rear head airbag in the airbag system is mounted at a rear portion of the roof to protect the passive safety of the rear seat passengers.
1. Airbag rear head noun
Head called side curtain air bags, pop-covered window at the time of collision, in order to achieve the effect of occupant protection. In general, most of the front and rear head airbags are through type, only the front head airbags only a few brands. Rear head airbag in the airbag system is mounted at a rear portion of the roof to protect the passive safety of the rear seat passengers. Note that only the air bag and seat belt fit together so that passengers can get the best protection in a major accident.
curtain airbag (CAB) is an airbag system installed on the top of the car, the vehicle occupant protection for the head when the vehicle side collision. CAB component assembly is composed of a bag, cloth bag, the gas generator, the composition of the gas generator stents and catheters.
2. The chemistry of the airbag
There sodium azide (of NaN3) or ammonium nitrate (of NH4NO3) like in automobile airbag material. When subjected to crashing car at high speeds, these substances decomposition reaction occurs rapidly, a large amount of gas, the airbag is filled.
airbag as a passive safety devices, protective effect has been widely recognized that people first patent related to airbag began in 1958. In 1970 alone the manufacturers started to develop can reduce collisions in the degree of injury of a passenger airbag; in the 1980s, automobile manufacturers began fitted with airbags; into the 1990s, put the amount of airbags rose sharply; while entering the new century later, in general it is equipped with airbags on cars. Since airbags available, it has saved many lives. Studies have shown that frontal air bag device car crash, the driver of mortality, big cars reduced by 30 percentage midsize sedan by 11 percentage small cars reduced by 20 percentage.