Inflatable side curtain that moves occupant's head away from vehicle side structure

• US 7,828,321 B2
• Filed: 02/08/2005
• Issued: 11/09/2010
• Est. Priority Date: 09/28/2000
• Status: Expired due to Fees

• Current Assignee: TRW Vehicle Safety Systems Incorporated (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: TRW Vehicle Safety Systems Incorporated (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Stein, Russell E., Nayef, Ayad G., Boxey, Kevin J., Bakhsh, Ali Emam
• Primary Examiner(s): Dickson; Paul N.
• Assistant Examiner(s): Sliteris; Joselynn Y.
• Application Number:
  US11/053,469
• Publication Number:
  US 20060082107A1
• Time in Patent Office: 2,100 Days
• Field of Search: 280/730.2
• US Class Current: 280/730.2
• CPC Class Codes: B60R 2021/0018 Roll-over
• CPC Class Codes: B60R 2021/0048 Head
• CPC Class Codes: B60R 2021/23316 Inner seams, e.g. creating separate compartments or used as tethering means
• CPC Class Codes: B60R 21/213 in vehicle roof frames or pillars
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge
• CPC Class Codes: B60R 21/237 characterised by the way they are folded

Abstract

Apparatus (10) helps protect an occupant (152) of a vehicle (12) that has a side structure (16) and a roof (18). The apparatus (10) includes a vehicle occupant protection device (14) deployable away from the vehicle roof (18) into engagement with the occupant'"'"'s head (150) positioned against the side structure (16) to move the occupant'"'"'s head laterally away from the side structure.

Claims

1. Apparatus for helping to protect an occupant of a vehicle that has a side structure and a roof, said apparatus comprising:

a vehicle occupant protection device having a centerline and being deployable away from the vehicle roof, and a deflector for deflecting the protection device to deploy outboard of the centerline toward the side structure in a direction such that the protection device is configured to engage an occupant'"'"'s head and configured to move the occupant'"'"'s head laterally away from the side structure, wherein the protection device prior to deployment is packaged in a space defined between the deflector and the roof.

2. The apparatus recited in claim 1, wherein said protection device is deployable between the side structure of the vehicle and the occupant'"'"'s head.

3. The apparatus recited in claim 1, wherein said deflector is for directing said protection device to deploy toward a target location on the vehicle side structure, said target location configured to be selected to be above a 95^th percentile vehicle occupant'"'"'s head positioned against the side structure.

4. The apparatus recited in claim 3, wherein said deflector is adapted to overcome deployment forces exerted on said deflector by said protection device when said deflector reaches a deployment position.

5. The apparatus recited in claim 4, wherein said deployment forces have a magnitude of 200 or more pounds force.

6. The apparatus recited in claim 3, wherein said deflector comprises reinforcing portions constructed and arranged to help control deflection of said deflector under deployment forces exerted on said deflector by said protection device to help prevent said deflector from deflecting beyond a deployment position.

7. The apparatus recited in claim 3, wherein said target location is selected such that said protection device is configured to deploy into a tapered space between the occupant'"'"'s head and the side structure above a location where the occupant'"'"'s head is engaging the side structure, the protection device being configured such that continued deployment of said protection device forces said protection device between the occupant'"'"'s head and the side structure.

8. The apparatus recited in claim 1, wherein said protection device comprises an inflatable curtain.

9. Apparatus for helping to protect an occupant of a vehicle that has a side structure and a roof, said apparatus comprising:

a vehicle occupant protection device having a centerline and being deployable away from the vehicle roof and deflected outboard of the centerline toward the side structure in a direction such that the protection device is configured to engage an occupant'"'"'s head and configured to move the occupant'"'"'s head laterally away from the side structure; and

a deflector for directing said protection device to deploy toward a target location on the vehicle side structure, said target location being configured to be selected to be above the vehicle occupant'"'"'s head positioned against the side structure, the vehicle occupant being of a predetermined size of a 95^th percentile vehicle occupant,

wherein said deflector has a stored position prior to deployment of said protection device, said protection device when deployed exerting a deployment force on said deflector that urges said deflector to deflect away from said stored position to a deployment position in which said deflector is positioned for directing said protection device to deploy toward said target location on the vehicle side structure.

10. Apparatus for helping to protect an occupant of a vehicle that has a side structure and a roof, said apparatus comprising:

a vehicle occupant protection device having a centerline and being deployable away from the vehicle roof and deflected outboard of the centerline toward the side structure in a direction such that the protection device is configured to engage the occupant'"'"'s head and configured to move an occupant'"'"'s head laterally away from the side structure; and

a deflector for directing said protection device to deploy toward a target location on the vehicle side structure, said target location being configured to be selected to be above the vehicle occupant'"'"'s head positioned against the side structure, the vehicle occupant being of a predetermined size of a 95^th percentile vehicle occupant,

wherein said deflector comprises a deflecting portion, said deflecting portion comprising;

a first portion constructed and arranged to permit said protection device to deploy in a first direction in order to clear vehicle structure; and

a second portion constructed and arranged to direct said protection device in a second direction different than said first direction toward the target location.

11. The apparatus recited in claim 10, wherein said deflector further comprises:

a connector portion connectable to the vehicle to help connect said deflector to the vehicle;

a support portion for connecting said deflecting portion to said connector portion; and

reinforcing portions for helping to limit deflection of said deflector in response to deployment forces exerted by deployment of said protection device so that said deflector directs said protection device toward the target location.

