the lever plates 1 the nozzle shaft 2 a of the nozzle vane 2 is fixed a nozzle plate 6 of an annular shape is connected to the nozzle mount 5 by a plurality of nozzle supports 61 in the variable nozzle mechanism as illustrated in fig2 b the lever plate 1 is arranged on an inner side in the axial direction on the compressor housing 31 side in fig1 and between a side face of the lever plate 1 and a side face of the nozzle mount 5 the drive ring 3 is arranged in the state where the drive ring 3 the lever plate 1 and the nozzle mount 5 are arranged next to one another in the axial direction the connection pin 10 is formed integrally with a base material by pressurizing one side face of each of the lever plates 1 by a press machine so that a rectangular depression 10 a is formed on the side face and a rectangular protrusion is formed on the other side face by extrusion the drive ring 3 of the variable nozzle mechanism 100 which is formed in the above manner needs to be retained with respective appropriate clearances between the nozzle mount 5 and the flange portion 20 a of the nail pin 20 and between the inner peripheral surface of the drive ring 3 and the outer peripheral surface of the guide part 5 a if the clearance is greater than a specified value the drive ring 3 rocks in the axial direction of the nozzle mount 5 this can result in one side hitting of a thrust direction end of a sliding face of the drive ring 3 against.