Patent attributes
An airbag is composed a first airbag which is formed in a manner that a plurality of frame bodies of a substantially same triangle ring shape are horizontally aligned with respective central space portions of the frame bodies communicated with each other and connected with no gap, and a second airbag which is formed in a manner that the central space portions of the air bag body are blocked with blocking members. When the first airbag is deployed and inflated with gas generated by an inflator in a triangle ring shape upon a collision, air from the atmosphere is taken in to the central space portions of the first airbag from check valves and intake-exhaust holes, and the second air bag is deployed and inflated by using the airbag body as an outer frame and retaining the air inside thereof.
