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US 4,124,078 AGranted
Agricultural implements
AssigneeC. van der Lely N.V.
InventorsCornelis van der Lely, Ary VAN DER Lely, Cornelis J. G. Bom
Life of this patent
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AssigneeC. van der Lely N.V.
InventorsCornelis van der Lely, Ary VAN DER Lely, Cornelis J. G. Bom
Estimating the term…
A rotary harrow or cultivator has a frame including an elongated frame portion that supports a row of soil working members. Each soil working member has a substantially vertical shaft supported on the frame portion by upper and lower bearing connections. The shafts each have a pinion gear in mesh with neighboring pinion gears and these gears are housed within the frame portion between the upper and lower bearing connections. If the upper bearing fractures, the fragments thereof are retained by a protective member which can be a separate plastic annular member having a chamber that surrounds each shaft, or the bearing connection can be formed by two separable portions that are bolted together and secured in a top cover of the frame portion. In either case, the bearing fragments are retained and cannot become lodged between the meshed gears. The frame portion can be linked to the remainder of the frame by parallelogram links that interconnect rigid supports on the forward frame portion to horizontal beams of the frame. A supporting roller at the rear of the frame portion is connected to the beams by arms that can be set to support the frame at chosen vertical heights above the ground. The frame portion with soil working members can "float" through the linkage connections to accommodate ground irregularities. The rear of the frame portion is supported on the frame by compression spring-bracket connections to a rear horizontal beam of the frame.
An agricultural implement comprising a frame and a plurality of soil-working members journalled in a portion of said frame, said soil-working members being rotatably mounted on corresponding upwardly extending shafts and said shafts being supported by said frame portion through at least one respective bearing connection, driving means engaging said soil-working members and said driving means comprising intermeshed gears within said frame portion and below the bearing connections that support said shafts, protective means located between said bearing connections and the gears of said driving means and said protective means being positioned to intercept broken bearing fragments from fouling said gears, said protective means comprising a chamber positioned beneath each bearing connection and said chamber substantially surrounding the respective shaft and gear, said chamber being connected to the hub of said gear with release means.
An agricultural implement comprising a frame and a plurality of soil-working members journalled in a portion of said frame, said soil-working members being rotatably mounted on corresponding upwardly extending shafts and each shaft being supported by said frame portion through at least one bearing connection, driving means engaging said soil-working members and said driving means comprising intermeshed gears within said frame portion and below the bearing connections that support the shafts, protective members being located between said bearing connections and the gears of said driving means and said protective members being positioned to intercept broken bearing fragments and prevent same from fouling said gears, each bearing connection including a bearing in a housing and said housing being secured in said frame portion, each protective member extending around the respective shaft adjacent said frame portion, said protective member overlying a respective gear and defining a chamber, said member retaining fragments above said gear, said protective member being substantially cylindrical in configuration and surrounding said shaft in spaced relationship, said member being fastened to a corresponding gear.
An agricultural implement comprising a frame and a plurality of soil-working members journalled in a portion of said frame, said soil-working members being rotatably mounted on corresponding upwardly extending shafts and each shaft being supported by said frame portion through at least one bearing connection, driving means engaging said soil-working members and said driving means comprising intermeshed gears within said frame portion and below the bearing connections that support the shafts, protective members being located between said bearing connections and the gears of said driving means and said protective members being positioned to intercept broken bearing fragments and prevent same from fouling said gears, each bearing connection including a bearing in a housing and said housing being secured in said frame portion, each protective member extending around the respective shaft adjacent said frame portion, said protective member overlying a respective gear and defining a chamber, said member retaining fragments above said gear, said protective member being secured to said gear and extending upwardly from the gear to adjacent the bottom of said housing.
Dependencies are inferred from the claim text.