Hinge, izwi kandi nka hinge, ni ibikoresho bya mashini bikoreshwa muguhuza imibiri ibiri ikomeye no kwemerera kuzenguruka hagati yabo.Hinge irashobora kuba igizwe nibintu byimukanwa, cyangwa irashobora kuba igizwe nibintu bishobora kugundwa.Impeta zashyizwe cyane cyane kumiryango no mumadirishya, kandi impeta zishyirwa kumabati.Ukurikije ibyiciro, bigabanijwemo cyane cyane ibyuma bidafite ingese hamwe nicyuma.Kugirango abantu barusheho kwinezeza, hagaragaye hydraulic hinges (nanone bita damping hinges).Ikiranga ni ukuzana imikorere ya buffer mugihe umuryango winama y'abaminisitiri ufunze, bigabanya urusaku rwatewe no kugongana numubiri winama y'abaminisitiri iyo umuryango winama winjiye.