Airbag and Method for Producing Such an Airbag

• US 20130033026A1
• Filed: 01/27/2011
• Published: 02/07/2013
• Est. Priority Date: 02/13/2010
• Status: Active Grant

• Current Assignee: Daimler AG (Mercedes-Benz Group AG)
• Original Assignee: Daimler AG (Mercedes-Benz Group AG)
• Inventors: Bogenrieder, Ralf, Burczyk, Christian, Hirth, Andreas, Quarg, Lutz, Reiter, Friedrich
• Granted Patent: US 8,684,406 B2
• Time in Patent Office: Days
• US Class Current: 280/743.1
• CPC Class Codes: B60R 2021/23115 with inflatable support compartments creating an internal suction volume
• CPC Class Codes: B60R 2021/23523 Composite coated fabric B60R2021/23514
• 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 29/49412 with assembly, disassembly or composite article making

Abstract

An airbag with a valve device for a gaseous medium includes at least one textile layer and at least one foil that at least partially covers the textile layer such that due to the valve device at least one area of the airbag permeable by the medium can be at least partially opened when the valve device is in an open position and can be at least substantially sealed when the valve device is in a closed position.

Claims

1-10. -10. (canceled)

11. An airbag with a valve device for a gaseous medium, the valve device comprising:

a textile layer; and

a foil that covers the textile layer in at least one area,

wherein the textile layer and foil are configured such that at least one area of the airbag permeable by the medium is at least partially opened when the valve device is in an open position and is at least substantially sealed when the valve device is in a closed position.

12. The airbag according to claim 11, wherein the at least one area permeable by the medium is in the form of at least one opening in the foil.

13. The airbag according to claim 12, wherein the at least one area permeable by the medium of the foil is formed by perforation.

14. The airbag according to claim 13, wherein the perforation has a projection in an edge area of the at least one opening that extends away from the textile layer.

15. The airbag according to claim 11, wherein in the at least one area of the foil that covers the textile layer is bonded or stitched to the textile layer by way of connection areas a distance apart from one another.

16. The airbag according to claim 12, wherein at least one at least essentially tubular projection that at least partially surrounds the at least one opening is arranged in an edge area of the at least one opening.

17. The airbag according to claim 15, wherein the said projection has a tapering cross-section.

18. The airbag according to claim 12, further comprising:

at least one flap element corresponding to the at least one opening, the at least one flap element is configured to leave the at least one opening at least partially clear when the valve device is at least temporarily in the open position, and at least partially seals the at least one opening when the valve device is in a closed position.

19. The airbag according to claim 11, wherein the area permeable by the medium is formed by at least one foil area that is raised clear of the textile layer in the open position.

20. A method for producing an airbag, the method comprising:

forming a valve device for a gaseous medium in the airbag, by arranging at least one foil to at least partially cover at least one textile layer in such a manner that due to the valve device at least one area of the airbag permeable by the medium is at least partially opened when the valve device is in an open position and is at least substantially sealed when the valve device is in a closed position.