Automotive safety air curtain

Abstract

The invention discloses an automotive safety air curtain, which comprises an inflatable airbag for providing lateral protection and a gas generating device for inflating the airbag; the airbag is provided with an inflating part axially connected with the gas generating device; the inflating part comprises an outer layer made of textile material and fixed on the airbag by sewing, and a gas guide part which is in gas communication with the inflating part and guides the inflating gas into the airbag in the longitudinal direction; and the gas generating device is a firework type gas generating device. The inflating part of the air curtain is also provided with an inner layer which encircles the gas outlet of the gas generating device, the inner layer encircles the gas outlet at the upper middle part of the gas generating device, and a gas passage communicated with the gas guide part is formed at the lower gas outlet. The air curtain has the characteristics of light weight, short corresponding time and convenience for installation and fixation.

Description

technical field [0001] The invention relates to a passive safety device for automobiles, in particular to an inflatable safety air curtain capable of protecting the head of an occupant when a side collision occurs. Background technique [0002] Side air curtains for automobiles provide protection for occupants in the event of a side collision, especially for the protection of the head. The air curtain in the prior art is arranged above the door along the longitudinal direction of the door. At the same time, in order to inflate the soft airbag in time and provide protection for it to expand from top to bottom, the gas generating device for inflating the airbag body needs to be located at a relatively high level. The height of the internal fixed arrangement, such as arranged in the middle or rear of the door. [0003] However, because the above-mentioned regional space is relatively small and there is no fixed plane with a relatively large area, it is difficult to accommodate...

AI Technical Summary

Problems solved by technology

[0003] However, because the above-mentioned regional space is relatively small and there is no fixed plane with a relatively large area, it is difficult to accommodate and fix a large-volume gas generating device; There will be a certain amount of vibration, and more reliable installation and fixation is required, usually in the form of double fixation for fixing both ends; at the same time, in order to obtain enough gas, a certain amount of volume must also be ensured in the gas generating device

[0004] Defects in the prior art limit the selection of gas generators with large gas capacity, and the size of the airbags that provide safety is limited accordingly; with the improvement of automobile emission requirements, light body parts are also required correspondingly; at the same time, the body structure Large space, streamlined and aesthetic trend, the space provided for the gas generating device will become smaller and smaller

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