Patent ID: 7419325

Claim:
A tube assembling device for erecting two- or three-dimensional rigid or elastic structures, comprising: plural flexible hubs; and plural hub-carriers, said hubs and hub-carriers being connectable to tubes to be assembled and said hubs being attachable to said hub-carriers, said plural flexible hubs each comprising: an axial part with a hole in a middle thereof; flexible tongues extending radially from said axial part and having a narrow part in a middle of their length; and radial rings having catching teeth, said catching teeth being directed toward an axis of the hub, said flexible tongues being insertable inside tubes to be assembled, said flexible tongues being one of folded at their narrow section and unfolded, links of a structure to be assembled are fixable at a base of said catching teeth, said hub-carriers each comprising: two pairs of half rings, one posterior pair of half rings and one anterior pair of half rings linked by four connecting lugs, with: two pairs of half rings, comprising, one posterior pair of half rings and one anterior pair of half rings, said two pairs of half rings linked by four connecting lugs, at least one pair of tongues extending from one of the pairs of half rings and pointing in a direction of the other of the pair of half rings, so that when a tube is inserted into the hub-carrier either said pair of tongues remain outside the tube and positioning of said hub-carrier is made all along the tube, which is slightly compressed between the pair of tongues, or one tongue of said pair of tongues is inserted inside the tube and positioning of the hub-carrier occurs at an end of the tube.