Agricultural device
AssigneeLely Patent N.V.
InventorAlfonsus Jacobus Van Den Engel
Life of this patent
Estimating the term…
Abstract
An agricultural device is couplable to a tractor vehicle with carrier arms. The agricultural device comprises a carrier frame with a set of wheels and a coupling device for coupling the agricultural implement to a tractor vehicle. The agricultural device further comprises a coupling frame having at least one coupling point for coupling of the coupling frame to both carrier arms of the tractor vehicle. The coupling frame is connected to the carrier frame so as to be rigid in rotation in the vertical plane, wherein at least one coupling point of the coupling frame is positioned on or above the center line of the carrier frame. Owing to the fact that the carrier arms extend horizontally or upwards, the carrier arms will not or will hardly get out of position as a result of the travelling of the vehicle.
Claims19
An agricultural device for coupling an agricultural implement to a tractor vehicle, wherein the tractor vehicle has carrier arms, wherein the only tensile force transmitting coupling between the tractor and the agricultural device is at the carrier arms , the agricultural device comprising:
- a carrier frame extending in the longitudinal direction over a centre line, the carrier frame having at a first end a set of wheels and a coupling device for coupling the agricultural implement, wherein the agricultural implement can be held by the coupling device in a working position and in a raised position;
- and
- a coupling frame connected to a second end of the carrier frame and hingeable about an upward axis of rotation, the coupling frame having at least one coupling point for coupling of the coupling frame to both carrier arms of the tractor vehicle;
- and wherein
- the coupling frame is connected to the carrier frame so as to be rigid in rotation in a vertical plane, wherein at least one coupling point of the coupling frame is positioned above a centre line of the carrier frame;
- and wherein the coupling point is vertically positioned in such a way that, after coupling of the agricultural device to the tractor vehicle, the carrier arms extend upwardly front the tractor vehicle.
An assembly made up of a tractor vehicle, wherein the tractor vehicle has carrier arms, and an agricultural device for coupling an agricultural implement to the tractor vehicle, wherein the only tensile force transmitting coupling between the tractor and the agricultural device is at the carrier arms, the agricultural device comprising:
- a carrier frame extending in the longitudinal direction over a centre line, the carrier frame having at a first end a set of wheels and a coupling device for coupling the agricultural implement, wherein the agricultural implement can be held by the coupling device in a working position and in a raised position;
- and
- a coupling frame connected to a second end of the carrier frame and hingeable about an upward axis of rotation, the coupling frame having at least one coupling point for coupling of the coupling frame to both carrier arms of the tractor vehicle;
- and wherein
- the coupling frame is connected to the carrier frame so as to be rigid in rotation in a vertical plane, wherein at least one coupling point of the coupling frame is positioned above a centre line of the carrier frame, and wherein the coupling point is vertically positioned in such a way that, after coupling of the agricultural device to the tractor vehicle, the carrier arms extend upwardly from the tractor vehicle.
Dependencies are inferred from the claim text.