CURTAIN AIRBAG DEVICE AND METHOD OF MANUFACTURING THE SAME

• US 20110215556A1
• Filed: 05/14/2008
• Published: 09/08/2011
• Est. Priority Date: 05/14/2007
• Status: Active Grant

• Current Assignee: Autoliv Development AB (Autoliv Incorporated)
• Original Assignee: Autoliv Development AB (Autoliv Incorporated)
• Inventors: Higano, Makoto, Saegusa, Takayoshi
• Granted Patent: US 8,562,016 B2
• Time in Patent Office: Days
• US Class Current: 280/730.2
• 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: Y10T 29/49826 Assembling or joining

Abstract

To provide a structure of an airbag capable of maintaining an attaching stability of the airbag for a long period and a method of manufacturing the airbag. Further, an object is to provide a structure of a curtain airbag device capable of easily coupling an airbag body with brackets without requiring special equipment when they are coupled with each other and a method of manufacturing the curtain airbag device.

The curtain airbag device of the invention has a bag body accommodated to a window upper edge of a vehicle for expanding and inflating toward inside of the vehicle in a compressed state when it is operated, a plurality of strip-shaped coupling members coupled with the bag body, and a plurality of brackets coupled with the bag body for fixing the bag body to the vehicle. Each bracket has a coupling hole through which each strip-shaped coupling member is inserted and a fixing hole into which a predetermined tightening member is inserted. The bag body is coupled with the brackets by the strip-shaped coupling members as well as the bag body is fixed to the vehicle through the brackets by the tightening members.

Claims

1. A curtain airbag device, characterized by comprising:

a bag body accommodated to a window upper edge of a vehicle in a compressed state for expanding and inflating toward inside of the vehicle when it is operated;

a plurality of strip-shaped coupling members coupled with the bag body; and

a plurality of brackets coupled with the bag body for fixing the bag body to the vehicle,

wherein, each of the plurality of brackets has a coupling hole through which each of the strip-shaped coupling members is inserted and a fixing hole into which each of predetermined tightening members is inserted,

the bag body is coupled with the brackets by the strip-shaped coupling members, and

the bag body is fixed to the vehicle by the tightening members through the brackets.

2. The curtain airbag device according to claim 1, characterized in that the strip-shaped coupling members have such a structure that ends are fixed to the bag body.

3. The curtain airbag device according to claim 2, characterized in that the ends of the strip-shaped coupling members are coupled with the bag body by sewing.

4. The curtain airbag device according to claim 1, 2, or 3, characterized in that the strip-shaped coupling members are tabs formed of the same material as that of the bag body integrally therewith.

5. The curtain airbag device according to claim 1, 2, or 3, characterized in that the strip-shaped coupling members are arranged as members different from the bag body.

6. A method of manufacturing the airbag device according to claim 1, characterized by comprising:

a step of coupling the airbag body with the brackets by inserting the one end of the strip-shaped coupling members through the coupling holes of the brackets and then coupling both the ends with the bag body; and

a step of folding and compressing the airbag body including the brackets.

7. The method of manufacturing the curtain airbag device according to claim 6, characterized in that the ends of the strip-shaped coupling members are coupled with the bag body by sewing.

8. The method of manufacturing the curtain airbag device according to claim 6 or 7, characterized in that the strip-shaped coupling members are tabs formed of the same material as that of the bag body integrally therewith.

9. The method of manufacturing the curtain airbag device according to claim 6 or 7, characterized in that the strip-shaped coupling members are arranged as members different from the bag body.

10. A curtain airbag device, characterized by comprising:

a bag body accommodated to a window upper edge of a vehicle in a compressed state for expanding and inflating toward inside of the vehicle when it is operated;

a plurality of strip-shaped coupling members coupled with the bag body; and

a plurality of brackets coupled with the bag body for fixing the bag body to the vehicle,

wherein each of the plurality of brackets includes;

a coupling hole through which each of the strip-shaped coupling members is inserted; and

a fixing hole through which a tightening member for fixing the bag body to the vehicle is inserted through the brackets, and

the bag body is coupled with the brackets by the strip-shaped coupling members.

11. The curtain airbag device according to claim 10, characterized in that the strip-shaped coupling members have such a structure that ends are fixed to the bag body.

12. The curtain airbag device according to claim 11, characterized in that the ends of the strip-shaped coupling members are coupled with the bag body by sewing.

13. The curtain airbag device according to claim 10, 11, or 12, characterized in that the strip-shaped coupling members are tabs formed of the same material as that of the bag body integrally therewith.

14. The curtain airbag device according to claim 10, 11, or 12, characterized in that the strip-shaped coupling members are arranged as members different from the bag body.

15. A method of manufacturing the airbag device according to claim 10, characterized by comprising:

a step of coupling the airbag body with the brackets by inserting the one end of the strip-shaped coupling members through the coupling holes of the brackets and then coupling both the ends with the bag body; and

a step of folding and compressing the airbag body including the brackets.

16. The method of manufacturing the curtain airbag device according to claim 15, characterized in that the ends of the strip-shaped coupling members are coupled with the bag body by sewing.

17. The method of manufacturing the curtain airbag device according to claim 15 or 16, characterized in that the strip-shaped coupling members are tabs formed of the same material as that of the bag body integrally therewith.

18. The method of manufacturing the curtain airbag device according to claim 15 or 16, characterized in that the strip-shaped coupling members are arranged as members different from the bag body.