VEHICULAR CURTAIN AIR BAG DEVICE

• US 20180072256A1
• Filed: 08/17/2017
• Published: 03/15/2018
• Est. Priority Date: 09/14/2016
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: HIODA, Seiji, OHARA, Kouji
• Granted Patent: US 10,442,386 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 2021/0006 Lateral collision
• CPC Class Codes: B60R 2021/0009 Oblique collision
• CPC Class Codes: B60R 2021/0018 Roll-over
• CPC Class Codes: B60R 2021/0048 Head
• CPC Class Codes: B60R 2021/23153 specially adapted for rear seat passengers
• 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 21/231 characterised by their shape, construction or spatial configuration
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge

Abstract

There is provided a vehicular curtain air bag device including a curtain air bag, the curtain air bag including: a rear seat chamber that inflates and deploys between a head of a rear seat occupant and a vehicle interior side section from an upper end section of the vehicle interior side section; and a headrest chamber extending from a rear end section of the rear seat chamber, the headrest chamber inflating and deploying between a headrest of a rear seat and the vehicle interior side section in a vehicle width direction.

Claims

1. A vehicular curtain air bag device comprising a curtain air bag, the curtain air bag including:

a rear seat chamber that inflates and deploys between a head of a rear seat occupant and a vehicle interior side section from an upper end section of the vehicle interior side section; and

a headrest chamber extending from a rear end section of the rear seat chamber, the headrest chamber inflating and deploying between a headrest of a rear seat and the vehicle interior side section in a vehicle width direction.

2. The vehicular curtain air bag device according to claim 1, wherein

the curtain air bag is folded in a vehicle up-down direction to be housed in an upper end section of the vehicle interior side section, and at least a part of the folded headrest chamber is covered from a vehicle interior inner side by a C pillar garnish.

3. The vehicular curtain air bag device according to claim 1, wherein

the headrest chamber is a delay chamber that starts to inflate and deploy later than the rear seat chamber.

4. The vehicular curtain air bag device according to claim 1, wherein

an inflated width of the headrest chamber, in the vehicle width direction, is smaller than that of the rear seat chamber.

5. The vehicular curtain air bag device according to claim 1, wherein

an inflated width of the headrest chamber, in the vehicle up-down direction, is smaller than that of the rear seat chamber.

6. The vehicular curtain air bag device according to claim 1, wherein

the curtain air bag further including a non-inflating section that is configured between the rear seat chamber and the headrest chamber.