12. The apparatus recited in claim 11, wherein said reinforcing portions are constructed and arranged to reinforce the interface between at least one of:

said connector portion and said support portion;

said support portion and said deflecting portion; and

said first and second portions of said deflecting portion.

13. The apparatus recited in claim 11, wherein said reinforcing portions comprise at least one of ribs and portions of said deflector having an increased cross-sectional area.

14. Apparatus for helping to protect an occupant of a vehicle that has a side structure and a roof, said apparatus comprising:

an inflatable vehicle occupant protection device having a centerline and being inflatable to deploy away from the vehicle roof;

an inflation fluid source for providing inflation fluid for inflating said protection device; and

a deflector for directing said protection device to deploy outboard of the centerline and toward a target location on the vehicle side structure, said target location being selected such that the protection device is configured to engage an occupant'"'"'s head and configured to move the occupant'"'"'s head laterally away from the side structure to allow said protection device to inflate between the side structure of the vehicle and the occupant'"'"'s head, wherein the protection device prior to deployment is packaged in a space defined between the deflector and the roof.

15. The apparatus recited in claim 14, wherein said target location is configured to be selected to be above a 95^th percentile vehicle occupant'"'"'s head positioned against the side structure.

16. The apparatus recited in claim 14, wherein said target location is selected such that said protection device is configured to deploy into a tapered space between the occupant'"'"'s head and the side structure above a location where the occupant'"'"'s head is engaging the side structure, continued deployment of said protection device forcing said protection device between the occupant'"'"'s head and the side structure.

17. The apparatus recited in claim 14, further comprising a fill tube for directing inflation fluid from said inflation fluid source into said protection device, said fill tube directing inflation fluid into said protection device in a direction different than the direction toward the vehicle side structure that said deflector directs said protection device.

18. The apparatus recited in claim 14, further comprising a housing for storing said protection device prior to deployment, said housing being separate from said deflector.

19. The apparatus recited in claim 14, wherein said deflector is configured to extend along a portion of the length of said protection device above locations on the side structure against which a normally seated occupant'"'"'s head may be positioned.

20. Apparatus for helping to protect an occupant of a vehicle that has a side structure and a roof, said apparatus comprising:

an inflatable vehicle occupant protection device having a centerline and being inflatable to deploy away from the vehicle roof;

an inflation fluid source for providing inflation fluid for inflating said protection device; and

a deflector for directing said protection device to deploy outboard of the centerline and toward a target location on the vehicle side structure, said target location being selected such that the protection device is configured to engage an occupant'"'"'s head and configured to move the occupant'"'"'s head laterally away from the side structure to allow said protection device to inflate between the side structure of the vehicle and the occupant'"'"'s head, wherein said deflector comprises;

a connector portion connectable to the vehicle to help connect said deflector to the vehicle;

a deflecting portion for directing said protection device to deploy toward the vehicle side structure;

a support portion for connecting said deflecting portion to said connector portion; and

reinforcing portions for helping to limit deflection of said connector portion, deflecting portion, and support portion in response to deployment forces exerted on said deflector by said protection device.

21. The apparatus recited in claim 20, wherein said deflecting portion comprises:

a first portion constructed and arranged to permit said protection device to deploy in a first direction in order to clear vehicle structure; and

a second portion constructed and arranged to direct said protection device in a second direction different than said first direction toward the target location.

22. The apparatus recited in claim 20, wherein said reinforcing portions comprise at least one of ribs and portions of said deflector having an increased cross-sectional area.

23. Apparatus for helping to protect an occupant of a vehicle that has a side structure and a roof, said apparatus comprising:

an inflatable vehicle occupant protection device having a centerline and being inflatable to deploy away from the vehicle roof;

an inflation fluid source for providing inflation fluid for inflating said protection device; and

a deflector for directing said protection device to deploy outboard of the centerline and toward a target location on the vehicle side structure, said deflector having a stored position prior to deployment of said protection device, said protection device while inflating exerting a deployment force on said deflector that urges said deflector to deflect away from said stored position to a deployment position in which said deflector is positioned for directing said protection device to deploy toward said target location on the vehicle side structure, said target location being selected such that the protection device is configured to engage an occupant'"'"'s head and configured to move the occupant'"'"'s head laterally away from the side structure to allow said protection device to inflate between the side structure of the vehicle and the occupant'"'"'s head.

24. Apparatus for helping to protect an occupant of a vehicle that has a side structure and a roof, said apparatus comprising:

an inflatable vehicle occupant protection device having a centerline and being inflatable to deploy away from the vehicle roof;

an inflation fluid source for providing inflation fluid for inflating said protection device; and

a deflector for directing said protection device to deploy outboard of the centerline and toward a target location on the vehicle side structure, said target location being selected such that the protection device is configured to engage an occupant'"'"'s head and configured to move the occupant'"'"'s head laterally away from the side structure to allow said protection device to inflate between the side structure of the vehicle and the occupant'"'"'s head, wherein said deflector comprises reinforcing portions constructed and arranged to control deflection of said deflector under deployment forces exerted by said protection device to help prevent said deflector from deflecting beyond a position at which said deflector directs said protection device to deploy toward said target location.

25. The apparatus recited in claim 24, wherein said deployment forces have a magnitude of 200 or more pounds force.