Danas je velika primjena vozila i priključnih sredstava, kako teretnih, tako i poljoprivrednih u razne svrhe obavljanja poslova. Tim radom se njihovi kotači ne namjerno prljaju i izlaze na prometnice. S obzirom na zakon o zabrani iznošenja blata na prometnice važno je očistiti kotače, u suprotnom je kažnjivo. Uzimajući u obzir zakon i problem današnjice u prometu, ideja vodilja je bila napraviti ureĎaj kojemu je svrha čišćenje kotača prije izlaska na prometnice, vodeći se tom idejom krenulo se sa konstruiranjem i proračunom ureĎaja za pranje kotača koji bi omogućio radnicima lakše i brže pranje i čišćenje te ujedno i poštivanje zakona i sigurnosti u prometu. Ideja o ureĎaju je da bude dostupan uvijek i svugdje. Vodeći se prema toj ideji zaključeno je da ureĎaj za pranje mora biti na samom vozilu. Stoga se modelirao ureĎaj te izvršio proračun kako bi se ureĎaj mogao montirati na vozilo a pri tome ne ometati njegovu glavnu namjenu. Kroz završni rad biti će objašnjeno konkretno idejno rješenje jednog prototipa ureĎaja za pranje i čišćenje kotača.

Today, there is a great application of vehicles and connecting means, both freight and agricultural, for various purposes of doing business. With this work, their wheels unintentionally toss, and go to the roads. With regard to the law on prohibition of mud removal on roads, it is important to clean the wheels, otherwise is punishable. Taking into account the law and the problem of today, I started with the idea of a device that was intended to clean the driver before going on the road, taking this idea I started with the conditioning and calculation of the washing machine that would allow the workers easier and quicker washing and cleaning and at the same time respect law. The idea of the device is to always be available everywhere, so I decided that the washing machine had to be on the vehicle itself, so I modeled the device as well and budgeted so that it could be mounted on the vehicle and not hindered its main purpose. Through the final work I will try to explain the concrete conceptual design of a prototype of the washing and cleaning wheel.