| 摘要 |
A pedestrian protection airbag device is provided in which an airbag (34) having a closed cross section is formed by inflating and deploying a front outer panel (16) and a front inner panel (18) of a front pillar (15) by means of high pressure gas generated by an inflator (26). This enables the head of a pedestrian to be protected from an impact due to collision with the front pillar (15). Furthermore, since impact absorption performance is exhibited by plastic deformation of the deployed airbag (34), as long as deployment of the airbag (34) is completed before restraining the pedestrian, it is unnecessary to subsequently control the internal pressure of the airbag (34), and it becomes possible for an effective impact absorption performance to always be exhibited regardless of the vehicle speed at the time of collision or the physique of the pedestrian while simplifying the specification of the inflator (26) and reducing the cost. |
