Union for knot of space structures (Machine-translation by Google Translate, not legally binding)

摘要

Joint for knot of spatial structures, of those formed by a plurality of structural tubes (1) related in knots (7) provided with threaded housings, characterized by comprising; - an end piece (3) integral with a structural tube (1), - a screw (9) passing through the end piece (3) and having a head (11), a threaded end (12) that plays in the threaded housing of the knot (7), and a knurling (13), - an insertable bushing (8), the outer surface of which is polygonal, provided for mounting under pressure on the knurling (13) of the screw (9) with which it remains integral, - a spring (10) disposed on the screw (9) and whose ends rest on the insertable bushing (8) and on an upper cover (4) arranged against the end piece (3), - a polygonal bushing (5), whose inner surface has two differentiated zones; a cylindrical zone (14) provided to receive the spring (10), and a polygonal zone (15) provided to receive slidably and with shape adjustment the insertable bushing (8), and that in this way allows to ensure the joint rotation of the bushing polygonal (5) and the screw (9). (Machine-translation by Google Translate, not legally binding)