Patent ID: 8096023

Claim:
A button assembly to be used on fabric in a clothing item, the button assembly being composed of three cooperating elements comprising: a rivet ( 1 ) positioned on the back of the clothing item and provided with a circular head ( 1 a ), from which a pin ( 1 b ) protrudes, a cylindrical joint with an enlarged head ( 2 ) mounted on the front of the clothing item and provided with a corresponding housing ( 2 a ), in central position on the back of the enlarged head, inside which said pin ( 1 b ) of the rivet is engaged and held, in a relationship of irreversible coupling, and a proper button ( 3 ) provided with a shank ( 3 a ) which centrally protrudes from the back of the button, said shank ( 3 a ) of the proper button is without an axial hole, and said cylindrical joint ( 2 ) has a front having a central cylindrical conduit ( 2 b ) formed thereon, said cylindrical conduit receives said shank ( 3 a ) of the proper button ( 3 ) wherein said removable coupling of the shank ( 3 a ) of the proper button ( 3 ) inside the front cylindrical conduit ( 2 b ) of the joint ( 2 ) is formed by coupling between a thread on the external walls of the shank ( 3 a ) and a cooperating thread on the internal walls of the conduit ( 2 b ).