Collapsable inflatable curtain module

• US 7,625,005 B2
• Filed: 08/30/2005
• Issued: 12/01/2009
• Est. Priority Date: 08/30/2005
• Status: Active Grant

• 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: Sutherland, Daniel R., Popek, Joseph C., Saberan, Al A., Bakhsh, Ali Emam, White, Michael J. Jr., Bowers, Paul A.
• Primary Examiner(s): Dickson; Paul N
• Assistant Examiner(s): Coker; Robert A
• Application Number:
  US11/214,653
• Publication Number:
  US 20070045999A1
• Time in Patent Office: 1,554 Days
• Field of Search: 280/730.2, 280/740, 280/741, 280/742, 280/730.1, 285/23, 285/133.11, 285/179, 285/223
• US Class Current: 280/730.2
• 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 21/26 characterised by the inflation fluid source or means to control inflation fluid flow arrangement or mounting thereof to the vehicle B60R21/20; blasting cartridges for producing gas under pressure in general F42B3/04; initiators or igniters therefor F42B3/10

Abstract

An apparatus (10) for helping to protect an occupant of a vehicle (12) includes at least one inflatable vehicle occupant protection device (14) including a first portion (50) inflatable to cover a first portion (20) of a vehicle and a second portion (52) inflatable to cover a second portion (30) of a vehicle. A single inflator (70) provides inflation fluid to inflate the protection device (14). A first conduit (52) has a portion terminating in the first portion (50) of the protection device (14). A second conduit (62) has a portion terminating in the second portion (60) of the protection device (14). The first and second conduits (52 and 62) are adapted to move relative to each other from a first condition in which the conduits are positioned for installation in the vehicle (12) to a second condition in which the conduits are positioned next to each other.

Claims

1. An apparatus for helping to protect an occupant of a vehicle, said apparatus comprising:

at least one inflatable vehicle occupant protection device having a first portion inflatable to cover a first portion of a vehicle side structure and a second portion inflatable to cover a second portion of a vehicle side structure;

a single inflator for providing inflation fluid to inflate said at least one inflatable vehicle occupant protection device;

a first conduit having a portion terminating in said first portion of said inflatable vehicle occupant protection device;

a second conduit having a portion terminating in said second portion of said inflatable vehicle occupant protection device; and

at least one fitting having portions that move relative to each other to permit said first and second conduits to move relative to each other from a first condition in which said first and second conduits are positioned for installation in the vehicle to a second condition in which said first and second conduits are positioned next to each other;

wherein said first conduit enters a rear portion of said first portion of said inflatable vehicle occupant protection device and terminates in said rear portion of said first portion of said inflatable vehicle occupant protection device; and

said second conduit enters a rear portion of said second portion of said inflatable vehicle occupant protection device and terminates in said rear portion of said second portion of said inflatable vehicle occupant protection device.

2. The apparatus recited in claim 1, wherein said first portion is inflatable to cover a portion of a vehicle side structure on a driver side of the vehicle and said second portion is inflatable to cover a portion of a vehicle side structure on a passenger side of the vehicle.

3. The apparatus recited in claim 1, wherein said first portion comprises a driver side inflatable curtain that is inflatable to cover a portion of a vehicle side structure on a driver side of the vehicle and said second portion comprises a passenger side inflatable curtain that is inflatable to cover a portion of a vehicle side structure on a passenger side of the vehicle.

4. The apparatus recited in claim 1, wherein said at least one inflatable vehicle occupant protection device comprises:

a driver side inflatable curtain comprising said first portion, said driver side inflatable curtain being inflatable to cover a portion of a vehicle side structure on a driver side of the vehicle; and

a passenger side inflatable curtain comprising said second portion, said passenger side inflatable curtain being inflatable to cover a portion of a vehicle side structure on a passenger side of the vehicle.

5. The apparatus recited in claim 1, wherein said at least one inflatable vehicle occupant protection device comprises a single inflatable curtain in which:

said first portion comprises a driver side portion inflatable to cover a portion of a vehicle side structure on a driver side of the vehicle; and

said second portion comprises a passenger side portion inflatable to cover a portion of a vehicle side structure on a passenger side of the vehicle;

said inflatable curtain further comprising a third portion inflatable to cover a rear structure of the vehicle.

6. The apparatus recited in claim 1, further comprising means for providing fluid communication between said first and second conduits and said inflator.

7. The apparatus recited in claim 6, wherein said means for providing fluid communication comprises a fitting having portions movable relative to each other to permit said first conduit to move relative to said second conduit.

8. The apparatus recited in claim 6, wherein said means for providing fluid communication comprises a flexible joint for permitting said first conduit to move relative to said second conduit.

9. The apparatus recited in claim 8, wherein said flexible joint comprises a hose.

10. The apparatus recited in claim 1, further comprising:

a first housing for storing said first portion of said inflatable vehicle occupant protection device and at least a portion of said first conduit; and

a second housing for storing said second portion of said inflatable vehicle occupant protection device and at least a portion of said second conduit;

said first and second housings moving relative to each other upon movement of said first and second conduits between said first and second conditions.

11. The apparatus recited in claim 1, wherein said first and second conduits when in said second condition have a nested configuration.

12. The apparatus recited in claim 1, wherein at least one of said first and second conduits pivots at least 75 degrees relative to the other of said first and second conduits while moving between said first condition and said second condition.

