| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress fletching in a power transmission chain.SOLUTION: When viewing a chain linear region from a chain width direction, a flat part 18 of a first pin 3 of a chain extends in an inclined direction D. A virtual line L1 passing through a center position of a height h of the first pin 3 in the inclined direction D and orthogonal to the inclined direction D intersects with the flat part 18, and thereby a cross point P0 is formed. A virtual line L2 passing through a contact part A0 and extending in a chain progressing direction X intersects with the flat part 18 between the cross point P0 and one end P1 of the flat part 18, and thereby a cross point P2 is formed. Related to the inclined direction D, when a distance between the cross point P0 and the cross point P2 is set as h1, and a distance between the cross point P2 and the one end P1 of the flat part 18 is set as h2, h1≤h2 is satisfied. The one end P1 of the flat part 18 is placed in a position being the inside which is bent more than the other end at chain bending.</p> |
