| 摘要 |
A head-protecting airbag and a head-protecting airbag device that exhibit a gentle change in internal pressure of chambers and facilitate the adjustment of the internal pressure of a primary chamber. In the event of a side impact or rollover of a vehicle, a gas generator is activated to supply gas into a primary chamber cell group between an air-permeable panel and a first panel of an airbag, which is thus inflated. The airbag expands downward like a curtain and inflates between vehicle occupants and an in-vehicle lateral surface. If the cushion cells, upon receiving the head of an occupant, exhibit an internal pressure higher than a predetermined value, gas flows into a secondary chamber through the air-permeable panel.
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