Harvesters – Motorized harvester – Including plural operating units and drive
Patent
1989-04-14
1990-09-11
Bui, Thuy M.
Harvesters
Motorized harvester
Including plural operating units and drive
56 6, A01D 3466
Patent
active
049551876
ABSTRACT:
A mowing machine that extends laterally from a tractor and is an assembly of carrier parts, supporting and spacer housings, normally held together by two tensile bars. In the principal embodiment, the first tensile bar is received through the carrier parts at about the same level as the mower's drive shaft where the front of the supporting housing curves to form its bottom. The second tensile bar is similarly situated at the rear of the supporting housing about three or four times farther, however, from the drive shaft. In another embodiment, the first tensile bar is seated in a continuous internal groove and the second tensile bar in a second continuous internal groove, both grooves conforming to the bars' curvature as seen in cross-section. External outwardly facing grooves in another embodiment are defined by supporting and spacer housings. In an embodiment having only one tensile bar, the groove extends from the bottom to the housings' center. For two tensile bars, grooves are formed midway in the housings' upper and lower aspects. For all external grooves, lugs retain tensile bars therein. In one embodiment there are separate forward spacer housings for the drive shaft and a rearmost spacer, a central tensile bar extends through the housings between the forward and rearmost spacers. Carrier parts are urged against each other by tightening a nut on the tensile bar bearing on an outboard crop guide. Stops welded to an inboard transmission gear prevent a nut welded to the tensile bar from turning.
REFERENCES:
patent: 4577456 (1986-03-01), van der Lely et al.
patent: 4679384 (1987-07-01), van der Lely et al.
patent: 4693062 (1987-09-01), van der Lely et al.
Albright Penrose Lucas
Bui Thuy M.
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