Uxanduva oluphambili lwe-bumper kukukhusela abahambi ngeenyawo: kuba abahambi ngeenyawo bangamaqela abuthathaka, i-bumper yeplastiki inokunciphisa amandla okubetheka emilenzeni yabahambi ngeenyawo, ingakumbi amathole, ngoyilo olufanelekileyo lwebha yangaphambili, inciphise izinga lokwenzakala xa abahambi ngeenyawo betshayiswa.
Okwesibini, isetyenziselwa ukunciphisa ukulahleka kwezixhobo zesithuthi xa kukho isantya esirhabaxa. Ukuba i-bumper ayilwanga kakuhle, umonakalo kwezi zixhobo unokuba mkhulu xa kukho i-crash.
Kutheni iibhampa ziplastiki kwaye zizaliswe yifoam?
Enyanisweni, i-bumper yayiyenziwe ngentsimbi kudala, kodwa kamva kwafunyaniswa ukuba umsebenzi we-bumper kukukhusela abahambi ngeenyawo, ngoko ke kuyinto eqhelekileyo ukutshintsha ibe yiplastiki.
Eminye imiqadi yentsimbi engaqhekekiyo iya kugutyungelwa ngumaleko wefoam, oza kugcwalisa umsantsa phakathi kwe-resin bumper kunye nomqadi wentsimbi ongaqhekekiyo, ukuze i-bumper ingabi "thambileyo" kangako ngaphandle, isiphumo sokwenyani sibe kwisantya esiphantsi kakhulu, amandla amancinci kakhulu, kwaye ingagcinwa ngokuthe ngqo.
Okukhona i-bumper isezantsi, kokukhona ixabiso lokulungisa liphezulu:
Okukhona uyilo lwebhampa luphezulu, kokukhona iindleko zokulungisa ziphantsi, ngokwengxelo ye-IIHS. Iimoto ezininzi ngenxa yoyilo oluphantsi kakhulu lwebhampa, xa ingqubana neSUV, ilori yokuthatha imoto ayisiyondima ye-buffer, umonakalo wezinye iindawo zesithuthi nawo mkhulu.
Iindleko zokulungisa iibhampa zangaphambili ziphezulu kuneendleko zokulungisa iibhampa zangasemva ziphezulu kakhulu kuneendleko zokulungisa iibhampa zangasemva.
Esinye sesokuba i-bumper engaphambili ibandakanya iindawo ezininzi zemoto, ngelixa i-bumper engasemva ibandakanya kuphela izinto ezixabiso liphantsi ezifana nezibane zangasemva, iipayipi zokukhupha umoya kunye neengcango ze-trunk.
Okwesibini, kuba uninzi lweemodeli zenzelwe ukuba zibe sezantsi ngaphambili kwaye zibe phezulu ngasemva, i-bumper engasemva inenzuzo ethile ngokuphakama.
Iibhampa ezithintela umoya ezinamandla aphantsi ziyakwazi ukumelana nokuchaphazeleka, ngelixa iibhampa ezithintela umoya ezinamandla aphezulu zidlala indima yokudlulisela amandla, ukusasazwa kunye nokubopha, kwaye ekugqibeleni zidluliselwa kwezinye izakhiwo zomzimba, zize zixhomekeke kumandla esakhiwo somzimba ukuze zikwazi ukumelana nawo.
IMelika ayithathi i-bumper njengoqwalaselo lokhuseleko: I-IIHS eMelika ayithathi i-bumper njengoqwalaselo lokhuseleko, kodwa njengoncedo lokunciphisa ukulahleka kokungqubana ngesantya esiphantsi. Ke ngoko, uvavanyo lwe-bumper lusekwe kwingcamango yendlela yokunciphisa iindleko zokulahleka kunye nokugcinwa. Kukho iintlobo ezine zovavanyo lwe-IIHS lokungqubana kwe-bumper, oluvavanyo lokungqubana kwangaphambili nangasemva (isantya se-10km/h) kunye novavanyo lokungqubana kwangaphambili nangasemva (isantya se-5km/h).
