Continuously variable transmission
First Claim
1. A continuously variable transmission (CVT) comprising:
- a plurality of power roller-leg assemblies each having a skew-shift reaction roller;
an idler assembly operably coupled to, and located radially inward of, each power roller-leg assembly; and
a single-piece carrier having a substantially cylindrical hollow body, the carrier operably coupled to each of the power roller-leg assemblies, wherein each of the power roller-leg assemblies are arranged at least in part on an interior of the hollow body, the carrier configured to contact each of the skew-shift reaction rollers on the interior of the hollow body, the single-piece carrier having a plurality of openings located around the circumference of the hollow body, at least one of the openings dimensioned to allow the idler assembly to pass through the opening to provide clearance for installation and removal of the idler assembly.
9 Assignments
0 Petitions
Accused Products
Abstract
Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a main axle is adapted to receive a shift rod that cooperates with a shift rod nut to actuate a ratio change in a CVT. In another embodiment, an axial force generating mechanism can include a torsion spring, a traction ring adapted to receive the torsion spring, and a roller cage retainer configured to cooperate with the traction ring to house the torsion spring. Various inventive power roller-leg assemblies can be used to facilitate shifting the ratio of a CVT. Embodiments of a hub shell and a hub cover are adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces and braking features for a CVT are disclosed.
480 Citations
6 Claims
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1. A continuously variable transmission (CVT) comprising:
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a plurality of power roller-leg assemblies each having a skew-shift reaction roller; an idler assembly operably coupled to, and located radially inward of, each power roller-leg assembly; and a single-piece carrier having a substantially cylindrical hollow body, the carrier operably coupled to each of the power roller-leg assemblies, wherein each of the power roller-leg assemblies are arranged at least in part on an interior of the hollow body, the carrier configured to contact each of the skew-shift reaction rollers on the interior of the hollow body, the single-piece carrier having a plurality of openings located around the circumference of the hollow body, at least one of the openings dimensioned to allow the idler assembly to pass through the opening to provide clearance for installation and removal of the idler assembly. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification