| 摘要 |
The invention relates to a joint for grid frameworks. The joint comprises a core (1) having an outer surface (1'), in the form of a spherical cap, provided with radial holes (2), and a planar base (1 "), as well as a first assembly of bars (3) provided at their ends with threaded elements for their coupling in the radial holes (2). The joint additionally incorporates a second assembly of bars (7), with their ends flattened, assembled in a superimposed manner on the planar base (1") of the core (1), with the intermediation of a connection bushing (4, 5) formed by a cylindrical sector (6) that is slightly smaller than the diameter of holes (9) defined in the flattened ends of the second assembly of bars and by at least one conical sector (8) facilitating the penetration of the mentioned connection bushing (4, 5).
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