Airbag Having Functional Elements Integrated in the Weave

• US 20120061946A1
• Filed: 05/04/2010
• Published: 03/15/2012
• Est. Priority Date: 05/19/2009
• Status: Abandoned Application

• Current Assignee: Daimler AG (Mercedes-Benz Group AG)
• Original Assignee: Daimler AG (Mercedes-Benz Group AG)
• Inventors: Burczyk, Christian, Hirth, Andreas, Quarg, Lutz, Reiter, Friedrich, Ruedebusch, Clark
• Application Number:
  US13/321,032
• Publication Number:
  US 20120061946A1
• Time in Patent Office: Days
• US Class Current: 280/728.1
• CPC Class Codes: B60R 2021/23115 with inflatable support compartments creating an internal suction volume
• CPC Class Codes: B60R 2021/23533 characterised by the manufacturing process
• CPC Class Codes: B60R 2021/2395 comprising means to control the venting
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration
• CPC Class Codes: B60R 21/235 characterised by their material
• CPC Class Codes: B60R 21/239 characterised by their venting means
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

An air bag is provided with a air cushion formed of one woven fabric. At least one functional element, which provides the airbag with an additional function, is woven into the air cushion in one piece. The functional element can be a tube system of a support structure airbag and/or a valve for unfolding of a support structure airbag.

Claims

1-14. -14. (canceled)

15. An airbag for protection of an occupant in a motor vehicle, comprising:

an air cushion of a woven fabric; and

at least one functional element integrated in woven-in form in the air cushion, the at least one function element configured to provide the air cushion with an additional function.

16. The airbag according to claim 15, wherein the airbag is a support structure airbag.

17. The airbag according to claim 16, wherein the at least one functional element is a tube element of the support structure which is inflated during unfolding of the airbag.

18. The airbag according to claim 16, wherein the at least one functional element is an entire tube system of the support structure, which is inflated during unfolding of the airbag.

19. The airbag according to claim 15, wherein the at least one function element or a further functional element woven into the air cushion as one piece is a valve.

20. The airbag according to claim 19, wherein the valve is configured to open during unfolding of the airbag and close when the unfolded airbag is under load.

21. The airbag according to claim 20, wherein the valve has two layers of fabric that are movable in relation to one another.

22. The airbag according to claim 15, wherein the at least one functional element or a further functional element woven in one piece is a capture tape.

23. The airbag according to claim 15, wherein the entire air cushion is formed of one one-piece fabric section.

24. The airbag according to claim 23, wherein sections of the fabric section are joined together at their edges.

25. A process for manufacture of a support-structure airbag for occupant protection in a motor vehicle, comprising the step of:

weaving of a air cushion, wherein at least one functional element is woven in one piece in the air cushion, and the at least one functional element is configured to provide the air cushion with an additional function.

26. The process according to claim 25, wherein a tube element, a valve or a capture tape is woven into the air cushion as the at least one functional element.

27. The process according to claim 25, wherein the entire air cushion is formed of a one-piece fabric cut-out.

28. The process according to claim 27, wherein sections of the fabric section are joined to one another at their edges.