Fastening element and decoupling assembly

Patent metadata

Field	Value
Publication number	US-12196283-B2
Application number	US-202118262415-A
Country	US
Kind code	B2
Filing date	Dec 14, 2021
Priority date	Feb 1, 2021
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

A fastening element and a decoupling assembly, the fastening element for add-on parts connected to a body structure of a motor vehicle, a method for producing the de-coupling assembly and assembling it.

First claim

The invention claimed is:

1. A component made of a thermoplastic, which is configured to be assembled with a second identical component and a decoupling element made of an elastomer to form a decoupling assembly for an add-on part of a motor vehicle connected to a body structure, comprising
i) a base plate including a central opening,
ii) at least two identically shaped cylinder wall segments arranged equidistantly from one another on the upper side of the base plate on a circular line coaxial with the center of the opening, each upper side facing the central opening and having at least one spring element which is configured to engage in thread flanks of a threaded bolt when the threaded bolt is introduced into the opening,
wherein the length of the circular arc between the at least two cylinder wall segments is at least as great as the length of an upper edge of a cylinder wall segment, and
wherein each of the cylinder wall segments includes a detent lug on its upper edge, wherein each lug is configured to engage in a corresponding recess of the second identical component and to lock the two components together, and

iii) recesses arranged between each of the at least two cylinder wall segments.

2. The component as claimed in claim 1 further comprising more than two cylinder wall segments.

3. The component as claimed in claim 2 , further comprising centering elements arranged at the edge of the opening between the equidistantly arranged cylinder wall segments.

4. The component as claimed in claim 2 , wherein the thermoplastic is a polyamide, polyamide 6, or polyamide 66, optionally reinforced with glass fibers.

5. The component as claimed in claim 2 , which is produced by an injection molding process.

6. The component as claimed in claim 1 , further comprising centering elements arranged at the edge of the opening between the equidistantly arranged cylinder wall segments.

7. The component as claimed in claim 6 , wherein the thermoplastic is a polyamide, polyamide 6, or polyamide 66, optionally reinforced with glass fibers.

8. The component as claimed in claim 6 , which is produced by an injection molding process.

9. The component as claimed in claim 1 , wherein the thermoplastic is a polyamide, polyamide 6, or polyamide 66, optionally reinforced with glass fibers.

10. The component as claimed in claim 9 , which is produced by an injection molding process.

11. The component as claimed in claim 1 , which is produced by an injection molding process.

12. A decoupling assembly for an add-on part on a body structure of a motor vehicle, which comprises two identical components as claimed in claim 1 and a decoupling element made of an elastomer.

13. The decoupling assembly as claimed in claim 12 , wherein the elastomer is an ethylene propylene diene rubber, a thermoplastic elastomer, or a crosslinked olefin-based thermoplastic elastomer.

14. The decoupling assembly as claimed in claim 13 , wherein the decoupling element includes a central cylindrical channel.

15. The decoupling assembly as claimed in claim 13 , wherein the decoupling element has a circumferential groove on its outside.

16. The decoupling assembly as claimed in claim 12 , wherein the decoupling element includes a central cylindrical channel.

17. The decoupling assembly as claimed in claim 16 , wherein the decoupling element has a circumferential groove on its outside.

18. The decoupling assembly as claimed in claim 12 , wherein the decoupling element has a circumferential groove on its outside.

19. A method for vibration decoupling of an add-on part on a body structure of a motor vehicle, the method comprising steps of:
introducing a decoupling element made of an elastomer and including a central cylindrical channel into a recess of a holder of the add-on part, and fixing the decoupling element in the recess,
after introducing and fixing the decoupling element, plugging two components as claimed in claim 1 into the central cylindrical channel of the decoupling element from opposite sides of the recess of the holder of the attachment, and locking the two components together to form a decoupling assembly, and
plugging the decoupling assembly onto a threaded bolt attached to a body structure of the motor vehicle, wherein plugging the decoupling assembly onto the threaded bolt further comprises causing spring elements of the decoupling assembly to engage in thread flanks of the threaded bolt and fix the decoupling assembly.

Assignees

• Audi Ag

Inventors

• Nübling Philipp

Classifications

• F16B35/044

  Specially-shaped ends · CPC title

• F16F15/08

  with rubber springs {(grommet- or bushing-type resilient mountings F16F1/3732, F16F1/38); with springs made of rubber and metal (arrangement of internal-combustion or jet-propulsion units B60K5/12; mounting of propulsion plants on vessels B63H21/30; mounting of vehicle drivers' cabs B62D33/0604)} · CPC title

• F16B37/0857

  with the threaded portions of the nut engaging the thread of the bolt by the action of one or more springs or resilient retaining members (F16B37/0821 and F16B37/0835 take precedence) · CPC title

• F16F2226/041

  Clipping · CPC title

• F16F2226/044

  Snapping · CPC title