CONE WITH MEMBER CVT FOR WHICH BELT TENSION CAN BE REDUCED

摘要

A CVT 6 (FIG. 9) comprising of two substantially identical CVT 4's. Each CVT 4 comprises of two cones that are coupled by a transmission belt. The driving cones of the CVT 4's are mounted on a common shaft, and the driven cones of the CVT 4's are mounted on a common shaft. For each CVT 4, one of its cones is mounted on its shaft using an adjuster, which uses an indexing mechanism, that can lock or release the rotational position of its cone relative to the shaft it is mounted. Each CVT 4 has a tense side tensioning/support pulley and a slack side tensioning/support pulley (FIG. 6) which can provide and remove slack as needed to allow for axial position changing of a cone for all operating conditions of their CVT without breaking/excessively stretching a transmission belt.

主权项

1. A CVT 6 for which the tension in a transmission belt can be reduced, which will reduce the transmission ratio changing force needed, reduce the shock loads that occur during transmission ratio changing, and reduce wear due to transmission ratio changing, comprising:
a) two CVT 4's, each said CVT 4 comprises of a cone, which is a cone with one torque transmitting member, that is coupled by a transmission belt to another cone, which is also cone with one torque transmitting member;
for said CVT 6, the driven said cones of said CVT 4's are mounted on a common shaft/spline and the driving said cones of said CVT 4's are mounted on a another common shaft/spline; b) two adjusters, one for each said CVT 4;
one adjuster is used to mount a said cone of a said CVT 4 to its said shaft/spline; andthe other adjuster is used to mount a said cone of the other said CVT 4 to its said shaft/spline;each said adjuster can be used to lock its said cone for rotation relative to its said shaft/spline, and unlock its said cone for rotation relative to its said shaft/spline.