Vehicle occupant protection apparatus with pocket and method of making same

• US 7,607,683 B2
• Filed: 05/11/2006
• Issued: 10/27/2009
• Est. Priority Date: 05/11/2006
• 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: Fischer, Kurt F., Rodriguez, Alberto, Sharma, Amit, Kramer, Heather R., Eckelberg, Eric J.
• Primary Examiner(s): Dickson; Paul N
• Assistant Examiner(s): BROWN, DREW J
• Application Number:
  US11/432,062
• Publication Number:
  US 20070262572A1
• Time in Patent Office: 1,265 Days
• Field of Search: 280/730.1, 280/743.1, 280/731, 280/732, 280/743.2
• US Class Current: 280/730.1
• CPC Class Codes: B60R 2021/23382 Internal tether means
• CPC Class Codes: B60R 2021/23533 characterised by the manufacturing process
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration
• CPC Class Codes: B60R 21/2338 Tethers

Abstract

An apparatus for helping to protect an occupant (15 or 16) of a vehicle (17) includes an inflatable vehicle occupant protection device (10) and an inflation fluid source. The inflatable vehicle occupant protection device (10) has a stored, deflated position and an inflated position. The inflation fluid source provides inflation fluid to inflate the inflatable vehicle occupant protection device (10). The inflatable vehicle occupant protection device (10) has a first panel portion (501) for, when the inflatable vehicle occupant protection device (10) is inflated, protecting an adult size vehicle occupant (15). The inflatable vehicle occupant protection device (10) has a second panel portion (502) for, when the inflatable vehicle occupant protection device (10) is inflated, defining a downwardly open pocket (520) for receiving a portion of a child size vehicle occupant (16).

Claims

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

an inflatable vehicle occupant protection device having a stored, deflated position and an inflated position; and

an inflation fluid source for providing inflation fluid to inflate said inflatable vehicle occupant protection device, said inflatable vehicle occupant protection device comprising;

an elongated first panel having opposite end portions positioned overlying each other and interconnected to place said first panel in a continuous loop, said first panel including an elongated opening having a periphery, a length, and a width shorter than said length; and

a second panel having a periphery interconnected with said periphery of said opening in said first panel, said second panel having a length and a width shorter than said length, wherein said second panel is sewn to said first panel such that said length of said second panel extends along said width of said opening of said first panel and said width of said second panel extends along said length of said opening of said first panel to define a downwardly open pocket for receiving a portion of a child size vehicle occupant when said inflatable vehicle occupant protection device is in said inflated position.

2. The apparatus as set forth in claim 1 wherein said second panel portion includes two surfaces, each of said surfaces defining a side of said downwardly open pocket.

3. The apparatus as set forth in claim 2 wherein said surfaces stabilize a child seat while avoiding engagement with the child size vehicle occupant.

4. The apparatus as set forth in claim 1 wherein said downwardly open pocket extends forward from a rear portion of said inflatable vehicle occupant protection device toward a front portion of said inflatable vehicle occupant protection device to form a channel for receiving the head of the child size vehicle occupant.

5. The apparatus as set forth in claim 1 wherein said inflatable vehicle occupant protection device further includes a tether for controlling the width of said downwardly open pocket when said inflatable vehicle occupant protection device is inflated.

6. The apparatus as set forth in claim 1 further including an internal tether for maintaining the shape of said downwardly open pocket and ensuring that said downwardly open pocket stabilizes a child seat.

7. The apparatus as set forth in claim 1 further including a flap of material for lying across the head of the child size vehicle occupant to protect the head of the child size vehicle occupant during a vehicle collision.

8. The apparatus as set forth in claim 1 wherein said inflatable vehicle occupant protection device further includes a flap extending downward into said downwardly open pocket when said inflatable vehicle occupant protection device is inflated.

9. The apparatus as set forth in claim 1 wherein said inflatable vehicle occupant protection device further includes pleats disposed within said downwardly open pocket for allowing an upper portion of said downwardly open pocket to expand to a uniform width throughout a height of said downwardly open pocket when said inflatable vehicle occupant protection device is inflated.

11. The apparatus as set forth in claim 1 wherein said inflatable vehicle occupant protection device further comprises a first side panel adjacent an outboard side of said inflatable vehicle occupant protection device and a second side panel adjacent an inboard side of said inflatable vehicle occupant protection device.

12. The apparatus as set forth in claim 1 wherein said periphery of said second panel is sized to overlap the periphery of the opening in the first panel, the overlap being sufficient to facilitate an interconnection of said first and second panels.

13. The apparatus as set forth in claim 1 wherein said opening comprises an elongated rectangular opening having opposite longitudinal side edges extending parallel to the length of said opening, and said second panel comprises an elongated panel with rounded end portions and linear side edges extending between said end portions, said side edges extending parallel to the length of said second panel, a center point of each rounded end portion being interconnected with the first panel at respective midpoints along the longitudinal side edges of the opening.

14. The apparatus as set forth in claim 13 wherein center points of the opposite side edges of said second panel are interconnected with the periphery of said opening at respective midpoints along the side edges of said opening.

10. A method for making an inflatable vehicle occupant protection device of a vehicle, said method comprising the steps of:

removing an elongated portion of material from a first panel to define an elongated opening having a length, a width shorter than the length, and a perimeter;

folding the first panel so that opposite ends of the first panel overlap;

attaching a second panel to the first panel along a first edge to form a first side portion;

attaching a third panel to the first panel along a second edge to form a second side portion; and

attaching a fourth panel having a length and a width shorter than the length to the first panel along the perimeter of the opening, the length of the fourth panel extending along the width of the opening and the width of the fourth panel extending along the length of the opening such that, when the inflatable vehicle occupant protection device is inflated, a downwardly open pocket is formed for helping to protect a child in the vehicle.

15. An inflatable vehicle occupant protection device comprising:

an elongated center panel having opposite end portions and longitudinally extending first and second edge portions extending between said opposite end portions, said opposite end portions being positioned overlying each other and interconnected to place said center panel in a continuous loop, said first panel including an elongated opening having a length and a width substantially smaller than said length;

a first side panel having a periphery interconnected with said first edge portions of said center panel;

a second side panel having a periphery interconnected with said second edge portion of said center panel; and

an elongated bottom panel having a length and a width substantially smaller than said length, a periphery of said bottom panel interconnected with said center panel along said periphery of said opening, said bottom panel having a transverse orientation relative to said center panel such that said length of said bottom panel is centered along said width of said opening and said width of said bottom panel is centered on said length of said opening, said transverse orientation causing said bottom panel and said center panel to define a downwardly open pocket for receiving a portion of a child size vehicle occupant when said inflatable vehicle occupant protection device is inflated.