13. The apparatus recited in claim 1, wherein said first an second conduits comprise rigid tubes substantial portions of which are positioned in said inflatable vehicle occupant protection device, said apparatus further comprising at least one flexible conduit that provides fluid communication between said first conduit and said inflator and between said second conduit and said inflator, said at least one flexible conduit permitting movement of said first and second conduits relative to each other from said first condition to said second condition.

14. The apparatus recited in claim 1, having a portion integrated with a vehicle headliner.

15. The apparatus recited in claim 14, wherein said integrated portion comprises a housing for storing at least a portion of said inflatable vehicle occupant protection device.

16. The apparatus recited in claim 14, wherein said integrated portion comprises a portion of at least one of said first and second conduits.

17. The apparatus recited in claim 1, wherein said first portion is inflatable to cover a portion of a vehicle side structure on a driver side of the vehicle adjacent first and second row seating of the vehicle and said second portion is inflatable to cover a portion of a vehicle side structure on a passenger side of the vehicle adjacent first and second row seating of the vehicle.

18. An apparatus for helping to protect an occupant of a vehicle, said apparatus comprising:

a first conduit for delivering inflation fluid to a driver side inflatable vehicle occupant protection device;

a second conduit for delivering inflation fluid to a passenger side inflatable vehicle occupant protection device; and

means for providing fluid communication between said first and second conduits and an inflation fluid source;

said first and second conduits and said means for providing fluid communication being interconnected to form an assemblage, said first and second conduits while in said assemblage being movable relative to each other to place said assemblage in an installation condition in which said first and second conduits are positioned for installation in the vehicle;

said first and second conduits being movable relative to each other to place said assemblage in a second condition in which said first and second conduits are positioned next to each other.

19. The apparatus recited in claim 18, wherein at least a portion of said first conduit is positioned for installation along a side structure on the driver side of the vehicle and said second conduit simultaneously has at least a portion positioned for installation along a side structure on the passenger side of the vehicle when said assemblage is in said installation condition.

20. The apparatus recited in claim 18, wherein said driver side inflatable vehicle occupant protection device and said passenger side inflatable vehicle occupant protection device are inflatable to help protect occupants of first and second row seating of the vehicle.

21. An apparatus for helping to protect an occupant of a vehicle, said apparatus comprising:

a driver side protection module;

a passenger side protection module;

a single inflator; and

an inflation fluid distribution assembly for directing inflation fluid from said single inflator to said driver side protection module and passenger side protection module;

said driver side protection module, said passenger side protection module, said single inflator, and said inflation fluid distribution assembly being interconnected to form an assemblage in which said driver side protection module and said passenger side protection module are movable relative to each other, said assemblage having an installation condition in which said driver side protection module is positioned for installation along the driver side of the vehicle and said passenger side protection module is positioned for installation along the passenger side of the vehicle, said assemblage having a second condition in which said driver side protection module and said passenger side protection module are positioned next to each other.

22. The apparatus recited in claim 21, wherein:

said driver side protection module comprises a driver side inflatable vehicle occupant protection device and a driver side conduit for delivering inflation fluid to said driver side inflatable vehicle occupant protection device; and

said passenger side protection module comprises a passenger side inflatable vehicle occupant protection device and a passenger side conduit for delivering inflation fluid to said passenger side inflatable vehicle occupant protection device.

23. An apparatus for helping to protect an occupant of a vehicle, said apparatus comprising:

a single inflatable curtain comprising;

a first portion inflatable to cover a portion of a vehicle side structure on a driver side of the vehicle,

a second portion inflatable to cover a portion of a vehicle side structure on a passenger side of the vehicle; and

a third portion inflatable to cover a rear structure of the vehicle;

a single inflator for providing inflation fluid to inflate said inflatable curtain;

a first conduit having a portion terminating in said first portion of said inflatable vehicle occupant protection device;

a second conduit having a portion terminating in said second portion of said inflatable vehicle occupant protection device; and

at least one fitting that permits said first and second conduits to move relative to each other from a first condition in which said first and second conduits are positioned for installation in the vehicle to a second condition in which said first and second conduits are positioned next to each other.

24. An apparatus for helping to protect an occupant of a vehicle, said apparatus comprising:

a driver side inflatable vehicle occupant protection device inflatable to cover a portion of a driver side vehicle side structure;

a passenger side inflatable vehicle occupant protection device inflatable to cover a portion of a passenger side vehicle side structure;

an inflation fluid source for providing inflation fluid to inflate the driver side protection device and the passenger side protection device; and

a rigid conduit for delivering the inflation fluid to the driver side protection device and to the passenger side protection device, the conduit comprising a distribution portion that extends from adjacent the side structure on the driver side of the vehicle to adjacent the side structure on the passenger side of the vehicle, the conduit comprising a first terminal end portion that extends transverse to the distribution portion along the side structure on the driver side of the vehicle and delivers inflation fluid into the driver side protection device, the conduit comprising a second terminal end portion that extends transverse to the distribution portion along the side structure on the passenger side of the vehicle and delivers inflation fluid into the passenger side protection device, the first and second terminal end portions having shortened lengths extending only partially into the driver side and passenger side protection devices so that the protection devices can be folded to positions extending adjacent to each other.