Airbag and airbag system

摘要

An airbag is inflated with gas ejected from an inflator disposed at a base end thereof in a direction that a front end moves away from the base end. The airbag includes a left half airbag to be inflated on a front left side of an occupant and a right half airbag to be inflated on a front right side of the occupant. A partition wall is disposed in the airbag for dividing the airbag into a base end portion and a front end portion. The partition wall has openings for communicating the base end portion and the front end portion with each other.