CURTAIN AIRBAG APPARATUS

• US 20180065588A1
• Filed: 08/28/2017
• Published: 03/08/2018
• Est. Priority Date: 09/05/2016
• Status: Active Grant

• Current Assignee: Hyundai Mobis Co., Ltd.
• Original Assignee: Hyundai Mobis Co., Ltd.
• Inventors: LEE, Jong Seob
• Granted Patent: US 10,556,565 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 2021/23308 the individual compartments defining the external shape of the bag
• 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 21/2346 Soft diffusers

Abstract

A curtain airbag apparatus may include: an inflator part configured to inject gas; a main cushion part expanded by the gas injected from the inflator part, and coupled to a car body; and a cushion moving part interposed between the main cushion part and the car body, and expanded by the gas injected from the inflator part so as to move the main cushion part. The gas transferred to the cushion moving part may be passed through the cushion moving part and transferred to the main cushion part.

Claims

1. A curtain airbag apparatus comprising:

an inflator part configured to inject gas;

a main cushion part expanded by the gas injected from the inflator part, and coupled to a car body; and

a cushion moving part interposed between the main cushion part and the car body, and expanded by the gas injected from the inflator part so as to move the main cushion part,

wherein the gas transferred to the cushion moving part is passed through the cushion moving part and transferred to the main cushion part.

2. The curtain airbag apparatus of claim 1, wherein the main cushion part comprises:

a main cushion having a gas injection hole into which the inflator part is injected, and expanded by the gas injected from the inflator part; and

a cushion mounting part connecting the main cushion and the car body, wherein the cushion moving part is located between the cushion mounting part and the car body.

3. The curtain airbag apparatus of claim 2, wherein the cushion mounting part comprises:

a cushion mounting guide being in contact with the main cushion, wherein the cushion moving part is positioned between the cushion mounting guide and the car body; and

a mounting tab coupling the main cushion to the cushion mounting guide, and

the cushion mounting guide is deformed by the cushion moving part when the cushion moving part is expanded, and changes the location or expansion direction of the main cushion part.

4. The curtain airbag apparatus of claim 2, wherein the main cushion part further comprises a gas transfer guide part located in the gas injection hole, and guiding a transfer of the gas injected from the inflator part toward the cushion moving part.

5. The curtain airbag apparatus of claim 4, wherein the gas transfer guide part comprises:

a guide cushion installed in the main cushion;

a guide injection part installed in the guide cushion and having the inflator part inserted therein; and

a gas transfer part installed in the guide cushion, and opened toward the cushion moving part so as to transfer gas introduced into the guide cushion to the cushion moving part.

6. The curtain airbag apparatus of claim 5, wherein the gas transfer guide part further comprises a gas guide hole for guiding the gas introduced into the guide cushion to a predetermined location of the main cushion.

7. The curtain airbag apparatus of claim 1, wherein the cushion moving part comprises:

a gas injection part into which the gas injected from the inflator part is introduced;

a moving expansion part connected to the gas injection part, expanded by the gas received from the gas injection part, and pressing and moving the main cushion part; and

a gas discharge part connecting the moving expansion part and the main cushion part, and transferring the gas received from the moving expansion part to the main cushion part.

8. The curtain airbag apparatus of claim 7, wherein the cushion moving part and the main cushion part are formed as one body.

9. The curtain airbag apparatus of claim 7, wherein the cushion moving part and the main cushion part are formed by sewing a pair of panels, and distinguished from each other by an expansion section part formed through a process of sewing the pair of panels in the longitudinal direction of the car body.

10. The curtain airbag apparatus of claim 7, wherein the cushion moving part is located above a pillar trim.