Packer wheel for a double shoot coulter assembly

• US 8,904,945 B2
• Filed: 11/15/2011
• Issued: 12/09/2014
• Est. Priority Date: 11/15/2011
• Status: Active Grant

• Current Assignee: CNH Industrial Canada, Ltd (CNH Industrial N.V.)
• Original Assignee: CNH Industrial Canada, Ltd (CNH Industrial N.V.)
• Inventors: Naylor, Matthew Stuart, Schilling, Robin Bruno
• Primary Examiner(s): Novosad, Christopher J
• Application Number:
  US13/297,055
• Publication Number:
  US 20130118392A1
• Time in Patent Office: 1,120 Days
• Field of Search: 111/187, 111/188, 111/129, 111/186, 172558-566, 172/606, 172/610
• US Class Current: 111/186
• CPC Class Codes: A01B 15/16 Discs bearings therefor A01B71/04; Scrapers for cleaning discs; Sharpening attachments sharpening in general B24
• CPC Class Codes: A01B 23/06 Discs A01B15/16 takes precedence; bearings therefor A01B71/04; Scrapers for cleaning discs; Sharpening attachments; Lubrication of bearingssharpening in general B24
• CPC Class Codes: A01B 49/06 for sowing or fertilising
• CPC Class Codes: A01C 5/064 with rotating tools
• CPC Class Codes: A01C 5/068 Furrow packing devices, e.g. press wheels
• CPC Class Codes: A01C 7/06 Seeders combined with fertilising apparatus
• CPC Class Codes: A01C 7/201 Mounting of the seeding tools
• CPC Class Codes: A01C 7/203 comprising depth regulation means
• CPC Class Codes: A01C 7/206 Seed pipes

Abstract

A double shoot coulter assembly for an agricultural implement includes a packer wheel. The packer wheel is disposed behind a soil engaging blade. The packer wheel is configured to press soil displaced by the soil engaging blade into trenches formed by the soil engaging blade and a disc blade. A centerline of the packer wheel extends adjacent to a soil displacing side of the soil engaging blade.

Claims

1. A double shoot coulter assembly for an agricultural implement comprising:

a support structure;

a disc blade rotatably mounted to the support structure, and configured to form a trench in a soil surface;

a soil engaging blade mounted to the support structure, the soil engaging blade comprising a first side adjacent to the disc blade, and a second side, opposite the first side, configured to remove soil from a side of the trench; and

a packer wheel disposed behind the soil engaging blade, and configured to contact soil and press the soil into the trench, wherein the packer wheel comprises an annular cavity extending about an outer circumference of the packer wheel, the annular cavity configured to direct soil into the trench.

2. The double shoot coulter assembly of claim 1, wherein a first intersection of a longitudinal axis of the soil engaging blade and a rotational axis of the packer wheel forms a first acute angle, and a second intersection of the longitudinal axis of the soil engaging blade and a centerline of the packer wheel forms a second acute angle.

3. The double shoot coulter assembly of claim 1, wherein the packer wheel is positioned directly behind the soil engaging blade.

4. The double shoot coulter assembly of claim 1, wherein the packer wheel is toed outwardly relative to the disc blade and the soil engaging blade.

5. The double shoot coulter assembly of claim 1, wherein a rotational axis of the packer wheel is oriented at an angle between 5 and 15 degrees relative to the soil surface.

6. The double shoot coulter assembly of claim 1, wherein the disc blade is oriented at a first angle relative to the soil surface and the packer wheel is oriented at a second angle of between approximately 95 and 105 degrees relative to the soil surface, the second angle being greater than the first angle.

7. A double shoot coulter assembly for an agricultural implement comprising:

a support structure;

a disc blade rotatably mounted to the support structure at a first angle relative to a soil surface and configured to form a trench in the soil surface;

a soil engaging blade mounted to the support structure and configured to remove soil from a side of the trench; and

a packer wheel disposed behind the soil engaging blade and configured to press soil into the trench, wherein the packer wheel is oriented at a second angle relative to the soil surface greater than the first angle.

8. The double shoot coulter assembly of claim 7, wherein the packer wheel comprises an annular cavity extending about an outer circumference of the packer wheel, the annular cavity configured to direct soil into the trench.

9. The double shoot coulter assembly of claim 7, wherein the second angle is approximately 95 to 105 degrees.

10. The double shoot coulter assembly of claim 7, wherein a first intersection of a longitudinal axis of the soil engaging blade and a rotational axis of the packer wheel forms a first acute angle, and wherein a second intersection of the longitudinal axis of the soil engaging blade and a centerline of the packer wheel forms a second acute angle.

11. The double shoot coulter assembly of claim 7, wherein the packer wheel is positioned directly behind the soil engaging blade and the packer wheel is toed outwardly relative to the disc blade and the soil engaging blade.

12. The double shoot coulter assembly of claim 7, wherein a rotational axis of the packer wheel is oriented at a third angle between 5 and 15 degrees relative to the soil surface.

13. The double shoot coulter assembly of claim 7, wherein the soil engaging blade comprises a first side adjacent to the disc blade, and a second side, opposite the first side, that is configured to remove soil from the side of the trench.

14. A double shoot coulter assembly for an agricultural implement comprising:

a support structure;

a disc blade rotatably mounted to the support structure and configured to form a trench in a soil surface;

a soil engaging blade mounted to the support structure and configured to remove soil from a side of the trench; and

a packer wheel disposed behind the soil engaging blade and configured to press soil into the trench, wherein a rotational axis of the packer wheel is oriented at a first angle between 5 and 15 degrees relative to the soil surface.

15. The double shoot coulter assembly of claim 14, wherein the packer wheel comprises an annular cavity extending about an outer circumference of the packer wheel, the annular cavity configured to direct soil into the trench.

16. The double shoot coulter assembly of claim 14, wherein the disc blade is oriented at a second angle relative to the soil surface and the packer wheel is oriented at a third angle between approximately 95 and 105 degrees relative to the soil surface, the third angle being greater than the second angle.

17. The double shoot coulter assembly of claim 14, wherein a first intersection of a longitudinal axis of the soil engaging blade and the rotational axis of the packer wheel forms a first acute angle, and a second intersection of the longitudinal axis of the soil engaging blade and a centerline of the packer wheel forms a second acute angle.

18. The double shoot coulter assembly of claim 14, wherein the soil engaging blade comprises a first side adjacent to the disc blade, and a second side, opposite the first side, that is configured to remove soil from the side of the trench.

19. The double shoot coulter assembly of claim 14, wherein the packer wheel is positioned directly behind the soil engaging blade.

20. The double shoot coulter assembly of claim 14, wherein the packer wheel is toed outwardly relative to the disc blade and the soil engaging blade.