BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a general front view of a wave gear drive according to the present invention.
FIG. 2 is an explanatory diagram showing an axial cross-section that includes the flexing condition of the flexible external gear, with (a) showing the state before deformation, (b) a cross-section that includes the major axis of the ellipse after deformation, and (c) a cross-section that includes the minor axis of the ellipse after deformation.
FIG. 3 shows the moving route of a rack in a case in which the tooth profile formation of the present invention is based on κ>1.
FIG. 4 is an explanatory diagram showing the moving route of FIG. 3 utilized for tooth profile formation.
FIG. 5 is an explanatory diagram showing an example of the tooth profiles set for the two gears.
FIG. 6 is an explanatory diagram showing the tooth shape used by the two gears to realize effective meshing other than at the main cross-section.