Rotary harrows
OwnerAry van der Lely, Cornelis Johannes Gerardus Bominventors
Life of this patent
Estimating the term…
Abstract
A rotary harrow attachment has a frame portion to which coupling elements can be connected in alternative locations so that the attachment can be connected to the front or the rear of a prime mover on a multi-point hitch. The p.t.o. of the prime mover is drivenly connectable to the soil working members by a gear box which is also detachable and repositionable 180.degree. on the frame portion.
Claims10
A rotary harrow attachment comprising a frame and a plurality of rotary soil-working members mounted on a transverse frame portion of said frame, said transverse frame portion comprising driving means for said soil-working members to rotate said members on upwardly extending axes, a detachable coupling means on said frame for connection to a multipoint lifting hitch of a prime mover, said coupling means including an upwardly extending triangular configured coupling member and downwardly diverging struts connected to at least one generally vertical plate at the apex of said coupling member, the lower part of said coupling member and the lower ends of said struts each being connectable to the front or rear of said frame portion by plate means and bolts, spaced apart slotted plates being connected to said lower part, said coupling member being linked to a triangular coupling of a prime mover by a pivoted arm that interconnects said apex with the upper portion of said coupling and a shaft that extends through said slotted plates and an apertured member at the base of said coupling.
A rotary harrow attachment comprising a frame and a plurality of soil working members mounted on a transverse frame portion of said frame, said transverse frame portion comprising driving means for said soil working members to rotate said members on upwardly extending axes, a detachable coupling means on said frame for connection to a multipoint lifting hitch of a prime mover, said coupling means including an upwardly extending coupling member and downwardly diverging struts connected to at least one generally vertical plate at the apex of said coupling member, means connecting the lower part of said coupling member and the lower ends of said struts to the front or rear of said frame portion, spaced apart plates being connected to said lower part, said coupling member being linked to a triangular coupling of a prime mover by a pivoted arm that interconnects said apex with the upper portion of said coupling and by pivot means that extends between said plates and an aperture at the base of said coupling.
A rotary harrow attachment comprising a frame and a plurality of rotary soil working members mounted on a frame portion of said frame, said frame portion comprising driving means for said soil working members to rotate those members on upwardly extending axes, a detachable coupling means on said frame for connection to a multipoint lifting hitch of a prime mover, said coupling means including an upwardly extending coupling member and downwardly diverging struts connected to the upperside of said coupling member, means for connecting the lower part of said coupling member and the lower ends of said struts to the front or rear respectively of said frame portion, spaced apart plate means being connected to said lower part of the coupling member, said plate means extending upwardly and away from said frame portion, said coupling member linked to a coupling of a prime mover by a pivoted arm that interconnects said upper side of the coupling member with the upper portion of said coupling and by pivot means at the base of said coupling, a rotatable supporting member being pivoted to said frame portion at the rear thereof, relative to the direction of travel, said rotatable member being located below said plate means.
Dependencies are inferred from the claim text.