CURTAIN AIRBAG DEVICE FOR VEHICLE

• Main Author: OBARA KOJI
• Format: Patent
• Language: English; Japanese
• Published: 23.05.2023
• Subjects: PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

To provide a curtain airbag device for a vehicle, capable of effectively reducing the deformation of a curtain airbag outward in a vehicle width direction caused by the head of an occupant.SOLUTION: A curtain airbag device 40 for a vehicle includes: a curtain airbag 50 having a sub chamber 52 which, by the supply of gas through a main chamber 54 for protecting the head PfH of an occupant Pf at least in the event of rollover of a vehicle 10, is inflated and deployed to a vehicle front side relative to the main chamber 54, and having a sub chamber lower part 72 which is thereby inflated and deployed to a vehicle lower side relative to a door belt line BL; a reinforcing band 70 which is linearly provided from an upper end part to the vicinity of a lower end part in the outer face of the sub chamber 52; and a friction member 80 which is provided on the outer face of the sub chamber lower part 72, and in which the friction coefficient of an outer face capable of coming into contact with a door trim 77 is made greater than the friction coefficient of a base cloth forming the curtain airbag 50.SELECTED DRAWING: Figure 1 【課題】乗員の頭部によるカーテンエアバッグの車幅方向外側への変形量を効果的に低減できる車両用カーテンエアバッグ装置を得る。【解決手段】少なくとも車両１０の横転時に、乗員Ｐｆの頭部ＰｆＨを保護する主チャンバ５４を経てガスが供給されることにより、主チャンバ５４よりも車両前方側へ膨張展開する副チャンバ５２と、ドアベルトラインＢＬよりも車両下方側へ膨張展開する副チャンバ下部７２と、を有するカーテンエアバッグ５０と、副チャンバ５２の外面における上端部から下端部付近まで直線状に設けられた補強帯７０と、副チャンバ下部７２の外面に設けられ、ドアトリム７７と接触可能な外面の摩擦係数が、カーテンエアバッグ５０を構成する基布の摩擦係数よりも大きくされた摩擦部材８０と、を備えた車両用カーテンエアバッグ装置４０とする。【選択図】図１