Back to results
US 5,964,300 AGranted
Wear shin for a tillage implement
AssigneeDeere & Company
InventorsJason Daniel Wattonville, Paul David Parker
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeDeere & Company
InventorsJason Daniel Wattonville, Paul David Parker
Estimating the term…
A wear shin for a shank of a tillage tool such as a ripper includes a profile having a narrow leading edge with forwardly concave sides extending rearwardly and outwardly from the leading edge to sides generally aligned with the sides of the shank. Upper and lower ears extend on opposite sides of the upper and lower portions of the shank, and fasteners extend through the ears and shank to releasably secure the shin to the leading edge of the shank. The shin has a narrow profile with width approximately equal to the width of the shank other than at the connecting ears. The narrow leading edge of the shin provides good soil shearing characteristics so the implement slices through the soil, while the forwardly concave sides provide an increasing rate of soil deflection in the rearward direction for better wear, better soil and trash deflection characteristics, and reduced draft requirements.
A wear shin for an upright shank of a tillage implement adapted for forward movement through soil, the shank having shank sides spaced a preselected distance apart and joined by a leading front edge, the wear shin comprising:
In a tillage implement having a frame adapted for movement in a forward direction over the ground, a shank assembly including a planar shank having shank sides facing in outward directions and spaced a preselected distance apart, the shank sides joined by an upright leading front edge and defining a shank profile, a wear shin having a leading shin edge and shin faces extending rearwardly and outwardly from the shin edge to outermost sides, the shin faces defining a shin cross section which is concave in the forward and outward directions, wherein the leading shin edge is offset forwardly from the upright leading front edge a second distance greater than the preselected distance to provide outward soil acceleration that increases gradually along the second distance from the leading shin edge towards the shank to move soil outwardly around the shank sides as the shank moves forwardly through the soil.
Dependencies are inferred from the claim text.