Airbag device for vehicle

Abstract

An airbag device for a vehicle including an inflator that generates high-pressure gas upon receiving an impact; and an airbag that deploys between an occupant and a vehicle body side portion from a folded state upon receiving the high-pressure gas from the inflator, wherein the airbag has a deployment restriction member that restricts the height of the airbag in the vehicle body vertical direction during deployment.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view showing the airbag device according to a first embodiment of the present invention.

FIG. 2 is a sectional view along line A-A of FIG. 1.

FIG. 3 is a side view showing the airbag in the airbag device according to a second embodiment of the present invention.

FIG. 4 is a sectional view along line B-B of FIG. 3.

FIG. 5 is a side view showing the airbag in the airbag device according to a third embodiment of the present invention.

FIG. 6 is a sectional view along line C-C of FIG. 5.

Claims

1. An airbag device for a vehicle comprising: an inflator that generates high-pressure gas upon receiving an impact; andan airbag that deploys between an occupant and a vehicle body side portion from a folded state upon receiving the high-pressure gas from the inflator,wherein the airbag is provided with a deployment restriction member that restricts a height of the airbag in a vehicle body vertical direction during deployment.

2. The airbag device for a vehicle according to claim 1, wherein the deployment restriction member is provided inside the airbag and is constituted by a belt member that extends along a vertical direction of the airbag during deployment of the airbag.

3. The airbag device for a vehicle according to claim 2, wherein the airbag is constituted by joining edge portions of base fabrics thereof, and end portions of the belt member are fixed at joining locations of the edge portions of the airbag.

4. The airbag device for a vehicle according to claim 2, wherein the airbag has a middle joining portion that joins left and right side walls of the base fabrics in a vehicle width direction midway between upper and lower joining locations of edge portions of base fabrics of the airbag, and end portions of the belt member are fixed to the middle joining portion.

5. The airbag device for a vehicle according to claim 4, wherein the belt member is fixed to the upper joining location of the edge portions and the middle joining portion of the airbag so as to connect both the upper joining location of the edge portions and the middle joining portion of the airbag.

6. The airbag device for a vehicle according to claim 5, wherein a top end of the belt member is wider than a bottom end thereof.