| 摘要 |
<p>The present invention relates to an actuating device for the varying ratio of a continuously variable transmission in a vehicle equipped with an internal combustion engine, the actuating device comprising two sleeves (11, 12), respectively fitted with a lead screw (16) and an internal screw (15) and engaged with one another in such a way that a relative rotation is transformed into a relative translation; the sleeves (11, 12) comprising ring-shaped grooves (17a, 17b) which allow the sleeves to rotate freely relative to one another without any translation when the sleeves (11, 12) are in the condition of maximum reciprocal penetration; the function of the actuating device is preferably performed by the same electric motor as is used to start the internal combustion engine.</p> |
