| 摘要 |
<p>PROBLEM TO BE SOLVED: To downsize a V-belt type continuously variable transmission which changes the speed of a driven pulley with changes of a winding diameter of a V-belt due to changes of the groove width of a driving pulley and the driven pulley.SOLUTION: A driving pulley 20 and a driven pulley 30 around which a V-belt 40 are laid, are respectively formed by pairs of opposite pulleys 21 and 31. At least one side pulleys of the pairs of the opposite pulleys 21 and 31 are made to be moving pulleys capable of moving in an axial direction, and the moving pulleys are energized toward the opposite pulleys by coil springs 24 and 34. Between the pair of the opposite pulleys 21 in the driving pulley 20, a groove width adjusting member 50 contacting with tapered belt guiding surfaces 22 of the moving pulleys 21 is provided. The groove width adjusting member 50 is moved in a pulley diameter direction by a linear motion actuator 60, thereby downsizing the V-belt continuously variable transmission.</p> |
