Spring guide

Patent metadata

Field	Value
Publication number	US-9686899-B2
Application number	US-201414464533-A
Country	US
Kind code	B2
Filing date	Aug 20, 2014
Priority date	Aug 21, 2013
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

An agricultural tillage implement includes: a frame member; and a leveling blade assembly. The leveling blade assembly includes: a leveling blade; an arm coupling the frame member with the leveling blade; and a spring assembly including a spring and a spring guide assembly, the spring and the spring guide assembly being coupled with the arm and the frame member, the spring guide assembly including a sleeve which is slidably related to the spring and which is made of an ultra-high-molecular-weight (UHMW) plastic.

First claim

What is claimed is:

1. An agricultural tillage implement, comprising:
a frame member; and
a leveling blade assembly including:
a leveling blade;
an arm operably coupling the frame member with the leveling blade;
a mounting mechanism connected at least to the arm;
a bolt operably connected to the arm and having an upper end, a lower end and a free end;
a spring assembly including a spring and a spring guide assembly, the spring and the spring guide assembly being coupled with the arm and said frame member, the spring guide assembly including a sleeve that slides inside of the spring and which is made of a non-metallic material;
at least one saddle guide connected to a surface of the mounting mechanism between the mounting mechanism and the arm, the saddle guide being positioned next to the spring;

wherein the bolt is positioned through the sleeve and through the spring, the sleeve is positioned about the bolt near an upper end thereof, the sleeve extends downward and covers at least an upper one-third of the bolt, wherein at least a portion of the spring is positioned between the sleeve and the saddle guide.

2. The agricultural tillage implement of claim 1 , wherein the spring is a compression spring and the non-metallic material is a UHMW plastic.

3. The agricultural tillage implement of claim 2 , wherein the spring guide assembly is a shock absorber which is positioned within the spring.

4. The agricultural tillage implement of claim 1 , wherein the saddle guide is spaced a distance from the arm, and wherein the at least one saddle guide comprises two saddle guides positioned across from each other and next to the spring.

5. The agricultural tillage implement of claim 4 , wherein a diameter of the sleeve is less than an inner diameter of the spring.

6. The agricultural tillage implement of claim 1 , further comprising a lower sleeve positioned about the lower end of the bolt.

7. The agricultural tillage implement of claim 6 , wherein the lower end of the bolt is held in a position by the lower sleeve, the lower end having a free end and the arm formed to include a space between the free end and the arm, and wherein a lower end of the arm extends beyond the free end of the bolt.

8. The agricultural tillage implement of claim 7 , wherein the bolt and the arm are connected at an angle such that an axis extending through the bolt and through the free end does not intersect the lower portion of the arm.

9. A leveling blade assembly of an agricultural tillage implement including a frame member, the leveling blade assembly comprising:
a leveling blade;
an arm configured for coupling the frame member with the leveling blade;
a bolt operably connected to the arm and including a lower end which has a free end;
a spring assembly including a spring and a spring guide assembly, the spring and the spring guide assembly being coupled with the arm and being configured for being coupled with the frame member, the spring guide assembly including a sleeve that slides inside of the spring and which is made of a non-metallic material, the sleeve positioned about the bolt near an upper end thereof, the sleeve extending downward and covering at least an upper one-third of the bolt;
a lower sleeve;
wherein the bolt is positioned through the sleeve and through the spring, the lower end of the bolt having the lower sleeve positioned thereabout and spaced a distance from the sleeve positioned at an upper end of the bolt, the free end of the bolt and the arm formed to include a space therebetween, a lower end of the arm extending a distance beyond the free end of the bolt.

10. The leveling blade assembly of claim 9 , wherein the spring is a compression spring and the non-metallic material sleeve is formed from a UHMW plastic.

11. The leveling blade assembly of claim 10 , wherein the spring guide assembly is a shock absorber which is positioned within the spring.

12. The leveling blade assembly of claim 9 , further comprising a mounting mechanism connecting the arm to the frame member.

13. The leveling blade assembly of claim 12 , further comprising at least one saddle guide connected to a surface of the mounting mechanism between the mounting mechanism and the arm, the saddle guide positioned next to the spring.

14. The leveling blade assembly of claim 13 , wherein the sleeve is positioned about the bolt near an upper end thereof and extends about at least an upper one-third of the bolt, and wherein at least a portion of the spring is positioned between the sleeve and the saddle guide.

15. The leveling blade assembly of claim 14 , wherein a diameter of the sleeve is less than an inner diameter of the spring.

16. The leveling blade assembly of claim 9 , wherein the bolt and the arm are connected at an angle such that an axis extending through the bolt and through the free end does not intersect a lower portion of the arm.

17. A leveling blade assembly of an agricultural tillage implement including a frame member, said leveling blade assembly comprising:
a leveling blade;
an arm operably coupling the frame member with the leveling blade;
a mounting mechanism connected at least to the arm;
a bolt operably connected to said arm and including an upper end and a lower end which has a free end;
a spring assembly including a spring and a spring guide assembly, the spring and the spring guide assembly coupled with the arm and configured to be coupled with the frame member, the spring guide assembly including a sleeve that slides inside of the spring; and
at least one saddle guide connected to a surface of the mounting mechanism between the mounting mechanism and the arm, the saddle guard positioned next to the spring;
wherein the bolt is positioned through the sleeve and through the spring, and the sleeve is positioned about the bolt near an upper end thereof, such that the sleeve extends downward and covers at least an upper one-third of the bolt, and at least a portion of the spring is positioned between the sleeve and the saddle guard.

18. The leveling blade assembly of claim 17 , wherein the saddle guide is spaced a distance from the arm, and wherein the at least one saddle guide comprises at least two saddle guides spaced apart and positioned next to the spring.

Assignees

• Cnh Ind America Llc

Inventors

• Kovach Michael G
• Gerber Rick L

Classifications

• A01B49/027

  with a rotating, soil working support element, e.g. a roller · CPC title

• A01B33/025

  with spring tools, i.e. resiliently- or flexibly-attached rigid tools · CPC title

• A01B61/046 Primary

  the device including an energy accumulator for restoring the tool to its working position · CPC title