Lub tsheb bumper system yog ib feem tseem ceeb ntawm lub tsheb lub cev, tsim ib tug plaub-tiered tiv thaiv system: txheej vaj huam sib luag, tsis txheej, tsoo beam, thiab lub zog- absorbing box. Niaj hnub nimno bumpers feem ntau muaj cov vaj huam sib luag sab nraud, cov khoom siv tsis zoo, cov nqaj sib tsoo, thiab lub zog- nqus lub thawv. Lub vaj huam sib luag sab nrauv yog ua los ntawm PP polypropylene yas, txheej tsis yog honeycomb ua npuas ncauj los yog lub zog- nqus cov qauv, cov nqaj sib tsoo yog ua los ntawm cov hlau lossis txhuas alloy, thiab lub zog- nqus lub thawv yog cov khoom siv hlau sib tsoo. Cov kab ke no absorbs lub zog cuam tshuam thiab tiv thaiv cov khoom hauv tsheb thaum muaj kev sib tsoo. Nws tuaj yeem rov zoo dua tom qab muaj kev sib tsoo me me thiab cuam tshuam rau kev sib tsoo hnyav los xyuas kom cov neeg nyob hauv qhov chaw muaj sia nyob. Nws tsim kuj ua haujlwm zoo nkauj.
Nyob rau hauv qis- kev sib tsoo ceev, nws ua lub luag haujlwm tseem ceeb hauv kev nqus lub zog thiab yuav tsum ua kom tau raws li kev tiv thaiv neeg taug kev. Bumper cov ntaub ntawv tau hloov zuj zus los ntawm hlau mus rau yas. Xyoo 1971, National Highway Traffic Safety Administration (NHTSA) hauv Tebchaws Meskas tau tshaj tawm lub ntiaj teb thawj tus qauv kev tswj hwm lub tsheb bumper tsim. Xyoo 1976, nyob rau hauv cov txheej txheem tswj hwm, cov qauv kev sib tw tau muab faib ua "Phase I Standards" thiab "Phase II Standards." Xyoo 1983, Asmeskas cov kev cai lij choj raug tshem tawm ntxiv. Plastic bumpers tuaj yeem txo cov nqi tsim khoom los ntawm 20% -30% piv rau cov hlau nplaum.