Fabric for an air-bag including tape-like yarns

Patent metadata

Field	Value
Publication number	US-10066325-B2
Application number	US-201314416426-A
Country	US
Kind code	B2
Filing date	Jul 3, 2013
Priority date	Jul 25, 2012
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

A fabric for an air-bag comprising interwoven sets of warp and weft yarns, wherein the yarns of one of the least 1.5, and the yarns of the other set of yarns are not tape-like and have a width-depth ratio less than 1.5.

First claim

The invention claimed is:

1. A fabric for an air-bag comprising warp yarns and an interwoven plurality of weft yarns, wherein the yarns of one of the plurality of warp and weft yarns are tape-like, having a width/depth ratio of at least 1.5, and the yarns of the other yarns are not tape-like and have a width-depth ratio less than 1.5.

2. An air-bag comprising:
a fabric including a plurality of warp yarns and a plurality of weft yarns interwoven with the plurality of warp yarns, the yarns of one of the pluralities of warp and weft yarns being tape-like with a width/depth ratio of at least 1.5, and the yarns of the other of the pluralities of warp and weft yarns are non tape-like and have a width-depth ratio less than 1.5.

3. The fabric according to claim 2 , wherein the tape-like yarns are monofilament tape elements.

4. The fabric according to claim 2 , wherein the tape-like yarns are formed from a polymer material having an additional material mixed into a base polymer.

5. The fabric according to claim 4 , wherein the additional material has a specific heat capacity which is significantly higher than that of the base polymer.

6. The fabric according to claim 5 , wherein the further material comprises metal particles or a phase change material.

7. The fabric according to claim 4 , wherein the further material is an adhesive.

8. The fabric according to claim 4 , wherein the tape-like yarns are formed from multiple layers of material, with one of the layers comprising a layer of a base polymer.

9. The fabric according claim 2 , wherein the tape-like yarns are formed from multiple layers of material, with one of the layers comprising a layer of a base polymer.

10. The fabric according to claim 9 , wherein a further layer of material is formed from a material with a significantly higher specific heat capacity than that of the base polymer.

11. The fabric according to claim 9 , wherein a further layer comprises an adhesive.

12. The fabric according to claim 2 , wherein the tape-like yarns include embossed regions, corrugation and/or wrinkles.

13. The fabric according to claim 2 , wherein at least one layer of the tape-like yarns has perforations formed therethrough.

14. The air-bag of claim 2 , wherein the tape-like yarns have a first stiffness and the non tape-like yarns have a second stiffness, the first stiffness being greater than the second stiffness.

15. The air-bag according to claim 14 , wherein a first stiffness is at least 15N greater than the second stiffness.

16. The air-bag according to claim 14 , wherein the air-bag is an inflatable curtain-type air-bag.

17. The combination of claim 16 in further combination with an air-bag module, wherein the air-bag is stored in a rolled configuration, and the air-bag is rolled around an axis which is generally parallel with the tape-like yarns.

18. The air-bag according to claim 16 , wherein the tape-like yarns having the first stiffness extend longitudinally along a length of the inflatable curtain-type air-bag and the non tape-like yarns having a second stiffness are perpendicular thereto.

19. A vehicle including an inflatable curtain-type air-bag, the air-bag comprising:
a fabric including a plurality of warp yarns and a plurality of weft yarns interwoven with the plurality of warp yarns, the yarns of one of the pluralities of warp and weft yarns being tape-like with a width/depth ratio of at least 1.5, and the yarns of the other of the pluralities of warp and weft yarns are non tape-like and have a width-depth ratio less than 1.5.

20. The vehicle of claim 19 , wherein the tape-like yarns have a first stiffness and the non tape-like yarns have a second stiffness, the first stiffness being greater than the second stiffness, the tape-like yarns having the first stiffness extend longitudinally along a length of the inflatable curtain-type air-bag and the non tape-like yarns having a second stiffness are perpendicular thereto.

Assignees

• Autoliv Dev

Inventors

• Finn Hugh
• Stow David
• Potter Kent

Classifications

• D03D1/04

  Sack- or bag-like articles · CPC title

• B60R2021/23514

  coated fabric · CPC title

• B60R21/235

  characterised by their material · CPC title

• Y10T442/3033

  Including a strip or ribbon · CPC title

• D10B2505/124

  Air bags · CPC title