| 摘要 |
The device enables to assemble a prefabricated office desk. A four-cornered tube(1) assembly has two crossed bolt passages(8)(8')(10)(10') and two crossed tool passages(9)(9')(11)(11') at an upper and a lower section. Bolts(12)(12')(13)(13') are inserted into the passages(8)(8')(10)(10') with its heads looking inside and then the tube assembly(1) is inserted into a leg(14) of a four-cornered tube with holes(15)(16)(16') for tool and holes(17)(17')(18)(18') for bolt in upper and lower points. Connecting assemblies(19)(19')(19") are positioned between the leg(14) and another leg and bolts(12)(12')(13)(13') are tightened through upper holes(20)(20')(20") and lower holes(21)(21')(21"). |
