Bolt compression limiter

Patent metadata

Field	Value
Publication number	US-10948005-B2
Application number	US-201816016983-A
Country	US
Kind code	B2
Filing date	Jun 25, 2018
Priority date	Jun 25, 2018
Publication date	Mar 16, 2021
Grant date	Mar 16, 2021

Abstract

A bolt compression limiter includes a Belleville disc that applies a load to a flange of a bolt assembly and a component that applies a load to a limiter positioned within the flange, the limiter being shy of the top surface of the flange. The load applied to the flange is a first proportion and the load applied to the limiter is a second proportion of the total load applied when a bolt of the bolt assembly is tightened.

First claim

What is claimed is:

1. A bolt compression limiter comprising:
a Belleville disc that applies a load to the top of a flange of a bolt assembly; and
a component that applies a load to a limiter, the limiter being cylindrical in shape with an opening, positioned within the flange, the limiter being shy of the top surface of the flange,
wherein the load applied to the flange is a first proportion and the load applied to the limiter is a second proportion of the total load applied when a bolt of the bolt assembly is tightened.

2. The bolt compression limiter of claim 1 wherein the component is a second Belleville disc.

3. The bolt compression limiter of claim 1 wherein the load applied to the limiter is from about 25% to about 75% of the total load applied to the limiter and the flange.

4. The bolt compression limiter of claim 1 wherein the flange is made of a metallic material.

5. The bolt compression limiter of claim 1 wherein the flange is made of a composite material.

6. The bolt compression limiter of claim 1 wherein the limiter is press fit into the flange or held in place by a retention feature.

7. The bolt compression limiter of claim 1 wherein the component is a plurality of tangs.

8. The bolt compression limiter of claim 7 wherein each tang has a rectangular shape.

9. The bolt compression limiter of claim 7 wherein each tang has a first curved base, a second curved base that is smaller than the first curved base, and two straight sides.

10. The bolt compression limiter of claim 1 wherein the component is a helical spring.

11. A bolt compression limiter comprising:
a Belleville disc that applies a load to a flange of a bolt assembly, the Belleville disc residing on top of the flange: and
a biasing mechanism that applies a load to a limiter, the limiter being cylindrical in shape with an opening, positioned within the flange and shy of the top surface of the flange, the biasing mechanism positioned between the Belleville disc and the limiter, the biasing mechanism residing on top of the limiter, the load applied to the flange being a first proportion and the load applied to the limiter being a second proportion of the total load applied when a bolt of the bolt assembly is tightened.

12. The bolt compression limiter of claim 11 wherein the biasing mechanism is a second Belleville disc.

13. The bolt compression limiter of claim 11 wherein the load applied to the limiter is from about 25% to about 75% of the total load applied to the limiter and the flange.

14. The bolt compression limiter of claim 11 wherein the limiter is press fit into the flange.

15. The bolt compression limiter of claim 11 wherein the biasing mechanism is a plurality of tangs.

16. The bolt compression limiter of claim 15 wherein each tang has a rectangular shape.

17. The bolt compression limiter of claim 16 wherein each tang has a first curved base, a second curved base that is smaller than the first curved base, and two straight sides.

18. The bolt compression limiter of claim 11 wherein the component is a helical spring.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Griffiths Leonard
• Owen Shawn M
• Wulbrecht David A

Classifications

• F16B39/284

  Locking by means of elastic deformation ({F16B39/2825, F16B39/36,} F16B39/38 take precedence) · CPC title

• F16B39/26 Primary

  with spring washers fastened to the nut or bolt-head · CPC title

• F16B39/34

  Locking by deformable inserts or like parts · CPC title

• F16B43/009

  with a wedging effect in order to adjust the height of the washer · CPC title

• F16B39/24

  by means of washers, spring washers, or resilient plates that lock against the object (locking to the screw-thread F16B39/14 {, F16B39/34}, F16B39/36) · CPC title