Abstract: Disclosed is a tube connector for an assembly toy, which includes a cylindrical body having upper and lower horizontal surfaces, a circular hole perforated through the center of the body perpendicular to the horizontal surfaces for insertion of a tube, and at least one coupling rib integrally formed around the body at the level of one of the horizontal surfaces. As a tube is coupled to the coupling rib, assembly of various shapes of three-dimensional toys is possible.

Abstract: Disclosed is a tube connector for an assembly toy, which includes a cylindrical body having upper and lower horizontal surfaces, a circular hole perforated through the center of the body perpendicular to the horizontal surfaces for insertion of a tube, and at least one coupling rib integrally formed around the body at the level of one of the horizontal surfaces. As a tube is coupled to the coupling rib, assembly of various shapes of three-dimensional toys is possible.

Abstract: Disclosed is a tube connector for an assembly toy, which includes a cylindrical body having upper and lower horizontal surfaces, a circular hole perforated through the center of the body perpendicular to the horizontal surfaces for insertion of a tube, and at least one coupling rib integrally formed around the body at the level of one of the horizontal surfaces. As a tube is coupled to the coupling rib, assembly of various shapes of three-dimensional toys is possible. In addition, disclosed is a tube connector for an assembly toy, which includes a semispherical body having a horizontal bottom surface, a circular hole perforated in the center of the body perpendicular to the bottom surface for insertion of a tube, and at least one insertion groove and plural coupling holes formed in the body. A tube connector coupling rib is fixedly inserted through the insertion groove or the coupling hole.