| 摘要 |
PURPOSE:To restrain vibration caused at the time of power transmission and to prevent the frictional engagement of a belt with a pulley from increasing needlessly by providing a chain back warp preventing mechanism for preventing a chain from bending in such a manner as to give inwards. CONSTITUTION:Plural outer plates 1A, 1B and inner plates 2A, 2B are alternately disposed, and the overlapping portions of the mutual end portions are rotatably coupled to each other through coupling pins 3 to form an endless chain 4 as the whole. A trapezoidal black 5 engaged with a V-groove of a V-pulley is supported on each plate. A chain back warp preventing mechanism A for preventing a chain 4 from bending in such a manner as to give inwards, for example, comprises a spacer 8 projected between the adjacent outer plates 1A, 1B. |
