Button-Mounting Process, Button-Mounting System, and Button-Mounting Upper Die

A process for mounting a button having a mounting opening onto a cloth using a button-mounting member and an upper die, the button-mounting member including a tapered solid axial part with a flat tip, the upper die including a bar-like pin member with a pointed tip and a cylindrical punch surrounding the pin member, the process comprising the steps of:

• (A) after setting the button above the cloth oriented horizontally and the button-mounting member lower the cloth, respectively, lowering the upper die until the button comes into contact with the upper side of the cloth and the tip of the axial part of the button-mounting member contacts the lower side of the cloth;
• (B) while keeping the tip of the axial part of the button-mounting member in contact with the lower side of the cloth, lowering only the pin member until the tip hits against the tip of the axial part to form a pilot bore through the cloth;
• (C) passing the axial part of the button-mounting member through the cloth along the pilot bore, and then through the mounting opening;
• and
• (D) swaging the axial part, which has passed through the cloth and the mounting opening, by the pin member and the punch.