"Ratchet" ndi "kumangirira-pansi" Ndiwo mawu omwe amagwiritsidwa ntchito nthawi zambiri poteteza kapena kumangirira zinthu, makamaka paulendo kapena poletsa kuyenda.
Ratchet ndi chipangizo chamakina chomwe chimalola kusintha kowonjezereka kapena kutseka mbali imodzi. Nthawi zambiri zimakhala ndi giya ndi makina a pawl.
Pankhani yoteteza zinthu, ratchet nthawi zambiri imakhala gawo la dongosolo lomangiriza. Zingwe za ratchet, mwachitsanzo, zimagwiritsa ntchito njira yokhotakhota kuti ikhwime ndi kuteteza lamba mozungulira chinthu.
Makoswe nthawi zambiri amagwiritsidwa ntchito pazinthu zosiyanasiyana, kuyambira pakusunga katundu pamagalimoto ndi ma trailer mpaka kumangirira zinthu zoyendera.
"Kumanga-pansi" ndi liwu lalikulu lomwe limatanthawuza njira iliyonse kapena chipangizo chomwe chimagwiritsidwa ntchito kutetezera kapena kumangiriza chinachake.
Zomangira zimatha kukhala ndi zida kapena zida zosiyanasiyana, monga zomangira, zingwe, zingwe za bungee, kapenanso unyolo, zomwe zimagwiritsidwa ntchito kusunga zinthu motetezeka panthawi yamayendedwe.
Zingwe za ratchet ndi mtundu wa zomangira, monganso zida zina ndi njira zomwe zimagwira ntchito yofananira yosungira zinthu.
Mwachidule, "ratchet" ndi mtundu wina wamakina omwe amagwiritsidwa ntchito nthawi zambiri pamakina omangirira, pomwe "kumangirira-pansi"Ndi liwu lodziwika bwino lomwe limaphatikizapo njira zosiyanasiyana ndi zida zomwe zimagwiritsidwa ntchito poteteza zinthu. Zingwe za ratchet ndi chitsanzo chimodzi chabe cha njira yomangira yomwe imagwiritsa ntchito njira yolumikizira.
