Airbag to load plate attachment mechanism

• US 6,991,252 B2
• Filed: 07/24/2002
• Issued: 01/31/2006
• Est. Priority Date: 07/24/2002
• Status: Expired due to Fees

• Current Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Original Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Inventors: Enders, Mark L.
• Primary Examiner(s): Crawford, Gene O.
• Assistant Examiner(s): SHARMA, RASHMI K
• Application Number:
  US10/202,299
• Publication Number:
  US 20040017065A1
• Time in Patent Office: 1,287 Days
• Field of Search: 280/728.1, 280/728.2, 280/732, 280/751, 280/752, 280/730.1, 280/753, 280/728.3
• US Class Current: 280/728.1
• CPC Class Codes: B60R 2021/21525 the lid being fixed on the bag, or forming part of the bag wall, or the bag itself being used as wall liner
• CPC Class Codes: B60R 2021/23169 specially adapted for knee protection
• CPC Class Codes: B60R 21/217 Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together

Abstract

A load distributing airbag module having an airbag, a load plate, and a fastener is disclosed. The airbag has an airbag mount and the load plate has a load plate attachment member. The fastener may define a generally enclosed shape to capture the airbag mount and the load plate attachment member. To capture the airbag mount and the load plate attachment member, the fastener has an unfastened and fastened state. In the unfasten state, the fastener may be a “U” shaped channel. In the fastened state, the fastener is generally box shaped.

Claims

1. A force distributing airbag module comprising:

a load plate having a load plate attachment member;

an airbag having an airbag mount comprising a mounting strap, wherein the load plate is positionable over the airbag; and

a fastener having at least one plate defining a substantially enclosed cross-section, wherein the substantially enclosed cross-section of the fastener secures the load plate attachment member and the airbag mount.

2. The apparatus, as recited in claim 1, wherein the mounting strap is fixed at two ends to the airbag.

3. The apparatus, as recited in claim 1, wherein the mounting strap is integrally formed to the airbag.

4. The apparatus, as recited in claim 1, wherein load plate attachment member is a bridging section defined by two openings in the load plate.

5. The apparatus, as recited in claim 4, wherein the bridging section is defined by two substantially parallel slits in the load plate.

6. The apparatus, as recited in claim 4, wherein the bridging section is an independent structure attached to the load plate.

7. The apparatus, as recited in claim 1, wherein the fastener is generally elongated.

8. The apparatus, as recited in claim 1, wherein the fastener further comprises an interlocking system.

9. The apparatus, as recited in claim 8, wherein the interlocking system comprises a dovetail configuration.

10. The apparatus, as recited in claim 1, wherein the fastener is from about 0.5 inches to about 3 inches in length.

11. The apparatus, as recited in claim 1, wherein the fastener material thickness is from about 0.02 inches to about 0.06 inches thick.

12. The apparatus, as recited in claim 1, wherein multiple tangs are formed into a single fastener.

13. A process for attaching a load plate to an airbag, wherein the load plate has a load plate attachment member and the airbag has an airbag mount, the process comprising:

providing a fastener bent to define an open channel;

inserting the airbag mount into the open channel of the fastener;

inserting the load plate attachment member into the open channel of the fastener;

bending the fastener to define a substantially enclosed cross-section, such that the fastener bendably secures the load plate to the airbag.

14. The process, as recited in claim 13, wherein the open channel is generally “

U”

shaped.

15. The process, as recited in claim 13, wherein the closed channel is generally box shaped.

16. The process, as recited in claim 13, wherein the airbag mount is a strap fixed at two ends to the airbag.

17. The process, as recited in claim 16, wherein the mounting strap is integrally formed to the airbag.

18. The process, as recited in claim 13, wherein the bridging section is defined by two substantially parallel openings in the load plate.

19. The process, as recited in claim 13, wherein the bridging section is an independent structure attached to the load plate.

20. The process, as recited in claim 13, wherein the fastener is generally elongated.

21. The process, as recited in claim 13, wherein bending comprises forcing the open channel against a form to bend the fastener from a substantially open channel to a substantially closed channel.

22. The process, as recited in claim 13, wherein the fastener has a first tang upper portion and a second tang upper portion.

23. The process, as recited in claim 22, wherein first tang upper portion and the second tang upper portion are bent away from each other.

24. The process, as recited in claim 22, wherein bending further comprises interlocking the first tang upper portion of the fastener to the second tang upper portion of the fastener.

25. The process, as recited in claim 22, wherein interlocking is achieved through a dovetail mating shape integrally formed in the fastener.

26. A process for attaching a load plate to an airbag, wherein the load plate has an opening and the airbag has a mounting strap, the process comprising:

providing a substantially elongated “

U”

shaped fastener, wherein the “

U”

shaped fastener has an open upper end an a closed lower end;

inserting the airbag mounting strap through the open upper end of the “

U”

shaped fastener to positioned the mounting strap in proximity to the closed lower end, such that the open upper end of the fastener points away from the airbag;

slidably inserting the upper open end of the “

U”

shaped fastener through the openings in the load plate;

bending the upper open ends of the “

U”

shaped fastener to secure the load plate to the airbag.

27. The process, as recited in claim 26, wherein the bent upper open ends of the “

U”

shaped fastener create a substantially box shape.

28. The process, as recited in claim 26, wherein bending comprises forcing the open upper ends of the “

U”

shaped fastener against a contoured structure to induce the bending.

29. The process, as recited in claim 26, wherein the plurality of openings in the load plate are substantially parallel slits.

30. A force distributing airbag module comprising:

a load plate having a load plate attachment member comprising a bridging section defined by two substantially parallel slits in the load plate;

an airbag having an airbag mount, wherein the load plate is positionable over the airbag; and

a fastener having at least one plate defining a substantially enclosed cross-section, wherein the substantially enclosed cross-section of the fastener secures the load plate attachment member and the airbag mount.

31. The apparatus, as recited in claim 30, wherein airbag mount is a mounting strap.

32. The apparatus, as recited in claim 31, wherein the mounting strap is fixed at two ends to the airbag.

33. The apparatus, as recited in claim 31, wherein the mounting strap is integrally formed to the airbag.

34. The apparatus, as recited in claim 30, wherein the fastener is generally elongated.

35. The apparatus, as recited in claim 30, wherein the fastener further comprises an interlocking system.

36. The apparatus, as recited in claim 35, wherein the interlocking system comprises a dovetail configuration.