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US 4,060,134 AGranted
Soil cultivating implements
OwnerCornelis van der Lelyinventor
Life of this patent
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OwnerCornelis van der Lelyinventor
Estimating the term…
A soil cultivating implement with a row of soil working members extending transverse to the direction of travel is constructed to work a broad path of soil but with less than normal power input. Each soil working member has a support with a tine holder at each side of its axis of rotation. Rigid tines extend downwardly from the holders to work the subsoil and further tines are mounted on each holder to work only the top soil, above the rigid tines. The rigid tines are positioned closer to the axis of rotation than are the further tines and only the latter of adjacent soil working members work overlapping paths. The further tines can be of resilient, circular construction and connected to a holder by respective integral spring coils that are interconnected by a tie portion. The further tines and their coils are located at the upper and lower ends of the holder and secured to the holder by the same fastening that secures the rigid tine in that holder. The fastening can be a clamping plate and protective screen.
A soil cultivating implement comprising a frame and a plurality of adjacent soil working members rotatably supported on said frame, said members being rotatable about corresponding upwardly extending axes and driving means engaging said members to rotate same and work soil, each of said members comprising a support and at least one downwardly extending substantially rigid tine fastened to said support, said tine having an upper fastening portion and a lower soil working portion, said fastening portion being held in a holder adjacent an outer end of said support, further soil working tine means deflectively mounted on said soil working member and rotatable therewith, said further tine means being fastened to said holder by at least one spring coil that surrounds said holder, the tine means of adjacent soil working members cooperating to work overlapping paths of soil during operation, and said tine means being deflectable against the resilient opposition of said coil and turnable about an axis that is substantially parallel to the axis of rotation of the corresponding soil working member.
A soil cultivating implement comprising a frame and a plurality of adjacent soil working members rotatably supported on said frame, said members being rotatable about corresponding upwardly extending axes and driving means engaging said members to rotate same and work soil, each of said members comprising a support and at least one downwardly extending, substantially rigid tine fastened to said support, said tine having an upper fastening portion and a lower soil working portion, said fastening portion being held in an elongated holder adjacent an outer end of said support, further soil working tine means deflectively mounted on said soil working member and rotatable therewith, the further tines being fastened to said holder by spring coil means that surrounds said holder and comprising an upper tine positioned adjacent the upper side of the holder and a lower tine located adjacent the lower side of the holder, the further tines of adjacent soil working members cooperating to work overlapping paths of soil during operation, said further tines being deflectable against the resilient opposition of said coil means and turnable about an axis that substantially coincides with the longitudinal axis of said holder.
A soil cultivating implement comprising a frame and a plurality of adjacent soil working members rotatably supported on said frame, said members being rotatable about corresponding upwardly extending axes and driving means engaging said members to rotate same and work soil, each of said members comprising a support and at least one downwardly extending, substantially rigid tine fastened to said support, said tine having an elongated upper fastening portion and a lower soil working portion, said fastening portion being held in a holder adjacent an outer end of said support, further soil working tine means deflectively mounted on said soil working member and rotatable therewith, said further tine means comprising an upper tine and a lower tine which are each fastened to said holder by at least one corresponding spring coil that surrounds the holder, the further tine means of adjacent soil working members being positioned to cooperate and work overlapping paths of soil during operation, the coil of said upper tine being located adjacent the upper side of the holder and the coil of said lower tine being located adjacent the lower side of the holder, each further tine being deflectable against resilient opposition of its coil about an axis that substantially coincides with the longitudinal axis of said fastening portion of the rigid tine.
A soil cultivating implement comprising a frame and a plurality of adjacent soil working members rotatably supported on said frame, said members being rotatable about corresponding upwardly extending axes and driving means engaging said members to rotate same and work soil, said members each comprising a substantially horizontal support and at least one downwardly extending substantially rigid tine fastened in a holder at an outer end of said support, said tine comprising an elongated upper fastening portion secured in said holder by fastening means and a lower soil working portion, further tine means connected to said support and including two deflectable tines that extend outwardly from said holder with respect to the axis of rotation of the corresponding soil working member, said two tines being turnable about an axis that is substantially coincident with the longitudinal axis of said fastening portion and being connected to said holder by at least one spring coil that surrounds that holder, an upper one of said two tines being located near the upper side of said holder and a lower one of said two tines being located near the lower side of said holder, said fastening portion being inclined with respect to the soil working portion of said rigid tine, and the soil working portion extending in trailing position relative to the normal direction of rotation of the corresponding soil working member, said fastening means including a plate that clamps the upper further tine to the holder.
Dependencies are inferred from the claim text.