| 摘要 |
Provided is a wave motion generator (5) for a wave motion gear device (1), in which a flexible external gear (4) is flexed into an elliptical shape and meshed with rigid internal gears (2, 3), and the meshing positions of both of the internal gears (2, 3) are moved circumferentially. On the inner side of a rigid plug (6) of the wave motion generator (5), a plug support ring (11) is secured and integrated. The rigid plug (6) is formed from an iron-based material and the plug support ring (11) is formed from a high-rigidity material that is more rigid than the iron-based material. By suppressing deformation of the rigid plug (6), the wave motion generator (5) provided with a large hollow section (9) can be obtained. |
