Inflatable side air bag curtain module

• US 6,412,810 B1
• Filed: 11/04/1999
• Issued: 07/02/2002
• Est. Priority Date: 11/04/1999
• Status: Expired due to Term

• Current Assignee: Key Safety Systems, Inc. (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Breed Automotive Technology, Inc. (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Wong, Samuel, Bailey, Brian J., Tobian, Robert, Wipasuramonton, Pongdet P.
• Primary Examiner(s): Johnson, Brian L.
• Assistant Examiner(s): DRAPER, DEANN L
• Application Number:
  US09/428,963
• Time in Patent Office: 971 Days
• Field of Search: 280/730.2, 280/730.1, 280/728.2
• US Class Current: 280/730.2
• CPC Class Codes: B60R 2021/161 characterised by additional means for controlling deployment trajectory
• CPC Class Codes: B60R 2021/23316 Inner seams, e.g. creating separate compartments or used as tethering means
• CPC Class Codes: B60R 2021/23386 External tether means
• CPC Class Codes: B60R 2021/2615 for diverting the gas into a plurality of bags
• CPC Class Codes: B60R 2021/2617 Curtain bag nozzles
• CPC Class Codes: B60R 21/213 in vehicle roof frames or pillars
• CPC Class Codes: B60R 21/215 characterised by the covers for the inflatable member B60R21/2176 takes precedence
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge
• CPC Class Codes: B60R 21/2338 Tethers
• CPC Class Codes: B60R 21/261 with means other than bag structure to diffuse or guide inflation fluid

Abstract

An air bag comprising at least one inflatable portion; a connecting portion located above the inflatable portion; a mounting rod connected to the connecting portion, the mounting rod adapted to be connected to a cooperating part of a vehicle. In another embodiment of the invention, the air bag includes a plurality of inflatable portions and a center uninflatable portion. The various inflatable portions are interconnected by a manifold or central passage.

Claims

1. An air bag assembly (20) comprising:

an air bag (22) having at least one inflatable portion (40); and

a tubular connecting portion (48, 340) located above the inflatable portion and formed by material of the air bag;

a mounting rod (170), received through the connecting portion to support the air bag, the mounting rod including opposing ends, each end including an end connector adapted to be connected to a cooperating part of a vehicle, the connectors providing the primary support for the mounting rod and air bag.

2. The assembly as defined in claim 1 wherein each end connector includes connector means for quickly and easily mounting the rod to the vehicle.

3. The assembly bag as defined in claim 2 wherein the connector means includes a first connector on one of the respective ends of the rod or the vehicle, and a mating second connector on the other of the ends of the rod or the vehicle.

4. The assembly as defined in claim 3 wherein the first connector includes a pin (192, 192a ) and plate (190) and wherein the second connector includes a keyhole opening (194) comprising an interconnected small diameter opening and a large diameter opening.

5. The assembly as defined in claim 3 including lock means (197, 300) for prohibiting the first and second connectors from disconnecting.

6. The assembly as defined in claim 1 wherein the air bag (22) further includes an inlet (44) and a distribution tube (26), received within the inlet, for distributing inflation gas from a source of inflation (24), to the inflatable portion, wherein the inlet and distribution tube are generally located adjacent a top of the inflatable portion.

7. The assembly as defined in claim 6 further including a source of inflation gas communicated to one end of the distribution tube (26) proximate the inlet of the air bag.

8. The assembly as defined in claim 6 wherein the source of inflation is an air bag inflator (24) having at least one exit port (122) arranged in the inflator to distribute inflation gas axially into an inlet end of the tube.

9. The assembly as defined in claim 1 wherein the center section of the mounting rod (170) is shaped to conform to an adjacent portion of the vehicle.

10. An air bag assembly (20) comprising:

an air bag (22) having at least one inflatable portion (40);

a connecting portion (48, 340) located above the inflatable portion;

a mounting rod (170) supporting the air bag via the connecting portion, the mounting rod including opposing ends adapted to be connected to a cooperating part of a vehicle;

wherein the air bag (22) includes;

a plurality of inflatable cushion portions (40a, 40b, 40c) adapted to be stored at a location at or near a roof rail of a vehicle and when inflated lies generally against a side of the vehicle to protect an occupant of the vehicle, the air bag having a top and bottom, an interior side and an exterior side, and a first and a second end, the air bag being wide enough to extend from about the location of a first pillar of the vehicle to about a second pillar of the vehicle; and

a first inflatable portion located proximate the first end and a second inflatable portion located proximate the second end, an uninflatable portion situated between the first and second inflatable portions and a third inflatable portion situated below the uninflatable portion;

wherein the third portion includes a common manifold in communication with the first and second inflatable portions, the manifold situated below the uninflatable portion, the third portion further including a plurality of cells, each cell having at least a partially open top in communication with the manifold and an enclosed bottom.

