NODAL JOINT OF SPACIAL FRAME RODS Russian patent published in 2013 - IPC E04B1/58 

FIELD: construction.

SUBSTANCE: nodal joint comprises a collapsible nodal element, made of joined four-face gussets with holes in walls, to which rod ends are fixed by bolts. The joint comprises a hollow metal core of square section arranged in the centre of the nodal joint and a combining gusset. Each of gussets is made with a shelf and vertical walls, two of which are mutually perpendicular, and the wall located between them is connected with the core wall. Between adjacent walls of the gussets there is a gap, in which there is a tip of a rod element. The core is equipped with a central bolt, rigidly fixed with the help of a pad in its base with a protruding end. The core base is arranged in the nodal element with a ledge in respect to the external face of the gusset shelf. On the protruding end of the central bolt there is a disc pad adjoining the core base and equipped with holes that match holes in the shelves of gussets in their location. Between the disc pad and the shelves of gussets there is a gap, where tips are installed and fixed.

EFFECT: higher joint reliability.

3 cl, 9 dwg