| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pulley capable of preventing a rib of a power transmission belt from being damaged when mounting the drive transmission belt. <P>SOLUTION: There is provided a crank pulley 12 mounted on a power transmission mechanism 1 using a low-elastic belt as a power transmission belt 30. An outer periphery thereof is formed with a V-shaped groove 12g which is formed on an inner surface of the power transmission belt 30 and into which a rib 31 is fitted. Flanges 12h, 12k are provided respectively to axial ends of the V-shaped groove 12g. In the flange 12h on an axial one side among these flanges 12h, 12k, a first tapered surface 12m is formed in a part at the V-shaped groove 12g side. An inclination angle α1 of the first tapered surface 12m with respect to a straight line L0 extending perpendicularly to the axial direction is set larger than an inclination angle α0 of the V-shaped groove 12g with respect to the straight line L0. <P>COPYRIGHT: (C)2013,JPO&INPIT |