11. An air bag assembly (20) comprising:

an air bag (22) having at least one inflatable portion (40) and an inlet (44) for distributing inflation gas from a source of inflation (24) to the inflatable portion, wherein the inlet is generally located adjacent a top of the inflatable portion;

wherein the source of inflation is an air bag inflator (24) having at least one exit port (122) arranged to permit inflation gas to leave the inflator in a non-axial direction and further including a diverter (150), having at least one axially arranged exit port (158), secured about the inflator exit port and connected to the inlet to change the direction of flow of the inflation gas from non-axial to axial prior to entering the air bag.

12. The assembly as defined in claim 11 wherein a remote end of the air bag is slidable relative to a support member.

13. The assembly as defined in claim 11 wherein the support member is one of a mounting bar and mounting strap.

14. An air bag assembly (20) comprising:

a curtain air bag (22) having at least one inflatable portion (40);

a self-supporting curtain rod (170) having opposing ends, for supporting the air bag;

mounting means, located at each opposing end, for mounting the curtain rod, at the ends thereof, to a cooperating structure;

wherein the curtain rod is received within a cooperating portion of the airbag.

15. The assembly as defined in claim 14 wherein the mounting means includes a quick-connect, quick-disconnect device comprising an interconnected small diameter opening and a large diameter opening.

16. The assembly as defined in claim 14 wherein the mounting means is adapted to mount to a cooperating portion of a vehicle.

17. The assembly as defined in claim 16 wherein the air bag is sufficiently wide that, when inflated, it extends at least between two pillars of the vehicle.

18. An air bag assembly (22) having a plurality of inflatable cushion portions (40a, 40b, 40c), the air bag adapted to be stored at a location at or near a roof rail of a vehicle and when inflated lies generally against a side of the vehicle to protect an occupant of the vehicle, the air bag having a top and bottom, an interior side and an exterior side, and a first and a second end, the air bag being wide enough to extend from about the location of a first pillar of the vehicle to about a second pillar of the vehicle;

wherein a first inflatable portion is located proximate the first end of the cushion and a second inflatable portion is located proximate the second end, an uninflatable portion is situated between the first and second inflatable portions and a third inflatable portion is situated below the uninflatable portion;

wherein the third portion includes a common manifold in communication with the first and second inflatable portions, the manifold situated below the uninflatable portion, the third portion further including a plurality of cells, each cell having at least a partially open top in communication with the manifold and an enclosed bottom.

19. An air bag assembly (20) comprising:

an air bag (22) having at least one inflatable portion (40); and

a tubular connecting portion (48, 340) located above the inflatable portion and formed by material of the air bag;

a mounting rod (170), received through the connecting portion to support the air bag, the mounting rod including opposing ends, each end including an end connector adapted to be connected to a cooperating part of a vehicle, at least one of the end brackets having a T-shaped configuration, received within a cooperating opening of the vehicle to prevent the rod from twisting.

20. The assembly as defined in claim 19 wherein the T-shaped configuration is formed by a plate secured to a rod end.

21. An air bag assembly (20) comprising:

an air bag (22) having a plurality of inflatable cushion portions (40a, 40b, 40c), the air bag adapted to be stored at a location at or near a roof rail of a vehicle and when inflated lies generally against a side of the vehicle to protect an occupant of the vehicle, the cushion having a top and bottom, an interior side and an exterior side, and a first and a second end, the cushion being wide enough to extend from about the location of a forward first pillar of the vehicle to about a rearward second pillar of the vehicle;

wherein a first inflatable portion is located proximate the first end of the cushion and a second inflatable portion is located proximate the second end, an uninflatable portion is situated between the first and second inflatable portions and wherein the first end is securable via a first tether to the first pillar and wherein the second end includes a second tether slidably mountable to one of a strap and rod.

22. The assembly as defined in claim 21 wherein one end of the second tether is formed as a loop to envelop one of the strap and rod.