Head protecting airbag device
First Claim
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1. 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.
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Abstract
A head protecting airbag device according to the present invention includes a gas admissive portion and a non-admissive portion. The gas admissive portion includes a gas feed passage disposed along the upper edge of the airbag, and an inflatable shielding portion located below the gas feed passage for covering the inner side of the windows upon deployment. The inflatable shielding portion includes a plurality of protection portions and a plurality of vertical passages vertically disposed in the front and rear of each of the protection portions. The protection portions are juxtaposed along the front-rear direction of the vehicle. The vertical passages are communicated at upper ends with the gas feed passage. Each of the protection portions admits inflation gas via the vertical passages.
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Citations
5 Claims
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1. 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:
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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.
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2. A head protecting airbag device comprising an airbag, which, when undeployed, is folded and located at the upper edge of windows 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:
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a gas admissive portion inflatable by admitting inflation gas while separating an inner side wall and an outer side wall; 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 extending in the longitudinal direction of the vehicle; the inflatable shielding portion is located below to gas feed passage for covering the 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; and 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; each of the protection portions receive inflation gas via the vertical passages, for protecting heads of occupants upon deployment of the airbag; each of the protection portions comprises a plurality of transverse inflatable portions juxtaposed in the vertical direction, each of the transverse inflatable portions being disposed along the longitudinal direction of the vehicle and being communicated with the vertical passages; each transverse inflatable portion has a longitudinal dimension and a vertical dimension, and the longitudinal dimension is greater than the vertical dimension, when the airbag is inflated; the inflatable shielding portion further comprises vertical inflatable portions vertically disposed next to the vertical passages in the front and rear of the vertical passages; and the protection portions are closed entirely from the gas feed passage by the non-admissive portions between the vertical passage so that the protection portions receive inflation gas only via the vertical passages.
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3. A head protecting airbag device comprising an airbag, which, when undeployed, is folded and located at the upper edge of windows 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:
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a gas admissive portion inflatable by admitting inflation gas while separating an inner side wall and an outer side wall; and non-admissive portions that admit no inflation gas, wherein; 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 extending in the longitudinal direction of the vehicle; the inflatable shielding portion is located below the gas feed passage for covering the inner side of the windows upon deployment, and 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; and 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; each of the protection portions receive inflation gas via the vertical passages, for protecting heads of occupants upon deployment of the airbag; a plurality of spottedly arranged non-admissive portions are formed in the protection portions, thereby forming trifurcated inflation tops between the spottedly arranged non-admissive portions; the spottedly arranged non-admissive portions are arrange to define a plurality of parallel lines that extend along the longitudinal direction of the vehicle; the spottedly arranged non-admissive portions of one of the parallel lines are located between the spottedly arranged non-admissve portions of an adjacent one of the parallel lines; the inflatable shielding portion further comprises vertical inflatable portions vertically disposed next to the vertical passages in the front and rear of the vertical passages; 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.
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4. A head protecting airbag device comprising:
- an airbag, which, when undeployed, is located at the upper edge of windows inside a vehicle, the head protecting airbag device being deployable upon inflow of inflation gas; and
an inflator for supplying inflation gas to the airbag, wherein the airbag comprises a gas admissive portion inflatable upon inflow of inflation gas, the gas admissive portion comprising;a window-ward shielding portion for covering an inner side of the windows; and a roof-ward shielding portion for covering an inner side of a body-ward member in a roof side rail located above the windows, respectively upon deployment, wherein; the window-ward shielding portion is positioned upstream of the roof-ward shielding portion in the flow of inflation gas; the inflator is located in the upper edge of the windows; the airbag comprises; a gas feed passage for delivering inflation gas to the window-ward shielding portion and the roof-ward shielding portion, and the gas feed passage extends in a longitudinal direction of the vehicle between the window-ward shielding portion and the roof-ward shielding portion; and a joint port located at the upper edge of the windows so as to be connected to the inflator; and the roof-ward shielding portion comprises a cover portion for covering an inner side of the inflator upon deployment of the airbag, wherein the cover portion covers the inner side of the inflator entirely in the longitudinal direction and the vertical direction of the vehicle. - View Dependent Claims (5)
- an airbag, which, when undeployed, is located at the upper edge of windows inside a vehicle, the head protecting airbag device being deployable upon inflow of inflation gas; and
Specification
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Current AssigneeToyoda Gosei Company Limited (Toyota Motor Corporation)
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Original AssigneeToyoda Gosei Company Limited (Toyota Motor Corporation)
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InventorsOgawa, Hiroshi, Kino, Masao, Nakamura, Eishichi
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Primary Examiner(s)Fleming, Faye M.
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Application NumberUS10/656,871Publication NumberTime in Patent Office1,044 DaysField of Search280/730.2, 280/730.1, 280/743.1US Class Current280/730.2CPC Class CodesB60R 2021/23316 Inner seams, e.g. creating ...B60R 2021/23576 SewingB60R 21/213 in vehicle roof frames or p...B60R 21/232 Curtain-type airbags deploy...
