Igikoresho gitanga uburyo bwo kurinda imodoka cyangwa umushoferi mu gihe cy'impanuka.
Mu myaka makumyabiri ishize, amabumper y'imbere n'inyuma y'imodoka yari akozwe ahanini mu byuma. Yashyizwe mu cyuma gifite ishusho ya U gifite ubugari bwa mm 3. Ubuso bwasizwe na chrome kandi bugashyirwa hamwe n'umurambararo w'umukara. Hamwe n'iterambere ry'inganda z'imodoka, bumper y'imodoka nk'igikoresho cy'ingenzi cy'umutekano nayo iri mu nzira yo guhanga udushya. Amabumper y'imbere n'inyuma y'imodoka muri iki gihe, uretse gukomeza imikorere yo kurinda mbere, ariko kandi no gukurikirana ubwumvikane n'ubumwe n'imiterere y'umubiri, gushaka ubworoheje bwayo. Kugira ngo iyi ntego igerweho, amabumper y'imbere n'inyuma y'imodoka akozwe muri pulasitiki, izwi nka plastic bumpers. Bumper ni igikoresho cy'umutekano cyinjiza kandi cyoroshya ingaruka z'inyuma kandi kikarinda imbere n'inyuma by'umubiri w'imodoka. Mu myaka makumyabiri ishize, amabumper y'imbere n'inyuma y'imodoka ahanini yari akozwe mu byuma. Yashyizwe mu cyuma gifite ubugari bwa mm 3. Ubuso bwasizwe na chrome kandi bugashyirwa hamwe n'umurambararo w'umukara. Bitewe n’iterambere ry’inganda z’imodoka, bumper y’imodoka nk’igikoresho cy’ingenzi mu mutekano iri mu nzira yo guhanga udushya. Bumper y’imodoka yo muri iki gihe, usibye gukomeza imikorere yayo yo kurinda, ahubwo no gukurikirana ubwumvikane n’ubumwe n’imiterere y’umubiri, iharanira ubworoheje bwayo. Kugira ngo iyi ntego igerweho, bumper y’imbere n’iy’inyuma y’imodoka ikozwe muri pulasitiki, izwi nka bumpers za pulasitiki. Bumper ya pulasitiki igizwe n’ibice bitatu, nk’isahani y’inyuma, ibikoresho byo gupfuka n’umurambararo. Isahani y’inyuma n’ibikoresho byo gupfuka bikozwe muri pulasitiki, kandi umurambararo ukozwe mu rupapuro rukonje ruzingiye rufite ubugari bwa mm 1.5 kandi rushyirwa mu mwobo ufite ishusho ya U; Isahani y’inyuma n’ibikoresho byo gupfuka bifatanye n’umurambararo, ufatanye na screw y’umurambararo kandi ushobora gukurwaho igihe icyo ari cyo cyose. Ubu bwoko bwa bumper ya pulasitiki bukoresha pulasitiki, ahanini bukoresha polyester na polypropylene by’ibikoresho bibiri, hakoreshejwe uburyo bwo gushushanya. Mu mahanga hari ubwoko bwa pulasitiki yitwa polycarbon ester, kwinjira mu buryo bw'ibumba, uburyo bwo gushushanya inshinge z'ibumba, gutunganya bumper ntabwo gusa ifite imbaraga nyinshi, ahubwo inafite ibyiza byo gusudira, kandi imikorere yo gusiga ni myiza, ingano y'imashini nyinshi mu modoka. Bumper ya pulasitiki ifite imbaraga, gukomera no gushariza, mu rwego rw'umutekano, impanuka y'imodoka ishobora kugira uruhare mu gufunga, kurinda umubiri w'imodoka y'imbere n'iy'inyuma, uhereye ku miterere yayo, ishobora guhuzwa n'umubiri mu buryo busanzwe, ihuzwa n'ikintu cyose, ifite imitako myiza, ikaba igice cy'ingenzi cy'imitako y'imodoka.
