Air bag assembly including bias element

• US 20020140209A1
• Filed: 03/30/2001
• Published: 10/03/2002
• Est. Priority Date: 03/30/2001
• Status: Abandoned Application

• Current Assignee: Delphi Technologies, Inc. (Aptiv PLC)
• Original Assignee: Delphi Technologies, Inc. (Aptiv PLC)
• Inventors: Waid, Bryan T., Webber, James Lloyd, Starner, Allen Richard, Hanson, Craig M.
• Application Number:
  US09/823,264
• Publication Number:
  US 20020140209A1
• Time in Patent Office: Days
• US Class Current: 280/728.2
• CPC Class Codes: B60R 2021/0004 Frontal collision
• CPC Class Codes: B60R 2021/0006 Lateral collision
• CPC Class Codes: B60R 2021/161 characterised by additional means for controlling deployment trajectory
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge

Abstract

An air bag system in a vehicle having opposing upper front interior corners. The system includes at least one air bag assembly located proximate one of the upper front interior corners. The air bag is in fluid communication with a gas expelling inflator and includes a frontal impact portion sized and shaped for deploying along a predetermined deployment path in front of a vehicle occupant. A biasing element of flat pliable character is held in place in hinging relation along an attached edge at an anchoring position inboard of the air bag. The biasing element is unattached at a free end which is extended away from the anchoring position upon deployment of the air bag cushion such that the biasing element is advanced in hinging fashion ahead of the frontal impact portion as the frontal impact portion is deployed in front of the vehicle occupant.

Claims

1. An air bag system in a vehicle having opposing upper front interior corners, the vehicle having a driver side and a passenger side including seats for supporting vehicle occupants on opposing sides of the vehicle adjacent the upper front interior corners, the air bag system comprising:

at least a first air bag assembly located proximate one of the upper front interior comers comprising an air bag in fluid communication with a gas expelling inflator, wherein the air bag includes at least a frontal impact portion being sized and shaped for deploying along a predetermined deployment path in front of a vehicle occupant; and

a biasing element of substantially flat pliable character which is held in place in substantially hinging relation along an attached edge at an anchoring position adjacent the air bag, the biasing element being extended away from the anchoring position upon deployment of the air bag such that the biasing element is advanced in hinging fashion ahead of the frontal impact portion of the air bag along the deployment path as the frontal impact portion is deployed in front of the vehicle occupant.

2. The invention according to claim 1, wherein said first air bag assembly is located at the upper front interior corner at the driver side of the vehicle.

3. The invention according to claim 1, wherein said first air bag assembly is located at the upper front interior comer at the passenger side of the vehicle.

4. The invention according to claim 1, wherein said first air bag assembly is located along a n A-pillar at the passenger side of the vehicle.

5. The invention according to claim 1, wherein said first air bag assembly is located along an A-pillar at the driver side of the vehicle.

6. The invention according to claim 1, wherein the biasing element comprises a sheet of textile material.

7. The invention according to claim 6, wherein the biasing element comprises a textile material of woven construction formed from a plurality of filament yams.

8. The invention according to claim 7, wherein said filament yarns are characterized by a linear density in the range of about 210 to about 840 denier.

9. The invention according to claim 8, wherein said filament yarns are characterized by a filament linear density of not greater than about 6 denier per filament.

10. The invention according to claim 8, wherein said filament yams are nylon yarns.

11. The invention according to claim 8, wherein said filament yarns are polyester yarns.

12. The invention according to claim 1, wherein a friction reducing surface finish extends across at least a portion of a face of the biasing element in facing relation to the air bag during deployment.

13. The invention according to claim 1, wherein a friction enhancing surface finish extends across at least a portion of a face of the biasing element facing away from the air bag during deployment.

14. The invention according to claim 1, wherein a lubricating coating extends across at least a portion of a face of the biasing element in facing relation to the air bag during deployment and wherein a friction enhancing coating extends across at least a portion of a face of the biasing element facing away from the air bag during deployment.

15. The invention according to claim 1, wherein the air bag further includes a side impact portion in fluid communication with the frontal impact portion, and wherein the side impact portion is sized and shaped for deploying downwardly and to the side of the vehicle occupant.

17. The invention according to claim 16, wherein the biasing element comprises a sheet of textile material.

18. The invention according to claim 17, wherein the biasing element comprises a textile material of woven construction formed from a plurality of filament yarns.

19. The invention according to claim 18, wherein said filament yarns are characterized by a linear density in the range of about 210 to about 840 denier.

20. The invention according to claim 19, wherein said filament yarns are characterized by a filament linear density of about 3 to about 6 denier per filament.

21. The invention according to claim 16, wherein the biasing element comprises a sheet of textile material and wherein the air bag further includes a side impact portion in fluid communication with the frontal impact portion, the side impact portion being sized and shaped for deploying downwardly and to the side of the vehicle occupant.

22. The invention according to claim 16, wherein a friction reducing surface finish extends across at least a portion of a face of the biasing element in facing relation to the air bag during deployment.

23. The invention according to claim 16, wherein a friction enhancing surface finish extends across at least a portion of a face of the biasing element facing away from the air bag during deployment.

24. The invention according to claim 16, wherein a lubricating coating extends across at least a portion of a face of the biasing element in facing relation to the air bag during deployment and wherein a friction enhancing coating extends across at least a portion of a face of the biasing element facing away from the air bag during deployment.

16. An air bag system in a vehicle having opposing upper front interior comers, the vehicle having a driver side and a passenger side including seats for supporting vehicle occupants on opposing sides of the vehicle adjacent the upper front interior corners, the air bag system comprising:

a first air bag assembly located proximate one of the upper front interior comers and a second air bag assembly proximate the other of the upper front interior corners, each of said first and second air bag assemblies comprising an air bag in fluid communication with a gas expelling inflator, wherein the air bag includes at least a frontal impact portion being sized and shaped for deploying downwardly along a predetermined inboard deployment path in front of a vehicle occupant, each of the first and second air bag assemblies further comprising a biasing element of substantially flat pliable character which is held in place in substantially hinging relation along an attached edge at an anchoring position adjacent the air bag, the biasing element being extended away from the anchoring position upon deployment of the air bag such that the biasing element is advanced in hinging fashion ahead of the frontal impact portion of the air bag along the deployment path towards the center of the vehicle as the frontal impact portion is deployed in front of the vehicle occupant.

25. An air bag system in a vehicle having opposing upper front interior corners, the vehicle having a driver side and a passenger side including seats for supporting vehicle occupants on opposing sides of the vehicle adjacent the upper front interior corners and first and second forward pillar elements extending generally in front of and to the side of said seats on opposing sides of the vehicle, the air bag system comprising:

a first air bag assembly located proximate one of the upper front interior comers and a second air bag assembly proximate the other of the upper front interior corners, each of the first and second air bag assemblies comprising an air bag stored at a position extending at least partially along one of said first and second forward pillar elements wherein the air bag is in fluid communication with a gas expelling inflator and wherein the air bag includes at least a frontal impact portion being sized and shaped for deploying downwardly along a predetermined inboard deployment path in front of a vehicle occupant;

each of said first and second air bag assemblies further including a biasing element of substantially flat pliable character which is held in place in substantially hinging relation along an attached edge at an anchoring position generally inboard of the air bag, the biasing element including an unattached free edge substantially opposing the attached edge, the free edge being extended away from the anchoring position upon deployment of the air bag such that the biasing element is advanced in hinging fashion ahead of the frontal impact portion of the air bag along the inboard deployment path as the frontal impact portion is deployed in front of the vehicle occupant.