conveying and threshing
Reciprocating cutter
C056S014300
Reexamination Certificate
active
06272822
ABSTRACT:
This invention relates to a front-mounted attachment for harvester-threshers for harvesting soybeans and peas, comprising a resiliently mounted additional cutting mechanism whose cutter drive can be derived from the drive of the cutting mechanism of the harvester-thresher.
To be able to use grain harvester-threshers also for harvesting soybeans and peas, there are special front-mounted attachments with own additional cutting mechanism are provided, which front-mounted attachments are attached at the cutting mechanism of the harvester-thresher and are connected with the drive of the cutting mechanism of the harvester-thresher. So far, however, the drive connection between the cutter drive of the additional cutting mechanism and the drive of the cutting mechanism of the harvester-thresher includes push rods and similar lever mechanisms, which is complicated and frequently leads to malfunctions.
It is therefore the object underlying the invention to create a front-mounted attachment as described above, whose cutter drive involves a functionally reliable operation of the additional cutting mechanism with a simple coupling to the drive of the cutting mechanism of the harvester-thresher.
This object is solved by the invention in that the cutter drive as an oil-bath transmission to be connected to the drive of the cutting mechanism of the harvester-thresher via a belt drive, which oil-bath transmission is mounted on a lateral runner pivotally mounted at the cutting mechanism of the harvester-thresher so as to be swivelled about a horizontal transverse axis by means of a swivel arm. The oil-bath transmission provides for a safe, largely maintenance-free cutter drive of the additional cutting mechanism, and by means of the belt drive it can easily be coupled to the drive of the cutting mechanism of the harvester-thresher, for instance to the oil-bath transmission provided for this drive of the cutting mechanism. The support by means of the runner ensures a support of the oil-bath transmission which can be moved together with the resilient additional cutting mechanism, so that there is obtained a perfect drive connection between the oil-bath transmission and the cutter bar or the like of the additional cutting mechanism.
REFERENCES:
patent: 2867962 (1959-01-01), Meyer
patent: 3662525 (1972-05-01), White
patent: 3780506 (1973-12-01), Tashiro
patent: 4091602 (1978-05-01), Williams et al.
patent: 4909025 (1990-03-01), Reissig et al.
patent: 35 12 619 (1986-10-01), None
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patent: 2 290 830 (1976-06-01), None
Collard & Roe PC
Kovacs Arpad F.
Will Thomas B.
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