Ground engaging tool alignment assembly

• US 7,493,964 B2
• Filed: 09/08/2004
• Issued: 02/24/2009
• Est. Priority Date: 09/08/2004
• Status: Active Grant

• Current Assignee: CNH Industrial Canada, Ltd (CNH Industrial N.V.)
• Original Assignee: CNH Canada Limited (CNH Industrial N.V.)
• Inventors: Henry, Jim W., Neudorf, Blake R.
• Primary Examiner(s): Will; Thomas B
• Assistant Examiner(s): Mitchell; Joel F
• Application Number:
  US10/936,197
• Publication Number:
  US 20060048954A1
• Time in Patent Office: 1,630 Days
• Field of Search: 172/749, 172/750, 172/753, 172/762, 172/763, 172/764, 172/769, 172/772, 374/55, 374/56, 374/57
• US Class Current: 172/762
• CPC Class Codes: A01B 35/225 the tools being adapted to allow the chisel point to be easily fitted or removed from the shank
• CPC Class Codes: E02F 9/2875 Ripper tips

Abstract

A tillage implement includes a ground engaging tool assembly configured to enhance alignment relative to a forward direction of travel of a tow vehicle. The ground engaging tool assembly generally includes a ground engaging tool, a shank, and clip coupled therebetween. The ground engaging tool includes a mounting portion that defines a channel configured to receive an upper portion of the clip. The shank includes a lower portion that defines an elongated slot configured to receive a lower portion of the clip. The clip is configured to align the mounting portion of the ground engaging tool with respect to the shank and the forward direction of travel. The mounting portion and associated clip are also configured to not cause undesired disturbance of the ground beyond the side-to-side width of the shank relative to the forward direction of travel.

Claims

1. A ground engaging tool assembly configured to be mounted to a main frame of a ground engaging implement pulled by a tow vehicle in a forward direction of travel, comprising:

a shank having a lower portion that defines a slot and having a first width generally defined transverse to a length of the slot;

a ground engaging tool having a ground engaging end and a mounting portion, the mounting portion having a second width less than the first width; and

a clip having a first portion and a second portion, the first portion of the clip positioned in the slot defined by the lower portion of the shank, the second portion of the clip received by the mounting portion of the ground engaging tool,

wherein;

the slot is directed towards the mounting portion of the ground engaging tool; and

the slot in the lower portion of the shank and the clip attached thereon align the ground engaging tool relative to the forward direction of travel.

2. The ground engaging tool assembly as recited in claim 1, wherein the clip comprises:

a bottom face;

a top face located opposite the bottom face;

a first sidewall and a second sidewall, the first sidewall adjoined with the top face and the second sidewall adjoined with the top face, the first and the second sidewalls each angled in a downward direction and opposite outward directions from the top face; and

a third sidewall and a fourth sidewall adjoined with the bottom face, wherein the third and fourth sidewalls each are angled in an upward direction and opposite outward directions from the bottom face.

3. The ground engaging tool assembly as recited in claim 2, wherein the lower portion of the shank that defines the slot comprises a plurality of slot faces defined therein, the plurality of slot faces comprising:

a bottom face having a first width;

an open face opposite the bottom face of the slot, the open face having a second width that is greater than the first width of the bottom face; and

a first sidewall and a second sidewall each extending in an upward and opposite outward directions from the bottom face toward the open face,

wherein the first and second sidewalls that define the slot engage the third and fourth sidewalls, respectively, of the clip.

4. The ground engaging tool assembly as recited in claim 2, wherein the lower portion of the shank includes a first shank opening and a second shank opening in communication with the slot, wherein the clip includes a first clip opening and a second clip opening extending between the top face and the bottom face of the clip, wherein the first clip opening aligns with the first shank opening to receive a first fastener and the second clip opening aligns with the second shank opening to receive a second fastener, the first and second fasteners attaching the clip to the shank.

5. The ground engaging tool assembly as recited in claim 4, wherein the slot defines a central longitudinal axis, and wherein the first and second shank openings at the lower portion of the shank are offset from the central longitudinal axis.

6. The ground engaging tool assembly as recited claim 1, wherein the mounting portion of the ground engaging tool includes a plurality of channel walls that define a channel, the plurality of channel walls comprising:

a first channel wall and a second channel wall that intersect at an apex, the first and second channel walls each diverging in downward and opposite outward directions from the apex; and

a third channel wall and a fourth channel, the third channel wall extending inward and downward from the first channel wall and the fourth channel wall extending inward and downward from the second channel wall.

