Mounting of soil working tines
OwnerCornelis van der Lelyinventor
Life of this patent
Estimating the term…
Abstract
A tine mounting for a rotary harrow has an elongated support and a holder at each outer support end. Each holder has a configured vertical bore that tightly receives the fastening portion of a tine and a central bore that receives a rotary shaft. The mounting is preferably made of a single piece of forged or cast material with the forward side of each holder having an integral screen and a majority of the mass of the material. The support can have an inclined portion that projects from each side of the central bore. The vertical bores can taper upwardly and be multi-sided to conform to a tine fastening portion.
Claims15
A tine mounting for a rotary harrow comprising an elongated support having at least one tine holder adjacent an end thereof and a bore that receives a driving shaft, said tine holder having an internal, substantially vertical bore that receives a fastening portion of a tine, the longitudinal axis of said vertical bore extending substantially parallel to the longitudinal axis of said first mentioned bore, said tine holder having a forward side with respect to the normal direction of rotation of said mounting, said support and said tine holder being integrally formed from a single piece of metal by forging or casting, and including an integral thickened wall located at the forward side of the tine holder, said wall merging into an upwardly extending screen that projects above and forwardly from said holder, said wall also being thicker at its outer lateral side, in a region between the top and bottom of said holder, than it is adjacent said top and bottom.
A tine mounting for a rotary harrow comprising an elongated support having at least one tine holder adjacent an end thereof and a bore that receives a driving shaft, said tine holder having an internal, substantially vertical bore that receives a fastening portion of a tine, the longitudinal axis of said vertical bore extending substantially parallel to the longitudinal axis of said first mentioned bore, said tine holder having a forward side with respect to the normal direction of rotation of said mounting, said support and said tine holder being integrally formed from a single piece of metal by forging or casting, and comprising an integral wall located at the forward side of said holder with respect to the normal direction of rotation, said wall tapering upwardly and increasing in thickness from the bottom thereof and merging into an upwardly extending screen that projects above and forwardly from said holder, said screen at its forward side having a flattened surface.
A tine mounting for a rotary harrow comprising an elongated substantially horizontal support having at least one tine holder adjacent an end thereof and a bore that receives a driving shaft, said tine holder having an internal, substantially vertical bore that receives a fastening portion of a tine, the longitudinal axis of said vertical bore extending substantially parallel to the longitudinal axis of said first mentioned bore, said tine holder having a forward side with respect to the normal direction of rotation of said mounting, said support and said tine holder being integrally formed from a single piece of metal by forging or casting, and including an integral wall located at the forward side of the tine holder, said wall tapering upwardly and increasing in thickness from the bottom thereof, said wall merging into an upwardly extending screen that projects above and forwardly from said holder, said screen having an upper rim that extends substantially parallel to said support and slopes downwardly towards said first mentioned bore.
A tine mounting for a rotary harrow comprising an elongated support having a tine holder at each lateral end and a central bore that receives a driving shaft, each tine holder having an internal substantially vertical bore that receives a fastening portion of a tine, the longitudinal axes of said vertical bores extending substantially parallel to the longitudinal axis of said central bore, each tine holder having a forward side with respect to the normal direction of rotation of said mounting, said support and said tine holder being integrally formed from a single piece of metal by forging or casting, and including an integral wall located at the forward side of each tine holder, said wall tapering upwardly and increasing in thickness from the bottom thereof, said wall merging into an upwardly extending screen that projects above and forwardly from said holder, said wall also having a portion at its outer lateral side, in a region between the top and bottom of that holder, that is thicker than said top and bottom of the holder.
Dependencies are inferred from the claim text.