Patent ID: 7785228
Filing Date: 2010-08-31
Classification: B62M,F16H,Y10T

Abstract:
1. A torsion disc for transferring torque and supporting components of a clamping force generation mechanism in a continuously variable transmission, the torsion disc comprising: a disc having a first side, a second side, an outer periphery, and an inner bore; an annular recess formed on the first side; a plurality of splines formed on the inner bore; a first shoulder formed on the disc and configured to support a load cam of the clamping force generation mechanism; and a second shoulder formed on the disc and configured to support a torsion spring of the clamping force generation mechanism; wherein the second shoulder rises from the first shoulder away from the first side reaching a maximum height measured from the first side, wherein the second shoulder rises from the first shoulder and then falls toward the inner bore in a convex shape.