Harvesters – Fruit gatherer – Berry strippers
Patent
1980-02-11
1981-11-10
Hirsch, Paul J.
Harvesters
Fruit gatherer
Berry strippers
56328TS, A01D 4626, A01D 4628
Patent
active
042990815
ABSTRACT:
A harvester for shaking a grape vine to remove grapes therefrom. A harvesting vehicle includes a pivotally mounted picking head suspended over in straddling fashion a row of grape vines. A pair of swingably mounted and oppositely aligned contact members are reciprocated in unison back and forth against opposite sides of the grape vine. The contact members are driven by a pair of cranks in turn rotated via a belt and motor combination. A pair of counterweight shafts rotatably mounted within the head have off-centered counterweights with each shaft being rotated in unison with but in an opposite direction by its associated crankshaft in turn driving the crank arm and contact member. Horizontal force from the rotating counterweights are additive to forces from additional counterweights associated with the rotating crank arms to neutralize oppositely directed forces from the reciprocating contact members.
REFERENCES:
patent: 3187493 (1965-06-01), Harrett
patent: 3245211 (1966-04-01), Weygandt et al.
patent: 3548578 (1970-12-01), Shipley, Jr.
patent: 3636688 (1972-01-01), Fontan
patent: 3771768 (1973-11-01), Gebendinger
patent: 4172352 (1979-10-01), McCarthy et al.
patent: 4198801 (1980-04-01), Claxton
patent: 4207727 (1980-06-01), Poytress
Harris Robert H.
Humphrey Troy G.
Stimson, Jr. John J.
Hirsch Paul J.
Labeco Harvesters, Inc.
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