airbag

Abstract

The present invention relates to an airbag comprising: an inflator; and a cushion in which gas generated from the inflator flows in and is developed, wherein the cushion comprises a rupture unit which is torn to limit internal pressure as gas generated from the inflator is discharged, where a torn end is angularly formed. The airbag can be controlled with a structure of the cushion itself without an extra internal pressure controller, and has the same work process with existing airbags. A number of components are reduces since an extra tedder or a device is not needed. Accordingly, improvement of performance, convenience, simplification of processes, and cost reduction caused by decrease of a number of components and lightening are possible.

Description

technical field [0001] The present invention relates to an airbag, and more specifically relates to an airbag having an impact-absorbing structure for adjusting the internal pressure of an airbag cushion provided in a vehicle. Background technique [0002] Generally speaking, vehicles are equipped with various safety devices to protect occupants in preparation for emergencies that do not know to occur at a certain moment. As a representative example, built-in airbags are installed to protect occupants, and airbags are installed to protect people who have been hit. Exterior airbags. [0003] However, this airbag fails to fully absorb the impact energy due to its instantaneous deployment, which will cause greater damage to the occupant or the person who is collided. [0004] Therefore, the concept of active vents is applied to the existing airbags in order to absorb the impact. Among them, the passenger airbags have LRD vents (LOW RISK DEPLOYMENT VENT, Low Risk Deployment Ven...

AI Technical Summary

Problems solved by technology

[0007] Here, when the Passenger Airbag Active Vent (Passenger Airbag Active Vent) for the passenger is applied to the exterior airbag, there is a problem that the cost of parts increases and the assembly is complicated

[0008] Additionally, if figure 1 In the collision mode experiment, due to the damage of the air cushion or the undesired pressure rise, there is a problem that the energy absorbed to the collided body is insufficient.

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