air bag


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air bag

A safety device installed in passenger cars and other vehicles (including helicopters and motorcycles) which consists of a rubberised nylon bag that inflates rapidly in frontal impacts, and, in an increasing number of vehicles, in side impacts. Dashboard air bags are standard equipment in personal vehicles in the US; side impact bags are usually “factory options”.
Mechanism Airbags detonate by spark ignition of sodium azide, nitrogen gas, ash, and NaOH.
Pros Estimated 6,377 lives saved from 1990 to 2000 (US); airbags reduce traffic fatalities by ±6.5%, assuming that a shoulder belt is worn.
Cons Skin abrasions, hearing loss due to loud (165-175 dB)deployment explosion, head injuries, eye damage (chemical keratitis, photophobia related to intraocular deposition of powder, ocular contusions), broken nose and upper extremities, burns due to hot gases, and death (which peaked at 53 in 1997, with a total of 175 between 1990 and 2000, per US National Highway Traffic Safety Administration). Air bags may deploy during rescue efforts by emergency personnel.
Causes of death Decapitation (infants, especially in rear facing seats), injuries including aortic transection; at highest risk are infants and children under age 13 years, those under 160 cm in height, and the elderly.

air bag

A balloon, positioned in a car steering wheel or dashboard, that inflates rapidly triggered by a deceleration sensor. A sudden chemical reaction generates nitrogen that, very briefly, inflates the balloon. The latter almost immediately deflates.
References in periodicals archive ?
The settlement amount is more than half of what the plaintiffs class believes it could have won at trial if damages were calculated based on how much the automakers paid for and marked up Takata air bags, according to court documents.
The recalls are nationwide for driver's side air bags. There were separate recalls announced last year for passenger air bags in high-humidity areas including Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico and the U.S.
This department is focused on protecting the American public from these defective air bags and at getting to the bottom of how they came to be included in millions of vehicles on U.S.
Toyota Motor Corp said on Thursday it would recall 57,000 vehicles globally to replace potentially deadly air bags made by Takata Corp, as a safety crisis around the Japanese auto parts maker looks far from being contained.
On Thursday, lawmakers will hold a hearing to question Friedman, as well as representatives from Takata and the automakers, about their response to the air bag problem.
In each case, the air bags are made by Japanese supplier Takata.
Additional safety features include: * Standard head curtain side air bags with rollover protection for all seating rows * The roof-mounted head curtain air bags include design features that provide increased rollover protection and occupant containment.
The company further said that the power steering assist function could also become inoperable, if the air bag control module is damaged, making the vehicles difficult to turn.
Invista established its air bag fiber presence in this location in 2008 to manufacture super-high-tenacity nylon 6.6 fibers for automotive air bag applications.
Volvo Cars Japan launched on Tuesday the all-new Volvo V40 hatchback in Japan, featuring the world's first air bag designed to protect pedestrians.
It was also mentioned that according to the company, a leak from the air-conditioning and heating system might cause the Occupant Restraint Control module to fail, which could lead to an inadvertent air bag deployment without warning or the illumination of the air bag warning light.
Despite the possible reduction in mortality with air bag use, concern still remains that air bag deployment may also inflict injury during an MVC.