Ukugqwala kwe-hand lever block hook kuzonciphisa ukuphepha kokusebenza futhi kufinyeze impilo yenkonzo ye-hook.
Ibhulokhi ye-lever block uhlobo lwe-lever block elula ukuyisebenzisa nokuyiphatha.
Thatha indophi yesandla esinamandla yaseJapan njengesibonelo. Ithembele kubhuleki othomathikhi ukubona ukuzikhiya ngokwakho kwewinji yesandla, futhi ukubopha okuzenzakalelayo kwamukela indlela yokukhiya kabili, engeke idale umthelela engalweni yamabhuleki ngaphandle kokunyathela amabhuleki, ngakho-ke ngokuyinhloko siyayethula The Double locking mechanism. Umshini okhiya kabili wakhiwe nge-reel ekhethekile yokugcina ama-windings angeziwe kanye nepuleti lethu eliyingqayizivele lentambo okusetshenzwa kulengwa kulo ukuqinisekisa ukuphepha nokuzinza.
Ukukhethwa kwezilayidi kufanele kuhambisane nezinhlobo zezinto ezizophakanyiswa, izimo zemvelo kanye nezidingo ezithile.
Izibopho zingabasabalalisi abakhethekile bokuphakamisa izinto eseziqediwe. Izindlela ezahlukahlukene zokukhiqiza amandla zingahlukaniswa ngezigaba ezintathu: izibopho ze-lever, izibopho ze-eccentric nezinye izibopho ezihambayo.
