jikuzuri　軸吊

Also written 軸釣, 軸摺. Pivot hinge. A metal covered wooden-core pivot inserted into a socket *jikuana 軸穴 to form a revolving hinge. It often has an extension at each end, on the top and bottom of the door. This projecting part forms the pivot. Jikuzuri is especially common on wooden plank doors *itakarado 板唐戸 and paneled wooden doors *sangarado 桟唐戸.