Safety air bag shell

Abstract

The invention relates to the technical field of safety air bags, in particular to a safety air bag shell which comprises a shell body, a front bracket, a rear bracket and a lower bracket. The safety air bag shell is characterized in that the lower bracket comprises a lower bracket plane, a lower bracket folded surface and a lower bracket flanged edge, wherein the lower bracket folded surface and the lower bracket flanged edge are bent downwards along one end of the lower bracket plane; the lower bracket plane is fixed under the shell body, at least one flanged edge is arranged on the lower bracket folded surface and forms a support together with an upper plane and a downwards-bent folded edge, the bottom of the folded edge is connected with the lower bracket folded surface, and a gap is arranged between the flanged edge and the shell body. Compared with the prior art, the invention has the advantages of simple processing, low cost, high efficiency and high accuracy, effectively reduces the dependence on the machining process, contributes to the reduction of cost, decreases connecting points of the brackets and the shell body, saves the procedures and the development of a riveting mould, and also saves the connecting time. The energy-absorbing degree of the safety air bag shell can be regulated through the distance change between the flanged edge and the shell.

Description

[technical field] [0001] The invention relates to the technical field of airbags, in particular to an airbag casing. [Background technique] [0002] At present, most motor vehicles are equipped with airbags. Taking the airbag module on the passenger side as an example, it is usually connected to the instrument panel and the cross member of the body through the bracket under the shell body, usually by riveting or welding. Fix the lower bracket on the shell. Due to the influence of factors such as the vehicle body environment, the layout of the modules cannot usually be placed directly above the beam, so the usual lower bracket cannot play a good supporting effect. At this time, it is often added by adding The thickness of the bracket may be increased by adding more ribs to make up for the strength of the bracket, thereby increasing the material cost and the development cost of the mold. Generally, there are many types of brackets used to install the airbag module. According ...

AI Technical Summary

Problems solved by technology

However, such a design increases the difficulty of mold development and increases the cost of development, and the bracket with better performance is usually softer, and the supporting effect is greatly weakened, and when it vibrates during long-term use, it will cause The bracket is deformed, which will cause the abnormal sound of the airbag module, and more seriously, it will lead to the performance degradation of the airbag module

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