Baler and an ejection arrangement for a baler

Patent metadata

Field	Value
Publication number	US-9439358-B2
Application number	US-201313786362-A
Country	US
Kind code	B2
Filing date	Mar 5, 2013
Priority date	Mar 6, 2012
Publication date	Sep 13, 2016
Grant date	Sep 13, 2016

Abstract

A rectangular baler comprising a bale chamber; a compacting plunger moveable between a retracted position and an extended position; an ejection arrangement provided in a wall comprising a shuttle assembly with at least one dog mounted for protruding from said wall when the shuttle assembly is moving from a rest position in the forward direction to move one or more bales forward; wherein at least one end dog is located in the rest position of the shuttle assembly in a zone near of the plunger in the extended position thereof, such that when the shuttle assembly moves in the forward direction, said at least one end dog is engageable behind a bale adjacent the inlet of the bale chamber.

First claim

The invention claimed is:

1. A rectangular baler comprising:
a bale chamber having an inlet and a discharge outlet and being delimited by a plurality of walls, said bale chamber being adapted to contain one or more bales;
a compacting plunger for advancing crop material in a forward direction towards the discharge outlet, said plunger being moveable between a retracted position and an extended position;
an ejection arrangement provided in a wall of said plurality of walls, said ejection arrangement comprising a shuttle assembly with a plurality of dogs; said shuttle assembly being mounted for reciprocating in the forward direction and back;
said plurality of dogs being mounted for protruding from said wall when the shuttle assembly is moving from a rest position in the forward direction to move said one or more bales towards the discharge outlet;
wherein said plurality of dogs comprise at least one end dog located in the rest position of the shuttle assembly in a zone near the plunger in the extended position thereof, such that when the shuttle assembly moves in the forward direction, said at least one end dog is configured to engage a vertical rear surface of a bale of said one or more bales, which is adjacent the inlet of the bale chamber.

2. A rectangular baler according to claim 1 , wherein, in the rest position of the shuttle assembly, said at least one end dog is located at least partially in an area surrounding the plunger, when the plunger is in the extended position.

3. A rectangular baler according to claim 2 , wherein said wall is a bottom wall, and wherein in the rest position of the shuttle assembly, said at least one end dog is located at least partially underneath the plunger, when the plunger is in the extended position.

4. A rectangular baler according to claim 1 , wherein said shuttle assembly comprises a plurality of first elongated members; and
wherein each first elongated member carries at least one end dog of said plurality of dogs and a number of first dogs arranged across the length of the first elongated member.

5. A rectangular baler according to claim 4 , wherein each first elongated member comprises a first bar and a second bar, the second bar extending over a part of the first bar, said first bar having an inner side and an outer side extending in a plane perpendicular to the wall and parallel to an advance direction, said second bar having an inner side and an outer side; said second bar being fixed with the inner side against the outer side of said first bar.

6. A rectangular baler according to claim 4 , further comprising a second shuttle assembly comprising a plurality of second elongated members extending over a part of the length of the bale chamber located near the discharge outlet; and wherein each second elongated member carries a number of second dogs arranged across the length of the second elongated member.

7. A rectangular baler according to claim 6 , wherein each second elongated member is located adjacent a first elongated member of said plurality of first elongated members.

8. A rectangular baler according to claim 5 , wherein each second elongated member is formed by a third bar arranged in line with said second bar, wherein said third bar has an inner side and an outer side, and wherein said third bar is mounted for moving with its inner side along the outer side of said first bar.

9. A rectangular baler according to claim 4 , wherein said at least one end dog comprises a plurality of pairs of end dogs, one mounted at opposite side of each elongated first member.

10. A rectangular baler according to claim 8 , wherein for each pair of end dogs, one thereof is mounted at the inner side of said first bar and one is mounted at the outer side of the second bar; wherein said number of first dogs is mounted at least one of the inner side and the outer side of said first bar;
wherein a number of second dogs is mounted at the outer side of the third bar.

11. A rectangular baler according to claim 1 , wherein each dog of said plurality of dogs is mounted pivotally around a pivot axis on the shuttle assembly and is provided at a lower part with a guiding element,
wherein there is provided in the wall of the bale chamber a guidance member adapted to cooperate with the guiding element to force the dog to pivot out of the wall when the shuttle assembly moves from the rest position in the forward direction.

12. A rectangular baler according to claim 11 , wherein the guidance member has a guide surface extending downward and forward in the forward direction.

13. A rectangular baler according to claim 12 , wherein said guidance member is a spring-biased guidance block, wherein the guiding element and guidance block are mounted and shaped such that, when the shuttle assembly moves back from an advanced position to the rest position, the guiding element pushes the guidance block away to return to an initial position against the guide surface.

14. A rectangular baler according to claim 11 wherein the guiding element is a protrusion protruding outward from a surface of the dog, away from the shuttle assembly.

15. A rectangular baler according to claim 11 , wherein the guidance member is mounted pivotally around a pivot axis parallel to the pivot axis of the dog, and is spring-biased against a stop located above the guidance member.

16. A rectangular baler according to claim 11 , wherein for each dog there is provided a stop adapted to limit the rotation of the dog upwardly around the pivot axis of the dog.

Assignees

• Cnh America Llc
• Cnh Ind America Llc

Inventors

• De Rycke Stefan
• Vanhoutte Peter
• Dumarey Robrecht M K

Classifications

• A01F15/0875 Primary

  Discharge devices · CPC title

• B30B9/3014

  Ejection means · CPC title