Earth working – Automatic power control – Land leveller type
Patent
1995-03-22
1997-02-11
Melius, Terry Lee
Earth working
Automatic power control
Land leveller type
172611, 280840, 280 612, 280755, 280758, 180 41, E02F 918
Patent
active
056011458
ABSTRACT:
A farm implement includes a plurality of equipment heads (such as planter heads) for engaging the earth and a carriage for mounting the heads for movement in a first direction. The equipment heads are kept level when moving in a first direction over terrain that is sloped and a second direction substantially perpendicular to the first direction so that the equipment heads remain in proper operative engagement with the earth. The leveling mechanism includes a channel shaped structure so that it is substantially stationary with respect to the carriage and extends substantially in a second direction, a movable ballast element mounted in the channel shaped structure, and a powered ballast moving device. The moving device has a first portion mounted to the ballast element, and a second portion mounted to the channel shaped structure with a force applicator (such as an hydraulic cylinder assembly) for moving the first portion with respect to the second portion in the second direction to reposition the ballast element with respect to the channel shaped structure. The channel shaped structure is preferably open ended, and rollers, ball bearings, low friction coatings, or lubricating fluids are provided between the ballast element and the channel shaped structure for relatively friction free movement. A control panel may be mounted in a tractor cab to operate the hydraulic cylinder assembly.
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"Drawn, Integral and Folding Planters", John Deere, Oct., 1983.
Melius Terry Lee
Novosad Christopher J.
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