Harvesters – Motorized harvester – Having motor on ground-supported carrier
Patent
1990-11-07
1991-09-17
Bui, Thuy M.
Harvesters
Motorized harvester
Having motor on ground-supported carrier
56 137, A01D 3403
Patent
active
050482769
ABSTRACT:
The present disclosure is directed to a mower blade-weed cutting flail assembly wherein the mower blade and the flail cutting line (cord) always rotate in opposite directions with the cutting line always rotating faster than the mower blade so that the two never meet, viz., the mower blade cannot cut the line and the line cannot damage the blade. Attached to the upper interior portion of the mower deck adjacent one end portion thereof is the upper flange portion of the return spring and support whose bottom end supports the bottom portion of the main flail housing at a position near the flail main housing stub shaft extension arm. This secondary return spring and support supports the flail main housing (for the cord trimming unit), keeps the driven disc of the line cutter away from the mower disc drive unless and until the operating handle is engaged. When the operating handle to which a cable is attached is pushed, the cable pulls the line unit causing the driven disc to make contact with the mower blade drive disk located on the mower drive blade shaft, causing the driven disk to rotate, thereby operating the pulley which, through the pulley belt, in turn rotates the flail spool causing rapid rotation of the flail cutting line in the direction opposite to that of the mower cutting blade.
REFERENCES:
patent: 4170099 (1979-10-01), Owens
patent: 4453372 (1984-06-01), Remer
patent: 4642976 (1987-02-01), Owens
Bui Thuy M.
Burke Joseph Patrick
LandOfFree
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