| 摘要 |
<p>Intended is to provide a continuously variable transmission optimum for the case, in which a constitution of a low output power source and a simple mechanism is demanded as in a self-advancing model vehicle. For this intention, an input shaft (2) for inputting the power of a motor (1) is equipped with a pair of opposed half pulleys (4, 6) to form a pulley member, and input-side slide regulating means (60, 7a) for regulating at least the half pulley (6) to slide within a predetermined range only in a direction parallel to the axial direction of that input shaft. A half pulley (13) in the pulley member on an output shaft (10) is equipped with output-side slide regulating means (130, 12a) for regulating itself to slide within predetermined ranges in the axial direction and in the rotational direction. Moreover, the continuously variable transmission performs such speed-changing actions when the output shaft is under a low load that the half-pulley spacing is small on the input side but large on the output side, and when the output shaft is under a high load that the half-pulley spacing is large on the input side but small on the output side.</p> |
