Abstract: A feeding and fastening device for a coin-shaped fastener and comprising: a punch tool; a feeding device configured to feed the fastener one at a time; a hollow pillar-shaped portion below the punch tool; a holding portion to temporarily hold the fastener fed though a side surface thereof and to release the fastener when the punch tool pushes down on that fastener; a part passage route portion below the holding portion for guiding the fastener downward in a vertical orientation by means of a cross section with a width that prevents inversion; a guide portion below the passage route portion guides the fastener from the vertical orientation to a horizontal orientation; and a fastening portion below the guide portion receives the fastener in the vertical orientation and locates the fastener above the workpiece until struck by the punch tool.

Abstract: A feeding and fastening device for a coin-shaped fastener and comprising: a punch tool; a feeding device configured to feed the fastener one at a time; a hollow pillar-shaped portion below the punch tool; a holding portion to temporarily hold the fastener fed though a side surface thereof and to release the fastener when the punch tool pushes down on that fastener; a part passage route portion below the holding portion for guiding the fastener downward in a vertical orientation by means of a cross section with a width that prevents inversion; a guide portion below the passage route portion guides the fastener from the vertical orientation to a horizontal orientation; and a fastening portion below the guide portion receives the fastener in the vertical orientation and locates the fastener above the workpiece until struck by the punch tool.

Abstract: A collet to feed and fasten cylindrical rivets includes an inlet unit that accepts and supports the rivet, a first feeding unit connected from the inlet unit and configured to feed the rivet, a second feeding unit connected to the first feeding unit opposite to the inlet unit and configured to feed the rivet, and an outlet unit that is connected to the second feeding unit opposite to the first feeding unit and supports the rivet that is fed to it. The inlet unit and the first feeding unit have at least two first slots at opposite angles, the second feeding unit and the outlet unit have more of second slots than the first slots, and when the rivet enters the first feeding unit, the second slots are closed by the opening of the first slots.

Abstract: A collet to feed and fasten cylindrical rivets includes an inlet unit that accepts and supports the rivet, a first feeding unit connected from the inlet unit and configured to feed the rivet, a second feeding unit connected to the first feeding unit opposite to the inlet unit and configured to feed the rivet, and an outlet unit that is connected to the second feeding unit opposite to the first feeding unit and supports the rivet that is fed to it. The inlet unit and the first feeding unit have at least two first slots at opposite angles, the second feeding unit and the outlet unit have more of second slots than the first slots , and when the rivet enters the first feeding unit, the second slots are closed by the opening of the first slots.