Patent ID: 8733076

Claim:
A method of assembling a torque transmission chain that has a plurality of links each having a pin insertion portion through which a pin is inserted and a plurality of pins that couple the links arranged in a chain widthwise direction, wherein the links have at least two pitch lengths, and the links having different pitch lengths are randomly arranged, comprising: a step of manufacturing split pieces of the chain in such a manner that a desired number of pins are held by a linear pin holding jig and a desired number of the links are press-fitted to the pins; a step of linearly arranging the split pieces so as to overlap split piece coupling links each arranged at any one of both ends of each of the split pieces; a step of inserting the pin through the overlapped split piece coupling links; and a step of pulling both ends of a whole of the plurality of split pieces coupled to each other via the split piece coupling links to thereby fix the pin to a pin fixing portion of the split piece coupling links.