The invention discloses a safety air bag and a steering wheel. The safety air bag comprises a main air bag, the main air bag comprises a first sheet layer and a second sheet layer, and the first sheet layer and the second sheet layer are in butt joint and sewn to form a first cavity; an air passing opening is formed in the second sheet layer; the supporting air bag is sewn with the second sheet layer, and a second cavity communicated with the air passing opening is formed in the supporting air bag; the gas flow guide structure is provided with a flow guide sheet layer and a pair of gas blocking sheet layers; the flow guide sheet layer wraps the second sheet layer to form a flow guide channel, and the air passing port is located in an area wrapped by the flow guide sheet layer; the air blocking sheet layer is sewn with the second sheet layer and extends into the supporting air bag; the pair of gas blocking sheet layers are alternately arranged in a staggered manner; the gas generator introduces gas into the supporting gas bag through the flow guide channel; when the gas generator is inflated, the main gas bag and the supporting gas bag are changed from a storage state to an expansion state, and when the supporting gas bag is in the expansion state, the supporting gas bag is supported to the instrument desk from the notch. Compared with the prior art, the safety air bag can be stably supported after being unfolded, and the loss risk of a driver is reduced.
本发明公开了一种安全气囊及方向盘。本发明中,安全气囊包括:主气袋,主气袋包括第一片层和第二片层,相对接缝合形成第一腔室;第二片层上开设有走气口;支撑气袋与第二片层相缝合,支撑气袋内具有与走气口相通的第二腔室;气体导流结构具有导流片层和一对挡气片层;导流片层包覆第二片层形成导流通道,走气口位于导流片层包覆的区域;挡气片层与第二片层相缝合,延伸进入支撑气袋中;一对挡气片层交替错位设置;气体发生器通过导流通道向支撑气袋通入气体;主气袋和支撑气袋在气体发生器充气时由收纳状态至膨胀状态,支撑气袋在膨胀状态时从缺口处支撑至仪表台上。与现有技术相比,使得安全气囊展开后可被稳定支撑,减小驾驶员的损失风险。
Airbag and steering wheel
安全气囊及方向盘
02.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |