Sway adjustment apparatus

Patent metadata

Field	Value
Publication number	US-11684002-B2
Application number	US-202017122695-A
Country	US
Kind code	B2
Filing date	Dec 15, 2020
Priority date	Dec 15, 2020
Publication date	Jun 27, 2023
Grant date	Jun 27, 2023

Abstract

A sway adjustment apparatus includes a casing, a fastener positioned within an interior of the casing, a first seal positioned near a first end of the casing between the fastener and the casing, a second seal positioned near a second end of the casing between the fastener and the casing, a cover positioned at a first end of the fastener, and end member positioned at a second end of the fastener. A first set of external threads on the fastener cooperate with internal threads in the casing. The first set of external threads and the internal threads are positioned between the first seal and the second seal. Rotating the fastener in a first direction extends the fastener from the casing. Rotating the fastener in a second direction retracts the fastener into the casing. The end member maintains the position of the fastener within the casing.

First claim

What is claimed is:

1. A sway adjustment apparatus comprising:
a casing including a first end and a second end, the casing including internal threads on an interior surface;
a fastener positioned within an interior of the casing, the fastener including a first set of external threads on an exterior surface, the first set of external threads cooperating with the internal threads of the casing, the fastener rotates in a first direction to extend the fastener from the casing and rotates in a second direction to retract the fastener into the casing;
a first seal positioned near the first end of the casing, the first seal positioned between the interior surface of the casing and the exterior surface of the fastener;
a second seal positioned near the second end of the casing, the second seal positioned between the interior surface of the casing and the exterior surface of the fastener, the first and second seals forming a lubricant reservoir to maintain lubricant in the first set of external threads of the fastener and the internal threads of the casing;
a cover positioned at a first end of the fastener; and
an end member positioned at a second end of the fastener, the end member maintaining the position of the fastener within the casing;
wherein the fastener includes a first surface positioned next to the first set of external threads, the first surface interacts with the first seal, and the first surface has a larger circumference than the first set of external threads.

2. The sway adjustment apparatus of claim 1 , further comprising:
a lubricant fitting positioned within an orifice located between the first and second ends of the casing, lubricant being added to the lubricant reservoir via the lubricant fitting.

3. The sway adjustment apparatus of claim 1 , wherein the fastener includes a second set of external threads, the first set of external threads positioned between the first and second seals, and the second set of external threads positioned on an opposite side of the second seal.

4. The sway adjustment apparatus of claim 3 , wherein the fastener includes a second surface positioned between the first set of threads and the second set of threads, and the second surface interacts with the second seal.

5. The sway adjustment apparatus of claim 4 , wherein the first set of external threads has a larger circumference than the second surface.

6. The sway adjustment apparatus of claim 5 , wherein the second surface has a larger circumference than the second set of external threads.

7. The sway adjustment apparatus of claim 1 , wherein the casing includes a rim positioned at the first end and a channel spaced apart from the rim a first distance.

8. The sway adjustment apparatus of claim 1 , wherein the cover limits an amount of retraction.

9. The sway adjustment apparatus of claim 1 , wherein the end member limits an amount of extension.

10. A sway adjustment apparatus comprising:
a casing including a first end and a second end, the casing including internal threads on an interior surface;
a fastener positioned within an interior of the casing, the fastener including a first set of external threads and a second set of external threads on an exterior surface, the first set of external threads cooperating with the internal threads of the casing, the fastener rotating in a first direction to extend the fastener from the casing and rotating in a second direction to retract the fastener into the casing;
a first seal positioned near the first end of the casing, the first seal positioned between the interior surface of the casing and the exterior surface of the fastener;
a second seal positioned near the second end of the casing, the second seal positioned between the interior surface of the casing and the exterior surface of the fastener, the first and second seals forming a lubricant reservoir to maintain lubricant in the first set of external threads of the fastener and the internal threads of the casing;
a cover positioned at a first end of the fastener; and
an end member positioned at a second end of the fastener, the end member maintaining the position of the fastener within the casing;
wherein the first set of external threads is positioned between the first and second seals, the second set of external threads is positioned on an opposite side of the second seal, and the first set of external threads has a larger circumference than the second set of external threads.

11. The sway adjustment apparatus of claim 10 , wherein the fastener includes a first surface positioned next to the first set of external threads, and the first surface interacts with the first seal.

12. The sway adjustment apparatus of claim 11 , wherein the fastener includes a second surface positioned between the first set of threads and the second set of threads, and the second surface interacts with the second seal.

13. The sway adjustment apparatus of claim 12 , wherein the first surface has a larger circumference than the first set of external threads.

14. The sway adjustment apparatus of claim 13 , wherein the first set of external threads has a larger circumference than the second surface.

15. The sway adjustment apparatus of claim 14 , wherein the second surface has a larger circumference than the second set of external threads.

16. The sway adjustment apparatus of claim 10 , wherein the casing includes a rim positioned at the first end and a channel spaced apart from the rim a first distance.

17. The sway adjustment apparatus of claim 10 , further comprising:
a lubricant fitting positioned within an orifice located between the first and second ends of the casing, lubricant being added to the lubricant reservoir via the lubricant fitting.

18. The sway adjustment apparatus of claim 10 , wherein the cover limits an amount of retraction.

19. The sway adjustment apparatus of claim 10 , wherein the end member limits an amount of extension.

20. A sway adjustment apparatus comprising:
a casing including a first end and a second end, the casing including internal threads on an interior surface;
a fastener positioned within an interior of the casing, the fastener including a first set of external threads, as second set of external threads, a first surface, and a second surface on an exterior surface, the first set of external threads cooperating with the internal threads of the casing, the fastener rotating in a first direction to extend the fastener from the casing and rotating in a second direction to retract the fastener into the casing;
a first seal positioned near the first end of the casing, the first seal positioned between the interior surface of the casing and the exterior surface of the fastener;
a second seal positioned near the second end of the casing, the second seal positioned between the interior surface of the casing and the exterior surface of the fastener, the first and second seals forming a lubricant reservoir to maintain lubricant in the first set of external threads of the fastener and the internal threads of the casing;
a cover positioned at a first end of the fastener, the cover limiting an amount of retraction; and
an end member positioned at a second end of the fastener, the end member maintaining the position of the fastener within the casing;
wherein the first set of external threads is positioned between the first and second seals, and the second set of external threads is positioned on an opposite side of the second seal;
wherein the first surface is positioned next to the first set of external threads,

Assignees

• Deere & Co

Inventors

• Desai Kalyani Dadasaheb
• Jagtap Amol Hanmant

Classifications

• A01B59/041 Primary

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• A01B1/00 Primary

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