Inflatable airbag bolster panel retention apparatus

• US 6,688,643 B2
• Filed: 03/06/2001
• Issued: 02/10/2004
• Est. Priority Date: 03/06/2001
• Status: Expired due to Fees

• Current Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Original Assignee: Autoliv ASP Incorporated (Autoliv Incorporated)
• Inventors: Schneider, David W.
• Primary Examiner(s): Dickson, Paul N.
• Assistant Examiner(s): DRAPER, DEANN L
• Application Number:
  US09/800,363
• Publication Number:
  US 20020125708A1
• Time in Patent Office: 1,071 Days
• Field of Search: 280/751, 280/753, 280/730.1, 280/728.1, 280/728.3
• US Class Current: 280/753
• CPC Class Codes: B60R 2021/0051 Knees
• CPC Class Codes: B60R 2021/21525 the lid being fixed on the bag, or forming part of the bag wall, or the bag itself being used as wall liner
• CPC Class Codes: B60R 2021/23169 specially adapted for knee protection
• CPC Class Codes: B60R 21/04 Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
• CPC Class Codes: B60R 21/206 in the lower part of dashboards, e.g. for protecting the knees
• CPC Class Codes: B60R 21/215 characterised by the covers for the inflatable member B60R21/2176 takes precedence

Abstract

A load distribution panel retention apparatus which effectively secures a knee bolster airbag to a load distribution panel. The apparatus includes a flat, rectangular piece of textile material attached to a knee bolster airbag to form a panel retainer which is open on both ends. A load distribution panel, also called a knee bolster panel, is secured to the airbag by positioning the load distribution panel between the panel retainer and the airbag. The apparatus includes a housing secured to the instrument panel or to a firewall of a vehicle. The conventional inflatable knee airbag is stored within the housing and in communication with an inflator. The inflator is stored within the housing and inflates the knee airbag in an accident situation. A trim cover panel is attached to the load distribution panel to provide a decorative covering of the airbag module.

Claims

1. An airbag system comprising:

an airbag; and

a panel retainer attached to said airbag, wherein at least a portion of said panel retainer extends forward of a rigid load distribution member to couple said rigid load distribution member to said airbag such that said rigid load distribution member moves toward a user in response to inflation of the airbag.

2. An airbag system as defined in claim 1, wherein said panel retainer is a pocket.

3. An airbag system as defined in claim 1, wherein said panel retainer is a strap.

4. An airbag system as defined in claim 1, wherein said rigid load distribution member is a rod.

5. An airbag system as defined in claim 1, wherein said rigid load distribution member is a plate.

6. An airbag system as defined in claim 1, wherein said rigid load distribution member is a panel.

7. An airbag system as defined in claim 1, wherein said panel retainer is two or more straps.

8. A knee bolster airbag system comprising:

an airbag; and

a panel retainer connected to the airbag, wherein the panel retainer is shaped to receive and secure a rigid load distribution panel;

wherein the rigid load distribution panel is disposed between said airbag and said panel retainer.

9. A knee bolster airbag system as defined in claim 8, wherein said panel retainer is a strap.

10. A knee bolster airbag system as defined in claim 9, wherein said strap is secured on three sides to said knee bolster airbag to form a pocket.

11. A knee bolster airbag system as defined in claim 10, wherein said strap is configured to allow placement of said load distribution panel between the knee bolster airbag and the strap.

12. A knee bolster airbag system as defined in claim 11, further comprising one or more holes in said strap, which holes provide passage for fasteners, which fasteners are capable of securing the load distribution panel to a decorative trim cover panel.

13. A knee bolster airbag system as defined in claim 8, wherein said panel retainer forms a sleeve.

14. A knee bolster airbag module comprising:

a housing which housing is formed with a space configured to receive an inflator;

an inflator secured to said housing, said inflator configured to discharge gas into an airbag;

an airbag attached to said inflator such that gas escaping said inflator enters said airbag inflating said airbag;

a load distribution panel; and

a panel retainer secured to said airbag, wherein at least a portion of said panel retainer extends forward of said rigid load distribution member to receive and securely hold said load distribution panel.

15. A knee bolster airbag module as defined in claim 14, wherein said panel retainer is attached to said airbag at both ends.

16. A knee bolster airbag module as defined in claim 14, wherein said load distribution panel is generally planar.

17. A knee bolster airbag module as defined in claim 14, wherein said panel retainer is rectangular.

18. A knee bolster airbag module as defined in claim 14, wherein one or more holes are disposed in said panel retainer, which holes provide passage for fasteners, which fasteners secure the load distribution panel to a decorative trim cover panel.

19. A knee bolster airbag module as defined in claim 14, further comprising a second panel retainer said second panel retainer attached to said airbag and configured to cooperate with said panel retainer in securing said load distribution panel.

20. A method for securing a load distribution panel to an airbag, comprising the steps of:

a) providing an airbag and a panel retainer for receiving and securing a rigid load distribution panel between said airbag and said panel retainer;

b) securing a load distribution panel to the airbag by way of the panel retainer; and

c) positioning the load distribution panel such that one or more fasteners disposed in the load distribution panel are capable of attaching to a trim cover panel. and attaching the trim cover panel to the load distribution panel by way of the fasteners disposed in the load distribution panel.

21. The method of claim 20, wherein the fasteners are part of the trim cover panel and the load distribution panel comprises fastener receiving members.

22. The method of claim 20, wherein the fasteners are tree clips, snaps, or rivets.