Continuously variable transmission
First Claim
1. An apparatus for facilitating the shifting of a continuously variable transmission (“
- CVT”
), the apparatus comprising;
a first shift cam disc having an inner bore, wherein the first shift cam disc also has a side with a convex curved shape extending from the vicinity of the inner bore to a periphery of the first shift cam disc;
a second shift cam disc having an inner bore, wherein the second shift cam disc also has a side with a convex curved shape extending from the vicinity of the inner bore to a the periphery of the second shift cam disc; and
an extension member adapted to couple the first shift cam disc to the second shift cam disc, the extension member having a generally cylindrical hollow body and comprising a bore through, that is perpendicular to the hollow body, for receiving a shift pin of the CVT.
8 Assignments
0 Petitions
Accused Products
Abstract
A continuously variable transmission (CVT) having a main shaft configured to support and position various components of the CVT. Shift cam discs cooperate with ball-leg assemblies to shift the transmission ration of the CVT. Load cam discs, a torsion disc, rolling elements, and a hub cap shell are configured to generate axial force, transmit torque, and manage reaction forces. In one embodiment, a splined input shaft and a torsion disc having a splined bore cooperate to input torque into the variator of the CVT. Among other things, various ball axles, axle-ball combinations, and reaction force grounding configurations are disclosed. In one embodiment, a CVT having axial force generation means at both the input and output elements is disclosed.
362 Citations
18 Claims
-
1. An apparatus for facilitating the shifting of a continuously variable transmission (“
- CVT”
), the apparatus comprising;a first shift cam disc having an inner bore, wherein the first shift cam disc also has a side with a convex curved shape extending from the vicinity of the inner bore to a periphery of the first shift cam disc; a second shift cam disc having an inner bore, wherein the second shift cam disc also has a side with a convex curved shape extending from the vicinity of the inner bore to a the periphery of the second shift cam disc; and an extension member adapted to couple the first shift cam disc to the second shift cam disc, the extension member having a generally cylindrical hollow body and comprising a bore through, that is perpendicular to the hollow body, for receiving a shift pin of the CVT. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- CVT”
-
13. A method of manufacturing an apparatus for facilitating the shifting of a continuously variable transmission (“
- CVT”
), the method comprising;forming a first shift cam disc having an inner bore, wherein the first shift cam disc also has a side with a convex curved shape extending from the vicinity of the inner bore to the periphery of the first shift cam disc; forming a second shift cam disc having an inner bore, wherein the second shift cam disc also has a side with a convex curved shape extending from the vicinity of the inner bore to the periphery of the second shift cam disc; and forming an extension member to couple the first shift cam disc to the second shift cam disc, the extension member having a generally cylindrical hollow body and comprising a bore through, that is perpendicular to the hollow body, for receiving a shift pin of the CVT. - View Dependent Claims (14, 15, 16, 17, 18)
- CVT”
Specification