Aosite, kusukela 1993
Uma kukhulunywa ngokuqina, i-flatHingeIt idlula ihinji kamama nengane. Nakuba ubude behinji yomama nengane bufana nobehinji evamile, ukugqagqana kwezingcezu zayo zangaphakathi nezangaphandle kunciphisa ikhasi lesiqephu sangaphakathi, kulenze libe lincane eliqinile uma liqhathaniswa nehinji ye-casement enamakhasi amabili aphelele. Ngaphezu kwalokho, ukuzungezisa namandla okuthwala umthwalo wehinji kuncike kakhulu kwiringi yayo ephakathi. Ukumelana nokugqoka kwendandatho ephakathi kuhambisana ngokuqondile nokuvalwa kwe-shaft ephakathi, okunquma umthamo wokuthwala umthwalo. Kulokhu, i-casement hinge enezindandatho ezine eziphakathi idlula i-hinge yomama nengane enezindandatho ezimbili kuphela, okuchaza ukuqina okuphansi kokugcina.
Kodwa-ke, mayelana nokusebenziseka kalula nokuvumelana nezicabha, ihinji yomama nengane ngokungangabazeki inenzuzo enkulu. Ukusebenziseka kwayo kalula yindawo yayo enkulu yokuthengisa. Ngokungafani ne-hinge eyisicaba, ayidingi i-slotting ngesikhathi sokufakwa, okuholela ekwehliseni izindleko nokunciphisa umonakalo emnyango. Lokhu kuthuthukisa kakhulu ubuhle bomnyango. Ukwengeza, ezinye izicabha zokhuni ezingaqinile noma izicabha zokhuni ezingenalutho azikwazi ukumelana ne-slotting, okuholela ezinkingeni zekhwalithi ezifana nokuhlukaniswa kweqabunga lomnyango noma ukubhobozwa. Noma kunjalo, idizayini eyingqayizivele yehinge kamama nengane iqeda isidingo sokubeka, ukuthuthukisa ubuqotho bomnyango futhi ikhulise ukusebenza kwehinge ezinhlotsheni ezahlukene zeminyango yangaphakathi.
Kafushane, kuyilapho i-flatHingeIt iphumelela ngokuhlala isikhathi eside ngenxa yamakhasi ayo aphelele namaringi amaningi aphakathi nendawo, ihinge yomama nengane ikhanya ngendlela elula futhi evumelana nezimo ezinhlotsheni zeminyango ehlukene. Womabili amahinge anamandla awo ahlukile kanye nobuthakathaka, futhi ukukhetha phakathi kwawo kuncike ezidingweni zomuntu ngamunye kanye nezinto eziza kuqala.
I-Kaiping hinge kanye nehinge yomzali nengane zombili zinezici zazo ezihlukile kanye nezinzuzo. Ukukhetha phakathi kwakho kokubili ekugcineni kuncike ezidingweni ezithile kanye nezintandokazi zomsebenzisi. Abanye bangase bathande ukuqina nokuqina kwehinge ye-Kaiping, kuyilapho abanye bangase bathande ukunethezeka nedizayini yokonga isikhala yehinji yomzali nengane. Kunconywa ukucabangela ngokucophelela izinzuzo nezingozi zohlobo ngalunye ngaphambi kokwenza isinqumo.