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US 8,752,643 B2Granted
Ripper assembly with direct load path
AssigneeDeere & Company
InventorsTravis Alan Shekleton, Leroy Ernest Kraske, Jefferson Scott Reynolds, David John Rix
Life of this patent
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Abstract
A work vehicle, such as a motor grader, comprises a frame, a ripper, a tie bar attached to the frame, and a four-bar linkage attached to and disposed between the ripper and the tie bar for transferring a load between the ripper and the frame via the four-bar linkage and the tie bar. The four-bar linkage and the tie bar are co-planar with respect to a plane within which the four-bar linkage is movable relative to the frame. A toolbar for the ripper is also disclosed.
Claims16
A work vehicle, comprising:
- a frame,
- a ripper assembly comprising a ripper having multiple teeth, a first tie bar attached to the frame, a first four-bar linkage attached to and disposed between the ripper and the first tie bar for transferring a first load between the ripper and the frame via the first four-bar linkage and the first tie bar, a second tie bar attached to the frame, and a second four-bar linkage attached to and disposed between the ripper and the second tie bar for transferring a second load between the ripper and the frame via the second four-bar linkage and the second tie bar, the first four-bar linkage and the first tie bar being co-planar with respect to a first plane within which the first four-bar linkage is movable relative to the frame, the second four-bar linkage and the second tie bar being coplanar with respect to a second plane within which the second four-bar linkage is movable relative to the frame, wherein the ripper assembly further comprises a tool bar supporting a number of teeth adapted to break up earth material upon movement of the ripper in a forward direction by the work vehicle, the tool bar comprising a V-shaped leading edge defined by an underside surface and an inclined surface sloping upwardly and rearwardly from the underside surface at an acute angle thereto.
A ripper assembly for use with a work vehicle, comprising:
- a ripper,
- a first tie bar adapted to be attached to a frame of the work vehicle,
- a second tie bar adapted to be attached to the frame of the vehicle,
- a first four bar linkage attached to and disposed between the ripper and the first tie bar for transferring a first load between the ripper and the frame via the first four bar linkage and the first tie bar,
- a second four-bar linkage attached to and disposed between the ripper and the second tie bar for transferring a load between the ripper and the frame via the second four-bar linkage and the second tie bar, wherein, in a plan view of the ripper assembly, the first and second four-bar linkages and the first and second tie bars are, respectively, in-line with one another, and
- a toolbar supporting a number of teeth adapted to break up earth material upon movement of the ripper in a forward direction by the work vehicle, the toolbar comprising a V-shaped leading edge defined by an underside surface and an inclined surface sloping upwardly and rearwardly from the underside surface at an acute angle thereto.
3 more elements
Dependencies are inferred from the claim text.