Assembly jig for pins for power transmission chain

An assembly jig for pins, which is used to manufacture a power transmission chain that includes a plurality of links each having front and rear insertion portions through which pins are passed, and a plurality of first pins and a plurality of second pins, wherein each first pin and a corresponding one of the second pins are aligned next to each other in a longitudinal direction of the links, and the first pins and the second pins connect the links, aligned in a chain width direction, to each other such that the front insertion portion of one link corresponds to the rear insertion portion of another link, wherein the first pins and the second pins move while being in rolling contact with respect to each other, so that the links are flexural with respect to each other in a chain length direction, and wherein one of the first pin and the second pin is fixed to the front insertion portion of the one link through press-fitting and is movably fitted in the rear insertion portion of the other link, and the other of the first pin and the second pin is movably fitted in the front insertion portion of the one link and is fixed to the rear insertion portion of the other link through press-fitting,

• the assembly jig comprising
• a jig body in which pin insertion recesses, into which respective pairs of pins are inserted, are aligned at predetermined intervals,
• the assembly jig characterized in that:
• the jig body has urging device installation recesses formed so as to be contiguous with the respective pin insertion recesses;
• and
• in each urging device installation recess, there is arranged an urging device that urges a lower end portion of the pin fitted in the pin insertion recess in a direction perpendicular to an axial direction of the pins.