Patent ID: 8967012
Filing Date: 2015-03-03
Classification: F16H,Y10T

Abstract:
1. A double involute pinion-face gear drive comprising, in combination, a double involute pinion disposed on a first axis and having a cylindrical periphery, said double involute pinion having a plurality of normal involute teeth disposed radially on said cylindrical periphery and shaped along an involute curve in a lengthwise direction of said normal involute teeth, of one of left-hand and right-hand helix angle and a face gear disposed on a second axis and having a pair of side faces, said face gear disposed orthogonal to and spaced from said first axis at a predetermined center distance, said face gear in mesh with said double involute pinion and having a plurality of teeth disposed on one of said side faces and shaped along an involute curve in a lengthwise direction of said teeth, of one of left-hand and right-hand helix angle; said double involute pinion having its pitch plane perpendicular to said first axis, containing a double involute pinion pitch circle and the pitch point as the common point of instantaneous contact between the pinion and face gear teeth surfaces; said face gear having its pitch plane perpendicular to said second axis, containing the face gear base circle from which said plurality of teeth of said face gear are generated and the pitch point as the common point of instantaneous contact between the pinion and face gear teeth surfaces; said double involute pinion pitch plane being in a predetermined arrangement relative to said face gear base circle, wherein said double involute pinion is integrally formed with a shank and said shank is aligned with said first axis.