Patent ID: 8979687
Filing Date: 2015-03-17
Classification: F16G,F16H

Abstract:
1. A torque transmission chain that includes: a plurality of links, each link having (i) a front insertion portion and (ii) a rear insertion portion, pins being inserted through the front insertion portion and the rear insertion portion, (iii) a link intermediate pillar portion formed between the front insertion portion and the rear insertion portion, and (iv) a link outline portion which forms an outer surface of the link; and a plurality of first pins and a plurality of second pins, the plurality of first pins and the plurality of second pins are arranged one behind the other and couple the links arranged in a chain widthwise direction such that the front insertion portion of one of the links corresponds to the rear insertion portion of another one of the links, wherein the first pins and the second pins relatively move in rolling contact with each other to thereby allow the links to bend in a longitudinal direction of the links, and each link has lock points that contact with the corresponding first pins and the corresponding second pins to regulate a maximum relative rotation angle between the links, wherein: at least one of the plurality of links has the lock point at each of (a) a front surface of the link outline portion, (b) a rear surface of the link outline portion, (c) a front surface of the link intermediate pillar portion, and (d) a rear surface of the link intermediate pillar portion, and each of allowable maximum relative rotation angles regulated by the lock points of the link outline portion is set so as to be smaller than each of allowable maximum relative rotation angles regulated by the lock points of the link intermediate pillar portion.