Earth working – With ground support vertically adjustable relative to frame – Translating motion
Patent
1975-02-03
1976-02-24
Spar, Robert J.
Earth working
With ground support vertically adjustable relative to frame
Translating motion
172275, E02F 372
Patent
active
039399974
ABSTRACT:
A tractor includes a downwardly and forwardly opening guide support channel extending across the front end for engagement with the transversely extending portion of a U-shaped frame of an implement which also includes upstanding standards having a boom pivotally connected thereto with a ground-working tool on the outer end. A support stand is connected to the forward end of the U-shaped frame and rearwardly extending feet are provided on the standard for engaging slots on oppositely disposed support brackets carried on the tractor. Hydraulic power cylinders extend between the U-shaped frame and the boom. Upon the tractor being driven forwardly into the U-shaped frame and the transversely extending member being positioned in the open end of the channel the power cylinders are operated to pivot the U-shaped frame toward the boom about an axis through the channel until the standards engage the oppositely disposed support brackets whereupon pivoting then occurs about an axis through the support brackets and the forward end of the implement is pivoted upwardly causing the transversely extending member to move upwardly and rearwardly in the channel thereby moving the implement rearwardly on the tractor without the tractor being moved forwardly and wedge-shaped feet on the standards move into complementarily shaped openings on the support brackets to limit vertical movement of the standards. A vertically disposed pin locks the feet to the brackets limiting horizontal movement of the implement relative to the tractor.
REFERENCES:
patent: 3043375 (1962-07-01), Astrom
patent: 3324954 (1967-06-01), Westendorf
patent: 3610450 (1971-10-01), Demkiw
"Triggs Farming Tools Catalogue" pp. 7-9, printed Nov. 1, 1967.
F & W Company Inc.
Spar Robert J.
Weaver Ross
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