Moderncarscanhaveupto 10 airbags,includingthedriver,passenger,seatbelt,sidecurtains
and even for the pedestrians nearly to reduce theimpact of the car hit.
Theseatbeltscomeunderthetypeofpassivesafetydevice.Thesafetyinthevehicleisoftwo
kindsactive and passive safety. The maindifference iswhetherornotthe involvementof
passengersarerequiredtoenablethem.Letustakeanexampleofseatbelts,fortheseatbelts
toworkthepassengersshouldact.Hence,seatbeltscomeunderactivesafety;ontheother
hand,whichairbagwillinflateduringanaccidentisnotinthehandsofthepassengers;thus,it
comes under passive protection.
HISTORY OF AIRBAGS,
J.HetricandW.Llindererwere thefirsttofilethepatentsforairbags.Theairbagsthatthey
designedwereinflatedwiththehelpofacompressedairsystembyaspringorbythecommand
ofthedriver.Lateronseveraloccasions,itwasfoundthatsuchamethodofinflationofthe
airbagstooktime;thus,anewmethodwastobedeveloped.Hetricwasanengineerandalsoa
memberoftheUSNavywhodreamtaboutdesigningsomethingthatcouldensurehisfamily’s
safetyonroads.Butcompaniesneverwelcomedhisideaduringthattime,andnowpeople
consider his invention to be valuable.
Inthemid-twentiethcentury,aJapaneseengineerdevelopedanairbagsystemthatwasway
differentwhencomparedtotraditionalmethods.Wheretraditionalmethodsusedmechanical