AIR BAG SYSTEM

Abstract

An air bag system is disclosed. The air bag system comprises a cushion deployed by gas from an inflator in the event of a vehicle collision, for protecting a passenger, a gas guider provided between the cushion and the inflator, for guiding the gas from the inflator to the cushion, and a guide bag provided at one side of the cushion, and deployed by the gas guided by the gas guider earlier than the cushion is so that the cushion is deployed without interference from other adjacent components. The cushion is smoothly deployed without interference from other adjacent components, thereby improving the deployment performance of the cushion. A ramp used for a prior art air bag system is omitted, thus the air bag system is formed in an overall simple structure. The unit cost and weight of the air bag system are lowered, and it is unnecessary to acquire a space for installing the ramp, thereby improving the design freedom of the air bag system.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

In the drawings:

FIG. 1 is a perspective view illustrating a curtain air bag system according to the prior art;

FIG. 2 is an exploded perspective view illustrating the main parts of the curtain air bag system according to the prior art;

FIG. 3 is a configuration diagram schematically illustrating a curtain air bag system being installed on a vehicle according to a first embodiment of the present invention;

FIG. 4 is an exploded perspective view illustrating the main parts of the curtain air bag system according to the first embodiment of the present invention;

FIG. 5 is a perspective view illustrating a deployed state of the curtain air bag system according to the first embodiment of the present invention;

FIG. 6 is a perspective view illustrating a cushion of and a guide bag of the curtain air bag system according to the first embodiment of the present invention;

FIG. 7 is an exploded perspective view illustrating the main parts of the curtain air bag system according to a second embodiment of the present invention; and

FIG. 8 is an exploded perspective view illustrating the main parts of the curtain air bag system according to a third embodiment of the present invention.

Claims

1. An air bag system, comprising: a cushion deployed by gas from an inflator in the event of a vehicle collision, for protecting a passenger;a gas guider, provided between the cushion and the inflator, to guide the gas from the inflator to the cushion; anda guide bag provided at one side of the cushion, and deployed by the gas guided by the gas guider earlier than the cushion, so that the cushion is deployed without interference from other adjacent components.

2. The air bag system of claim 1, wherein the inflator is connected to one side of the gas guider, and first and second gas release holes, to release the gas into the cushion and the guide bag are formed at the other side of the gas guider.

3. The air bag system of claim 2, wherein the second gas release hole is larger than the first gas release hole.

4. The air bag system of claim 2, wherein the second gas release hole is formed in a plurality and is concentrated at one region of the gas guider.

5. The air bag system of claim 2, wherein a diffuser, that increases the amount of gas released and guides the gas into the guide bag, is formed on the second gas release hole.

6. The air bag system of claim 1, wherein the guide bag is formed integral with the cushion.

7. The air bag system of claim 1, wherein the guide bag is formed in a plurality at different positions of the cushion.

8. The air bag system of claim 1, wherein the guide bag changes an initial deployment position of the cushion to a position where the cushion is deployable without interference from other adjacent components.

9. The air bag system of claim 1, wherein the air bag system is a curtain air bag system which deploys the cushion downward in a curtain shape along the inner side faces of the vehicle by the gas of the gas guider by having the cushion installed on a side roof rail of the vehicle, the guide bag being provided at a region of the cushion facing the center pillar trim so that the cushion is not interfered by the center pillar trim upon deployment of the cushion.

10. The air bag system of claim 9, wherein the guide bag is provided on the back surface of the cushion facing the side roof rail so that an initial deployment position of the cushion is moved more inward of the vehicle than the center pillar trim is.

11. The air bag system of claim 10, wherein the guide bag is deployed toward the side roof rail so as to push the cushion to the interior side of the vehicle.

12. The air bag system of claim 11, wherein the guide bag is deployed longer than the thickness of the center pillar trim.