Side Airbag Module For A Motor Vehicle

• US 20080079247A1
• Filed: 09/28/2005
• Published: 04/03/2008
• Est. Priority Date: 10/04/2004
• Status: Active Grant

• Current Assignee: Autoliv AB (Autoliv Incorporated)
• Original Assignee: Autoliv AB (Autoliv Incorporated)
• Inventors: Henricsson, Peter, Palo, Anders, Svantesson, Jonas
• Granted Patent: US 7,832,759 B2
• Time in Patent Office: Days
• US Class Current: 280/730.2
• CPC Class Codes: B60R 2021/23324 Inner walls crating separate compartments, e.g. communicating with vents
• CPC Class Codes: B60R 2021/23547 one piece weaving
• CPC Class Codes: B60R 2021/2612 Gas guiding means, e.g. ducts
• CPC Class Codes: B60R 21/21 in vehicle side panels, e.g. doors pillar mounted arrangements B60R21/213
• CPC Class Codes: B60R 21/23138 specially adapted for side protection B60R21/23184, B60R21/232 take precedence

Abstract

A side impact airbag module for a motor vehicle (1), with an airbag (11) which is inflatable by means of a gas generator (8) and which unfolds in a flat fashion, in which the gas generator (8) is connected with the airbag by means of a feed tube (10), and in which the airbag module is designed for installation adjacent a door of a motor vehicle (1). This side airbag module includes a feed tube (10) having two gas outlet openings (14) or gas outlet areas spaced at a distance from one another, and situated in the area of airbag chambers (19, 20) are formed, whose filling openings, are situated immediately above the gas outlet openings of the feed tube (10) the airbag having one or more middle chambers connected for gas flow between the end chambers.

Claims

1. A side impact airbag module for a motor vehicle of the type having an airbag which is inflatable by means of a gas generator and which unfolds in a flat fashion, wherein the gas generator is connected with the airbag by means of a feed tube, and wherein the side airbag module is adapted for installation adjacent a side door of the motor vehicle, the airbag module comprising the feed tube forming two gas outlet openings adjacent opposite ends of the feed tube and spaced a distance apart, the airbag forming a pair of end chambers having filling openings adjacent to the feed tube gas outlet openings, whereby gas from the outlet openings first fills and inflates the end chambers, and then inflates the middle chamber.

2. The side airbag module according to claim 1, wherein the airbag formed of three fabric layers including an outer layer, an inner layer, and a middle layer, the layers lying above one another and connected with each other at a perimeter of the airbag edge, the fabric layers forming the end and middle airbag chambers of the airbag between the airbag perimeter edge in such a way that the middle fabric layer is connected alternately with the inner or outer fabric layer.

3. The side airbag module according to claim 2, wherein the connection of the three fabric layers is formed by stitching or bonding together.

4. The side airbag module according to any of claim 1, wherein the chambers are formed in such a way that when in inflated state they are alternately domed in cross-section in the longitudinal extension of airbag.

5. The side airbag module according to claim 1, wherein the airbag is folded in an uninflated condition and the end and middle chambers are formed in such a way that in an inflated state of the airbag they are orientated generally parallel to the unfolding direction of airbag.

6. The side airbag module according to claim 1, wherein at least one end chamber is formed so as to run at a slope to the feed tube.