Aosite, txij 1993
Los ntawm cov duab, nws tuaj yeem muab faib ua: pob khawm ntawm sab hauv (los yog nkhaus loj, nkhaus loj) ntawm tag nrho lub hau (los yog caj npab ncaj, ncaj khoov) thiab ib nrab npog (los yog nkhaus caj npab, nruab nrab khoov) yog txuas nrog kho cov ntsia hlau, uas tuaj yeem kho qhov siab thiab tuab ntawm sab sauv, qis, sab laug thiab txoj cai kho daim hlau. Qhov kev ncua deb ntawm ob lub ntsia hlau kho qhov ntawm sab uas lub qhov yog drilled feem ntau yog 32 hli, thiab qhov deb ntawm txoj kab uas hla sab thiab ob sab ntawm lub phaj yog 4 hli.
Tej uas yog: &26, & 35. Muaj detachable directional hinges thiab non-detachable directional hinges.
Pob khawm lub cev qauv
1. Ontology: feem ntau muaj feem xyuam nrog cov qhov rooj uas yuav tsum tau them;
2. Base: lub luag haujlwm tseem ceeb yog kho thiab xauv lub qhov rooj vaj huam sib luag rau lub txee lub cev;
3. Hlau taub hau: Lub luag haujlwm tseem ceeb ntawm lub taub hau hlau yog kho lub qhov rooj vaj huam sib luag.
American pob khawm
U.S. hinges raug ntsia rau hauv ib txoj kev tshwj xeeb. Lub hauv paus ib feem ntawm lub pob khawm yog tsau rau ntawm lub phaj sealing ruaj rau tib lub dav hlau raws li lub qhov rooj vaj huam sib luag. Nws yog feem ntau siv los siv cov khoom siv hauv kab ua cov khoom kaum, thiab qee qhov ntawm cov txee yog tsau sealing daim hlau.