Soil cultivating machines
OwnerCornelis van der Lelyinventor
Life of this patent
Estimating the term…
Abstract
A soil cultivating machine or rotary harrow has a row of tined soil working members that are driven about upwardly extending shafts. Further soil working or cultivating members between the driven members are mounted for free rotation about axes also located in the same row which extends transverse to the direction of travel. The further members have tines or blades that are supported on respective arms that extend forwardly and are journalled on vertical shafts at the front of a frame portion. The arm of a pair of blades or a pair of freely rotatable tined members is pivotable to and fro between limit stops to avoid obstacles in or on the ground. The tined members are freely rotatable about upwardly extending axes and the bladed members are freely rotatable about horizontal axes to assist in shedding weeds and other debris.
Claims17
A soil cultivating machine comprising a frame and a plurality of driven soil working members with tine means mounted for rotation on corresponding upwardly extending shafts, driving means engaging said shafts to rotate said members about axes defined by said shafts, said shafts being positioned in a row that extends transverse to the direction of travel of the machine, a plurality of further soil working members being pivotably mounted on said machine and freely rotatable about respective axes in general alignment with said row, said further members each comprising at least one tine, the tines of adjacent further members being positioned to work overlapping strips of soil during rotational operation.
A soil cultivating machine comprising a frame and a plurality of driven soil working members with tine means mouted for rotation on corresponding upwardly extending shafts, driving means engaging said shafts to rotate said members about axes defined by said shafts, said shafts being positioned in a row that extends transverse to the direction of travel of the machine, further soil working members on said machine and said further members being freely rotatable about respective further shafts, said further shafts being positioned in general alignment with said row and pivotably mounted on the machine, each of said further members being displaceable as a unit, to and fro, during operation, at least two of said further cultivating members being positioned side-by-side between two neighboring driven members, each of said further members comprising at least one tine, said first mentioned members and further members being positioned adjacent one another to work overlapping strips of land during operation.
A soil cultivating machine comprising a frame and a plurality of driven soil working members with tine means mounted for rotation on corresponding upwardly extending shafts, driving means engaging said shafts to rotate said members about axes defined by said shafts, said shafts being positioned in a row that extends transverse to the direction of travel of the machine, further soil working members being pivotably mounted on said frame and said further members being freely rotatable about axes that are inclined with respect to the axes of rotation of said driven soil working members, said inclined axes being located in general alignment with said row and at least one of said further soil working members comprising at least one tine.
A soil cultivating machine comprising a frame and a plurality of driven soil working members with tine means mounted for rotation on corresponding upwardly extending shafts, driving means engaging said shafts to rotate said members about axes defined by said shafts, said shafts being positioned in a row that extends transverse to the direction of travel of the machine, a plurality of further soil working members being pivotably mounted on said machine and freely rotatable about respective axes that are inclined to the axes of rotation of said driven soil working members and said respective axes extending in general alignment with said row, said further members each comprising at least one soil working tool and being turnable about an upwardly extending pivot axis of a connection to the frame located forwardly of said row, with respect to the normal direction of machine travel.
Dependencies are inferred from the claim text.