Planting – Drilling – Frame and planting-element arrangement
Patent
1990-10-30
1992-01-21
Reese, Randolph A.
Planting
Drilling
Frame and planting-element arrangement
111926, A01C 506
Patent
active
050819429
ABSTRACT:
A depth gauging adjustment mechanism includes a spring-loaded handle which pivots about a common axis with the depth gauging wheel arm on an opener assembly. The handle has two transversely located pins, and the back of the opener assembly has notches on a radius struck on the axis for receiving the pins. The wheel arm and thus the planting depth are maintained by the handle. Each handle position represents a different planting depth which can be adjusted easily with one hand by pulling the handle against the bias, repositioning the pins and then releasing the handle. The wheel arm is freely rockable downwardly from the depth adjusted position to facilitate handle movement when the opener assembly is raised from the ground-working position.
REFERENCES:
patent: 1099337 (1914-06-01), Buchanan
patent: 3626877 (1971-12-01), Hansen et al.
patent: 4307674 (1981-12-01), Jennings et al.
patent: 4374500 (1983-02-01), Westerfield
patent: 4398478 (1983-08-01), Frase et al.
patent: 4413685 (1983-11-01), Gremelspacher et al.
patent: 4712492 (1987-12-01), Murray
pp. 23, 73, 76, 86 and 113 of the John Deere 7100 Mounted Max-Emerge Planters Operator's Manual OM-A33814 (May 1982).
pp. 65-9 and 65-10 of the John Deere 7200 Flex-Fold Drawn Planters Operator's Manual OM-H135741 (Dec. 1987).
Clark Richard H.
Long John D.
Deere & Company
Reese Randolph A.
Thompson Jeffrey L.
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