7. The ground engaging tool assembly as recited in claim 1, wherein the shank includes a forward face and a rearward face and an opening extending therebetween relative to the forward direction of travel, wherein the shank further includes a first side face that is perpendicular to the forward face, and wherein the slot is located along the first side face of the shank.

8. The ground engaging tool assembly as recited in claim 1, wherein the clip comprises a V-shaped extension.

9. The ground engaging tool assembly of claim 8, wherein the slot defined by the shank is V-shaped to receive the V-shaped extension of the clip.

10. The ground engaging tool assembly as recited in claim 7,

wherein the forward face of the shank has a shank width in a side-to-side direction transverse to the forward direction of travel, and wherein the mounting portion of the ground engaging too has a mount width across the first and second channel walls in a direction parallel to the shank width, and wherein the shank width is at least equal to the mount width.

11. A ground engaging implement configured to be pulled by a tow vehicle in a forward direction of travel, comprising:

a main frame having a hitch configured to couple the main frame to the tow vehicle;

a shank connected to the main frame, the shank having a lower portion that defines a slot;

a ground engaging tool having a ground engaging tip located opposite an elongated mounting portion; and

a clip having a first portion and a second portion, the first portion of the clip received in the slot defined by the lower portion of the shank, the second portion of the clip received by the elongated mounting portion of the soil engaging tool, and wherein the clip has a leading end configured to abut a stop wall formed in the shank and defining an end of the slot when the clip is received in the shank and a trailing end opposite the leading end that is proximate the elongated mounting portion when the clip is received in the shank and wherein the leading end has a profile matched to that of the trailing end, wherein;

the slot is directed towards the mounting portion of the ground engaging tool; and

the slot at the lower portion of the shank and the attached clip are configured to align the attached ground engaging tool relative to the forward direction of travel of the implement.

12. The ground engaging implement as recited in claim 11, wherein the shank has a forward face relative to the forward direction of travel, the forward face having a shank width in a side-to-side direction relative to the forward direction of travel, and wherein the mounting portion of the ground engaging tool has a mount width in a direction parallel to the shank width, the shank width being at least equal to the mount width.

13. The ground engaging implement as recited in claim 11, wherein the clip comprises a bottom face having a V-shaped extension extending therefrom.

14. The ground engaging implement as recited in claim 13, wherein the lower portion of the shank includes a first shank opening and a second shank opening in communication with the slot, wherein the clip includes a first clip opening and a second clip opening, wherein the first clip opening aligns with the first shank opening to receive a first fastener and the second clip opening aligns with the second shank opening to receive a second fastener, the first and second fasteners coupling the clip with the shank.

15. The ground engaging implement as recited in claim 13, wherein the slot defined by the shank is V-shaped to receive the V-shaped extension of the clip.

16. The ground engaging implement of claim 11, wherein the slot of the lower portion of the shank is generally defined by a bottom face having a first width, an open face opposed to the bottom face of the slot, and a first sidewall and a second sidewall each extending upwardly and outwardly from the bottom face toward the open face, wherein the open face has a second width that is greater relative to the first width of the bottom face.

17. The ground engaging implement of claim 11, wherein the shank includes a forward face and a rearward face and an opening extending therebetween relative to the forward direction of travel, wherein the shank further includes a first side face that is perpendicular to the forward face, and wherein the slot is located along the first side face of the shank.

18. The ground engaging implement of claim 11, wherein the clip comprises:

a top face and a bottom face;

a first sidewall and a second sidewall each angled outwardly and downwardly from the top face; and

a third sidewall and a fourth sidewall, the third and fourth sidewalls angled upwardly and outwardly from the bottom face; and

a V-shaped extension extending from the bottom face.

19. The ground engaging implement as recited in claim 18, where the slot defined by the shank is V-shaped to receive the V-shaped extension of the clip.

20. A method of aligning a ground engaging tool with a shank, the shank having a lower portion and an upper portion, the shank upper portion attached to a main frame of a ground engaging implement configured to be pulled by a tow vehicle in a forward direction of travel, the method comprising the steps of:

inserting a first portion of a clip in a slot defined by a lower portion of a shank of the ground engaging implement until a leading end of the first portion has engaged a wall of the shank defining an end of the slot; and

receiving a second portion of the clip in a mounting portion of a ground engaging tool, the ground engaging tool having a ground engaging end opposite the mounting portion,

wherein;

the slot is directed towards the mounting portion of the ground engaging tool; and

the slot at the lower portion of the shank and the clip align the ground engaging tool in the forward direction of travel of the ground engaging implement.