Tandem folding implement
AssigneeHesston Corporation
InventorRaymond A. Adee
Life of this patent
Estimating the term…
Abstract
Tandemly disposed tool beams project laterally outwardly from opposite sides of the central tongue of the implement and may be swung horizontally between laterally widespread, working positions and folded back, compacted, transport positions. Collapsing linkages between the tongue and the front beams control swinging of the latter, while stiff links between the front and rear beams serve to maintain a selected angular relationship between the front and rear beams in the working and transport positions. Outer sections of the front linkages are extensible for adjusting the draft angle of the front beams, while the stiff links are likewise extensible for adjustment of the angle between the front and rear beams.
Claims15
A tandem folding implement comprising:
- a central, fore-and-aft extending tongue;
- a first pair of tool-supporting beams projecting laterally from opposite sides of the tongue;
- a second pair of tool-supporting beams behind said first pair and projectng laterally from opposite sides of the tongue.
- said tongue and said beams being supported for over-the-ground travel in the direction of the longitudinal axis of the tongue;
- means mounting said beams for horizontal swinging movement between laterally widespread working positions and laterally compact, transport positions,
- each of said beams having its own upright axis about which said swinging movement of the beam occurs with each said upright axis being spaced apart horizontally from each other said upright axis;
- and
- control means coupled with said beams for maintaining the latter in preselected angular relationships with respect to one another and said tongue in said working and transport positions, respectively,
- said control means being coupled with said beams in such a manner that the two beams on each side of the tongue are constrained to move in the same direction during said swinging movement thereof about their axes.
Dependencies are inferred from the claim text.