Abstract: The elasto-mechanical chamber is a device for the internal coupling and joining of C-type structural profiles. According to the invention, by securing the open elastic casing of the chamber by means of mechanical pressure, in a firm but not totally rigid manner, the device allows energy to be dissipated to the profile(s) to which it is joined. The elasto-mechanical chamber covers the single elasto-mechanical chamber and the double elasto-mechanical chamber, both of which have a similar design in terms of shape, number of components and action mechanism, and hence the same name. The features of each can be used to create bi-directional connectors and multi-directional connectors that can meet the different connection requirements of different types of structures and physical bodies.