Airbag arrangement

Patent metadata

Field	Value
Publication number	US-12060027-B2
Application number	US-202118044044-A
Country	US
Kind code	B2
Filing date	Aug 27, 2021
Priority date	Sep 10, 2020
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

The invention relates to an airbag arrangement for a motor vehicle, with—an airbag ( 1 ), the airbag ( 1 ) having a first cushion layer ( 1.1 ) and a second cushion layer ( 1.2 ) opposite to the first cushion layer ( 1.1 ), and—at least one tether arrangement ( 2 ), the tether arrangement being connected to the airbag ( 1 ) and being connectable with one end to the motor vehicle outside the airbag ( 1 ).

First claim

The invention claimed is:

1. An airbag arrangement for a motor vehicle, comprising:
an airbag including:
a lateral section; and
a frontal section comprising:
a first cushion layer; and
a second cushion layer opposite to the first cushion layer, wherein in a deployed state the lateral section is arranged laterally beside an occupant and the frontal section is arranged in front of the occupant; and

at least one tether arrangement, the tether arrangement being connected to the airbag and being connectable with one end to the motor vehicle outside the airbag,
wherein the tether arrangement extends from the outside of the airbag through the first cushion layer to the second cushion layer.

2. The airbag arrangement according to claim 1 , wherein the tether arrangement comprises a first tether outside the airbag, the one end of the first tether being connectable to the motor vehicle, and at least one second tether inside the airbag, the first tether and the at least one second tether being connected to each other for transferring forces from the second cushion layer via the at least one second tether to the first tether.

3. The airbag arrangement according to claim 2 , wherein the connection between the first tether and the at least one second tether is within a trunk of the airbag.

4. The airbag arrangement according to claim 3 , the trunk being flexible to the first cushion layer in the deployed state.

5. The airbag arrangement according to claim 3 , the trunk, the first tether and the at least one second tether being connected jointly by at least one seam.

6. The airbag arrangement according to claim 1 , wherein the second tether broadens towards the second cushion layer.

7. The airbag arrangement according to claim 1 , wherein the airbag comprises an extension at the frontal section opposite to the lateral section, which extension extends from the frontal section backwards, wherein a sail is extending from the extension to the lateral section along the frontal section, so that the sail is arranged between the occupant and the frontal section in the deployed state.

8. A vehicle seat arrangement for a motor vehicle, with
a backrest,
a seat cushion, and
an air bag arrangement according to claim 1 , wherein an airbag module comprising the airbag is arranged in the backrest and the airbag is shaped in such a way that in the deployed state the frontal section of the airbag is arranged directly in front of a central axis of the backrest and wherein the tether arrangement is connected with the one end to the backrest.

9. The vehicle seat arrangement according to claim 8 , wherein the tether arrangement is connected to a back side of the backrest via a pretensioner, a load limiter and/or a tether retractor.

10. An airbag arrangement for a motor vehicle, comprising:
an airbag including:
a first cushion layer; and
a second cushion layer opposite to the first cushion layer;
a trunk connected to the first cushion layer and extending into the airbag, wherein the trunk is flexible to the first cushion layer in a deployed state of the airbag; and

a tether arrangement comprising:
a first tether outside the airbag connectable to the motor vehicle; and
a second tether inside the airbag connected to the airbag, the first tether and the second tether connected to each other within the trunk, the trunk surrounding the tether arrangement adjacent the first cushion layer.

11. The airbag arrangement according to claim 10 , wherein the trunk, the first tether, and the at least one second tether are connected by at least one seam.

12. The airbag arrangement according to claim 10 , wherein the second tether broadens towards the second cushion layer.

13. The airbag arrangement according to claim 10 , wherein the trunk comprises:
a first end adjacent the first cushion layer; and
a second end within the airbag, wherein the trunk narrows from the first end to the second end.

14. The airbag arrangement according to claim 13 , wherein the first end extends outside of the airbag to an exterior of the first cushion layer.

15. The airbag arrangement according to claim 10 , wherein the airbag comprises a frontal section, wherein in the deployed state the frontal section is arranged in front of the occupant, wherein the frontal section includes the first cushion layer and the second cushion layer.

16. The airbag arrangement according to claim 15 , wherein the airbag comprises an extension at the frontal section, which extension extends from the frontal section backwards, wherein a sail extends from the extension along the frontal section such that the sail is arranged between the occupant and the frontal section in the deployed state.

17. A vehicle seat arrangement for a motor vehicle, with
a backrest,
a seat cushion, and
an air bag arrangement according to claim 15 , wherein an airbag module comprising the airbag is arranged in the backrest and the airbag is shaped in such a way that in the deployed state a frontal section of the airbag is arranged directly in front of a central axis of the backrest and wherein the tether arrangement is connected with the one end to the backrest.

18. The vehicle seat arrangement according to claim 17 , wherein the tether arrangement is connected to a back side of the backrest via a pretensioner, a load limiter and/or a tether retractor.

Assignees

• Autoliv Dev

Inventors

• Schock Marc
• Unger Martin
• Unger Johann
• Giorgini Paolo
• Huf Andreas
• Martin Robert
• Ober Florian

Classifications

• B60R2021/23388

  having ends which are movable or detachable during deployment · CPC title

• B60R2021/23386

  External tether means · CPC title

• B60R2021/23384

  having ends which are movable or detachable during deployment · CPC title

• B60R2021/23382

  Internal tether means · CPC title

• B60R2021/23146

  seat mounted · CPC title