MOUNTING ARRANGEMENTS FOR AIRBAGS

• US 20140265263A1
• Filed: 03/15/2013
• Published: 09/18/2014
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Original Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Inventors: Shankar, Balaskandan, Hatfield, Mark
• Granted Patent: US 8,998,248 B2
• Time in Patent Office: Days
• US Class Current: 280/728.2
• CPC Class Codes: B60N 2/42718 with anti-submarining systems
• CPC Class Codes: B60N 2/42763 with anti-submarining systems
• CPC Class Codes: B60R 21/20 Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
• CPC Class Codes: B60R 21/207 in vehicle seats
• CPC Class Codes: B60R 21/2171 specially adapted for elongated cylindrical or bottle-like inflators with a symmetry axis perpendicular to the main direction of bag deployment, e.g. extruded reaction canisters B60R21/2176 takes precedence

Abstract

An airbag cushion assembly can include a mounting assembly and an airbag cushion. The mounting assembly includes a plate which may be coupled to the airbag cushion, and which may also include a fastener which is used to attach the assembly to a vehicle.

Claims

1. An airbag assembly comprising:

an inflator that comprises a mounting stem;

an inflatable airbag cushion that defines a cavity, wherein the airbag cushion comprises a first opening sized to receive at least a portion of the inflator into the cavity and a second opening through which the mounting stem of the inflator can extend from the cavity to an exterior of the airbag cushion; and

a mounting assembly that comprises a plate and an elongated fastener, wherein the elongated fastener is fixedly secured to the plate, and wherein the plate is coupled to the airbag cushion without the elongated fastener extending into the interior cavity of the airbag cushion.

2. The airbag assembly of claim 1, wherein the inflator further comprises an additional mounting stem that is configured to extend through the first opening of the airbag cushion when the other mounting stem of the inflator extends through the second opening of the airbag cushion.

3. The airbag assembly of claim 2, wherein the mounting stems are spaced from each other by a sufficient amount to prevent bunching of the airbag cushion between the first and second openings thereof.

4. The airbag assembly of claim 1, wherein the plate is transverse to the elongated fastener and extends radially outwardly from the elongated fastener.

5. The airbag assembly of claim 1, wherein the plate is rigid and comprises a surface that faces outwardly away from the airbag cushion to frictionally secure the airbag cushion to a separate vehicular structure.

6. The airbag assembly of claim 1, wherein the plate is coupled to the airbag cushion so as to be non-rotatable about a longitudinal axis defined by the elongated fastener.

7. The airbag assembly of claim 1, wherein the plate is coupled to the airbag cushion via stitching.

8. The airbag assembly of claim 7, wherein the plate comprises openings through which the stitching passes to couple the plate to the airbag cushion.

9. The airbag assembly of claim 1, wherein the mounting assembly further comprises a cover attached to the airbag cushion, wherein the cover cooperates with the airbag cushion to define a pocket at an exterior of the airbag cushion, and wherein the plate is at an interior of the pocket.

10. The airbag assembly of claim 9, wherein the cover is attached to the airbag cushion via stitching, and wherein the stitching fully encompasses the plate.

11. The airbag assembly of claim 1, wherein the elongated fastener comprises a threaded bolt.

12. The airbag assembly of claim 1, further comprising a housing that defines a first mounting opening and a second mounting opening, wherein the elongated fastener extends through the first mounting opening to secure the airbag cushion to the housing, and wherein the mounting stem of the inflator extends through the second opening of the airbag and through the second mounting opening of the housing to secure the inflator and the airbag to the housing.

13. The airbag assembly of claim 1, wherein the inflator is elongated in a longitudinal direction and the mounting stem extends in a direction perpendicular to the longitudinal direction.

14. An airbag assembly comprising:

an airbag cushion having an interior surface and an exterior surface, wherein the interior surface of the airbag cushion defines a cavity, and wherein the exterior surface comprises an attachment region; and

a plate at an exterior of the airbag cushion, wherein the plate is coupled to the airbag cushion such that the plate is restricted to the attachment region; and

an elongated fastener attached to the plate, wherein the elongated fastener extends from the plate in a direction that is away from the exterior surface of the cushion.

15. The airbag assembly of claim 14, further comprising a cover attached to the airbag cushion to define a pocket at an exterior of the airbag cushion, wherein the plate is at an interior of the pocket.

19. The airbag assembly of claim 14, wherein the plate is coupled to the airbag cushion so as to be non-rotatable, relative to the attachment region of the airbag cushion, about a longitudinal axis defined by the elongated fastener.

20. The airbag assembly of claim 14, wherein an area of the attachment region is the same as an area of the plate, and wherein the plate is attached directly to the airbag cushion.

21. The airbag assembly of claim 20, wherein the plate is attached to the airbag cushion via stitching.

22. The airbag assembly of claim 14, further comprising an inflator that comprises a mounting stem, wherein the airbag cushion comprises a first opening sized to receive at least a portion of the inflator into the cavity and a second opening through which the mounting stem of the inflator can extend from the cavity of the airbag cushion to an exterior of the airbag cushion.

23. The airbag assembly of claim 14, further comprising a housing that defines a mounting opening, wherein the elongated fastener extends through the mounting opening to secure the airbag cushion to the housing.

17. The airbag assembly of claim 17, wherein a periphery of the plate is shaped to cooperate with a periphery of the pocket to restrict the plate from rotating about an axis defined by the elongated fastener within the pocket.

16. The airbag assembly of claim 17, wherein an area of the attachment region is greater than an area of a surface of the plate that faces the attachment region, and wherein the plate is movable within the pocket.

18. The airbag assembly of claim 18, wherein the plate comprises one or more corners.

24. An airbag assembly comprising:

an airbag cushion defining an inflatable cavity at an interior thereof; and

an mounting assembly permanently secured to the airbag cushion, wherein the mounting assembly comprises;

an elongated fastener that comprises a proximal end and a distal end, wherein the distal end of the elongated fastener is at an exterior of the airbag cushion;

a plate attached to the fastener; and

an attachment element that extends through the airbag cushion to limit movement of the plate relative to the airbag cushion.

25. The airbag assembly of claim 24, wherein the mounting assembly further comprises a cover that cooperates with the airbag cushion to define a pocket within which the plate is restrained, and wherein the attachment element comprises stitching that secures the cover to the airbag cushion.

26. The airbag assembly of claim 24, wherein the attachment element comprises stitching that passes through each of the plate and the airbag cushion to directly attach the plate to the airbag cushion.

27. The airbag assembly of claim 24, wherein the proximal end of the elongated fastener is attached to the plate at an exterior of the airbag cushion.

28. The airbag assembly of claim 24, wherein the mounting assembly comprises one or more of a stitch, a staple, or a welding seam.