Airbag device for a people protection system of a vehicle and a method for producing it

• US 8,491,001 B2
• Filed: 08/20/2012
• Issued: 07/23/2013
• Est. Priority Date: 02/23/2010
• Status: Active Grant

• Current Assignee: Joyson Safety Systems Germany GmbH (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata AG (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Baumgartner, Peter, Steck, Thomas
• Primary Examiner(s): CULBRETH, ERIC D
• Application Number:
  US13/589,903
• Publication Number:
  US 20120313352A1
• Time in Patent Office: 337 Days
• Field of Search: 280/743.1, 280/728.2, 280/728.1
• US Class Current: 280/728.2
• CPC Class Codes: B60R 21/201 Packaging straps or envelopes for inflatable members

Abstract

An air bag device for a people protection system of a vehicle, having a folded air bag which forms an air bag package having a length and a height. An inlay element, directly connected to and/or placed into the air bag, is provided having a length which essentially corresponds to the length of at least a section of the air bag package and having a height which essentially corresponds to the height of the air bag package. The inlay element is provided and arranged to define the folded air bag regarding its cross-section dimensions and to thereby fix it with desired cross-section dimensions. The inlay element is designed as an elongated flat section and is made of multiple segments, succeeding one another in the longitudinal direction of the air bag. At least one segment of the inlay element has a bore.

Claims

1. An air bag device for a people protection system of a vehicle, comprising

a folded air bag which forms an air bag package having a length and a height, and

an inlay element, directly connected to and/or placed into the air bag, having a length which essentially corresponds to the length of at least a section of the air bag package and having a height which essentially corresponds to the height of the air bag package,

wherein the inlay element is provided and arranged to define the folded air bag regarding its cross-section dimensions and to thereby fix it with desired cross-section dimensions and is designed as an elongated flat section, and

wherein the inlay element is made of multiple segments succeeding one another in the longitudinal direction of the air bag, in that at least one segment of the inlay element has a bore through which to pass a fastening means which serves to fasten the air bag device in a vehicle, and in that this segment is foldably fastened onto the air bag package so that it forms an air bag flap.

2. The air bag device according to claim 1, wherein the inlay element is sewn together with a layer of the air bag and/or is connected to a layer of the air bag via fastening means which serve to fasten the air bag device in a vehicle.

3. The air bag device according to claim 1, wherein the inlay element extends in the longitudinal direction of the air bag on an upper edge of the air bag, which said edge is to be fastened in a vehicle, wherein the air bag is folded towards the inlay element.

4. The air bag device according to claim 1, wherein the inlay element extends in the longitudinal direction of the air bag on a lower edge of the air bag, which said edge is to be folded up towards an upper edge, wherein the air bag is folded towards the upper edge together with the inlay element.

5. The air bag device according to claim 1, wherein a fixing of the inlay element in relation to the air bag takes place by means of fastening means which serve to fasten the air bag device in a vehicle.

6. The air bag device according to claim 5, wherein the fastening means comprise at least one fastening element which extends through a bore of at least one air bag layer and said bore of the inlay element, respectively.

7. The air bag device according to claim 1, wherein at least two segments of the inlay element have a different profile.

8. The air bag device according to claim 1, further comprising enveloping means which envelop the air bag package and the inlay element, wherein the enveloping means fix the air bag package in a shape pushed against the inlay element.

9. The air bag device according to claim 8, wherein the enveloping means are formed by a flexible envelope, wherein the envelope forms at least one foldable area which is designed and suited, in the folded-in state, to come to rest over a fastening element which serves to fasten the air bag device in a vehicle.

10. The air bag device according to claim 1, wherein the bore is a rectangular opening.

11. The method for producing an air bag device according to claim 1, with the steps:

providing an air bag;

providing an inlay element which is designed as an elongated flat section, has a length and a height and is provided and arranged to define the folded air bag regarding its cross-section dimensions and to thereby fix it with desired cross-section dimensions;

wherein the inlay element is made of multiple segments succeeding one another in the longitudinal direction of the air bag and wherein at least one segment of the inlay element has a bore through which to pass a fastening means which serves to fasten the air bag device in a vehicle;

fastening the inlay element onto the air bag and/or placing the inlay element into a pocket or a loop of the air bag;

folding the air bag to form an air bag package having a length and a height, wherein the inlay element has a length which essentially corresponds to the length of at least a section of the air bag package, and the inlay element has a height which essentially corresponds to the height of the air bag package;

wherein the segment, which has the bore through which to pass a fastening means, is foldably fastened onto the air bag package so that it forms an air bag flap.

12. The method according to claim 11, wherein the air bag package is pressed against the inlay element, wherein the air bag package is reduced in its thickness, and by fixing the air bag package, reduced in its thickness, during or after the pressing in such a way that the folding and the reduced thickness are maintained.