Round baler

Patent metadata

Field	Value
Publication number	US-9706717-B2
Application number	US-201615182077-A
Country	US
Kind code	B2
Filing date	Jun 14, 2016
Priority date	Jun 16, 2015
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

A round baler is provided with a bale-forming chamber and boundary apparatus of the bale-forming chamber that can be moved into an open position for ejecting a completed bale. The boundary apparatus includes a pivoting part rotatable between a first position, a second position and a third position. The axial dimensions of the bale-forming chamber can be changed by at least one side wall that can be moved by an adjustment drive. The adjustment drive is configured such that the axial dimensions of the bale-forming chamber increases when the pivoting part rotates to the second position and then reduces when the pivoting part rotates to the third position.

First claim

The invention claimed is:

1. A round baler comprising:
a bale-forming chamber, an adjustment drive, and a boundary apparatus of the bale-forming chamber that can be moved into an open position for ejecting a completed bale, the boundary apparatus comprises a pivoting part rotatable between a first position, a second position and a third position, the pivoting part located in the first position when the bale is forming, the pivoting part located in the second position when the bale begins its movement out of the bale-forming chamber, and the pivoting part located in the third position when the bale exits the bale-forming chamber,
wherein:
an axial dimension of the bale-forming chamber is configured to change by at least one side wall of the baler-forming chamber, which is moved by the adjustment drive, the adjustment drive is coupled with the boundary apparatus;
and the adjustment drive is configured to move the at least one side wall such that the axial dimension of the bale-forming chamber increases when the pivoting part rotates to the second position and then the axial dimension of the bale-forming chamber reduces when the pivoting part rotates to the third position to brake the bale as it exits the bale-forming chamber.

2. The round baler of claim 1 , wherein the pivoting part carries one or more rollers for forming a bale in the bale-forming chamber.

3. The round baler of claim 2 , wherein the pivoting part is connected at a distance from its rotational axis to a control element that interacts with a double-wedge-shaped control surface of the side wall.

4. The round baler of claim 3 , wherein multiple control elements and control surfaces are provided that are arranged at different distances from the rotational axis of the pivoting part, each control element respectively interacting with one of the control surfaces.

5. The round baler of claim 1 , wherein the first position is the pivoting part located in its lower end position.

6. The round baler of claim 1 , wherein the second position is the pivoting part located in its center position.

7. The round baler of claim 1 , wherein the third position is the pivoting part located in its upper position.

8. The round baler of claim 1 , wherein the first position of the pivoting part is a lowered position, the second position is a partially raised position, and the third position is a raised position.

9. A device for changing an axial dimension of a bale-forming chamber of a round baler for forming and ejecting a bale, comprising:
a side wall that is deflectable inward and outward along a pivoting axis;
at least one control surface, positioned on a circular arc concentric to the pivoting axis and mounted on an outer side of the side wall of the bale-forming chamber, the at least one control surface comprising a first portion, a second portion, and a third portion, the first portion and the third portion positioned axially outward of the second portion;
a pivoting part comprising at least one control element interacting with the control surface, the pivoting part rotating about the pivoting axis between a first position, a second position and a third position; and wherein
the pivoting part located in the first position with the at least one control element contacting the first portion of the at least one control surface when the bale is forming, the pivoting part located in the second position with the at least one control element contacting the second portion of the at least one control surface to increase the axial dimension of the bale-forming chamber when the bale begins its movement out of the bale-forming chamber, and the pivoting part located in the third position with the at least one control element contacting the third portion of the at least one control surface to reduce the axial dimension of the bale-forming chamber when the bale exits the bale-forming chamber to brake the bale as it exits the bale-forming chamber.

10. The device for changing an axial dimension of a bale-forming chamber of a round baler for forming and ejecting a bale of claim 9 , wherein the at least one control surface comprising a first control surface positioned on a first circular arc and a second control surface positioned on a second circular arc, the at least one control element comprising a first control element and second control element, the first control element interacts with the first control surface, and the second control element interacts with the second control surface.

11. The device for changing an axial dimension of a bale-forming chamber of a round baler for forming and ejecting a bale of claim 10 , wherein a distance between the second control element and the pivoting axis is longer than a distance between the first control element and the pivoting axis.

12. The device for changing an axial dimension of a bale-forming chamber of a round baler for forming and ejecting a bale of claim 10 , wherein a radius of the second circular arc is longer than a radius of the first circular arc.

13. The device for changing an axial dimension of a bale-forming chamber of a round baler for forming and ejecting a bale of claim 9 , wherein the at least one control element always contacts the at least one control surface.

14. The device for changing an axial dimension of a bale-forming chamber of a round baler for forming and ejecting a bale of claim 9 , wherein the first portion of the control surface and the third portion of the control surface are positioned equally outward.

15. The device for changing an axial dimension of a bale-forming chamber of a round baler for forming and ejecting a bale of claim 9 , wherein the pivoting part carries one or more rollers for forming the bale in the bale-forming chamber.

16. The device for changing an axial dimension of a bale-forming chamber of a round baler for forming and ejecting a bale of claim 9 , wherein the first position is the pivoting part located in its lower end position.

17. The device for changing an axial dimension of a bale-forming chamber of a round baler for forming and ejecting a bale of claim 9 , wherein the second position is the pivoting part located in its center position.

18. The device for changing an axial dimension of a bale-forming chamber of a round baler for forming and ejecting a bale of claim 9 , wherein the third position is the pivoting part located in its upper position.

19. The device for changing an axial dimension of a bale-forming chamber of a round baler for forming and ejecting a bale of claim 9 , wherein a degree between the pivoting part in the first position and the pivoting part in the third position is approximately 180°.

Assignees

• Deere & Co

Inventors

• Chapon Emmanuel
• Zabe Mickael
• Gresset Pascal

Classifications

• A01F15/08

  Details · CPC title

• A01F15/0883 Primary

  for round balers · CPC title

• A01F2015/077

  Pressing chamber formed by belts and rollers · CPC title

• A01F15/07

  Rotobalers, i.e. machines for forming cylindrical bales by winding and pressing · CPC title

• A01F15/085

  for round balers · CPC title