NODAL JOINT OF RODS IN A SPATIAL SKELETON Russian patent published in 1996 - IPC

FIELD: joining tubular and rolled rods for creating both non-stressed and pre-stressed spatial rod structures. SUBSTANCE: NODAL joint of rods in a spatial skeleton includes a core comprising interconnected parts, coaxial horizontal rods fixed between core parts, inclined rods and fasteners. The joint id provided with vertical shaped sheets with U-shaped notch originated in the center of the NODAL joint. The notch is directed upwards. Openings are originated in the form of spatial shaped elements of similar size. Notch bases are directed downwards. One pair of horizontal rods is attached to vertical shaped sheet, and another is made in the form of through tube with tensile member passed through. Stopping ledge is provided. The stopping ledge is made in the form of a ridge encircled around the tube, and placed inside U- shaped notch of the vertical shaped sheet. Inclined rods are attached to the spatial shaped sheets. An option with U- shaped notches directed downwards is provided with through tube diameter passed through U-shaped notches. Diameter of the U-shaped notch directed upwards is equal to the diameter of the stopping ledge on the through tube. EFFECT: high efficiency. 2 cl, 3 dwg