Patent ID: 7757473
Filing Date: 2010-07-20
Classification: B21L,F16G,Y10T

Abstract:
1. A manufacture method for manufacturing a power transmission chain including: a plurality of link plates possessing pin holes and placed in layers in a width-wise direction of the power transmission chain; and a plurality of pin members inserted through the pin holes for interconnecting the plural link plates, the method comprising: retaining first ends of the plural pin members and arranging the plural pin members as if the plural pin members are assembled in the power transmission chain; clamping outer circumferences of the plural pin members by a retainer jig, and locating the retainer jig on a second end side of the plural pin members to define projection portions protruding out of the retainer jig on the second end side of the plural pin members for allowing the projection portions to be inserted into the pin holes of the link plates; and locatably assembling the link plates with the plural pin members by inserting the projection portions into the pin holes of the link plates.