Vehicle safety seat with fluid manifold

• US 6,425,602 B1
• Filed: 03/16/2000
• Issued: 07/30/2002
• Est. Priority Date: 03/16/2000
• Status: Expired due to Fees

• Current Assignee: TRW Limited (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: TRW Limited (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Brown, Kevin M., Erike, Eric C., Shirk, Bryan W., Swann, Timothy A., Mramor, Vincent J., Cuevas, Jess A., Van Wynsberghe, Roy D., Al-Amin, Ahmad K.
• Primary Examiner(s): Rice, Kenneth R.
• Assistant Examiner(s): BUCHANAN, CHRISTOPHER R
• Application Number:
  US09/526,393
• Time in Patent Office: 866 Days
• Field of Search: 280/730.1, 280/735, 280/730.2, 280/806
• US Class Current: 280/730.2
• CPC Class Codes: B60N 2/68 Seat frames
• CPC Class Codes: B60R 2021/0006 Lateral collision
• CPC Class Codes: B60R 2021/0011 Rear collision or recoiling bounce after frontal collision
• CPC Class Codes: B60R 2021/0048 Head
• CPC Class Codes: B60R 2021/26094 characterised by fluid flow controlling valves
• CPC Class Codes: B60R 2021/2615 for diverting the gas into a plurality of bags
• CPC Class Codes: B60R 21/207 in vehicle seats
• CPC Class Codes: B60R 22/1951 characterised by arrangements in vehicle or relative to seat belt
• CPC Class Codes: B60R 22/1955 Linear actuators
• CPC Class Codes: B60R 22/26 secured to the seat

Abstract

An apparatus includes a vehicle seat (10) having a tubular seat frame (60) defining a fluid manifold (66). The apparatus also includes at least two deployable vehicle occupant protection devices (120, 130, 140, 142) for helping to protect a vehicle seat occupant from injury in the event of a vehicle collision. The protection devices (120, 130, 140, 142) are spaced apart from each other. The protection devices (120, 130, 140, 142) are in fluid communication with the fluid manifold (66) and are deployable by fluid directed into the protection devices from the fluid manifold. A single actuatable device (150) provides pressurized fluid for deploying one or more of the protection devices (120, 130, 140, 142). The actuatable device (150) is in fluid communication with the fluid manifold (66).

Claims

1. An apparatus comprising:

a vehicle seat having a tubular seat frame defining a fluid manifold;

at least two deployable vehicle occupant protection devices for helping to protect a vehicle seat occupant from injury in the event of a vehicle collision, said at least two protection devices being spaced apart from each other, said at least two protection devices being in fluid communication with said fluid manifold defined by said tubular seat frame and being deployable by fluid directed into said at least two protection devices from said fluid manifold defined by said tubular seat frame; and

a single actuatable device for providing pressurized fluid for deploying one or more of said at least two protection devices, said actuatable device being in fluid communication with said fluid manifold defined by said tubular seat frame, said actuatable device further being disposed at a location spaced apart from said at least two deployable vehicle occupant protection devices,

each one of said at least two deployable occupant protection devices being associated with a respective diffuser portion of said fluid manifold defined by said tubular seat frame, said diffuser portions being spaced apart from each other along said tubular seat frame,

said fluid manifold defined by said tubular seat frame comprising a fluid conduit for directing the pressurized fluid from said actuatable device to said at least two deployable vehicle occupant protection devices, said fluid manifold defined by said tubular seat frame further comprising a valve disposed in said fluid conduit for blocking flow of said pressurized fluid to one of said at least two deployable occupant protection devices to prevent deployment of said one of said at least two deployable occupant protection devices when said actuatable device is actuated.

2. The apparatus of claim 1 further comprising another valve disposed within said fluid manifold defined by said tubular seat frame for selectively permitting the flow of fluid from said actuatable device to another of said at least two protection devices.

3. The apparatus of claim 2 further comprising a controller and at least one collision sensor electrically connected with said controller to provide an electrical signal indicative of a vehicle collision to said controller, said controller being operatively coupled with said actuatable device and with said valves.

4. The apparatus of claim 2 wherein said fluid manifold defining a tubular seat frame includes at least one vent opening for venting a portion of the pressurized fluid from said actuatable device when one of said valves blocks the flow of fluid to one or more of said at least two protection devices.

5. The apparatus of claim 1 wherein said at least two protection devices include a seat belt webbing pretensioner located adjacent said vehicle seat.

6. The apparatus of claim 1 wherein said at least two protection devices include a side impact air bag mounted in said vehicle seat.

7. The apparatus of claim 1 wherein said at least two protection devices include at least one whiplash protection air bag mounted in said vehicle seat.

8. The apparatus of claim 7 wherein said at least two protection devices include a pair of whiplash protection air bags mounted in said vehicle seat.

9. The apparatus of claim 7 wherein said valve is disposed within said fluid manifold defined by said tubular seat frame for selectively permitting the flow of fluid from said actuatable device to said at least one whiplash protection air bag.

10. The apparatus of claim 9 wherein said at least two protection devices include a side impact air bag mounted in said vehicle seat.

11. The apparatus of claim 10 further comprising another valve disposed within said fluid manifold defined by said tubular seat frame for selectively permitting the flow of fluid from said actuatable device to said side impact air bag.

12. The apparatus of claim 11 wherein said at least two protection devices include a seat belt webbing pretensioner located adjacent said vehicle seat.

13. The apparatus of claim 12 wherein said fluid manifold includes at least one vent opening for venting a portion of the pressurized fluid from said actuatable device.

14. The apparatus of claim 13 further comprising a third valve disposed within said fluid manifold defined by said tubular seat frame for selectively permitting the flow of fluid from said actuatable device to said at least one vent opening when one or both of said other valves block the flow of fluid in said fluid manifold defined by said tubular seat frame.

15. The apparatus of claim 1 wherein said single actuatable device comprises a stored gas inflator for providing gas under pressure.

16. An apparatus comprising:

a vehicle seat having a seat cushion, a seat back, and a tubular seat frame;

said seat frame defining a fluid manifold and including at least one L-shaped manifold member, said manifold member being located within said seat cushion and said seat back of said vehicle seat, said L-shaped manifold member having a first branch extending along said seat cushion, a second branch extending along said seat back, and a connecting member in fluid communication with both said first and second branches;

at least one deployable vehicle occupant protection device for helping to protect a vehicle seat occupant from injury in the event of a vehicle collision, one of said at least one protection device being in fluid communication with said first branch and being deployable by fluid directed into said connecting member; and

an actuatable device for providing pressurized fluid for deploying said at least one protection device, said actuatable device being spaced from said at least one protection device and being in fluid communication with said connecting member,

said actuatable device further being disposed at a location spaced apart from said at least two deployable vehicle occupant protection devices,

said fluid manifold defined by said tubular seat frame comprising a fluid conduit for directing the pressurized fluid from said actuatable device, through said connecting member, to said at least two deployable vehicle occupant protection devices, said fluid manifold defined by said tubular seat frame further comprising a valve disposed in said fluid conduit for blocking flow of said pressurized fluid to one of said at least two deployable occupant protection devices to prevent deployment of said one of said at least two deployable occupant protection devices when said actuatable device is actuated.

17. The apparatus of claim 16 wherein said seat frame includes first and second L-shaped manifold members and said connecting member extends between said first and second L-shaped manifold members to provide fluid communication between said first and second L-shaped manifold members.

18. The apparatus of claim 17 wherein said actuatable device is attached to said connecting member to provide fluid into said connecting member.

19. The apparatus of claim 18 wherein said at least one protection device comprises at least one whiplash protection air bag mounted in said seat back.

20. The apparatus of claim 19 wherein said valve is disposed within said first L-shaped manifold member for selectively permitting the flow of fluid from said actuatable device to said at least one whiplash protection air bag.

21. The apparatus of claim 20 wherein said at least one protection device includes a side impact air bag mounted in said seat back.

22. The apparatus of claim 21 further comprising another valve disposed within said second L-shaped manifold member for selectively permitting the flow of fluid from said actuatable device to said side impact air bag.

23. The apparatus of claim 22 wherein said at least one protection device further includes a seat belt webbing pretensioner located adjacent said seat cushion.

24. The apparatus of claim 23 wherein said seat frame includes at least one vent opening for venting a portion of the pressurized fluid from said actuatable device.

25. The apparatus of claim 24 further comprising a third valve disposed within said seat frame for selectively permitting the flow of fluid from said actuatable device to said at least one vent opening when one or both of said other valves block the flow of fluid in said seat frame.

26. The apparatus of claim 16 wherein said single actuatable device comprises a stored gas inflator for providing gas under pressure.

27. The apparatus of claim 16 wherein said valve is disposed within said seat frame for selectively permitting the flow of fluid from said actuatable device to said at least one protection device.

28. The apparatus of claim 27 further comprising a controller and at least one collision sensor electrically connected with said controller to provide an electrical signal indicative of a vehicle collision to said controller, said controller being operatively coupled with said actuatable device and with said valve.

29. The apparatus of claim 16 wherein said at least one protection device comprises a seat belt webbing pretensioner located adjacent said seat cushion.

30. The apparatus of claim 16 wherein said at least one protection device comprises a side impact air bag mounted in said seat back.

31. The apparatus of claim 16 wherein said at least one protection device comprises at least one whiplash protection air bag mounted in said seat back.