I-car bumper sisixhobo sokhuseleko esifunxa kwaye sinciphise impembelelo yangaphandle kwaye sikhusele umphambili nomva womzimba wemoto. Sisixhobo esenza i-cushioning xa imoto okanye umqhubi ephoqeleka ukuba angqubane. I-plastic bumper yenziwe ngepleyiti yangaphandle, izinto zokunciphisa kunye nomqadi onqamlezileyo. Ipleyiti yangaphandle kunye nezinto zokunciphisa zenziwe ngeplastiki, kwaye umqadi onqamlezileyo ugximfizwe ngeshiti eqengqelekayo ebandayo enobukhulu obuyi-1.5mm ukwenza umsele omile njengo-U; Ipleyiti yangaphandle kunye nezinto zokunciphisa zincamathiselwe kumqadi onqamlezileyo, oqhagamshelwe nomqadi ojikelezayo wesakhelo ngezikrufu kwaye unokususwa nangaliphi na ixesha. Iplastiki esetyenziswa kule bumper yeplastiki ngokubanzi yenziwe ngezinto ze-polyester kunye ne-polypropylene ngokufaka i-injection molding. I-car bumper sisixhobo sokhuseleko esifunxa kwaye sinciphise impembelelo yangaphandle kwaye sikhusele iindawo zangaphambili nangasemva zomzimba wemoto. Kwiminyaka engamashumi amabini eyadlulayo, ii-front bumpers zemoto zazenziwe kakhulu ngezinto zesinyithi. Zazigximfizwe kwintsimbi yetshaneli enobukhulu obungaphezulu kwe-3mm. Umphezulu wawufakwe i-chrome, uqhotyoshelwe okanye udityaniswe ngomqadi wesakhelo esinde, kwaye kwakukho umsantsa omkhulu nomzimba, owawubonakala ngathi yinxalenye eyongezelelweyo. Ngophuhliso lweshishini leemoto, i-automobile bumper, njengesixhobo esibalulekileyo sokhuseleko, ikwasendleleni yokuvelisa izinto ezintsha. Ii-bumpers zangaphambili nezemva zemoto zanamhlanje azigcini nje ngokugcina umsebenzi wokuqala wokukhusela, kodwa zikwalandela ukuhambelana kunye nobunye nomzimba, kwaye zilandela ukukhanya kwazo. Ukuze kufezekiswe le njongo, ii-bumpers zangaphambili nezemva zezithuthi zenziwe ngeplastiki, ebizwa ngokuba yi-plastic bumper. I-plastic bumper yenziwe ngepleyiti yangaphandle, izinto zokuthambisa kunye nomqadi onqamlezileyo. Ipleyiti yangaphandle kunye nezinto ze-buffer zenziwe ngeplastiki, kwaye umqadi onqamlezileyo ugximfizwe ngeshiti eqengqelekayo ebandayo enobukhulu obuyi-1.5mm ukwenza umsele omile njengo-U; Ipleyiti yangaphandle kunye nezinto ze-buffer zinamathele kumqadi onqamlezileyo, oqhagamshelwe nomqadi wesakhelo esinde ngezikrufu kwaye unokususwa nangaliphi na ixesha. Iplastiki esetyenziswa kule bumper yeplastiki ngokubanzi yenziwe ngezinto ze-polyester kunye ne-polypropylene ngokufaka i-injection molding. Kukwakho nohlobo lweplastiki ebizwa ngokuba yinkqubo ye-polycarbonate phesheya, efaka umxube we-alloy kwaye isebenzisa indlela yokubumba i-alloy injection. I-bumper ecutshungulwayo ayinayo nje kuphela i-rigidity enamandla aphezulu, kodwa ikwanazo neenzuzo zokuwelda, kodwa ikwanazo nokusebenza kakuhle kokugquma, kwaye isetyenziswa ngakumbi nangakumbi kwiimoto. I-bumper yeplastiki inamandla, i-rigidity kunye nokuhombisa. Ngokwembono yokhuseleko, inokudlala indima ye-buffer xa kwenzeka ingozi yengozi kwaye ikhusele umzimba wangaphambili nowangasemva. Ngokwembono yembonakalo, inokudityaniswa ngokwemvelo nomzimba kwaye ibe yinto epheleleyo. Ine-hombise elungileyo kwaye ibe yinxalenye ebalulekileyo yokuhombisa inkangeleko yemoto.
