AIRBAG FOR A MOTOR VEHICLE

• US 20160082918A1
• Filed: 05/07/2014
• Published: 03/24/2016
• Est. Priority Date: 05/07/2013
• Status: Abandoned Application

• Current Assignee: Key Safety Systems, Inc. (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Key Safety Systems, Inc. (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Volkmann, Matthias, Muzzaffar, Shoaib
• Application Number:
  US14/889,524
• Publication Number:
  US 20160082918A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60R 2021/23509 Fabric
• CPC Class Codes: B60R 2021/23547 one piece weaving
• CPC Class Codes: B60R 21/214 in roof panels
• CPC Class Codes: B60R 21/23138 specially adapted for side protection B60R21/23184, B60R21/232 take precedence
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge
• CPC Class Codes: B60R 21/235 characterised by their material
• CPC Class Codes: B60R 21/237 characterised by the way they are folded

Abstract

The present invention relates to an airbag for a motor vehicle. The airbag comprises a gas cushion (1) which is formed from at least two layers of fabric and which is brought on inflation from a folded or rolled state into an unfolded state. The at least two layers of fabric are connected to each other at connection points to form inflated cushion portions (3) and non-inflated cushion portions (4), and the connection points have linear connection points (5) and rounded connection points (6). The linearly extending connection points (5) are arranged at an angle of 45° relative to the threads (7, 8) forming the layers of fabric, or at an angle deviating slightly there from that does not impair the tear strength of the connection points when the gas cushion (1) is in the inflated state.

Claims

1. An airbag for a motor vehicle, comprising a gas cushion (1) which is formed from at least two layers of fabric and which is brought on inflation from a folded or rolled state into an unfolded state, the at least two layers of fabric being connected to each other at connection points to form inflated cushion portions (3) and non-inflated cushion portions (4), and the connection points having linear connection points (5) and rounded connection points (6), wherein the linearly extending connection points (5) are arranged at an angle of 45°

relative to the threads (7, 8) forming the layers of fabric, or at an angle deviating slightly therefrom that does not impair the tear strength of the connection points when the gas cushion (1) is in the inflated state, and the cushion portions (3, 4) are of different sizes, the radii (R) of the connection points (6) provided at the rounded corners (2) are proportional to the lengths of the respective linearly extending connection points (5) of said cushion portions (3, 4).

2. The airbag according to claim 1, wherein the linearly extending connection points (5) running at right angles to each other are connected to each other by rounded connection points (6).

3. The airbag according to claim 1 wherein the cushion portions (3, 4) formed by the linearly extending connection points (5) are formed with a square or rectangular shape, with rounded corners (2) defined by the rounded connection points (6).

5. The airbag according to claim 1, wherein the gas cushion (1) is of the OPW (one-piece-woven) type, or consists of sections of fabric sewn together.

6. The airbag according to claim 1 wherein the gas cushion (1) is suitable in the folded state for being disposed between an inner side region of the motor vehicle and a passenger position or a plurality of passenger positions arranged one behind the other.

7. The airbag according to claim 2 wherein the cushion portions (3, 4) formed by the linearly extending connection points (5) are formed with a square or rectangular shape, with rounded corners (2) defined by the rounded connection points (6).

8. The airbag according to claim 2 wherein the gas cushion (1) is of the OPW (one-piece-woven) type, or consists of sections of fabric sewn together.

9. The airbag according to claim 3 wherein the gas cushion (1) is of the OPW (one-piece-woven) type, or consists of sections of fabric sewn together.

10. The airbag according to claim 2 wherein the gas cushion (1) is suitable in the folded state for being disposed between an inner side region of the motor vehicle and a passenger position or a plurality of passenger positions arranged one behind the other.

11. The airbag according to claim 3 wherein the gas cushion (1) is suitable in the folded state for being disposed between an inner side region of the motor vehicle and a passenger position or a plurality of passenger positions arranged one behind the other.

12. The airbag according to claim 5 wherein the gas cushion (1) is suitable in the folded state for being disposed between an inner side region of the motor vehicle and a passenger position or a plurality of passenger positions arranged one behind the other.

4. (canceled)