Patent ID: 7077425

Claim:
A head protecting airbag device comprising an airbag, which, when undeployed, is folded and located at the upper edge of window inside a vehicle, and the head protecting airbag device is deployable upon inflow of inflation gas to cover an inner side of the windows, the airbag comprising: a gas admissive portion inflatable by admitting inflation gas while separating an inner side wall and an outer side wall respectively thereof; and non-admissive portions that admit no inflation gas, wherein: the non-admissive portions are arranged along the longitudinal direction of the vehicle; the gas admissive portion comprises a gas feed passage and an inflatable shielding portion; the gas feed passage is located along the upper edge of the airbag and extends in the longitudinal direction of the vehicle; the inflatable shielding portion is located below the gas feed passage for covering to inner side of the windows upon deployment, the inflatable shielding portion comprises: a plurality of protection portions juxtaposed along the longitudinal direction of the vehicle, wherein the protection portions are partitioned from the gas feed passage by the non-admissive portion; a plurality of vertical passages vertically disposed in the front and rear of each of the protection portions, the vertical passages being communicated at upper ends with the gas feed passage; and a communication passage located below the protection portions and extending along a lower edge of to airbag; each of the protection portions receives inflation gas via the vertical passages, for protecting heads of occupants upon deployment of the airbag; the communication passage is communicated with the vertical passages such that inflation gas enters the vertical passages and then the communication passage before entering the protection portions; of the protection portions, at least a foremost protection portion for covering a window at the side of front seat comprises a plurality of vertical inflatable portions juxtaposed along the longitudinal direction of the vehicle, each of the vertical inflatable portions being arranged vertically and being communicated at lower end thereof with the communication passage; and the protection portions are closed entirely from the gas feed passage by the non-admissive portions between the vertical passages so that the protection portions receive inflation gas only via the vertical passages.