Aosite, kuba 1993
Xa kuziwa ekomeleleni, i-flatHingeIt yodlula ihenjisi kamama nomntwana. Nangona ubude behinge yomama womntwana bufana nehenjisi eqhelekileyo, ukugqithelana kweziqwenga zayo zangaphakathi nangaphandle kunciphisa iphepha leqhekeza elingaphakathi, lenze ukuba lingabi namandla xa lithelekiswa nehenjisi yecasement enamaphepha amabini apheleleyo. Ngaphaya koko, ukujikeleza kunye nomthamo wokuthwala umthwalo wehenjisi ixhomekeke kakhulu kwiringi yayo ephakathi. Ukuxhatshazwa kokugqoka kwendandatho ephakathi kuhambelana ngokuthe ngqo nokuvalwa kwe-shaft ephakathi, emisela umthamo wokuthwala umthwalo. Kule nkalo, i-casement hinge enamakhonkco amane aphakathi idlula i-hinge yomntwana kunye namakhonkco amabini kuphela, echaza ukuqina okuphantsi kokugqibela.
Nangona kunjalo, malunga nokulula kunye nokuziqhelanisa neengcango, ihenjisi yomama nomntwana ngokungathandabuzekiyo inenzuzo enkulu. Ukusebenziseka kwayo ngokulula yeyona ndawo inkulu yokuthengisa. Ngokungafaniyo nehinge ecaba, ayifuni i-slotting ngexesha lofakelo, ekhokelela ekunciphiseni iindleko kunye nokunciphisa umonakalo emnyango. Oku kwandisa kakhulu ubuhle bomnyango. Ukongeza, ezinye iingcango zamaplanga ezingaqinanga okanye iingcango zokhuni ezivulekileyo azikwazi ukumelana ne-slotting, ekhokelela kwimiba esemgangathweni efana nokuqhawulwa kwamagqabi omnyango okanye ukugqobhoza. Nangona kunjalo, uyilo olukhethekileyo lwehinji yomama womntwana luphelisa imfuno yokubeka, ukuphucula ingqibelelo yomnyango kunye nokwandisa ukusetyenziswa kwehinge kwiintlobo ezahlukeneyo zeengcango zangaphakathi.
Isishwankathelo, ngelixa i-flatHingeIt iphumelela ngokubhekiselele kwisigxina ngenxa yamaphepha ayo apheleleyo kunye namakhonkco amaninzi aphakathi, i-hinge yomntwana yomama ikhanya ngokufanelekileyo kunye nokulungelelaniswa kweentlobo ezahlukeneyo zeminyango. Zombini iihenjisi zinamandla awodwa kunye nobuthathaka, kwaye ukukhetha phakathi kwazo kuxhomekeke kwiimfuno zomntu ngamnye kunye nezinto eziphambili.
Ihinge yeKaiping kunye nehenjisi yomzali-nomntwana zombini zineempawu zazo ezizodwa kunye neenzuzo. Ukhetho phakathi kwezi zibini ekugqibeleni luxhomekeke kwiimfuno ezithile kunye nezinto ezikhethwa ngumsebenzisi. Abanye banokukhetha ukuqina kunye nozinzo lwehinge ye-Kaiping, ngelixa abanye banokuthanda lula kunye noyilo olugcina indawo lwehenjisi yomzali nomntwana. Kucetyiswa ukuba uqwalasele ngokucophelela iinzuzo kunye neengxaki zohlobo ngalunye ngaphambi kokuba wenze isigqibo.