Coupling device for a power lift

Patent metadata

Field	Value
Publication number	US-11558992-B2
Application number	US-202016857926-A
Country	US
Kind code	B2
Filing date	Apr 24, 2020
Priority date	May 7, 2019
Publication date	Jan 24, 2023
Grant date	Jan 24, 2023

Abstract

A coupling device for attaching a power lift of a tractor to an attachment includes a link mounting region having coupling units for the articulation of an upper link and two lower links of the power lift, and an apparatus mounting region for fixing the attachment. A coupling unit assigned to the upper link is movable in a translatory manner in a vertical direction running perpendicular to a transverse direction. The coupling units are movably disposed on a device base of the coupling device, and the coupling units assigned to the two lower links are movable in a translatory manner in the transverse direction.

First claim

The invention claimed is:

1. A coupling device for attaching a power lift of a tractor to an attachment, comprising:
a link mounting region having coupling units for the articulation of an upper link and two lower links of the power lift;
an apparatus mounting region for fixing the attachment; and
a coupling unit assigned to the upper link is movable in a translatory manner in a vertical direction running perpendicular to a transverse direction;
wherein, the coupling units are movably disposed on a device base of the coupling device,
wherein, the coupling units assigned to the two lower links are movable in a translatory manner in the transverse direction.

2. The coupling device of claim 1 , wherein the use thereof for adjusting the position of a point of action selected from a point of traction as a geometric point of intersection of the imaginary extensions of both lower links or a pole point as a geometric point of intersection of the imaginary extensions of the upper link and a lower link.

3. The coupling device of claim 1 , wherein the coupling units assigned to the two lower links are movable relative to one another in order to alter a relative spacing running in the transverse direction.

4. The coupling device of claim 1 , wherein the coupling units assigned to the lower links are movable independently of one another.

5. The coupling device of claim 1 , wherein the coupling unit assigned to the upper link and the coupling units assigned to the lower links are movable independently of one another.

6. The coupling device of claim 1 , further comprising a coupling unit connected to a drive unit which is activated for a translatory movement of the coupling unit.

7. The coupling device of claim 6 , wherein the coupling units assigned to the two lower links are connected to the same drive unit.

8. A control arrangement, comprising:
a power lift of a tractor; and
a coupling device for controlling the movement of the power lift, the coupling device comprising:
a link mounting region having coupling units for the articulation of an upper link and two lower links of the power lift;
an apparatus mounting region for fixing the attachment; and
a coupling unit assigned to the upper link is movable in a translatory manner in a vertical direction running perpendicular to a transverse direction;
wherein, the coupling units are movably disposed on a device base of the coupling device,
wherein, the coupling units assigned to the two lower links are movable in a translatory manner in the transverse direction.

9. The control arrangement of claim 8 , further comprising a control unit operably generating adjustment signals for setting a target spacing between an upper link and a lower link of the power lift, or a target spacing between two lower links of the power lift.

10. The control arrangement of claim 9 , further comprising at least one drive unit of the coupling device activated by the adjustment signals for controlling the movement of the power lift.

11. The control arrangement of claim 9 , wherein the control unit generates adjustment signals as a function of a target predetermined value.

12. The control arrangement of claim 9 , wherein the control unit receives sensor signals from a sensor unit and generates adjustment signals as a function of received sensor signals.

13. The control arrangement of claim 12 , wherein the sensor unit is arranged at least partially on the coupling device.

14. The control arrangement of claim 8 , wherein the coupling units assigned to the two lower links are movable relative to one another in order to alter a relative spacing running in the transverse direction.

15. The control arrangement of claim 8 , wherein the coupling units assigned to the lower links are movable independently of one another.

16. The control arrangement of claim 8 , wherein the coupling unit assigned to the upper link and the coupling units assigned to the lower links are movable independently of one another.

17. The control arrangement of claim 8 , wherein the coupling unit is connected to a drive unit which is activated for a translatory movement of the coupling unit.

18. The control arrangement of claim 17 , wherein the coupling units assigned to the two lower links are connected to the same drive unit.

19. A coupling device for attaching a power lift of a tractor to an attachment, comprising:
a link mounting region having coupling units for the articulation of an upper link and two lower links of the power lift;
an apparatus mounting region for fixing the attachment;
a coupling unit assigned to the upper link is movable in a translatory manner in a vertical direction running perpendicular to a transverse direction; and
a drive unit operably activated for inducing translatory movement of the coupling unit;
wherein, the coupling units are movably disposed on a device base of the coupling device,
wherein, the coupling units assigned to the two lower links are movable in a translatory manner in the transverse direction.

20. The coupling device of claim 19 , wherein the coupling units assigned to the two lower links are connected to the same drive unit.

Assignees

• Deere & Co

Inventors

• Letscher Jens
• Reinmuth Florian

Classifications

• A01B71/02 Primary

  Setting or adjusting mechanisms · CPC title

• A01B69/001

  Steering by means of optical assistance, e.g. television cameras (steering devices for road marking vehicles E01C23/163) · CPC title

• B60D1/36

  for facilitating connection, e.g. hitch catchers · CPC title

• A01B63/111

  regulating working depth of implements · CPC title

• A01B63/023

  Lateral adjustment of their tools · CPC title