The invention provides a breakage-proof air guide bag and an air bag, and relates to the technical field of passive safety, the breakage-proof air guide bag comprises an air guide bag body, a reinforcing piece is arranged in the air guide bag body, part of the reinforcing piece is sewn and fixed in the air guide bag body, and the reinforcing piece is folded to form a buffer structure; the buffer structure abuts against the outer surface of the gas generator, and a movable end is further reserved on the buffer structure. And when the gas generator extrudes or tears the buffer structure, the movable end enables the buffer structure to generate relative slippage among multiple layers of cloth pieces formed by folding. Through the arrangement of the buffer structure, when the gas generator extrudes or tears the buffer structure, the contact point between the gas generator and the buffer structure continuously changes through relative slippage generated among the multiple layers of cloth pieces, the stress concentration situation is avoided, and therefore the situation that the gas guide bag is broken is avoided; and the whole buffer structure is formed by folding the single-layer reinforcing sheet, so that compared with a breakage-proof structure with multiple layers of reinforcing sheets, the manufacturing cost and the BOM cost are lower.
本申请提供一种防破损导气袋及气囊,涉及被动安全技术领域,其包括导气袋,导气袋内部设有加强片,加强片的部分区域缝制固定于导气袋的内部,加强片通过折叠形成缓冲结构,缓冲结构与气体发生器的外表面相抵且缓冲结构还留有活动端;当气体发生器挤压或者撕扯缓冲结构时,活动端使得缓冲结构通过折叠形成的多层布片之间产生相对滑移。通过设置缓冲结构,使得当气体发生器挤压或者撕扯缓冲结构时,通过多层布片之间产生的相对滑移,使得气体发生器与缓冲结构之间的接触点不断发生变化,避免应力集中的情况发生,从而避免导气袋破裂的情况发生,且整个缓冲结构由单层加强片折叠形成,相较于多层加强片的防破损结构,制造成本和BOM成本更低。
Breakage-proof air guide bag and air bag
防破损导气袋及气囊
2023-05-30
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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