Detachable support system for inflatable air bag cushion

• US 6,481,744 B2
• Filed: 12/15/2000
• Issued: 11/19/2002
• Est. Priority Date: 12/15/2000
• Status: Expired due to Fees

• Current Assignee: Autoliv AB (Autoliv Incorporated)
• Original Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Inventors: Melia, Sharon K
• Primary Examiner(s): Johnson, Brian L.
• Assistant Examiner(s): Campbell, Kelly E
• Application Number:
  US09/738,381
• Publication Number:
  US 20020074778A1
• Time in Patent Office: 704 Days
• Field of Search: 280/728.1, 280/728.2, 280/728.3, 280/730.1, 280/730.2
• US Class Current: 280/730.2
• CPC Class Codes: B60R 21/201 Packaging straps or envelopes for inflatable members
• CPC Class Codes: B60R 21/213 in vehicle roof frames or pillars

Abstract

A support system for a folded inflatable air bag cushion deployable from a stored position over an area of extended length wherein the support system promotes the maintenance of a desired folding pattern along the length of the air bag cushion during the installation process and thereafter until deployment takes place. The support system includes one or more pliable cradle elements extending from a first support surface in cradling relation at least partially around the folded inflatable air bag cushion. The cradle elements are releasably attached to a second support surface such that upon inflation of the air bag cushion the cradle elements are detached from the second support surface and moved out of cradling relation around the inflatable air bag cushion.

Claims

1. A support system for a folded inflatable air bag cushion, the support system extending over an area within tie occupant compartment of a transportation vehicle, the support system comprising:

a pliable cradle element secured in substantially fixed relation to a first support surface, the cradle element including a first segment extending away from the first support surface inboard of the folded inflatable air bag cushion and a second segment extending about 90 degrees or greater away from the first segment in underlying supporting relation to the folded inflatable air bag cushion, the second segment including an attachment surface releasably attached to a second support surface, such that the cradle element defines a supporting sling extending about 180 degrees or greater around the folded inflatable air bag cushion and such that upon inflation of the folded inflatable air bag cushion, the cradle element is detached from the second support surface and moved out of cradling relation around the inflatable air bag cushion.

2. The invention according to claim 1, wherein the pliable cradle element comprises a length of textile fabric.

3. The invention according to claim 2, wherein the textile fabric comprises a seat belt webbing fabric.

4. The invention according to claim 1, wherein the pliable cradle element comprises a length of pliable polymeric film.

5. The invention according to claim 1, wherein the folded inflatable air bag cushion is disposed in folded relation along at least a portion of a structural roof rail extending along the occupant compartment of the vehicle such that upon inflation the inflatable air bag cushion expands downwardly away from the roof rail and over an area substantially adjacent to an occupant within the occupant compartment.

6. The invention according to claim 5, wherein the first support surface comprises a portion of the roof rail.

7. The invention according to claim 5, wherein the second support surface comprises a portion of the roof rail.

8. The invention according to claim 1, wherein the cradle element attachment surface comprises a one half of a hook and loop fabric structure attached to a cooperating half of a hook and loop fabric structure disposed at the second support surface.

9. The invention according to claim 1, wherein the cradle element extends in loop forming fashion substantially entirely around the inflatable air bag cushion.

10. The invention according to claim 9, wherein a portion of the cradle element attachment surface is releasably attached to the surface of the air bag cushion.

11. The invention according to claim 10, wherein the cradle element attachment surface comprises a one half of a hook and loop fabric structure attached to a cooperating half of a hook and loop fabric structure disposed at the surface of the inflatable air bag cushion, whereby the second support surface comprises a surface of the inflatable air bag cushion.

12. A support system for a folded inflatable air bag cushion, the support system extending over an area within the occupant compartment of a transportation vehicle, the support system comprising:

a plurality of pliable cradle elements secured in substantially fixed relation to a first support surface, at least a portion of the cradle elements including a first segment extending away from the first support surface inboard of the folded inflatable air bag cushion and a second segment extending about 90 degrees or greater away from the first segment in underlying supporting relation to the folded inflatable air bag cushion, the second segment including an attachment surface releasably attached to a second support surface outboard of the folded inflatable air bag cushion, such that upon inflation of the inflatable air bag cushion, the cradle elements are detached from the second support surface and moved out of cradling relation around the inflatable air bag cushion.

13. The invention according to claim 12, wherein the folded inflatable air bag cushion is disposed in folded relation along at least a portion of a structural roof rail extending along the occupant compartment of the vehicle such that upon inflation the inflatable air bag cushion expands downwardly away from the roof rail and over a side portion of the occupant compartment substantially adjacent to an occupant within the occupant compartment.

14. The invention according to claim 13, wherein the first support surface comprises a portion of the roof rail.

15. The invention according to claim 14, wherein the second support surface comprises a portion of the roof rail.

16. The invention according to claim 12, wherein at least a portion of the cradle elements extend in loop forming fashion substantially entirely around the inflatable air bag cushion.

17. The invention according to claim 16, wherein a portion of the cradle element attachment surfaces are releasably attached to the surface of the air bag cushion.

18. A support system for a folded inflatable air bag cushion, the support system extending over an area within the occupant compartment of a transportation vehicle, the support system comprising:

a pliable cradle element including a proximal end secured in substantially fixed relation at a first attachment location on a structural roof rail extending along the occupant compartment of the vehicle, the pliable cradle element further including an attachment surface disposed at a location removed from the proximal end for releasable attachment at a second attachment location on the roof rail, the first attachment location on the roof rail being in substantially vertical alignment with the second attachment location on the roof rail, the cradle element extending away from the first attachment location in cradling relation substantially 360 degrees around the folded inflatable air bag cushion such that the attachment surface is releasably attached at the second attachment location whereby upon inflation of the inflatable air bag cushion, the attachment surface on the cradle element is forced away from the second attachment location and the cradle element is moved out of cradling relation around the inflatable air bag cushion.