Inflatable curtain with pleats

• US 7,185,914 B2
• Filed: 09/24/2003
• Issued: 03/06/2007
• Est. Priority Date: 09/24/2003
• Status: Expired due to Fees

• Current Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Original Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Inventors: Gammill, Kurt, Recker, James L.
• Primary Examiner(s): Dickson; Paul N.
• Assistant Examiner(s): FREEDMAN, LAURA
• Application Number:
  US10/669,807
• Publication Number:
  US 20050062267A1
• Time in Patent Office: 1,259 Days
• Field of Search: 280/730.2, 280/743.1
• US Class Current: 280/730.2
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge
• CPC Class Codes: B60R 21/237 characterised by the way they are folded

Abstract

An inflatable curtain is provided that may be mounted on or proximate to a vehicle'"'"'s side roof rail. The inflatable curtain includes a first panel and a second panel that is attached to the first panel. The first panel and the second panel are generally made of fabric materials such as nylon and the like. At least one first pleat is added to the first panel. The first pleat is constructed such that when the inflatable curtain is inflated with inflation gas, the first pleat opens into at least one first bulge that changes the deployment trajectory of the inflatable curtain. At least one second pleat may additionally be added to the curtain. The second pleat is added to the second panel and is designed such that during inflation, the second pleat will open into a second bulge that further changes the deployment trajectory of the inflatable curtain.

Claims

1. An inflatable curtain comprising:

a first panel having at least one first pleat formed by doubling a portion of the material of the first panel back upon itself twice such that there are two folds in the material of the first panel, the first pleat constructed such that when the inflatable curtain is inflated with inflation gas, the first pleat opens into at least one first bulge that changes the deployment trajectory of the inflatable curtain; and

a second panel that is attached to the first panel, wherein the inflatable curtain is designed to be positioned along a vehicle roof rail.

2. An inflatable curtain as in claim 1 wherein the first bulge is designed to interact with a portion of a vehicle interior.

3. An inflatable curtain as in claim 1 wherein the first pleat opens into the first bulge prior to the curtain being completely filled with the inflation gas.

4. An inflatable curtain as in claim 1 wherein the first bulge is designed such that the deploying inflatable curtain will clear a trim panel on a vehicle interior.

5. An inflatable curtain as in claim 1 wherein the first panel is attached to the second panel via sewing.

6. An inflatable curtain as in claim 1 wherein the first panel is attached to the second panel via adhesive bonding.

7. An inflatable curtain as in claim 1 wherein the first pleat opens downwards when the inflatable curtain is installed onto a vehicle interior.

8. An inflatable curtain as in claim 1 wherein the first pleat opens upwards when the inflatable curtain is installed onto a vehicle interior.

9. An inflatable curtain as in claim 1 wherein the first pleat spans the length of the first panel.

10. An inflatable curtain as in claim 1 further comprising at least one second pleat added to the second panel, the second pleat constructed such that when the inflatable curtain inflates, the second pleat opens into at least one second bulge.

11. An inflatable curtain as in claim 10 wherein the second bulge changes the deployment trajectory of the inflatable curtain.

12. An inflatable curtain as in claim 10 wherein the second pleat is formed by folding the second panel.

13. An inflatable curtain as in claim 1 wherein the first pleat spans a portion of the length of the first panel.

14. An inflatable curtain comprising:

a first panel;

a second panel that is attached to the first panel; and

at least one first pleat added to the first panel and formed by doubling a portion of the material of the first panel back upon itself twice such that there are two folds in the material of the first panel, and at least one second pleat added to the second panel and formed by doubling a portion of the material of the second panel back upon itself twice such that there are two folds in the material of the second panel, the first pleat and the second pleat constructed such that when the inflatable curtain is inflated with inflation gas, the first pleat opens into at least one first bulge and the second pleat opens into at least one second bulge, the first pleat and the second pleat positioned such that the first bulge and the second bulge change the deployment trajectory of the inflatable curtain, wherein the inflatable curtain is designed to be positioned along a vehicle roof rail.

15. An inflatable curtain as in claim 14 wherein the first bulge and the second bulge are designed to interact with a portion of a vehicle interior.

16. An inflatable airbag as in claim 15 wherein the first pleat spans the length of the first panel and the second pleat spans the length of the second panel.

17. An inflatable airbag as in claim 15 wherein the first pleat spans a portion of the length of the first panel and the second pleat spans a portion of the length of the second panel.

18. An inflatable airbag as in claim 15 wherein the first pleat spans a portion of the length of the first panel.

19. An inflatable curtain as in claim 15 wherein the second pleat spans a portion of the length of the second panel.

20. An inflatable curtain as in claim 14 wherein the first pleat and the second pleat open into the first bulge and the second bulge prior to the curtain being completely filled with the inflation gas.

21. An inflatable curtain as in claim 14 wherein the first bulge is designed such that the deploying inflatable curtain will clear a trim panel on a vehicle interior.

22. An inflatable curtain as in claim 14 wherein the first panel is attached to the second panel via sewing.

23. An inflatable curtain as in claim 14 wherein the first panel is attached to the second panel via adhesive bonding.

24. An inflatable curtain as in claim 14 wherein the first pleat opens upwards and the second pleat opens downwards when the inflatable curtain is installed onto a vehicle interior.

25. An inflatable curtain as in claim 14 wherein the first pleat opens downwards and the second pleat opens upwards when the inflatable curtain is installed onto a vehicle interior.

26. An inflatable curtain as in claim 14 wherein the first pleat is aligned with the second pleat.

27. An inflatable curtain as in claim 14 wherein the first pleat is offset from the second pleat.

28. A method for changing the deployment trajectory of an inflatable curtain comprising:

obtaining an inflatable curtain comprising a first panel and a second panel, the second panel being attached to the first panel, wherein the inflatable curtain is designed to be positioned along a vehicle roof rail; and

adding at least one first pleat to the first panels, the first pleat formed by doubling a portion of the material of the first panel back upon itself twice such that there are two folds in the material of the first panel, the first pleat constructed such that when the inflatable curtain inflates, the first pleat opens into at least one first bulge that changes the deployment trajectory of the inflatable curtain.

29. A method as in claim 28 wherein the first bulge is designed to interact with a portion of a vehicle interior.

30. A method as in claim 28 wherein the first pleat opens into the first bulge prior to the curtain being completely inflated.

31. A method as in claim 28 wherein the first bulge is designed such that the deploying inflatable curtain will clear a trim panel on a vehicle interior.

32. A method as in claim 28 wherein the inflatable curtain further comprises at least one second pleat added to the second panel the second pleat formed by arranging the second panel such that only a portion of the material of the second panel is doubled back upon itself, the second pleat constructed such that when the inflatable curtain inflates, the second pleat opens into at least one second bulge.

33. A method as in claim 32 wherein the second bulge changes the deployment trajectory of the inflatable curtain.