Implement and assembly for carrying out operations on an agricultural land
View Patent ↗An implement for soil preparation is moved in a direction of travel by a tractor with a three-point linkage. The implement includes an attaching mechanism, a coupling member with three coupling points, a first tool beam which is attached to the coupling member, at least one tool which is supported by the first tool beam, and three coupling elements which are each movably attached to the coupling member in the region of the respective coupling points to connect the coupling member to the attaching means. The first coupling element defines a path of movement for a guided movement of the first coupling point with respect to the attaching means. The second and the third coupling element each define a path of movement for a guided movement of their respective coupling point with respect to the attaching mechanism.
1. An implement for carrying out operations on an agricultural land, which implement is configured to be moved in a direction of travel by a tractor with a three-point linkage, the implement comprising:
attaching mechanism for attaching the implement to the three-point linkage of the tractor;
a coupling member, which is movably connected to the attaching mechanism and which comprises a first, a second and a third coupling point;
a first tool beam, which is attached to the coupling member and which extends from the coupling member substantially transversely to the direction of travel;
at least one tool, which is supported by the first tool beam and which is configured to carry out the operations on the agricultural land; and
a first, a second and a third coupling element, which are each movably attached to the coupling member in the region of the first, the second and the third coupling point, respectively, to connect the coupling member to the attaching mechanism;
wherein the first coupling element defines a path of movement for a guided movement of the first coupling point with respect to the attaching mechanism, wherein:
the second and the third coupling element each define a path of movement for a guided movement of the second and the third coupling point, respectively, with respect to the attaching mechanism, wherein the implement further comprises a support frame at its side that faces the tractor, at least a part of the attaching mechanism is provided on the support frame and at least a part of the coupling elements is connected to the attaching mechanism via the support frame and wherein the support frame comprises a first abutment member and the coupling member comprises a first support point which co-operates with the first abutment member, to transfer a force in the direction of travel of the implement.
2. The implement according to claim 1 , wherein the first abutment member is located on a coupling member part situated opposite to the first tool beam.
3. The implement according to claim 1 , wherein at least one of the first, the second and the third coupling element is a rod which is hingeably connected to the coupling element in the region of the respective coupling point.
4. The implement according to claim 1 , further comprising a second tool beam which supports at least one tool, is attached to the coupling member and extends from the coupling member in a direction substantially opposite to the direction of the first tool beam.
5. The implement according to claim 1 , wherein the support frame comprises a second abutment member and the coupling member comprises a second support point which co-operates with the second abutment member, to transfer a force in the direction of travel of the implement.
6. The implement according to claim 5 , wherein the first and the second abutment member are located in a plane transverse to the direction of travel on either side of the middle of the support frame.
7. The implement according to claim 1 , wherein the first coupling element is a first rod, the second coupling element is a second rod, and the third coupling element is a third rod, and wherein the first, the second and the third rod each extend from the coupling member to the support frame, are each hingeably connected to the coupling element in the region of the respective coupling point and are each hingeably connected to the support frame.
8. The implement according claim 1 , wherein the first and optionally the second tool beam are rotatably connected to the coupling member to pivot the tool beam in question upwards with respect to the coupling member.
9. The implement according to claim 8 , further comprising a first actuator, which is connected to the coupling member and the first tool beam, to pivot the first tool beam.
10. The implement according to claim 8 , further comprising a spring mechanism, which are connected to the coupling member and the first and optionally the second tool beam, to resiliently transfer at least a part of the weight of the tool beam in question to the coupling member.
11. The implement according to claim 1 , further comprising a stabilisator, one free end of which is hingeably connected to the coupling member and a second free end of which is hingeably connected to the support frame.
12. The implement according to claim 11 , wherein the stabilisator substantially extends between the first coupling element and the third coupling element.
13. The implement according to claim 11 , wherein the stabilisator is adjustable in length.
14. The implement according to claim 13 , wherein the stabilisator is a hydraulic cylinder which is adjustable in length.
15. The implement according to claim 14 , wherein the stabilisator is a double-acting hydraulic cylinder.
16. An assembly for carrying out operations on an agricultural land, comprising an implement according to claim 1 and a tractor with a three-point linkage, wherein the implement is attached to the three-point linkage of the tractor with the aid of the attaching mechanism.