Curtain airbag for a motor vehicle and bracket for fastening a curtain airbag to a motor vehicle

• US 8,505,961 B2
• Filed: 12/03/2009
• Issued: 08/13/2013
• Est. Priority Date: 12/11/2008
• Status: Active Grant

• Current Assignee: Autoliv AB (Autoliv Incorporated)
• Original Assignee: Autoliv AB (Autoliv Incorporated)
• Inventors: Jakobsson, Brje
• Primary Examiner(s): BROWN, DREW J
• Application Number:
  US13/139,202
• Publication Number:
  US 20110266778A1
• Time in Patent Office: 1,349 Days
• Field of Search: 280/728.2, 280/730.2
• US Class Current: 280/728.2
• CPC Class Codes: B60R 21/213 in vehicle roof frames or pillars
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge

Abstract

A curtain airbag for a motor vehicle includes a two-layer lug for fastening to the motor vehicle formed by a first layer which is folded back upon itself to a second layer. The two-layer lug includes an opening in the area of the fold. A bracket is provided between the layers. The bracket projects through the opening with a fastening shoulder, and the curtain airbag can be fastened to the motor vehicle via the fastening shoulder.

Claims

1. A curtain airbag for a motor vehicle comprising:

a two-layer lug for fastening to the motor vehicle formed by a first layer and a second layer, the first layer including a fold such that the first layer is folded back upon itself to the second layer, the two-layer lug including an opening proximate the fold and a bracket between the first and second layers, the bracket projecting through the opening with a fastening shoulder thereof;

wherein the curtain airbag is fastenable to the motor vehicle via the fastening shoulder.

2. The curtain airbag according to claim 1, wherein the bracket with one side rests against an inner surface of the fold.

3. The curtain airbag according to claim 1, wherein the bracket has a planar plate-shaped structure.

4. The curtain airbag according to claim 1, wherein the bracket has a greater stiffness than the lug.

5. The curtain airbag according to claim 1, wherein a width of the bracket is larger than a width of the lug and further wherein a surface of the lug contacting the bracket is laterally limited by dogs projecting from the contact surface.

6. The curtain airbag according to claim 1, wherein a side of the bracket via which a load is introduced from the curtain airbag into the bracket, is turned back upon itself in order to form a bigger radius.

7. The curtain airbag according to claim 1, wherein the fastening shoulder comprises a non-circular fastening opening.

8. The curtain airbag according to claim 1, wherein the curtain airbag is held together to a package by a wrapper and that the wrapper with one end is mounted on the bracket.

9. The curtain airbag according to claim 8, wherein the wrapper comprises an opening and that the wrapper is mounted on the bracket by the fastening shoulder engaging with the opening.

10. The curtain airbag according to claim 8, wherein the wrapper and the lug have a one-piece configuration.

11. The curtain airbag according to claim 10, wherein the lug is fastened to the curtain airbag by two spaced straps and further wherein the wrapper is formed by a third strap of the lug located between the spaced straps.

12. The curtain airbag according to claim 11, wherein a hollow space formed between the first and second layers is limited by the two spaced straps being fastened to the curtain airbag and/or by the two spaced straps extending in different directions in such a way that the bracket located between the first and second layers is secured against slipping out.

13. The curtain airbag according to claim 1, wherein the fastening shoulder is arranged on the bracket via a narrow point.

14. The curtain airbag according to claim 1, wherein a width of the fastening shoulder is larger than a width of the opening.

15. The curtain airbag according to claim 1, wherein the opening is formed by a slit, the slit perpendicular to the fold.

16. A bracket for fastening a curtain airbag to a motor vehicle comprising:

a base body which can be positioned between two layers of the curtain airbag, and a fastening shoulder, which can be pushed through an opening provided along a fold line connecting the layers;

wherein a width of the fastening shoulder is larger than a width of the opening.

17. The bracket according to claim 16, wherein the fastening shoulder is connected to the base body via a narrow point.

18. The bracket for fastening a curtain airbag to a motor vehicle of claim 16, in combination with the curtain airbag, the base body positioned between the two layers of the curtain airbag.

19. A bracket for fastening a curtain airbag to a motor vehicle comprising:

a base body which can be positioned between two layers of the curtain airbag, and a fastening shoulder, which can be pushed through an opening provided in the connecting area of the layers, wherein the base body comprises dogs projecting from the contact surface of the layers of the curtain airbag.

20. A two-layer lug comprising:

a first layer;

a second layer;

an opening; and

a bracket between the first and second layers, the bracket including a mounting portion projecting through the opening;

wherein the first layer includes a fold such that the first layer is folded back upon itself to the second layer, the opening being along the fold.