Side air bag directional guide system

• US 5,967,546 A
• Filed: 04/04/1997
• Issued: 10/19/1999
• Est. Priority Date: 11/12/1996
• Status: Expired due to Term

• Current Assignee: Magna Lomason Corp. (Magna International Incorporated)
• Original Assignee: Magna Lomason Corp. (Magna International Incorporated)
• Inventors: Homier, Robert I., Holdampf, Carl J.
• Primary Examiner(s): Rice, Kenneth R.
• Application Number:
  US08/833,416
• Time in Patent Office: 928 Days
• Field of Search: 280/730.2, 280/743.1
• US Class Current: 280/730.2
• CPC Class Codes: B60N 2/5883 by sewing, stitching or threading
• CPC Class Codes: B60R 2021/0006 Lateral collision
• CPC Class Codes: B60R 2021/161 characterised by additional means for controlling deployment trajectory
• CPC Class Codes: B60R 21/207 in vehicle seats

Abstract

The side air bag directional guide system is provided for intensifying the forces applied to a seam in a vehicle seat for allowing the air bag to be deployed through an opening in the seam. The air bag directional guide system includes a vehicle seat including a seat back having a seat cover. An air bag unit is mounted inside of the seat cover and a membrane is wrapped around the air bag unit and has first and second ends connected to a seam in the seat cover. Upon deployment of the air bag, the membrane intensifies the forces applied to the seam thereby tearing open the seam to provide an opening through which the air bag is deployed.

Claims

1. An air bag directional guide system, comprising:

a vehicle seat including a frame and a seat back having a seat cover;

a support bracket fixed to said frame;

an air bag unit mounted inside of said seat cover, said air bag unit including an air bag and an inflator;

a membrane at least partially around said air bag and said inflator of said air bag unit, said membrane being made separately from said seat cover, said membrane being made of high strength, low elasticity material, whereby upon actuation, said membrane controls and directs deployment of said air bag to ensure that the air bag is properly deployed through the seam;

said membrane including a first panel having a first end and a second end opposite said first end, and a second panel having a first end and a second end opposite said first end, said first panel first end and said second panel first end connected to a seam in said seat cover, and

said first and second panels having said second ends thereof secured to said support bracket at laterally spaced locations.

2. The air bag directional guide system according to claim 1, wherein said first panel second end forms a sleeve, and said second panel second end forms a sleeve, and wherein said sleeves are fixed to said support bracket by a wire inserted in said sleeves.

3. The air bag directional guide system according to claim 2, wherein said support bracket is provided with at least one side clip on opposite edges thereof, wherein said wire is generally U-shaped including a base portion and two leg portions extending therefrom, wherein said two leg portions are engaged with said side clips for connecting said first and second panels together.

4. The air bag directional guide system according to claim 3, wherein said wire includes a hook portion on each end.

5. The air bag directional guide system according to claim 3, wherein said support bracket further includes a tab portion along another edge thereof for engaging said base portion of said wire.

6. The air bag directional guide system according to claim 3, wherein said air bag unit is mounted to said support bracket.

7. A method of directing a side air bag mounted in a vehicle seat, comprising the steps of:

mounting an air bag unit inside of a seat cover of a seat back;

attaching first and second ends of a membrane to a seam in said seat cover; and

wrapping said membrane around said air bag unit.

8. The method according to claim 7, wherein said step of attaching includes the step of sewing said seam together with said first and second ends of said membrane attached thereto.

9. The method according to claim 7, wherein said membrane includes a first and second panel which are attached to one another at upper and lower ends thereof.