METHOD AND DEVICE FOR PRODUCING MEMBER TO BE WOUND, DEVICE FOR MEASURING CIRCUMFERENTIAL LENGTH OF MEMBER TO BE WOUND, AND DEVICE FOR APPLYING PRETENSION

摘要

[PROBLEMS] A method and device for producing a power transmission pin, in which, in applying appropriate residual compressing stress to a link by increased pretension force, damage to the pin can be prevented. [MEANS FOR SOLVING PROBLEMS] The device for producing a power transmission pin has a pretension force-applying device (31) having a pretension-applying first pulley (32) over which an endless chain (1) is passed and also has a pretension-applying second pulley (33). Opposed sheave surfaces (32a, 33a) of each pretension-applying pulley (32, 33) have a concaved shape corresponding to convex curved sections (14a) of the end faces of the pin (14).