Air bag device

Patent metadata

Field	Value
Publication number	US-2018015902-A1
Application number	US-201515546211-A
Country	US
Kind code	A1
Filing date	Nov 17, 2015
Priority date	Jan 29, 2015
Publication date	Jan 18, 2018
Grant date	—

Abstract

An airbag device capable of avoiding interference between a cushion and a structure at an upper part of a vehicle interior. An airbag device ( 100 ) provided in a vehicle having a prescribed structure ( 152 ) such as a rearview mirror suspended from an upper part of a vehicle interior includes a cushion ( 108 ) inflated and deployed into a bag shape to restrain an occupant of a seat from a front side, and an avoidance-shaped part ( 154 ) provided at an upper part of the cushion ( 108 ) to avoid contact between the inflated and deployed cushion ( 108 ) and the structure ( 152 ), and the avoidance-shaped part ( 154 ) is recessed downward over a range between positions at prescribed distances from the structure ( 152 ) in vehicle forward and backward directions, respectively.

First claim

1 . An airbag device adapted to be provided in a vehicle having a prescribed structure suspended from an upper part of a vehicle interior, the airbag device comprising:
a cushion adapted to be inflated and deployed into a bag shape to restrain an occupant of a seat from a front side; an avoidance-shaped part provided at an upper part of the cushion to avoid contact between the inflated and deployed cushion and the structure, the avoidance-shaped part being recessed downward over a range between positions at prescribed distances from the structure in vehicle forward and backward directions.

2 . The airbag device according to claim 1 , further comprising wherein the cushion restrains the occupant of one of a left seat and a right seat, and
the avoidance-shaped part is provided at an upper part of the cushion on a vehicle inner side in a vehicle widthwise direction.

3 . The airbag device according to claim 1 , further comprising the avoidance-shaped part is recessed in a range positioned higher than a trajectory of a center of gravity of a head of an occupant when the occupant is restrained.

4 . The airbag device according to claim 1 , further comprising a housing having a box shape for storing the cushion and provided inside an upper surface part of an instrument panel of the vehicle, wherein
the cushion tears open the upper surface part of the instrument panel upon the airbag being inflated and deployed.

5 . The airbag device according to claim 1 , further comprising the cushion is inflated and deployed to contact a windshield of the vehicle and an upper surface part of an instrument panel of the vehicle.

6 . An airbag device provided in a vehicle having a prescribed structure suspended from an upper center of a vehicle interior in a vehicle widthwise direction, the airbag device comprising:
a main bag adapted to be inflated and deployed in front of a seat, a center bag adapted to be inflated and deployed on an inner side of the main bag in the vehicle widthwise direction; and an avoidance-shaped part provided at an upper part of the center bag and recessed downward to avoid contact between the center bag and the structure upon deployment of the main bag and the center bag.

7 . The airbag device according to claim 6 , wherein the avoidance-shaped part is recessed downward over a range between positions at prescribed distances from the structure in vehicle forward and backward directions upon deployment of the main bag and the center bag.

8 . The airbag device according to claim 6 , further comprising the avoidance-shaped part is recessed in a range positioned higher than a trajectory of a center of gravity of the head of the occupant when the occupant is restrained.

9 . The airbag device according to claim 6 , further comprising a rear region provided behind the avoidance-shaped part in the center bag and protruding above a lower end of the structure.

10 . The airbag device according to claim 6 , further comprising the center bag protrudes beyond the main bag in a vehicle backward direction during inflation and deployment.

11 . The airbag device according to claim 6 , further comprising a front region provided ahead of the avoidance-shaped part in the center airbag and protruding above a lower end of the structure upon deployment of the main bag and the center bag.

12 . The airbag device according to claim 6 , furthering comprising the center bag is inflated and deployed to contact a windshield of the vehicle and an upper surface part of an instrument panel of the vehicle.

13 . The airbag device according to claim 6 , further comprising the main bag and the center bag are bag-shaped, and
the airbag device further comprises a cushion connecting part that connects the main bag and the center bag ahead of a rear edge of the main bag, and the head of the occupant is restrained by a valley between the main bag and the center bag behind the cushion connecting part.

14 . The airbag device according to claim 6 , further comprising a housing having a box shape, storing the main bag and the center bag and provided inside an upper surface part of an instrument panel of the vehicle, wherein
the main bag and the center bag tear open the upper surface part of the instrument panel to be inflated and deployed.

15 . The airbag device according to claim 1 , wherein the prescribed structure is a rearview mirror.

16 . The airbag device according to claim 6 , wherein the prescribed structure is a rearview mirror.

Assignees

• Autoliv Dev

Inventors

• MAENISHI Kai
• Nakajima Yutaka

Classifications

• B60R21/2334

  Expansion control features · CPC title

• B60R21/233 Primary

  comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other (B60R21/232 takes precedence) · CPC title

• B60R21/205 Primary

  in dashboards · CPC title

• B60R2021/23308

  the individual compartments defining the external shape of the bag · CPC title

• B60R2021/0009

  Oblique collision · CPC title