Soil cultivating implements
OwnerCornelis van der Lelyinventor
Life of this patent
Estimating the term…
Abstract
A cultivating implement has a row of tined members that have resilient arms and a resilient tines with coil supports that can deflect to mitigate stone damage. The members are mounted on a frame portion that is turntable about an axis extending transverse to the direction of travel, against resilient opposition. Each member includes a hub with bearings protected by an opposing flange and plate structure. Drive to the members is transmitted by shafts housed in the hollow frame portion and the shafts are supported in bearings connected to support members connected to the walls of the frame portion.
Claims18
A soil cultivating implement comprising a frame and a row of soil working members rotatably mounted on said frame, said members being rotatable about upwardly extending axes defined by respective shafts and driving means connected to rotate said members, each member including support means on a respective shaft and tines depending downwardly from said support means, each tine having a lower soil working portion and an upper fastening portion, said soil working portion being interconnected to said support means through a resilient coil and said coil being located in advance of said fastening portion relative to the normal direction of rotation of the corresponding soil working member, a plane perpendicular to the longitudinal axis of said coil being substantially tangential with an imaginary circular cylinder, the longitudinal axis of which coincides with the axis of rotation of said soil working member, said fastening portion being substantially straight and extending substantially tangential to an imaginary circle centered on the axis of rotation of said soil working member.
A soil cultivating implement comprising a frame and a row of soil working members rotatably mounted on said frame, said members being rotatable about upwardly extending axes defined by respective shafts and driving means connected to rotate said members, each member including support means on a respective shaft and tines depending downwardly from said support means, each tine having a lower soil working portion and an upper fastening portion, said soil working portion being interconnected to said support means through a resilient coil and said coil being located in advance of said fastening portion relative to the normal direction of rotation of the corresponding soil working member, a plane perpendicular to the longitudinal axis of said coil being substantially tangential with an imaginary circular cylinder, that has a longitudinal axis coinciding with the axis of rotation of said soil working member, the lower end of said soil working portion being located adjacent said corresponding coil and generally parallel to that coil, at least part of said lower end being spaced from the axis of rotation of said soil working member further than said coil, said fastening portion being substantially straight and extending substantially tangential to an imaginary circle centered on the axis of rotation of said soil working member.
A soil cultivating implement comprising a frame and a row of soil working members rotatably mounted on said frame, said members being rotatable about upwardly extending axes defined by respective shafts and driving means connected to rotate said members, each of said members comprising resilient arms extending outwardly from a central hub and a resilient tine having a fastening portion interconnected to a respective arm, said tine including a downwardly extending soil working portion that is integral with said fastening portion through a helical coil, said coil having a longitudinal axis that extends at an angle to said fastening portion, said arm terminating adjacent said fastening portion and being secured to abut that portion by clamping means.
Dependencies are inferred from the claim text.