Airbag device

• US 20050098993A1
• Filed: 11/05/2004
• Published: 05/12/2005
• Est. Priority Date: 11/07/2003
• Status: Abandoned Application

• Current Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Matsumura, Shinzo
• Application Number:
  US10/981,444
• Publication Number:
  US 20050098993A1
• Time in Patent Office: Days
• US Class Current: 280/743.1
• CPC Class Codes: B60R 2021/23509 Fabric
• CPC Class Codes: B60R 2021/23514 coated fabric
• CPC Class Codes: B60R 2021/23519 Resin for coating fabric B60R2021/23514
• CPC Class Codes: B60R 21/235 characterised by their material
• CPC Class Codes: B60R 21/237 characterised by the way they are folded

Abstract

An airbag device in which the optimum conditions of the airbag are set so the airbag device can fully protect an occupant while being able to be mounted in a vehicle more efficiently. The airbag device includes an airbag which is normally stored and configured to be inflated and deployed toward an occupant in the event of a vehicle emergency. The ratio of the volume of the airbag when packaged to the volume of the airbag when inflated is at least approximately 1:30.

Claims

1. An airbag device for protecting an occupant of a vehicle, comprising:

an airbag module; and

an airbag disposed in the airbag module and configured to deploy and inflate in a direction toward an occupant in an event of a vehicle emergency;

wherein the airbag has a packaged volume when the airbag is disposed in the airbag module and an inflated volume when the airbag is inflated; and

wherein a ratio of the packaged volume to the inflated volume is less than approximately 1;

30.

2. The airbag device of claim 1, wherein the ratio is less than approximately 1:

40.

3. The airbag device of claim 2, wherein the ratio is less than approximately 1:

50.

4. The airbag device of claim 3, wherein the ratio is less than approximately 1:

60.

5. The airbag device of claim 4, wherein the ratio is less than approximately 1:

70.

6. The airbag device of claim 5, wherein the ratio is less than approximately 1:

80.

7. The airbag device of claim 6, wherein the ratio is less than approximately 1:

90.

8. The airbag device of claim 1, wherein the airbag includes a fabric made of yarns having a denier of 200 to 500.

9. The airbag device of claim 1, wherein the airbag includes a fabric made of yarns having a denier of 200 to 300.

10. The airbag device of claim 1, wherein the airbag includes a fabric made of yarns having a denier of 200 to 400.

11. The airbag device of claim 1, wherein the airbag includes a fabric made of yarns having a denier of 300 to 400.

12. The airbag device of claim 1, wherein the airbag includes a fabric made of yarns having a denier of 300 to 500.

13. The airbag device of claim 1, wherein the airbag includes a fabric made of yarns having a denier of 400 to 500.

14. The airbag device of claim 1, wherein the airbag includes a low permeability material.

15. The airbag device of claim 14, wherein the low permeability material comprises plastic.

16. The airbag device of claim 14, wherein low permeability material comprises an elastomer.

17. The airbag device of claim 16, wherein the elastomer is resin.

18. The airbag device of claim 14, wherein the low permeability material comprises tightly woven yarns.

19. The airbag device of claim 1, wherein the airbag includes a coating.

20. The airbag device of claim 18, wherein the coating is disposed on the airbag such that the amount of coating to airbag surface area does not exceed 150 grams ounce of coating to 1 square meter of airbag surface area.

21. The airbag device of claim 18, wherein the airbag includes only one layer of coating.

22. The airbag device of claim 18, wherein the airbag includes only two layers of coating.

23. The airbag device of claim 1, wherein the airbag includes only a first panel and a second panel.

24. The airbag device of claim 23, wherein the first panel and the second panel are joined at a periphery of the first panel and a periphery of the second panel.

25. The airbag device of claim 1, wherein the airbag is a driver side airbag.

26. The airbag device of claim 1, wherein the airbag is a passenger side airbag

27. The airbag device of claim 1, wherein the airbag is configured to deploy toward a front portion of the occupant.

28. An airbag device for protecting an occupant of a vehicle, comprising:

an airbag module; and

an airbag disposed in the airbag module to occupy a first volume and configured to deploy and inflate in a direction toward an occupant in an event of a vehicle emergency to occupy a second volume;

wherein the airbag has a first volume and a second volume; and

wherein the second volume is at least approximately 30 times the first volume.

29. The airbag device of claim 28, wherein the second volume is at least approximately 60 times the first volume.

30. The airbag device of claim 28, wherein the second volume is at least approximately 60 times the first volume.

31. The airbag device of claim 28, wherein the second volume is at least approximately 70 times the first volume.

32. The airbag device of claim 28, wherein the second volume is at least approximately 80 times the first volume.

33. The airbag device of claim 28, wherein the second volume is at least approximately 90 times the first volume.

34. The airbag device of claim 28, wherein the airbag includes a fabric made of yarns having a denier of 200 to 500.