Patent ID: 7578045
Filing Date: 2009-08-25
Classification: F16H,Y10T

Abstract:
1. A method of manufacturing a trunnion, for toroidal continuously variable transmission, wherein the trunnion including: an oblique surface, a bottom surface, an inclining shaft having an end surface and an inclining end surface, a pivot hole, an inner flat plane, and a crossing lubrication hole, the method comprising: clamping a trunnion material by taking the oblique surface or the bottom surface as a machining reference and by taking one of the end surface and the inclining end surface as an axial positioning reference; machining the clamped trunnion material to form the inner flat plane, the pivot hole and the crossing lubrication hole of the trunnion; and turning a pair of inclining shafts of the trunnion while taking the inner flat plane and pivot hole that are machined as a machining reference.