| 摘要 |
ISSUE: A chain tensioning device with a short center distance that can impart a tensioning force to a plurality of chain spans at the same time with a simple structure. MEANS OF RESOLUTION: A tensioning device 1 includes a first tensioner arm 2 having an arm part 20 disposed outside a chain span C1 and a flange part 21 integrated with the arm part 20 and projecting toward the internal space between chain spans C1, C2, a second tensioner arm 3 having an arm part 30 disposed outside a chain span C2 and a flange part 31 integrated with the arm part 30, projecting toward the internal space between chain spans C1, C2, and overlapping the flange part 21, a linking part pivotably linking the flange parts 21, 31 at the overlapping portion of the flange parts 21, 31, and a tensioner 4 urging the first tensioner arm 2 toward the chain span C1. |
