| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable increase in transmission torque of a flexible meshing-type gear device. <P>SOLUTION: The flexible meshing-type gear device 100 includes a vibrator 104, an external gear 120, a reduction internal gear 130A and an output internal gear 130B. The vibrator 104 includes the first cam 104A and the second cam 104B with a phase different from that of the first cam 104A. Two parts of a meshing part M and non-meshing part N are provided in an axial direction O. When a distance from the rotation center O to the outer periphery of the external gear 120 is the first distance L1 and a tooth depth of the inner gears 128 of the reduction internal gear 130A and an output internal gear 130B is the second distance L2, in a position in a peripheral direction that the reduction internal gear 130A and output internal gear 130B are meshing with the gears 120A and 120B, the sum of the first distance L1 and second distance L2 on the non-meshing part N is made to be smaller than that of the first distance L1 and second distance L2 on the meshing part M. <P>COPYRIGHT: (C)2013,JPO&INPIT |
