SIDE AIRBAG AND METHOD OF FOLDING

• US 20090079174A1
• Filed: 12/04/2008
• Published: 03/26/2009
• Est. Priority Date: 11/20/2003
• Status: Active Grant

• Current Assignee: Autoliv AB (Autoliv Incorporated)
• Original Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Inventors: Tesch, Todd E., Matlack, Edward J.
• Granted Patent: US 7,695,005 B2
• Time in Patent Office: Days
• US Class Current: 280/730.200
• CPC Class Codes: B60R 2021/23386 External tether means
• CPC Class Codes: B60R 2021/23514 coated fabric
• CPC Class Codes: B60R 21/213 in vehicle roof frames or pillars
• 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 21/237 characterised by the way they are folded

Abstract

A method and apparatus for providing a side airbag device for use in a vehicle, comprising: an inflatable cushion for deployment from an unexpanded state to an expanded state. The inflatable cushion is positioned behind a headliner of the vehicle in an un-inflated state and the inflatable cushion is configured to traverse a side of the vehicle when it is inflated. The inflatable cushion also comprising a deploying edge that defines a portion of a periphery of the inflated cushion, wherein the inflatable cushion is folded in a manner that causes the deploying edge to deploy as a first leading edge as said inflatable cushion is inflated to an expanded state by an inflator wherein the deploying edge is the first portion of the inflatable cushion to expand around the headliner.

Claims

1. A side airbag device for use in a vehicle having a forward end, a rearward end and a pair of sides disposed therebetween, comprising:

an inflator for inflating said inflatable cushion;

wherein said inflatable cushion is folded in a manner that causes said deploying edge to deploy as a first leading edge as said inflatable cushion is inflated to said expanded state by said inflator.

an inflatable cushion for deployment from an unexpanded state to an expanded state, said inflatable cushion being configured to traverse a portion of one of the pair of sides of the vehicle in said expanded state, said inflatable cushion comprising an inflation opening, a securement portion and a deploying edge, said inflatable cushion further comprising a traversing portion and a packet of parallel pleats that includes a first end pleat spaced from the securement portion, a second end pleat adjacent the securement portion and a series of middle pleats disposed therebetween, said traversing portion extending from the securement portion to the said first end pleat;

said deploying edge extending from the second end pleat toward the first end pleat opposite the traversing portion and about the first end pleat;

an inflator for inflating said inflatable cushion;

wherein said inflatable cushion is folded in a manner that causes said deploying edge to deploy as a first leading edge as said inflatable cushion is inflated to said expanded state by said inflator.

2. The side airbag device as in claim 1, wherein the inflatable cushion is configured to be positioned behind a headliner of the vehicle wherein the inflatable cushion is in said unexpanded state.

3. The side airbag device as in claim 9, wherein said deploying edge of said inflatable cushion provides a portion of an exterior configuration of the inflatable cushion when it is in said unexpanded state.